An image transmission and control method based on dynamic EQ compensation and anti-nuclear radiation

Abstract

The application discloses an image transmission and control method and device based on dynamic EQ compensation and anti-nuclear radiation, and belongs to the field of data transmission. The application calculates a first loss coefficient for quantifying the influence of environmental nuclear radiation on the transmission performance of unshielded twisted pair, calculates a second loss coefficient for quantifying the comprehensive influence of all environmental factors and signal frequency on the transmission performance of unshielded twisted pair, and fuses the two coefficients. Then, based on the signal frequency of the target video signal and the fused loss coefficient, the cable attenuation coefficient of the unshielded twisted pair is calculated according to a preset composite attenuation model, the amplitude attenuation factor of the unshielded twisted pair is calculated according to a preset cable transmission function, and the target video signal transmitted through the unshielded twisted pair is compensated. The technical effects of dynamically adapting to a complex nuclear radiation environment, dynamically and accurately compensating signal attenuation, and significantly improving the transmission quality and stability of the unshielded twisted pair video signal are realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data transmission, in particular to an image transmission and control method and device based on dynamic EQ compensation and anti-nuclear radiation, and a storage medium. BACKGROUND

[0002] With the rapid development of information technology, video signal transmission plays a crucial role in many fields such as security monitoring, video conferencing, remote education, etc. Unshielded twisted pair (UTP) is widely used in video signal transmission as a low-cost, easy-to-install and maintain transmission medium. However, in actual application, UTP still faces some technical challenges in video signal transmission.

[0003] Firstly, signal attenuation is a major problem in transmitting video signals over UTP. Due to the inherent loss of conductors and media, video signals will gradually weaken during transmission. This attenuation will lead to a decrease in signal quality, resulting in image blurring, loss of detail, and even failure to correctly receive and decode the signal in severe cases. The degree of signal attenuation is influenced by various factors, including transmission distance, signal frequency, and cable quality. To address the problem of signal attenuation, some equalization compensation schemes have been developed. For example, patent application CN103139526A, entitled "System and method for cable equalization", receives video signals transmitted over a cable through an equalizer, provides compensation for frequency attenuation that occurs during transmission over the cable, and outputs the compensated video signals. Another example is patent application CN101667412A, entitled "Signal compensation device, signal compensation method and multi-computer switching system", which uses a combination of differential unit, detection unit, control unit, filter and equalizer in the signal compensation device to solve the problems of trailing and overexcitation caused by distance in signal transmission, and realizes accurate compensation of video signals and preservation of picture clarity.

[0004] It should be noted that nuclear radiation interference is also an important factor affecting the quality of video signal transmission over UTP. Common types of nuclear radiation include alpha rays, beta rays, gamma rays, neutron rays, and X-rays. These nuclear radiations can couple to UTP and interfere with video signals, resulting in signal quality degradation, noise, distortion, and other problems. The intensity and type of nuclear radiation interference depend on environmental factors, making signal transmission quality uncertain and volatile. However, existing equalization compensation schemes often fail to fully consider the impact of nuclear radiation interference, lacking a dynamic compensation mechanism for nuclear radiation interference.

[0005] The existing equalization compensation scheme for video signal transmission of unshielded twisted pair lacks a dynamic compensation mechanism for nuclear radiation interference, and a corresponding technical solution is urgently needed. SUMMARY

[0006] Embodiments of the present disclosure provide an image transmission and control method and device based on dynamic EQ compensation and anti-nuclear radiation, to at least solve the technical problem that the existing equalization compensation scheme for video signal transmission of unshielded twisted pair lacks a dynamic compensation mechanism for nuclear radiation interference.

[0007] According to one aspect of the embodiments of the present disclosure, an image transmission and control method based on dynamic EQ compensation and anti-nuclear radiation is provided, including: collecting intensity values of various types of nuclear radiation in an environment where an unshielded twisted pair is located, and determining a first conductor loss coefficient and a first dielectric loss coefficient of the unshielded twisted pair based on the intensity values of the various types of nuclear radiation; transmitting a target video signal with a first test pulse signal added through the unshielded twisted pair, and determining a second conductor loss coefficient and a second dielectric loss coefficient of the unshielded twisted pair according to the loss of the first test pulse signal in the target video signal after transmission; fusing the first conductor loss coefficient and the second conductor loss coefficient to obtain a third conductor loss coefficient; fusing and processing the first dielectric loss coefficient and the second dielectric loss coefficient to obtain a third dielectric loss coefficient; determining a cable attenuation coefficient of the unshielded twisted pair according to a preset composite attenuation model based on a signal frequency of the target video signal, the third conductor loss coefficient and the third dielectric loss coefficient; and calculating an amplitude attenuation factor of the unshielded twisted pair according to a preset cable transmission function based on the cable attenuation coefficient, and performing equalization compensation on the target video signal after transmission through the unshielded twisted pair based on the amplitude attenuation factor.

[0008] According to another aspect of the embodiments of the present disclosure, a storage medium is also provided, which includes a stored program, wherein the program is executed by a processor when running.

[0009] According to another aspect of the embodiments of the present disclosure, an image transmission and control device based on dynamic EQ compensation and anti-nuclear radiation is also provided, comprising: a first determination module configured to collect intensity values of various types of nuclear radiation in an environment where an unshielded twisted pair is located, and determine a first conductor loss coefficient and a first dielectric loss coefficient of the unshielded twisted pair based on the intensity values of the various types of nuclear radiation; a second determination module configured to transmit a target video signal added with a first test pulse signal through the unshielded twisted pair, and determine a second conductor loss coefficient and a second dielectric loss coefficient of the unshielded twisted pair according to a loss condition of the first test pulse signal in the target video signal after transmission; a fusion module configured to fuse the first conductor loss coefficient and the second conductor loss coefficient to obtain a third conductor loss coefficient, and fuse the first dielectric loss coefficient and the second dielectric loss coefficient to obtain a third dielectric loss coefficient; a third determination module configured to determine a cable attenuation coefficient of the unshielded twisted pair according to a preset composite attenuation model based on a signal frequency of the target video signal, the third conductor loss coefficient and the third dielectric loss coefficient; and an equalization compensation module configured to calculate an amplitude attenuation factor of the unshielded twisted pair according to a preset cable transmission function based on the cable attenuation coefficient, and perform equalization compensation on the target video signal after transmission through the unshielded twisted pair based on the amplitude attenuation factor.

[0010] According to another aspect of the embodiments of the present disclosure, an image transmission and control device based on dynamic EQ compensation and anti-nuclear radiation is also provided, comprising: a first determination module configured to collect intensity values of various types of nuclear radiation in an environment where an unshielded twisted pair is located, and determine a first conductor loss coefficient and a first dielectric loss coefficient of the unshielded twisted pair based on the intensity values of the various types of nuclear radiation; a second determination module configured to transmit a target video signal added with a first test pulse signal through the unshielded twisted pair, and determine a second conductor loss coefficient and a second dielectric loss coefficient of the unshielded twisted pair according to a loss condition of the first test pulse signal in the target video signal after transmission; a fusion module configured to fuse the first conductor loss coefficient and the second conductor loss coefficient to obtain a third conductor loss coefficient, and fuse the first dielectric loss coefficient and the second dielectric loss coefficient to obtain a third dielectric loss coefficient; a third determination module configured to determine a cable attenuation coefficient of the unshielded twisted pair according to a preset composite attenuation model based on a signal frequency of the target video signal, the third conductor loss coefficient and the third dielectric loss coefficient; and an equalization compensation module configured to calculate an amplitude attenuation factor of the unshielded twisted pair according to a preset cable transmission function based on the cable attenuation coefficient, and perform equalization compensation on the target video signal after transmission through the unshielded twisted pair based on the amplitude attenuation factor.

