CN116593789A - Electromagnetic radiation measuring tool and electromagnetic radiation measuring method - Google Patents
Electromagnetic radiation measuring tool and electromagnetic radiation measuring method Download PDFInfo
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- 230000005670 electromagnetic radiation Effects 0.000 title claims abstract description 236
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The application relates to an electromagnetic radiation measurement tool and an electromagnetic radiation measurement method. The electromagnetic radiation measurement tool comprises a detection device and a main control device, wherein the detection device is used for detecting electromagnetic radiation signals of target equipment and converting the electromagnetic radiation signals into initial signal voltage values, and the initial signal voltage values are used for representing the sizes of electromagnetic radiation corresponding to the electromagnetic radiation signals. The main control device is connected with the output end of the detection device and is used for carrying out environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, and the target signal voltage value is used as an electromagnetic radiation measurement result of target equipment. By adopting the tool, the electromagnetic radiation measurement error in the common measurement environment can be reduced, the electromagnetic radiation measurement result in the darkroom environment of the third-party electromagnetic compatibility laboratory can be simulated in the common measurement environment, and the electromagnetic radiation measurement flexibility is improved.
Description
Technical Field
The application relates to the technical field of electromagnetic field measurement, in particular to an electromagnetic radiation measurement tool and an electromagnetic radiation measurement method.
Background
With the development of technology, the electric and electronic equipment is widely applied in the production and life of people. The above devices may generate electromagnetic radiation during operation, and these electromagnetic energy may affect the normal operation of other devices, so it is necessary to measure the electromagnetic radiation of the device to be on-line to determine whether the device meets the requirements of electromagnetic compatibility (Electro Magnetic Compatibility, EMC) standards, so that research personnel can take targeted measures in time.
Currently, if the electromagnetic radiation of the device needs to be measured, the device needs to be sent to a professional third party electromagnetic compatibility laboratory, and the third party laboratory is used for measuring the electromagnetic radiation of the device.
However, the manner in which the device is sent to a third party electromagnetic compatibility laboratory for measurement has a problem of low flexibility.
Disclosure of Invention
In view of the foregoing, it is desirable to provide an electromagnetic radiation measuring tool and an electromagnetic radiation measuring method that can improve flexibility of electromagnetic radiation measurement.
In a first aspect, the application provides an electromagnetic radiation measurement tool. This frock includes:
the detection device is used for detecting an electromagnetic radiation signal of the target equipment and converting the electromagnetic radiation signal into an initial signal voltage value, wherein the initial signal voltage value is used for representing the magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal;
The main control device is connected with the output end of the detection device and is used for carrying out environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, and the target signal voltage value is used as an electromagnetic radiation measurement result of the target equipment.
In the above embodiment, the electromagnetic radiation measurement tool includes a detection device and a main control device, where the detection device is configured to detect an electromagnetic radiation signal of the target device, and convert the electromagnetic radiation signal into an initial signal voltage value, where the initial signal voltage value is used to characterize a magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal. The main control device is connected with the output end of the detection device and is used for carrying out environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, and the target signal voltage value is used as an electromagnetic radiation measurement result of target equipment. The initial signal voltage value may be indicative of a magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal, e.g., the initial signal voltage value is positively correlated with electromagnetic radiation corresponding to the electromagnetic radiation signal, and when the initial signal voltage value is large, it is indicative that the electromagnetic radiation is also large. By performing environment interference correction processing on the initial signal voltage value, the error of electromagnetic radiation measurement in a common measurement environment can be reduced, the electromagnetic radiation measurement result in a darkroom environment of a third-party electromagnetic compatibility laboratory can be simulated in the common measurement environment, and the flexibility of electromagnetic radiation measurement is improved.
In one embodiment, the master device comprises a CPLD circuit and a microcontroller which are connected with each other;
the CPLD circuit is used for detecting whether the signal state of the electromagnetic radiation signal is normal or not according to the initial signal voltage value;
and the microcontroller is used for carrying out environment interference correction processing on the initial signal voltage value under the condition that the signal state is normal to obtain the target signal voltage value, and taking the target signal voltage value as the electromagnetic radiation measurement result.
In this embodiment, the master device includes a CPLD circuit and a microcontroller that are connected to each other. And the CPLD circuit is used for detecting whether the signal state of the electromagnetic radiation signal is normal or not according to the initial signal voltage value. And the microcontroller is used for carrying out environment interference correction processing on the initial signal voltage value under the condition that the signal state is normal, obtaining a target signal voltage value and taking the target signal voltage value as an electromagnetic radiation measurement result. The method provided by the embodiment can be used for carrying out environment interference correction on the initial signal voltage value to obtain the target signal voltage value, so that the method provided by the embodiment can be used for reducing the error of electromagnetic radiation measurement in a common measurement environment. Under the condition of abnormal signal state, the initial signal voltage value can be directly discarded, so that the accuracy of electromagnetic radiation measurement is further improved.
