Cabin electromagnetic environment monitoring system and vehicle having same

Abstract

The present application relates to the technical field of electromagnetic environment monitoring, and specifically provides a cabin electromagnetic environment monitoring system and a vehicle having same. The cabin electromagnetic environment monitoring system comprises: an electromagnetic monitoring device, the electromagnetic monitoring device being arranged in a passenger compartment; a receiver module; a remote monitoring system, the remote monitoring system being in communication with both the receiver module and the electromagnetic monitoring device, the remote monitoring system at least comprising a signal analysis device, and the signal analysis device being used for, on the basis of measured parameters of the electromagnetic monitoring device and a first waveband signal, determining whether electromagnetic field parameters in at least one target space exceed threshold values and generating monitoring data; and a frequency source module, the frequency source module being used for generating a specific frequency signal as a reference signal on the basis of a second waveband signal, so as to help the signal analysis device to identify and measure a signal frequency and signal intensity in the target space. The present application solves the technical problem in the prior art of incapability of monitoring electromagnetic environments in cabins in real time.

Description

Cabin electromagnetic environment monitoring system and vehicle with same TECHNICAL FIELD

[0001] The present application relates to the technical field of electromagnetic environment monitoring, in particular to a cabin electromagnetic environment monitoring system and a vehicle with the same. The present application claims priority to the patent application with the application number 202410843970.1, the title of "Cabin electromagnetic environment monitoring system and vehicle with same", which was filed with the State Intellectual Property Office of China on June 27, 2024. BACKGROUND

[0002] In recent years, with the rapid development of the economic society, the application of high-frequency electronic technology is becoming more and more widespread, and the use rate of electromagnetic equipment is also increasing. At present, the electromagnetic environment is usually monitored by using a comprehensive field strength analyzer or by connecting an antenna (or a probe) to a spectrum analyzer (or other spectrum measurement device). The existing technology also adds a computer to control the monitoring system, aiming to realize automatic monitoring and data processing. However, the above-mentioned various electromagnetic environment monitoring products can usually only realize the measurement of the electromagnetic field amplitude. The improvement of the products is mainly to realize automatic monitoring and data processing. For example, the electromagnetic environment monitoring system proposed in the document "Software Development and Implementation of Automatic Electromagnetic Environment Monitoring System" (authors: Wang Yue, Liu Qi, etc.) is composed of a lifting rod, a test antenna, a signal analyzer, a radio frequency receiving module, a pan-tilt head, a power module, a controller, a computer, a radio frequency cable, and a communication cable. Through the computer, the antenna pan-tilt head, the radio frequency receiving module, and the signal analyzer are controlled to realize the measurement of the electromagnetic environment in different bandwidths, different time periods, different directions, and different polarizations. The measurement data is frequency spectrum data and non-electromagnetic environment data.

[0003] At present, the electromagnetic environment of the passenger car cabin needs to be periodically inspected and debugged by humans. Due to the existence of the gap period of periodic inspection, when the operating state of such electromagnetic environment monitoring equipment is abnormal during the gap period, it will directly cause the interruption of the monitoring data of the electromagnetic environment. Finally, according to the different application scenarios of the electromagnetic environment monitoring equipment, different degrees of loss will be caused. SUMMARY

[0004] The main purpose of the present application is to provide a cabin electromagnetic environment monitoring system and a vehicle with the same, in order to solve the technical problem that the existing technology cannot monitor the electromagnetic environment in the cabin in real time.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a cockpit electromagnetic environment monitoring system is provided, comprising: an electromagnetic monitoring device, the electromagnetic monitoring device is arranged in a passenger cabin, and is used for measuring electric field intensity and magnetic field intensity of at least one target space in the passenger cabin; a receiver module, the receiver module is used for receiving radio frequency signals emitted by a target device, and the receiver module comprises a splitter, the splitter is used for dividing the radio frequency signals into first wave band signals and second wave band signals according to different transmission paths; a remote monitoring system, the remote monitoring system communicates with the receiver module and the electromagnetic monitoring device, and at least comprises a signal analysis device, the signal analysis device is used for determining whether electromagnetic field parameters in the at least one target space exceed a threshold value according to a measurement parameter of the electromagnetic monitoring device and the first wave band signals, and generating monitoring data; a frequency source module, the frequency source module is used for generating a specific frequency signal as a reference signal according to the second wave band signals, so as to help the signal analysis device to identify and measure signal frequency and signal intensity in the target space; further, the signal analysis device is a spectrum analyzer; the spectrum analyzer is used for calibrating the spectrum analyzer according to the reference signal, and is used for comparing the reference signal with the first wave band signals, so as to identify and measure the signal frequency and the signal intensity in the target space.

[0006] Further, the frequency source module comprises an oscillation circuit composed of a crystal oscillator, and the oscillation circuit is used for generating a specific frequency signal as a reference signal according to the second wave band signals.

[0007] Further, the cockpit electromagnetic environment monitoring system further comprises: an omnidirectional antenna, the omnidirectional antenna is electrically connected with the splitter through a cable, and the omnidirectional antenna receives the radio frequency signals.

[0008] Further, the cockpit electromagnetic environment monitoring system further comprises a data cleaning system, the data cleaning system is used for monitoring abnormal values, data interpolation and data feature extraction of the monitoring data.

