Heyuan Intelligence

13/10/2026

🔧 **Modbus Protocol Explained: How Do Industrial Devices Communicate?**

How do energy meters, PLCs, sensors, and industrial gateways exchange data reliably?

Modbus is one of the most widely used communication protocols in industrial automation and IoT applications. 🌐

In our latest article, you'll learn about:

✅ Modbus RTU, ASCII, and TCP
✅ Modbus message structure and function codes
✅ Common Modbus testing and troubleshooting tools

Whether you're working with smart meters, industrial gateways, or energy management systems, understanding Modbus can help you integrate devices more efficiently.

📖 **Read the full article here:**
https://www.heyuanintel.com/news/news/Modbus_Protocol_and_Common_Tools.html

💡 Follow Heyuan Intelligence for more practical insights into smart metering, industrial IoT, and energy management solutions.

Explore Modbus protocol, including Modbus RTU, Modbus TCP, frame structure, function codes, and common Modbus tools for industrial communication

10/10/2026

⚡ **Is Your Electrical System Operating at Its Best?**

Poor power quality can affect equipment performance, increase energy losses, and cause unexpected problems in industrial and commercial facilities.

But what should you look out for? 👇

🔹 **Voltage Deviation & Fluctuation** – Keep an eye on abnormal voltage conditions.
🔹 **Frequency Deviation** – Understand power system frequency stability.
🔹 **Harmonic Distortion** – Identify waveform distortion caused by nonlinear loads.
🔹 **Three-Phase Voltage Unbalance** – Help reduce the risk of motor overheating and unnecessary losses.
🔹 **Power Supply Interruptions** – Understand how interruptions can affect daily operations.

🏭 From factories and commercial buildings to industrial parks and energy storage systems, power quality monitoring helps engineers better understand electrical conditions and make informed maintenance decisions.

At **Heyuan Intelligence**, we provide smart metering products and energy management solutions to support smarter electrical monitoring and energy management.

📖 Want to learn more about power quality indicators and their practical applications?

👉 Read the full article:
https://www.heyuanintel.com/news/news/What_Are_the_Key_Indicators_of_Power_Quality.html

💬 **Which power quality issue matters most in your facility?** Share your thoughts in the comments!

Learn about key power quality indicators, including voltage deviation, frequency variation, harmonic distortion, voltage unbalance, and power quality monitoring solutions

23/09/2026

⚡ Three-Phase Energy Meter + Built-in Power Control

Meet HEYUAN DZS300 — a DIN-rail energy meter designed to measure, communicate and control.

✔ 0.5S High-Accuracy Metering
✔ Built-in High-Capacity Relay
✔ RS485 + Modbus-RTU
✔ Remote Power Switching
✔ Scheduled Power ON/OFF
✔ Malicious Load Detection

Ideal for apartments, commercial buildings, offices, and multi-user electricity management.

Measure your energy. Connect your system. Control your power.

🔗 Learn more about DZS300: https://www.heyuanintel.com/Electricity_Meters/AC_Din_Rail_Energy_Meter/Three_Phase_Din_Rail_Mounted_Internal_Control_Energy_Meter_1.html

23/09/2026

⚡ Smart Metering. Smart Control.

The HEYUAN DZS100 combines single-phase energy metering, RS485 communication and internal power control in one compact DIN-rail solution.

✔ Class 1 Energy Metering
✔ Built-in High-Capacity Relay
✔ RS485 + Modbus-RTU
✔ Remote Power Switching
✔ Scheduled ON/OFF
✔ Malicious Load Detection

Ideal for apartments, offices, commercial buildings and multi-user electricity management.

Measure your energy. Connect your system. Control your power.

🔗 Discover DZS100: https://www.heyuanintel.com/Electricity_Meters/AC_Din_Rail_Energy_Meter/Single_Phase_Din_Rail_Mounted_Internal_Control_Energy_Meter.html

17/09/2026

Why is MQTT so widely used in IoT? MQTT is a lightweight messaging protocol designed for efficient communication between large numbers of devices, sensors, gateways, and platforms. Its publish/subscribe architecture makes it especially suitable for IoT and Industrial IoT applications such as smart metering, energy monitoring, remote data transmission, and industrial equipment monitoring.

In our latest article, we explain how MQTT works, the roles of the Publisher, Subscriber, and MQTT Broker, the difference between MQTT and HTTP, and how MQTT can work together with RS485/Modbus devices and Industrial IoT Gateways in real-world industrial applications.

👉 Read the full article: https://www.heyuanintel.com/news/news/What_Is_MQTT_Why_Is_It_So_Widely_Used_in_IoT.html

16/09/2026

**🚀 ASDU-LS Upgraded: New Wi-Fi Version + 4 Digital Inputs**

More connectivity options. More visibility into your field devices.

We’re introducing the upgraded **ASDU-LS Smart Gateway** from **Heyuan Intelligence**—building on its existing capabilities with two additions:

🔹 **New Wi-Fi version** — an additional connectivity option for projects using wireless networks.
🔹 **4 digital inputs (DI)** — collect digital status signals alongside communication data from connected devices.