[0011] The application first collects the intensity values of various nuclear radiation in the environment where the unshielded twisted pair is located, and dynamically calculates the first conductor loss coefficient and the first dielectric loss coefficient of the unshielded twisted pair based on the nuclear radiation intensity values, for fine quantification of the influence of environmental nuclear radiation on the transmission performance of the unshielded twisted pair. Then, the target video signal added with the first test pulse signal is transmitted through the unshielded twisted pair, and the second conductor loss coefficient and the second dielectric loss coefficient of the unshielded twisted pair are determined according to the loss of the first test pulse signal in the target video signal after transmission, for quantifying the comprehensive influence of signal frequency and all environmental factors on the transmission performance of the unshielded twisted pair. Secondly, the first loss coefficient (including the first conductor loss coefficient and the first dielectric loss coefficient) which has fine quantified the influence of environmental nuclear radiation and the second loss coefficient (including the second conductor loss coefficient and the second dielectric loss coefficient) which comprehensively reflects the influence of environmental factors and signal frequency are fused to obtain a composite loss coefficient (including a third conductor loss coefficient and a third dielectric loss coefficient) which can dynamically adapt to complex electromagnetic environments, for subsequent cable attenuation coefficient calculation. Secondly, based on the signal frequency of the target video signal, the third conductor loss coefficient and the third dielectric loss coefficient, the cable attenuation coefficient of the unshielded twisted pair is calculated according to a preset composite attenuation model, for subsequent signal attenuation loss value calculation. Finally, based on the cable attenuation coefficient, the amplitude attenuation factor of the unshielded twisted pair is calculated according to a preset cable transmission function, and the target video signal transmitted through the unshielded twisted pair is equalized and compensated based on the amplitude attenuation factor, to restore the original quality of the target video signal. Thus, the technical effects of dynamically adapting to complex nuclear radiation environment, dynamically and accurately compensating signal attenuation, and significantly improving the video signal transmission quality and stability of the unshielded twisted pair are realized. Further, the technical problem of lack of dynamic compensation mechanism for nuclear radiation interference in the equalization compensation scheme for video signal transmission of the unshielded twisted pair in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings described herein are used to provide further understanding of the present disclosure, and form a part of the present application. The illustrative embodiments of the present disclosure and their descriptions serve to explain the present disclosure, and do not constitute an improper limitation on the present disclosure. In the drawings:

[0013] Figure 1 is a hardware structure block diagram of a computing device for implementing the method according to Embodiment 1 of the present disclosure;

[0014] Figure 2 is a flowchart of the image transmission and control method based on dynamic EQ compensation and anti-nuclear radiation according to Embodiment 1 of the present application;

[0015] Figure 3 is a schematic diagram of the image transmission and control device based on dynamic EQ compensation and anti-nuclear radiation according to Embodiment 2 of the present application;

[0016] Figure 4 is a schematic diagram of an image transmission and control device based on dynamic EQ compensation and anti-nuclear radiation according to Embodiment 3 of the present application. DETAILED DESCRIPTION

[0017] In order to enable persons skilled in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by persons skilled in the art without creative labor should be within the protection scope of the present disclosure.

[0018] It should be noted that the terms "first", "second", and the like in the specification and claims of the present disclosure and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0019] Embodiment 1

[0020] According to the present embodiment, a method embodiment of an image transmission and control method based on dynamic EQ compensation and anti-nuclear radiation is provided. It should be noted that the steps shown in the flowchart of the drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown herein.

[0021] The method embodiment provided in the present embodiment can be executed in a server or similar computing device. Figure 1 A hardware structure block diagram of a computing device for implementing an image transmission and control method based on dynamic EQ compensation and anti-nuclear radiation is shown. As shown in the figure, the computing device includes a processor 1001, a memory 1002, and a bus 1003. The bus 1003 is used to connect the processor 1001, the memory 1002, and other components in the computing device, and can be implemented by a system bus, a North-South bus, an East-West bus, or other suitable means. Figure 1As shown, the computing device can include one or more processors (the processor can include, but not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory for storing data, a transmission device for communication function, and an input / output interface. The memory, the transmission device, and the input / output interface are connected with the processor through a bus. In addition, it can also include a display, a keyboard, and a cursor control device connected with the input / output interface. Those skilled in the art can understand that Figure 1 The structure shown is only a schematic, which does not limit the structure of the above-mentioned electronic device. For example, the computing device can include more or less components than those shown in the figure, or have a different configuration from that shown in the figure. Figure 1 Figure 1

[0022] It should be noted that the one or more processors and / or other data processing circuits described above can be referred to as "data processing circuits" herein. The data processing circuit can be embodied in whole or in part as software, hardware, firmware, or any combination thereof. In addition, the data processing circuit can be a single independent processing module, or all or part of any one of the other elements combined into the computing device. As referred to in the embodiments of the present disclosure, the data processing circuit serves as a processor to control, for example, the selection of the variable resistance terminal path connected with the interface.

[0023] The memory can be used to store software programs and modules of application software, such as program instructions / data storage devices corresponding to the image transmission and control method based on dynamic EQ compensation and anti-nuclear radiation in the embodiments of the present disclosure. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory, that is, implements the image transmission and control method based on dynamic EQ compensation and anti-nuclear radiation of the above-mentioned application program. The memory can include a high-speed random access memory, and can also include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some examples, the memory can further include a memory remotely arranged with respect to the processor, which can be connected to the computing device through a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0024] ​​The transmission device is configured to receive or transmit data via a network. The network can include, for example, a wireless network provided by a communication provider of the computing device. In one example, the transmission device includes a network interface controller (NIC) that can connect to other network devices through a base station to communicate with the Internet. In one example, the transmission device can be a radio frequency (RF) module that is configured to communicate with the Internet wirelessly.

[0025] The display can be, for example, a touch screen liquid crystal display (LCD) that enables a user to interact with a user interface of the computing device.

[0026] It should be noted that, in some optional embodiments, the above Figure 1 The computing device can include hardware elements (including circuitry), software elements (including computer code stored on a computer readable medium), or a combination of both hardware and software elements. It should be noted that Figure 1 is merely one example of a particular implementation and is intended to illustrate the types of components that can be present in the computing device.

[0027] In the above operating environment, according to a first aspect of the present embodiment, an image transmission and control method based on dynamic EQ compensation and anti-nuclear radiation is provided. Figure 2 A flowchart of the method is shown, referring to Figure 2 The method includes:

[0028] S202: Collect intensity values of various types of nuclear radiation in the environment in which the unshielded twisted pair cable is located, and determine a first conductor loss coefficient and a first dielectric loss coefficient of the unshielded twisted pair cable based on the intensity values of the various types of nuclear radiation;

[0029] S204: Transmit the target video signal added with the first test pulse signal through the unshielded twisted pair cable, and determine a second conductor loss coefficient and a second dielectric loss coefficient of the unshielded twisted pair cable according to the loss of the first test pulse signal in the transmitted target video signal;

[0030] S206: Fuse the first conductor loss coefficient and the second conductor loss coefficient to obtain a third conductor loss coefficient; fuse the first dielectric loss coefficient and the second dielectric loss coefficient to obtain a third dielectric loss coefficient;

[0031] S208: Based on the signal frequency of the target video signal, the third conductor loss coefficient, and the third dielectric loss coefficient, determine the cable attenuation coefficient of the unshielded twisted pair according to a preset composite attenuation model; and

[0032] S210: Based on the cable attenuation coefficient, calculate the amplitude attenuation factor of the unshielded twisted pair according to the preset cable transmission function, and perform equalization compensation on the target video signal transmitted through the unshielded twisted pair based on the amplitude attenuation factor.

[0033] Specifically, nuclear radiation intensity sensors can be strategically positioned around the unshielded twisted-pair cable in advance to ensure comprehensive coverage and accurate acquisition of various types of nuclear radiation affecting the cable. When video signals need to be transmitted via the unshielded twisted-pair cable, the sensors can monitor the transmission environment in real time to obtain information on the intensity of various types of nuclear radiation present in the environment. Subsequently, based on this acquired nuclear radiation intensity data, a series of calculations and analyses are performed to determine the conductor and dielectric loss characteristics of the unshielded twisted-pair cable under the influence of nuclear radiation. This yields the first conductor loss coefficient and the first dielectric loss coefficient, which can precisely quantify the loss of the unshielded twisted-pair cable under a specific nuclear radiation environment, providing fundamental data for subsequent steps.

