Mesh networking-based power emergency repair space integrated communication device

Abstract

The utility model belongs to but is not limited to communication technical field discloses a kind of power emergency repair space integration communication device based on MESH networking, including communication box, high gain directional antenna and monocrystalline silicon solar panel are installed in communication box top, and universal wheel with brake function is equipped in each bottom four corners;Emergency communication coverage center, access equipment, solar power supply device, energy storage battery, relay base station, control equipment, transmission device and mobile communication acquisition end are arranged according to function partition inside communication box;Emergency communication coverage center is connected antenna by gigabit ethernet, is connected control equipment by RS485 interface;Solar power supply device includes MPPT controller and charge-discharge management unit, input end connects solar panel, output end connects energy storage battery, and each equipment is provided with direct-current power supply;Control equipment uses Siemens S7-1200 PLC, is communicated with each equipment by industrial ethernet, realizes centralized control and data interaction.

Description

Technical Field

[0001] This utility model belongs to, but is not limited to, the field of communication technology, and particularly relates to an integrated communication device for emergency power repair based on MESH networking. Background Technology

[0002] Emergency command and communication systems are an important component and fundamental guarantee of the emergency management system for sudden incidents, and emergency command and communication vehicles have the advantages of being mobile, flexible, and quick to deploy.

[0003] Wireless LANs (WLANs) are a product of the combination of computer networking and wireless communication technologies. Utilizing radio frequency identification (RFID) technology, they replace traditional twisted-pair cables to form local area networks, providing all the functions of traditional wired LANs. The necessary network infrastructure no longer needs to be buried underground or hidden in walls, and can be moved or changed as needed. Using wireless channels to access the network, they offer potential means for mobile, personalized, and multimedia applications of communication, and have become one of the effective means of broadband access.

[0004] However, existing power emergency command systems suffer from problems such as untimely communication, poor stability, and poor security.

[0005] Based on the above analysis, the urgent technical problems that need to be solved in the existing technology are: the existing power emergency command system suffers from untimely communication, poor stability, and poor security. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model is implemented as follows: a MESH-based integrated communication device for power emergency repair space, comprising a communication enclosure, a high-gain directional antenna and a monocrystalline silicon solar panel mounted on the top of the enclosure, and universal wheels with braking function at each of the four corners of the bottom; the interior of the communication enclosure is functionally divided into an emergency communication coverage center, access equipment, a solar power supply device, an energy storage battery, a relay base station, control equipment, a transmission device, and a mobile communication acquisition terminal.

[0007] The emergency communication coverage center connects to the antenna via gigabit Ethernet and to the control equipment via an RS485 interface;

[0008] The solar power supply device includes an MPPT controller and a charge / discharge management unit. The input end is connected to the solar panel, the output end is connected to the energy storage battery, and it provides DC power to each device.

[0009] Relay base stations connect to access devices via PoE switches, connect to control devices via Ethernet, and achieve MESH networking and wide area backhaul through transmission devices;

[0010] The control equipment uses a Siemens S7-1200 PLC, which communicates with each device via industrial Ethernet to achieve centralized control and data interaction;

[0011] The transmission device supports MESH self-organizing network and satellite / microwave link switching to ensure communication continuity;

[0012] The cable connections between the various devices comply with GB 50217 "Design Standard for Cables in Power Engineering" and relevant DL / T communication standards, and lightning protection, anti-static and electromagnetic shielding measures are taken.

[0013] Furthermore, the solar power supply unit outputs 24V DC and is equipped with a redundant power distribution module.

[0014] Furthermore, the energy storage battery uses a lithium iron phosphate battery pack with a capacity of 500Ah and is equipped with a battery management system.

[0015] Furthermore, the relay base station supports TD-LTE and 5G NR dual-mode and can automatically switch to satellite link or microwave link through the transmission device.

[0016] Furthermore, the Siemens S7-1200 control device establishes communication with access devices, transmission devices, and relay base stations via PROFINET.

[0017] Furthermore, the communication enclosure features a partitioned heat dissipation design, with the power supply area isolated from the data area, and the radio frequency module in an independent shielded compartment.

