High reliability: Network deployment reduces intermediate communication links, and directly jumps to the Internet, reduces the probability of failure, and improves transmission reliability. It does not require equipment manufacturers to have wireless network planning capabilities and network maintenance.
High security: The operator's network is based on authorized spectrum networking, carrier-class high reliability, anti-interference, based on 3GPP standard network layer security + transport layer security solution + application layer security, and three layers guarantee the security of IoT terminals and data.
Deep coverage: It can achieve a coverage gain of 20db higher than that of GSM; the coverage capacity is increased by 100 times, even in underground garages, basements, underground pipelines and other places where signals are difficult to reach.
Low power consumption: The battery standby time can reach more than 5 years, without frequent battery replacement, reducing maintenance costs.
Evolveable: LPWA (Low Power Wide Area) IoT technology represented by NB-IoT supports the application direction of 5G mMTC (Massive Machine Communication) and continues to evolve.
Perceivable: It can remotely and independently monitor each smoke detector, periodically report the status of the smoke detector, and can remotely configure and diagnose the detector and communication problems.
Easy to install: No need to wire and get electricity, plug and play, simple installation and online debugging, and reduce the deployment cost by more than 90%.
3.1 NB-IoT Smart Smoke Sense Overall Solution
NB-loT smart smoke sensing solution is based on smart smoke sensing, based on the Internet of Things, big data storage and analysis, cloud computing, mobile Internet, combined with the characteristics of the fire detection and alarm industry, breaking through the traditional single product sales model, and expanding new services Channels, provide systematic and comprehensive alarm solutions, create a future-oriented smart smoke system framework, provide value-added services, and create more social value.
The NB-IoT smoke detector solution is built according to the cloud, tube, and terminal system architecture. The solution includes several levels such as the terminal layer, network layer, cloud platform, application layer, and service layer. Through the Internet of Things, cloud computing, and big data And other technologies integrate all levels into an organic whole.
3.1.1 Terminal layer-IoT sensing end integration
Terminal equipment is the basic carrier of the Internet of Things. With the development of the Internet of Things, the terminal gradually evolves from the original dumb terminal to the intelligent terminal. By adding various sensors and communication modules, the terminal can be controlled, managed, and interoperable. Integrate the NB-loT standard module and connect with the NB-loT base station to realize the communication capability. The intelligent terminal uploads the information to the loT platform through the NB-loT base station.
3.1.2 Network layer-NB-IoT is easy to deploy and has wide coverage
The network is the communication foundation of the entire Internet of Things, and different Internet of Things scenarios and devices use different network access technologies and connection methods. For smart smoke sensing scenarios, the NB-loT network based on the 800M frequency band carries smart smoke sensing services. The NB-loT network has the characteristics of large connections, low power consumption, low cost, and wide coverage, which meets the needs of smart smoke sensing communications. In terms of network deployment, NB-loT only uses 180KHZ bandwidth, and can be deployed flexibly in in-band, guard-band, and stand-alone modes. It is easy to deploy through existing LTE networks The upgrade can achieve nationwide coverage. Compared with other LPWA technologies, NB-loT has the advantages of low network construction cost, fast deployment speed, and wide coverage.
The 800M frequency band has great advantages in signal penetration and coverage, and can fully guarantee the stability and reliability of data signal transmission for services such as smart smoke sensing in complex application environments. By integrating communication network capabilities and IT operation capabilities, China Telecom provides smart smoke detector manufacturers with a perceivable, diagnosable, and controllable intelligent network to meet the needs of customers for real-time independent query and management of the working status and communication status of the terminal. . At the same time, in order to meet the different use requirements of the Internet of Things customers in the production test phase, inventory phase, and official use phase of the terminal manufacturing and sales process, it provides the functions of the primary activation period, the silent period, and the secondary activation period of the number.
3.1.3 Platform layer-unified platform multi-service convergence managementThe loT platform supports a variety of flexible deployment modes, which can be deployed on the Li'an Technology Anyi Cloud Platform to provide basic functions such as connection management, device management, data analysis, and API opening. China Telecom is responsible for daily operation and management. The loT platform provides connection status query and management functions such as connection perception, connection diagnosis, and connection control; access to different terminals is realized through a unified protocol and interface, and upper-level industry applications do not need to care about the specific physical connection and data transmission of the terminal device, and realize terminal objectification Management: The platform provides flexible and efficient data management, including data collection, classification, structured storage, data calling, usage analysis, and full life cycle business customized reports. Business modular design, business logic can be flexibly orchestrated to meet the rapid development needs of industry applications.
At the same time, the loT platform cooperates with the NB-loT wireless network to provide functions such as instant issuance, offline command issuance management, periodic data security reporting, and batch equipment remote upgrades; at the same time, it supports economical and efficient pay-per-use billing and facilitates refined operations. dimension.
3.1.4 Operation layer-rich smoke applicationThe IoT application is the upper control core of the Internet of Things business. Based on the IoT platform, smart smoke sensing can focus on the development of diversified application scenarios, so that the Internet of Things can be better embodied. The smart smoke application system obtains data from the terminal layer through the loT platform to help end customers solve the real-time upload and notification of smoke information.