[0034] Then, a first test pulse signal is superimposed onto the target video signal. After transmission through unshielded twisted pair cable, the amplitude attenuation of each frequency component in the first test pulse signal is analyzed at the receiving end using Fourier transform. By analyzing the amplitude attenuation of each frequency component, the second conductor loss coefficient and the second dielectric loss coefficient of the unshielded twisted pair cable in actual transmission scenarios can be calculated. This quantifies the comprehensive impact of signal frequency and all environmental factors on the transmission performance of the unshielded twisted pair cable, providing dynamic data support for evaluating cable performance.

[0035] Next, considering the frequency characteristics of the target video signal to be transmitted, and combining the loss coefficient obtained from the fusion processing, the cable attenuation coefficient of the unshielded twisted pair is determined through a preset composite attenuation model. This establishes a direct relationship between signal frequency and line loss, providing key parameters for quantifying the attenuation degree of the video signal during transmission. The expression for this composite attenuation model is as follows:

[0036]

[0037] In the formula, is the cable attenuation coefficient of the unshielded twisted pair, k1 is the third conductor loss coefficient of the unshielded twisted pair, k2 is the third dielectric loss coefficient of the unshielded twisted pair, and f is the signal frequency of the target video signal to be transmitted.

[0038] Finally, based on the determined cable attenuation coefficient, the amplitude attenuation factor of the unshielded twisted pair cable is calculated through the existing cable transfer function. Subsequently, the target video signal transmitted through the unshielded twisted pair cable is equalized and compensated at the receiving end. Thus, through the compensation mechanism, the signal attenuation in the transmission process is eliminated, ensuring that the video signal at the receiving end can be restored to a quality level close to the original, to achieve clear and stable video signal transmission. The cable transfer function is:

[0039]

[0040] wherein, the amplitude attenuation factor of the unshielded twisted pair cable, is the cable attenuation coefficient of the unshielded twisted pair cable, and L is the length of the unshielded twisted pair cable.

[0041] As mentioned in the background, nuclear radiation interference is also an important factor affecting the quality of video signal transmission over unshielded twisted pair cables. Common types of nuclear radiation include alpha rays, beta rays, gamma rays, neutron rays, and X-rays. These nuclear radiations can couple to the unshielded twisted pair cable and interfere with the video signal, resulting in signal quality degradation, noise, distortion, and other problems. The intensity and type of nuclear radiation interference depend on environmental factors, making signal transmission quality uncertain and volatile. However, existing equalization compensation schemes often fail to fully consider the impact of nuclear radiation interference, lacking a dynamic compensation mechanism for nuclear radiation interference.

[0042] Therefore, the application first collects intensity values of various types of nuclear radiation in the environment where the unshielded twisted pair cable is located, and dynamically calculates the first conductor loss coefficient and the first dielectric loss coefficient of the unshielded twisted pair cable based on the intensity values of the nuclear radiation, to finely quantify the influence of environmental nuclear radiation on the transmission performance of the unshielded twisted pair cable. Then, the target video signal added with the first test pulse signal is transmitted through the unshielded twisted pair cable, and the second conductor loss coefficient and the second dielectric loss coefficient of the unshielded twisted pair cable are determined according to the loss of the first test pulse signal in the target video signal after transmission, to quantify the comprehensive influence of signal frequency and all environmental factors on the transmission performance of the unshielded twisted pair cable. Secondly, the first loss coefficient (including the first conductor loss coefficient and the first dielectric loss coefficient) finely quantified by the influence of environmental nuclear radiation and the second loss coefficient (including the second conductor loss coefficient and the second dielectric loss coefficient) comprehensively reflecting the influence of environmental factors and signal frequency are fused to obtain a composite loss coefficient (including a third conductor loss coefficient and a third dielectric loss coefficient) that can dynamically adapt to a complex electromagnetic environment, for subsequent cable attenuation coefficient calculation. Secondly, based on the signal frequency of the target video signal, the third conductor loss coefficient and the third dielectric loss coefficient, the cable attenuation coefficient of the unshielded twisted pair cable is calculated according to a preset composite attenuation model, for subsequent signal attenuation loss value calculation. Finally, based on the cable attenuation coefficient, the amplitude attenuation factor of the unshielded twisted pair cable is calculated according to a preset cable transmission function, and the target video signal transmitted through the unshielded twisted pair cable is equalized and compensated based on the amplitude attenuation factor, to restore the original quality of the target video signal. Thus, the technical effects of dynamically adapting to a complex nuclear radiation environment, dynamically and accurately compensating signal attenuation, and significantly improving the video signal transmission quality and stability of the unshielded twisted pair cable are achieved. Further, the technical problem of the lack of a dynamic compensation mechanism for nuclear radiation interference in the equalization and compensation scheme for the video signal transmission of the unshielded twisted pair cable in the prior art is solved.

[0043] Optionally, the operation of determining the first conductor loss coefficient and the first dielectric loss coefficient of the unshielded twisted pair cable based on the intensity values of various types of nuclear radiation comprises: calculating the first conductor loss coefficient of the unshielded twisted pair cable by a first formula based on the intensity values of various types of nuclear radiation; wherein the first formula is:

[0044]

[0045] wherein k 11 is the first conductor loss coefficient of the unshielded twisted pair cable; x0 is the initial conductor loss coefficient of the unshielded twisted pair cable in a nuclear radiation-free environment; I i is the intensity value of the ith type of nuclear radiation; x i is a constant term of the intensity value of the ith type of nuclear radiation, and the constant term belongs to a preset value; n is the number of types of nuclear radiation in the environment where the unshielded twisted pair cable is located.

[0046] The first medium loss coefficient of the unshielded twisted pair is calculated by a second formula based on the intensity values of various types of nuclear radiation, wherein the second formula is:

[0047]

[0048] wherein k 21 is the first medium loss coefficient of the unshielded twisted pair; y0 is the initial medium loss coefficient of the unshielded twisted pair in a nuclear radiation-free environment; I i is the intensity value of the ith type of nuclear radiation; y i is a constant term of the intensity value of the ith type of nuclear radiation, and the constant term belongs to a preset value; and n is the number of types of nuclear radiation in the environment of the unshielded twisted pair.

[0049] Specifically, in actual applications, the unshielded twisted pair is often in a complex nuclear radiation environment. Considering the influence of these nuclear radiation sources, the transmission performance of the unshielded twisted pair in actual use can be more accurately evaluated. Therefore, after the nuclear radiation intensity values are collected, a preset mathematical model (including the first formula and the second formula described above) needs to be used for calculation to convert the nuclear radiation intensity values into the conductor loss coefficient and the medium loss coefficient of the unshielded twisted pair. The preset mathematical model can more accurately calculate the first conductor loss coefficient and the first medium loss coefficient of the unshielded twisted pair in a specific nuclear radiation environment by introducing the nuclear radiation intensity values and the related constant terms.

[0050] The first conductor loss coefficient k 11 represents the conductor loss coefficient of the unshielded twisted pair in a specific nuclear radiation environment, which is a comprehensive index reflecting the signal attenuation of the unshielded twisted pair when transmitting signals due to various factors (including nuclear radiation). Therefore, in the first formula, the initial conductor loss coefficient x0 of the unshielded twisted pair in a nuclear radiation-free environment is taken as a reference value, which is the inherent conductor loss of the unshielded twisted pair in an ideal environment without any nuclear radiation interference. In the first formula, the different influences of different types of nuclear radiation on the unshielded twisted pair are also considered, and a specific constant term x i is set for each type of nuclear radiation.

[0051] The k 21 represents the medium loss coefficient of the unshielded twisted pair in a specific nuclear radiation environment. In the second formula, the initial medium loss coefficient y0 of the unshielded twisted pair in a nuclear radiation-free environment is taken as a reference value, which is the inherent medium loss of the unshielded twisted pair in an ideal environment without any nuclear radiation interference. In the second formula, the different influences of different types of nuclear radiation on the unshielded twisted pair are also considered, and a specific constant term y i.

[0052] Therefore, by introducing the nuclear radiation intensity value and the related constant term, the conductor loss and the dielectric loss of the unshielded twisted pair in a specific nuclear radiation environment can be more accurately calculated, which helps to develop a more reasonable signal transmission compensation strategy and improve the reliability and stability of signal transmission.

