Infrared movement self-adaptive control method considering self-energy-taking random fluctuation

Abstract

The invention discloses an infrared machine core self-adaptive control method considering self-energy-taking random fluctuation, and relates to the technical field of power grid monitoring, and the method comprises the steps: carrying out the current induction type self-energy-taking of a power transmission line, and obtaining a DC voltage; an energy management circuit is used for collecting output power and voltage and transmitting the output power and voltage to a digital controller in the infrared movement monitoring device; and judging the output power and the voltage by using the digital controller, adjusting the operation power of the infrared movement monitoring device, and reducing a power supply dead zone. According to the invention, the output power of the self-energy-taking device and the voltage across the two ends of the energy storage capacitor are used as a judgment basis, the operation power of the infrared movement monitoring device is adjusted in real time, and the purpose of reducing the power supply dead zone is achieved; from the perspective of a monitoring device and a control mode, only fewer additional hardware circuits need to be added on an original hardware system, so that the complexity of the hardware system is reduced, the reliability of the hardware system is improved, and the application value is wider.

Description

Technical Field

[0001] The invention relates to the technical field of power grid monitoring, in particular to an infrared movement adaptive control method taking into account random fluctuations of self-collected energy. Background Art

[0002] With the continuous development of intelligent construction of power systems, more and more power equipment is installed in power systems, which increases the complexity and uncertainty of power grids. Among them, whether the operating status of power equipment is normal is directly related to whether the operation of the power system is safe. In order to understand the operating status of these power equipment in real time and respond to emergencies, more and more online real-time monitoring equipment is installed in the power system. Therefore, how to power these real-time monitoring equipment has become a major problem. Since some power equipment and monitoring devices are exposed to the wild for a long time, the regular maintenance cost of power maintenance personnel is extremely high. Therefore, compared with using only batteries for power supply, the power supply technology that captures energy from the environment to achieve self-energy for monitoring devices is more popular. According to the source of energy, self-energy technology can be roughly divided into energy from the inside of the power grid system and energy from the outside of the system. Compared with the use of solar energy, wind energy and vibration energy, the power grid itself The magnetic field energy and electric field energy are basically not affected by the environment and weather, and can provide stable and reliable energy; when the power grid is operating normally, the load current in the transmission line is usually very high, so there is an industrial frequency AC magnetic field around the transmission line, and the improved current transformer can be used to capture the magnetic field energy. This self-energy method is also called current induction energy extraction; in order to reduce losses during long-distance power transmission, the power grid generally operates at a very high voltage level, and there is a strong electric field energy in the transmission line. Therefore, the energy extraction method of capturing the electric field is also called electric field induction energy extraction; compared with the constantly changing load current, using basically stable electric field energy to power the monitoring equipment seems to be a better choice, but the output power of electric field induction energy extraction is small, and the output small AC current presents high capacitive impedance. Therefore, in order to meet the power supply needs of the infrared movement, the current induction energy extraction solution is a better choice.

[0003] However, the common solutions currently available have many shortcomings, including: due to the large range of load current variations in transmission lines, from tens of amperes to thousands of amperes, small load currents will result in output power that cannot meet the needs of monitoring equipment, resulting in a power supply dead zone; large load currents will cause the magnetic core of the energy harvesting coil to saturate and heat up or even burn out, and the induced electromotive force will be very high, posing a risk of breakdown; in response to the above shortcomings, they can be greatly improved by adding a primary-side compensation coil, optimizing the secondary-side coil design, optimizing the magnetic core design and core materials, and improving protection and processing circuits; in addition to starting with energy harvesting devices such as energy harvesting modules, processing circuits, and energy storage modules, it is also possible to start with monitoring equipment, that is, actively reducing the power demand of the monitoring equipment at the necessary stage, thereby effectively reducing the power supply dead zone. Summary of the invention

