CN221768283U - WAPI-based access devices - Google Patents

Abstract

The application provides an access device based on WAPI, comprising: the device comprises a device main board, a first communication module, a second communication module, an interface module and a first power module; the equipment main board is connected with the interface module and the first communication module and receives information transmitted by the interface module and the first communication module; the first communication module is connected with the equipment main board, receives information through a physical interface and performs information interaction with the equipment main board; the second communication module is connected with the equipment main board, receives information through a virtual port and performs information interaction with the equipment main board; the first power module provides power support for the device motherboard.

Description

WAPI-based access devices

Technical Field

The present application relates to the field of communication technology for power business scenarios, and in particular to an access device based on WAPI.

Background Art

The existing security encryption chips based on the State Grid core are divided into different models and categories according to different power businesses. This may easily lead to the inability to use the same security encryption chip when there are multiple southbound devices that need to access the edge IoT device gateway in the same power scenario. Instead, the use of different State Grid core security encryption chips will directly increase a lot of hardware costs, which is not conducive to the scene reuse and promotion of equipment applications.

WAPI is a wireless network security technology with independent intellectual property rights proposed by China based on the 802.11 wireless protocol. It is also a national mandatory standard for wireless LAN security. WAPI technology can meet the requirements of security compliance and independent control while replacing traditional WiFi communication technology. The IEEE 802.11i/WiFi led by the United States has problems in identity authentication security, such as uncontrollable service access, login through password verification only, two-way authentication between wireless AP and terminal, and weak authentication capability; in terms of encryption algorithm, it is based on the cryptographic algorithm released by the US NIST, which has certain security risks; in terms of device role security, it adopts a binary identity authentication method between terminal and authentication server. This traditional WiFi technology does not meet the power safety requirements and cannot access the power intranet.

Utility Model Content

In view of this, the purpose of the present application is to propose an access device based on WAPI.

Based on the above purpose, the present application provides an access device based on WAPI, characterized in that it includes: a device mainboard, a first communication module, a second communication module and a first power module;

The device mainboard is connected to the interface module and the communication module to receive information transmitted by the interface module and the communication module;

The first communication module is connected to the device mainboard, receives information through a physical interface, and performs information exchange with the device mainboard;

The second communication module is connected to the device mainboard, receives information through the virtual port, and exchanges information with the device mainboard;

The first power supply module provides power support for the device mainboard

Optionally, the device mainboard includes: a core board, an expansion interface and a WAPI module, and the expansion interface and the WAPI module are both connected to the core board;

The expansion interface is used to expand the interface of the core board;

The WAPI module is used to provide WAPI network communication; wherein the WAPI module is an embedded WAPI module.

Optionally, the device mainboard further includes: a second power supply module;

The second power module is connected to the core board and the WAPI module, and is used to reduce the voltage provided by the first power module to the device mainboard.

Optionally, the extended interface includes: a physical transmission interface and a virtual transmission interface;

The physical transmission interface is used to expand the USB2.0 led out of the core board into a four-way USB2.0 interface;

The virtual transmission interface is used to convert the RGMII interface derived from the core board into a four-way Gigabit Ethernet interface.

Optionally, the first communication module includes: a USB interface, a storage device interface and an Ethernet interface.

Optionally, the second communication module includes: a southbound platform device communication interface and a northbound platform device communication interface.

Optionally, the southbound platform device communication interface includes: a ZigBee communication module and a LoRa communication module;

The LoRa communication module and the ZigBee communication module are connected to the device mainboard via a USB2.0 interface.

Optionally, the northbound platform device communication interface includes: a 4/5G communication module and a MESH communication module;

The 4/5G communication module is connected to the device mainboard via a USB3.0 interface;

The MESH communication module is connected to the device mainboard via an Ethernet interface.

Optionally, the first power module provides power support to the device mainboard according to the filtered voltage.

Optionally, the access device further includes: a security encryption chip module;

The security encryption chip module is connected to the device mainboard via the SPI interface of the device mainboard.