In one embodiment, the input end of the CPLD circuit is provided with an or circuit, the output end of the detection device comprises a positive output end and a negative output end, and the receiving pin of the or circuit is respectively connected with the positive output end and the negative output end;
the OR gate circuit is used for acquiring the initial signal voltage value from the positive electrode output end or the negative electrode output end.
In this embodiment, the input end of the CPLD circuit is provided with an or circuit, and the output end of the detection device includes an anode output end and a cathode output end, and a receiving pin of the or circuit is connected with the anode output end and the cathode output end respectively. The OR gate circuit is used for acquiring an initial signal voltage value from the positive electrode output end or the negative electrode output end. Because the OR gate circuit is arranged between the CPLD circuit and the detection device, the initial signal voltage value can be received by the CPLD circuit no matter from the positive output end or the negative output end.
In one embodiment, the master control apparatus further includes:
and the clock buffer is connected with the CPLD circuit and used for providing a clock signal for the CPLD circuit.
In this embodiment, the master control device further includes a clock buffer, which is connected to the CPLD circuit and is configured to provide a clock signal to the CPLD circuit, where the clock buffer can effectively reduce system cost and simplify circuit design.
In one embodiment, the master control apparatus further includes:
and the power supply module is respectively connected with the CPLD circuit and the microcontroller and is used for supplying power to the CPLD circuit and the microcontroller.
In this embodiment, the main control device further includes a power supply module, which is connected to the CPLD circuit and the microcontroller, respectively, and the power supply module is capable of supplying power to the CPLD circuit and the microcontroller, so as to provide support for stable operation of the main control device.
In one embodiment, the electromagnetic radiation measurement tool further comprises:
and the alarm device is connected with the main control device and is used for outputting alarm information under the condition that the main control device is abnormal.
In this embodiment, the electromagnetic radiation measurement tool further includes an alarm device connected with the main control device, and configured to output alarm information when the main control device is abnormal. Through the alarm information, the user can be reminded to carry out corresponding abnormal processing in time, and the measurement efficiency of the electromagnetic radiation measurement tool is improved.
In one embodiment, the electromagnetic radiation measurement tool further comprises:
the display device is connected with the main control device and used for converting the voltage value of the target signal into a frequency spectrum waveform and visually displaying the frequency spectrum waveform.
In this embodiment, the electromagnetic radiation measurement tool further includes a display device, connected to the main control device, configured to convert the voltage value of the target signal into a spectrum waveform, and visually display the spectrum waveform, so that a user can intuitively obtain an electromagnetic radiation measurement result of the target device.
In a second aspect, the application also provides an electromagnetic radiation measurement method. The method comprises the following steps:
detecting an electromagnetic radiation signal of a target device, and converting the electromagnetic radiation signal into an initial signal voltage value, wherein the initial signal voltage value is used for representing the magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal;
and performing environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, and taking the target signal voltage value as an electromagnetic radiation measurement result of the target device.
In the above embodiment, by detecting the electromagnetic radiation signal of the target device and converting the electromagnetic radiation signal into the initial signal voltage value, the initial signal voltage value is used to characterize the magnitude of the electromagnetic radiation corresponding to the electromagnetic radiation signal. And performing environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, and taking the target signal voltage value as an electromagnetic radiation measurement result of target equipment. Because the method provided by the embodiment can perform environment interference correction on the initial signal voltage value to obtain the target signal voltage value, the method provided by the embodiment can reduce the error of electromagnetic radiation measurement in a common measurement environment, simulate the electromagnetic radiation measurement result of a third party electromagnetic compatibility laboratory in a darkroom environment in the common measurement environment, and improve the flexibility of electromagnetic radiation measurement.
In one embodiment, the method further comprises:
detecting whether the signal state of the electromagnetic radiation signal is normal or not according to the initial signal voltage value;
the performing the environmental interference correction processing on the initial signal voltage value to obtain a target signal voltage value, including:
if the signal state is normal, performing environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value.
In this embodiment, whether the signal state of the electromagnetic radiation signal is normal is detected according to the initial signal voltage value, and if the signal state is normal, the initial signal voltage value is subjected to the environmental interference correction processing to obtain the target signal voltage value. The method provided by the embodiment can be used for carrying out environment interference correction on the initial signal voltage value to obtain the target signal voltage value, so that the method provided by the embodiment can be used for reducing the error of electromagnetic radiation measurement in a common measurement environment.