[0004] In view of the fact that when adaptively controlling the random fluctuations of self-energy extraction, in the prior art, due to the large variation range of the load current of the transmission line, a small load current will cause the output power to be unable to meet the needs of the monitoring equipment, resulting in a power supply dead zone, and a large load current will cause the magnetic core of the energy extraction coil to saturate and heat or even burn out, posing a risk of breakdown, etc., the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is how to provide an adaptive acquisition system based on the random fluctuations of self-energy extraction of an infrared movement image acquisition system, limit the amplitude of the input voltage, resist lightning current, and provide a pure and reliable DC power supply for subsequent circuits. By real-time monitoring of the output power and energy storage elements of the power supply module, and based on this, adaptively adjust the power consumption of the infrared movement, cope with the random fluctuations of self-energy extraction, reduce the power required by the movement, realize adaptive adjustment of self-energy extraction fluctuations, and effectively reduce the power supply dead zone.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] In the first aspect, an embodiment of the present invention provides an infrared movement adaptive control method taking into account random fluctuations in self-energy extraction, which includes performing current induction self-energy extraction on a transmission line to obtain a DC voltage; using an energy management circuit to collect output power and voltage and transmit them to a digital controller in an infrared movement monitoring device; using the digital controller to judge the output power and voltage, adjust the operating power of the infrared movement monitoring device, and reduce the power supply dead zone.

[0008] As a preferred solution of the infrared movement adaptive control method considering the random fluctuation of self-energy extraction described in the present invention, the infrared movement image adaptive acquisition system includes a front-end anti-impact protection circuit, a rectifier and filter circuit, a DC / DC power supply module, an energy storage capacitor, an energy management circuit and an infrared movement monitoring device.

[0009] As a preferred solution of the infrared movement adaptive control method considering the random fluctuation of self-energy extraction described in the present invention, the current induction self-energy extraction includes the following steps: when the power grid is operating normally, there is a load current on the transmission line, so there is an industrial frequency alternating magnetic field around the transmission line, and the potential is induced from the line by the energy extraction coil. The specific formula is as follows:

[0010]

[0011] φ=BA

[0012] B=μH=μdNi l

[0013] Among them, V1 is the AC voltage induced by the energy-taking coil; N is the number of turns of the energy-taking coil; f is the load current i l frequency; φ is the main magnetic flux of the energy-taking coil core; B is the magnetic induction intensity; A is the cross-sectional area of ​​the energy-taking coil core; μ is the equivalent magnetic permeability of the core; H is the magnetic field intensity; d is the total magnetic path length; i l The front-end anti-shock protection circuit is used to limit the amplitude of the input voltage to resist lightning current. The AC voltage V1 induced by the energy-taking coil first passes through the front-end anti-shock protection circuit, and then passes through the rectifier and filter circuit to rectify the AC voltage into a DC voltage V DC After filtering; using the DC / DC power supply module to convert the DC voltage V DC The voltages are converted into voltages that meet the power supply requirements of the energy storage capacitor and the infrared core monitoring device, respectively, and the energy management circuit is used to supply power to the infrared core monitoring device and store energy.

[0014] As a preferred solution of the infrared movement adaptive control method considering random fluctuations of self-energy extraction described in the present invention, wherein: the output power is the output power of the DC / DC power supply module; and the voltage is the output voltage across the energy storage capacitor.

[0015] As a preferred solution of the infrared movement adaptive control method considering random fluctuations of self-powered energy of the present invention, wherein: the output power and the voltage are judged including the output power P of the DC / DC power module out Greater than or equal to the power threshold P th And the output power P of the DC / DC power module out Less than the power threshold P th .

[0016] As a preferred solution of the infrared movement adaptive control method considering the random fluctuation of self-powered energy of the present invention, the output power P of the DC / DC power supply module is: out Greater than or equal to the power threshold P th The following steps are included: if the output power P of the DC / DC power supply module out Greater than or equal to the power threshold P th , the infrared core monitoring device operates at full power and executes the next step; determining the output voltage V at both ends of the energy storage capacitor out Is it greater than or equal to the voltage threshold V th , if the output voltage V out Greater than or equal to the voltage threshold V th , the DC / DC power module only supplies power to the infrared core monitoring device, and the infrared core monitoring device operates at full power; if the output voltage V out Less than the voltage threshold V th, the DC / DC power module supplies power to the infrared core monitoring device, the infrared core monitoring device operates at full power, and charges the energy storage capacitor until the output voltage V out Rising to the voltage threshold V th .

