Flexible ultrasonic sensor deicing system

Abstract

The utility model relates to the technical field of ultrasonic sensors, and discloses a flexible ultrasonic sensor deicing system. The flexible ultrasonic sensor deicing system is used for deicing the power transmission line. Firstly, ultrasonic waves are excited through a flexible ultrasonic sensor which is sleeved on a power transmission line in a surrounding manner, and a signal acquisition and processing module which is connected with the flexible ultrasonic sensor acquires the ultrasonic waves and performs signal processing to obtain echo amplitude. Then, a controller connected with the signal acquisition and processing module compares the echo amplitude with an icing threshold value, determines an excitation mode (a sleep monitoring excitation mode and a deicing excitation mode) according to a comparison result, and excites the flexible ultrasonic sensor based on the excitation mode; the flexible ultrasonic sensor deicing system can automatically detect the icing condition of the power transmission line, selects different excitation modes according to the icing state in real time, realizes intelligent deicing, is more convenient to use, and ensures the deicing reliability of the power transmission line.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic sensors, in particular to a flexible ultrasonic sensor deicing system. Background Art

[0002] In rainy, freezing, snowy, and icy weather conditions, overhead transmission lines often freeze. Icing on overhead transmission lines can cause conductor swaying, ice flashover tripping, line breakage, pole (or tower) collapse, and communication interruptions.

[0003] In the related art, a pulley is used to control an ultrasonic deicing device to de-ice long-distance power transmission lines. However, due to the large size and high height of the power transmission lines, the pulley control method becomes more inconvenient in severe weather such as rain or snow. Utility Model Content

[0004] The embodiments of this specification aim to solve at least one of the technical problems in the related art to a certain extent. To this end, the embodiments of this specification propose a flexible ultrasonic sensor deicing system.

[0005] The embodiments of this specification provide a flexible ultrasonic sensor deicing system, which is used to de-ice transmission lines. The system includes:

[0006] A flexible ultrasonic sensor is sheathed around the transmission line and is used to excite ultrasonic waves;

[0007] a signal acquisition and processing module, connected to the flexible ultrasonic sensor, for acquiring the ultrasonic waves and performing signal processing on the ultrasonic waves to obtain the echo amplitude;

[0008] A controller connected to the signal acquisition and processing module, configured to compare the echo amplitude with an ice threshold and output an excitation signal according to the comparison result;

[0009] The excitation module is connected to the controller and the flexible ultrasonic sensor, and is used to determine an excitation mode according to the excitation signal and excite the flexible ultrasonic sensor based on the excitation mode.

[0010] In one embodiment, the excitation signal includes a de-icing signal, and the excitation mode includes a de-icing excitation mode:

[0011] The controller is configured to output the de-icing signal when the echo amplitude is greater than the ice coverage threshold;

[0012] The excitation module is used to determine the deicing excitation mode according to the deicing signal, and excite the flexible ultrasonic sensor based on the deicing excitation mode, wherein the deicing excitation mode includes a deicing excitation voltage, a deicing driving cycle, and a deicing detection cycle;

[0013] The flexible ultrasonic sensor is used to excite deicing ultrasonic waves based on the deicing excitation pattern.

[0014] In one embodiment, the excitation signal includes a sleep monitoring signal, and the excitation mode includes an excitation mode other than the sleep monitoring excitation mode:

[0015] The controller is configured to output the sleep monitoring signal when the echo amplitude is less than the ice coverage threshold;

[0016] The excitation module is used to determine the sleep monitoring excitation mode according to the sleep monitoring signal, and excite the flexible ultrasonic sensor based on the sleep monitoring excitation mode, wherein the sleep monitoring excitation mode includes a sleep monitoring excitation voltage, a sleep monitoring driving period, and a sleep monitoring detection period;

[0017] The flexible ultrasonic sensor is used to excite the sleep monitoring ultrasonic wave based on the sleep monitoring excitation pattern.

[0018] In one embodiment, there are a plurality of flexible ultrasonic sensors, which are wrapped around the power transmission line at preset intervals and used to excite the ultrasonic waves.

[0019] The system also includes a channel control module, which is connected to the multiple flexible ultrasonic sensors and is used to control at least one of the multiple flexible ultrasonic sensors to excite the ultrasonic wave; wherein the ultrasonic wave includes a sleep monitoring ultrasonic wave and a de-icing ultrasonic wave.

[0020] In one embodiment, the channel control module is connected to the plurality of flexible ultrasonic sensors and the excitation module, and is configured to excite at least one of the flexible ultrasonic sensors based on the excitation pattern.

[0021] In one embodiment, the system further comprises:

[0022] a communication terminal connected to the controller and configured to send the echo amplitude to a host computer;

[0023] The host computer is connected to the communication terminal and is used to output ice thickness information according to the ice thickness-echo amplitude curve.

[0024] In one embodiment, the flexible ultrasonic sensor is connected to a cassette, the cassette is connected to a buckle, the flexible ultrasonic sensor is looped around the power transmission line through the cassette, and the flexible ultrasonic sensor is fixed to the power transmission line through the buckle.

[0025] In one embodiment, the flexible ultrasonic sensor comprises:

[0026] curved surface molds;

[0027] a flexible substrate, wherein a first side of the flexible substrate is connected to the curved mold;

[0028] A piezoelectric ceramic sheet, wherein a first side of the piezoelectric ceramic sheet is connected to a second side of the flexible substrate via a conductive adhesive, wherein the piezoelectric ceramic sheet is divided into a plurality of array elements, and a scribe groove is defined between adjacent array elements, and the scribe groove is filled with epoxy resin adhesive;

[0029] The metal upper electrode is arranged on the second side of the piezoelectric ceramic sheet, and the metal upper electrode is point-connected to the upper electrode Pad on the flexible substrate.

[0030] In one embodiment, the flexible ultrasonic sensor is obtained by:

[0031] The piezoelectric ceramic sheet is placed on a flexible substrate via a conductive adhesive;

[0032] The piezoelectric ceramic sheet is divided into a plurality of array elements and discretely arranged on a flexible substrate; wherein a scribing groove is provided between adjacent array elements;

[0033] Filling the scribe lines with epoxy resin glue;

[0034] The flexible substrate is fixed on the curved mold and a metal upper electrode is sputtered on the other end of the array element;

[0035] The metal upper electrode is connected to the upper electrode Pad point on the flexible substrate, and the upper electrode Pad point is connected to the welding line; the lower electrode Pad point on the flexible substrate is connected to the welding line;

[0036] The flexible ultrasonic sensor is packaged using a flexible packaging material to form the flexible ultrasonic sensor.