From the above, it can be seen that the WAPI-based access device provided by the present application includes: a device mainboard, a first communication module, a second communication module and a first power module; the device mainboard is connected to the interface module and the communication module to receive information transmitted by the interface module and the communication module; the first communication module is connected to the device mainboard, receives information through a physical interface, and interacts with the device mainboard; the second communication module is connected to the device mainboard, receives information through a virtual port, and interacts with the device mainboard; the first power module provides power support for the device mainboard. The present application sets up multiple protocols and multiple interfaces to achieve the use of the same set of intelligent integrated access equipment in different power application scenarios, unify the access technology of southbound equipment, increase the application scope of WAPI intelligent integrated access equipment, and broaden the market scope. At the same time, for users, it reduces the cost of repeated investment in multiple access equipment, and also reduces the time and labor costs of equipment operation and management.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic block diagram of an access device network architecture according to an embodiment of the present application;

FIG2 is a schematic diagram of the structure of a WAPI-based access device according to an embodiment of the present application;

FIG3 is a schematic diagram of the overall structure of a WAPI-based access device according to an embodiment of the present application;

FIG4 is a schematic block diagram of an embedded WAPI module according to an embodiment of the present application;

FIG5 is a schematic diagram of a power supply relationship of an access device according to an embodiment of the present application;

FIG6 is a schematic diagram of the connection relationship of the DIDO interface modules according to an embodiment of the present application;

FIG7 is a schematic diagram of the connection relationship of 5G communication modules in an embodiment of the present application;

FIG8 is a schematic diagram of the connection relationship of the ZigBee modules in an embodiment of the present application;

FIG9 is a schematic diagram of the connection relationship of the LoRa modules in an embodiment of the present application;

FIG10 is a schematic diagram of the RS485/RS232 shared interface connection relationship of an embodiment of the present application;

FIG11 is a schematic diagram of the connection relationship of the HPLC modules in an embodiment of the present application;

FIG12 is a schematic diagram of the connection relationship of the State Grid core security encryption chip module according to an embodiment of the present application;

FIG. 13 is a schematic diagram of an access device application architecture according to an embodiment of the present application.

DETAILED DESCRIPTION

In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

With the advancement of smart grid construction and digital transformation, new services represented by robot inspection, mobile operation, and Internet of Things data collection have emerged. These services generally have the characteristics of large bandwidth, high mobility, and large connections. It is urgent to build a wireless network covering the entire station to provide wireless access channels for the terminal part for substation wireless high-definition video monitoring, inspection robots, mobile office and operation, remote dispatch, emergency communication, and other intelligent monitoring and surveillance system applications, to solve the safe and reliable access of high-bandwidth services and the last-mile communication needs of various intelligent sensing services.

The power transmission scenario includes business scenarios such as real-time perception and intelligent diagnosis of line status, panoramic perception and early warning decision-making of natural disasters, multi-dimensional integration of air, space and ground, and collaborative autonomous inspection, intelligent assistance and dynamic protection of line maintenance, and holographic perception and intelligent management and control of high-voltage cables. In the power transmission scenario, insufficient communication capabilities, especially broadband wide-area communication capabilities, are the key issues restricting the intelligent and digital upgrade of power transmission lines. The deployed communication network cannot fully support the business needs of high-definition visual monitoring, drone inspections, line inspections, and other large-bandwidth communication network backhaul services, resulting in insufficient real-time perception capabilities of power transmission line status in remote areas, and unable to support intelligent IoT monitoring of the main body status and channel environment, which seriously affects the active analysis and intelligent disposal of line faults, defects and hidden dangers.