[0017] As a preferred solution of the infrared movement adaptive control method considering the random fluctuation of self-powered energy of the present invention, the output power P of the DC / DC power supply module is: out Less than the power threshold P th The following steps are included: if the output power P of the DC / DC power supply module out Less than the power threshold P th , the DC / DC power supply module cannot guarantee the normal operation of the infrared movement monitoring device, the energy storage capacitor will power the infrared movement monitoring device, and the next step is to determine the output voltage V at both ends of the energy storage capacitor. out Is it greater than or equal to the voltage threshold V th A1%, if the output voltage V out Greater than or equal to the voltage threshold V th A1%, the energy storage capacitor supplies power to the infrared core monitoring device, and the infrared core monitoring device operates at full power; if the output voltage V out Less than the voltage threshold V th A1%, then execute the next step; determine the output voltage V at both ends of the energy storage capacitor out Is it greater than or equal to the voltage threshold V th A2%, if the output voltage V out Greater than or equal to the voltage threshold V th A2%, the energy storage capacitor continues to power the infrared core monitoring device, but the frame rate of the output image of the infrared core monitoring device is halved; if the output voltage V out Less than the voltage threshold V th A2%, then the resolution of the output image is further reduced on the basis of halving the frame rate of the output image of the infrared core monitoring device.

[0018] On the second aspect, in order to further solve the safety problems existing in the self-energy extraction technology, the embodiment of the present invention provides an infrared movement adaptive control system that takes into account the random fluctuations of self-energy extraction, which includes: a voltage processing module, which is used to use the energy extraction coil to induce AC voltage from the transmission line, use the front-end anti-shock protection circuit to limit the amplitude of the input voltage, use the rectifier and filter circuit to rectify the AC voltage into DC voltage and filter it, and use the DC / DC power supply module to convert the DC voltage into voltages that meet the energy storage capacitor and the infrared movement monitoring device respectively; a data acquisition module, which is used to use the energy management circuit to collect the output power of the DC / DC power supply module and the output voltage at both ends of the energy storage capacitor and transmit them to the digital controller in the infrared movement monitoring device; a power adjustment module, which is used to use the digital controller to judge the output power and voltage, adjust the operating power of the infrared movement monitoring device, reduce the power consumption of the infrared movement monitoring device, and reduce the power supply dead zone.

[0019] In a third aspect, an embodiment of the present invention provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, wherein: when the computer program is executed by the processor, any step of an infrared movement adaptive control method taking into account random fluctuations in self-energy as described in the first aspect of the present invention is implemented.

[0020] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program is executed by a processor, it implements any step of an infrared movement adaptive control method taking into account random fluctuations in self-energy as described in the first aspect of the present invention.

[0021] The beneficial effects of the present invention are as follows: the present invention proposes an adaptive control method taking into account the random fluctuations of self-energy extraction, takes the output power of the self-energy extraction device and the voltage across the energy storage capacitor as the basis for judgment, and adjusts the operating power of the infrared movement monitoring device in real time, thereby coping with the random fluctuations of self-energy extraction and achieving the purpose of reducing the power supply dead zone; from the perspective of the monitoring device and the control method, the power supply dead zone is reduced, the existing algorithm is improved, and only a small amount of additional hardware circuits need to be added to the original hardware system, which reduces the complexity of the hardware system, improves the reliability of the hardware system, and has a broader application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0023] Figure 1This is a system block diagram of the current induction self-energy extraction of the infrared movement monitoring device in Example 1.

[0024] Figure 2 This is a flow chart of the adaptive control method for random fluctuations of self-energy extraction of the present invention in Example 1. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides an infrared movement adaptive control method considering random fluctuations of self-collected energy, comprising the following steps:

[0030] S1: Perform current induction self-energy extraction on the transmission line to obtain DC voltage.

[0031] Preferably, the infrared movement image adaptive acquisition system includes a front-end anti-shock protection circuit, a rectifier and filter circuit, a DC / DC power supply module, an energy storage capacitor, an energy management circuit and an infrared movement monitoring device.