[0018] Based on the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solution to be protected by this utility model are as follows:

[0019] This utility model provides a MESH-based mobile emergency communication device that relies on multiple wireless access technologies. It offers higher bandwidth wireless access capabilities between individual soldiers and command communication vehicles, between individual soldiers and relay mobile base stations, and between individual soldiers and high-altitude drones, meeting the requirements of broadband integrated command and dispatch services including voice, data, and video. The system uses a standard IP interface, allowing for easy integration with various command and communication equipment. It can form a more comprehensive mobile command center, providing commanders and on-site soldiers with rich command and dispatch functions such as audio-visual monitoring, voice communication, and data query. This enables decision-makers in the command center to feel as if they are on-site, obtaining timely information and improving the accuracy and timeliness of decision-making. It also provides reliable communication support for the linkage between the incident site and remote command centers.

[0020] This platform can maximize utilization, achieve multi-base station coverage and multi-terminal networking; it is suitable for emergency situations, quickly setting up communication devices, and realizing synchronous transmission of broadband multimedia services such as video, audio, and data transmission in mobile environments. Attached Figure Description

[0021] Figure 1 This is a perspective view of the MESH-based power emergency repair spatial integrated communication device provided in this embodiment of the utility model;

[0022] Figure 2 This is a front view of the MESH-based power emergency repair spatial integrated communication device provided in this embodiment of the utility model;

[0023] Figure 3 This is a rear view of the MESH-based power emergency repair spatial integrated communication device provided in this embodiment of the utility model;

[0024] Figure 4 This is a bottom schematic diagram of the MESH-based power emergency repair spatial integrated communication device provided in this embodiment of the utility model;

[0025] In the diagram: 1. Communication enclosure; 2. Antenna; 3. Solar panel; 4. Emergency communication coverage center; 5. Access equipment; 6. Solar power supply device; 7. Energy storage battery; 8. Casters; 9. Control equipment. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0027] like Figure 1 As shown, this utility model is implemented as follows: a MESH-based integrated communication device for power emergency repair space includes a communication box 1. A high-gain directional antenna 2 and a monocrystalline silicon solar panel are installed on the top of the communication box 1, and each of the four corners of the bottom is equipped with a universal wheel 8 with a braking function. The interior of the communication box 1 is arranged in functional zones as follows: an emergency communication coverage center 4, access equipment 5, solar power supply device 6, energy storage battery 7, relay base station, control equipment 9, transmission device and mobile communication acquisition terminal.

[0028] The emergency communication coverage center 4 is connected to antenna 2 via gigabit Ethernet and to control equipment 9 via RS485 interface;

[0029] The solar power supply device 6 includes an MPPT controller and a charge / discharge management unit. The input end is connected to the solar panel 3, the output end is connected to the energy storage battery 7, and it provides DC power to each device.

[0030] The relay base station connects to access device 5 via a PoE switch, connects to control device 9 via Ethernet, and realizes MESH networking and wide area backhaul through the transmission device;

[0031] Control device 9 uses a Siemens S7-1200 PLC, which communicates with each device via industrial Ethernet to achieve centralized control and data interaction;

[0032] The transmission device supports MESH self-organizing network and satellite / microwave link switching to ensure communication continuity;

[0033] The cable connections between the various devices comply with GB 50217 "Design Standard for Cables in Power Engineering" and relevant DL / T communication standards, and lightning protection, anti-static and electromagnetic shielding measures are taken.

[0034] Emergency communication coverage center 4 is designed with IP65 protection level, supports IEEE 802.11s MESH protocol, and can simultaneously connect no less than 20 terminal nodes.

[0035] like Figure 2 As shown, the solar power supply device 6 outputs a voltage of 24V DC and is equipped with a redundant power distribution module to ensure that the system operation is not affected in the event of a single circuit failure.

[0036] The energy storage battery 7 uses a lithium iron phosphate battery pack with a capacity of no less than 500Ah and is equipped with a battery management system (BMS) to achieve overcharge, over-discharge, overcurrent and short circuit protection.

[0037] like Figure 3 As shown, the relay base station supports TD-LTE and 5G NR dual-mode and can automatically switch to satellite link or microwave link through the transmission device to ensure communication continuity when the terrestrial network is interrupted.