[0009] Further, the cockpit electromagnetic environment monitoring system further comprises a data visualization system, the data visualization system is used for converting the monitoring data into a visual format for visual display, and the visual format at least comprises one of a chart, a map and a three-dimensional model.

[0010] Further, the target device comprises at least one of a vehicle-mounted electronic device, an external communication base station, a satellite communication system, a vehicle networking system and a radio broadcast device.

[0011] Further, the cockpit electromagnetic environment monitoring system further comprises a result interpretation system, the result interpretation system is used for performing data analysis on the monitoring data, generating a corresponding electromagnetic environment change trend signal according to an analysis result, and matching a corresponding electromagnetic control strategy in a preset database according to the electromagnetic environment change trend signal.

[0012] According to another aspect of the present application, a vehicle is provided, the vehicle comprising a cabin electromagnetic environment monitoring system, the cabin electromagnetic environment monitoring system being the cabin electromagnetic environment monitoring system described above.

[0013] By applying the technical solution of the present application, the radio frequency signal is divided into a first wave band signal and a second wave band signal by setting a shunt, and a specific frequency signal is generated as a reference signal by using a frequency source module according to the second wave band signal, so as to help the signal analysis device to identify and measure the signal frequency and signal strength in the target space, so that the system can dynamically adjust the output frequency according to the needs by the frequency source module, and then quickly respond to the environmental changes, while supporting real-time monitoring and analysis, facilitating the combination with the automatic test platform, and realizing intelligent real-time monitoring and management of the electromagnetic environment. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. The accompanying drawings should not be construed in a limiting manner as the present application is not limited by the accompanying drawings.

[0015] FIG. 1 shows a structural schematic diagram of an embodiment of a cabin electromagnetic environment monitoring system according to the present application. DETAILED DESCRIPTION

[0016] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0017] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms “comprise” and / or “include” are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0018] It is to be understood that the terms "first", "second", and the like, used in the description and the claims of the present application as well as the preceding drawings do not by their conclusion imply any kind of preferences or ordinal sequence but are merely used to distinguish different categories of similar objects. It is to be understood that the terms so used are interchangeable under appropriate circumstances and embodiments of the application described herein are capable of operating in other sequences than the one explicitly described or indicated as the preferred or advantageous one, unless otherwise indicated. Furthermore, the terms "comprise", "comprising", "have", "having", "include", "including" and the like, are to be construed in a non- limiting manner as encompassing the stated features, integers, steps or components as well as those equivalent thereto that are specifically mentioned in the claims, abiding by the ordinary and preferred meaning of such terms.

[0019] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in various different forms and should not be construed as being limited to only the ones set forth in the present disclosure. It is understood that the embodiments are to cover all modifications within the scope and the sprit of the application, and the concepts of the exemplary embodiments are to be construed that they adequately convey the essential characteristics of the embodiments to a person skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same reference numerals are used to designate the same elements throughout the specification. Thus, the description of the same elements will be omitted hereinafter.

[0020] The passenger compartment (also referred to as the cockpit or the interior of the vehicle cabin) of a passenger vehicle is a space within the vehicle interior that provides a place for the driver and passengers to sit.

[0021] In conjunction with FIG. 1, according to specific embodiments of the present application, a passenger compartment electromagnetic environment monitoring system is provided, comprising: an electromagnetic monitoring device, the electromagnetic monitoring device is arranged in the passenger compartment, and is configured to measure the electric field intensity and the magnetic field intensity of at least one target space in the passenger compartment; a receiver module, the receiver module is configured to receive radio frequency signals emitted by a target device, and the receiver module comprises a splitter, the splitter is configured to divide the radio frequency signals into first waveband signals and second waveband signals according to different transmission paths; a remote monitoring system, the remote monitoring system is in communication with the receiver module and the electromagnetic monitoring device, and the remote monitoring system at least comprises a signal analysis device, the signal analysis device is configured to determine whether the electromagnetic field parameters in the at least one target space exceed a threshold value according to the measurement parameters of the electromagnetic monitoring device and the first waveband signals, and to generate monitoring data; and a frequency source module, the frequency source module is configured to generate a specific frequency signal as a reference signal according to the second waveband signals, so as to help the signal analysis device identify and measure the signal frequency and signal intensity in the target space.

[0022] The technical scheme of the application is applied, the radio frequency signal is divided into the first wave band signal and the second wave band signal through the shunt, the frequency source module generates the specific frequency signal as the reference signal according to the second wave band signal, the signal analysis device is helped to identify and measure the signal frequency and the signal strength in the target space, the system can dynamically adjust the output frequency according to the needs through the frequency source module, and then the system can quickly respond to the environmental changes, supports real-time monitoring and analysis, is convenient to combine with the automatic test platform, and realizes intelligent real-time monitoring and management of the electromagnetic environment.

[0023] The signal analysis device is used for determining whether electromagnetic field pollution exists in at least one target space according to the measurement parameter of the electromagnetic monitoring device and the first wave band signal, and generating monitoring data, the monitoring data including electric field data and magnetic field data, so as to evaluate the electromagnetic environment in the cabin.