The substation scenario includes comprehensive monitoring of main and auxiliary equipment of substations, one-button sequential control of switching operations, intelligent inspection of substations, intelligent management and control of substations, active warning of defects in substation equipment, intelligent decision-making of substation equipment failures, and lean management of substation equipment operation and maintenance costs. In the substation scenario, with the deepening of substation monitoring and perception, a large number of sensors and monitoring devices will be widely deployed. The traditional optical fiber network has insufficient deep coverage, and broadband wireless networks are required to support the reliable access of discretely distributed massive sensor terminals to solve the problem of reliable access to large-bandwidth services such as partial discharge monitoring, real-time video image monitoring, robot inspection, and mobile inspection. According to the analysis of substation business needs, video monitoring, robot inspection, and various future IoT services have high bandwidth requirements. However, due to the technical system, LTE230 networks are difficult to meet the access requirements of such services. WAPI (encrypted WiFi) technology can provide a larger transmission bandwidth to ensure the access of such services. At the same time, by introducing a higher security protocol, it can also ensure the security and reliability of equipment access. Therefore, when selecting routes for substation wireless network construction, WAPI technology is preferred for wireless signal coverage of the entire station.

The power distribution scenario includes business scenarios such as perception of distribution network operation status, improvement of distribution business integration, lean management of quality services, comprehensive optimization of source, network, load and storage, and co-construction of enterprise platform ecology, involving different application scenarios such as pole-mounted transformer substations, box transformer substations, and distribution room substations. In the field of power distribution Internet of Things, a power distribution cloud master station system has been built. The communication service mainly provides functions such as equipment access, equipment management, and data aggregation, and connects to the edge devices of the distribution substation area. Among them, large-bandwidth services such as online monitoring of partial discharge in distribution boxes and real-time video image monitoring require secure and reliable wireless communication technology support.

As described in the background technology section, the existing security encryption chips based on the State Grid core are divided into different models and categories according to different power services. This may easily lead to the inability to use the same security encryption chip when there are multiple southbound devices that need to access the edge IoT device gateway in the same power scenario. Instead, the use of different State Grid core security encryption chips directly increases a lot of hardware costs, which is not conducive to the scene reuse and promotion of equipment applications.

WAPI is a wireless network security technology with independent intellectual property rights proposed by China based on the 802.11 wireless protocol. It is also a national mandatory standard for wireless LAN security. WAPI technology can meet the requirements of security compliance and independent control while replacing traditional WiFi communication technology. The IEEE 802.11i/WiFi led by the United States has problems in identity authentication security, such as uncontrollable service access, login through password verification only, two-way authentication between wireless AP and terminal, and weak authentication capability; in terms of encryption algorithm, it is based on the cryptographic algorithm released by the US NIST, which has certain security risks; in terms of device role security, it adopts a binary identity authentication method between terminal and authentication server. This traditional WiFi technology does not meet the power safety requirements and cannot access the power intranet.

In view of this, the embodiment of the present application provides an access device based on WAPI, including: a device mainboard, a first communication module, a second communication module and a first power module; the device mainboard is connected to the interface module and the communication module, and receives information transmitted by the interface module and the communication module; the first communication module is connected to the device mainboard, receives information through a physical interface, and interacts with the device mainboard; the second communication module is connected to the device mainboard, receives information through a virtual port, and interacts with the device mainboard; the first power module provides power support for the device mainboard. This application sets up multiple protocols and multiple interfaces to achieve the use of the same set of intelligent integrated access equipment in different power application scenarios, unify the access technology of southbound equipment, increase the application scope of WAPI intelligent integrated access equipment, and broaden the market scope. At the same time, for users, it reduces the cost of repeated investment in multiple access equipment, and also reduces the time and labor costs of equipment operation and management.

Furthermore, as shown in FIG. 1 , the present application also provides access to a security gateway and an in-station system in sequence according to an access device, and then performs network communication with a main station system.

As shown in FIG2 , the WAPI-based access device includes: a device mainboard, a first communication module, a second communication module, and a first power supply module;

The device mainboard is connected to the interface module and the communication module to receive information transmitted by the interface module and the communication module;

The first communication module is connected to the device mainboard, receives information through a physical interface, and performs information exchange with the device mainboard;

The second communication module is connected to the device mainboard, receives information through the virtual port, and exchanges information with the device mainboard;

The first power supply module provides power support for the device mainboard.

