Search Results - seeed

Grove – Doppler Radar (BGT24LTR11)-24GHz Transceiver

您將如何構建一個系統，該系統可以計算到物體的距離或檢測是否存在運動？ 通常，您將使用超聲波或LiDAR傳感器進行距離測量，並使用PIR運動傳感器進行運動檢測。 如果我們告訴您，有一個多合一的模塊，它可以更精確地完成所有這些功能，並且還執行諸如移動物體的速度檢測和物體角度檢測之類的功能。你會相信嗎？ 我們已經厭倦了將這些傳統模塊用於運動感應應用程序，並希望通過集成新技術為您提供更好的解決方案。 恩…格羅夫歷史上的第一次，我們很高興為您帶來基於雷達技術的格羅夫模塊！ 這就是格羅夫-多普勒雷達。 格羅夫–多普勒雷達基於BGT24LTR11矽鍺MMIC，它是24GHz雷達收發器。它由基於Arm®Cortex®-M0的XMC1302 MCU驅動。它採用緊湊型封裝，功耗極低，可提供高精度測量。 該模塊的高頻率允許通過物體的高穿透力，因此，該模塊在部署時無需暴露在外部，而應暴露在物體後面。反過來，這在安全系統中非常有用。而且，它能夠在惡劣的天氣條件下運行，例如高溫，灰塵和雨水。 您可以觀看下面的Seeed Weekly Show視頻，以了解有關此產品和其他有趣產品的更多信息。

特徵

• Grove 系列中第一個基於雷達的傳感器
• 體積小巧，易於部署
• 輕量化設計，適用於無人機應用
• 低功耗，可長時間使用
• 用於高精度測量運動和速度的 24GHz 收發器 MMIC
• 使用電磁波快速響應
• ESD 保護，避免 ESD 衝擊導致的系統故障
• 高穿透力，使其可以部署在物體後面
• 在惡劣的天氣條件下（溫度、光線、灰塵、雨水）保持運行

多普勒雷達技術如何在該模塊中工作？

多普勒雷達的工作原理是從發射器（TX天線）以精確的頻率向移動物體發送一束電磁輻射波。 電磁輻射波一旦與物體接觸，便會朝接收器（RX天線）傳播。但是當波從移動物體反射回來時，該波現在具有與原始頻率不同的頻率，它發出了光。 然後該頻率的變化可用於計算移動物體的速度。我們還為您提供了一個內置函數getSpeed（），可幫助您輕鬆獲取目標對象的移動速度。詳細信息可以在產品的Wiki頁面上找到。

進階用戶的更多可能性

Grove–多普勒雷達模塊的設計使MCU和MMIC的引腳分佈得以中斷，從而使高級用戶可以修改該模塊。 同樣，板載LED指示燈可以幫助用戶識別物體是朝著模塊移動還是遠離模塊移動。當物體移向雷達時，指示“ NEAR”；當物體移離雷達時，指示“ AWAY”。

規格

應用

• 智能家居
• 智能建築
• 自動門
• 照明控制
• 工業機器人
• 入侵者警報系統
• 無人機

硬件概述

出貨清單

• Grove – 多普勒雷達 x1
• Grove 連接線 x1

Documents

• https://wiki.seeedstudio.com/Grove-Doppler-Radar/

＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝

Grove – Doppler Radar (BGT24LTR11) – 24GHz Transceiver

Features 

• The first radar-based sensor in the Grove Family
• Compact size for easy deployment
• Light-weight design, suitable for UAV applications
• Low power consumption for prolonged usage
• 24GHz Transceiver MMIC for high-precision measurements of movement and speed
• Fast response using electromagnetic waves
• ESD protection to avoid system failures caused by ESD strikes
• High penetration which allows it to be deployed behind an object
• Maintains operation through harsh weather conditions (temperature, light, dust, rain)

Description

How would you build a system that could calculate the distance towards an object or detect whether there is motion present?

Normally you would use an Ultrasonic or LiDAR Sensor for distance measurement and PIR Motion Sensor for motion detection.

What if we told you there is an all-in-one module that could do all these functions more precisely and also perform functions such as velocity detection of moving objects and angle detection of objects. Would you believe it?

We were tired of using these traditional modules for motion-sensing applications and wanted to deliver you a better solution, integrating new technologies.

Well…For the first time in the history of Grove, we are very excited to bring you a Grove Module based on Radar Technology!

This is the Grove – Doppler Radar.

The Grove – Doppler Radar is based on the BGT24LTR11 Silicon Germanium MMIC which is a 24GHz radar transceiver. It is driven by an XMC1302 MCU based on Arm® Cortex®-M0. This comes in a compact package and runs on very low power, providing high-precision measurements.

The high frequency of this module allows for high penetration though objects and therefore this module does not need to be exposed outside when deploying, but rather behind an object. This, in turn, is extremely useful in security systems. Also, this is able to operate in harsh weather conditions such as high temperatures, dust, and rain.

How Does Doppler Radar Technology Work in This Module?

Doppler radar works by sending a beam of electromagnetic radiation waves from the transmitter (TX Antenna), with a precise frequency, at a moving object.

Once the electromagnetic radiation wave comes in contact with an object, it travels back towards the receiver (RX Antenna). However, when the wave got reflected from the moving object, the wave now has a different frequency compared to the original frequency, it emitted.

Then the change in this frequency can be used to calculate the velocity of the moving object. We also provide you with a built-in function getSpeed() which helps you easily get the moving speed of the object you are targeting. Detailed information can be found on the product’s wiki page.

More Possibilities for Advanced Users

The Grove – Doppler Radar module is designed so that the pinouts are broken out from the MCU and the MMIC to enable advanced users to tinker with this module.

Also, the onboard LED indicators can help users to identify whether the objects are moving towards or away from the module. When the object moves towards the radar, it indicates “NEAR” and when the object moves away from the radar, it shows “AWAY”.

All in all, we believe that the Grove – Doppler Radar will open you to a whole new world of possibilities!

Specifications

Applications

• Smart Home
• Smart Building
• Automatic Door
• Lighting Control
• Industrial Robotics
• Intruder Alarm Systems
• UAV

Hardware Overview

Dimensions

Parts List

• 1 x Grove – Doppler Radar
• 1 x Grove Cable