[0024] Optionally, the evaluation of the electromagnetic environment in the cabin includes EMC electromagnetic compatibility evaluation, electromagnetic interference evaluation, and safety evaluation of electromagnetic radiation on the environment and human health.

[0025] Optionally, the receiver is used for capturing and measuring signals in the electromagnetic environment, which can detect the level, frequency and other indicators of electromagnetic noise and radio signals, is used for monitoring the electromagnetic environment in the cabin, ensuring that the requirements of relevant regulations of radio and environmental protection are met, and monitoring the electromagnetic radiation pollution source in the cabin, helping to identify and evaluate potential electromagnetic interference sources.

[0026] Optionally, the receiver is built-in with filters and preamplifiers to meet specific requirements of electromagnetic environment tests, and the receiver can also be used for wideband reception to monitor a wider frequency range. The processing flow of the receiver to the radio frequency signal is generally as follows: S1, signal amplification: since the received signal can be very weak, it may need to be amplified through a low noise amplifier (LNA). S2, filtering: use filters to remove unwanted frequency components and other noise to extract the signal of interest. S3, frequency conversion: convert the received radio frequency signal to intermediate frequency (IF) or baseband through frequency synthesizer or mixer for further processing. S4, analog-to-digital conversion: convert the analog signal to digital signal for analysis using digital signal processing technology. S5, digital signal processing: use digital signal processing (DSP) technology to demodulate, decode and data analysis of the signal. Digital signal processing may include: 1, demodulation: according to the modulation mode of the signal (such as AM, FM, PM or digital modulation), the modulation information on the carrier signal is demodulated. 2, decoding: for digital signals, decoding is performed to recover the original data. Spectrum analysis: analyze the spectral characteristics of the signal to determine the frequency components of the signal. 3, signal identification: identify the characteristics of the signal, such as modulation type, signal source, etc. 4, data analysis: analyze the processed data to evaluate the quality, intensity, stability and other parameters of the signal.

[0027] Optionally, the type of monitoring data can be determined according to the needs of the test personnel, which can include: 1. The frequency or frequency range of electromagnetic signals, which is the basis for identifying different electromagnetic sources and signals. 2. Field strength measurement: including the measurement of electric field strength and magnetic field strength, usually in units of volts per meter (V / m) or tesla (T). 3. Power density: the power density of electromagnetic radiation, usually in units of watts per square meter (W / m²), used to assess the strength of electromagnetic radiation. 4. Time variation: recording the variation of electromagnetic field over time, which can be instantaneous value, average value or time series data. 5. Spatial distribution: the distribution of electromagnetic field in different geographical locations, which may include point data or spatial grid data on the map. 6. Signal type: distinguishing between continuous wave signals and pulse signals, as well as the modulation type of the signal, etc. 7. Signal quality: parameters such as signal-to-noise ratio (SNR), error vector magnitude (EVM), etc., used to evaluate the quality of the signal. 8. Spectrum characteristics: including the spectral distribution of the signal, the occupied bandwidth, the adjacent channel power ratio, etc. 9. Directional information: for signals monitored by directional antennas, the directional information of the signal is recorded for signal source positioning. 10. Environmental parameters: may include temperature, humidity, atmospheric pressure and other environmental factors that may affect the propagation of electromagnetic waves. 11. Device parameters: the status and parameter settings of the monitoring device, such as antenna type, gain, polarization mode, etc. 12. Time stamp: the time stamp of each measurement data point, used to record the precise time of data acquisition. 13. Location information: the geographic coordinates of the monitoring point, such as latitude and longitude information, used for geographic information system (GIS) analysis.

[0028] Further, the signal analysis device is a spectrum analyzer.

[0029] Further, the spectrum analyzer is used to calibrate the spectrum analyzer according to the reference signal, and to compare the reference signal with the first waveband signal to identify and measure the signal frequency and signal strength in the target space.

[0030] Further, the frequency source module includes an oscillator circuit composed of a crystal oscillator, which is used to generate a specific frequency signal as a reference signal according to the second waveband signal.

[0031] The basic principle of crystal oscillator:

[0032] Crystal oscillator utilizes the piezoelectric effect of quartz crystal to generate a stable oscillation frequency. When the crystal is excited by voltage, it will vibrate at a specific frequency, and these vibrations will in turn produce a corresponding voltage signal, forming an oscillation.

[0033] The components of an oscillator circuit are as follows: 1. Crystal unit: as the core of the oscillator source, the quartz crystal unit acts as a resonator in the circuit. 2. Amplifier: used to enhance the weak oscillation signal generated by the crystal unit. 3. Feedback network: usually includes elements such as resistance, capacitance and inductance, used to feedback the amplified signal to the crystal unit to maintain oscillation. 4. Frequency stabilization circuit: used to adjust and stabilize the oscillation frequency to ensure the stability of the signal. 5. Power supply: provides the required DC power for the oscillator circuit. 6. Output buffer: buffers and amplifies the oscillation signal to provide a stable reference signal to external devices.

[0034] The working process of generating a specific frequency using an oscillator circuit is as follows:

[0035] S10, power supply: the oscillator circuit is powered by the power supply and starts working.

[0036] S20, crystal excitation: the amplifier excites the crystal unit to generate an initial oscillation signal.