[0032] Specifically, Figure 1 The figure shows a system block diagram of a current induction self-energy extraction device for an infrared movement monitoring device. The current induction self-energy extraction includes the following steps: When the power grid is operating normally, there is a load current on the transmission line, so there is an industrial frequency alternating magnetic field around the transmission line. The energy extraction coil can be used to directly induce the potential from the line. The specific formula is as follows:

[0033]

[0034] φ=BA

[0035] B=μH=μdNil

[0036] Among them, V1 is the AC voltage induced by the energy-taking coil; N is the number of turns of the energy-taking coil; f is the load current i l frequency, i.e. 50Hz; φ is the main magnetic flux of the energy taking coil core; B is the magnetic induction intensity; A is the cross-sectional area of ​​the energy taking coil core; μ is the equivalent magnetic permeability of the core; H is the magnetic field intensity; d is the total magnetic path length; i l is the load current, load current i l It directly determines the AC voltage V1, and thus determines the power.

[0037] In order to ensure the safety of subsequent circuits, the front-end anti-shock protection circuit is used to limit the amplitude of the input voltage and resist lightning current. The AC voltage V1 induced by the energy-taking coil first passes through the front-end anti-shock protection circuit, and then passes through the rectifier and filter circuit to rectify the AC voltage into a DC voltage V DC After filtering, it provides high-quality DC voltage for subsequent circuits.

[0038] Use the DC / DC power module to convert the DC voltage V DC The voltages are converted into voltages that meet the power supply requirements of the energy storage capacitor and the infrared movement monitoring device, and the energy management circuit is used to supply power to the infrared movement monitoring device and store energy.

[0039] Specifically, by introducing a method of obtaining energy from a transmission line using a current induction coil, the difficulties of wiring and maintenance are avoided, autonomous power supply is achieved, and the AC voltage is converted by utilizing a front-end anti-shock protection circuit, a rectifier and filter circuit, and a DC / DC power supply module to provide a stable and reliable DC voltage for subsequent circuits.

[0040] S2: The output power and voltage are collected by the energy management circuit and transmitted to the digital controller in the infrared movement monitoring device.

[0041] Preferably, the output power is the output power of a DC / DC power supply module.

[0042] Preferably, the voltage is the output voltage across the energy storage capacitor.

[0043] S3: Use the digital controller to judge the output power and voltage, adjust the operating power of the infrared movement monitoring device, and reduce the power supply dead zone.

[0044] Preferably, Figure 2 The figure shows the process of the adaptive control method for random fluctuation of self-collected energy proposed by the present invention, which determines the output power and voltage including the output power P of the DC / DC power module. out Greater than or equal to the power threshold P th And the output power P of the DC / DC power moduleout Less than the power threshold P th .

[0045] Specifically, the output power P of the DC / DC power module out Greater than or equal to the power threshold P th The following steps are included: If the output power P of the DC / DC power module out Greater than or equal to the power threshold P th , the infrared core monitoring device operates at full power and executes the next step, where the load current i l The larger the output power P out The bigger.

[0046] Determine the output voltage V across the energy storage capacitor out Is it greater than or equal to the voltage threshold V th , if the output voltage V out Greater than or equal to the voltage threshold V th , the DC / DC power module only supplies power to the infrared movement monitoring device, and the infrared movement monitoring device operates at full power.

[0047] If the output voltage V out Less than the voltage threshold V th , the DC / DC power module supplies power to the infrared core monitoring device, the infrared core monitoring device operates at full power, and charges the energy storage capacitor until the output voltage V out Rising to the voltage threshold V th .

[0048] Specifically, the output power P of the DC / DC power module out Less than the power threshold P th The following steps are included: If the output power P of the DC / DC power module out Less than the power threshold P th , the DC / DC power supply module cannot guarantee the normal operation of the infrared movement monitoring device, the energy storage capacitor will power the infrared movement monitoring device and execute the next step.

[0049] Determine the output voltage V across the energy storage capacitor out Is it greater than or equal to the voltage threshold V th 50%, if the output voltage V out Greater than or equal to the voltage threshold V th 50%, the energy storage capacitor supplies power to the infrared movement monitoring device, and the infrared movement monitoring device operates at full power.

