Intelligent Fireproof and Explosion-Resistant Wall System Based on Lianggu Wall

I. Lianggu Wall Structure and Characteristics (Interior Wall)

1. Background of Lianggu Wall

The Lianggu Wall is a patented hollow interior formwork metal mesh wall system for both interior and exterior applications. Lianggu Construction Engineering Co., Ltd. is a qualified construction company for Lianggu Wall projects and possesses a series of relevant technical specifications and drawing collections. It offers complete design basis, construction methods, and acceptance standards.

2. Structure and Characteristics of Lianggu Interior Wall

3. Advantages of Lianggu Wall

• High Safety, Superior Anti-Damage Performance: Built-in steel mesh structure ensures wall sturdiness without cracking, blocks pull-out force, offers excellent seismic performance, and prevents detachment.
• Excellent Fire Resistance: Both interior and exterior walls exceed 2.5 hours in fire resistance tests. The interior insulation material for exterior walls achieves Class A fire rating.
• Convenient Construction: Facilitates pre-embedding of water/electricity lines, pipes, and panel sockets. No chiseling required; unique groove design allows for direct pre-embedding.

II. Introduction to LZBus Bus Technology

➤ Characteristics of the LZBUS Bus System

LZBUS is a long-distance, single-wire transmission bus supporting one master and multiple slaves.

➤ External Wiring of LZBUS Bus: Power Line VBUS, Signal Line S, Ground Line GND

When the system bus load current is relatively small (<2A), nodes can draw power from the bus, meaning communication requires only two wires (GND, S). Furthermore, nodes can achieve non-polarity communication via a bridge rectifier, allowing S and GND to be connected without regard to polarity.

If the system load current is larger, a three-wire system can be used. The entire system's load current can exceed 10A, eliminating the need for individual node power supply and facilitating engineering wiring.

III. Data Transmission Networking Solution Based on Wired Bus LZBUS + Wireless (LoRa)

1. Solution Diagram

2. Implementation Principle of the Wired+Wireless Hybrid Networking Sensor System Solution Compatible with Lianggu Wall

The hybrid networking sensor system consists of GPRS, LZBUS bus (including master and slave stations), wireless nodes, LZBUS temperature sensors, LZBUS digital input modules, etc.
LZBUS communicates with GPRS via serial port. The master station communicates with each slave station via two wires. Slave stations are connected to high-temperature resistant temperature sensors, wireless data transmission modules, and digital input modules. The wireless modules communicate with surrounding wireless sensors (paired with standalone smoke detectors, etc.). Each slave station can communicate with its managed wireless modules, digital input modules, and temperature sensors via address identification.
The LZBUS lines are embedded within the rock wool (or other fireproof material) filling the hollow section of the Lianggu Wall. The temperature sensors, wireless communication modules, and digital input modules, designed for fire resistance, connect to the LZBUS bus via customized interfaces.

IV. Characteristics and Advantages of the Fireproof & Explosion-Proof Smart Wall Integrating Lianggu Wall, LZBus, and Wireless Networking Technologies

1. Explosion-Proof: The smart wall system possesses superior explosion-proof performance due to the inherent anti-explosion and crack-resistant function of the interior formwork itself and the addition of thermal insulation and explosion-proof materials to the mortar layer.
2. Lightweight Wall: Significantly reduces the load-bearing requirements of the entire explosion-proof building, offering structural advantages over traditional methods (reinforced concrete 400mm-800mm). Effectively reduces civil engineering costs.
3. Flexible Carrier Structure: Capable of handling pipeline and cable penetration, addressing requirements that traditional concrete walls cannot meet for pipeline penetration and openings. The steel mesh skeleton allows flexible layout, facilitating reserved openings for pipeline penetration and enabling seamless integration with wired and wireless sensor systems. LZBUS requires only two wires, simultaneously meeting power supply and communication needs. Embedded within the fire-resistant Lianggu Wall body, it can meet on-site fire emergency requirements.
4. Primary Role in Fire Protection Applications: Fire isolation and on-site parameter sensing, aiming to protect fire control equipment and communication systems from being burned or extending their time to failure. This provides assurance for the stable operation of fire control room equipment at the fire scene. Simultaneously, it enables data transmission externally, making it possible for internal fire control personnel to evacuate and transfer control to external接管 control.
5. By appropriately arranging sensing walls or columns indoors and combining them with floor CAD drawings, the actual fire-affected area can be calculated, which is highly practical.
6. Various cables in fireproof cable trays can still be burned quickly. If placed in trays pre-embedded within the wall body, the burn-through time can be significantly extended, especially for optical fibers and network cables.
7. The wall itself will not collapse, preventing secondary injuries.
8. Unique wall structure and formula, protected by over ten patents and independent intellectual property rights, making it difficult to counterfeit.