[0037] S30, signal amplification: the amplifier amplifies the oscillation signal generated by the crystal unit.

[0038] S40, feedback adjustment: the amplified signal is fed back to the crystal unit through the feedback network to form positive feedback and maintain oscillation.

[0039] S50, frequency stabilization: the frequency stabilization circuit fine-tunes the oscillation frequency to ensure the accuracy and stability of the frequency.

[0040] S60, output signal: the output buffer outputs the stable oscillation signal to the subsequent circuit or device.

[0041] S70, generate a specific frequency signal:

[0042] The oscillation frequency of the crystal oscillator is mainly determined by the physical properties of the crystal, and different frequencies can be obtained by selecting different types of crystals. In the design of the oscillator circuit, the frequency can be fine-tuned by adjusting the capacitance, inductance and other elements in the circuit, or using temperature-compensated crystal oscillator (TCXO) or voltage-controlled crystal oscillator (VCXO) technology to achieve more accurate frequency control.

[0043] The stable reference signal generated by the frequency source module can be used to: calibrate frequency devices (such as spectrum analyzers) to ensure the frequency accuracy of electromagnetic monitoring devices, and as a frequency reference in spectrum analyzers and other devices as a reference signal for frequency measurement and analysis.

[0044] The generation of specific frequency signals by the frequency source module can have the following uses: 1. Occurrence and simulation: the frequency source module can generate signals of specific frequencies, which can be used to simulate the signals that may be encountered in the actual electromagnetic environment, to test the response and anti-interference ability of the equipment in the cabin to specific frequency signals. 2. Spectrum analysis: when performing spectrum analysis, the frequency source module can provide reference signals to help analyze and identify the signal components and their frequency characteristics in the electromagnetic environment in the cabin. 3. Electromagnetic compatibility test: the frequency source module is used to generate test signals to evaluate the electromagnetic compatibility of electronic devices in the cabin at specific frequencies, to ensure that they work normally in the electromagnetic environment without causing or being disturbed. 4. Interference source positioning: in the detection of electromagnetic environment in the cabin, the frequency source module can help identify and locate the interference source by simulating the interference signal to track its source. 5. Electromagnetic environment quality evaluation: the frequency source module can provide signals for evaluating the quality of the electromagnetic environment in the cabin, which can be used to construct a location-based frequency intensity curve reflecting the changes of electromagnetic radiation in different frequency ranges. 6. Wireless communication test: in the test of wireless communication system, the frequency source module is used to simulate the signals of base stations and communication devices in the cabin to test the communication performance of mobile devices at different frequencies. 7. Electromagnetic radiation exposure evaluation: the frequency source module can be used to simulate electromagnetic radiation of different frequencies to evaluate the exposure level of human body or animals at specific frequencies in the cabin. 8. Calibration of electromagnetic environment monitoring system: the frequency source module can also be used to calibrate the electromagnetic environment monitoring system in the cabin to ensure the accuracy and reliability of the monitoring equipment.

[0045] By setting the frequency source module, very stable and accurate frequency signals can be provided, which is essential for accurate measurement and analysis of signals in the electromagnetic environment, and the output frequency can be dynamically adjusted as needed, which enables the monitoring system to quickly respond to environmental changes, covering a wide frequency range from low frequency to high frequency, so that the electromagnetic environment detection can monitor signals in multiple frequency bands at the same time. Further, the frequency source module can be combined with an automated test platform to realize intelligent electromagnetic environment monitoring and management, support real-time monitoring and analysis, and quickly respond to dynamic changes in the electromagnetic environment to provide real-time data support for electromagnetic spectrum management.

[0046] In complex electromagnetic environment, the frequency source mode can provide stable reference signal to help the monitoring system accurately identify and analyze various electromagnetic interference and signals, and a variety of frequency synthesis techniques can be integrated: the frequency source module can comprehensively use direct analog frequency synthesis, phase-locked frequency synthesis and direct digital frequency synthesis and other technologies to achieve the best performance indicators.

[0047] Optionally, the reference signal can also be used as a synchronization signal source to provide synchronization signals for multiple devices in a complex electromagnetic monitoring system.

[0048] In an optional embodiment, the frequency source module is typically composed of the following parts:

[0049] Crystal Oscillator: The crystal oscillator is one of the core components of the frequency source module, which uses the piezoelectric effect to generate a stable frequency signal. Crystal oscillators can provide very stable and accurate frequencies and are the basis of the frequency source module.

[0050] Voltage-Controlled Oscillator (VCO): VCO is an oscillator that can change frequency according to the input voltage change. In the frequency source module, VCO allows dynamic adjustment of the output frequency.

[0051] Frequency Synthesizer: Frequency synthesizer is an electronic device that can generate multiple different frequency signals, or from a reference frequency to generate a stable output frequency. It usually combines frequency divider, phase-locked loop (PLL) and other technologies.

[0052] Phase-Locked Loop (PLL): PLL is a feedback control system that can lock the phase of an oscillation signal to track a reference signal. In the frequency source module, PLL is used to stabilize and adjust the output frequency.

[0053] Frequency divider: Frequency divider is a circuit that can reduce the frequency, which can divide the frequency of the input signal by an integer to get a lower frequency output.

