Intelligent fire protection blast wall system based on Liangguo wall

I. Structure and characteristics of good solid walls (interior walls)

1. Background of the Goodwall

Lianggu wall is a kind of hollow internal molded metal mesh internal and external wall with patented technology. Lianggu Construction Engineering Co., Ltd. is a construction engineering company with the qualification of Lianggu wall construction and a series of related technical regulations and atlases. The design basis, construction method and acceptance standard are complete.

2. Structure and characteristics of the Lianggu inner wall

3. Advantages of Goodwall

•  High safety, super anti-vandalism: Built-in steel mesh structure, the wall is strong and non-cracking, blocking the pulling force, excellent anti-seismic performance, avoiding falling off.
• Good fireproof performance: the fire resistance test of both the inner and outer walls exceeds 2.5 hours, and the fireproofing of the inner heat preservation material of the outer wall reaches A level.
•  Convenient construction: easy to pre-bury utilities, pipes, panels and sockets. No need to open the groove, unique groove design, pre-buried can be.

II. Introduction of LZbus technology

➤ Characteristics of the LZBUS bus system

The LZBUS bus is a long-distance master-multi-slave single-wire transmission bus.

➤ The external wiring of the LZBUS bus consists of the power line VBUS, the signal line S, and the ground line GND.

In the case of low system bus load currents (<2A), the nodes can take power on the bus, i.e., only two wires (GND, S) are needed to communicate, and the nodes can also pass through a bridge stack to make polarity-independent communication, i.e., S, GND can be polarity-independent.

If the system load current is large, you can use the three-wire system, the load current of the entire system can be done more than 10A, so that each node does not have to supply power individually, and it is convenient for engineering wiring.

Third, based on the wired bus LZBUS + wireless (LoRa) digital transmission networking scheme

1. Programmatic map

2. Principle of realization of wired+wireless hybrid network sensor system solution with Liangguo wall

Hybrid networking sensor system, consisting of GPRS, LZBUS bus (including master and slave), wireless nodes, LZBUS temperature sensors, LZBUS switching acquisition module and so on ;
LZBUS communicates with GPRS through the serial port, the master station communicates with each slave station through the two-wire, the slave station is connected with the high temperature resistant temperature sensor, wireless digital transmission module and switching acquisition module, the wireless module communicates with the surrounding wireless sensors (cooperating with the independent type smoke sensor, etc.); each slave station can communicate with the wireless module, the switching acquisition module and the temperature sensor which it is governed by by the way of address identification;
The LZBUS wiring is embedded inside the rock wool (or other fireproof material) that fills the hollow part of the Liangguo wall. Temperature sensors, wireless communication modules and switching acquisition modules, which are fireproofed, are connected to the LZBUS bus via customized interfaces.

The features and advantages of the fire and explosion-proof intelligent wall integrating Liangguo wall, LZBus and wireless networking technology.

1. Explosion-proof: The smart wall system has superior explosion-proof performance because the inner mold itself has its own explosion-proof and anti-cracking function, and the mortar layer is added with temperature-insulating and explosion-proof materials;
2. The light weight of the wall can greatly reduce the load requirements of the entire explosion-proof building, more structural advantages than the traditional practice (reinforced concrete 400mm-800mm); effectively reduce the cost of civil construction; 
3. Smart wall carrier structure is flexible, can deal with pipeline and cable crossing, can solve the traditional concrete wall can not pipe crossing and open hole requirements. Steel mesh structure skeleton, flexible layout, easy to pipe and cable traversal of holes reserved for construction, can be seamlessly combined with wired and wireless sensor systems; LZBUS only need two wires, while meeting the requirements of power supply and communication, buried in a good solid wall with anti-burning performance, can meet the fire scene emergency requirements;
4. Fire on the application of the most important role is to isolate the fire and on-site parameter sensing, as far as possible to protect the fire control equipment and communication systems are not burned or prolonged by the time of burning. This also provides a guarantee for the fire control room equipment to work more stably in the fire scene, and at the same time can make the internal fire control personnel evacuation to external take-over control through the data outreach into reality.
5. The actual overfire area can be calculated by appropriately arranging induction walls or induction columns indoors and combining them with the CAD drawings of the floors, and this point is actually quite practical.
6. All kinds of cables in the fireproof bridge is actually still very quickly burned, if placed in the pre-buried in the wall inside the bridge, the burn resistance time can be greatly extended, especially fiber optic and network cable.
7. The wall itself will not crumble and cause secondary damage.
8. The wall structure and formula is unique, with more than ten patents, independent intellectual property rights, not easy to be imitated.

