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  3. パル技研
  4. Beam reflection detection method and beam interruption detection method, two detection methods of microwaves.
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  • Jul 03, 2020
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Jul 03, 2020

Beam reflection detection method and beam interruption detection method, two detection methods of microwaves.

パル技研 パル技研
At Pal Giken, we are developing various sensors that use "microwaves," and this time we will explain how they detect intrusions. ◆◆ Two Detection Methods ◆◆ Our microwave sensors support two detection methods. 1) Beam Reflection Detection Method A single sensor is installed, and the transmitted wave output from it defines the detection area. The detection range depends on the antenna angle of the sensor, but the sensor alone covers a wide distance. When a target intercepts the transmitted wave from the sensor, it is received as a reflected wave and detected as an "intrusion." 2) Beam Interruption Method This method configures the detection area by positioning the sensor and reflector opposite each other. The transmitted wave output from the sensor hits the reflector and is received as a reflected wave. Additionally, there are products that configure the detection area using a transmitter and receiver. In this case, the transmitted wave output from the transmitter is received by the receiver. In both cases, the levels that serve as the basis for transmission and reception are monitored, and if the radio wave is interrupted by an intrusion, causing the level to drop below a threshold, it is detected as an "intrusion."
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Microwave Intrusion Detection Sensor 'BSS01/BSM02'

Easy to adjust and add sensors! A microwave intrusion detection sensor that is strong against natural environments and capable of distance measurement.

The "BSS01/BSM02" is a microwave intrusion detection sensor that is highly resilient to natural environments and capable of distance measurement. Unlike conventional Doppler and infrared interruption methods, it adopts the FMCW method to detect intrusions based on distance and reflection levels, which reduces false alarms compared to traditional methods. It complies with the technical standards certification (ARIB STD-T73) for 24GHz band specific low-power radio stations, eliminating the need for cumbersome radio station license applications during use. Additionally, it can be used both indoors and outdoors in the country. 【Features】 ■ Strong against natural environments ■ Capable of long-distance monitoring ■ Covers a wide detection area ■ Capable of detecting intrusion locations ■ Easy installation adjustments and sensor expansions ■ Reduces false alarms *For more details, please refer to the PDF materials or feel free to contact us.

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Microwave Proximity Sensor 'BSS300/BSS301'

Separating the surrounding environment and detection area with distance information to reduce false alarms! A short-range intrusion detection sensor that can measure distance.

The "BSS300/BSS301" is a sensor that detects intruders using radio waves in the 24GHz band. In pole monitoring, it is possible to supplement the blind spots created at the feet of various intrusion detection sensors from above towards the ground. Microwaves are less affected by rain, snow, fog, backlighting, and other conditions, allowing for more stable monitoring even in environments where infrared sensors, image sensors, electric field sensors, and laser sensors tend to generate false alarms. 【Features】 ■ Strong against weather conditions such as rain, wind, snow, and fog, ensuring high reliability ■ Not affected by temperature changes caused by swaying vegetation ■ Can be installed along walls, on top of fences, and in various locations ■ Not influenced by surrounding reflections *For more details, please refer to the PDF document or feel free to contact us.

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Microwave Smart Sensor "BSS20"

Counter-terrorism measures for important infrastructure such as power plants and airports! 3D radio wave barriers reliably catch terrorists.

The "BSS20" is an intrusion monitoring sensor that uses 24GHz band radio waves. It detects intruders by blocking a detection area composed of multiple opposing transmitters and receivers. It is robust against outdoor natural environments, easy to adjust during installation, and can be utilized as a counter-terrorism measure for critical infrastructure such as power plants and airports. 【Features】 ■ Strong against weather conditions such as rain, wind, snow, and fog, ensuring high reliability ■ No need for precise optical axis alignment like infrared sensors ■ Can be installed along walls, on top of fences, and in various locations ■ Forms a 3D radio wave barrier through multi-stage installation of up to 4 layers *For more details, please refer to the PDF materials or feel free to contact us.