[0054] Amplifier and buffer: To ensure the strength and stability of the signal, the frequency source module may contain amplifiers and buffers for signal amplification and isolation.

[0055] Filter: Filter is used to remove unwanted frequency components to ensure the purity of the output signal.

[0056] Microcontroller or Digital Signal Processor (DSP): In some modern frequency source modules, microcontrollers or DSPs are used to control and adjust various parameters of the frequency synthesizer, realizing complex frequency control functions.

[0057] Interface circuit: The frequency source module may contain various interface circuits for communication with other systems or devices, such as serial communication interface (SPI), universal asynchronous receiver / transmitter (UART), etc.

[0058] The reference signal working principle and process of the frequency source module usually involves the following steps:

[0059] Step S11, Frequency Source Setup: First, the frequency source module needs to be set up to generate a signal at a specific frequency. This can be achieved through technologies such as direct digital frequency synthesizers (DDS), phase-locked loops (PLL), or crystal oscillators.

[0060] Step S21, Signal Generation: The frequency source module generates a stable reference signal based on the second waveband signal, which has known frequency and amplitude characteristics.

[0061] Step S31, Signal Transmission: The generated reference signal is transmitted to the spectrum analyzer or other measurement equipment through appropriate transmission media such as cables or waveguides.

[0062] Step S41, Spectrum Analyzer Calibration: Using the reference signal provided by the frequency source, the spectrum analyzer is calibrated to ensure the accuracy of the measurements. The calibration process may include adjusting the frequency and amplitude scales.

[0063] Step S51, Signal Measurement: The spectrum analyzer receives the reference signal from the frequency source and compares it with the captured signal (i.e., the first waveband signal) in the environment to identify and measure the frequency and strength of the signals.

[0064] Step S61, Data Analysis: Analyze the differences between the reference signal and the measured signal to determine the characteristics of the signals in the environment, such as frequency deviation, amplitude error, and signal quality.

[0065] Step S71, Interference Identification: If there is interference in the environment, the frequency source mode can help identify the frequency of the interference source and assess its potential impact on the communication system.

[0066] Step S81, System Adjustment: Based on the measurement results, adjust system parameters such as filter settings, gain control, etc. to optimize signal reception and interference suppression.

[0067] Step S91, Report Generation: Finally, generate a detailed test report recording measurement data, analysis results, and any necessary adjustment recommendations.

[0068] Step S101, Automated Control: The frequency source and spectrum analyzer can be controlled by software to implement an automated testing process.

[0069] The role of the frequency source mode in electromagnetic environment detection is to provide an accurate reference signal to help the spectrum analyzer accurately identify and measure signals in the environment, which is beneficial to ensure the stability of the communication system, evaluate electromagnetic compatibility, and monitor changes in the electromagnetic environment.

[0070] Further, the cabin electromagnetic environment monitoring system further comprises: an omnidirectional antenna, the omnidirectional antenna being connected with the splitter through a cable, and the omnidirectional antenna receiving the radio frequency signal.

[0071] As shown in Figure 1, the application provides a passenger car cabin electromagnetic environment real-time monitoring system, relates to the technical field of electromagnetic environment monitoring, and monitors equipment selection, electromagnetic field instruments, radiometers, receiver modules, frequency source modules, omnidirectional antennas, remote monitoring monitoring systems, area measurement systems, data cleaning systems, data visualization systems, data statistics, and result interpretation systems. Through the frequency source module, a stable oscillation power is used to generate a periodic signal of a specific frequency. The oscillation circuit is composed of a crystal oscillator. The crystal oscillator uses the piezoelectric effect of a crystal to generate a stable oscillation frequency, has high stability and frequency accuracy, and the remote monitoring monitoring system uses real-time monitoring equipment to continuously and real-time monitor electromagnetic pollution. Changes in electromagnetic pollution can be monitored in real time. It is important to find electromagnetic pollution and geomagnetic pollution sources in real time.

[0072] As shown in Figure 1, the monitoring equipment selection includes selecting different monitoring equipment for real-time monitoring according to different electromagnetic environment factors;

[0073] The electromagnetic field instrument is used to measure the intensity and frequency of the electromagnetic field. Different monitoring equipment can be selected for real-time monitoring according to different electromagnetic environment factors;

[0074] The radiometer is used to measure the intensity and frequency of electromagnetic radiation. At the same time, the radiometer is divided into indoor and outdoor radiometers. According to different situations, it can be used to effectively avoid the deviation caused by external factors;

[0075] The receiver module can receive radio frequency signals and convert them into images for users to observe intuitively;

[0076] The frequency source module is used to generate a periodic signal of a specific frequency using stable oscillation power;

[0077] After the omnidirectional antenna receives the radio frequency signal, it is connected to the shunt module of the receiver through the cable. The shunt module divides the radio frequency signal into two paths of first wave band signal and second wave band signal for output;

[0078] The remote monitoring monitoring system uses real-time monitoring equipment to continuously and real-time monitor electromagnetic pollution;

[0079] The area measurement system uniformly arranges monitoring points in a certain range to monitor electromagnetic pollution and determine the electromagnetic pollution situation of the entire area, so as to upload data in the first time;

[0080] The data cleaning system cleans the data after monitoring, removes invalid or incorrect data, facilitates observation in the first time, and records the invalid data to avoid invalid data transmission to the equipment next time;

[0081] The data visualization system converts the monitored data into icons or text tables by using a data visualization device;

[0082] The data statistics are used for statistics according to the monitored data, while analyzing, calculating the average value, maximum value and minimum value;

[0083] The result interpretation system is used for evaluating and explaining the pollution of electromagnetic environment according to the analysis result of data.