In one embodiment, the performing the environmental interference correction on the initial signal voltage value to obtain a target signal voltage value includes:
and obtaining an environment interference correction value, and correcting the initial signal voltage value by using the environment interference correction value to obtain the target signal voltage value, wherein the environment interference correction value is used for representing electromagnetic radiation measurement errors in the current measurement environment and the darkroom measurement environment.
In this embodiment, an environmental interference correction value is obtained, and an initial signal voltage value is corrected by using the environmental interference correction value to obtain a target signal voltage value, where the environmental interference correction value is used to characterize electromagnetic radiation measurement errors in a current measurement environment and a darkroom measurement environment. By the method, errors of electromagnetic radiation measurement can be reduced, electromagnetic radiation measurement results in a darkroom environment can be simulated in a common measurement environment, and flexibility of electromagnetic radiation measurement is improved.
In the above embodiment, the electromagnetic radiation measurement tool includes a detection device and a main control device, where the detection device is configured to detect an electromagnetic radiation signal of the target device, and convert the electromagnetic radiation signal into an initial signal voltage value, where the initial signal voltage value is used to characterize a magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal. The main control device is connected with the output end of the detection device and is used for carrying out environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, and the target signal voltage value is used as an electromagnetic radiation measurement result of target equipment. The initial signal voltage value may be indicative of a magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal, e.g., the initial signal voltage value is positively correlated with electromagnetic radiation corresponding to the electromagnetic radiation signal, and when the initial signal voltage value is large, it is indicative that the electromagnetic radiation is also large. By performing environment interference correction processing on the initial signal voltage value, the error of electromagnetic radiation measurement in a common measurement environment can be reduced, the electromagnetic radiation measurement result in a darkroom environment of a third-party electromagnetic compatibility laboratory can be simulated in the common measurement environment, and the flexibility of electromagnetic radiation measurement is improved.
Drawings
FIG. 1 is a block diagram of an electromagnetic radiation measurement tool in one embodiment;
FIG. 2 is a block diagram of a master device in one embodiment;
FIG. 3 is a block diagram of another embodiment of an electromagnetic radiation measurement tool;
FIG. 4 is a block diagram of a master device according to another embodiment;
FIG. 5 is a block diagram of a master device according to another embodiment;
FIG. 6 is a block diagram of an electromagnetic radiation measurement tool in another embodiment;
FIG. 7 is a block diagram of an electromagnetic radiation measurement tool in another embodiment;
FIG. 8 is a block diagram of an electromagnetic radiation measurement tool in another embodiment;
FIG. 9 is a flow chart of a method of electromagnetic radiation measurement in one embodiment;
FIG. 10 is a flow chart of an electromagnetic radiation measurement method according to another embodiment;
FIG. 11 is a flow chart of an electromagnetic radiation measurement method according to another embodiment.
Reference numerals illustrate:
101-a detection device; 102-a master control device; 201-CPLD circuit;
202-a microcontroller; 301-or gate circuit; 302-positive output;
303-negative output; 401-clock buffer; 501-a power supply module;
601 an alarm device; 701-a display device; 801-near field probe;
802-MCU; 803-spectrum analyzer; 804-a conversion module.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Embodiments of the application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that the terms first, second, etc. as used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the application. Both the first resistor and the second resistor are resistors, but they are not the same resistor.
It is to be understood that in the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", etc., if the connected circuits, modules, units, etc., have electrical or data transfer between them.
It is understood that "at least one" means one or more and "a plurality" means two or more. "at least part of an element" means part or all of the element.
As used herein, the singular forms "a", "an" 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," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Also, the term "and/or" as used in this specification includes any and all combinations of the associated listed items.
With the development of technology, the electric and electronic equipment is widely applied in the production and life of people. The above devices may generate electromagnetic radiation during operation, and these electromagnetic energy may affect the normal operation of other devices, so it is necessary to measure the electromagnetic radiation of the device to be on-line to determine whether the device meets the requirements of electromagnetic compatibility (Electro Magnetic Compatibility, EMC) standards, so that research personnel can take targeted measures in time.
Currently, if the electromagnetic radiation of the device needs to be measured, the device needs to be sent to a professional third party electromagnetic compatibility laboratory, and the third party laboratory is used for measuring the electromagnetic radiation of the device.
The measuring equipment in the third-party laboratory mainly comprises an electromagnetic interference (Electro Magnetic Interference, EMI) automatic test control system (comprising a computer and software), an EMI measuring receiver or a spectrum analyzer, a large-small loop antenna, a power biconical antenna, a log-periodic antenna, a horn antenna, an antenna control unit and an anechoic chamber.
The common measurement laboratory can only roughly measure the electromagnetic radiation, and the test instrument and equipment mainly comprises a spectrum analyzer, a near-field probe and a common laboratory environment. Because the ordinary measurement laboratory does not possess the anechoic chamber like the third party laboratory, the anechoic chamber can shield electromagnetic interference outside the anechoic chamber, and therefore, the measurement result error obtained by using the ordinary measurement laboratory to measure electromagnetic radiation is large.
