Application of NB-IoT in Smart Smoke Solution

Fire is undoubtedly one of the biggest threats to the safety of people and public property. In recent years, there have been more and more independent smoke detectors, but there are limitations due to the single function of independent smoke detection products, which can only send out sound and light alarms. With the maturity of NB-IOT technology worldwide, new smart smoke detection solutions are coming out.

Shortcomings of traditional independent smoke detection

1. A large number of smoke detectors leads to network congestion, failure cannot be reported, and network instability due to the installation of equipment indoors.

2. Most of the independent smoke detectors on the market today use 1.5V alkaline LR6 batteries, which generally have a service life of about three years.

3. independent smoke detection in the detection of fire, sound and light alarms, the sound alarm is greater than 80dB, and the person is asleep and can not be sure to hear the alarm sound.

4. independent smoke detection after installation, the equipment may fall off, damage and other phenomena, can not keep abreast of the equipment status, can not ensure the normal operation of the equipment.

5. stand-alone smoke detection can only achieve point-to-point single space detection alarm, does not have multi-party linkage alarm and cross-space alarm function, when the detection of fire after the alarm in a single way, not necessarily the first notification in place, while not being able to notify the alarm information to the adjacent evacuation of personnel.

Intelligent firefighting solutions

NB-IoT (Narrow Band Internet of Things), i.e. cellular-based narrow band IoT, is built on the cellular network, consuming only about 180KHz bandwidth, and can be deployed directly on a GSM network, UMTS network or LTE network to reduce deployment cost and achieve a smooth upgrade. NB-IoT has four major highlights: wide coverage, large connection, low power consumption and low cost.

1. Wide coverage, which will provide improved indoor coverage. Under the same frequency band, NB-IoT gains 20dB over the existing network, equivalent to improving the ability to cover the area by 100 times.

2. The ability to support massive connections, NB-IoT can support 100,000 connections in one sector, supporting low latency sensitivity, ultra-low device cost, low power consumption, and optimized network architecture.

3. Lower power consumption. The standby time of the NB-IoT terminal module can be up to 10 years. The standby time of a traditional smoke sensor is only three years, and it is undetectable after running out of power.

4. lower module cost, as NB-IoT becomes more and more popular, the cost of node modules will also become lower and lower.

ZLG Zhiyuan Electronics NB-IoT module

ZM7100 is a high-performance, low-power NB-IoT wireless communication module designed with a ZTE Microelectronics RoseFinch7100 chip, which supports telecom and mobile bands. The module size is only 16×18mm, the smallest standard size, which can meet the demand of terminal devices for small-size module products, and it has supported mainstream OneNet Cloud, Sky Cloud and Ali Cloud as well as users' private clouds.

ZM7100 adopts the LCC+LGA package, which provides customers with a reliable connection and easy mass production. It adopts SMT patch technology, which makes ZM7100 highly reliable and can meet the application requirements in various environments.

The features of the module are as follows:

Power consumption of only 2uA in PSM mode;

The industry's first secure NB-IoT solution;

Ultra-small size of 16×18mm;