Array type self-powered coding and speed detection system and method

Abstract

The invention provides an array type self-powered coding and speed detection system and method. The array type self-powered coding and speed detection system comprises a rolling device, a counter electrode layer, a conductive transmission layer, an electrode strip and a signal acquisition device, array type electrode strips are arranged on the outer surface of the rolling device; the rolling device serves as a positive electrode and is connected with the signal collecting device and the rectifying device through wires. A counter electrode layer is arranged on the conductive transmission layer; the conductive transmission layer serves as a cathode and is connected with the signal acquisition device and the rectifying device through wires; in the rolling process of the rolling device, the array type electrode strips make contact with or are separated from the counter electrode layer, so that electric signals are generated, and the generated electric signals are collected through the signal collecting device; the rectifying device converts the alternating-current signal into a direct-current signal to supply power to the energy storage device. According to the invention, specific coding information is obtained by using relative difference of electrical properties of different materials; the system also has the advantage of high response speed, is far better than the existing visual sensor, and has the potential of self power supply.

Description

Technical Field

[0001] The present invention relates to the field of sensor monitoring technology, and in particular to an array type self-powered encoding and speed detection system and method. Background Art

[0002] With the rapid development of Internet of Things technology, a coding system that can realize the interconnection between objects and between objects and people is particularly important. By assigning specific identity tags to devices, the coding system can realize the interconnection between devices, and then realize information integration and sharing, so that they can be accurately identified and located in the Internet of Things, which will be able to record key information such as the operating status of the equipment, production and processing results, and product attributes. Through the real-time collection and analysis of this information, enterprises can promptly discover problems in production and optimize them, thereby improving production efficiency and optimizing production processes. In addition, the coding system can also be used as a smart sensor to monitor the vibration, speed and other parameters of the equipment in real time, which can promptly detect equipment failures and solve potential equipment maintenance problems, prevent the occurrence of safety accidents, and extend the service life of the equipment, thereby improving overall production efficiency.

[0003] However, the current coding system and sensor system with information storage and transmission functions of the Internet of Things operate independently, and their performance in large-scale applications is unsatisfactory, and they cannot achieve low-cost encoding of equipment or objects and perception of their operating status. In particular, the parcel diversion system that uses image barcodes to give logistics information and relies on visual image analysis and recognition algorithms still has limitations when dealing with complex scenarios and variation factors.

[0004] For example, patent CN 108229625 A first sets the coding area and coding reference position, and then quickly locates the area where the image barcode unit array of the entire two-dimensional code is located, and then determines the reading direction of the barcode unit array and generates coding information. Patent CN 112163442 A uses a multi-angle industrial camera to capture the code pasted on the surface of the package, and uses graphic code detection technology to decode the located graphic code to obtain information about all graphic codes in the image. However, the above patents related to Internet of Things coding and recognition are relatively complex and each system is independent of each other, which will significantly affect the production process of the entire industrial production system. In addition, the visual recognition system requires high-performance cameras, image processing equipment and advanced algorithm support. The combination of these hardware and software results in slow processing speed and relatively high cost, which further limits the development of future smart logistics.

[0005] With the development of microelectronics and information technology, electrical sensing methods are widely used in the fields of coding and sensing due to their advantages such as high sensitivity, fast response, wide application range and self-driving. For example, patent CN 112134483A uses the characteristics of different relative angles of nanofibers in the two friction layers of anisotropic triboelectric nanogenerators to output different signal intensities to distinguish coded information and then encrypt the information. Similarly, patent CN 112216198A uses the characteristics of the arrangement direction of nanofibers invisible to the naked eye on the basis of anisotropic triboelectric nanogenerator coding to prepare an anti-counterfeiting system and realize the application of the signal output by anisotropic triboelectric nanogenerator at the information level. In addition, in terms of the sensing of triboelectric materials, patent CN 110872425 A mixes various materials such as modified thermosetting resin, reinforcing fiber and inorganic composite filler in a certain proportion to obtain wear-resistant and high-temperature resistant triboelectric materials, and prepares them into a vibration-type triboelectric self-driven sensing system for monitoring vehicle overweight, overweight or tire pressure. Similarly, patent CN 108802426 A discloses a method for converting the acceleration of the vibration of the target to be monitored into a voltage signal to achieve displacement and velocity monitoring. However, the above-mentioned encoding and sensing technologies related to electrical sensing methods are also independent of each other, have a single application scenario, and the electrical sensing materials used cannot be precisely controlled. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an array-type self-powered encoding and speed detection system and method. The present invention realizes the detection of encoding signals and speed signals through a detection system, and obtains specific encoding information by utilizing the relative differences in the electrical properties of different materials, that is, regulating the arrangement and combination mode, position, spacing, and material of the array-type electrode strips; and realizes the generation of electrical signals by frictionally contacting and separating the electrode strips from the counter electrode layer during the rolling process.