However, the manner of sending the device to the third party electromagnetic compatibility laboratory for measurement is costly, long in time, high in error correction cost, and affects the project development progress, i.e., the manner of sending the device to the third party electromagnetic compatibility laboratory for measurement has a problem of low flexibility.
To solve the above problem, in one embodiment, as shown in fig. 1, there is provided an electromagnetic radiation measurement tool, including:
the detecting device 101 is configured to detect an electromagnetic radiation signal of the target device, and convert the electromagnetic radiation signal into an initial signal voltage value, where the initial signal voltage value is used to characterize a magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal.
The main control device 102 is connected to the output end of the detection device 101, and is configured to perform an environmental interference correction process on the initial signal voltage value, obtain a target signal voltage value, and use the target signal voltage value as an electromagnetic radiation measurement result of the target device.
Alternatively, the detection means 101 may be a near field probe; the target equipment can be equipment to be on line, which needs to perform electrical measurement and radiation measurement; the initial signal voltage value may be indicative of a magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal, e.g., the initial signal voltage value is positively correlated with the electromagnetic radiation corresponding to the electromagnetic radiation signal. I.e. the larger the initial signal voltage value is, the larger the electromagnetic radiation corresponding to the characteristic electromagnetic radiation signal is, and the smaller the initial signal voltage value is, the smaller the electromagnetic radiation corresponding to the characteristic electromagnetic radiation signal is.
In this embodiment, the electromagnetic radiation measurement tool may include a detection device 101 and a main control device 102, where the main control device 102 is connected to an output end of the detection device 101. The detection device 101 may be closely attached to or close to the target device within a preset range, so as to detect an electromagnetic radiation signal of the target device; after the detection device 101 acquires the electromagnetic radiation signal of the target device, the electromagnetic radiation signal can be converted into an initial signal voltage value according to an internal algorithm of the detection device 101, so that the main control device 102 performs environment interference correction processing on the initial signal voltage value, and the initial signal voltage value is used for representing the electromagnetic radiation corresponding to the electromagnetic radiation signal.
The output end of the detection device 101 outputs an initial signal voltage value to the main control device 102, the main control device 102 can utilize electromagnetic radiation measurement errors in the current measurement environment and the darkroom measurement environment to perform environment interference correction processing on the initial signal voltage value, and a target signal voltage value is obtained after the correction processing and can be used as an electromagnetic radiation measurement result of target equipment.
In the above embodiment, the electromagnetic radiation measurement tool includes a detecting device 101 and a main control device 102, where the detecting device 101 is configured to detect an electromagnetic radiation signal of a target device, and convert the electromagnetic radiation signal into an initial signal voltage value, where the initial signal voltage value is used to characterize the magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal. The main control device 102 is connected to an output end of the detection device 101, and is configured to perform an environmental interference correction process on the initial signal voltage value, obtain a target signal voltage value, and use the target signal voltage value as an electromagnetic radiation measurement result of the target device. The initial signal voltage value may be indicative of a magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal, e.g., the initial signal voltage value is positively correlated with electromagnetic radiation corresponding to the electromagnetic radiation signal, and when the initial signal voltage value is large, it is indicative that the electromagnetic radiation is also large. By performing environment interference correction processing on the initial signal voltage value, the error of electromagnetic radiation measurement in a common measurement environment can be reduced, the electromagnetic radiation measurement result in a darkroom environment of a third-party electromagnetic compatibility laboratory can be simulated in the common measurement environment, and the flexibility of electromagnetic radiation measurement is improved.
In one embodiment, as shown in fig. 2, the master device 102 includes a CPLD circuit 201 and a microcontroller 202 that are interconnected.
The CPLD circuit 201 is configured to detect whether the signal state of the electromagnetic radiation signal is normal according to the initial signal voltage value.
And the microcontroller 202 is used for performing environment interference correction processing on the initial signal voltage value under the condition that the signal state is normal, obtaining a target signal voltage value, and taking the target signal voltage value as an electromagnetic radiation measurement result.
It should be noted that a CPLD (Complex Programmable Logic Device ) circuit is a digital integrated circuit in which a user constructs a logic function by himself as required. The microcontroller may be an MCU (Microcontroller Unit, micro control unit) which is a single-chip microcomputer or a single-chip microcomputer.
Alternatively, the signal state of the electromagnetic radiation signal may be normal or abnormal, for example, if the electromagnetic radiation signal is at least one of low frequency, high frequency, overvoltage, transient, the signal state of the electromagnetic radiation signal is abnormal. The CPLD circuit 201 and the microcontroller 202 may transmit data via a UART (Universal Asynchronous Receiver/Transmitter, universal asynchronous receiver Transmitter).