V. Content of the main realized functions

1. Build a smart fire wall, this zone HMI to complete the local content display, alarm, data communication function.
2. Creating a firefighting IoT cloud platform. By organically combining hardware and software fire protection facilities and applying data collection, data cleaning, Internet of Things, big data and other technologies, a fire protection Internet of Things cloud platform is constructed. Applying big data technology to the fire IoT cloud platform improves the informatization and automation of fire maintenance, reduces the costs and errors associated with traditional maintenance, and improves the efficiency of fire maintenance industry supervision.
3. Version 1.0, the completion of the ambient temperature collection, wireless networking type stand-alone smoke sensor, dangerous gas alarm (switching input) three main functions. The wireless interface can access the subsequent expansion of the environmental parameters of the sensor data;

VI. Innovative points

1. Technological innovation: creating intelligent fire and explosion-proof walls

Lianggu Construction Engineering Co., Ltd. has the qualification of construction engineering company with Lianggu wall construction, and a series of related technical regulations and atlas of the company. It also independently researches and develops special sensors for supporting, which makes it suitable to be used in offshore oil platforms, power plants, petrochemical facilities, chemical plants, military industrial enterprises, civil defense facilities and industrial zones with hazardous production. The materials and structures used in the wall are explosion-proof and equipped with local sensing capabilities.

Solve the problem of anti-burning cables and equipment of fire alarm information transmission device at fire scene.

2. Intelligent firewalls

Adopting advanced Internet of Things (IoT) technology to create a leading intelligent fire protection explosion-proof wall in the fire protection IoT industry, and independently developed special sensors for supporting (Phase I Customized temperature sensors), real-time monitoring of the field environment temperature data.
Intelligent fire protection explosion-proof wall is mainly characterized by high strength, high safety and good fireproof performance.

VII. About Hainan Shidian

Hainan Shidian Technology Co., Ltd. to "make the standardization of industrial Internet of Things easier" as the vision, focusing on the direction of the Internet of Things industry chain, indoor positioning, sensing and control and data transmission products in the field of continuous research and development, Lego (Lego) production, precise to meet the small amount of industrial Internet of Things products and a variety of demand characteristics, to provide customer Complex environment and personalized needs to meet the real low inventory, high satisfaction of the new supply and demand relationship.

The company has four R&D centers in Shanghai, Suzhou, Chengdu and Taipei, adhering to the group's nearly 40 years of good business resources and reputation, firmly believe in the "be an expert in the industry" business philosophy, precise in the channel, sensitive to the market, focus on products, "research" is reliable, "production" is stable, "sales" is quality, always focusing on the industrial Internet of Things customers personalized scenarios to meet the ultimate needs. We believe in the business philosophy of "being an expert in the industry", we are precise in channels, sensitive to the market, and focus on products, "research" is reliable, "production" is stable, "sales" is quality, and we are always focusing on the ultimate satisfaction of personalized scenarios of industrial IoT customers.

In terms of products, we have both Zigbee positioning products, which have been cultivated by our self-research team for more than 10 years, and UWB positioning products, which are developed by our teams in Shanghai and Taipei, to meet the different needs of customers for positioning accuracy. At the same time, the company also introduces Bluetooth positioning products to supplement the self-developed solutions, in order to fully meet the needs of all kinds of customers.

Software support we integrate the overall program of various industries, actively open interfaces and source codes for system integrators to join, for related system software companies to do case demonstration based on our products to provide convenience, so that the Internet of Things indoor positioning applications broader.