Related Manuals for Hi-Link HLK-LD2420
Summary of Contents for Hi-Link HLK-LD2420
- Page 1 Shenzhen Hi-Link Electronic Co.,Ltd HLK-LD2420 User Manual Version：V1.0 Revise date：Feb24,2023 All rights reserved © Shenzhen Hi-link Electronic..co Ltd...
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Page 2: Table Of Contents
Content 1. PRODUCT DESCRIPTION............................1 1.1. MAIN FEATURES..............................1 1.2. APPLICATION SCENARIOS........................... 2 2. SYSTEM DESCRIPTION............................. 2 3. HARDWARE DESCRIPTION............................. 4 4. SOFTWARE DESCRIPTION............................5 4.1. F4.1. FIRMWARE CONFIGURATION........................5 4.2. UPPER COMPUTER USE............................6 4.2.1 PARAMETER SETTING............................6 4.2.2. BOTTOM NOISE SCANNING..........................7 4.2.3. BOTTOM NOISE DATA VIEW........................... 8 5. -
Page 3: Product Description
HLK-LD2420 is mainly used in indoor scenes to sense whether there is a moving or slightly moving human body in the area and refresh the detection results in real time. It has a maximum sensing distance of 8 m and can be easily configured to sense the distance range, sensitivity and refresh time in different zones.It supports GPIO and UART interface, which is plug-and-play and can... -
Page 4: Application Scenarios
(sensor lamp, bulb lamp, etc.). 2. System Description HLK-LD2420 is an intelligent and accurate human sensor based on Hylink S3 series millimeter wave sensor chip. The sensor uses FMCW FM continuous wave, combined with radar signal processing and built-in intelligent human sensing algorithm to detect human targets in a set space and update the detection results in real time. - Page 5 HLK-LD2420 User Manuals The HLK-LD2420 specification parameters are shown in Table 2-1. Minimum Typical Parameters Remarks Unit Maximum Hardware Specifications Supported Bands 24.25 Comply with FCC, CE, Commission-free certification Support maximum sweep 0.25 standards bandwidth Maximum equivalent omnidirectional radiated power...
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Page 6: Hardware Description
HLK-LD2420 User Manuals 3. Hardware Description The picture below shows the front and back of the module. The module is equipped with 5 pin holes (factory does not come with pins) called J2 for power supply and communication; J1 is the SWD J1 is the SWD interface, which is used for MCU program burning and debugging. -
Page 7: Software Description
HLK-LD2420 User Manuals 4. Software Description This chapter introduces the firmware debugging of HLK-LD2420 and the use of the upper computer tools. The HLK-LD2420 is shipped with burned-in system firmware, the firmware version is detailed in the module package. Hailing Technology provides visualization and configuration software for HLK- LD2420 hardware, which is convenient for developers to configure HLK-LD2420 parameters according to the usage scenarios and optimize the sensing effect. -
Page 8: Upper Computer Use
User Manuals 4.2. Upper computer use This section introduces the use of the HLK-LD2420 module's upper computer tool to help users understand the meaning of the relevant parameters and how to obtain them. Obtain the HLK-LD2420's companion host computer tool "HLK-LD2420_TOOL" from Step 1: Hailing Technology's website. -
Page 9: Bottom Noise Scanning
HLK-LD2420 User Manuals The explanation of the parameters involved in the upper computer tool interface is detailed in Table 4- Table 4-2 Explanation of the parameters of the upper computer tool interface Parameter Explanation Parameter Range Name Used to set the minimum distance gate for radar detection. -
Page 10: Bottom Noise Data View
HLK-LD2420 User Manuals Figure 4-3 Upper computer bottom noise scanning page 4.2.3. Bottom noise data view The view page of the bottom noise data from the host computer is shown in Figure 4-4, and the bottom noise data from the host computer is viewed in two steps. -
Page 11: Installation And Detection Rangehinstallation
5.1. Ceiling Mount The recommended ceiling mounting height is 2.7~3 m. The maximum motion sensing range of the HLK-LD2420 radar module in the default configuration is a conical three-dimensional space with a bottom radius of 5 m, as shown in Figure 5-2. -
Page 12: Wall Mounted
±45° in the horizontal and pitch directions, as shown in Figure 5-4. The detection range of this reference solution for a wall mounting height of 1.5 m is shown in Figure 5-5. Figure 5-4 HLK-LD2420 radar module detection range diagram (wall mount) 第 10 页 共 14 页... -
Page 13: Detection Range Test
HLK-LD2420 User Manuals Figure 5-5 Sensing range for wall mounting 5.3. Detection range test The test methods for radar triggering and holding detection range are described separately as follows. Trigger range: The target human body approaches the radar from a distance when no one is reported on the radar, and stops advancing when the radar starts to report that someone is present, and the current position is the boundary of the radar trigger detection range;... -
Page 14: Mechanical Size
HLK-LD2420 User Manuals 6. Mechanical size Figure 6-1 shows the mechanical dimensions of the module, all units are in mm mm. the plate thickness of the module is 1.2 mm with a tolerance of ±10%. Figure 6-1 Hardware Mechanical Dimensions 7. -
Page 15: Cautions
HLK-LD2420 User Manuals Precautions for installation Try to ensure that the radar antenna is facing the area to be detected, and the antenna is open and unobstructed around. To ensure that the sensor installation position is solid and stable, the radar itself shaking will affect the detection effect. -
Page 16: Version History
HLK-LD2420 User Manuals is detected within this time period, the timer will be ended and updated immediately, and the target information will be reported. 9. Version History Versions Time Change content V1.0 2023/2/15 Initial draft. V1.1 2023-2-24 Modify some errors...