[0037] In the above-mentioned embodiment of the specification, the flexible ultrasonic sensor de-icing system is used to de-ice transmission lines. First, ultrasonic waves are excited by a flexible ultrasonic sensor that is wrapped around the transmission line. A signal acquisition and processing module connected to the flexible ultrasonic sensor collects the ultrasonic waves and processes the ultrasonic waves to obtain the echo amplitude. Then, a controller connected to the signal acquisition and processing module compares the echo amplitude with the ice coverage threshold and determines the excitation mode (two modes: sleep monitoring excitation mode and de-icing excitation mode) based on the comparison result. The flexible ultrasonic sensor de-icing system can automatically detect the ice coverage of the transmission line and select different excitation modes in real time according to the ice coverage status, realizing intelligent de-icing and being more convenient to use. It ensures the reliability and safety of de-icing of the transmission line under severe weather conditions. In addition, the flexible ultrasonic sensor has a wide range of applicability in applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of a flexible ultrasonic sensor de-icing system provided in accordance with an embodiment of this specification;

[0039] Figure 2 A schematic diagram of a flexible ultrasonic sensor de-icing system provided in accordance with an embodiment of this specification;

[0040] Figure 3a A schematic diagram of multiple flexible ultrasonic sensors provided in an embodiment of this specification;

[0041] Figure 3b A schematic diagram of a flexible ultrasonic sensor de-icing system provided in accordance with an embodiment of this specification;

[0042] Figure 4 A schematic diagram of a flexible ultrasonic sensor de-icing system provided in accordance with an embodiment of this specification;

[0043] Figure 5 A schematic diagram of a fixed flexible ultrasonic sensor provided in an embodiment of this specification;

[0044] Figure 6 A schematic diagram of materials included in the flexible ultrasonic sensor provided in an embodiment of this specification;

[0045] Figure 7a A schematic diagram of a process for obtaining a flexible ultrasonic sensor provided in an embodiment of this specification;

[0046] Figure 7b A schematic diagram of preparing a flexible ultrasonic sensor provided in an embodiment of this specification;

[0047] Figure 7c A schematic diagram of preparing a flexible ultrasonic sensor provided in an embodiment of this specification;

[0048] Figure 7d A schematic diagram of preparing a flexible ultrasonic sensor provided in an embodiment of this specification;

[0049] Figure 7e A schematic diagram of preparing a flexible ultrasonic sensor provided in an embodiment of this specification;

[0050] Figure 7f A schematic diagram of preparing a flexible ultrasonic sensor provided in an embodiment of this specification;

[0051] Figure 7g A schematic diagram of preparing a flexible ultrasonic sensor provided in an embodiment of this specification;

[0052] Figure 7h A schematic diagram of a piezoelectric ceramic array provided in an embodiment of this specification;

[0053] Figure 8 A schematic diagram of a flow chart of a deicing method based on a flexible ultrasonic sensor provided in an embodiment of this specification;

[0054] Figure 9 A schematic diagram of a process for exciting de-icing ultrasonic waves using a flexible ultrasonic sensor provided in an embodiment of this specification;

[0055] Figure 10 A schematic diagram of the process of exciting dormancy monitoring ultrasound of a flexible ultrasonic sensor provided in an embodiment of this specification;

[0056] Figure 11 A schematic diagram of a de-icing device based on a flexible ultrasonic sensor provided in an embodiment of this specification;

[0057] Figure 12 This is a diagram of the internal structure of a computer device provided in accordance with an embodiment of this specification. DETAILED DESCRIPTION

[0058] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0059] During rainy, freezing, snowy, and icy conditions, overhead transmission lines often freeze. Icing on these lines can cause conductor swaying, ice flashover tripping, line breakage, pole (or tower) collapse, and communication interruptions. Severe icing can jeopardize the safe operation of 500kV and even 1000kV transmission lines.

[0060] During the harsh winter and early spring, especially in the Yunnan-Guizhou Plateau, Sichuan-Shaanxi region, and the two lakes region, rime and rime often occur, making overhead transmission lines more susceptible to ice formation, thus impacting the stability of power supply and service quality. Furthermore, transmission lines in high-altitude and cold regions are often damaged by ice and snow during winter, often resulting in severe power outages. Repair work in these regions is difficult, time-consuming, and affects large areas.

[0061] The convergence of cold air currents and warm, humid air currents resulted in low-temperature rain and snow, triggering ice disasters. These conditions led to severe ice buildup on overhead transmission lines, with average ice thickness exceeding 30 mm and some reaching over 100 mm, far exceeding the design standard of 10 mm. Line icing incidents posed a serious threat to the power grid and caused significant economic and financial losses. Therefore, finding a more effective way to melt and de-ice transmission lines is crucial.

[0062] Because the adhesion normal stress between transmission lines and ice accumulation is greater than the adhesion shear stress between them, de-icing is significantly beneficial from the perspective of adhesion shear stress. Ultrasonic transducers are used to excite Lamb waves on transmission lines. These waves can induce both normal and shear stresses, generating both out-of-plane and in-plane displacements on the line surface. By stimulating the maximum de-icing shear stress of Lamb waves at a given power level, the adhesion shear stress between ice accumulation and the line is overcome, ultimately achieving the de-icing goal. De-icing technology using ultrasonic transducers also offers the advantages of low power consumption, low cost, lightweight construction, simple structure, and high reliability.

[0063] In the related art, the ultrasonic deicing device for high-voltage transmission lines includes a double pulley clamping system, an ultrasonic deicing system, and a power system. First, the transmission line to be deiced is determined, and then the thickness and natural frequency of the ice on the transmission line to be deiced are determined. Next, the distance between the upper pulley axle and the lower pulley axle is adjusted according to the thickness of the ice, and the entire device is controlled to move to the transmission line to be deiced. The entire device is moved to the position to be deiced, and the ultrasonic transducer of the ultrasonic deicing system emits Lamb waves and SH waves to the ice through the ultrasonic transmitting end according to the fixed frequency of the ice. The above embodiment realizes deicing of transmission lines over long distances by means of pulleys. However, due to the large size and high height of the transmission lines, it becomes more inconvenient to use pulley control in severe weather such as rain and snow.

[0064] In related technologies, ultrasonic deicing devices include an ultrasonic generator and an insulating rod. The ultrasonic generator is mounted within the insulating rod and transmits ultrasonic waves to the icing equipment, effectively removing ice. Compared to traditional manual deicing methods, ultrasonic deicing devices can overcome the inefficiency of traditional manual deicing methods and achieve highly effective deicing. However, the above-mentioned implementation is not suitable for deicing high-voltage transmission lines.