[0007] The technical solution of the present invention is: an array-type self-powered encoding and speed detection system, comprising a rolling device, an electrode layer, a conductive transmission layer, electrode strips, and a signal acquisition device; an array-type electrode strip is arranged on the outer surface of the rolling device; the rolling device is used as a positive electrode and is connected to the signal acquisition device and the rectifier device through wires respectively, and the rectifier device is connected to the energy storage device;

[0008] A counter electrode layer is arranged on the conductive transmission layer; the conductive transmission layer is used as a negative electrode and is connected to a signal acquisition device and a rectifier device through wires respectively;

[0009] The rolling device rolls on the counter electrode layer through a driving device. During the rolling process, the array of electrode strips contacts or separates from the counter electrode layer, thereby generating an electrical signal. The generated electrical signal is collected by a signal collection device, rectified by a rectifying device, and stored in an energy storage device.

[0010] Preferably, the rolling device includes a conductive roller, which is connected to a connecting shaft via a rolling bearing, and the conductive roller serves as a positive electrode and is connected to a signal acquisition device and a rectifier device via wires; the array-type electrode strips are arranged on the outer surface of the conductive roller and contact the electrode layer during rolling.

[0011] Preferably, the driving device includes a driving motor, a connecting rod assembly, and a U-shaped frame. The driving motor is connected to the U-shaped frame through the connecting rod assembly, and the U-shaped frame is connected to the connecting shaft of the rolling device. The driving motor drives the connecting rod assembly to drive the rolling device to reciprocate on the conductive transmission layer provided with the counter electrode layer.

[0012] Preferably, the counter electrode layer is bonded to the outer surface of the conductive transmission layer by an adhesive.

[0013] Preferably, the electrode strips are made of, but not limited to, one or more of metal-organic molecular cage materials, metal-organic framework materials, metal-organic hybrid materials, metal-organic polymer materials, porous framework crystalline materials, and metal oxide materials.

[0014] Preferably, the counter electrode layer is made of but not limited to one or more of polytetrafluoroethylene, polyvinylidene fluoride, polydimethylsiloxane, polyimide, ethyl cellulose, polyamide, melamine formaldehyde, polyurethane elastomer, styrene propylene copolymer, styrene butadiene copolymer, artificial fiber, natural rubber, polyacrylonitrile, polyvinylidene chloride, polyethylene, polypropylene, and polyvinyl chloride.

[0015] Preferably, the conductive transmission layer is made of a mixture of one or more of but not limited to copper (Cu), silver (Ag), aluminum (Al), silicon (Si), germanium (Ge), graphite, carbon fiber, polyacetylene, polyaniline, conductive ceramics, and conductive rubber.

[0016] Preferably, the adhesive is made by mixing one or more of, but not limited to, epoxy resin, phenolic resin, amino resin, polyurethane resin, unsaturated polyester, acrylic resin, rubber base material, natural polymer material, and water-based latex base material.

[0017] Preferably, the electrode strips have a size of 0.001-50 μm and a thickness of 0.1-100 μm.

[0018] Preferably, the thickness of the electrode strips, the counter electrode layer and the conductive transmission layer are all 0.1-100 μm.

[0019] Preferably, the signal acquisition device is an oscilloscope, which is connected to an analog-to-digital conversion system. The analog-to-digital conversion system converts the acquired electrical signal into an analog signal, and the analog signal is processed accordingly to obtain a coded signal.