[0050] If the output voltage V out Less than the voltage threshold V th If the result is 50%, proceed to the next step.

[0051] Determine the output voltage V across the energy storage capacitor out Is it greater than or equal to the voltage threshold V th 30%, if the output voltage V out Greater than or equal to the voltage threshold V th 30%, the energy storage capacitor continues to power the infrared movement monitoring device, but the frame rate of the output image of the infrared movement monitoring device is halved, reducing the power consumption of the infrared movement monitoring device.

[0052] If the output voltage V out Less than the voltage threshold V th 30%, then on the basis of halving the frame rate of the output image of the infrared movement monitoring device, the resolution of the output image is further reduced, so as to realize low-power operation of the infrared movement monitoring device, thereby reducing the lower limit of the energy required by the equipment and achieving the goal of reducing the power supply dead zone.

[0053] Specifically, in view of the situation that traditional solutions in the wireless power supply scenario of transmission lines are easily interrupted when power fluctuates, the output power and voltage are detected and the movement working mode is adjusted in stages, including full power, reduced frame rate and reduced resolution, so that the device can operate with low power consumption even at low power, reducing the power supply dead zone, greatly expanding the working range, avoiding monitoring interruptions, and improving availability.

[0054] The present embodiment also provides an infrared movement adaptive control system that takes into account random fluctuations in self-energy extraction, including: a voltage processing module, which is used to use an energy extraction coil to induce an AC voltage from a transmission line, use a front-end anti-shock protection circuit to limit the amplitude of the input voltage, use a rectifier and filter circuit to rectify the AC voltage into a DC voltage and filter it, and use a DC / DC power supply module to convert the DC voltage into voltages that meet the requirements of the energy storage capacitor and the infrared movement monitoring device respectively; a data acquisition module, which is used to use an energy management circuit to collect the output power of the DC / DC power supply module and the output voltage at both ends of the energy storage capacitor and transmit them to a digital controller in the infrared movement monitoring device; a power adjustment module, which is used to use a digital controller to judge the output power and voltage, adjust the operating power of the infrared movement monitoring device, reduce the power consumption of the infrared movement monitoring device, and reduce the power supply dead zone.

[0055] This embodiment also provides a computer device, which is suitable for a method for adaptively controlling an infrared movement taking into account random fluctuations in self-energy extraction, and includes: a memory and a processor; the memory is used to store computer executable instructions, and the processor is used to execute computer executable instructions to implement a method for adaptively controlling an infrared movement taking into account random fluctuations in self-energy extraction as proposed in the above embodiment.

[0056] The computer device may be a terminal, and the computer device includes a processor, a memory, a communication interface, a display screen and an input device connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. The display screen of the computer device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device may be a touch layer covering the display screen, or a key, trackball or touchpad provided on the housing of the computer device, or an external keyboard, touchpad or mouse, etc.

[0057] The present embodiment also provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements an infrared movement adaptive control method taking into account random fluctuations in self-collected energy as proposed in the above embodiment; the storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, disk or optical disk.

[0058] In summary, the present invention proposes an adaptive control method which takes into account the random fluctuations of self-energy extraction, takes the output power of the self-energy extraction device and the voltage across the energy storage capacitor as the basis for judgment, and adjusts the operating power of the infrared movement monitoring device in real time, thereby coping with the random fluctuations of self-energy extraction and achieving the purpose of reducing the power supply dead zone; from the perspective of the monitoring device and the control method, the power supply dead zone is reduced, the existing algorithm is improved, and only a small amount of additional hardware circuits need to be added to the original hardware system, which reduces the complexity of the hardware system, improves the reliability of the hardware system, and has a broader application value.

[0059] Example 2

[0060] Referring to Table 1 and Table 2, a second embodiment of the present invention is shown. This embodiment is different from the first embodiment in that, in order to verify its beneficial effects, operating data and related instructions of the present invention in an actual environment are provided.