[0038] like Figure 4 As shown, the control device 9, Siemens S7-1200, establishes communication with the access device 5, the transmission device, and the relay base station via PROFINET, and uses time-slicing and token ring mechanisms to avoid data conflicts.

[0039] The communication enclosure 11 adopts a partitioned heat dissipation design, with the power supply area isolated from the data area and the radio frequency module having an independent shielded compartment, meeting the GB / T 4208 IP55 protection level and GB / T 2423 environmental test standards.

[0040] The transmission device supports dynamic bandwidth aggregation, which can superimpose the bandwidth of MESH links and satellite links to improve data transmission rate and reliability.

[0041] I. Enclosure Structure and Protection Design

[0042] This utility model uses the HNX-001 weather-resistant outdoor communication box as its core carrier. The box design fully complies with the IP65 protection requirements in GB / T4208-2017 Degrees of Protection Provided by Enclosures (IP Code) and DL / T 1573-2016 Installation Design Code for Power Communication Equipment. The specific structural parameters are as follows:

[0043] Enclosure Material and Strength: The main body of the enclosure is made of 304 stainless steel plate with a thickness of 1.5mm. The enclosure dimensions are 1200mm×800mm×600mm (length×width×height). The corners are rounded, and the surface is treated with sandblasting and electrostatic powder coating (plastic layer thickness 60μm). It has a salt spray resistance rating of ≥500h and is suitable for extreme outdoor environments from -40℃ to 70℃.

[0044] IP65 protection details:

[0045] An EPDM sealing strip with a cross-sectional size of 8mm×12mm is embedded at the contact point between the door frame and the cabinet body. The compression of the sealing strip is controlled at 30%~40% to ensure waterproof and dustproof protection.

[0046] The top of the container is equipped with a 15° sloping waterproof eave (100mm wide) to prevent rainwater accumulation;

[0047] Two IP65-rated waterproof and breathable valves (model: IP65-AB-01) are pre-installed on the side of the enclosure to achieve air circulation and pressure balance inside the enclosure and prevent condensation.

[0048] All external interfaces (such as antenna 2, solar panel 3, and external power supply) use IP67 waterproof aviation plugs (model: WEIPU WF16-2P), and the plug connections are wrapped with waterproof tape and fitted with waterproof covers.

[0049] Auxiliary structure: The four corner swivel casters (model: TPR-50) at the bottom of the box are silent casters with brake locking function, with a wheel diameter of 50mm and a load capacity of ≥50kg; two folding handles (material: 304 stainless steel) are symmetrically arranged on both sides of the box for easy handling and fixing.

[0050] II. Hardware Layout Scheme Inside the Box

[0051] To avoid equipment interference, optimize heat dissipation efficiency, and facilitate maintenance, the HNX-001 enclosure adopts a modular layout with functional zones. Each zone is separated by 1.5mm thick 304 stainless steel partitions. The zone layout and fixing method are shown in the table below:

[0052] Power supply area (bottom left) Solar power supply device 6, energy storage battery 7 Lower left area of ​​the container (independent compartment) The energy storage battery 7 is fixed by an L-shaped stainless steel bracket (bolt type: M8×20), and the solar power supply device 6 is installed by a guide rail (guide rail type: TS35). The compartment has louvers (with dust filters) on the side and a built-in 12V / 0.5A cooling fan (model: ADDAAD0612HB-A73GL). Communication Core Area (Upper Middle) Emergency communication coverage center 4, control equipment 9 Upper section of the container (main compartment) All equipment is mounted using 19-inch standard rack rails (450mm deep), with a spacing of ≥50mm between adjacent devices. Two 12V / 1A axial fans (model: Nidec U60T24MS1A5-51) are installed on the ceiling of the main compartment, forming an "upward airflow, downward airflow" duct. Relay transmission area (bottom right) Relay base station, transmission device, access equipment 5 Lower right area of ​​the container (independent compartment) The relay base station and transmission device are stacked and fixed (with a 5mm thick silicone pad at the bottom for shock absorption), and the access device 5 is fixed by a wall-mounted bracket. A 5mm thick aluminum heat sink (0.5㎡ area) is installed on the rear panel of the cabin to facilitate natural heat dissipation. Data acquisition terminal area (top right) Mobile communication data acquisition terminal (including 2 backup terminals) Upper right area of ​​the container (drawer-type compartment) The terminal is placed in a drawer with foam slots. The drawer uses a slide-out design with a 300mm pull-out travel. Ventilation holes (3mm diameter, 10mm spacing) are provided on the sides of the drawer for natural heat dissipation.

