Bivocom TR321-M has been certified by Monaco Telecom, it supports LTE CAT M1 and NB-IoT network, back support EDGE/GPRS, which is a good replacement for 3G/2G network and those applications that don’t require high speed and wide bandwidth for data transmission. Besides, its openwrt based Linux OS, supporting Python/C/C++ programing via Bivocom SDK, allow IoT developers to install their own application on TR321-M. In addition, TR321-M has 1-RS232, 1-RS485 and 2-RJ45 ports for industrial IoT application, and it has rich protocols, such as MQTT, JSON, Modbus RTU, and VPN(PPTP, L2TP, IPsec, GRE, OpenVPN).

About Bivocom

Bivocom was founded in 2014 by a creative and innovative team has more 10 years IoT experience, aiming to make a better and smarter world. By serving the global partners and customers with industrial cellular modems, routers, gateways, RTUs and IoT platform, Bivocom IoT solutions have been widely used for diverse industries, such as water, gas, oil, power, transportation, smart city, industry 4.0, smart pole, smart grid, digital signage, vending and more.

Image source:

Parking vending machines from http://www.coma-carparking.com/

Parking access from https://www.pipstechnology.com/

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What is HVAC?

HVAC stands for Heating, Ventilation, and Air Conditioning, and refers to the different systems used for moving air between indoor and outdoor areas, along with heating and cooling for residential, commercial and industrial buildings. They are used to keep people warm and cool in winter and summer, and keep people healthy by filtering and cleaning the indoor. Besides, they are also used for maintain the ambient temperature and humidity for things in commercial and industrial buildings, such as server room, factories, biological medicine manufacturing and storage, to keep the things at a certain level of temperature and humidity.

Figure 1. All-air HVAC system for single zone.

Source: https://www.intechopen.com/books/hvac-system/types-of-hvac-systems

Although there are so many applications of HVAC, today, we’re going to talk about smart HVAC in commercial building. Let’s have an overview of what is smart HVAC and what benefits we can get from it?

Why Smart HVAC?

A smart HVAC system leverages networked HVAC components, sensors and other technologies, such as IoT(Internet of Things), big data, cloud, artificial intelligence, etc., it’s the natural evolution of a building automation system (BAS).

Image source: Daikin

Why we need smart HVAC?

As you may know, HVAC system consumes about 40% of energy of whole commercial building, while after that, it’s lighting. So how to find a solution that will help the building owner save energy consumption, lower operation costs has become a challenge. While using smart HVAC, as there is an IoT router or gateway like Bivocom TR321-M connect to controllers or sensors of HVAC systems, to transfer the data to remote cloud server. In this way, building manager will easily know the status of HVAC and remotely control it on and off. Besides, the IoT enabled HVAC systems also provides predictive maintenance benefits, where maintenance crew will the potential operation issue of whole system before its badly breakdown, as well as remote troubleshooting and maintenance.

Benefits of Smart HVAC

1. Self-monitor operation conditions, potential malfunction can be detected and warned
2. Lower energy consumption, Proactive energy saving management
3. Predictive data analysis, proactively identifies maintenance
4. Save labor hour and maintenance cost
5. Cut carbon emissions
6. Improve building performance and efficiency

Why Daikin Chooses Bivocom LTE-M/NB-IoT Router TR321-M?

Daikin is the leader to provide the smart HVAC systems to global customers, so there are many legacy 3G routers and 4G routers installed in their systems. But as the phase out of 3G routers, price of other brands’ 4G router and  data plan are high, while their data bandwidth requirement is not that big, so they are looking for a new and cost-effective solution to replace legacy 3G router and 4G router.

Conclusion

There are benefits of TR321-M for Daikin’s smart HVAC.

1. LTE CAT M1 and NB-IoT technology, provides better coverage and lower energy consumption
2. Openwrt based Linux OS, provides C/C++/Python programming environment for IoT developers, where they can install their own applications on Bivocom IoT routers
3. Instead of using 4G router, LTE-M/NB-IoT router TR321-M is a more cost-effective solution, as both its hardware and data plan is cheaper than 4G.
4. TR321-M is able to operate between -35~+75^。C, it supports automatic reboot, or reboot via SMS or commands to ensure the robust and stable connectivity.
5. Bivocom provides fast, flexible technical support and customized R&D support for IoT developers, helping them to bring their IoT ideas to reality quickly.
6. TR321-M supports industrial protocols, such as Modbus RTU/TCP, MQTT, JSON, quickly convert data to the format customer required, helping Daikin save bandwidth of server.

The post Daikin Chooses Bivocom IoT Router for Smart HVAC appeared first on Bivocom.

LTE CAT M1 uses the existing LTE network to operate, but unlike NB-IoT (which uses unused spectrum or spectrum located in the guard band to operate) is that LTE CAT M1 operates in the same LTE as used in cellular applications Work within the frequency band. One of its advantages is that it has the ability to switch from one cell site to another, which makes it possible to use the technology in mobile applications; while NB-IoT does not allow mobile switching from one cell site to another cell site , So it can only be used for fixed applications, that is, applications limited to the area covered by a single cell site.

Since LTE Cat M1 technology can coexist with 2G, 3G and 4G mobile networks, it has all the advantages of mobile network security and privacy features, such as supporting user identity confidentiality, entity authentication, confidentiality, data integrity, and mobile devices Identification function, etc.

The latest LTE CAT M1 specification was approved in the 13th version of the 3GPP specification (LTE-Advanced Pro) in June 2016. According to the definition of Release 13, the technical specifications of LTE CAT M1 are as follows:

• Deployment: LTE frequency band in-band
• Downlink (downlink) peak data rate: 1 Mbps
• Uplink (uplink) peak data rate: 1 Mbps
• Delay time: 10-15 ms
• Technical bandwidth: 1.08MHz
• Duplex technology: full duplex or half duplex
• Transmit power level: 20/23 dBm

3GPP LPWAN standards

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