[0061] This example simulates different scenarios during actual operation by setting different load currents, including 20A, 80A, 160A, 320A, and 600A. An oxygen-free copper wire with a diameter of 0.8mm is selected as the energy-taking coil, with 500 turns. The core of the energy-taking coil is made of nanocrystalline alloy material with a cross-sectional area of ​​2cm. 2 , and then use the front-end anti-shock protection circuit, rectifier filter circuit and DC / DC power supply module to convert the AC voltage to obtain a stable and reliable DC voltage, and then monitor the output power of the DC / DC power supply module and the output voltage at both ends of the energy storage capacitor. The specific data are shown in Table 1.

[0062] Table 1 Output power and output voltage data table

[0063] Experimental subjects Load current(A) Output power(W) Output voltage(V) 1 20 1.2 3.8 2 80 3.8 6.2 3 160 7.5 9.6 4 320 13.2 10.2 ... ... ... ... n 600 22.8 10.8

[0064] According to the output power of the DC / DC power module and the output voltage at both ends of the energy storage capacitor, a threshold judgment is made, and then the operating power and power supply source of the infrared movement monitoring device are adjusted. Table 2 is an operating power table of the infrared movement monitoring device. When the output power is greater than or equal to the power threshold, the DC / DC power module is used for power supply, the infrared movement monitoring device operates at full power, and the energy storage capacitor is additionally charged when the output voltage is less than the voltage threshold; when the output power is less than the power threshold, the energy storage capacitor is used to power the infrared movement monitoring device, and when the output voltage is less than 50% and 30% of the voltage threshold, the frame rate of the output image of the infrared movement monitoring device is halved and the resolution of the output image is reduced, respectively, to achieve low-power operation of the infrared movement monitoring device and reduce the power supply dead zone.

[0065] Table 2 Operating power table of infrared movement monitoring device

[0066] Experimental subjects Frame rate (fps) Resolution (megapixels) Working Mode 1 15 1.2 Low power consumption 2 15 2.1 Low power consumption 3 30 2.1 Full power 4 30 2.1 Full power ... ... ... ... n 30 2.1 Full power

[0067] As can be seen from the above table, the present invention adopts a graded adjustment movement working mode to maintain the frame rate and resolution unchanged at full power and gradually reduce the frame rate and resolution at low power consumption. This shows that the present invention uses the output power of the self-energy device and the voltage across the energy storage capacitor as the basis for judgment to adjust the operating power of the infrared movement monitoring device in real time, thereby reducing the power supply dead zone and having a broader application value.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An infrared movement adaptive control method considering random fluctuations of self-collected energy, characterized in that: include: Conduct current induction self-energy extraction on the transmission line to obtain DC voltage; The output power and voltage are collected by the energy management circuit and transmitted to the digital controller in the infrared movement monitoring device; The digital controller is used to judge the output power and the voltage, and the operating power of the infrared core monitoring device is adjusted to reduce the power supply dead zone.

2. The infrared movement adaptive control method considering random fluctuations of self-collected energy as claimed in claim 1, characterized in that: The infrared movement image adaptive acquisition system includes a front-end anti-shock protection circuit, a rectifier and filter circuit, a DC / DC power supply module, an energy storage capacitor, an energy management circuit and an infrared movement monitoring device.

3. The infrared movement adaptive control method considering random fluctuation of self-collection energy as claimed in claim 2, characterized in that: The current induction self-energy extraction method comprises the following steps: When the power grid is operating normally, there is a load current on the transmission line, so there is an industrial frequency alternating magnetic field around the transmission line. The potential is induced from the line using the energy extraction coil. The specific formula is as follows: φ=BA B=μH=μdNi l Among them, V1 is the AC voltage induced by the energy-taking coil; N is the number of turns of the energy-taking coil; f is the load current i l frequency; φ is the main magnetic flux of the energy-taking coil core; B is the magnetic induction intensity; A is the cross-sectional area of ​​the energy-taking coil core; μ is the equivalent magnetic permeability of the core; H is the magnetic field intensity; d is the total magnetic path length; i l is the load current; The front-end anti-shock protection circuit is used to limit the amplitude of the input voltage and resist lightning current. The AC voltage V1 induced by the energy-taking coil first passes through the front-end anti-shock protection circuit, and then passes through the rectifier and filter circuit to rectify the AC voltage into a DC voltage V DC Then filter; The DC / DC power supply module is used to convert the DC voltage V DC The voltages are converted into voltages that meet the power supply requirements of the energy storage capacitor and the infrared core monitoring device, respectively, and the energy management circuit is used to supply power to the infrared core monitoring device and store energy.

