Chengdu Zhongshan Technology Group (hereinafter referred to as Zhongshan) was founded in 2004. It is an independent brand with core communication technology for industrial control Internet of Things. It is a national high-tech enterprise engaged in the research and development, production, sales, and application design of industrial control Internet of Things industry application products, a member unit of China Telecom Sichuan Tianyi IoT Industry Alliance, a member unit of Chengdu IoT Development Alliance, a key high-tech enterprise supported by Chengdu City, and an advanced practical technology promotion enterprise of the Ministry of Water Resources. The company is headquartered in the Chengdu IoT Industry Base in Sichuan Province. Since its establishment 16 years ago, it has focused on the research and development, production, sales, and service of wireless communication modules and measurement and control terminals such as LORA, NB-IOT, 4G, and 5G. With a senior R&D team of more than 10 years of experience, the company is one of the earliest well-known manufacturers in China engaged in the research and production of industrial control IoT wireless communication equipment. Since its establishment, the company has made key investments in product research and development and achieved fruitful results. It has 473 national authorized invention patents and multiple software copyrights. The company's products have passed ISO9001 quality system certification, high-tech certification, etc. Zhongshan is committed to the field of industrial control IoT wireless communication applications. Its products are divided into three main lines: industry application terminals, IoT wireless communication products, and IoT application software platforms. It has independently developed 4G/3G industrial grade routers, industrial grade DTUs, industrial grade LORA gateways, and RTUs, as well as NB-IOT IoT terminals. It is the production source of equipment manufacturers and supports customization OEM、 Distribution and OEM processing, currently with equipment sales covering 30 provinces in China, have been widely used in various industries such as telecommunications, mobile, securities, railways, electricity, healthcare, schools, petrochemicals, taxation and insurance, public transportation, real estate, tourism, catering, and security.