[0053] Alternatively, each constant term in the first formula and the second formula is determined by the following steps: in a nuclear radiation-free test environment, transmitting second test pulse signals of different frequencies through the unshielded twisted pair, and performing loss analysis on the transmitted second test pulse signals, and determining the initial conductor loss coefficient and the initial dielectric loss coefficient of the unshielded twisted pair according to the results of the loss analysis; in a nuclear radiation test environment, transmitting second test pulse signals of different frequencies through the unshielded twisted pair, and performing loss analysis on the transmitted second test pulse signals, and determining a plurality of sets of loss coefficients of the unshielded twisted pair according to the results of the loss analysis; wherein each set of loss coefficients includes a test conductor loss coefficient and a test dielectric loss coefficient; collecting the test intensity values of various types of nuclear radiation in the nuclear radiation test environment, setting each constant term in the first formula and the second formula as an unknown quantity, and bringing the test intensity values of various types of nuclear radiation, the plurality of sets of loss coefficients, the initial conductor loss coefficient and the initial dielectric loss coefficient into the first formula and the second formula to solve each constant term in the first formula and the second formula.

[0054] Specifically, in a nuclear radiation-free test environment (for example, in a shielded room), second test pulse signals (f1, f2, …, fn) of different frequencies are transmitted through an unshielded twisted pair, and the ends of the unshielded twisted pair (with a length of L) are connected to Port 1 and Port 2 of a vector network analyzer (VNA). The vector network analyzer sends a sweep signal (for example, 1 MHz step), and records the insertion loss S i (f 21 ) at each frequency point f i . Then, the cable attenuation coefficient of the unshielded twisted pair at each frequency point f i is calculated by the following formula:

[0055]

[0056] Next, the cable attenuation coefficient of the unshielded twisted pair at each frequency point f i is brought into the composite attenuation model to obtain an overdetermined equation set:

[0057]

[0058] ​​Solving the above overdetermined equations by least squares method, the k1 and k2 under the non-nuclear radiation test environment are finally obtained. Thus, the k1 under the non-nuclear radiation test environment is determined as the initial conductor loss coefficient x0 of the unshielded twisted pair, and the k2 under the non-nuclear radiation test environment is determined as the initial dielectric loss coefficient y0 of the unshielded twisted pair.

[0059] Through the above steps, the initial conductor loss coefficient x0 and the initial dielectric loss coefficient y0 of the unshielded twisted pair under the non-nuclear radiation environment can be accurately determined.

[0060] Then, a plurality of nuclear radiation sources are introduced into the shielded chamber, and then the intensity value of each type of nuclear radiation source is accurately measured using a spectrum analyzer and an electromagnetic field probe (unit: dBμV / m), and its frequency band characteristics are recorded. Subsequently, a plurality of sets of second test pulse signals (covering the target frequency band, such as 1MHz-150MHz) are transmitted, each set of frequency corresponding to a test point. For example, pulse signals with frequencies of 10MHz, 50MHz, and 100MHz are transmitted, and each frequency point is tested repeatedly 3 times to reduce random errors. The insertion loss (S 21 parameters) are measured by a vector network analyzer (VNA), and the cable attenuation coefficient of the unshielded twisted pair under each frequency point f i is obtained. After that, the cable attenuation coefficient of the unshielded twisted pair under each frequency point f i is obtained. is brought into the composite attenuation model, and the corresponding equation set is obtained by solving by least squares method, and finally the k1 and k2 under the nuclear radiation test environment are obtained. According to the above method, a plurality of rounds of experiments are carried out to obtain a plurality of sets of k1 and k2 under the nuclear radiation test environment.

[0061] Set each constant in the first formula as an unknown quantity, and take the k1 under the nuclear radiation test environment as the first conductor loss coefficient k 11 of the unshielded twisted pair. The initial conductor loss coefficient x0 obtained by the above solving and the plurality of sets of k1 under the nuclear radiation test environment are respectively brought into the first formula to obtain the corresponding overdetermined equation set and solve to obtain the specific values of each constant in the first formula.

[0062] Similarly, set each constant in the second formula as an unknown quantity, and take the k2 under the nuclear radiation test environment as the first dielectric loss coefficient k 21 of the unshielded twisted pair. The initial dielectric loss coefficient y0 obtained by the above solving and the plurality of sets of k2 under the nuclear radiation test environment are respectively brought into the first formula to obtain the corresponding overdetermined equation set and solve to obtain the specific values of each constant in the second formula.

[0063] In this way, each constant in the first formula and the second formula can be accurately determined.

[0064] Optionally, the operation of fusing the first conductor loss coefficient and the second conductor loss coefficient to obtain the third conductor loss coefficient includes: fusing the first conductor loss coefficient and the second conductor loss coefficient using a third formula to obtain the third conductor loss coefficient; wherein, the third formula is:

[0065]

[0066] In the formula, k1 is the loss coefficient of the third conductor of the unshielded twisted pair; k 11 k is the loss coefficient of the first conductor of the unshielded twisted pair. 12 The loss coefficient of the second conductor of the unshielded twisted pair; and These are the weighting coefficients. + =1;

[0067] The first dielectric loss coefficient and the second dielectric loss coefficient are fused using a fourth formula to obtain a third dielectric loss coefficient; wherein the fourth formula is:

[0068]

[0069] In the formula, k2 is the third dielectric loss coefficient of the unshielded twisted pair cable; k 21 k is the first dielectric loss coefficient of the unshielded twisted pair cable. 22 The second dielectric loss coefficient of the unshielded twisted pair cable; and These are the weighting coefficients. + =1.

[0070] In this embodiment of the invention, the weighting coefficients are determined through the following steps. , , and :

[0071] (1) Prepare M test samples, the m-th test sample includes the frequencies that need to be transmitted in a nuclear radiation test environment. , ,…, The test pulse signal, the intensity value of each type of nuclear radiation source in this nuclear radiation test environment. , ,…, ( (Number of types of nuclear radiation sources), and each frequency point. The actual cable attenuation coefficient of unshielded twisted pair ;

[0072] (2) In the nuclear radiation test environment of the intensity value of each type of nuclear radiation source , ,…, , transmit different frequency test pulse signals , ,…, through unshielded twisted pair, connect the ends of the unshielded twisted pair (length L) to Port 1 and Port 2 of the vector network analyzer (VNA), the vector network analyzer sends sweep signal (for example, 1MHz step), records the insertion loss of each frequency point . Then, calculate the test cable attenuation coefficient of the unshielded twisted pair at each frequency point according to the corresponding formula;

[0073] (3) Put the test cable attenuation coefficient of the unshielded twisted pair at each frequency point of the mth test sample into the composite attenuation model to obtain the composite attenuation model as follows:

[0074]

[0075] (4) Calculate the loss value of all test samples by the following formula:

[0076]

[0077] (5) Update the parameters 、 、 and of the composite attenuation model according to the calculated loss value by using gradient descent algorithm, and iterate and optimize until the loss value converges to the minimum value or reaches the preset iteration number / precision threshold.

[0078] Optionally, the operation of transmitting the target video signal added with the first test pulse signal through the unshielded twisted pair wire and determining the second conductor loss coefficient and the second dielectric loss coefficient of the unshielded twisted pair wire according to the loss of the first test pulse signal in the target video signal after transmission comprises: generating a first test pulse signal containing a plurality of different frequency components, and adding the first test pulse signal into the target video signal to be transmitted; transmitting the target video signal added with the first test pulse signal through the unshielded twisted pair wire; performing fast Fourier transform on the first test pulse signal before and after transmission to obtain the amplitude information of the first test pulse signal before and after transmission at each frequency component; comparing the amplitude changes of each frequency component in the first test pulse signal before and after transmission, and determining the cable attenuation coefficient of the unshielded twisted pair wire at the corresponding frequency component according to the amplitude changes; and bringing the cable attenuation coefficient of the unshielded twisted pair wire at each frequency component and the frequency value of each frequency component into the following equation to solve the second conductor loss coefficient and the second dielectric loss coefficient:

[0079]

[0080] wherein, is the cable attenuation coefficient of the unshielded twisted pair wire at the i-th frequency component; is the frequency value of the i-th frequency component; k 12 is the second conductor loss coefficient; k 22 is the second dielectric loss coefficient.

