What is the difference between LiDAR and millimeter-wave radar?

The differences between LiDAR and millimeter-wave radar extend beyond their underlying technical principles; they also lie in their distinct application scenarios and performance advantages. LiDAR detects targets by emitting laser beams and receiving the reflected signals, offering extremely high precision and resolution. It can generate detailed three-dimensional images, providing autonomous vehicles with accurate environmental perception—enabling the identification of pedestrians, vehicles, road signs, and other obstacles. Moreover, LiDAR excels in range measurement, accurately determining the position and velocity of objects at considerable distances, thereby ensuring safe vehicle operation. In contrast, millimeter-wave radar primarily relies on electromagnetic waves in the millimeter-wave band for detection. Its strengths include the ability to penetrate adverse weather conditions such as rain and fog, strong anti-interference capabilities, and long-range detection. In the field of autonomous driving, millimeter-wave radar is mainly used for speed and distance measurement; particularly at high speeds, it can swiftly capture dynamic information about vehicles ahead, supplying reliable data to support the vehicle’s active safety systems.

What communication methods are available for gateway devices?

Gateway devices support a wide variety of communication methods, broadly categorized into wired and wireless technologies. The choice of communication method should be tailored to the specific application scenario and requirements.

What protocols are supported by the gateway?

What protocols can the gateway handle? In addition to the well-known TCP/IP protocol—the most fundamental communication protocol on the internet—the gateway can naturally process it with ease. Furthermore, HTTP and HTTPS are also frequently handled by gateways; they are used for unencrypted and encrypted web traffic, respectively, ensuring data security and integrity. With the rise of the Internet of Things (IoT), the MQTT protocol has gradually become one of the key protocols that gateways must support. Known for its lightweight design, low overhead, and high scalability, MQTT has established a strong foothold in data transmission among IoT devices. Meanwhile, the CoAP protocol has also gained widespread adoption in the IoT field, enabling resource-constrained devices to perform simple interactions.

The New World of the Internet of Things: “When Human Presence Sensing Meets Millimeter-Wave Radar Technology”

Hengyi Technology’s 60 GHz millimeter-wave radar, a sensor for both manned and unmanned platforms, can detect the presence of stationary, slightly moving, or actively moving personnel targets, offering high range accuracy and a low false-alarm rate. Compared with infrared, video, and laser technologies, it is less affected by fog, smoke, dust, and nighttime conditions, ensuring reliable operation in all weather. Even in challenging environments such as humid restrooms, it maintains excellent detection performance.

Gateway Upgrade Strategy in the Context of DeepSeek Technology Trends

Under the DeepSeek technology trend, this paper explores gateway upgrade strategies. Large‑model migration lowers the barrier to entry, enabling AI technologies to expand into edge devices. Multimodal scene perception facilitates intelligent device management and control. As data‑processing workloads grow, gateways must handle increasingly complex data. Meanwhile, security challenges are intensifying, requiring robust defenses against an expanding array of threats.

IoT Gateway: The “Neural Center” for Building a Smart Ecosystem

An analysis of the role of edge computing gateways in smart cities, their industrial‑grade design, real‑world application cases, and future development trends reveals that IoT gateways, as the “neural center” of the smart ecosystem, are assuming an increasingly pivotal role in modern urban and industrial systems. As technology continues to advance, IoT gateways are poised to play an even more significant part in the smart world of tomorrow.

Millimeter-Wave Radar: Unlocking the Unlimited Potential of Smart Homes

Millimeter-wave radar has demonstrated immense potential in the smart home sector. From innovative consumer‑grade applications to deep integration with smart speakers, and through technology optimizations that meet international certifications, every stage is driving smart homes toward greater intelligence, convenience, and security. As the technology continues to advance, millimeter-wave radar is poised to bring even more groundbreaking innovations to the smart home ecosystem, ushering in a new era of intelligent living.

Can a 60 GHz millimeter-wave radar sensor penetrate glass?

Physical Characteristics of Millimeter Waves The wavelength of 60 GHz millimeter waves is approximately 5 mm, classifying them as high-frequency electromagnetic waves. Their energy lies between that of infrared radiation and microwaves, and they exhibit natural penetration through non-metallic materials such as glass and plastic. The dielectric constant of glass—typically around 6.5 to 7.5—determines its penetration loss; for ordinary single-layer glass, the attenuation is usually less than 5 dB, meaning that more than 80% of the signal can effectively pass through.