Data acquisition module

Abstract

The utility model relates to a data acquisition module. The data acquisition module comprises a shell, a data acquisition mainboard arranged in the shell, a data output interface integrated on the data acquisition mainboard, a power interface integrated on the data acquisition mainboard, and a data input interface connected with a public port of a charging pile, at least one main control chip and one storage chip are arranged on the data acquisition mainboard; the data output interface and the data input interfaces are respectively positioned on two side walls of the data acquisition mainboard, and the number of the data input interfaces is two; the shell is provided with two first butt joint windows corresponding to the data output interface and the power interface respectively, and the shell is provided with two second butt joint windows corresponding to the two data input interfaces; according to the utility model, the overall structure is simple, the operation is convenient, the later data acquisition of operation and maintenance personnel can be facilitated through the data input port and the data output interface, and the operation of the operation and maintenance personnel is greatly facilitated.

Description

Technical Field

[0001] This utility model relates to the field of data acquisition technology, and in particular to a data acquisition module. Background Technology

[0002] The intelligent upgrading of new energy vehicle infrastructure presents new opportunities.

[0003] At the equipment operation and maintenance level, IoT-based intelligent data acquisition modules can monitor over 300 operational parameters of key components of charging piles (charging interfaces, power modules, cooling systems, etc.) in real time through public interfaces, and dynamically update the fault feature database using advanced algorithms. Blockchain technology is used to timestamp and distribute the collected data, forming an immutable database covering the entire equipment lifecycle. Operation and maintenance personnel can trace the evolution path of module faults through on-chain data, and combined with fault tree analysis models preset by smart contracts, the traditional average hourly fault location time can be reduced to within minutes, significantly improving efficiency.

[0004] Therefore, in order to keep up with the development of cutting-edge technologies in the industry and take into account the cost, convenience and efficiency of operation, it is necessary to develop a module that makes it easier and more reliable for operation and maintenance personnel to perform data collection operations. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a data acquisition module that can effectively solve the aforementioned problems.

[0006] To achieve the above requirements, the technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A data acquisition module is provided, including a housing, a data acquisition motherboard disposed inside the housing, a data output interface integrated on the data acquisition motherboard, a power interface integrated on the data acquisition motherboard, and a data input interface connected to a common port of a charging pile; the data acquisition motherboard has at least one main control chip and one storage chip; the data output interface and the data input interface are respectively located on two side walls of the data acquisition motherboard, and there are two data input interfaces; the housing has two first docking windows corresponding to the data output interface and the power interface, and the housing has two second docking windows corresponding to the two data input interfaces.

[0008] The data acquisition module of this utility model includes a reset button and a power button on the data acquisition motherboard. The outer casing has two operation windows corresponding to the reset button and the power button. The reset button and the power button are located on the same side of the data acquisition motherboard as the first docking window.

[0009] The data acquisition module of this utility model has a data input interface that is a ribbon cable socket and a data output interface that is a Type-C interface.

[0010] The data acquisition module of this utility model includes an outer shell body and a mounting base detachably connected to the outer shell body; the mounting base has an extension at one end opposite to the outer shell body, the extension is flush with the end face of the mounting base opposite to the outer shell body, and the extension has screw holes.

[0011] The data acquisition module of this utility model has at least two extensions, which are respectively located on two opposite sides of the mounting base.

[0012] In the data acquisition module of this utility model, a strong magnet is embedded on the end face of the mounting base away from the outer shell body.

[0013] The data acquisition module of this utility model includes a positioning groove on the mounting base for positioning the outer shell body, a positioning boss on the bottom surface of the positioning groove, and a positioning groove on the outer shell body corresponding to the positioning boss and adapted to it. The positioning boss and the inner wall of the positioning groove are detachably connected.

[0014] The data acquisition module of this utility model has ribs on both opposite inner walls of the positioning groove. The ribs are arranged along the insertion direction of the positioning boss. The side wall of the positioning boss is provided with a guide limiting groove for guiding and limiting the ribs. When assembled, the ribs are tightly fitted with the inner wall of the guide limiting groove.