[0081] Specifically, a first test pulse signal (such as a sweep signal or a comb spectrum signal) containing a plurality of different frequency components is generated, which aims to cover the key frequency band (such as 0-6MHz) of the video signal to comprehensively evaluate the transmission characteristics of the cable to different frequency components. Then, the test pulse is embedded into the target video signal in a low-amplitude and high-frequency modulation manner through a signal synthesizer. For example, the test pulse is inserted between the line synchronization pulse intervals of the video signal, which takes advantage of the characteristics of the period without effective image information to avoid visible interference to the video content.

[0082] Subsequently, the unshielded twisted pair wire (UTP) is connected to the signal generator and the receiving end device, the target video signal added with the first test pulse signal is transmitted through the unshielded twisted pair wire, the original first test pulse signal is subjected to Fourier transform at the sending end to record the initial amplitude of each frequency component and establish a spectrum reference. The first test pulse signal after transmission is subjected to Fourier transform at the receiving end to extract the residual amplitude of each frequency component. By comparing the spectra before and after transmission, the loss of each frequency component can be quantified.

[0083] for each frequency component , the amplitude attenuation amount is calculated :

[0084]

[0085] wherein, represents the frequency component energy attenuation (unit: dB) caused by cable loss in the transmission process; represents the frequency component the remaining amplitude value; represents the frequency component the remaining initial amplitude value.

[0086] convert the amplitude attenuation into the cable attenuation coefficient in the linear domain :

[0087]

[0088] wherein, reflects the total loss (including conductor, dielectric and nuclear radiation coupling loss) of the unshielded twisted pair on the frequency component .

[0089] Next, the cable attenuation coefficient of the unshielded twisted pair at each frequency component is brought into the composite attenuation model , to obtain the corresponding overdetermined equation group, and the second conductor loss coefficient k 12 and the second dielectric loss coefficient k 22 are solved.

[0090] In this way, the second conductor loss coefficient k 12 and the second dielectric loss coefficient k 22 of the unshielded twisted pair can be accurately determined.

[0091] In addition, referring to Figure 1 , according to a second aspect of the present embodiment, a storage medium is provided. The storage medium includes a stored program, wherein when the program is executed by a processor, the above-mentioned method is executed.

[0092] It should be noted that, for the foregoing method embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the action order described, because according to the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0093] ​Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be realized by means of software on a general hardware platform as necessary, and of course can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, or an optical disc) and includes a plurality of instructions for causing a terminal device (which can be a mobile phone, a computer, a server, or a network device) to execute the method described in each embodiment of the present application.

[0094] Embodiment 2

[0095] Figure 3 An image transmission and control device based on dynamic EQ compensation and anti-nuclear radiation according to the present embodiment is shown, which corresponds to the method according to Embodiment 1. Referring to Figure 3 The device includes: a first determination module 310 configured to collect intensity values of various types of nuclear radiation in an environment where an unshielded twisted pair cable is located, and determine a first conductor loss coefficient and a first dielectric loss coefficient of the unshielded twisted pair cable based on the intensity values of the various types of nuclear radiation; a second determination module 320 configured to transmit a target video signal to which a first test pulse signal is added through the unshielded twisted pair cable, and determine a second conductor loss coefficient and a second dielectric loss coefficient of the unshielded twisted pair cable according to a loss of the first test pulse signal in the target video signal after transmission; a fusion module 330 configured to fuse the first conductor loss coefficient and the second conductor loss coefficient to obtain a third conductor loss coefficient, and fuse the first dielectric loss coefficient and the second dielectric loss coefficient to obtain a third dielectric loss coefficient; a third determination module 340 configured to determine a cable attenuation coefficient of the unshielded twisted pair cable according to a preset composite attenuation model based on a signal frequency of the target video signal, the third conductor loss coefficient, and the third dielectric loss coefficient; and an equalization compensation module 350 configured to calculate an amplitude attenuation factor of the unshielded twisted pair cable according to a preset cable transmission function based on the cable attenuation coefficient, and perform equalization compensation on the target video signal after transmission through the unshielded twisted pair cable based on the amplitude attenuation factor.

[0096] Optionally, the first determination module 310 is specifically configured to calculate the first conductor loss coefficient of the unshielded twisted pair cable by a first formula based on the intensity values of the various types of nuclear radiation; wherein the first formula is:

[0097]

[0098] wherein k 11is a first conductor loss coefficient of the unshielded twisted pair wire; x0 is an initial conductor loss coefficient of the unshielded twisted pair wire in a non-nuclear radiation environment; I i is an intensity value of the ith type of nuclear radiation; x i is a constant term of the intensity value of the ith type of nuclear radiation, the constant term belonging to a preset value; n is a number of types of nuclear radiation in an environment in which the unshielded twisted pair wire is located;

[0099] The first medium loss coefficient of the unshielded twisted pair wire is calculated based on the intensity values of the types of nuclear radiation by a second formula; wherein the second formula is:

[0100]

[0101] wherein, k 21 is a first medium loss coefficient of the unshielded twisted pair wire; y0 is an initial medium loss coefficient of the unshielded twisted pair wire in a non-nuclear radiation environment; I i is an intensity value of the ith type of nuclear radiation; y i is a constant term of the intensity value of the ith type of nuclear radiation, the constant term belonging to a preset value; n is a number of types of nuclear radiation in an environment in which the unshielded twisted pair wire is located.

[0102] Optionally, the apparatus further comprises a fourth determining module configured to determine the constant terms in the first formula and the second formula by the following steps: transmitting second test pulse signals of different frequencies through the unshielded twisted pair wire in a non-nuclear radiation test environment, and performing loss analysis on the second test pulse signals after transmission, and determining an initial conductor loss coefficient and an initial medium loss coefficient of the unshielded twisted pair wire according to a result of the loss analysis; transmitting second test pulse signals of different frequencies through the unshielded twisted pair wire in a nuclear radiation test environment, and performing loss analysis on the second test pulse signals after transmission, and determining a plurality of groups of loss coefficients of the unshielded twisted pair wire according to a result of the loss analysis; wherein each group of loss coefficients comprises a test conductor loss coefficient and a test medium loss coefficient; collecting test intensity values of the types of nuclear radiation in the nuclear radiation test environment, setting the constant terms in the first formula and the second formula as unknowns, and bringing the test intensity values of the types of nuclear radiation, the plurality of groups of loss coefficients, the initial conductor loss coefficient and the initial medium loss coefficient into the first formula and the second formula to solve the constant terms in the first formula and the second formula.

[0103] Optionally, the operation of fusing the first conductor loss coefficient and the second conductor loss coefficient to obtain a third conductor loss coefficient comprises: fusing the first conductor loss coefficient and the second conductor loss coefficient to obtain a third conductor loss coefficient by a third formula; wherein the third formula is:

[0104]

[0105] wherein k1 is a third conductor loss coefficient of the unshielded twisted pair line; k 11 is a first conductor loss coefficient of the unshielded twisted pair line; k 12 is a second conductor loss coefficient of the unshielded twisted pair line; and is a weight coefficient, + =1;

[0106] The first medium loss coefficient and the second medium loss coefficient are fused by a fourth formula to obtain a third medium loss coefficient; wherein the fourth formula is:

[0107]

[0108] wherein k2 is a third medium loss coefficient of the unshielded twisted pair line; k 21 is a first medium loss coefficient of the unshielded twisted pair line; k 22 is a second medium loss coefficient of the unshielded twisted pair line; and is a weight coefficient, + =1.

[0109] Optionally, the second determining module 320 is specifically configured to: generate a first test pulse signal containing a plurality of different frequency components, and add the first test pulse signal to a target video signal to be transmitted; transmit the target video signal added with the first test pulse signal through the unshielded twisted pair line; perform fast Fourier transform on the first test pulse signal before and after transmission to obtain amplitude information of the first test pulse signal before and after transmission at each frequency component; compare the amplitude changes of each frequency component in the first test pulse signal before and after transmission, and determine the cable attenuation coefficient of the unshielded twisted pair line at the corresponding frequency component according to the amplitude changes; and input the cable attenuation coefficient of the unshielded twisted pair line at each frequency component and the frequency value of each frequency component into the following equation to solve the second conductor loss coefficient and the second medium loss coefficient:

[0110]

[0111] wherein, is the cable attenuation coefficient of the unshielded twisted pair line at the i th frequency component; is the frequency value of the i th frequency component; k 12 is the second conductor loss coefficient; k 22for the second medium loss coefficient.