[0065] In the related art, an ultrasonic de-icing device for wires includes a tension spring, a hanging ring, an insulating sleeve, a de-icing pliers handle, rivets, screws, a DC-powered ultrasonic generator, a de-icing pliers head, and an ultrasonic acoustic system. The de-icing pliers handle and the de-icing pliers head are connected to form a single-piece pliers body, which is connected by a rivet. The right ends of the two de-icing pliers handles are connected by a tension spring and a hanging ring, and the left ends of the two de-icing pliers heads are each equipped with an ultrasonic acoustic system. The ultrasonic acoustic system includes an electrode, a sandwich piezoelectric transducer, a variable amplitude rod, a flange, and a first and second bolts on the tool head. The sandwich piezoelectric transducer and the variable amplitude rod are connected by the second bolt, the variable amplitude rod and the tool head are connected by the first bolt, the sandwich piezoelectric transducer is connected to the ultrasonic generator via the electrode, and the two variable amplitude rods are connected to the left ends of the two de-icing pliers heads by screws. The above embodiment is used for manual de-icing, but it is inconvenient to use in inclement weather such as rain or snow.

[0066] Based on this, the embodiment of this specification provides a flexible ultrasonic sensor de-icing system. The flexible ultrasonic sensor de-icing system is used to de-ice transmission lines. First, ultrasonic waves are excited by a flexible ultrasonic sensor that is wrapped around the transmission line. The signal acquisition and processing module connected to the flexible ultrasonic sensor collects the ultrasonic waves and processes the ultrasonic waves to obtain the echo amplitude. Then, the controller connected to the signal acquisition and processing module compares the echo amplitude with the ice threshold, and determines the excitation mode (two modes: sleep monitoring excitation mode and de-icing excitation mode) based on the comparison result, and excites the flexible ultrasonic sensor based on the excitation mode. The above-mentioned flexible ultrasonic sensor de-icing system can automatically detect the ice coverage of the transmission line and select different excitation modes in real time according to the ice coverage status, thereby realizing intelligent de-icing and being more convenient to use, ensuring the reliability and safety of de-icing of the transmission line under severe weather conditions, and the flexible ultrasonic sensor has a wide range of applicability in applications.

[0067] This specification provides an example scenario of a flexible ultrasonic sensor de-icing system. Figure 1This flexible ultrasonic sensor de-icing system utilizes an array of 15 flexible ultrasonic sensors, designated as sensor 1, sensor 2, ..., sensor 15. The channel control module controls one or more of the 15 flexible ultrasonic sensors to activate dormant monitoring ultrasonic waves. The signal acquisition and processing module acquires and processes the dormant monitoring ultrasonic waves to obtain an echo amplitude. The microcontroller compares the echo amplitude with an ice accumulation threshold and, when the echo amplitude exceeds the ice accumulation threshold, outputs a de-icing signal. The excitation module determines a de-icing excitation pattern based on the de-icing signal. The channel control module excites one or more flexible ultrasonic sensors based on the de-icing excitation pattern. The activated flexible ultrasonic sensors activate de-icing ultrasonic waves based on the de-icing excitation pattern to remove ice. Furthermore, the echo amplitude is transmitted to a host computer via a communication terminal. The host computer then outputs ice thickness information based on an ice thickness-echo amplitude curve.

[0068] This specification provides a flexible ultrasonic sensor de-icing system 200. Figure 2 The flexible ultrasonic sensor deicing system 200 is used to de-ice transmission lines. The flexible ultrasonic sensor deicing system 200 may include: a flexible ultrasonic sensor 210, a signal acquisition and processing module 220, a controller 230 and an excitation module 240.

[0069] The flexible ultrasonic sensor 210 is sheathed around the power transmission line and is used to excite ultrasonic waves.

[0070] Specifically, the main reason for using a flexible ultrasonic sensor rather than a conventional non-flexible ultrasonic sensor is that it can be annular, allowing it to fit snugly and wrap around a power line. When the flexible ultrasonic sensor 210 is operating, an excitation voltage is applied to its upper electrode, exciting ultrasonic waves. Ultrasonic waves propagate at a specific frequency and intensity, and are used to detect the presence of ice on power lines or to remove ice from them. It should be noted that when the flexible ultrasonic sensor receives sound waves, its upper electrode is in a receiving suspended state, outputting a voltage.

[0071] The signal acquisition and processing module 220 is connected to the flexible ultrasonic sensor 210 and is used to acquire ultrasonic waves and perform signal processing on the ultrasonic waves to obtain echo amplitude.

[0072] Specifically, the signal acquisition and processing module 220 and the flexible ultrasonic sensor 210 can be connected via wireless communication or a cable. Once the signal acquisition and processing module 220 and the flexible ultrasonic sensor 210 are connected, the signal acquisition and processing module 220 collects ultrasonic waves emitted by the flexible ultrasonic sensor 210. After collecting the ultrasonic waves, the signal acquisition and processing module 220 processes the signals to obtain the echo amplitude. Alternatively, the signal acquisition and processing module 220 can be mounted on a transmission tower.

[0073] The controller 230 is connected to the signal acquisition and processing module 220 and is used to compare the echo amplitude with the ice threshold and output an excitation signal according to the comparison result.

[0074] Specifically, the controller 230 and the signal acquisition and processing module 220 can be connected via wireless communication or a cable. Once the controller 230 and the signal acquisition and processing module 220 are connected, the acquisition and processing module 220 transmits the obtained echo amplitude to the controller 230. The controller 230 receives the echo amplitude and compares it with an icing threshold. Based on the comparison result, the controller 230 determines the icing status of the transmission line and outputs a corresponding excitation signal. Alternatively, the controller 230 can be mounted on a transmission tower. The icing threshold is typically determined based on the amplitude of the reflected sound wave. Reflected sound waves are typically enhanced in the presence of ice and relatively weakened in the absence of ice. By comparing the reflected sound waves in the presence and absence of ice, the icing threshold can be determined. For example, the icing threshold is typically in the range of -20dB to -60dB.

[0075] The excitation module 240 is connected to the controller 230 and the flexible ultrasonic sensor 210 , and is configured to determine an excitation mode according to the excitation signal and excite the flexible ultrasonic sensor based on the excitation mode.

[0076] Specifically, the excitation module 240 and the controller 230 can be connected via wireless communication or via a cable. The excitation module 240 and the flexible ultrasonic sensor 210 can be connected via wireless communication or via a cable. On the premise that the excitation module 240 and the controller 230 are connected, the excitation module 240 receives the excitation signal sent by the controller 230 and determines the excitation pattern corresponding to the excitation signal based on the relationship between the excitation signal and the excitation pattern. Then, on the premise that the excitation module 240 and the flexible ultrasonic sensor 210 are connected, after determining the excitation pattern corresponding to the excitation signal, the excitation module 240 excites the flexible ultrasonic sensor with an appropriate excitation signal (such as voltage) according to the determined excitation pattern. In addition, the excitation module 240 can be installed on a transmission tower.