3.1.5 Service layer-smarter, more convenient and more efficientIn the era of the Internet of Things, users' lives have become smarter, more convenient, and more efficient. The combination of IoT technology and smart smoke detection has changed the way users perceive smoke detectors. Through the loT platform, combined with mobile APP, WeChat, etc., users can obtain online, offline, and fault related information about smoke detection, and at the same time, the pass can quickly implement recharge, query and other business transactions, and interact with smoke detection companies in real time.
3.2 Advantages of Smart Smoke SenseThe smart smoke sensor based on NB-IoT technology is different from the traditional networked smoke sensor. The independent smoke sensor has the advantages of low power consumption, no wiring, real-time monitoring, automatic inspection, and multiple information push through mobile phone text messages, APPs, and phones.
3.3 The role of NB-IoT in smart smoke sensing solutionsNB-loT technology is applied to the smart smoke sensor, which can realize the real-time collection of the smart smoke sensor status, remote realization of reset, muffler and other functions with high safety and low cost, and timely analysis and processing of the status information of the smart smoke sensor, thereby Realize more targeted and scientific dynamic management, and improve the management efficiency and service level of Smart Smoke Sense. At the same time, the fire status can be pushed to the owners and other relevant personnel as soon as possible. The advantages of the NB-loT smart smoke sensor solution help to solve the common problems of independent smoke sensor products, as follows:
Three-dimensional alarm, multi-party push:
After detecting a fire, it will send a stereo alarm through detectors, platforms, mobile apps, text messages, and phone calls, and simultaneously push alarms, faults and other information to fire supervisors, community grid members, property management personnel, mini fire stations, etc. Responsible body.
Real-time monitoring and elimination of hidden dangers:
The smart smoke detector is online in real time, monitoring the status of the smoke detection 24 hours a day, and real-time control of hidden dangers such as alarms, failures, and lack of power, which is convenient for management and maintenance personnel to eliminate the hidden troubles at the first time to ensure the normal and effective working status of the smoke detection .
Super battery life, chain alarm:
NB-loT smart smoke sensor uses a low-power communication module to ensure normal battery power supply for more than 5 years; the smoke sensor information is managed by the cloud platform, and the smoke sensor adjacent to the alarm point can be chained to alarm to notify neighbors and evacuate in time , To avoid greater casualties.
Sound platform and convenient management:
The platform has strong PaaS capabilities, complete functions, and open API interfaces, which can seamlessly connect with multiple devices. The technical means of collaborative management of smoke detectors, mobile phones, and platforms are more convenient for the supervision of the competent authorities.
3.4 escort the cityIn general, residential buildings, shops, rental houses, peasant houses, factories and various small workshops have the characteristics of severe environmental degradation, dense and complex flow of people, and obsolete and messy lines. This creates many potential safety hazards. In addition, such places are very dangerous. Fire alarm equipment such as smoke detectors is less installed, and fire incidents occur frequently.
NB-IoT Smart Smoke Sense is based on NB-IoT technology to realize urban air data transmission and collection, ensuring real-time online environmental monitoring, and providing necessary reference for fire rescue and equipment management. At the same time, by building information interconnection channels between various departments, to ensure the timely flow of tasks. Once a fire safety hazard is discovered, report to the police in time, and notify relevant department personnel to quickly go to the scene for treatment, enhance inter-departmental linkage, improve the efficiency of emergency response and rescue, escort city safety, reduce equipment management costs, and improve social stability.
NB-IoT Smart Smoke Sense combines cloud computing, big data and mobile Internet to create a smart smoke sense online service. Through remote monitoring, the Anxiao cloud platform can accurately, efficiently and multi-dimensionally feed back smoke data to users. Users can query fire analysis reports anytime and anywhere, and complete accurate fire estimation, which perfectly solves user fire hazards and other issues. Improve user satisfaction and happiness, work for the well-being of the people, and create a safe, environmentally friendly and intelligent life.
3.6 Improve the monitoring and management of the whole life cycle of smoke perceptionThe NB-IoT smart smoke sensor has the functions of ultra-long standby and stable transmission. It is very suitable for discrete, long-term, and long-distance applications in the Internet of Things independent devices, and in a true sense, it realizes the high practicality of the Internet of Things. From the operation, use, maintenance, and maintenance of the smart smoke sensor, it is always online. Whether it is the user body, the regulatory authority or the manufacturer, the operation of the smart smoke sensor is well known, which improves the maintenance and management of the smoke sensor and changes the traditional passive The method of maintenance inspection reduces workload and ensures the scalability of manpower; improves the capabilities of customer management, project management, scheduling analysis and management, and reduces the operation and maintenance pressure of equipment users, responsible parties and supervisory departments.
In the near-infrared, the wide spectrum of the infrared spectrum, the total reflection mirror is coated with a high reflectivity gold film.
In order to enhance the adhesion of the gold film, a very thin chromium base film is plated.
The gold film of the silicon substrate has strong adhesion, high thermal conductivity (the thermal conductivity is about 111 times that of glass), and the heat resistance is much better than that of the glass substrate.
Because it is a metal film, the reflectance or reflectance wavelength characteristics will not change greatly with the incident angle.
·The gold film has a high reflectivity in the infrared spectrum. The light that is not reflected is completely absorbed by the film and will not pass through.
Gold Mirror,Gold Reflector,Protected Gold Reflector,Protected Gold Mirror
Bohr Optics Co.,Ltd , https://www.bohr-optics.com