[0053] Cabling specifications: All cables inside the box are laid out in layers. High-voltage (220V / 12V power supply lines) and low-voltage (signal cables, control lines) cables are routed through different PVC cable trays (high-voltage tray: 20mm wide × 15mm high; low-voltage tray: 15mm wide × 10mm high). The cable trays are fixed to the side wall of the box. Identification tags (indicating the device name, interface type, and cable length) are affixed to both ends of the cables. RF cables (such as the connection between antenna 2 and the communication coverage center) adopt a shielded grounding design with a grounding resistance ≤4Ω.

[0054] III. Detailed Design of Electrical Connection System

[0055] This utility model clearly defines the interface types, cable specifications, and protection mechanisms between various devices, forming a complete electrical connection closed loop, as detailed below:

[0056] 3.1 Power supply circuit connection (core logic: solar power priority, energy storage backup, overload protection)

[0057] Solar power supply link:

[0058] The output end of the solar panel (model: Jinko JKM390M-72HL4) is connected to the solar power supply device 6 (model: MPPT-100 / 20, maximum output current 20A) via an MC4 waterproof connector. The cable specification is PV1-F 4mm² (weather-resistant photovoltaic cable), and the length is set according to the installation height of the box (default 3m).

[0059] The DC output (12V) of the solar power unit 6 is connected to the energy storage battery 7 (model: LFP-12V100Ah, lithium iron phosphate battery) through an XT60 waterproof connector. The cable specification is RVV 2×2.5mm², and a 15A self-resetting fuse (model: Littelfuse 0451015.MRL) is connected in series.

[0060] The output of the energy storage battery 7 is divided into 4 power supply circuits, each connected in series with an independent circuit breaker (model: Schneider C65N-DC 10A / 16A):

[0061] 1 circuit (10A circuit breaker): Powers emergency communication coverage center 4 (12V / 5A), cable RVV 2×1.5mm²;

[0062] 1 circuit (16A circuit breaker): Powers the relay base station (12V / 8A) + transmission device (12V / 3A), cable RVV 2×2.5mm²;

[0063] 1st Circuit (10A Circuit Breaker): Powers control device 9 (220V / 0.5A, requires a 12V to 220V inverter, model: Sungoldpower 300W), cable RVV 2×1.5mm²;

[0064] 1 circuit (5A circuit breaker): Powers auxiliary equipment such as cooling fans and lighting; cable RVV 2×1.0mm. 2 .

[0065] 3.2 Signal and control loop connection

[0066] Emergency Communication Coverage Center 4 → Antenna 2 SMA-J (RF Output) SMA-K (Antenna Input) Shielded RF cable (Model: RG-58, impedance 50Ω) One end of the cable shield is connected to the grounding copper busbar of the enclosure, with a grounding resistance ≤4Ω. Emergency Communication Coverage Center 4 → Control Equipment 9 Profinet (RJ45) Profinet (RJ45) CAT6 shielded network cable (UTP, 1m length) The shielding layer of the network cable is grounded at both ends, and shielding tape is wrapped around the connector. Relay base station → Access device 5 Gigabit Ethernet (RJ45) Gigabit Ethernet (RJ45) CAT6 unshielded network cable (1.5m length) Cables are protected by metal corrugated tubing (10mm diameter). Relay base station → Transmission device RS485 (Phoenix Terminal) RS485 (Phoenix Terminal) RVSP 2×0.75mm² (Twisted Pair Shielded Cable) The shielding layer is grounded at one end, and a surge protector (model: OBO BNC-KE) is installed at the terminal. Control device 9 → Energy storage battery 7 (BMS) RS485 (DB9 interface) RS485 (terminal) RVSP 2×0.5mm² (Twisted Pair Shielded Cable) TVS diodes (model: SMBJ15CA) are installed at both ends of the cable to protect against overvoltage.