4. The infrared movement adaptive control method considering random fluctuation of self-collected energy as claimed in claim 3, characterized in that: The output power is the output power of the DC / DC power supply module; The voltage is the output voltage across the energy storage capacitor.

5. The infrared movement adaptive control method considering random fluctuation of self-collected energy as claimed in claim 4, characterized in that: The output power and the voltage are judged including the output power P of the DC / DC power module. out Greater than or equal to the power threshold P th And the output power P of the DC / DC power module out Less than the power threshold P th .

6. The infrared movement adaptive control method considering random fluctuation of self-collected energy as claimed in claim 5, characterized in that: The output power P of the DC / DC power supply module out Greater than or equal to the power threshold P th The following steps are involved: If the output power P of the DC / DC power module out Greater than or equal to the power threshold P th , the infrared movement monitoring device operates at full power and executes the next step; Determine the output voltage V at both ends of the energy storage capacitor out Is it greater than or equal to the voltage threshold V th , if the output voltage V out Greater than or equal to the voltage threshold V th , then the DC / DC power module only supplies power to the infrared movement monitoring device, and the infrared movement monitoring device operates at full power; If the output voltage V out Less than the voltage threshold V th , the DC / DC power module supplies power to the infrared core monitoring device, the infrared core monitoring device operates at full power, and charges the energy storage capacitor until the output voltage V out Rising to the voltage threshold V th .

7. The infrared movement adaptive control method considering random fluctuation of self-collected energy as claimed in claim 6, characterized in that: The output power P of the DC / DC power supply module out Less than the power threshold P th The following steps are involved: If the output power P of the DC / DC power module out Less than the power threshold P th , the DC / DC power module cannot guarantee the normal operation of the infrared movement monitoring device, the energy storage capacitor will power the infrared movement monitoring device, and execute the next step; Determine the output voltage V at both ends of the energy storage capacitor out Is it greater than or equal to the voltage threshold V th A1%, if the output voltage V out Greater than or equal to the voltage threshold V th A1%, the energy storage capacitor supplies power to the infrared movement monitoring device, and the infrared movement monitoring device operates at full power; If the output voltage V out Less than the voltage threshold V th A1%, then proceed to the next step; Determine the output voltage V at both ends of the energy storage capacitor out Is it greater than or equal to the voltage threshold V th A2%, if the output voltage V out Greater than or equal to the voltage threshold V th A2%, the energy storage capacitor continues to supply power to the infrared core monitoring device, but the frame rate of the output image of the infrared core monitoring device is halved; If the output voltage V out Less than the voltage threshold V th A2%, then the resolution of the output image is further reduced on the basis of halving the frame rate of the output image of the infrared core monitoring device.

8. An infrared movement adaptive control system considering random fluctuations of self-collected energy, based on an infrared movement adaptive control method considering random fluctuations of self-collected energy as claimed in any one of claims 1 to 7, characterized in that: include, The voltage processing module is used to use the energy-taking coil to induce the AC voltage from the transmission line, use the front-end anti-shock protection circuit to limit the amplitude of the input voltage, use the rectifier and filter circuit to rectify the AC voltage into a DC voltage and filter it, and use the DC / DC power supply module to convert the DC voltage into voltages that meet the requirements of the energy storage capacitor and the infrared movement monitoring device; A data acquisition module, used to collect the output power of the DC / DC power module and the output voltage across the energy storage capacitor using the energy management circuit and transmit them to the digital controller in the infrared movement monitoring device; The power adjustment module is used to use a digital controller to judge the output power and voltage, adjust the operating power of the infrared movement monitoring device, reduce the power consumption of the infrared movement monitoring device, and reduce the power supply dead zone.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the infrared movement adaptive control method taking into account the random fluctuation of self-energy extraction as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of an infrared movement adaptive control method taking into account random fluctuations in self-powered energy as described in any one of claims 1 to 7 are implemented.

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