[0015] In the data acquisition module of this utility model, the ribs extend to the bottom surface of the positioning groove. The adjacent ends of the two ribs on the two opposite inner sidewalls of the positioning groove are provided with inclined surfaces. The two inclined surfaces enclose to form a bayonet structure with the opening gradually narrowing towards the positioning boss. The positioning boss is provided with a snap-fit ​​part that matches the bayonet structure.

[0016] In the data acquisition module of this utility model, the ribs are provided in multiple parallel configurations.

[0017] The beneficial effects of this utility model are as follows: When in use, maintenance personnel install the module as a whole inside the charging pile and connect the common terminal of the charging pile to the data input interface. Then, they only need to periodically or when the charging pile malfunctions, they can obtain the operating data of the charging pile through the data output interface. The operation is convenient, which greatly facilitates the operation and maintenance personnel, further improves the maintenance efficiency, and reduces the difficulty of maintenance and troubleshooting. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall bird's-eye view of this utility model.

[0020] Figure 2 yes Figure 1 The exploded view in the image.

[0021] Figure 3 This is a side view of the positioning boss of this utility model.

[0022] Figure 4 yes Figure 1 Another perspective view.

[0023] Figure 5 This is a view from the other side of the data acquisition motherboard of this utility model. Detailed Implementation

[0024] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] Furthermore, the terms indicating orientation, such as "up," "down," "left," "right," "upper end," "lower end," and "longitudinal," are all based on the posture and position of the device or equipment described in this solution during normal use.

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] The data acquisition module of the preferred embodiment of this utility model, such as Figure 1-5 As shown, the system includes a housing 10, a data acquisition motherboard 20 located inside the housing 10, a data output interface 30 integrated on the data acquisition motherboard 20, a power interface 40 integrated on the data acquisition motherboard 20, and a data input interface 50 connected to the common port of the charging pile. The housing 10 is specifically circular. The data acquisition motherboard 20 has at least one main control chip 60 and one storage chip 70. The main control chip 60 can be an STM32F103, STM32H743ZI, AD2S1210, or AD2S1210WDST, while the storage chip 70 can be a common NAND Flash, NOR Flash, DRAM, or SRAM. Preferably, the main control chip 60 in this solution uses an STM32H743ZI (compliant with ISO26262 functional safety standard) supporting ARM TrustZone technology. Through a built-in encryption coprocessor, dynamic signatures can be implemented during the data acquisition stage to ensure data security and consistency. The storage chip 70 uses an Infineon SLC37 series NOR Flash chip (with integrated Physical Unclonable Function (PUF)).

[0030] Furthermore, the data output interface 30 and the data input interface 50 are located on the two side walls of the data acquisition motherboard, respectively. There are two data input interfaces 50. By placing the two interfaces on the two sides of the housing 10, the installation interference between the connecting cables can be reduced, making the wiring clear. The housing 10 has two first docking windows 80 corresponding to the data output interface 30 and the power interface 40, respectively, to facilitate the connection of the power cable and the insertion of the data acquisition cable by operation and maintenance personnel. The housing 10 has two second docking windows 90 corresponding to the two data input interfaces 50, to facilitate the connection with the common terminal interface of the charging pile.

[0031] Furthermore, the data acquisition motherboard 20 also supports LoRaWAN / 5G NB-IoT dual-mode communication (compliant with 3GPPRelease 15 standard), and can be additionally equipped with a ceramic substrate LDS antenna to realize on-chain data broadcasting. It also integrates a blockchain communication submodule that includes a lightweight node based on the Substrate framework (storage footprint <8MB) and a zk-SNARKs accelerator built on Xilinx Artix-7 series FPGA (supporting Spartan algorithm). This enables the generation of verifiable privacy reports locally and supports cross-chain interaction with the Hyperledger Fabric consortium chain, facilitating the mapping of charging pile operation data to RWA tokens using an asset encapsulation protocol compliant with ERC-3525 standard.

[0032] In practical application management, value separation can be achieved through dual data channels formed by operation and maintenance data streams and asset data streams:

[0033] Operation and maintenance data flow: Fault characteristic data (such as IGBT temperature rise curve, insulation resistance value) are calculated off-chain, and then generated as CID fingerprints through IPFS distributed storage and written into the blockchain for evidence storage (for example, a Merkle Root with timestamp is generated every 5 minutes).