In this embodiment, the master device 102 may include a CPLD circuit 201 and a microcontroller 202 that are interconnected. The CPLD circuit 201 may output an initial signal voltage value to the main control device 102 according to an output terminal of the detecting device 101, detect whether at least one of low frequency, high frequency, overvoltage, and transient occurs in a signal state of the electromagnetic radiation signal, and consider that the signal state of the electromagnetic radiation signal is normal if the signal state does not occur. Under the condition that the signal state is normal, the microcontroller 202 can perform environmental interference correction processing on the initial signal voltage value according to an environmental interference correction program built in the singlechip to obtain a target signal voltage value, and the microcontroller 202 can transmit the target signal voltage value to the CPLD circuit 201 and can use the target signal voltage value as an electromagnetic radiation measurement result.
In this embodiment, the master device 102 includes a CPLD circuit 201 and a microcontroller 202 that are interconnected. The CPLD circuit 201 is configured to detect whether the signal state of the electromagnetic radiation signal is normal according to the initial signal voltage value. And the microcontroller 202 is used for performing environment interference correction processing on the initial signal voltage value under the condition that the signal state is normal, obtaining a target signal voltage value, and taking the target signal voltage value as an electromagnetic radiation measurement result. The method provided by the embodiment can be used for carrying out environment interference correction on the initial signal voltage value to obtain the target signal voltage value, so that the method provided by the embodiment can be used for reducing the error of electromagnetic radiation measurement in a common measurement environment. Under the condition of abnormal signal state, the initial signal voltage value can be directly discarded, so that the accuracy of electromagnetic radiation measurement is further improved.
In one embodiment, as shown in fig. 3, an or circuit 301 is disposed at an input end of the CPLD circuit 201, and an output end of the detecting device 101 includes a positive output end 302 and a negative output end 303, and a receiving pin of the or circuit 301 is connected to the positive output end 302 and the negative output end 303, respectively.
An or circuit 301 for acquiring an initial signal voltage value from the positive output terminal 302 or the negative output terminal 303.
Specifically, the input terminal of the CPLD circuit 201 may be provided with an or circuit 301, the output terminal of the detection device 101 may include a positive output terminal 302 and a negative output terminal 303, and the receiving pin of the or circuit 301 may be connected to the positive output terminal 302 and the negative output terminal 303, respectively. The or circuit 301 may obtain the initial signal voltage value from the positive output 302 or the negative output 303 of the detection device 101. It should be noted that, the positive output terminal 302 and the negative output terminal 303 of the detecting device 101 may be BNC (Bayonet Neill-consterman, nier-Kang Saiman Bayonet) connector terminals, and the BNC connector includes three parts including a BNC connector base, a jacket and a probe.
In this embodiment, the input end of the CPLD circuit 201 is provided with an or circuit 301, and the output end of the detection device 101 includes an anode output end 302 and a cathode output end 303, and the receiving pins of the or circuit 301 are respectively connected with the anode output end 302 and the cathode output end 303. The or circuit 301 is used to obtain an initial signal voltage value from the positive output terminal 302 or the negative output terminal 303. Since the or circuit 301 is provided between the CPLD circuit 201 and the detecting device 101, it is ensured that the initial signal voltage value can be received by the CPLD circuit 201 both from the positive output terminal 302 and from the negative output terminal 303.
In one embodiment, as shown in fig. 4, the master device 102 further includes:
the clock buffer 401 is connected to the CPLD circuit 201 and is configured to supply a clock signal to the CPLD circuit 201.
The clock buffer 401 is a device that generates multiple clock signals by frequency-copying a single clock source signal.
In this embodiment, the master device 102 may further include a clock buffer 401, where the clock buffer 401 may be connected to the CPLD circuit 201, and the clock buffer 401 may provide a clock signal to the CPLD circuit 201, and may be used for subsequent functional expansion, for example, to connect to another probe device.
In this embodiment, the master device 102 further includes a clock buffer 401, which is connected to the CPLD circuit 201 and is used for providing a clock signal to the CPLD circuit 201, and the clock buffer can effectively reduce the system cost and simplify the circuit design.
In one embodiment, as shown in fig. 5, the master device 102 further includes:
the power supply module 501 is respectively connected with the CPLD circuit 201 and the microcontroller 202 and is used for supplying power to the CPLD circuit 201 and the microcontroller 202.
In this embodiment, the master device 102 may further include a power supply module 501, where the power supply module 501 may be connected to the CPLD circuit 201, and may also be connected to the microcontroller 202, and the power supply module 501 is connected to the CPLD circuit 201 and the microcontroller 202 respectively to supply power to the CPLD circuit 201 and the microcontroller 202.