[0112] According to the present embodiment, first, the intensity values of various types of nuclear radiation in the environment where the unshielded twisted pair cable is located are collected, and the first conductor loss coefficient and the first medium loss coefficient of the unshielded twisted pair cable are dynamically calculated based on the intensity values of the nuclear radiation, for fine quantification of the influence of environmental nuclear radiation on the transmission performance of the unshielded twisted pair cable. Then, the target video signal with the first test pulse signal added is transmitted through the unshielded twisted pair cable, and the second conductor loss coefficient and the second medium loss coefficient of the unshielded twisted pair cable are determined according to the loss of the first test pulse signal in the target video signal after transmission, for quantification of the comprehensive influence of signal frequency and all environmental factors on the transmission performance of the unshielded twisted pair cable. Second, the first loss coefficient (including the first conductor loss coefficient and the first medium loss coefficient) fine quantified for the influence of environmental nuclear radiation and the second loss coefficient (including the second conductor loss coefficient and the second medium loss coefficient) comprehensively reflecting the influence of environmental factors and signal frequency are fused to obtain a composite loss coefficient (including a third conductor loss coefficient and a third medium loss coefficient) that can dynamically adapt to a complex electromagnetic environment, for subsequent cable attenuation coefficient calculation. Second, based on the signal frequency of the target video signal, the third conductor loss coefficient and the third medium loss coefficient, the cable attenuation coefficient of the unshielded twisted pair cable is calculated according to a preset composite attenuation model, for subsequent signal attenuation loss value calculation. Finally, based on the cable attenuation coefficient, the amplitude attenuation factor of the unshielded twisted pair cable is calculated according to a preset cable transmission function, and the target video signal transmitted through the unshielded twisted pair cable is equalized and compensated based on the amplitude attenuation factor to restore the original quality of the target video signal. Thus, the technical effects of dynamically adapting to a complex nuclear radiation environment, dynamically and accurately compensating signal attenuation, and significantly improving the transmission quality and stability of the unshielded twisted pair cable video signal are achieved. Further, the technical problem of the lack of a dynamic compensation mechanism for nuclear radiation interference in the equalization and compensation scheme for unshielded twisted pair cable video signal transmission in the prior art is solved.

[0113] Embodiment 3

[0114] Figure 4 An image transmission and control device based on dynamic EQ compensation and resistant to nuclear radiation according to the present embodiment is shown, which corresponds to the method according to embodiment 1. Referring to Figure 4As shown, the device comprises: a processor 410; and a memory 420 connected with the processor 410, used to provide the processor 410 with instructions to process the following processing steps: collecting intensity values of various types of nuclear radiation in the environment where the unshielded twisted pair is located, and determining a first conductor loss coefficient and a first dielectric loss coefficient of the unshielded twisted pair based on the intensity values of various types of nuclear radiation; transmitting a target video signal added with a first test pulse signal through the unshielded twisted pair, and determining a second conductor loss coefficient and a second dielectric loss coefficient of the unshielded twisted pair according to the loss of the first test pulse signal in the target video signal after transmission; fusing the first conductor loss coefficient and the second conductor loss coefficient to obtain a third conductor loss coefficient; fusing and processing the first dielectric loss coefficient and the second dielectric loss coefficient to obtain a third dielectric loss coefficient; determining a cable attenuation coefficient of the unshielded twisted pair according to a preset composite attenuation model based on the signal frequency of the target video signal, the third conductor loss coefficient and the third dielectric loss coefficient; and calculating an amplitude attenuation factor of the unshielded twisted pair based on the cable transmission function according to the cable attenuation coefficient, and performing equalization compensation on the target video signal transmitted through the unshielded twisted pair based on the amplitude attenuation factor.

[0115] Optionally, the operation of determining the first conductor loss coefficient and the first dielectric loss coefficient of the unshielded twisted pair based on the intensity values of various types of nuclear radiation comprises: calculating the first conductor loss coefficient of the unshielded twisted pair by a first formula based on the intensity values of various types of nuclear radiation; wherein the first formula is:

[0116]

[0117] wherein k 11 is the first conductor loss coefficient of the unshielded twisted pair; x0 is an initial conductor loss coefficient of the unshielded twisted pair in a nuclear radiation-free environment; I i is the intensity value of the i-th type of nuclear radiation; x i is a constant term of the intensity value of the i-th type of nuclear radiation, and the constant term belongs to a preset value; n is the number of types of nuclear radiation in the environment where the unshielded twisted pair is located;

[0118] calculating the first dielectric loss coefficient of the unshielded twisted pair by a second formula based on the intensity values of various types of nuclear radiation; wherein the second formula is:

[0119]

[0120] wherein k 21 is the first dielectric loss coefficient of the unshielded twisted pair; y0 is an initial dielectric loss coefficient of the unshielded twisted pair in a nuclear radiation-free environment; I iis the intensity value of the i-th type of nuclear radiation; y i is a constant term of the intensity value of the i-th type of nuclear radiation, the constant term belongs to a preset value; n is the number of types of nuclear radiation in the environment where the unshielded twisted pair cable is located.

[0121] Optionally, each constant in the first formula and the second formula is determined by the following steps: in a nuclear radiation-free test environment, transmitting second test pulse signals of different frequencies through the unshielded twisted pair cable, and performing loss analysis on the transmitted second test pulse signals, and determining the initial conductor loss coefficient and the initial dielectric loss coefficient of the unshielded twisted pair cable according to the result of the loss analysis; in a nuclear radiation test environment, transmitting second test pulse signals of different frequencies through the unshielded twisted pair cable, and performing loss analysis on the transmitted second test pulse signals, and determining a plurality of groups of loss coefficients of the unshielded twisted pair cable according to the result of the loss analysis; wherein each group of loss coefficients includes a test conductor loss coefficient and a test dielectric loss coefficient; collecting the test intensity values of each type of nuclear radiation in the nuclear radiation test environment, setting each constant in the first formula and the second formula as an unknown quantity, and bringing the test intensity values of each type of nuclear radiation, the plurality of groups of loss coefficients, the initial conductor loss coefficient and the initial dielectric loss coefficient into the first formula and the second formula to solve each constant in the first formula and the second formula.

[0122] Optionally, the operation of fusing the first conductor loss coefficient and the second conductor loss coefficient to obtain a third conductor loss coefficient includes: fusing the first conductor loss coefficient and the second conductor loss coefficient by a third formula to obtain a third conductor loss coefficient; wherein the third formula is:

[0123]

[0124] In the formula, k1 is the third conductor loss coefficient of the unshielded twisted pair cable; k 11 is the first conductor loss coefficient of the unshielded twisted pair cable; k 12 is the second conductor loss coefficient of the unshielded twisted pair cable; and is a weight coefficient, + =1;

[0125] fusing the first dielectric loss coefficient and the second dielectric loss coefficient by a fourth formula to obtain a third dielectric loss coefficient; wherein the fourth formula is:

[0126]

[0127] In the formula, k2 is the third dielectric loss coefficient of the unshielded twisted pair cable; k21 is a first dielectric loss coefficient of the unshielded twisted pair wire; k 22 is a second dielectric loss coefficient of the unshielded twisted pair wire; and is a weight coefficient, + = 1.