[0067] IV. Connection Logic and Coordination Mechanism of Control Device 9 (Siemens S7-1200)

[0068] This invention uses the Siemens S7-1200 CPU 1214C DC / DC / DC (model: 6ES7214-1AG40-0XB0) as the control core, and achieves multi-device collaboration through "hardware interface definition + software protocol optimization" to avoid data conflicts.

[0069] 4.1 Hardware Interface Connection Definition

[0070] The interface allocation for S7-1200 control device 9 is as follows:

[0071] Digital Input (DI) I0.0~I0.3 Emergency Communication Coverage Center 4 Status Feedback I0.0 = Normal operation, I0.1 = Fault alarm 24V DC (PNP type) Digital Input (DI) I0.4~I0.7 Relay base station status feedback I0.4 = Signal normal, I0.5 = Disconnection alarm 24V DC (PNP type) Digital Input (DI) I1.0~I1.1 Energy Storage Battery 7 Status Feedback I1.0 = Battery level ≥ 20%, I1.1 = Battery level ≤ 10% (Low battery alarm) 24V DC (PNP type) Digital Output (DO) Q0.0~Q0.1 Cooling fan control Q0.0 = Main cabin fan start / stop, Q0.1 = Power supply area fan start / stop 24V DC (Relay Output) Digital Output (DO) Q0.2~Q0.3 Equipment emergency power failure control Q0.2 = Relay base station power outage, Q0.3 = Communication coverage center power outage 24V DC (Relay Output) Analog Input (AI) AI0 (0~10V) Solar panel output voltage acquisition The voltage range for data acquisition is 0~60V (converted via a voltage divider resistor). Analog voltage signal Analog Input (AI) AI1 (4~20mA) Energy storage battery SOC value collection 4mA = 0% SOC, 20mA = 100% SOC Analog current signal Communication interface (Profinet) X1 Emergency Communication Coverage Center 4 Real-time transmission of communication data (rate 100Mbps) Ethernet signal Communication interface (RS485) CM01 (Extension Module) Solar power supply device 6, energy storage battery 7, BMS Collect power supply parameters (such as charging current and battery voltage). Modbus-RTU protocol Communication interface (Ethernet) X2 Transmission device Upload data to the command center (rate 100Mbps). TCP / IP protocol

[0072] 4.2 Software Collaboration and Data Conflict Avoidance Mechanisms

[0073] Layered design of communication protocols:

[0074] At the lower level (device level): the Modbus-RTU protocol (baud rate 9600bps, even parity, 1 stop bit) is adopted. The S7-1200 is used as the master station, and each slave device is polled according to priority (priority: emergency communication coverage center 4 > relay base station > solar power supply device 6 > energy storage battery 7). The polling period is 500ms. Each device is assigned a unique slave address (1~4) to avoid simultaneous communication.

[0075] Middle layer (data processing level): S7-1200 has a built-in data buffer (capacity 1024 bytes). Feedback data of each device is stored in an independent address range (e.g., communication coverage center data: 0x0000~0x00FF, relay base station data: 0x0100~0x01FF). The buffer is equipped with a "write lock" mechanism, which allows only one device to write data at the same time.

[0076] Upper layer (transmission level): Using TCP / IP protocol + data fragmentation transmission, when the S7-1200 sends data to the command center through the transmission device, it splits large data (such as video streams) into IP data packets of 1500 bytes / frame. Each frame carries a frame sequence number and checksum. After receiving the data, the command center reassembles it according to the sequence number to avoid data loss or corruption.

[0077] Fault collaborative handling logic:

[0078] When the S7-1200 detects a device disconnection (e.g., no feedback signal from the DI interface for 3 seconds), it immediately triggers "tiered protection": first, it cuts off the power supply to the device through the DO interface (to avoid short circuits affecting other devices), and then sends an alarm message (including the device name and disconnection time) to the command center through the transmission device.