In this embodiment, the master device 102 further includes a power supply module 501, which is connected to the CPLD circuit 201 and the microcontroller 202, respectively, where the power supply module 501 can supply power to the CPLD circuit 201 and the microcontroller 202, so as to provide support for the stable operation of the master device 102.
In one embodiment, as shown in fig. 6, the electromagnetic radiation measurement tool further includes:
the alarm device 601 is connected to the master device 102, and is configured to output alarm information when the master device 102 is abnormal.
Alternatively, the alarm device may illuminate an indicator light, whistle, etc. when the master control device 102 is abnormal.
Specifically, the electromagnetic radiation measurement tool may further include an alarm device 601, where the alarm device 601 is connected to the master control device 102. When the CPLD circuit in the main control device 102 detects that the signal state of the electromagnetic radiation signal is abnormal, alarm information is output; alternatively, the alarm information may be output when the initialization of the master device 102 is abnormal or the initialization is not completed at a preset time.
In this embodiment, the electromagnetic radiation measurement tool further includes an alarm device 601 connected to the main control device 102, and configured to output alarm information when the main control device 102 is abnormal. Through the alarm information, the user can be reminded to carry out corresponding abnormal processing in time, and the measurement efficiency of the electromagnetic radiation measurement tool is improved.
In one embodiment, as shown in fig. 7, the electromagnetic radiation measurement tool further includes:
the display device 701 is connected to the master control device 102, and is configured to convert the target signal voltage value into a spectrum waveform, and visually display the spectrum waveform.
Alternatively, the display device 701 may be a spectrum analyzer.
In this embodiment, the electromagnetic radiation measurement tool may further include a display device 701, where the display device 701 may be connected to the main control device 102, and the display device 701 receives the target signal voltage value sent by the main control device 102, converts the target signal voltage value into a spectrum waveform, and visually displays the spectrum waveform for a user to watch or archive.
In this embodiment, the electromagnetic radiation measurement tool further includes a display device 701, which is connected to the main control device 102, and is configured to convert a voltage value of a target signal into a spectrum waveform, and visually display the spectrum waveform, so that a user can intuitively obtain an electromagnetic radiation measurement result of the target device.
Embodiments of the present disclosure are described below in conjunction with a specific electromagnetic radiation measurement scenario, as shown in fig. 8:
the near field probe 801 (i.e., the detection apparatus 101 of the above embodiment) detects an electromagnetic radiation signal of the target device, converts the electromagnetic radiation signal into an initial signal voltage value, and transmits the initial signal voltage value to the or circuit in the conversion module 804 (i.e., the main control apparatus 102 of the above embodiment) through the positive output terminal and the negative output terminal of the near field probe.
The or circuit 301 transmits an initial signal voltage value to the CPLD circuit, and the initial signal voltage value detects whether the signal state of the electromagnetic radiation signal is normal according to the initial signal voltage value.
If the signal state is normal, the CPLD circuit 201 transmits the initial signal voltage value to the MCU802 (i.e., the microcontroller 202 in the above embodiment), the MCU802 performs the environmental interference correction process on the initial signal voltage value to obtain the target signal voltage value, and transmits the target signal voltage value to the CPLD circuit 201.
The CPLD circuit 201 transmits the target signal voltage value to the spectrum analyzer 803 (i.e., the display device 701 of the above embodiment), and the spectrum analyzer 803 converts the target signal voltage value into a spectrum waveform and visually displays the spectrum waveform.
The clock buffer 401 is connected to the CPLD circuit 201, and is used for providing a clock signal to the CPLD circuit 201, the power supply module 501 is respectively connected to the CPLD circuit 201 and the MCU802, and is used for supplying power to the CPLD circuit 201 and the MCU802, and the alarm device 601 is connected to the conversion module 804, and is used for outputting alarm information when the conversion module 804 is abnormal.
The modules in the electromagnetic radiation measurement tool can be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
Based on the same inventive concept, the embodiment of the application also provides an electromagnetic radiation measurement method for realizing the electromagnetic radiation measurement tool. The implementation of the solution provided by the device is similar to that described in the above method, so the specific limitations in one or more embodiments of the electromagnetic radiation measurement method provided below can be referred to above for limitations of the electromagnetic radiation measurement tool, and will not be repeated here.
In one embodiment, as shown in FIG. 9, there is provided an electromagnetic radiation measurement method comprising the steps of:
s901, detecting an electromagnetic radiation signal of a target device, and converting the electromagnetic radiation signal into an initial signal voltage value, wherein the initial signal voltage value is used for representing the electromagnetic radiation corresponding to the electromagnetic radiation signal.