[0128] Optionally, the operation of transmitting the target video signal to which the first test pulse signal is added through the unshielded twisted pair wire and determining the second conductor loss coefficient and the second dielectric loss coefficient of the unshielded twisted pair wire according to the loss of the first test pulse signal in the target video signal after transmission includes: generating a first test pulse signal containing a plurality of different frequency components and adding the first test pulse signal to the target video signal to be transmitted; transmitting the target video signal to which the first test pulse signal is added through the unshielded twisted pair wire; performing fast Fourier transform on the first test pulse signal before and after transmission to obtain amplitude information of the first test pulse signal before and after transmission at each frequency component; comparing the amplitude changes of each frequency component in the first test pulse signal before and after transmission and determining the cable attenuation coefficient of the unshielded twisted pair wire when transmitting the corresponding frequency component according to the amplitude changes; and bringing the cable attenuation coefficient of the unshielded twisted pair wire when transmitting each frequency component and the frequency value of each frequency component into the following equation to solve the second conductor loss coefficient and the second dielectric loss coefficient:

[0129]

[0130] In the formula, is the cable attenuation coefficient of the unshielded twisted pair wire when transmitting the i-th frequency component; is the frequency value of the i-th frequency component; k 12 is the second conductor loss coefficient; k 22 is the second dielectric loss coefficient.

[0131] Thus, according to the embodiment, first, the intensity values of various nuclear radiations in the environment where the unshielded twisted pair is located are collected, and the first conductor loss coefficient and the first dielectric loss coefficient of the unshielded twisted pair are dynamically calculated based on the nuclear radiation intensity values, for fine quantification of the influence of environmental nuclear radiation on the transmission performance of the unshielded twisted pair. Then, the target video signal with the first test pulse signal added is transmitted through the unshielded twisted pair, and the second conductor loss coefficient and the second dielectric loss coefficient of the unshielded twisted pair are determined according to the loss of the first test pulse signal in the target video signal after transmission, for quantification of the comprehensive influence of signal frequency and all environmental factors on the transmission performance of the unshielded twisted pair. Second, the first loss coefficient (including the first conductor loss coefficient and the first dielectric loss coefficient) fine quantified for the influence of environmental nuclear radiation and the second loss coefficient (including the second conductor loss coefficient and the second dielectric loss coefficient) comprehensively reflecting the influence of environmental factors and signal frequency are fused to obtain a composite loss coefficient (including a third conductor loss coefficient and a third dielectric loss coefficient) that can dynamically adapt to a complex electromagnetic environment, for subsequent cable attenuation coefficient calculation. Second, based on the signal frequency of the target video signal, the third conductor loss coefficient and the third dielectric loss coefficient, the cable attenuation coefficient of the unshielded twisted pair is calculated according to a preset composite attenuation model, for subsequent signal attenuation loss value calculation. Finally, based on the cable attenuation coefficient, the amplitude attenuation factor of the unshielded twisted pair is calculated according to a preset cable transmission function, and the target video signal transmitted through the unshielded twisted pair is equalized and compensated based on the amplitude attenuation factor to restore the original quality of the target video signal. Thus, the technical effects of dynamically adapting to a complex nuclear radiation environment, dynamically and accurately compensating signal attenuation, and significantly improving the video signal transmission quality and stability of the unshielded twisted pair are achieved. Further, the technical problem of lack of dynamic compensation mechanism for nuclear radiation interference in the equalization and compensation scheme for unshielded twisted pair video signal transmission in the prior art is solved.

[0132] The above-mentioned serial numbers of the embodiments of the application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0133] In the above-mentioned embodiments of the application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0134] In several embodiments provided in the present application, it should be understood that the disclosed technology can be implemented by other ways. Among them, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed units can be indirect coupling or communication connection through some interfaces, units or modules, and can be electrical or other forms.

[0135] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0136] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0137] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The foregoing storage medium includes: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic disk or an optical disk, and various media that can store program codes.

[0138] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A method for image transmission and control based on dynamic EQ compensation and nuclear radiation resistance, characterized in that, include: In a nuclear radiation-free testing environment, second test pulse signals of different frequencies are transmitted through unshielded twisted pair cables, and loss analysis is performed on the transmitted second test pulse signals. Based on the results of the loss analysis, the initial conductor loss coefficient and the initial dielectric loss coefficient of the unshielded twisted pair cables are determined. In a nuclear radiation testing environment, second test pulse signals of different frequencies are transmitted through the unshielded twisted pair cable, and loss analysis is performed on the transmitted second test pulse signals. Based on the results of the loss analysis, multiple sets of loss coefficients for the unshielded twisted pair cable are determined. Each set of loss coefficients includes the test conductor loss coefficient and the test dielectric loss coefficient. Based on the intensity values ​​of various types of nuclear radiation in the environment where the unshielded twisted pair is located, the multiple sets of loss coefficients, the initial conductor loss coefficient, and the initial dielectric loss coefficient, the first conductor loss coefficient and the first dielectric loss coefficient of the unshielded twisted pair are determined. The target video signal with the first test pulse signal added is transmitted through the unshielded twisted pair cable, and the second conductor loss coefficient and the second dielectric loss coefficient of the unshielded twisted pair cable are determined according to the loss of the first test pulse signal in the transmitted target video signal. The first conductor loss coefficient and the second conductor loss coefficient are fused together to obtain the third conductor loss coefficient; the first dielectric loss coefficient and the second dielectric loss coefficient are fused together to obtain the third dielectric loss coefficient. Based on the signal frequency of the target video signal, the third conductor loss coefficient, and the third dielectric loss coefficient, the cable attenuation coefficient of the unshielded twisted pair is determined according to a preset composite attenuation model; and Based on the cable attenuation coefficient, the amplitude attenuation factor of the unshielded twisted pair is calculated according to the preset cable transmission function, and the target video signal transmitted through the unshielded twisted pair is equalized and compensated based on the amplitude attenuation factor.

2. The method according to claim 1, characterized in that, The operation of determining the first conductor loss coefficient and the first dielectric loss coefficient of the unshielded twisted pair cable based on the intensity values ​​of various types of nuclear radiation in the environment in which the unshielded twisted pair cable is located, the multiple sets of loss coefficients, the initial conductor loss coefficient, and the initial dielectric loss coefficient includes: Based on the intensity values ​​of various types of nuclear radiation in the environment where the unshielded twisted pair cable is located, the multiple sets of loss coefficients, the initial conductor loss coefficient, and the initial dielectric loss coefficient, the first conductor loss coefficient of the unshielded twisted pair cable is calculated using a first formula; wherein the first formula is: ； Where, k 11 x0 is the first conductor loss factor of the unshielded twisted pair cable; x0 is the initial conductor loss factor of the unshielded twisted pair cable in a nuclear radiation-free environment; I i x represents the intensity value of type i nuclear radiation; i , is a constant term representing the intensity value of the i-th type of nuclear radiation, and the constant term belongs to a preset value; n is the number of types of nuclear radiation in the environment where the unshielded twisted pair is located; Based on the intensity values ​​of various types of nuclear radiation in the environment where the unshielded twisted pair is located, the multiple sets of loss coefficients, the initial conductor loss coefficient, and the initial dielectric loss coefficient, the first dielectric loss coefficient of the unshielded twisted pair is calculated using a second formula; wherein the second formula is: ； Where, k 21 y0 is the first dielectric loss coefficient of the unshielded twisted pair; y0 is the initial dielectric loss coefficient of the unshielded twisted pair in a nuclear radiation-free environment; I i y represents the intensity value of type i nuclear radiation; i is a constant term for the intensity value of the i-th type of nuclear radiation, and the constant term belongs to a preset value; n is the number of types of nuclear radiation in the environment where the unshielded twisted pair is located.

3. The method according to claim 2, characterized in that, The constants in the first and second formulas are determined by the following steps: Collect the test intensity values ​​of various types of nuclear radiation under the nuclear radiation test environment, set the constants in the first formula and the second formula as unknowns, substitute the test intensity values ​​of various types of nuclear radiation, the multiple sets of loss coefficients, the initial conductor loss coefficient and the initial dielectric loss coefficient into the first formula and the second formula, and solve for the constants in the first formula and the second formula.

4. The method according to claim 3, characterized in that, The operation of fusing the first conductor loss coefficient and the second conductor loss coefficient to obtain the third conductor loss coefficient includes: The first conductor loss coefficient and the second conductor loss coefficient are fused using a third formula to obtain a third conductor loss coefficient; wherein the third formula is: ； In the formula, k1 is the loss coefficient of the third conductor of the unshielded twisted pair; k 11 k is the loss coefficient of the first conductor of the unshielded twisted pair. 12 The loss coefficient of the second conductor of the unshielded twisted pair; and These are the weighting coefficients. + =1; The first dielectric loss coefficient and the second dielectric loss coefficient are fused using a fourth formula to obtain a third dielectric loss coefficient; wherein the fourth formula is: ； In the formula, k2 is the third dielectric loss coefficient of the unshielded twisted pair cable; k 21 k is the first dielectric loss coefficient of the unshielded twisted pair cable. 22 The second dielectric loss coefficient of the unshielded twisted pair cable; and These are the weighting coefficients. + =1.