In some optional implementations, as shown in FIG3 (the overall architecture diagram of the access device), the device mainboard is a Linux-based WAPI intelligent integrated access device mainboard for typical power business scenarios, and the device mainboard includes: a core board, an expansion interface, and a WAPI module, wherein the expansion interface and the WAPI module are both connected to the core board; the expansion interface is used to expand the interface of the core board; and the WAPI module is used to provide WAPI network communication. Among them, as shown in FIG4 (WAPI module), the WAPI module is an embedded WAPI module. The embedded WAPI module is connected to the device mainboard through the USB3.0 interface, so as to support the access site business terminal to provide WAPI network communication support, support 802.11a/b/g/n/ac and other wireless protocols, and can support GB15629.11, WAPIPSK, WAPI CERT, WPA, WEP and other communication standards, ensuring the high communication rate performance requirements of WiFi.

In some optional implementations, the device mainboard is equipped with DC-DC, USB Hub, PHY YT8614 and USB to UART modules. Among them, the physical layer chip or module, the PHY layer is responsible for processing signal encoding, modulation, demodulation and decoding and other tasks directly related to signal transmission.

In some optional embodiments, the device mainboard further includes: a second power module. The second power module is connected to the core board and the WAPI module, and the second power module is used to reduce the voltage provided by the first power module to the device mainboard. The WAPI module adopts an identity authentication mechanism based on digital certificates to solve the security risks caused by password leakage. The WAPI network adopts certificate authentication + national secret SM4 algorithm to prevent illegal terminals from accessing the WAPI network.

In some optional embodiments, the second power module is a DC-DC module as shown in FIG3, wherein the DC-DC module can provide a suitable DC power supply to each module. As shown in FIG5, the supply relationship between the DC-DC module and other modules is shown. The DC-DC module uses multiple MP2307DN-LF-Z chips to convert 12V to 5.0V and 3.3V; and uses RT9013-12GB chips to convert 3.3V to 1.8V and 1.2V. Among them, 5.0V is provided to the RS-485/RS-232 common interface module, the State Grid core encryption interface module, the USB3.0 interface module and the USB Hub module; 3.3V_Module is provided to the LoRa interface module and the ZigBee interface module; 5.0V_5G is provided to the 5G M.2 interface module; 3.3V is provided to the 5G M.2 interface module, the SD card interface module, the USB Hub module, the USB3.0 interface module and the PHY YT8614 module; 1.8V is provided to the core board; 1.2V is provided to the PHY YT8614 module.

In some optional embodiments, the expansion interface includes: a physical transmission interface and a virtual transmission interface; the physical transmission interface is used to expand the USB2.0 brought out by the core board into a four-way USB2.0 interface; the virtual transmission interface (i.e., the network transmission interface) is used to convert the RGMII interface brought out by the core board into a four-way Gigabit Ethernet interface.

In some optional implementations, the USB2.0 brought out from the core board is expanded into a four-way USB2.0 interface through a USB Hub module (expansion interface), which is used to connect the device mainboard to the ZigBee module, LoRa module and USB to four-way serial port module as shown in Figure 3, thereby ensuring the communication speed of these modules.

Further, as shown in FIG6 , the ZigBee module, the LoRa module and the USB to four-way serial port module (i.e., the USB to four-way serial module FT4232 as shown in FIG3 ) are connected to the NXP LS1046A core board in the device mainboard via the USB Hub module.

In some optional implementations, as shown in FIG3 , the access device includes a first communication module for connecting to an external device, and the first communication module includes: a USB interface, a storage device interface (such as an SD card), a GPIO communication interface, a DIDO communication interface, a RS485/232 common communication interface, and an Ethernet interface. Among them, the USB interface includes a USB2.0 interface and a USB3.0 interface.

In some optional implementations, the DIDO communication interface is used for data acquisition and module control, mainly including processing digital input (DI) and digital output (DO) signals. Specifically, as shown in FIG6 , the DIDO communication interface adopts a relay passive dry contact design to realize the digital input and digital output functions of the DIDO interface module through the GPIO input and output interface of the device mainboard.