[0084] Specifically, in the present application, the frequency source module generates a periodic signal of a specific frequency by using a stable oscillation power, and the oscillation circuit is composed of a crystal oscillator, which generates a stable oscillation frequency by using the piezoelectric effect of a crystal, and has high stability and frequency accuracy.

[0085] Specifically, in the present application, after the omnidirectional antenna receives the radio frequency signal, the shunt module of the receiver is accessed through the cable, the shunt module divides the radio frequency signal into two paths of first wave band signal and second wave band signal for output, the first wave band signal is output to the receiver module, and the second wave band signal is output to the frequency source module, which increases the accuracy of reception and converts the data into images for intuitive observation by the user.

[0086] Specifically, in the present application, the remote monitoring and monitoring system uses real-time monitoring equipment to continuously and real-time monitor the electromagnetic pollution, which can monitor the change of electromagnetic pollution in real time, and has important real-time transmission for finding the source of electromagnetic pollution and geomagnetic pollution.

[0087] Specifically, in the present application, the data cleaning system cleans the data after monitoring, removes invalid or incorrect data, and facilitates observation at the first time, and the invalid data will be recorded to avoid invalid data transmission to the equipment next time.

[0088] Specifically, in the present application, the data visualization system converts the monitored data into icons or text tables by using a data visualization device, which facilitates data analysis and result display, and facilitates the user to observe at the first time.

[0089] Specifically, in the present application, the data statistics are used for statistics according to the monitored data, while analyzing, calculating the average value, maximum value and minimum value, and then comparing the existing data to compare the change of electromagnetic environment, which facilitates taking measures at the first time.

[0090] Specifically, in the present application, the result interpretation system evaluates and explains the pollution of electromagnetic environment according to the analysis result of data, and proposes corresponding suggestions and measures, which facilitates the user to respond at the first time and avoids deviation.

[0091] Further, the cabin electromagnetic environment monitoring system further comprises a data cleaning system, the data cleaning system being configured to perform outlier detection, data interpolation and data feature extraction on the monitoring data.

[0092] The data cleaning system is a set of techniques and methods for processing and purifying collected electromagnetic monitoring data. The purpose of data cleaning is to improve data quality and ensure the accuracy and reliability of analysis results.

[0093] Optionally, the workflow of the data cleaning system includes the following steps:

[0094] Step S100, data preprocessing: preliminary processing of raw data, including denoising, normalization, etc., to reduce outliers and noise in the data.

[0095] Step S200, outlier detection: identify outliers or outliers in the data, which may be caused by equipment failure, measurement error or external interference.

[0096] Step S300, data interpolation: for missing or abnormal data points, use statistical methods or machine learning algorithms for data interpolation to restore the integrity of the data.

[0097] Step S400, data smoothing: reduce random fluctuations in the data through smoothing techniques while preserving the main features of the data.

[0098] Step S500, feature extraction: extract useful features from raw data for further analysis and processing.

[0099] The data cleaning system can include the following components:

[0100] 1. Data collection module: responsible for collecting raw data from various electromagnetic monitoring devices. 2. Data preprocessing module: performs preliminary processing of data such as denoising, normalization, etc. 3. Outlier detection module: uses statistical tests or machine learning algorithms to identify outliers. 4. Data interpolation module: estimates and interpolates missing data. 5. Data smoothing module: applies smoothing algorithms to reduce data fluctuations. 6. Feature extraction module: extracts key features from cleaned data. 7. Data storage module: stores cleaned data in a database or other storage system for subsequent analysis. 8. User interface: provides an operating interface that allows users to monitor the cleaning process, adjust parameters, and access cleaned data.

[0101] By setting up a data cleaning system, the following technical effects are achieved: 1. By removing noise and outliers, the accuracy and reliability of the data are improved. 2. Imputing missing data ensures the integrity of the data set. 3. Ensuring internal consistency of the data set facilitates effective data analysis. 4. Helps to discover key features and patterns in monitoring data, providing support for further data analysis.

[0102] Further, the cockpit electromagnetic environment monitoring system further comprises a data visualization system, the data visualization system is used for converting the monitoring data into a visual format for visual display, and the visual format at least includes one of a chart, a map, and a three-dimensional model.

[0103] The data visualization system is a tool that converts complex electromagnetic monitoring data into graphical or image representations for analysis and understanding.

[0104] The principle of the data visualization system is as follows: 1. Data conversion: convert the original electromagnetic monitoring data into a visual format, such as charts, maps, and three-dimensional models. 2. Visual encoding: use visual elements such as color, shape, and size to encode data to express different data attributes and values. 3. Interactive design: design interactive elements to allow users to explore data by manipulating visual results, such as zooming, panning, and filtering. 4. Multidimensional data display: display multidimensional data in two or three dimensions through dimensionality reduction techniques or multi-view methods. Data input module: receives raw data from electromagnetic monitoring devices.