[0020] Preferably, the present invention further provides an array-type self-powered encoding and speed detection method, comprising the following steps:

[0021] S1), controlling a rolling device with array-type electrode strips to roll on a conductive transmission layer provided with a counter electrode layer by a driving device, utilizing the relative difference in electrical properties of different materials, causing the array-type electrode strips to contact or separate from the counter electrode layer during the rolling process, thereby generating a series of gradient electrical signals, and collecting the generated electrical signals by a signal collection device;

[0022] S2), converting the analog peak signal collected by the signal collection device into a series of specific coding signals and speed signals through analog-to-digital conversion;

[0023] Among them, by arranging the peak values ​​of the electrical signal in a specific order of magnitude, a specific coding signal is obtained; the speed signal is calculated by the change frequency or response time difference between the spacing of the array electrode strips and the peak value of the electrical signal;

[0024] S3) The digital coding signal and the digital speed signal are converted into specific assigned coding information and speed information through screen display.

[0025] Preferably, in step S3), different digital coding signals are obtained by controlling the arrangement, combination, position, spacing, and material of the arrayed electrode strips.

[0026] Preferably, in step S3), the digitally coded information includes but is not limited to physical property information such as the object's position, motion state, environmental parameters, etc.; identity information such as production, transportation, distribution, etc.; and interaction and control information in the fields of logistics, retail, agriculture, etc.

[0027] Preferably, the detection system of the present invention is applied in smart logistics and smart home.

[0028] The beneficial effects of the present invention are:

[0029] 1. The present invention utilizes the relative differences in electrical properties of different materials, that is, adjusts the arrangement, position, spacing, and materials of the arrayed electrode strips to obtain specific coded information; and generates electrical signals by separating the contact friction between the electrode strips and the counter electrode layer during the rolling process;

[0030] 2. The detection system of the present invention has a high degree of integration, realizes multifunctional coding and sensing detection, and has the advantage of fast response speed. The fastest response time for the coding signal to reach the peak value is only 2.1ms, which is far superior to the existing visual sensors;

[0031] 3. The present invention can detect the instantaneous speed and average speed of the operating device in real time and in segments with high accuracy, and the present invention converts the AC signal into a DC signal through a rectifier device to supply power to the energy storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a structural block diagram of the system in Embodiment 1 of the present invention;

[0033] Figure 2 is a structural block diagram of the system in Embodiment 2 of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of the rolling device and the driving device of Example 1 of the present invention;

[0035] Figure 4 is a schematic diagram of the rolling process of the rolling device in Example 1 of the present invention;

[0036] Figure 5 Schematic diagram of the cyclic stability of Example 1 of the present invention;

[0037] Figure 6 This is a schematic diagram of the detection of Example 2 of the present invention;

[0038] Figure 7 This is a schematic diagram of rolling in Example 2 of the present invention;

[0039] Figure 8 This is a schematic diagram of the response time of reaching a peak value within one cycle in Example 1 of the present invention;

[0040] Fig. 9 This is a schematic diagram of the response time of reaching a peak value within one cycle in Embodiment 2 of the present invention;

[0041] Fig.10 This is a schematic diagram of average speed test during exercise in Example 1 of the present invention;

[0042] Fig.11 This is a schematic diagram of speed detection during motion according to Embodiment 1 of the present invention;

[0043] Fig.12 This is a schematic diagram of a cyclic charge and discharge test of the energy storage device of Example 1 of the present invention.

[0044] In the figure, 1-rolling device; 2-counter electrode layer; 3-conductive transmission layer; 4-electrode strip; 5-signal acquisition device; 6-driving device; 7-supporting workbench; 8-rectifying device; 9-energy storage device;

[0045] 11-conductive roller; 12-connecting shaft;

[0046] 61-driving motor; 62-connecting rod assembly; 63-U-shaped frame. DETAILED DESCRIPTION

[0047] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings:

[0048] Example 1

[0049] like Figure 1 and 2 As shown, this embodiment is an array-type self-powered encoding and speed detection system, comprising a rolling device 1, an electrode layer 2, a conductive transmission layer 3, an electrode strip 4, and a signal acquisition device 5; an array of electrode strips 4 are arranged on the outer surface of the rolling device 1; the rolling device 1 is connected to the signal acquisition device 5 and the rectifier device 8 as a positive electrode through wires, and the rectifier device 8 is also connected to the energy storage device 9;

[0050] The conductive transmission layer 3 is provided with an electrode layer 2; the conductive transmission layer 3 is connected to the signal acquisition device 5 and the rectifier device 8 as a negative electrode through wires; in this embodiment, the conductive transmission layer 3 is arranged on the support workbench 7. In this embodiment, the rectifier device 8 includes 4 diodes connected in sequence. The energy storage device 9 is composed of a plurality of capacitors or batteries. In this embodiment, the energy storage device 9 is subjected to 20 cycles of charge and discharge tests on the generated electrical signal. The results show that it has good power supply stability and has the potential for self-power supply, such as Fig.12 shown.