[0077] In the above-described embodiment, a flexible ultrasonic sensor de-icing system is used to de-ice transmission lines. First, ultrasonic waves are excited by a flexible ultrasonic sensor wrapped around the transmission line. A signal acquisition and processing module connected to the flexible ultrasonic sensor collects the sound waves and processes the ultrasonic waves to obtain an echo amplitude. Then, a controller connected to the signal acquisition and processing module compares the echo amplitude with the ice coverage threshold and determines an excitation mode (either a sleep monitoring excitation mode or a de-icing excitation mode) based on the comparison result. The flexible ultrasonic sensor is then excited based on the excitation mode. The above-described flexible ultrasonic sensor de-icing system can automatically detect the ice coverage of the transmission line and select different excitation modes in real time based on the ice coverage status, thereby realizing intelligent de-icing and being more convenient to use. This ensures the reliability and safety of de-icing of transmission lines in adverse weather conditions. In addition, the flexible ultrasonic sensor has a wide range of applicability in applications.

[0078] In some embodiments, the excitation signal comprises a de-icing signal, and the excitation mode comprises a de-icing excitation mode:

[0079] The controller 230 is configured to output a de-icing signal when the echo amplitude is greater than an ice accumulation threshold.

[0080] The excitation module 240 is configured to determine a de-icing excitation mode according to the de-icing signal, and excite the flexible ultrasonic sensor based on the de-icing excitation mode.

[0081] The flexible ultrasonic sensor 210 is used to excite de-icing ultrasonic waves based on the de-icing excitation mode.

[0082] The de-icing excitation mode includes a de-icing excitation voltage, a de-icing driving cycle, and a de-icing detection cycle.

[0083] Specifically, controller 230 receives the echo amplitude and compares it with an ice accumulation threshold. Based on the comparison result, controller 230 determines that the echo amplitude is greater than the ice accumulation threshold and determines that ice is present on the transmission line. After determining that ice is present on the transmission line, controller 230 outputs a de-icing signal. Excitation module 240 receives the de-icing signal sent by controller 230 and, based on the relationship between the de-icing signal and the excitation pattern, determines a de-icing excitation pattern corresponding to the de-icing signal. After determining the de-icing excitation pattern, excitation module 240 excites flexible ultrasonic sensor 210 according to the de-icing excitation voltage included in the de-icing excitation pattern. By applying the de-icing excitation voltage to the upper electrode of flexible ultrasonic sensor 210, flexible ultrasonic sensor 210 can generate de-icing ultrasonic waves to remove ice from the transmission line. In addition to the de-icing excitation voltage, the de-icing excitation pattern also includes a de-icing drive cycle and a de-icing detection cycle, which respectively control the time interval between the excitation signal and the time interval between the sensor receiving the signal. It should be noted that when the absence of ice on the transmission line is detected, the de-icing excitation mode is switched to the sleep monitoring excitation mode to reduce energy consumption. For example, the de-icing excitation voltage is high to ensure sufficient ultrasonic energy to remove ice. The de-icing excitation voltage Vd can be between 5V and 12V. The de-icing drive period Td can be between 0.002ms and 0.01ms. The de-icing detection period Rd can be 30s. In addition, an interval deltaTd can be configured.

[0084] In the above embodiment, when the echo amplitude is greater than the icing threshold, the controller outputs a de-icing signal, the excitation module determines the de-icing excitation mode according to the de-icing signal, and excites the flexible ultrasonic sensor based on the de-icing excitation mode. The flexible ultrasonic sensor excites the de-icing ultrasonic wave based on the de-icing excitation mode, thereby realizing intelligent de-icing and being more convenient to use, thereby ensuring the reliability and safety of de-icing of transmission lines under severe weather conditions.

[0085] In some embodiments, the excitation signal includes a sleep monitoring signal, and the excitation mode includes an excitation mode other than the sleep monitoring mode:

[0086] The controller 230 is configured to output a sleep monitoring signal when the echo amplitude is less than an ice cover threshold.

[0087] The excitation module 240 is configured to determine a sleep monitoring excitation mode according to the sleep monitoring signal, and excite the flexible ultrasonic sensor based on the sleep monitoring excitation mode.

[0088] The flexible ultrasonic sensor 210 is used to excite the sleep monitoring ultrasonic wave based on the sleep monitoring excitation pattern.

[0089] The sleep monitoring excitation mode includes a sleep monitoring excitation voltage, a sleep monitoring driving cycle, and a sleep monitoring detection cycle.

[0090] Specifically, the controller 230 receives the echo amplitude and compares it with an ice accumulation threshold. Based on the comparison result, the controller 230 determines that the echo amplitude is less than the ice accumulation threshold and determines that there is no ice accumulation on the transmission line. After determining that there is no ice accumulation on the transmission line, the controller 230 outputs a sleep monitoring signal. The excitation module 240 receives the sleep monitoring signal sent by the controller 230 and, based on the relationship between the sleep monitoring signal and the excitation pattern, determines a sleep monitoring excitation pattern corresponding to the sleep monitoring signal. After determining the sleep monitoring excitation pattern, the excitation module 240 excites the flexible ultrasonic sensor 210 according to the sleep monitoring excitation voltage included in the sleep monitoring excitation pattern. By applying the sleep monitoring excitation voltage to the upper electrode of the flexible ultrasonic sensor 210, the flexible ultrasonic sensor 210 can excite sleep monitoring ultrasonic waves to detect whether there is ice accumulation on the transmission line. In addition to the sleep monitoring excitation voltage, the sleep monitoring excitation pattern also includes a sleep monitoring drive period and a sleep monitoring detection period, which respectively control the time interval between the excitation signal and the time interval between sensor reception signals. For example, the sleep monitoring excitation voltage is relatively low, and the sleep monitoring excitation voltage Vs may be 3.6V. The sleep monitoring drive period Ts may be between 0.002ms and 0.01ms. The sleep monitoring detection period Rs may be 2h. In addition, an interval deltaTs may be provided.

[0091] In the above embodiment, when the echo amplitude is less than the icing threshold, the controller outputs a sleep monitoring signal, the excitation module determines the sleep monitoring excitation mode according to the sleep monitoring signal, and excites the flexible ultrasonic sensor based on the sleep monitoring excitation mode. The flexible ultrasonic sensor excites the sleep monitoring ultrasonic wave based on the sleep monitoring excitation mode, and can continuously and effectively detect the icing condition of the transmission line with low energy consumption, thereby improving the reliability and energy-saving performance of de-icing.

[0092] In some embodiments, see Figure 3a The flexible ultrasonic sensor 210 has a plurality of flexible ultrasonic sensors, which are wrapped around the power transmission line at preset intervals and used to excite ultrasonic waves.

