According to data from China's disease surveillance system, falls have become the number one cause of injury death among people over 65 years old in China. According to estimates, more than 40 million elderly people in China have at least one fall every year, and about half of them occur at home.
Injuries and deaths caused by falls have become the number one killer of the elderly. In particular, once the elderly who live alone fall at home, they cannot be detected and treated, and the danger level rises sharply. As a result, a radar module HLK-LD6002C focusing on the detection of human falls came into being.
2T2R 60G mmWave module
What is the LD6003C radar module?
Product Literature Links:
HLK-LD6002C is a radar sensing module developed based on the ADT6101P chip, which integrates a 57 64GHz RF transceiver system, 2T2R PCB microstrip antenna, 1MB Flash, radar signal processing unit, and ARM Cortex-M3 core.
Based on the FMCW signal processing mechanism and combined with the radar signal processing algorithm, this module realizes the state perception of personnel in a specific place and reports the fall status in time.
Personnel fall detection
Universal UART interface with communication protocol
The HLK-LD6002C radar module supports fall detection within 2 meters by one person, and the module is not affected by temperature, humidity, noise, airflow, dust, light and other environmental influences.
(Example diagram of the output of the module for someone falling).
As shown in the figure above, when the HLK-LD6002C radar module detects that someone has fallen, the 3D view of the serial port tool displays the word "Someone Fall", and the system log window packet shows "Someone has fallen!".“
(Example diagram of the output of the unmanned fall module).
As shown in the figure above, when no fall is detected in the HLK-LD6002C radar module, the system log window packet information of the serial port tool will be displayed"No anomalies were detected"。
90% accuracy
High accuracy and low false alarm rate
Due to the randomness of the human body's fall posture, the scene of falling at home is also more complicated. The position, posture and environment of human fall will affect the accuracy of radar detection, so human fall detection has more stringent requirements for the detection accuracy of radar module.
The HLK-LD6002C radar module is a 2T2R millimeter-wave radar module with a frequency band of 60G. The 60GHz millimeter-wave radar has the advantage of dense point clouds, and the large amount of point cloud data enhances the recognition accuracy and avoids false triggering. The accuracy of more than 90% reduces the occurrence of false alarms to a certain extent, and coupled with the multi-dimensional detection angle, the occurrence of human falls can be more accurately perceived.
Wide detection range
Multi-dimensional and multi-directional detection of human falls
The HLK-LD6002C radar module has a large detection angle and supports horizontal 60° and elevation 60° detection. Wide detection range, multi-directional sensing, high detection accuracy.
HLK-LD6002C supports top mounting height 22-3.0m, the maximum sensing radius is 2m. At the same time, the module supports UART parameter adjustment to meet the needs of different scenarios.
LD6002C Application Analysis
Contactless smart elderly care devices
radar module
On the issue of the radiation of the radar module to the human body
In the actual application scenario of the 60G drop radar module, some users will consider the radiation problem of the radar module. At present, there is no experimental data to show how millimeter wave radiation can have a negative impact on human health.
At the same time, the total amount of radiation that the radar module operates for 24 hours is about the same as the radiation that people receive when they leave their mobile phones close to them for 24 hours.
radar module
Home applications
The 60G millimeter-wave fall detection radar module HLK-LD6002C can detect human falls with high precision, and is suitable for ceiling installation, single scene in small areas of bathroom and toilet. At the same time, the module can also be widely used in homes, nursing homes and other places.
- Product parameters
Operating frequency: 60g (58-62GHz).
Transmit power: 12dBm
Modulation: FMCW
Antenna gain: 4dbi
Detection angle: azimuth 60° Pitch 60
Detection distance: <2m (hanging height 2.)2-3 meters).
Fall recognition accuracy: 90% (typ..))
Maximum number of people tested: 1.
Power supply requirements: 33v(typ.)/>1a
Dimensions: 15x40mm
Operating temperature: -20C +85°C
Ambient temperature: -40°C +85°C
Data format: serial ASCII output.
Encapsulation: Default 20mmx8pin header.
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