[0051] In this embodiment, the rolling device 1 rolls on the electrode layer 2 through the driving device 6. During the rolling process, the array of electrode strips 4 generate electrical signals by contacting or separating from the electrode layer 2, and the generated electrical signals are collected by the signal collection device 5.

[0052] As preferred in this embodiment, Figure 3As shown, the rolling device 1 includes a conductive roller 11, which is connected to a connecting shaft 12 via a rolling bearing. The conductive roller 11 is used as a positive electrode and is connected to a signal acquisition device 5 and a rectifier device 8 via wires. An array of electrode strips 4 is arranged on the outer surface of the conductive roller 11, and contacts the electrode layer 2 during rolling, generating an electrical signal when in contact.

[0053] As preferred in this embodiment, Figure 3 As shown, the driving device 6 includes a driving motor 61, a connecting rod assembly 62, and a U-shaped frame 63. The driving motor 61 is connected to the U-shaped frame 63 through the connecting rod assembly 62. The U-shaped frame 63 is connected to the connecting shaft 12 of the rolling device 1. The driving motor 61 drives the connecting rod assembly 62 to drive the rolling device 1 to roll back and forth on the electrode layer 2.

[0054] As a preferred embodiment of this embodiment, the counter electrode layer 2 is bonded to the outer surface of the conductive transmission layer 3 by an adhesive.

[0055] As a preferred embodiment of the present invention, the electrode strips 4 are made of, but not limited to, one or more of metal-organic molecular cage materials, metal-organic framework materials, metal-organic hybrid materials, metal-organic polymer materials, porous framework crystalline materials, and metal oxide materials.

[0056] As preferred in this embodiment, the counter electrode layer 2 is made of but not limited to one or more of polytetrafluoroethylene, polyvinylidene fluoride, polydimethylsiloxane, polyimide, ethyl cellulose, polyamide, melamine formaldehyde, polyurethane elastomer, styrene propylene copolymer, styrene butadiene copolymer, artificial fiber, natural rubber, polyacrylonitrile, polyvinylidene chloride, polyethylene, polypropylene, and polyvinyl chloride.

[0057] As preferred in this embodiment, the conductive transmission layer 3 is made of but not limited to a mixture of one or more of copper (Cu), silver (Ag), aluminum (Al), silicon (Si), germanium (Ge), graphite, carbon fiber, polyacetylene, polyaniline, conductive ceramics, and conductive rubber.

[0058] As preferred in this embodiment, the adhesive is made by mixing one or more of but not limited to epoxy resin, phenolic resin, amino resin, polyurethane resin, unsaturated polyester, acrylic resin, rubber base material, natural polymer material, and water-based latex base material.

[0059] As a preferred embodiment of the present invention, the size of the electrode strip 4 is 0.001-50 μm, and the thickness is 0.1-100 μm. The thickness of the electrode strip 4, the counter electrode layer 2, and the conductive transmission layer 3 are all 0.1-100 μm.

[0060] As a preferred embodiment of the present invention, the signal acquisition device 5 is an oscilloscope, which is connected to an analog-to-digital conversion system. The acquired electrical signal is converted into an analog signal through the analog-to-digital conversion system, and the analog signal is processed accordingly to obtain a coding signal and a speed signal.

[0061] In this embodiment, Figure 4 As shown, specific coding information is obtained by controlling the arrangement, combination, position, spacing, and material of the array of electrode strips 4. Figure 5 It can be seen from the figure that the system of this embodiment has good cycle stability during the detection process. Figure 8 The figure shows the response time of the system of this embodiment to reach the peak value within one cycle.

[0062] In addition, the detection system in this embodiment can be applied to smart logistics and smart homes.

[0063] In this embodiment, the spacing between adjacent electrode strips 4 is set to a fixed spacing. Therefore, the time difference between the signal peaks is the time difference of the rolling displacement. The speed of the rolling device 1 is obtained according to the relationship between the displacement and the time, as shown in FIG. Fig.10 and 11 shown.