[0093] Specifically, multiple flexible ultrasonic sensors can be prepared on long-distance transmission lines. A flexible ultrasonic sensor is circumferentially mounted at preset intervals on the transmission line to ensure uniformity and integrity of coverage. Multiple flexible ultrasonic sensors form a sensor array, which is used to detect whether there is ice on the transmission line and to remove ice from the transmission line. Ultrasonic waves are excited by the sensor array composed of multiple flexible ultrasonic sensors to detect whether there is ice on the transmission line, so as to determine the excitation mode for re-excitation. The number of flexible ultrasonic sensors on the transmission line can be determined according to the length of the transmission line. Generally, 5 to 20 flexible ultrasonic sensors can be installed on a 500-meter transmission line.

[0094] See also Figure 3b The flexible ultrasonic sensor de-icing system 200 further includes a channel control module 310 , which is connected to the multiple flexible ultrasonic sensors 210 and is used to control at least one of the multiple flexible ultrasonic sensors to excite ultrasonic waves.

[0095] Among them, ultrasonic waves include sleep monitoring ultrasonic waves and de-icing ultrasonic waves.

[0096] Specifically, the channel control module 310 and the multiple flexible ultrasonic sensors 210 can be connected via wireless communication or cables. Given the connection between the channel control module 310 and the multiple flexible ultrasonic sensors 210, in practice, not all sections of a long-distance transmission line require continuous ice detection, nor do all sections require de-icing. Alternatively, to accelerate de-icing, all flexible ultrasonic sensors on the transmission line can be controlled to operate simultaneously, increasing ultrasonic energy. Therefore, the design of the channel control module 310 allows for selective activation of required flexible ultrasonic sensors. When ice detection or de-icing is required in certain sections, the channel control module 310 selectively controls at least one of the multiple flexible ultrasonic sensors to activate ultrasonic waves based on real-time needs. In some embodiments, when de-icing is determined to be necessary based on the obtained echo amplitude, the channel control module 310 controls at least one of the multiple flexible ultrasonic sensors to activate de-icing ultrasonic waves. In other embodiments, when the echo amplitude determines that no ice is present on the transmission line, the channel control module 310 controls at least one of the multiple flexible ultrasonic sensors to activate dormant monitoring ultrasonic waves.

[0097] In the above embodiment, a plurality of flexible ultrasonic sensors are provided, each of which is arranged around a power line at predetermined intervals and configured to generate ultrasonic waves to achieve long-distance power line de-icing. A channel control module controls the generation of ultrasonic waves by at least one of the plurality of flexible ultrasonic sensors to reduce energy consumption.

[0098] In some embodiments, see Figure 3b The channel control module 310 is connected to the multiple flexible ultrasonic sensors 210 and the excitation module 240, and is used to excite at least one flexible ultrasonic sensor based on the excitation pattern.

[0099] Specifically, the channel control module 310 and the excitation module 240 can be connected via wireless communication or via a cable. If the channel control module 310 and the excitation module 240 are connected, the channel control module 310 can operate according to the excitation mode of the excitation module 240. The channel control module 310 and the multiple flexible ultrasonic sensors 210 can be connected via wireless communication or via a cable. If the channel control module 310 and the multiple flexible ultrasonic sensors 210 are connected, in actual operation, not all sections of a long-distance transmission line require continuous ice detection, nor do all sections require de-icing. Alternatively, to speed up de-icing, all flexible ultrasonic sensors on the transmission line can be controlled to operate simultaneously to increase ultrasonic energy. Therefore, the channel control module 310 operates according to the excitation mode of the excitation module 240, controlling at least one of the multiple flexible ultrasonic sensors to emit ultrasonic waves. In some embodiments, when the excitation mode of the excitation module 240 is the de-icing mode, the channel control module 310 controls at least one of the multiple flexible ultrasonic sensors to emit de-icing ultrasonic waves. In other embodiments, when the excitation mode of the excitation module 240 is the dormant monitoring excitation mode, the channel control module 310 controls at least one flexible ultrasonic sensor among the plurality of flexible ultrasonic sensors to excite the dormant monitoring ultrasonic wave.

[0100] In the above embodiment, the channel control module is connected to multiple flexible ultrasonic sensors and the excitation module, and is used to excite at least one flexible ultrasonic sensor based on the excitation pattern, thereby realizing intelligent deicing and monitoring, which is more convenient to use.

[0101] In some embodiments, see Figure 4 , the flexible ultrasonic sensor de-icing system 200 further includes:

[0102] The communication terminal 410 is connected to the controller 230 and is used to send the echo amplitude to the host computer.

[0103] The host computer 420 is connected to the communication terminal 410 and is used to output ice thickness information according to the ice thickness-echo amplitude curve.

[0104] Specifically, the communication terminal 410 and the controller 230 can be connected via wireless communication or via a cable. Provided that the communication terminal 410 and the controller 230 are connected, the communication terminal 410 receives the echo amplitude from the controller 230 and sends it to the host computer. The host computer 420 and the communication terminal 410 can be connected via wireless communication (such as LoRa 2.4G wireless communication) or via a cable. Provided that the host computer 420 and the communication terminal 410 are connected, the host computer 420 constructs an ice thickness-echo amplitude curve based on the received echo amplitude. Based on the generated ice thickness-echo amplitude curve, the host computer 420 calculates real-time ice thickness information, and the ice thickness information can be output through a display screen, a network interface, or the like for real-time viewing or further processing by the user.

[0105] In some embodiments, see Figure 5 The flexible ultrasonic sensor 502 is connected to the tape 504 , the tape 504 is connected to the buckle 506 , the flexible ultrasonic sensor 502 is looped around the power transmission line through the tape 504 , and the flexible ultrasonic sensor 502 is fixed to the power transmission line through the buckle 506 .

[0106] Specifically, the flexible ultrasonic sensor 502 is connected to the clip 504 via an interface (e.g., a slot or clamp). The clip 506 is a fixing device connected to the clip 504, ensuring that the clip 504 is securely fixed to the desired position on the power line, thereby securing the flexible ultrasonic sensor 502 to the power line via the clip 506. Once the clip 504 is connected to the flexible ultrasonic sensor 502 and the clip 506, the flexible ultrasonic sensor 502 is looped around the power line via the clip 504. The clip and clip design simplifies the installation and maintenance of the flexible ultrasonic sensor.

[0107] In the above embodiment, the flexible ultrasonic sensor is connected to the cassette, the cassette is connected to the buckle, the flexible ultrasonic sensor is wrapped around the power transmission line through the cassette, and the flexible ultrasonic sensor is fixed to the power transmission line through the buckle. The use of a buckle-type flexible ultrasonic sensor facilitates the installation and use of the flexible ultrasonic sensor on the power transmission line.

