Features
Equipped with a single-chip smart millimeter wave sensor SoC and smart algorithm firmware
·Ultra-small module size: 18mm x 15mm
·FR24Y4MF-1815S(A) loads the default human body sensing configuration, plug and play
·24GHz ISM frequency band, can pass FCC and CE spectrum regulations certification
·3.3V power supply, support 3.0V~3.6V wide voltage range
·Average current 42mA during continuous operation
·Detection target is moving, micro-movement or standing human body
·Real-time reporting of detection results
·Provide visualization tools to support the configuration of detection distance range, sensitivity setting between partitions and result reporting time
·Support the division of the sensing range, so as to completely shield any interference outside the interval
· Sensing at a close distance of 0.2 meters, no detection blind spots
· Motion human body induction 20 meters long distance
·Large detection angle, coverage of +-70 degrees
Support multiple installation methods such as ceiling and wall
System specification
FR24Y4MF-1815S(A) is a reference solution for intelligent and correct human sensing sensors based on millimeter wave sensor chips. The sensor uses FMCW frequency modulation continuous wave, combined with radar signal processing, and built-in intelligent human body induction algorithm to detect human targets in the set space and update the detection results in real time. Using the Fei Rui intelligent millimeter wave sensor reference solution, users can quickly develop their own correct human body sensing products.
The hardware part of FR24Y4MF-1815S(A) is mainly composed of fully integrated Fei Rui smart millimeter wave sensor SoC, 24G one-transmit and one-receive antenna and main control MCU; the software part is combined with Fei Rui's firmware and visual configuration tools to achieve flexibility Configure the human body sensing function of sensing distance, sensitivity and reporting time.
Specifications
| parameter | | | Small value | | | typical | | | Large value | | | Company | | | condition | |
Fr24y4mf-1815s (a) hardware specification |
Support frequency band | 24 | | 25 | GHz | |
Support large sweep bandwidth | | | 1 | GHz | |
Equivalent omnidirectional radiation power | | 15 | | dBm | |
Supply voltage | 3.0 | 3.3 | 3.6 | V | |
Half power beamwidth pitch | | - 45 ~ +45 | | ◦ | |
Half power beamwidth azimuth | | - 45 ~ +45 | | ◦ | |
size | | 18 x 15 | | mm x mm | |
ambient temperature | -40 | | 85 | ℃ | |
Fr24y4mf-1815s (a) system performance |
Range detection range | 0.2 | | 20 | m | Human target |
Range resolution | 0.7 | | | m | Human target |
Operating frequency band | 24 | | 24.25 | GHz | |
Sweep bandwidth | | | 250 | MHz | |
Average operating current | | 42 | | mA | | | |
Installation conditions
Confirm installation clearance
Before installing the radar, you need to test the installation gap between the antenna and the housing. When the housing is too close to the antenna, the radar reception will be saturated. However, the installation gap between different materials, different thicknesses, and different shapes of the housing and the radar antenna will be different.
Installation environment requirements
This product needs to be operated in a suitable installation environment. If it is operated in the following environment, the test results will be disturbed:
·There are non-human objects that move continuously in the sensing area, such as animals, continuously swinging curtains, large green plants facing the air outlet, etc.;
·There is a large area of strong reflectors in the sensing area, and the strong reflectors will interfere with the radar antenna.
Precautions during installation
·When installing, make sure that the installation position of the sensor is firm and stable. The shaking of the radar itself will have a great influence on the signal processing.
·When installing, make sure that there is no object movement or vibration on the back of the radar. Due to the penetrating nature of radar radio frequency waves, the signal on the back of the antenna will also pass through the radar board. If there is an object moving on the back, it will also be collected by the antenna, which will affect the judgment effect. A radome or backplane can be used to reduce the impact of objects on the back of the radar.
·When installing, try to ensure that the radar antenna is facing the area to be detected, and the antenna is open and unobstructed.