[0105] The data visualization system usually includes: 1. Data processing module: cleans, integrates, and converts data to prepare for visualization. 2. Visualization engine: core component, responsible for converting processed data into graphical representations. 3. User interface (UI): provides a user interface for user interaction, allowing users to manipulate and view visualization results. 4. Interactive control module: allows users to interact with visualization data through the interface, such as selection, filtering, and sorting. 5. Data output module: supports exporting visualization results as images or other formats for reporting or further analysis. 6. Database management system: stores and manages monitoring data for visualization system calls.

[0106] By setting up a data visualization system, complex electromagnetic monitoring data is presented in a graphical manner, enhancing data readability, helping users identify patterns, trends, and anomalies in the data, and providing intuitive data support for decision-makers to aid in making data-based decisions.

[0107] Further, the target device includes at least one of a vehicle-mounted electronic device, an external communication base station, a satellite communication system, a vehicle-to-everything system, and a radio broadcast device. Vehicle-mounted electronic device: Modern passenger vehicles are equipped with many electronic devices, such as navigation systems, in-vehicle infotainment systems, automatic cruise control systems, etc. External communication base station: When a vehicle exchanges data with an external communication base station through a cellular network (such as 4G / LTE), it will receive and transmit radio frequency signals. Satellite communication system: If a vehicle is equipped with a satellite navigation system (such as GPS, GLONASS, Galileo, etc.), it will receive radio frequency signals from satellites. Vehicle-to-everything (V2X) system: Vehicles may participate in vehicle-to-everything communication, communicating with other vehicles (V2V), infrastructure (V2I), or pedestrians (V2P), which will use radio frequency signals. Radio broadcast: The radio of a vehicle can receive radio frequency signals from a radio broadcast station.

[0108] Further, the cockpit electromagnetic environment monitoring system further comprises a result interpretation system, the result interpretation system is used for data analysis on the monitoring data, and generates a corresponding electromagnetic environment change trend signal according to the analysis result, and matches a corresponding electromagnetic control strategy in a preset database according to the electromagnetic environment change trend signal.

[0109] The above-mentioned embodiments can also be used in the field of vehicle technology, that is, according to another specific embodiment of the present application, a vehicle is provided, the vehicle comprises a cockpit electromagnetic environment monitoring system, the cockpit electromagnetic environment monitoring system is the cockpit electromagnetic environment monitoring system in the above-mentioned embodiments.

[0110] In an optional embodiment, the electromagnetic monitoring device comprises at least one of an electromagnetic field instrument and a radiometer. In the field of electromagnetic monitoring, electromagnetic field instruments mainly include the following types, each with its specific monitoring purpose:

[0111] In the field of electromagnetic monitoring of passenger vehicles, electromagnetic field instruments mainly include the following types, and their monitoring purposes are as follows:

[0112] Vehicle electromagnetic field exposure test system: This system is used to measure the electromagnetic field intensity inside the vehicle to evaluate the impact of electromagnetic fields on human exposure. It usually includes a multi-probe distributed synchronous monitoring device that can measure, evaluate and perform spectral analysis on low-frequency magnetic fields.

[0113] Vehicle-mounted transmitter simulation method test equipment: In the electromagnetic immunity performance test of intelligent connected vehicles, the vehicle-mounted transmitter simulation method is used to test the immunity of the vehicle. The test equipment requires test equipment to activate the functions of the whole vehicle, such as a radar target simulator, which is used to simulate a relative motion target vehicle.

[0114] Electromagnetic radiation monitors: These instruments are used to monitor power frequency electromagnetic fields and radio frequency electromagnetic fields, and can accurately and quickly measure various complex electromagnetic environments, suitable for measurements from low frequency to millimeter wave frequency band.

[0115] Automatic monitoring systems: Automatic monitoring systems are usually composed of frequency-selective electromagnetic radiation automatic continuous monitoring instruments, data acquisition equipment, data transmission equipment, data storage equipment, power systems and automatic monitoring data management software. They are used for automatic continuous monitoring of electromagnetic radiation environment of DC power transmission projects, AC power transmission and transformation projects, radio and television transmitting stations and mobile communication base stations, etc.

[0116] Magnetic and electric instruments: These instruments are used to measure the changes of geomagnetic field and earth resistivity, and are usually used in the study of seismic electromagnetism to monitor the earth electric field, geomagnetic field, earth resistivity and seismic electromagnetic disturbance, etc.

[0117] Electromagnetic wave instruments: Used for the observation of seismic electromagnetic disturbance, especially for the short-term prediction of earthquakes.

[0118] Magnetotelluric sounding instruments: Used for detecting the resistivity of the earth's medium, widely used in the monitoring of the environment background of earthquake preparation.

[0119] These instruments can monitor the electromagnetic environment in the passenger compartment of a passenger car, measuring parameters including electric field strength, magnetic field strength and electromagnetic field rate flux density, etc. Through the monitoring of these instruments, the electromagnetic radiation can be effectively managed and the safety of the passengers can be protected.