Equipped with **4 isolated RS485 ports and 2 independent Ethernet ports**, ASDU-LS supports Modbus RTU, Modbus TCP/IP, DLT-645 and IEC60870-101/103/104. OEM & ODM protocol customization is also available to meet specific integration requirements.

From **smart metering and industrial data collection to substation and distribution automation**, ASDU-LS connects field equipment with monitoring systems for data acquisition, transmission and monitoring.

**Planning a new project or upgrading an existing installation?**
Share your device protocols and connectivity requirements with us to discuss the right ASDU-LS configuration.

ASDU-LS: https://www.heyuanintel.com/Data_Tranmision_Terminals/Industrial_Gateway/Intelligent_Communitaion_Gateway.html

📧 Email: [[email protected]](mailto:[email protected])
📱 WhatsApp / WeChat: +86 18063422204
🌐 Website: `www.heyuanintel.com`

10/09/2026

**Still relying on manual meter reading? It may be costing more than you think. ⚡💧**

In residential communities, industrial parks, commercial buildings, and factories, manual meter reading can be time-consuming and prone to missed readings, recording errors, and delayed detection of abnormal energy consumption. With IoT-based remote meter reading, electricity, water, gas, and heat data can be collected automatically and managed through a centralized platform.

Smart metering is not only about reading meters remotely. It can also help organizations:

✅ Reduce manual meter-reading work
✅ Improve billing accuracy and data traceability
✅ Detect abnormal consumption earlier
✅ Analyze historical energy trends
✅ Manage multiple buildings and metering points from one platform

In one industrial park project featured in our latest article, **400+ meters were connected**, significantly reducing the workload required for routine meter reading while improving visibility into water and electricity consumption.

Discover how **IoT smart metering and remote meter reading** are helping organizations move from traditional manual processes toward more efficient, data-driven energy management.

👉 Read the full article:
[Smart City IoT Metering: How Remote Meter Reading Enables Digital Energy Management]
https://www.heyuanintel.com/news/news/Smart_City_IoT_Metering_How_Remote_Meter_Reading_Enables_Digital_Energy_Management.html

Learn how IoT smart metering enables remote meter reading, automated data collection, energy monitoring, and digital energy management for buildings, industrial parks, and smart cities

10/09/2026

LoRa or LoRaWAN — which one is right for your project?

Choosing a wireless communication solution is not only about range. The right choice also depends on your network size, RS485/Modbus interface, power supply, installation environment, cloud requirements, and regional frequency band.

For local communication between meters, PLCs, inverters, and industrial devices, LoRa transparent transmission can be a simple and cost-effective way to replace long cables. For larger projects with many distributed devices and centralized cloud management, LoRaWAN is usually a better fit.

In our latest guide, we explain how to choose the right LoRa solution for different applications, including smart metering, industrial automation, solar inverters, smart agriculture, and environmental monitoring.

Read the full guide here:
https://www.heyuanintel.com/news/news/How_to_Choose_the_Right_LoRa_Module_A_Practical_LoRa_vs_LoRaWAN_Selection_Guide.html

Find the perfect solution to meet your energy needs - HEYUAN Intelligence offers a variety of smart meters suitable for both homes and businesses! Learn about the different types of energy and power meters that can be customized according to your specific requirements. Purchase your smart meter now

27/08/2026

Looking for a simple way to monitor electrical equipment temperature wirelessly?

The **HYJT-W Mini Passive Wireless Temperature Sensor** is designed for real-time temperature monitoring of critical electrical connection points, helping detect abnormal temperature rise before it develops into a serious fault.

✅ Passive wireless monitoring
✅ Compact design
✅ IP68 protection
✅ Real-time temperature measurement
✅ Suitable for switchgear, busbars, cable joints, transformers and substations

Combined with a wireless receiver and gateway, it can build a complete remote temperature monitoring system for safer and smarter power distribution.

🔗 Learn more:
https://www.heyuanintel.com/Electrical_Safety_Solution/Wireless_IOT_Sensor/Wireless_Temperature_Sensor/Mini_Passive_Wireless_Temperature_Sensor.html

13/08/2026

🏢 Why Is LoRaWAN Important for Smart Building Connectivity?

Smart buildings need more connected devices, but adding cables everywhere can be costly and difficult—especially when upgrading existing buildings.

LoRaWAN provides a low-power, long-range wireless connectivity option for applications such as:

🔹 Energy monitoring
🔹 Environmental sensing
🔹 Equipment monitoring
🔹 Building automation
🔹 BMS integration
🔹 Smart building retrofits

And LoRaWAN doesn't have to replace existing technologies like Modbus, BACnet, KNX, Wi-Fi, or 5G. It can work alongside them to create a more flexible IoT connectivity architecture.

👉 Want to learn how LoRaWAN can support smarter buildings?

Read the full article:
https://www.heyuanintel.com/news/news/Why_is_LoRaWAN_becoming_an_important_option_for_smart_building_connectivity.html

Discover why LoRaWAN is becoming an important connectivity option for smart buildings, enabling low-power, wide-area IoT sensing, BMS integration, energy monitoring, and wireless building automation