Intelligent Campus Smoking-Prohibition Solution for Students

Recently, primary and secondary school students, in pursuit of the so‑called “cigarette‑card trend,” have even begun experimenting with smoking and using cigarettes as bargaining chips—actions that carry far‑reaching consequences. Smoking among minors not only harms their respiratory systems and accelerates the decline of cardiopulmonary function but can also lead to a range of chronic diseases, severely impacting their growth and development. Worse still, such harmful behavior can easily foster negative social habits, distort values, and negatively affect academic performance and future life prospects. All sectors of society must take this issue seriously, strengthen education and guidance, and create a healthy, smoke‑free environment to protect young people from the dangers of tobacco. To effectively monitor smoking in student dormitories and on campus, intelligent anti‑smoking solutions have emerged. We will introduce an intelligent smoking‑detection system for student dormitories and campuses, based on cigarette‑detection sensors, LoRa communication gateways, and alarm control panels. This solution aims to enhance the efficiency of dormitory and campus management while fostering a conducive learning and living environment.

Do millimeter-wave radars emit radiation? At what power level do millimeter-wave radars become harmful to the human body?

Millimeter-wave radar does indeed emit radio waves—also known as radar waves or electromagnetic waves—during operation, and these waves constitute non‑ionizing radiation. While millimeter-wave radar emits non‑ionizing radiation, the associated health risks are extremely low. Under normal operating conditions, millimeter-wave radar can be considered safe. Nevertheless, it is still important to remain aware of potential safety concerns and to implement appropriate protective measures.

New Product Alert – Explosion-Proof Temperature and Humidity Sensor

The wireless explosion-proof temperature and humidity sensor is a high-precision, low-power device that integrates remote monitoring. It features a built-in high-capacity lithium‑ion battery, enabling operation for over six years without recharging. Certified for explosion-proof use, it can operate under harsh conditions in specialized industries such as nuclear power, oil, chemical processing, electric power, gas, and coal mining. It supports Wi‑Fi, LoRa/LoRaWAN, and Cat1 (4G) connectivity.

What are the differences among the 2-, 3-, and 4-wire configurations of a PT100?

When selecting a PT100 sensor, it is also necessary to consider performance parameters such as its temperature range, response time, and stability to ensure it meets the requirements of the specific application. Additionally, during installation and operation, proper wiring and calibration procedures must be followed to guarantee the accuracy and reliability of the measurement results.

Why do you need a LoRaWAN server when purchasing a LoRaWAN gateway?

A LoRaWAN gateway directly forwards received LoRaWAN data to the LoRaWAN server, and this process requires the LoRaWAN server. This is because LoRaWAN employs a star‑topology wireless network architecture that includes end nodes, gateways, a network server, and an application server—forming a hierarchical flow from LoRaWAN end nodes, through LoRaWAN gateways and the LoRaWAN server, to the cloud platform.

Hengyi Technology wishes you a happy Mid-Autumn Festival!

The Mid-Autumn moon shines bright—how delightful it is to share this moment together. On this night of family reunion, bonds of friendship abound. Amid these days filled with fresh splendor, we extend our warm holiday greetings and heartfelt wishes to you and your loved ones. The achievements of Hengyi Technology today would not have been possible without your support and trust. Thanks to your attention and collaboration, Hengyi Technology has been able to grow steadily. Looking ahead, we look forward to continuing our cooperation and exchanges with you. With sincere best wishes to you and your family: Happy holidays, good health, smooth work, a joyful family reunion, and success in all endeavors. Shenzhen Hengyi Technology Co., Ltd.

Hengyi Technology wishes everyone a happy National Day.

Dragon soars, prosperity thrives—celebrating a glorious year; the National Day festival brings joy to all. Across the nine provinces, we sing of a flourishing age; throughout the four seas, jubilation dances in vibrant splendor. May you enjoy peace and health, with blessings filling your home; may the spirit of devotion to country and family endure through the ages. Together, let us savor the picturesque beauty of our land, and make the most of this precious time of youth.

Configuration of LoRaWAN Servers and Gateways

How LoRaWAN sensors connect to the internet and how LoRaWAN gateways link to the LoRaWAN server are common challenges for beginners. This document provides a detailed guide on installing and configuring the LoRaWAN server (ChirpStack), setting up Hengyi’s LoRaWAN gateway, and configuring Hengyi’s LoRaWAN sensors for network access.