In some optional embodiments, the second communication module includes: a southbound platform device communication interface and a northbound platform device communication interface. The southbound platform device communication interface includes: a ZigBee communication module, a WAPI communication module and a LoRa communication module; the LoRa communication module and the ZigBee communication module are connected to the device mainboard via a USB2.0 interface; the northbound platform device communication interface includes: a 4/5G gateway communication module and a MESH communication module; the 4/5G communication module is connected to the device mainboard via a USB3.0 interface; the MESH communication module is connected to the device mainboard via an Ethernet interface.

In some optional implementations, in terms of northbound communication, the WAPI intelligent integrated access device accesses the in-station system through a secure access gateway.

In some optional implementations, wireless communication methods such as ZigBee, LoRa, and WAPI are also provided for southbound (interaction interface between energy management system or advanced application layer and underlying devices or subsystems) device access, supporting access of various broadband and narrowband wireless communication protocol devices.

In some optional implementations, the southbound platform device communication interface receives signals from southbound broadband wireless devices and southbound narrowband wireless devices for communication. Among them, southbound broadband wireless devices can be surveillance cameras, inspection robots, handheld terminals, etc., which are connected to the WAPI intelligent integrated access device through wired and wireless communication technologies such as Ethernet, WAPI modules, and ZigBee modules; southbound narrowband wireless devices can be equipment temperature sensors, environmental temperature and humidity sensors, etc., which are connected to the WAPI intelligent integrated access device using the wireless communication technology of the Internet of Things protocol for power transmission and transformation equipment.

In some optional implementations, the first power module provides power support to the device mainboard according to the filtered voltage.

In some optional implementations, the access device further includes: a security encryption chip module; the security encryption chip module is connected to the device mainboard via an SPI interface of the device mainboard.

In some optional implementations, a 4/5G communication module as shown in FIG. 7 is also included. The 4/5G communication module adopts Fibocom's 5G communication module based on Spreadtrum, an M.2 interface, and a USB3.0 interface to ensure the uplink and downlink communication rate requirements of 5G.

In some optional implementations, the ZigBee communication module is shown in FIG8 . The ZigBee module is a short-distance, low-power, low-cost wireless communication module based on the ZigBee wireless communication protocol. The ZigBee communication module is connected to the device mainboard through a USB2.0 interface to ensure the ZigBee communication speed requirement. This module mainly realizes the access function of the ZigBee southbound device.

In some optional implementations, the LoRa communication module is shown in FIG9 , and a LoRa module is used, which is connected to the mainboard via a USB2.0 interface to ensure the LoRa communication speed requirement. This module mainly implements the access function of the LoRa southbound device.

In some optional embodiments, the RS485/RS232 shared interface is as shown in Figure 10. The access device uses a FT4232 as shown in Figure 10 to implement a four-way RS485/RS232 shared interface module, and leads to four RS485/RS232 shared interfaces to the outside, which are used to connect to southbound equipment such as temperature and humidity equipment.

In some optional implementations, the access device also includes an HPLC module as shown in FIG11, and the HPLC module is connected to the HPLC through the SPI interface of the mainboard. The device integrates HPLC and 5G wireless communication technologies. The southbound network collects the grid operation data through HPLC, and completes the grid operation status perception function through the corresponding app in the device Docker. The northbound network slice management technology is used to realize the security control of the device by the management platform. It should be noted that the HPLC module is a broadband carrier module, which is used for data transmission, data reading, channel management, power outage event reporting, system management of products such as electric meters, collectors, concentrators, and gateways on the power line medium, and the optimized network scheduling mechanism is based on the whole network beacon synchronization mechanism, combined with the CSMA/TDMA algorithm, to achieve orderly management of the carrier channel, effectively avoid mutual crosstalk between stations, ensure reliable and real-time reporting of events, and apply adaptive proxy node control, selection, balancing and other network layer optimization algorithms. It has the ability of automatic optimization of network paths and automatic real-time repair, ensuring the timeliness and robustness of networking.

In some optional implementations, the access device as shown in FIG3 further includes a State Grid core security encryption chip module as shown in FIG12. Specifically, the access device uses the State Grid core security encryption chip and is connected to the mainboard through the SPI interface of the mainboard. SM2, SM3 and SM4 encryption algorithms are supported. The security requirements of power communication are effectively guaranteed.