[0108] In some embodiments, the flexible ultrasonic sensor includes: a curved mold; a flexible substrate, a first side of the flexible substrate is connected to the curved mold; a piezoelectric ceramic sheet, a first side of the piezoelectric ceramic sheet is connected to a second side of the flexible substrate via a conductive adhesive; and a metal top electrode, disposed on the second side of the piezoelectric ceramic sheet, the metal top electrode being point-connected to an upper electrode Pad on the flexible substrate.

[0109] The piezoelectric ceramic sheet is divided into multiple array elements, with scribe grooves between adjacent array elements, and the scribe grooves are filled with epoxy resin glue;

[0110] Specifically, see Figure 6 The flexible ultrasonic sensor includes a curved mold 602 and a flexible substrate 604. The first side of the flexible substrate 604 is connected to the curved mold 602. The flexible ultrasonic sensor includes a piezoelectric ceramic sheet 606 divided into a plurality of array elements. Scribe grooves are defined between adjacent array elements of the piezoelectric ceramic sheet 606, and the scribe grooves are filled with epoxy resin glue. The first side of the piezoelectric ceramic sheet 606 divided into a plurality of array elements is connected to the second side of the flexible substrate 604 via conductive glue. The flexible ultrasonic sensor also includes a metal top electrode 608. The metal top electrode 608 is disposed on the second side of the piezoelectric ceramic sheet 606 and is point-connected to the top electrode pad on the flexible substrate 604.

[0111] In some embodiments, see Figure 7a , the flexible ultrasonic sensor is obtained by:

[0112] S710. The piezoelectric ceramic sheet is disposed on the flexible substrate through a conductive adhesive.

[0113] S720: Divide the piezoelectric ceramic sheet into a plurality of array elements and discretely arrange them on the flexible substrate.

[0114] S730, fill the scribe line with epoxy resin glue.

[0115] S740: The flexible substrate is fixed on the curved mold and a metal upper electrode is sputtered at the other end of the array element.

[0116] S750 , connecting the metal upper electrode to the upper electrode Pad point on the flexible substrate, and connecting the upper electrode Pad point to the welding wire; connecting the lower electrode Pad point on the flexible substrate to the welding wire.

[0117] S760. Use flexible packaging materials to encapsulate and form a flexible ultrasonic sensor.

[0118] Wherein, there are scribe grooves between adjacent array elements. The flexible substrate can be a flexible PCB board.

[0119] Specifically, flexible ultrasonic sensors are not made of flexible piezoelectric materials or flexible electrodes, but are made by cutting conventional piezoelectric ceramic sheets and then gluing them onto a flexible substrate. Figure 7b First, a customized square PZT piezoelectric ceramic sheet 702 is used as the base material. Conductive glue 704 is applied to the back of the piezoelectric ceramic sheet 702 and attached to the flexible substrate 706. Figure 7cThen, a dicing machine is used to cut the entire piezoelectric ceramic sheet 702 into array elements 708 with a size of 2 to 10 mm. The piezoelectric ceramic sheet is divided into multiple array elements 708 and discretely arranged on the flexible substrate 706. A dicing groove of 0.1 to 1 mm is reserved between adjacent array elements to facilitate the subsequent glue filling process. Figure 7d To prevent the glue from overflowing during the filling process and affecting the performance of the device, it is necessary to stick a UV film 710 on the surface of multiple piezoelectric ceramic elements 708. The UV film 710 not only ensures the flatness of the filling glue, but also can be easily removed after curing. Figure 7e Next, fill the scribe line with epoxy resin 712 and heat it on a heating plate to cure the glue. Figure 7f After the glue is cured, the UV film 710 on the surface of the plurality of piezoelectric ceramic elements 708 is removed. Figure 7g The flexible substrate 706 is then secured to the curved mold 714. Metal is then sputtered onto the other end of each piezoelectric ceramic element 708 to form an upper electrode 716 (e.g., Au). The metal upper electrode 716 is then connected to the upper electrode pad on the flexible substrate 706. The upper electrode pad is then connected to a welding wire, and the lower electrode pad on the flexible substrate 706 is then connected to a welding wire, thereby achieving a connection between the elements and ensuring electrical connectivity. Finally, the entire device is encapsulated using a flexible encapsulation material (e.g., polyurethane) to form a flexible ultrasonic sensor, ensuring its reliability and durability in practical applications.

[0120] For example, the array elements can be connected to form an array, such as a 4*4, 5*5, ..., 15*15 piezoelectric ceramic array. Taking a 14*14 piezoelectric ceramic array as an example, please refer to Figure 7h , connected to the lower electrode pad 718 on the flexible substrate via a wire. The metal upper electrode is connected to the upper electrode pad 720 on the flexible substrate via conductive silver paste, and the upper electrode pad is connected to the wire. To facilitate differentiation and identification, the wires for the upper and lower electrodes are different colors. The upper electrode is connected using red wire, while the lower electrode uses black wire. During testing, other equipment required for testing is connected via wires.

[0121] In the above embodiments, the flexible ultrasonic sensor has wide applicability in applications.

[0122] This specification provides a de-icing method based on a flexible ultrasonic sensor. Figure 8 The deicing method based on the flexible ultrasonic sensor is applied to any of the above-mentioned flexible ultrasonic sensor deicing systems, wherein the flexible ultrasonic sensor is sheathed around the transmission line. The method may include the following steps:

[0123] S810, exciting ultrasonic waves through the flexible ultrasonic sensor.

[0124] S820: The signal acquisition and processing module collects ultrasonic waves and processes the signals to obtain echo amplitude.

[0125] S830: Compare the echo amplitude with the ice threshold through the controller, and output an excitation signal according to the comparison result.

[0126] S840: Determine an excitation mode according to the excitation signal through an excitation module, and excite the flexible ultrasonic sensor based on the excitation mode.

[0127] Specifically, when the flexible ultrasonic sensor is operating, an excitation voltage is applied to its upper electrode, stimulating ultrasonic waves. Ultrasonic waves propagate at a specific frequency and intensity and are used to detect ice accumulation or remove ice from power lines. The signal acquisition and processing module collects the ultrasonic waves emitted by the flexible ultrasonic sensor. After collecting the ultrasonic waves, the signal acquisition and processing module processes them to obtain an echo amplitude. The acquisition and processing module transmits the obtained echo amplitude to the controller. The controller receives the echo amplitude and compares it with an ice accumulation threshold. Based on the comparison result, the controller determines the ice accumulation status of the power line and outputs a corresponding excitation signal. The excitation module receives the excitation signal from the controller and, based on the relationship between the excitation signal and the excitation pattern, determines the excitation pattern corresponding to the excitation signal. After determining the excitation pattern corresponding to the excitation signal, the excitation module generates an appropriate excitation signal (e.g., voltage) to excite the flexible ultrasonic sensor.