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Microwave Multi-Span Sensor 'BSS200-P1'

Security measures for factories and equipment! Catering to various needs from easy installation to permanent setups.

The "BSS200-P1" is a sensor that detects intruders using 24GHz band radio waves. When an intruder obstructs the detection area, which is composed of a pair of transmitters and receivers, an alarm is triggered. There is no need for precise optical axis alignment like with infrared sensors, making installation adjustments easy during setup. It caters to various needs, from security measures in factories and facilities to simple installations and permanent setups. 【Features】 - Strong against weather conditions such as rain, wind, snow, and fog, ensuring high reliability - No need for precise optical axis alignment like with infrared sensors - Can be installed in various locations, such as along walls or on top of fences - Achieves easy installation through miniaturization of the sensor and simplification of the interface *For more details, please refer to the PDF materials or feel free to contact us.

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Microwave Safety Monitoring Sensor 'BFS01/BFS01-P'

Simultaneously measures speed and distance! A safety monitoring sensor that utilizes highly weather-resistant microwaves.

The "BFS01/BFS01-P" is a microwave safety monitoring sensor that utilizes radio waves, making it resilient to weather conditions such as rain, wind, snow, and fog. It can perform reliable measurements with minimal false detection even in harsh outdoor environments. It complies with the technical standards for 24GHz band specific low power radio stations (ARIB STD-T73), and there is no need for a cumbersome radio station license application when using it. Additionally, it can be used both indoors and outdoors within the country. 【Features】 ■ Capable of measuring speed and distance simultaneously ■ Dustproof and waterproof with an IP67 rating, allowing for direct outdoor installation ■ Compatible with system requirements through contact output and Ethernet  (* Speed and distance information is supported only via Ethernet) * For more details, please refer to the PDF materials or feel free to contact us.

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Related catalog(5)

Microwave Proximity Sensor BSS300/BSS301

Microwave Proximity Sensor BSS300/BSS301

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Microwave intrusion detection sensor 'BSS01/BSM02'

Microwave intrusion detection sensor 'BSS01/BSM02'

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Microwave Safety Monitoring Sensor 'BFS01/BFS01-P'

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Microwave Smart Sensor "BSS20"

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Microwave Multi-Span Sensor 'BSS200-P1'

Microwave Multi-Span Sensor 'BSS200-P1'

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[Please introduce this to the management and general affairs department] Update on the introduction case of expense reimbursement and attendance management system! We want to eliminate paper-based reimbursement and application processes. The checking work that used to take three days can now be completed in one day.

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An article has been published regarding the case study of the introduction of the expense reimbursement system "Rakuraku Seisan" and the attendance management system "KING OF TIME" at Racam Co., Ltd. ~ In the case of Racam ~ Before the introduction of "Rakuraku Seisan," applications were paper-based. One person was responsible for checking the contents for about 100 individuals using a calculator. Since actually using the system, various tasks related to determining who to pay and how much have been reduced, and it has become possible to import the crucial journal entries. Most importantly, the elimination of the need to research transportation costs one by one has been a significant improvement. The successful implementation of the attendance management system was made possible by the generous support provided by iBP. [Case Overview (Partial)] ■ Challenges Before Implementation - Wanted to eliminate paper-based reimbursement and application processes ■ Key Points of Implementation - High recognition of Rakuraku Seisan - With iBP, both expense reimbursement and attendance management can be handled together *For more details, please refer to the related links or feel free to contact us.

Jul 24, 2026

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Case Study 003: Verbalizing the "somewhat inconvenient" issues faced by HR and General Affairs. A case of organizing challenges and proposals. Client in the home care industry with approximately 700 employees.