In some optional implementations, the access device shown in FIG3 is installed with a stable version of Linux Ubuntu operating system shown in FIG13, and the Linux kernel driver is modified according to the specific hardware module to enable driving of all hardware modules. Using Docker container technology, apps corresponding to modules of different protocols are run in containers without interfering with each other. The modular design of software and hardware can also meet the actual needs of configuring different modules for devices in different scenarios.

The WAPI-based access device provided in the present application includes: a device mainboard, a first communication module, a second communication module and a first power module; the device mainboard is connected to the interface module and the communication module to receive information transmitted by the interface module and the communication module; the first communication module is connected to the device mainboard to receive information through a physical interface and to interact with the device mainboard; the second communication module is connected to the device mainboard to receive information through a virtual port and to interact with the device mainboard; the first power module provides power support for the device mainboard. The present application sets up multiple protocols and multiple interfaces to achieve the use of the same set of intelligent integrated access devices in different power application scenarios, unify the access technology of southbound devices, increase the application scope of WAPI intelligent integrated access devices, and broaden the market scope. At the same time, for users, it reduces the cost of repeated investment in multiple access devices and reduces the time and labor costs of equipment operation and management.

Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

In addition, to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand, the known power supply/ground connection with the integrated circuit (IC) chip and other components may or may not be shown in the provided drawings. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform to be implemented in the embodiments of the present application (that is, these details should be fully within the scope of understanding of those skilled in the art). In the case of elaborating specific details (e.g., circuits) to describe exemplary embodiments of the present application, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

Although the present application has been described in conjunction with specific embodiments of the present application, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims (10)

1. A WAPI-based access device, comprising: the device comprises a device main board, a first communication module, a second communication module, an interface module and a first power module;

The equipment main board is connected with the interface module and the first communication module and receives information transmitted by the interface module and the first communication module;

the first communication module is connected with the equipment main board, receives information through a physical interface and performs information interaction with the equipment main board;

The second communication module is connected with the equipment main board, receives information through a virtual port and performs information interaction with the equipment main board;

The first power module provides power support for the device motherboard.

2. The access device of claim 1, wherein the device motherboard comprises: the device comprises a core board, an expansion interface and a WAPI module, wherein the expansion interface and the WAPI module are connected with the core board;

The expansion interface is used for expanding the interface of the core board;

The WAPI module is used for providing WAPI network communication; wherein, the WAPI module is an embedded WAPI module.

3. The access device of claim 2, wherein the device motherboard further comprises: a second power module;

the second power module is connected with the core board and the WAPI module, and is used for reducing the voltage provided by the first power module to the equipment main board.

4. The access device of claim 2, wherein the expansion interface comprises: a physical transmission interface and a virtual transmission interface;

The physical transmission interface is used for expanding the USB2.0 led out by the core board into a four-way USB2.0 interface;

the virtual transmission interface is used for converting the RGMII interface led out by the core board into a four-way gigabit Ethernet interface.

5. The access device of claim 1, wherein the first communication module comprises: USB interface, storage device interface, and Ethernet interface.

6. The access device of claim 1, wherein the second communication module comprises: a southbound platform device communication interface and a northbound platform device communication interface.

7. The access device of claim 6, wherein the southbound platform device communication interface comprises: the ZigBee communication module and the LoRa communication module;

The LoRa communication module and the ZigBee communication module are connected with the equipment mainboard through a USB2.0 interface.

8. The access device of claim 6, wherein the northbound platform device communication interface comprises: a 4/5G communication module and a MESH communication module;

The 4/5G communication module is connected with the equipment main board through a USB3.0 interface;

and the MESH communication module is connected with the equipment mainboard through an Ethernet interface.

9. The access device of claim 1, wherein the first power module provides power support for the device motherboard based on the filtered voltage.

10. The access device of claim 1, wherein the access device further comprises: a secure encryption chip module;

The security encryption chip module is connected with the equipment mainboard through an SPI interface of the equipment mainboard.