[0064] Example 2

[0065] like Figure 2 As shown, this embodiment provides an array-type self-powered encoding and speed detection system, including a rolling device 1, an electrode layer 2, a conductive transmission layer 3, an electrode strip 4, a signal acquisition device 5, and a support workbench 7; the rolling device 1 is provided with an electrode layer 2 on its outer surface, and in this embodiment, the electrode layer 2 is provided on the outer surface of the rolling device 1 by an adhesive. The rolling device 1 is connected to the signal acquisition device 5 and the rectifier 8 as a positive electrode through a wire; the electrode strip 4 is arranged in an array on the conductive transmission layer 3 and connected to the conductive transmission layer 3; the conductive transmission layer 3 is arranged on the support workbench 7; the conductive transmission layer 3 is connected to the signal acquisition device 5 and the rectifier as a negative electrode through a wire, and the rectifier 8 is also connected to the energy storage device 9.

[0066] In this embodiment, the rolling device 1 rolls on a workbench 7 provided with an array of electrode strips 4 through a driving device 6. During the rolling process, the electrode layer 2 contacts or separates from the array of electrode strips 4, thereby generating an electrical signal, which is then collected by a signal acquisition device 5. The generated electrical signal is rectified by a rectifying device 8 and stored in an energy storage device 9.

[0067] The conductive transmission layer 3 in this embodiment includes a vertical stripe portion, and a plurality of horizontal stripe portions for arranging the electrode strips 4 extend from the vertical stripe portion.

[0068] In this embodiment, the rolling device 1 and the driving device 6 are consistent with those in Embodiment 1, and the materials used for the electrode layer 2, the conductive transmission layer 3, and the electrode strips 4 are the same as those in Embodiment 1.

[0069] like Figure 6 As shown, in this embodiment, the rolling device 1 can also be driven manually to roll, such as Figure 7 FIG. 1 is a schematic diagram of a rolling device 1 during a rolling process. During the rolling process, the rolling device 1 contacts the array electrode strips 4 disposed on the conductive transmission layer 3. The response time to reach the peak value in one cycle is as follows: Fig. 9 shown.

[0070] Example 3

[0071] This embodiment provides an array type self-powered encoding and speed detection method, comprising the following steps:

[0072] S1), controlling the rolling device 1 with the array of electrode strips 4 to roll on the conductive transmission layer 3 provided with the counter electrode layer 2 through the driving device 6, and generating electrical signals by contacting or separating with the counter electrode layer 2 during the rolling process, and collecting the generated electrical signals through the signal collection device 5;

[0073] S2), converting the electrical signal collected by the signal collection device 5 into a peak signal and then processing it to obtain a series of specific coding information and speed information.

[0074] In this embodiment, a series of specific coded information can be obtained by arranging the peak values ​​of the point signals in a specific order of magnitude, and the speed signal is calculated by the change frequency or response time difference between the spacing of the array electrode strips and the peak value of the electrical signal.

[0075] S3) Convert the coding information and speed information into digital coding signals and digital speed information through analog-to-digital conversion.

[0076] In this embodiment, the digital coded signal includes, but is not limited to, physical property information such as the position, motion state, and environmental parameters of the object; identity information such as production, transportation, and distribution; and interaction and control information in the fields of logistics, retail, and agriculture. Different digital coded signals are obtained by controlling the arrangement and combination mode, position, spacing, and material of the array-type electrode strips.

[0077] The above embodiments and descriptions are only for illustrating the principles and best embodiments of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, all of which fall within the scope of the present invention to be protected.

Claims

1. An array-type self-powered encoding and speed detection system, characterized in that: The invention comprises a rolling device (1), an electrode layer (2), a conductive transmission layer (3), electrode strips (4), a signal acquisition device (5), a rectifier (8) and an energy storage device (9); an array of electrode strips (4) is arranged on the outer surface of the rolling device (1); the rolling device (1) is connected to the signal acquisition device (5) and the rectifier (8) as a positive electrode through wires; A counter electrode layer (2) is arranged on the conductive transmission layer (3), and the counter electrode layer (2) is bonded to the conductive transmission layer (3) by means of an adhesive; the conductive transmission layer (3) is connected as a negative electrode to a signal acquisition device (5) and a rectifier device (8) respectively by means of wires; The rolling device (1) rolls on the counter electrode layer (2) via a driving device (6). During the rolling process, the array of electrode strips (4) contacts or separates from the counter electrode layer (3), thereby generating an electrical signal. The generated electrical signal is collected by a signal collection device (5), rectified by a rectifier device (8), and stored in an energy storage device (9).

