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Stable detection even in outdoor environments | 60GHz millimeter-wave distance sensor "NJF4070/NJF4071" series
The NJF4070/NJF4071 is a distance sensor that utilizes 60GHz millimeter waves, manufactured by Nisshinbo Microdevices.
It is less susceptible to environmental changes and is suitable for applications requiring stable distance information, such as water level gauges, tank level monitoring, AGV/AMRs, service robots, and safety monitoring of industrial machinery.
Furthermore, since this product has already obtained "Technical Standards Conformity Certification" in Japan, customers are not required to obtain any additional radio wave certifications.
■ Ideal for distance measurement, level measurement, and safety detection.
Features
• Strong against environmental changes
- Non-contact design improves maintainability
This reduces the risk of sensor wear and contamination in applications where it is difficult to touch the target object, such as water surfaces, liquid surfaces, or hazardous areas.
- Easy to use for control that utilizes distance information
By determining the distance to an object, it can be used for control functions such as level management, deceleration, stopping, proximity detection, and obstacle detection.
・Small size and low power consumption
It is also suitable for use in embedded devices and AGVs/AMRs.
Common challenges and main use cases
River water level monitoring and level measurement
In ultrasonic detection, misrecognition may occur due to condensation, water surface disturbances, narrow manholes, scaffolding, or internal structures.
Millimeter-wave level sensors can measure distance without contact, making them suitable for monitoring water levels and liquid levels in sewers, manholes, water tanks, and other similar applications.
• River monitoring
• Manhole monitoring
• Water storage tanks and receiving tanks
• Tank level monitoring
• Monitoring the condition of sewage facilities
Use Case ① Water Level Gauge: "Detecting water levels in rivers and sewers"
| Common challenges |
Managing water levels in rivers and tanks is done manually, which is inefficient. |
|
| NJF4070/4071 resolved |
- Enables non-contact water level measurement, significantly reducing labor costs. |
|
| Common questions |
Are there a lot of false positives? |
|
| Resolving the question |
Equipped with an ambient noise reduction algorithm to prevent false detections. |
Are you looking for sensors for river monitoring applications?
If this applies to you, please feel free to contact us for a consultation.
Robot/AGV/AMR safety detection
Use Case ② Robot / AGV: "Obstacle Detection"
For robots operating in factories, logistics warehouses, and commercial facilities, avoiding contact with people, pallets, carts, and equipment is crucial.
By utilizing distance information from millimeter-wave sensors, applications in safety control such as deceleration, stopping, and proximity detection can be expected.
• AGV/AMR forward obstacle detection
• Approach detection for automated cleaning robots
• Service robot safety area monitoring
• Distance monitoring around industrial machinery
| Common challenges |
Autonomous vehicles (AGVs) in factories and warehouses |
|
| NJF4070/4071 resolved |
-Achieves highly accurate distance measurement. |
|
| Common questions |
Couldn't this be replaced by cameras or LiDAR? |
|
| Resolving the question |
Microwaves ensure stable operation even in adverse weather conditions or dusty environments. |
Are you looking for sensors for "robot/AGV/AMR safety detection" applications?
If this applies to you, please feel free to contact us for a consultation.
Parking and facility monitoring
Use Case 3: Outdoor Parking Lot: "Vehicle Presence Detection"
By utilizing distance measurement to target objects, this technology can also be applied to managing vehicle occupancy in parking lots and monitoring the condition of the area around equipment.
We will emphasize stable detection in outdoor and semi-outdoor environments, leading to proposals for replacing existing ultrasonic and optical sensors.
| Common challenges |
Setting up a vehicle occupancy management system in an outdoor parking lot is complicated. |
|
| NJF4070/4071 resolved |
・ Reliable detection even in rain, fog, and dark places. |
|
| Common questions |
Wouldn't false positives increase outdoors? |
|
| Resolving the question | Unaffected by light or temperature, using an ambient noise reduction algorithm This prevents false positives. |
Are you looking for sensors for "parking lot and facility monitoring" applications?