[0034] Asset data flow: Charging pile operation metrics (charging volume, revenue sharing, etc.) are processed using zero-knowledge proofs to generate verifiable credentials, which are then encapsulated into dynamic NFTs using the ERC-3525 standard. Each NFT corresponds to an on-chain digital twin of a specific charging pile and supports fragmented transactions on the Web3 platform.

[0035] The data input interface 50 adopts a tamper-proof ribbon cable socket design and integrates an ADI AD7606C-18 sampling chip and an ADuM3151 isolation module. It can collect 12 types of parameters such as harmonic distortion rate and insulation impedance of the charging pile in real time, and realize trusted processing of end-side data through the built-in AES-256 hardware encryption engine.

[0036] When in use, operation and maintenance personnel can install the module into the charging pile in advance and connect the common terminal of the charging pile's control host to the data input interface. Then, they only need to periodically or when the charging pile malfunctions, they can obtain various operating data of the charging pile through the data output interface 30. The operation is convenient and greatly facilitates the operation and maintenance personnel, further improving the efficiency of data collection and reducing the difficulty of troubleshooting.

[0037] Furthermore, while retaining the original modules' convenient maintenance features, the organic integration of trusted hardware and blockchain technology not only solves the timeliness problem of equipment operation and maintenance, but also provides a verifiable technical foundation for the digital circulation of charging pile assets, which is in line with the current level of technological development.

[0038] In this embodiment, the data acquisition motherboard 20 is also provided with a reset button 100 and a switch button 110. The outer casing 10 is provided with two operation windows 120 corresponding to the reset button 100 and the switch button 110. The reset button 100 and the switch button 110 are both located on the same side of the data acquisition motherboard 20 as the first docking window 80, so as to facilitate operation start and stop.

[0039] In this embodiment, the data input interface 50 is a ribbon cable socket, and the data output interface 30 is a Type-C interface. Of course, it can also be other interfaces such as a USB interface.

[0040] In this embodiment, the outer casing 10 includes an outer casing body 101 and a mounting base 102 detachably connected to the outer casing body 101. The outer casing body 101 is circular, and the mounting base 102 is cuboid and parallel to the diameter of the outer casing body 101. The mounting base 102 has an extension 130 at one end away from the outer casing body 101. The extension 130 is flush with the end face of the mounting base 102 away from the outer casing body 101. The extension 130 has screw holes 140. There are at least two extensions 130, which are located on two opposite sides of the mounting base 102. The screw holes 140 on the two extensions 130 facilitate fixing the mounting base 102 to the bracket with bolts. The detachable connection design of the outer casing body 101 and the mounting base 102 facilitates the overall replacement of the outer casing body 101 and its internal components in the future, achieving the purpose of compatibility with blockchain module upgrades. Maintenance personnel can replace the communication module by pulling the outer casing, without having to remove screws every time the module is replaced, reducing unnecessary operation steps.

[0041] The ferrite silicone composite shielding layer 230 at the connection between the outer shell 101 and the base can suppress interference in the 50MHz-6GHz frequency band (meeting ISO 7637-2 electromagnetic compatibility requirements).

[0042] In this embodiment, a strong magnet 150 is embedded on the end face of the mounting base 102 away from the outer shell body 101 to assist in positioning during the installation process and further facilitate installation and disassembly.

[0043] In this embodiment, the mounting base 102 is provided with a positioning groove 160 for positioning the outer shell body 101. The positioning groove 160 is a concave arc shape that matches the outer arc side wall of the outer shell body 101 and penetrates both ends of the outer shell 10. A positioning boss 170 is provided on the bottom surface of the positioning groove 160. The end of the positioning boss 170 is semi-circular. A positioning groove 180 is provided on the outer shell body 101 corresponding to the positioning boss 170 and is adapted to it. Correspondingly, the bottom surface of the positioning groove 180 is also semi-circular. The inner wall of the positioning boss 170 and the positioning groove 180 are detachably connected to hide the connection structure and increase the overall appearance of the module.