2. An array-type self-powered encoding and speed detection system according to claim 1, characterized in that: The rolling device (1) comprises a conductive roller (11), the conductive roller (11) is connected to a connecting shaft (12) via a rolling bearing, and the conductive roller (11) is connected to a signal acquisition device (5) and a rectifier device (8) as a positive electrode via a wire; the array of electrode strips (4) is arranged on the outer surface of the conductive roller (11) and contacts the electrode layer (2) during the rolling process.

3. The array-type self-powered encoding and speed detection system according to claim 1, characterized in that: The driving device (6) comprises a driving motor (61), a connecting rod assembly (62), and a U-shaped frame (63); the driving motor (61) is connected to the U-shaped frame (63) via the connecting rod assembly (62); the U-shaped frame (63) is connected to the connecting shaft (12) of the rolling device (1); the driving motor (61) drives the connecting rod assembly (62) to drive the rolling device (1) to roll back and forth on the electrode layer (2).

4. The array-type self-powered encoding and speed detection system according to claim 1, characterized in that: The electrode strips (4) are made of, but not limited to, one or more of metal-organic molecular cage materials, metal-organic framework materials, metal-organic hybrid materials, metal-organic polymer materials, porous framework crystalline materials, and metal oxide materials.

5. The array-type self-powered encoding and speed detection system according to claim 1, characterized in that: The counter electrode layer (2) is made of, but not limited to, one or more of polytetrafluoroethylene, polyvinylidene fluoride, polydimethylsiloxane, polyimide, ethyl cellulose, polyamide, melamine formaldehyde, polyurethane elastomer, styrene propylene copolymer, styrene butadiene copolymer, artificial fiber, natural rubber, polyacrylonitrile, polyvinylidene chloride, polyethylene, polypropylene, and polyvinyl chloride.

6. The array-type self-powered encoding and speed detection system according to claim 1, characterized in that: The conductive transmission layer (3) is made of, but not limited to, a mixture of one or more of copper (Cu), silver (Ag), aluminum (Al), silicon (Si), germanium (Ge), graphite, carbon fiber, polyacetylene, polyaniline, conductive ceramics, and conductive rubber.

7. An array-type self-powered encoding and speed detection system, characterized in that: The invention comprises a rolling device (1), a counter electrode layer (2), a conductive transmission layer (3), an electrode strip (4), and a signal acquisition device (5); the counter electrode layer (2) is arranged on the outer surface of the rolling device (1) via an adhesive; the rolling device (1) is used as a positive electrode and is connected to the signal acquisition device (5) and the rectifier device (8) via wires; An array of electrode strips (4) is arranged on the conductive transmission layer (3); the conductive transmission layer (3) is used as a negative electrode and is connected to a signal acquisition device (5) and a rectifier device (8) respectively through wires; The rolling device (1) rolls on the array of electrode strips (4) via a driving device (6). During the rolling process, the electrode layer (2) contacts or separates from the array of electrode strips (4), thereby generating an electrical signal. The generated electrical signal is collected by a signal collection device (5), rectified by a rectifier device (8), and stored in an energy storage device (9).

8. An array-type self-powered encoding and speed detection method, characterized in that: The method uses the detection system according to any one of claims 1 to 6 to detect the coding information and the speed information, and the method comprises the following steps: S1), controlling a rolling device (1) having an array of electrode strips (4) to roll on a counter electrode layer (2) through a driving device (6), wherein during the rolling process, the array of electrode strips (4) generates an electrical signal by contacting or separating from the counter electrode layer (2), and the generated electrical signal is collected through a signal collection device (5); S2), converting the electrical signal collected by the signal collection device (5) into a peak signal and then converting it into a digital signal through analog-to-digital conversion; S3), converting the digital signal peak into a series of coding information and speed information.

9. The array-type self-powered encoding and speed detection method according to claim 8, characterized in that: In step S3), specific coding information and speed information are obtained by controlling the arrangement and combination mode, position, spacing, and material of the array-type electrode strips (4); wherein, specific coding information is obtained by arranging the peak values ​​of the electrical signal in a specific order of magnitude; and speed information is calculated by the change frequency or response time difference between the spacing of the array-type electrode strips (4) and the peak value of the electrical signal.

10. An application of array-type self-powered encoding and speed detection, characterized in that: The detection system described in any one of claims 1 to 7 is used in sensing fields including but not limited to smart logistics and smart home.

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