5. The method according to claim 1, characterized in that, The operation of transmitting the target video signal with the added first test pulse signal through the unshielded twisted pair cable, and determining the second conductor loss coefficient and the second dielectric loss coefficient of the unshielded twisted pair cable based on the loss of the first test pulse signal in the transmitted target video signal, includes: Generate a first test pulse signal containing multiple different frequency components, and add the first test pulse signal to the target video signal to be transmitted; The target video signal, to which the first test pulse signal has been added, is transmitted through the unshielded twisted pair cable. Perform a Fast Fourier Transform on the first test pulse signal before and after transmission to obtain the amplitude information of the first test pulse signal at each frequency component before and after transmission. Compare the amplitude changes of each frequency component in the first test pulse signal before and after transmission, and determine the cable attenuation coefficient when the unshielded twisted pair transmits the corresponding frequency component based on the amplitude changes. Substituting the cable attenuation coefficient and the frequency value of each frequency component into the following equations, the second conductor loss coefficient and the second dielectric loss coefficient are solved: ； In the formula, The cable attenuation coefficient is the cable attenuation factor when the unshielded twisted pair transmits the i-th frequency component. k is the frequency value of the i-th frequency component; 12 k is the loss coefficient of the second conductor. 22 This is the second dielectric loss coefficient.

6. A storage medium, characterized in that, The storage medium includes a stored program, wherein, when the program is executed, the method described in any one of claims 1 to 5 is performed by a processor.

7. An image transmission and control device based on dynamic EQ compensation and nuclear radiation resistance, characterized in that, include: The first determining module is used to transmit second test pulse signals of different frequencies through unshielded twisted pair cables in a nuclear radiation-free testing environment, and to perform loss analysis on the transmitted second test pulse signals, and determine the initial conductor loss coefficient and initial dielectric loss coefficient of the unshielded twisted pair cables based on the loss analysis results. In a nuclear radiation testing environment, second test pulse signals of different frequencies are transmitted through the unshielded twisted pair cable, and loss analysis is performed on the transmitted second test pulse signals. Based on the results of the loss analysis, multiple sets of loss coefficients for the unshielded twisted pair cable are determined. Each set of loss coefficients includes a test conductor loss coefficient and a test dielectric loss coefficient. Based on the intensity values ​​of various types of nuclear radiation in the environment where the unshielded twisted pair cable is located, the multiple sets of loss coefficients, the initial conductor loss coefficient, and the initial dielectric loss coefficient, the first conductor loss coefficient and the first dielectric loss coefficient of the unshielded twisted pair cable are determined. The second determining module is used to transmit the target video signal with the added first test pulse signal through the unshielded twisted pair cable, and to determine the second conductor loss coefficient and the second dielectric loss coefficient of the unshielded twisted pair cable based on the loss of the first test pulse signal in the transmitted target video signal. The fusion module is used to fuse the first conductor loss coefficient and the second conductor loss coefficient to obtain a third conductor loss coefficient; and to fuse the first dielectric loss coefficient and the second dielectric loss coefficient to obtain a third dielectric loss coefficient. The third determining module is used to determine the cable attenuation coefficient of the unshielded twisted pair based on the signal frequency of the target video signal, the third conductor loss coefficient, and the third dielectric loss coefficient, according to a preset composite attenuation model; and The equalization compensation module is used to calculate the amplitude attenuation factor of the unshielded twisted pair based on the cable attenuation coefficient and a preset cable transmission function, and to perform equalization compensation on the target video signal transmitted through the unshielded twisted pair based on the amplitude attenuation factor.

8. The apparatus according to claim 7, characterized in that, The first determining module is specifically used for: Based on the intensity values ​​of various types of nuclear radiation in the environment where the unshielded twisted pair is located, the multiple sets of loss coefficients, the initial conductor loss coefficient, and the initial dielectric loss coefficient, the first conductor loss coefficient of the unshielded twisted pair is calculated using the first formula. The first formula is: ； Where, k 11 x0 is the first conductor loss factor of the unshielded twisted pair cable; x0 is the initial conductor loss factor of the unshielded twisted pair cable in a nuclear radiation-free environment; I i x represents the intensity value of type i nuclear radiation; i , is a constant term representing the intensity value of the i-th type of nuclear radiation, and the constant term belongs to a preset value; n is the number of types of nuclear radiation in the environment where the unshielded twisted pair is located; Based on the intensity values ​​of various types of nuclear radiation in the environment where the unshielded twisted pair is located, the multiple sets of loss coefficients, the initial conductor loss coefficient, and the initial dielectric loss coefficient, the first dielectric loss coefficient of the unshielded twisted pair is calculated using a second formula; wherein the second formula is: ； Where, k 21 y0 is the first dielectric loss coefficient of the unshielded twisted pair; y0 is the initial dielectric loss coefficient of the unshielded twisted pair in a nuclear radiation-free environment; I i x represents the intensity value of type i nuclear radiation; i is a constant term for the intensity value of the i-th type of nuclear radiation, and the constant term belongs to a preset value; n is the number of types of nuclear radiation in the environment where the unshielded twisted pair is located.

9. The apparatus according to claim 8, characterized in that, It also includes a fourth determining module, used to determine the constants in the first formula and the second formula through the following steps: Collect the test intensity values ​​of various types of nuclear radiation under the nuclear radiation test environment, set the constants in the first formula and the second formula as unknowns, substitute the test intensity values ​​of various types of nuclear radiation, the multiple sets of loss coefficients, the initial conductor loss coefficient and the initial dielectric loss coefficient into the first formula and the second formula, and solve for the constants in the first formula and the second formula.

10. An image transmission and control device based on dynamic EQ compensation and nuclear radiation resistance, characterized in that, include: processor; as well as A memory, connected to the processor, for providing the processor with instructions to perform the following processing steps: In a nuclear radiation-free testing environment, second test pulse signals of different frequencies are transmitted through unshielded twisted pair cables, and loss analysis is performed on the transmitted second test pulse signals. Based on the results of the loss analysis, the initial conductor loss coefficient and the initial dielectric loss coefficient of the unshielded twisted pair cables are determined. In a nuclear radiation testing environment, second test pulse signals of different frequencies are transmitted through the unshielded twisted pair cable, and loss analysis is performed on the transmitted second test pulse signals. Based on the results of the loss analysis, multiple sets of loss coefficients for the unshielded twisted pair cable are determined. Each set of loss coefficients includes the test conductor loss coefficient and the test dielectric loss coefficient. Based on the intensity values ​​of various types of nuclear radiation in the environment where the unshielded twisted pair is located, the multiple sets of loss coefficients, the initial conductor loss coefficient, and the initial dielectric loss coefficient, the first conductor loss coefficient and the first dielectric loss coefficient of the unshielded twisted pair are determined. The target video signal with the first test pulse signal added is transmitted through the unshielded twisted pair cable, and the second conductor loss coefficient and the second dielectric loss coefficient of the unshielded twisted pair cable are determined according to the loss of the first test pulse signal in the transmitted target video signal. The first conductor loss coefficient and the second conductor loss coefficient are fused together to obtain the third conductor loss coefficient; the first dielectric loss coefficient and the second dielectric loss coefficient are fused together to obtain the third dielectric loss coefficient. Based on the signal frequency of the target video signal, the third conductor loss coefficient, and the third dielectric loss coefficient, the cable attenuation coefficient of the unshielded twisted pair is determined according to a preset composite attenuation model; and Based on the cable attenuation coefficient, the amplitude attenuation factor of the unshielded twisted pair is calculated according to the preset cable transmission function, and the target video signal transmitted through the unshielded twisted pair is equalized and compensated based on the amplitude attenuation factor.

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