[0079] When the energy storage battery 7 has a charge level of ≤10% (triggered by I1.1), the S7-1200 automatically shuts down non-core devices (such as the backup mobile communication acquisition terminal), retaining only the core functions of the emergency communication coverage center 4 and the relay base station, while increasing the charging power of the solar power supply device 6 (by sending instructions via RS485) to extend the battery life. Specific Implementation

[0080] Taking the scenario of "emergency repair of power transmission lines in mountainous areas" as an example, the implementation process of this platform is as follows:

[0081] On-site deployment: Move the HNX-001 enclosure to the highest point of the emergency repair site (such as next to a tower on a mountaintop), lock the casters 8, adjust the angle of the solar panel to 30° (to optimize light collection efficiency), and connect the antenna 2 (erect at a height of 3m to ensure no obstruction).

[0082] Power supply startup: The solar panel charges the energy storage battery 7 through the solar power supply device 6. Within 30 minutes, the energy storage battery 7 reaches 50% charge. The S7-1200 automatically starts all devices and initializes the emergency communication coverage center 4 through the Profinet protocol to establish a MESH network (coverage radius of 5km).

[0083] Data transmission: Repair personnel carry mobile communication acquisition devices (individual soldier equipment, supporting 4G / MESH dual-mode) to collect on-site video (1080P / 30fps) and voice signals, and transmit them to the relay base station via the MESH network; the relay base station forwards the data to the transmission device, which then uploads the data to the command center via "MESH→4G" dual-mode switching (if there is no 4G signal on-site, it is cascaded to the wired network of a substation 5km away via the relay base station);

[0084] Remote control: The command center sends instructions (such as adjusting the transmission power of the relay base station) to the S7-1200 via the TCP / IP protocol. After receiving the instructions, the S7-1200 executes them through the RS485 interface and feeds back the execution results, realizing a closed-loop control of "remote monitoring - instruction issuance - status feedback".

[0085] In this embodiment, the platform ran continuously for 72 hours, during which it experienced light rain (verifying IP65 protection). The signal interruption rate of the emergency communication coverage center 4 was ≤0.1%, and the video transmission delay was ≤200ms, which fully met the communication needs of power emergency repair.

[0086] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0087] Therefore, any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in this utility model, and within the spirit and principles of this utility model, should be included within the protection scope of this utility model.

Claims

1. A space-integrated communication device for emergency power repair based on MESH networking, characterized in that, The system includes a communication enclosure, with a high-gain directional antenna and a monocrystalline silicon solar panel mounted on the top, and four casters with brakes at the bottom corners. Inside the communication enclosure, an emergency communication coverage center, access equipment, solar power supply devices, energy storage batteries, relay base stations, control equipment, transmission devices, and mobile communication acquisition terminals are arranged in functional zones. The emergency communication coverage center connects to the antenna via gigabit Ethernet and to the control equipment via an RS485 interface; The solar power supply device includes an MPPT controller and a charge / discharge management unit. The input end is connected to the solar panel, the output end is connected to the energy storage battery, and it provides DC power to each device. Relay base stations connect to access devices via PoE switches, connect to control devices via Ethernet, and achieve MESH networking and wide area backhaul through transmission devices; The control equipment uses a Siemens S7-1200 PLC, which communicates with each device via industrial Ethernet to achieve centralized control and data interaction; The transmission device supports MESH self-organizing network and satellite / microwave link switching to ensure communication continuity.

2. The MESH-based integrated communication device for power emergency repair space according to claim 1, characterized in that, The solar power supply unit outputs 24V DC and is equipped with a redundant power distribution module.

3. The MESH-based power emergency repair spatial integrated communication device according to claim 1, characterized in that, The energy storage battery uses a lithium iron phosphate battery pack with a capacity of 500Ah and is equipped with a battery management system.

4. The MESH-based integrated communication device for power emergency repair as described in claim 1, characterized in that, The relay base station supports TD-LTE and 5G NR dual-mode and can automatically switch to satellite link or microwave link through the transmission device.

5. The MESH-based integrated communication device for power emergency repair space according to claim 1, characterized in that, The Siemens S7-1200 control device establishes communication with access devices, transmission devices and relay base stations via PROFINET.

6. The MESH-based integrated communication device for power emergency repair space according to claim 1, characterized in that, The communication enclosure features a partitioned heat dissipation design, with the power supply area isolated from the data area, and the radio frequency module in an independent shielded compartment.

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