Unlock Intelligence: Kaadas Leverages ams OSRAM Time-of-Flight Sensor Solutions to Deliver Industry Leading Intelligent E-Locks

News facts:

  • ams OSRAM TMF8801 direct Time-of-Flight (dToF) sensor triggers face recognition system with accurate distance measurement
  • Adaptive to environment with excellent sunlight immunity capability, the ToF sensor enables Kaadas e-Locks to achieve reliable detection in various light environments
  • With optimized algorithms, it provides “intelligent” human presence detection and greatly reduces power consumption


Premstaetten, Austria; Shenzhen, China (Oct 25, 2021) -- ams OSRAM (SIX: AMS), a global leader in optical solutions, partners with leading e-lock provider Kaadas to introduce latest intelligent e-locks. The TMF8801 ToF sensor provides distance information as an input to the facial recognition system.

Kaadas’ series of new e-locks incorporate ams OSRAM’s TMF8801, including K20 and K20 Max. As an entry-level product for smart homes and as a core element of future smart home security systems, the e-lock has become an indispensable component of the smart home ecosystem. Following the early development of smart locks and their introduction to the market, today factors such as performance, safety, multi-functionality and intelligence have become critical attributes for e-lock products.

With an integrated VCSEL infrared emitter, multiple SPAD (single photon avalanche photodiode) light detectors, time-to-digital converter, and on-chip microcontroller for histogram processing, the TMF8801 delivers superior performance. Compared to distance averaging employed with an indirect ToF system, the direct ToF time measurement methodology used in the TMF8801 delivers higher accuracy and true-distance measurements.

The TMF8801 has a sunlight rejection filter which as a result provides excellent sunlight immunity capability with accurate ranging even in full sunlight. Meanwhile, it provides a high dynamic range with a measurement range of 20 mm to 2500 mm, which outperforms its ToF peers. Either indoor or outdoor, TMF8801 recognizes the presence of a person in diverse lighting conditions.

Leveraging TMF8801 high ranging accuracy characteristics, ams OSRAM and Kaadas developed optimized algorithms to prevent the false triggering of the sensor in the e-lock caused by the detection of a person passing by the front of the door.

 “The TMF8801 provides more accurate distance measurements to help Kaadas achieve more reliable, effective and energy efficient e-lock solutions,” said Barry Guo, Marketing Manager at ams OSRAM. “It can be used for user presence detection to automatically wake up or put the system into a low-power sleep mode based on the presence or absence of a user.”

“ams OSRAM TMF8801’s precise ranging and excellent sunlight immunity capability make our e-lock work well in a variety of application scenarios, the hidden optical opening design enable flexibility industrial design and makes more beautiful appearance possible,” said Xian Li, Executive Vice President at Kaadas.

More technical information of TMF8801 can be found at https://ams.com/tmf8801.



Press Contact:
Amy Flécher                                                   
Vice President Corporate                                 
Communications and Marketing
T: +43 664 8816 2121                                    



The TMF8801 ToF sensor from ams OSRAM enables more accurate, effective and power-saving solutions for presence detection and face recognition.
Photo: Kaadas


About Kaadas

Kaadas is specializing in high-end smart locks, which is a full-industry chain company integrating product development, manufacture, sales, installation and after-sales. It is also a national high-tech enterprise headquartered in Shenzhen High-tech Park, China - Tsinghua Information Port. Kaadas has always been adhering to the faith of "innovation, Smart, Quality, Integrity, Craftsmanship" to make smart locks. At present, Kaadas has more than 1,000 employees, tens of thousands of global terminal network, and its sales scale ranks among the top in the world.

Find out more information on: https://www.kaadasgroup.com/


About ams OSRAM

The ams OSRAM Group, with its parent company ams AG (SIX: AMS), is a global leader in optical solutions. By adding intelligence to light and passion to innovation, we enrich people’s lives. This is what we mean by Sensing is Life.

With over 110 years of combined history, our core is defined by imagination, deep engineering expertise and the ability to provide global industrial capacity in sensor and light technologies. We create exciting innovations that enable our customers in the consumer, automotive, healthcare and industrial sectors maintain their competitive edge and drive innovation that meaningfully improves the quality of life in terms of health, safety and convenience, while reducing impact on the environment.

Our around 27,000 employees worldwide focus on innovation across sensing, illumination and visualization to make journeys safer, medical diagnosis more accurate and daily moments in communication a richer experience. Our work creates technology for breakthrough applications, which is reflected in over 15,000 patents granted and applied. Headquartered in Premstaetten/Graz (Austria) with a co-headquarters in Munich (Germany), the group achieved well over USD 5 billion combined revenues in 2020 (pro-forma) and is listed as ams AG on the SIX Swiss Exchange (ISIN: AT0000A18XM4).

Find out more about us on https://ams-osram.com

ams is a registered trademark of ams AG. In addition many of our products and services are registered or filed trademarks of ams OSRAM Group. All other company or product names mentioned herein may be trademarks or registered trademarks of their respective owners. Information provided in this press release is accurate at time of publication and is subject to change without advance notice.

Join ams OSRAM social media channels: >Twitter  >LinkedIn  >Facebook  >YouTube