[0044] In this embodiment, ribs 181 are provided on both opposite inner sidewalls of the positioning groove 180. The ribs 181 are inserted along the direction of the positioning boss 170. The sidewall of the positioning boss 170 is provided with a guide limiting groove 171 to guide and limit the ribs 181. When assembled, the ribs 181 are tightly fitted with the inner wall of the guide limiting groove 171 to achieve an interference fit after installation, thereby increasing the stability of the fit between the positioning boss 170 and the positioning groove 180 and reducing the risk of accidental detachment of the mounting base 102 and the outer shell 101.

[0045] In this embodiment, the ribs 181 all extend to the bottom surface of the positioning groove 160. The adjacent ends of the two ribs 181 on the two opposite inner walls of the positioning groove 180 are provided with inclined surfaces 190. The two inclined surfaces 190 enclose a latching structure 200 whose opening gradually narrows towards the positioning boss 170. The positioning boss 170 is provided with a corresponding latching portion 210 that matches the latching structure 200. This latching portion 210 is formed between the adjacent ends of two radially parallel guide limiting grooves 170, and its radial cross-section... The surface is consistent with the bayonet structure 200, and the outer diameter of the former is slightly larger than that of the latter. When the positioning boss 170 is inserted into the positioning groove 180, the bayonet structure 200 tightly covers the outside of the snap-fit ​​part 210, thereby pulling the outer shell body 101 tight and fixing it in the positioning groove 160. When it is necessary to disassemble the outer shell body 101, the operation and maintenance personnel can pull it outward to remove it. When installing, the reverse operation can fix the outer shell body 101 through the cooperation of the positioning boss 170 and the snap-fit ​​part 210.

[0046] In this embodiment, multiple ribs 181 are provided and are parallel to each other, that is, they are evenly arranged along the axial direction of the outer shell body 101 to further play a stabilizing role.

[0047] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A data acquisition module, characterized by, The device includes a housing, a data acquisition motherboard located inside the housing, a data output interface integrated on the data acquisition motherboard, a power interface integrated on the data acquisition motherboard, and a data input interface connected to a common port of a charging pile. The data acquisition motherboard has at least one main control chip and one storage chip. The data output interface and the data input interface are located on two side walls of the data acquisition motherboard, and there are two data input interfaces. The housing has two first docking windows corresponding to the data output interface and the power interface, and two second docking windows corresponding to the two data input interfaces.

2. The data acquisition module of claim 1, wherein, The data acquisition motherboard is also equipped with a reset button and a power button. The outer casing has two operation windows corresponding to the reset button and the power button. The reset button and the power button are located on the same side of the data acquisition motherboard as the first docking window.

3. The data acquisition module of claim 1, wherein, The data input interface is a ribbon cable socket, and the data output interface is a Type-C interface.

4. The data acquisition module of claim 1, wherein, The housing includes a housing body and a mounting base detachably connected to the housing body; the mounting base has an extension at one end opposite to the housing body, the extension is flush with the end face of the mounting base opposite to the housing body, and the extension has screw holes.

5. The data acquisition module of claim 4, wherein, The extension is provided in at least two parts and is located on two opposite sides of the mounting base.

6. The data acquisition module of claim 4, wherein, A powerful magnet is embedded on the end face of the mounting base that is away from the outer shell body.

7. The data acquisition module of claim 4, wherein, The mounting base is provided with a positioning groove for positioning the outer shell body. A positioning boss is provided on the bottom surface of the positioning groove. The outer shell body is provided with a positioning groove that matches the positioning boss. The positioning boss and the inner wall of the positioning groove are detachably connected.

8. The data acquisition module of claim 7, wherein, The positioning groove has ribs on its two opposite inner sidewalls. The ribs are arranged in the direction of insertion of the positioning boss. The sidewall of the positioning boss has a guide limiting groove for guiding and limiting the ribs. When assembled, the ribs are tightly fitted with the inner wall of the guide limiting groove.

9. The data acquisition module of claim 8, wherein, The ribs extend to the bottom surface of the positioning groove. The adjacent ends of the two ribs on the two opposite inner sidewalls of the positioning groove are provided with inclined surfaces. The two inclined surfaces enclose to form a bayonet structure with the opening gradually narrowing towards the positioning boss. The positioning boss is provided with a snap-fit ​​part that matches the bayonet structure.

10. The data acquisition module of claim 8, wherein, The ribs are provided in multiple quantities and are parallel to each other.

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