V. Main Functional Implementation Content

1. Construct a smart fire protection wall system, featuring a local human-machine interface for local content display, alarm, and data communication functions.
2. Establish a Fire Protection IoT Cloud Platform. By organically integrating hardware and software fire protection facilities and applying data acquisition, data cleaning, IoT, and big data technologies, build a fire protection IoT cloud platform. Applying big data technology to this platform enhances the informatization and automation level of fire protection maintenance, reduces costs and errors associated with traditional maintenance, and improves the efficiency of industry supervision for fire protection maintenance.
3. In Version 1.0, focus on implementing three main functions: ambient temperature acquisition, wireless networked standalone smoke detectors, and hazardous gas alarms (digital input). The wireless interface can accommodate subsequently expanded environmental parameter sensor data.

VI. Innovation Points

1. Technological Innovation: Creating Smart Fireproof & Explosion-Proof Walls

Lianggu Construction Engineering Co., Ltd. is a qualified construction company for Lianggu Wall projects and possesses a series of relevant technical specifications and drawing collections. It independently develops dedicated sensors for配套, making it suitable for use in offshore oil platforms, power plants, petrochemical equipment, chemical plants, military enterprises, civil defense facilities, and hazardous production industrial areas. The materials and structure used in the wall are explosion-proof and equipped with local sensing functions.

Addresses the issue of cable and equipment burn-through for fire alarm information transmission devices at fire scenes.

2. Smart Fire Protection Wall

Utilizes advanced IoT technology to create a leading smart fireproof & explosion-proof wall in the fire protection IoT industry, with independently developed dedicated sensors for配套 (Phase 1: Customized Temperature Sensors) for real-time monitoring of on-site ambient temperature data.
The smart fireproof & explosion-proof wall primarily features high strength, high safety, and excellent fire resistance.

VII. About Hainan Shidian

Hainan Shidian Technology Co., Ltd. envisions "making standardized industrial IoT simpler." Focusing on the IoT industry chain direction, it continuously conducts R&D in indoor positioning, sensing control, and data transmission products. It adopts Lego-like production to precisely meet the small-volume, high-variety demand characteristics of industrial IoT products, providing solutions for complex environments and personalized customer needs, truly realizing a new supply-demand relationship with low inventory and high satisfaction.

The company has R&D centers in Shanghai, Suzhou, Chengdu, and Taipei. Upholding the group's nearly 40 years of excellent business resources and reputation, it firmly believes in the business philosophy of "being industry experts." It excels in channels, is敏锐 to the market, focuses on products, ensuring R&D reliability, production stability, and sales quality,始终 dedicated to极致 meeting the personalized scenario needs of industrial IoT customers.

Regarding products, we have Zigbee positioning products developed by our in-house team over more than 10 years, as well as UWB positioning products developed by teams in Shanghai and Taipei, meeting different customer requirements for positioning accuracy. Simultaneously, the company introduces Bluetooth positioning products to supplement in-house solutions, comprehensively满足 various customer needs.

In software support, we integrate overall solutions from various industries, actively开放 interfaces and source code for system integrators to join. This facilitates相关 system software companies in creating case demonstrations based on our products, broadening the application of IoT indoor positioning.