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"Somewhat inconvenient" can quickly transform into "cost" and "risk" due to an increase in the number of employees or an expansion of business scope. What we are introducing this time is the process of a home care industry company with around 700 employees verbalizing their frustrations regarding payroll operations and considering the optimal system configuration. When we verbalize "somewhat inconvenient"... 1) The support quality of the payroll system being used is poor, causing significant stress. 2) The number of employees has been on the rise in recent years, raising concerns about running costs due to the pay-per-use system. 3) Macros are being used for data integration with a separate system. 4) We want to make backend processes like payroll payment reports easier. Information from iBP What is important here is to decide how to handle the multiple issues that have arisen, which is the "prioritization of tasks." You can read more without needing to input personal information. Please visit the iBusiness Partners column page! https://ibp-column.sfsite.me/36302

Jul 23, 2026

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When the sensor detects a car, it notifies pedestrians of the car's departure with the light of a rotating beacon!

Perfect for entrances and exits of parking lots and stores! Notify pedestrians of vehicle departures with the light from the rotating lamp! Here is a proposal for a departure warning sensor!

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  • CATALOG

[To the owners of parking lots and parking lot construction companies] "I am worried about the possibility of colliding with pedestrians when exiting the parking lot..." Among vehicle entrances to parking lots, stores, residences, and factories, those particularly facing sidewalks or roadways are expected to pose risks of dangerous incidents such as pedestrian collisions and vehicle-to-vehicle accidents. To alleviate such concerns, Hotron proposes a [Vehicle Exit Warning Sensor] that detects vehicle departures at various sites and alerts the surrounding area with LED lights and buzzers. The system consists of a simple configuration of "Sensor" + "Controller" + "Switching Power Supply (24V)" + "LED Rotating Light." *When using the exit warning system, we kindly ask that you arrange for the switching power supply (24V), LED rotating light, control panel, circuit breaker, etc. Since it can be retrofitted, it can also be used for existing parking lot entrances. [Contents Included] ○ Exit Warning System Configuration ○ Comparison Table of Exit Warning Sensors ○ Four Modes ○ Wide Range of Applications ○ Customer Feedback ○ Appearance Diagram / Specifications ◎ For more details, please contact us or download the catalog.

Jul 23, 2026

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[Free Catalog Distribution] Measures for "Near Misses" in Nursing and Care Settings. Prevent tripping and disconnection with codes! Wireless Series Bed Exit Sensors Linked to Nurse Call Systems.

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  • CATALOG

In facilities operating nurse call systems, we have made bed exit sensors wireless, allowing them to notify in conjunction with the nurse call system. By simply connecting the mat sensor "Foldable Thin Matt-kun," the body movement call "Ugo-kun," and the wheelchair body movement call "Ayumi-chan" to the transmitter HB-RS, you can make the bed exit sensor wireless. The infrared sensor "Just Place Pole-kun" has the transmitter HB-RS built-in. This helps prevent accidents caused by falls, slips, or wandering, contributing to the efficiency of medical operations. 【Features】 ○ Wireless conversion by simply connecting existing sensors to the transmitter HB-WSK. ○ Bed exit sensors notify wirelessly in conjunction with the nurse call system. ○ Up to 5 transmitters can be registered with one receiver. ○ The communication distance between the transmitter and receiver is approximately 10 meters. ◎ For more details, please contact us or download the catalog.

Jul 23, 2026

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We have released the materials for the cloud management tool "Loglass"!

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We have released an introduction document for our cloud management system "Loglass." This document clearly presents the features and usage images of "Loglass," which streamlines management tasks such as budget formulation, performance management, forecast updates, and management accounting. Loglass centralizes data scattered across various systems and spreadsheets, reducing the effort required for collection, aggregation, and analysis, thereby supporting quicker and more accurate management decisions. Additionally, it helps address challenges such as the personalization of management tasks and increased workload through automation of data aggregation, history management, and real-time analysis functions. The document also includes actual implementation examples and the effects of implementation, showcasing results such as reduced workload, enhanced analysis capabilities, and improved decision-making speed. Companies considering promoting DX in management or reviewing operations centered around Excel and spreadsheets are encouraged to take a look.

Jul 22, 2026

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