[0128] In the above embodiment, ultrasonic waves are excited by a flexible ultrasonic sensor, and the ultrasonic waves are collected and processed by a signal acquisition and processing module to obtain an echo amplitude. The echo amplitude is compared with the icing threshold by a controller, and an excitation signal is output according to the comparison result. The excitation module determines an excitation mode according to the excitation signal, and excites the flexible ultrasonic sensor based on the excitation mode. This can automatically detect the icing condition of the transmission line and select different excitation modes in real time according to the icing condition, thereby realizing intelligent de-icing, being more convenient to use, and ensuring the reliability and safety of de-icing of the transmission line under severe weather conditions.

[0129] In some embodiments, see Figure 9 The excitation signal includes a de-icing signal, the excitation mode includes a de-icing excitation mode, and the steps may include:

[0130] S910: Outputting a de-icing signal via the controller when the echo amplitude is greater than an ice accumulation threshold.

[0131] S920: Determine a deicing excitation mode according to the deicing signal through an excitation module, and excite the flexible ultrasonic sensor based on the deicing excitation mode.

[0132] S930: Excite deicing ultrasonic waves based on the deicing excitation mode through the flexible ultrasonic sensor.

[0133] The de-icing excitation mode includes a de-icing excitation voltage, a de-icing driving cycle, and a de-icing detection cycle.

[0134] Specifically, the controller receives the echo amplitude and compares it with an ice accumulation threshold. The controller then determines, based on the comparison result, that the echo amplitude is greater than the ice accumulation threshold and determines that ice is present on the transmission line. After determining that ice is present on the transmission line, the controller outputs a de-icing signal. The excitation module receives the de-icing signal from the controller and, based on the relationship between the de-icing signal and the excitation pattern, determines a de-icing excitation pattern corresponding to the de-icing signal. After determining the de-icing excitation pattern, the excitation module excites the flexible ultrasonic sensor according to the de-icing excitation voltage included in the de-icing excitation pattern. By applying the de-icing excitation voltage to the upper electrode of the flexible ultrasonic sensor, the flexible ultrasonic sensor can generate de-icing ultrasonic waves to remove ice from the transmission line. In addition to the de-icing excitation voltage, the de-icing excitation pattern also includes a de-icing drive cycle and a de-icing detection cycle, which control the time interval between the excitation signal and the sensor's reception signal, respectively. It should be noted that when the de-icing excitation mode is detected as no longer present on the transmission line, the de-icing excitation mode is switched to a sleep monitoring excitation mode to reduce energy consumption.

[0135] In the above embodiment, the controller outputs a de-icing signal when the echo amplitude is greater than the icing threshold, the excitation module determines the de-icing excitation mode according to the de-icing signal, and excites the flexible ultrasonic sensor based on the de-icing excitation mode. The flexible ultrasonic sensor excites the de-icing ultrasonic wave based on the de-icing excitation mode, thereby realizing intelligent de-icing, being more convenient to use, and ensuring the reliability and safety of de-icing of transmission lines under severe weather conditions.

[0136] In some embodiments, see Figure 10 The excitation signal includes a sleep monitoring signal, and the excitation mode includes an excitation mode other than the sleep monitoring mode, which may include the following steps:

[0137] S1010: Outputting a sleep monitoring signal via the controller when the echo amplitude is less than an ice cover threshold.

[0138] S1020 , determining a sleep monitoring excitation mode according to the sleep monitoring signal through an excitation module, and exciting the flexible ultrasonic sensor based on the sleep monitoring excitation mode.

[0139] S1030 , stimulating the dormancy monitoring ultrasonic wave based on the dormancy monitoring excitation mode through the flexible ultrasonic sensor.

[0140] The sleep monitoring excitation mode includes a sleep monitoring excitation voltage, a sleep monitoring driving cycle, and a sleep monitoring detection cycle.

[0141] Specifically, the controller receives the echo amplitude and compares the received echo amplitude with the ice threshold. Then, based on the comparison result, the controller determines that the echo amplitude is less than the ice threshold and judges that there is no ice on the transmission line. After determining that there is no ice on the transmission line, the controller outputs a sleep monitoring signal. The excitation module receives the sleep monitoring signal sent by the controller and determines the sleep monitoring excitation mode corresponding to the sleep monitoring signal based on the relationship between the sleep monitoring signal and the excitation mode. Then, after determining the sleep monitoring excitation mode, the excitation module excites the flexible ultrasonic sensor according to the sleep monitoring excitation voltage included in the sleep monitoring excitation mode. By applying the sleep monitoring excitation voltage to the upper electrode of the flexible ultrasonic sensor, the flexible ultrasonic sensor can excite the sleep monitoring ultrasonic wave to detect whether there is ice on the transmission line. In addition to the sleep monitoring excitation voltage, the sleep monitoring excitation mode also includes a sleep monitoring drive period and a sleep monitoring detection period, which respectively control the time interval of the excitation signal and the time interval of the sensor receiving the signal.

[0142] In the above embodiment, the controller outputs a sleep monitoring signal when the echo amplitude is less than the icing threshold, the excitation module determines the sleep monitoring excitation mode according to the sleep monitoring signal, and excites the flexible ultrasonic sensor based on the sleep monitoring excitation mode. The flexible ultrasonic sensor excites the sleep monitoring ultrasonic wave based on the sleep monitoring excitation mode, which can continuously and effectively detect the icing condition of the transmission line with low energy consumption, thereby improving the reliability and energy-saving performance of de-icing.

[0143] This specification provides a de-icing device 1100 based on a flexible ultrasonic sensor. Figure 11 The deicing device based on the flexible ultrasonic sensor is applied to any of the flexible ultrasonic sensor deicing systems described above. The flexible ultrasonic sensor is wrapped around the transmission line. The deicing device based on the flexible ultrasonic sensor 1100 includes: an ultrasonic excitation module 1110, an ultrasonic processing module 1120, an amplitude and threshold comparison module 1130, and a sensor excitation module 1140.

[0144] An ultrasonic excitation module 1110, configured to excite ultrasonic waves through the flexible ultrasonic sensor;

[0145] The ultrasonic wave processing module 1120 is used to collect the ultrasonic wave through the signal collection and processing module and perform signal processing on the ultrasonic wave to obtain the echo amplitude;

[0146] An amplitude and threshold comparison module 1130 is configured to compare the echo amplitude with an ice threshold through a controller, and output an excitation signal according to the comparison result;

[0147] The sensor excitation module 1140 is configured to determine an excitation pattern according to the excitation signal through an excitation module, and excite the flexible ultrasonic sensor based on the excitation pattern.

[0148] In some embodiments, the excitation signal includes a de-icing signal, and the excitation mode includes a de-icing excitation mode:

[0149] Outputting the de-icing signal by the controller when the echo amplitude is greater than the ice coverage threshold;

[0150] Determining the deicing excitation mode according to the deicing signal by the excitation module, and exciting the flexible ultrasonic sensor based on the deicing excitation mode, wherein the deicing excitation mode includes a deicing excitation voltage, a deicing drive cycle, and a deicing detection cycle;

[0151] De-icing ultrasonic waves are excited by the flexible ultrasonic sensor based on the de-icing excitation pattern.