In this embodiment, the electromagnetic radiation measurement tool includes a detection device 101 and a main control device 102. The detection device 101 may be in close proximity or in proximity to the target device within a preset range to detect electromagnetic radiation signals of the target device; after the detection device 101 acquires the electromagnetic radiation signal of the target device, the electromagnetic radiation signal may be converted into an initial signal voltage value, where the initial signal voltage value is used to represent the magnitude of the electromagnetic radiation corresponding to the electromagnetic radiation signal.
S902, performing environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, and taking the target signal voltage value as an electromagnetic radiation measurement result of target equipment.
In this embodiment, the output end of the detecting device 101 outputs an initial signal voltage value to the main control device 102, and the main control device 102 may perform an environmental interference correction process on the initial signal voltage value, and obtain a target signal voltage value after the correction process, where the target signal voltage value may be used as an electromagnetic radiation measurement result of the target device.
In the above embodiment, by detecting the electromagnetic radiation signal of the target device and converting the electromagnetic radiation signal into the initial signal voltage value, the initial signal voltage value is used to characterize the magnitude of the electromagnetic radiation corresponding to the electromagnetic radiation signal. And performing environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, and taking the target signal voltage value as an electromagnetic radiation measurement result of target equipment. Because the method provided by the embodiment can perform environment interference correction on the initial signal voltage value to obtain the target signal voltage value, the method provided by the embodiment can reduce the error of electromagnetic radiation measurement in a common measurement environment, simulate the electromagnetic radiation measurement result of a third party electromagnetic compatibility laboratory in a darkroom environment in the common measurement environment, and improve the flexibility of electromagnetic radiation measurement.
In one embodiment, as shown in fig. 10, the method further comprises:
s1001, detecting whether the signal state of the electromagnetic radiation signal is normal or not according to the initial signal voltage value.
Alternatively, the signal state of the electromagnetic radiation signal may be normal or abnormal, for example, if the electromagnetic radiation signal is at least one of low frequency, high frequency, overvoltage, transient, the signal state of the electromagnetic radiation signal is abnormal.
In this embodiment, the CPLD circuit 201 in the electromagnetic radiation measurement tool may output an initial signal voltage value to the main control device 102 according to the output end of the detection device 101, detect whether at least one of low frequency, high frequency, overvoltage and transient occurs in the signal state of the electromagnetic radiation signal, and consider that the signal state of the electromagnetic radiation signal is normal if no signal state occurs.
Performing environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, including:
s1002, if the signal state is normal, performing environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value.
In this embodiment, if the signal state is normal, the microcontroller 202 may perform the environmental interference correction process on the initial signal voltage value according to the environmental interference correction program built in the singlechip thereof, to obtain the target signal voltage value, and use the target signal voltage value as the electromagnetic radiation measurement result.
In this embodiment, whether the signal state of the electromagnetic radiation signal is normal is detected according to the initial signal voltage value, and if the signal state is normal, the initial signal voltage value is subjected to the environmental interference correction processing to obtain the target signal voltage value. The method provided by the embodiment can be used for carrying out environment interference correction on the initial signal voltage value to obtain the target signal voltage value, so that the method provided by the embodiment can be used for reducing the error of electromagnetic radiation measurement in a common measurement environment.
In the scenario where the initial signal voltage value is subjected to the environmental interference correction process to obtain the target signal voltage value, S1002 includes:
and acquiring an environment interference correction value, and correcting the initial signal voltage value by using the environment interference correction value to obtain a target signal voltage value, wherein the environment interference correction value is used for representing electromagnetic radiation measurement errors in the current measurement environment and the darkroom measurement environment.
The ambient interference correction value can be used to represent electromagnetic radiation measurement errors in the current measurement environment and the darkroom measurement environment.
In this embodiment, the microcontroller 202 may acquire an ambient interference correction value, and perform correction processing on the initial signal voltage value by using the ambient interference correction value to obtain the target signal voltage value. For example, the absolute value of the initial signal voltage value may be differenced from the environmental disturbance correction value, and the resulting difference may be used as the target signal voltage value.
In this embodiment, an environmental interference correction value is obtained, and an initial signal voltage value is corrected by using the environmental interference correction value to obtain a target signal voltage value, where the environmental interference correction value is used to characterize electromagnetic radiation measurement errors in a current measurement environment and a darkroom measurement environment. By the method, errors of electromagnetic radiation measurement can be reduced, electromagnetic radiation measurement results in a darkroom environment can be simulated in a common measurement environment, and flexibility of electromagnetic radiation measurement is improved.
Embodiments of the present disclosure are described below in connection with a specific electromagnetic radiation measurement scenario, as shown in FIG. 11:
s1101, accessing the detection device into the main control device.
S1102, the main control device is connected to the display device.
And S1103, powering up the master control device.