If this applies to you, please feel free to contact us for a consultation.
Comparison of sensor methods in outdoor environments
Why is "millimeter wave" the optimal technology?
|
item |
Millimeter wave sensor |
Ultrasound |
Optics/ToF |
|
Dark environment |
◎ Strong |
◎ Strong |
△ May be affected by ambient light. |
|
Dust and dirt |
◎ Strong |
△ May be affected |
△ Easily affected |
|
Rain, fog, humidity |
◎ Strong |
△ May be affected |
△ May be affected |
|
condensation environment |
◎ Strong |
△ May be affected |
△ Susceptible to the influence of the lens surface |
|
Temperature change |
◎ No temperature correction required |
△ Temperature compensation is required. |
○ Relatively little impact |
|
Wind effects |
◎ Few |
△ Easy to take |
◎ Few |
|
Non-contact measurement |
○ Possible |
○ Possible |
○ Possible |
|
Outdoor/semi-outdoor |
◎ Easy to apply |
△ Conditions need to be checked. |
△ Conditions need to be checked. |
|
Main Applications |
Water level gauges, river monitoring, tank monitoring, |
Liquid level measurement, distance measurement |
Distance measurement, object detection, optical detection |
*This is a comparison of the characteristics of typical sensor types. Performance may vary depending on the usage environment and product specifications.
Product Specifications
*Face-mounted type with screws at all four corners: This is a highly versatile product that can be attached to circuit boards or screwed directly to the customer's product.
FAQ
[Q] What is a 60GHz millimeter-wave sensor?
[A] The NJF4070/NJF4071 is a distance sensor that uses 60GHz millimeter waves to measure the distance to an object non-contact.
It can be used for water level monitoring, level measurement, AGV safety detection, and more.
[Q] What is the difference between this and an ultrasonic sensor?
[A] Because the NJF4070/NJF4071 utilizes 60GHz millimeter waves, it is less susceptible to temperature changes and wind compared to ultrasonic sensors, enabling stable measurements even in outdoor environments.
Please also refer to the comparison table within this article.
【Q】What uses can it be used for?
[A] Can be used for water level monitoring, tank level monitoring, river monitoring, AGV/AMR safety detection, factory equipment location detection, parking lot monitoring, etc.
[Q] Can it be used outdoors?
[A] The NJF4070/NJF4071 is less susceptible to the effects of rain, dust, and condensation, making it suitable for water level monitoring and level measurement applications in outdoor and semi-outdoor environments.
Macnica provides support from evaluation to implementation.
At Macnica, we provide comprehensive support to customers considering distance measurement applications, from sensor selection and evaluation kits to PoC (Proof of Concept) and technical consultations.
We offer optimal product configurations tailored to your specific needs, including water level gauges, robot safety detection systems, AGVs/AMRs, and more. Please feel free to contact us. please.
Evaluation kit and GUI tool for evaluating NJF4071 (distance measurement)
■ Evaluation Kit Contents |
- NJF4071 main unit |
|
・One cable with connector |
|
|
You can download it from the manufacturer's website (Nisshinbo Microdevices Corporation) below. https://www.nisshinbo-microdevices.co.jp/ja/products/sensor-modules/spec/?product=njf4071 |
|
|
・Sample software |
■ GUI Tools |
• You can download it from the manufacturer's website (Nisshinbo Microdevices Co., Ltd.) below.
|
Technical data (download)
Clicking will allow you to download from the manufacturer's website (Nisshinbo Microdevices Corporation). (NJF4070 | NJF4071)
Inquiry / Consultation
For questions about this product, evaluation kits, technical consultations, quotations, etc., please contact us using the information below.
Manufacturer information top
If you would like to return to the Nisshinbo Micro Devicesmanufacturer information top page, please click below.