[0120] Electromagnetic radiation testers: Measure the electromagnetic radiation level inside the vehicle, usually in units of microtesla (µT). They can measure electromagnetic field strength in different frequency ranges to assess whether the electromagnetic environment of the vehicle under various working conditions meets safety standards, with three measurement modes of high-frequency electric field, low-frequency magnetic field and low-frequency electric field, used to measure electromagnetic radiation in different frequency ranges to ensure the safety of the electromagnetic environment inside the vehicle.

[0121] Spectrum analyzers and electromagnetic field instruments are two different types of equipment, each with unique functions and application ranges:

[0122] Spectrum analyzers: 1. Function: Spectrum analyzers are mainly used to measure and analyze the spectral characteristics of electromagnetic signals, such as frequency components, power distribution, etc. 2. Application: They are commonly used to identify and analyze sources of radio frequency interference, conduct radio monitoring, and analyze signal quality in wireless communication. 3. Characteristics: Spectrum analyzers usually have a wide frequency coverage, high resolution bandwidth (RBW), and fast scanning speed, which can capture and analyze transient signals and complex signals in real time.

[0123] Electromagnetic field instrument: 1. Function: Electromagnetic field instruments are used to measure the intensity of electromagnetic fields, including electric field intensity and magnetic field intensity. 2. Application: Such instruments are widely used in electromagnetic environment monitoring, such as assessing the impact of electromagnetic radiation on the human body, monitoring industrial electromagnetic fields, and electromagnetic compatibility (EMC) testing. 3. Characteristics: Electromagnetic field instruments may include various probes and sensors that can measure electromagnetic field levels within a specific frequency range and assess whether they meet safety standards.

[0124] For ease of description, spatial relative terms such as "over", "above", "upper surface", "upper", etc. can be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0125] In addition to the above, it should also be noted that "one embodiment", "another embodiment", "embodiment", and the like as discussed herein refer to a specific feature, structure, or characteristic described in connection with that embodiment includes at least one embodiment of the general description of the application. The same description appearing in several places in the specification does not necessarily refer to the same embodiment. Further, when a specific feature, structure, or characteristic is described in connection with any embodiment, it is intended that the implementation of such a feature, structure, or characteristic in connection with other embodiments is within the scope of the application.

[0126] In the above embodiments, the description of each embodiment is focused on, and the part not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0127] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cockpit electromagnetic environment monitoring system, characterized in that, include: An electromagnetic monitoring device is installed in the crew cabin and is used to measure the electric field strength and magnetic field strength of at least one target space in the crew cabin. A receiver module is used to receive radio frequency signals emitted by a target device. The receiver module includes a splitter, which is used to divide the radio frequency signals into a first band signal and a second band signal according to different transmission paths. A remote monitoring system, which communicates with the receiver module and the electromagnetic monitoring device, includes at least a signal analysis device. The signal analysis device is used to determine whether the electromagnetic field parameters in at least one of the target spaces exceed a threshold based on the measurement parameters of the electromagnetic monitoring device and the first band signal, and to generate monitoring data. A frequency source module is used to generate a specific frequency signal as a reference signal based on the second band signal, so as to help the signal analysis device identify and measure the signal frequency and signal strength in the target space. The signal analysis device is a spectrum analyzer; The spectrum analyzer is used to calibrate itself based on the reference signal and to compare the reference signal with the first band signal to identify and measure the signal frequency and signal strength in the target space.

2. The cockpit electromagnetic environment monitoring system according to claim 1, characterized in that, The frequency source module includes an oscillation circuit composed of a crystal oscillator, which is used to generate a specific frequency signal as the reference signal based on the second band signal.

3. The cockpit electromagnetic environment monitoring system according to claim 1, characterized in that, The cockpit electromagnetic environment monitoring system further includes an omnidirectional antenna, which is electrically connected to the splitter via a cable and receives the radio frequency signal.

4. The cockpit electromagnetic environment monitoring system according to claim 1, characterized in that, The cockpit electromagnetic environment monitoring system also includes a data cleaning system, which is used to perform outlier monitoring, data interpolation, and data feature extraction on the monitoring data.

5. The cockpit electromagnetic environment monitoring system according to claim 1, characterized in that, The cockpit electromagnetic environment monitoring system also includes a data visualization system, which is used to convert the monitoring data into a visualization format for visualization display. The visualization format includes at least one of charts, maps, and three-dimensional models.

6. The cockpit electromagnetic environment monitoring system according to claim 1, characterized in that, The target equipment includes at least one of the following: vehicle-mounted electronic equipment, external communication base station, satellite communication system, vehicle networking system, and radio broadcasting equipment.

7. The cockpit electromagnetic environment monitoring system according to claim 1, characterized in that, The cockpit electromagnetic environment monitoring system also includes a result interpretation system, which is used to perform data analysis on the monitoring data, generate corresponding electromagnetic environment change trend signals based on the analysis results, and match corresponding electromagnetic control strategies in a preset database based on the electromagnetic environment change trend signals.

8. A vehicle, said vehicle including a cabin electromagnetic environment monitoring system, characterized in that, The cockpit electromagnetic environment monitoring system is the cockpit electromagnetic environment monitoring system according to any one of claims 1 to 7.

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