S1104, judging whether the initialization of the main control device is finished, if so, executing S1105; if the abnormality alarm device generates the alarm information, the main control device is powered off, the function and connection of the main control device are checked, and then S1103 is executed.
S1105, the display device is powered on.
And S1106, finishing initialization of the display device.
S1107, setting parameters of the display device.
S1108, the detection device collects electromagnetic radiation signals.
S1109, converting the electromagnetic radiation signal into an initial signal voltage value by the detection device.
S1110, the initial signal voltage value is transmitted to the CPLD circuit through the OR gate circuit.
S1111, CPLD circuit utilizes initial signal voltage value to detect signal state of electromagnetic radiation signal.
S1112, judging whether the state is normal, if so, executing S1113; if so, the alarm device generates alarm information and executes S1108.
S1113, the CPLD circuit sends the initial signal voltage value to the microcontroller.
And 1114, the microcontroller corrects the environmental interference of the initial signal voltage value to obtain a target signal voltage value.
And S1115, the microcontroller sends the target signal voltage value to the CPLD circuit.
S1116, the CPLD circuit transmits the target signal voltage value to the display device.
S1117, the display device converts the voltage value of the target signal into a frequency spectrum waveform and displays the frequency spectrum waveform in a visual mode.
It should be understood that, although the steps in the flowcharts related to the above embodiments are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.
Claims (10)
1. An electromagnetic radiation measurement tool, comprising:
the detection device is used for detecting an electromagnetic radiation signal of the target equipment and converting the electromagnetic radiation signal into an initial signal voltage value, wherein the initial signal voltage value is used for representing the size of electromagnetic radiation corresponding to the electromagnetic radiation signal;
the main control device is connected with the output end of the detection device and is used for carrying out environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, and the target signal voltage value is used as an electromagnetic radiation measurement result of the target equipment.
2. The electromagnetic radiation measurement tool of claim 1, wherein the master control device comprises a CPLD circuit and a microcontroller connected to each other;
the CPLD circuit is used for detecting whether the signal state of the electromagnetic radiation signal is normal or not according to the initial signal voltage value;
and the microcontroller is used for carrying out environment interference correction processing on the initial signal voltage value under the condition that the signal state is normal, obtaining the target signal voltage value, and taking the target signal voltage value as the electromagnetic radiation measurement result.
3. The electromagnetic radiation measurement tool according to claim 2, wherein the input end of the CPLD circuit is provided with an or circuit, the output end of the detection device comprises a positive output end and a negative output end, and a receiving pin of the or circuit is connected with the positive output end and the negative output end respectively;
and the OR gate circuit is used for acquiring the initial signal voltage value from the positive electrode output end or the negative electrode output end.
4. The electromagnetic radiation measurement tool of claim 2, wherein the master control device further comprises:
and the clock buffer is connected with the CPLD circuit and used for providing a clock signal for the CPLD circuit.
5. The electromagnetic radiation measurement tool of claim 2, wherein the master control device further comprises:
and the power supply module is respectively connected with the CPLD circuit and the microcontroller and is used for supplying power to the CPLD circuit and the microcontroller.
6. The electromagnetic radiation measurement tool of claim 1, further comprising:
and the alarm device is connected with the main control device and is used for outputting alarm information under the condition that the main control device is abnormal.
7. The electromagnetic radiation measurement tool of claim 1, further comprising:
and the display device is connected with the main control device and is used for converting the voltage value of the target signal into a frequency spectrum waveform and visually displaying the frequency spectrum waveform.
8. An electromagnetic radiation measurement method for use in an electromagnetic radiation measurement tool according to any one of claims 1 to 7, the method comprising:
detecting an electromagnetic radiation signal of a target device, and converting the electromagnetic radiation signal into an initial signal voltage value, wherein the initial signal voltage value is used for representing the magnitude of electromagnetic radiation corresponding to the electromagnetic radiation signal;
And performing environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value, and taking the target signal voltage value as an electromagnetic radiation measurement result of the target equipment.
9. The method of claim 8, wherein the method further comprises:
detecting whether the signal state of the electromagnetic radiation signal is normal or not according to the initial signal voltage value;
the performing the environmental interference correction processing on the initial signal voltage value to obtain a target signal voltage value includes:
and if the signal state is normal, performing environment interference correction processing on the initial signal voltage value to obtain a target signal voltage value.
10. The method of claim 8, wherein performing the ambient interference correction process on the initial signal voltage value to obtain a target signal voltage value comprises:
and acquiring an environment interference correction value, and correcting the initial signal voltage value by using the environment interference correction value to obtain the target signal voltage value, wherein the environment interference correction value is used for representing electromagnetic radiation measurement errors in the current measurement environment and the darkroom measurement environment.
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