[0152] In some embodiments, the excitation signal includes a sleep monitoring signal, and the excitation mode includes an excitation mode other than the sleep monitoring mode:

[0153] outputting the sleep monitoring signal by the controller when the echo amplitude is less than the ice threshold;

[0154] Determining the sleep monitoring excitation mode according to the sleep monitoring signal by the excitation module, and exciting the flexible ultrasonic sensor based on the sleep monitoring excitation mode, wherein the sleep monitoring excitation mode includes a sleep monitoring excitation voltage, a sleep monitoring driving period, and a sleep monitoring detection period;

[0155] The dormancy monitoring ultrasonic waves are excited by the flexible ultrasonic sensor based on the dormancy monitoring excitation pattern.

[0156] For a detailed description of the deicing device based on the flexible ultrasonic sensor, please refer to the above description of the deicing method based on the flexible ultrasonic sensor, which will not be repeated here.

[0157] In some embodiments, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as shown in FIG. Figure 12As shown. 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. When the computer program is executed by the processor, a de-icing method based on a flexible ultrasonic sensor is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad provided on the computer device housing, or an external keyboard, touchpad or mouse.

[0158] Those skilled in the art will understand that Figure 12 The structure shown in the figure is merely a block diagram of a portion of the structure related to the solution disclosed in this specification, and does not constitute a limitation on the computer device to which the solution disclosed in this specification is applied. Specifically, the computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0159] In some embodiments, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the method steps in the above embodiments when executing the computer program.

[0160] An embodiment of this specification provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the method in any of the above embodiments are implemented.

[0161] One embodiment of the present specification provides a computer program product, which includes instructions. When the instructions are executed by a processor of a computer device, the computer device is enabled to perform the steps of the method of any of the above embodiments.

[0162] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or otherwise processing it in a suitable manner if necessary, and then storing it in a computer memory.

Claims

1. A flexible ultrasonic sensor deicing system, characterized in that: The flexible ultrasonic sensor deicing system is used to de-ice transmission lines, and the system comprises: A flexible ultrasonic sensor is sheathed around the transmission line and is used to excite ultrasonic waves; a signal acquisition and processing module, connected to the flexible ultrasonic sensor, for acquiring the ultrasonic waves and performing signal processing on the ultrasonic waves to obtain the echo amplitude; A controller connected to the signal acquisition and processing module, configured to compare the echo amplitude with an ice threshold and output an excitation signal according to the comparison result; The excitation module is connected to the controller and the flexible ultrasonic sensor, and is used to determine an excitation mode according to the excitation signal and excite the flexible ultrasonic sensor based on the excitation mode.

2. The system according to claim 1, wherein: The excitation signal includes a de-icing signal, and the excitation mode includes a de-icing excitation mode: The controller is configured to output the de-icing signal when the echo amplitude is greater than the ice coverage threshold; The excitation module is used to determine the deicing excitation mode according to the deicing signal, and excite the flexible ultrasonic sensor based on the deicing excitation mode, wherein the deicing excitation mode includes a deicing excitation voltage, a deicing driving cycle, and a deicing detection cycle; The flexible ultrasonic sensor is used to excite deicing ultrasonic waves based on the deicing excitation pattern.

3. The system according to claim 1, wherein: The excitation signal includes a sleep monitoring signal, and the excitation mode includes an excitation mode other than the sleep monitoring excitation mode: The controller is configured to output the sleep monitoring signal when the echo amplitude is less than the ice coverage threshold; The excitation module is used to determine the sleep monitoring excitation mode according to the sleep monitoring signal, and excite the flexible ultrasonic sensor based on the sleep monitoring excitation mode, wherein the sleep monitoring excitation mode includes a sleep monitoring excitation voltage, a sleep monitoring driving period, and a sleep monitoring detection period; The flexible ultrasonic sensor is used to excite the sleep monitoring ultrasonic wave based on the sleep monitoring excitation pattern.

4. The system according to claim 1, wherein: There are a plurality of flexible ultrasonic sensors, which are sheathed around the power transmission line at preset intervals and used to excite the ultrasonic waves; The system also includes a channel control module, which is connected to the multiple flexible ultrasonic sensors and is used to control at least one of the multiple flexible ultrasonic sensors to excite the ultrasonic wave; wherein the ultrasonic wave includes a sleep monitoring ultrasonic wave and a de-icing ultrasonic wave.

5. The system according to claim 4, characterized in that The channel control module is connected to the plurality of flexible ultrasonic sensors and the excitation module, and is configured to excite at least one of the flexible ultrasonic sensors based on the excitation pattern.

6. The system according to claim 1, wherein: The system further comprises: a communication terminal connected to the controller and configured to send the echo amplitude to a host computer; The host computer is connected to the communication terminal and is used to output ice thickness information according to the ice thickness-echo amplitude curve.

7. The system according to claim 1, wherein: The flexible ultrasonic sensor is connected to a cassette, the cassette is connected to a buckle, the flexible ultrasonic sensor is looped around the power transmission line through the cassette, and the flexible ultrasonic sensor is fixed to the power transmission line through the buckle.

8. The system according to claim 1, wherein: The flexible ultrasonic sensor comprises: curved surface molds; a flexible substrate, wherein a first side of the flexible substrate is connected to the curved mold; A piezoelectric ceramic sheet, wherein a first side of the piezoelectric ceramic sheet is connected to a second side of the flexible substrate via a conductive adhesive, wherein the piezoelectric ceramic sheet is divided into a plurality of array elements, and a scribe groove is defined between adjacent array elements, and the scribe groove is filled with epoxy resin adhesive; The metal upper electrode is arranged on the second side of the piezoelectric ceramic sheet, and the metal upper electrode is point-connected to the upper electrode Pad on the flexible substrate.

9. The system according to claim 1, wherein: The flexible ultrasonic sensor is obtained by the following method: The piezoelectric ceramic sheet is placed on a flexible substrate via a conductive adhesive; The piezoelectric ceramic sheet is divided into a plurality of array elements and discretely arranged on a flexible substrate; wherein a scribing groove is provided between adjacent array elements; Filling the scribe lines with epoxy resin glue; The flexible substrate is fixed on the curved mold and a metal upper electrode is sputtered on the other end of the array element; The metal upper electrode is connected to the upper electrode Pad point on the flexible substrate, and the upper electrode Pad point is connected to the welding line; the lower electrode Pad point on the flexible substrate is connected to the welding line; The flexible ultrasonic sensor is packaged using a flexible packaging material to form the flexible ultrasonic sensor.

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