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Guardian Cassis Bicyclisticus by Leijing Zhou
Guardian Cassis Bicyclisticus by Leijing Zhou
Guardian Cassis Bicyclisticus by Leijing Zhou
Guardian Cassis Bicyclisticus by Leijing Zhou
Guardian Cassis Bicyclisticus by Leijing Zhou

Aes Instrumentum Protectivum · 2025

Guardian Cassis Bicyclisticus

by Leijing Zhou

  • Praemium A' Design Award Aeneum 2025 in Instrumentum Protectivum
  • CLIENT: Zhejiang University
  • Estimated Number of Design Views: 33,394
  • Verification code BCB4E48CE0 · Verify this award
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About Guardian Cassis Bicyclisticus

Custos est cassis tutelae destinatus cyclistis surdis et mutis. Cassis monitiones sonoras vibrationibus et ostento capiti apposito permutat. Sensores et machinae photographicae vehicula a tergo appropinquantia deprehendunt, et cassis leniter vibrat ut sessorem moneat. Moduli diodum lucem emittentium micant ad directiones flexus indicandas. Post casum, vocatio auxilii automatice fit, et levi ictu digiti nuntius praeparatus mittitur. Tegumentum ex acrylonitrilo butadieno styreno levi factum est, cum lino spumeo memoriali et claviculo ad aptum capiti convenientiam praebendam.

About the Praemium A' Design Award Aeneum

Guardian Cassis Bicyclisticus victor est Praemii A' Design Award Aeneum, honoris multum aestimati formis egregiis, creandi ingenio, sollertia et acumine insignibus dati. Victores Aenei opera perita et mire creandi sunt, quae experientiam, imaginationem et solertiam auctorum suorum confirmant. Exspectatur Guardian Cassis Bicyclisticus rem multum aestimatam, admiratam et carissimam, notabiliter professionalem et novam fore. Haec forma Aeneo victa optimas consuetudines artis, scientiae, formandi rationis et technologiae amplectitur et in cura minutiarum excellit. Guardian Cassis Bicyclisticus necessitates egregie explet, cupiditates tangit, sensus capit et curiositatem allicit.

Press Kit

Unique Properties
Due to their inability to communicate effectively through speech and sound, deaf-mute individuals may face significant dangers when traveling, lacking essential information about road conditions. The deaf-mute safety helmet robustly protects cyclists with smart technology, sensors, and an advanced HUD system. It alerts them to traffic conditions through precise vibrations, sustaining alertness. The helmet significantly bolsters safety while cycling, lowering accident risks.
Dimensions & Packaging
250 (mm) x 200 (mm) x 200 (mm)
Tags
Inclusive Design, Deaf-Mute Safety, Smart Helmet, Assistive Technology, Urban Mobility, Vibration Feedback, Road Safety
Production Technology
The design was developed through user-centered research, focusing on the travel challenges faced by deaf-mute individuals. Prototyping involved computer-aided design modeling and iterative testing with simulated vibration and head-up display feedback. The helmet is envisioned using lightweight acrylonitrile butadiene styrene for the shell, memory foam for comfort, and integrates sensors, cameras, and light-emitting diode modules to ensure safety and usability.
Design Challenge
The hardest part was designing a system that replaces sound-based warnings with intuitive, non-auditory feedback. Socially, deaf-mute cyclists are often overlooked, with few products considering their needs. Technologically, integrating sensors, HUD, and vibration modules into a compact, wearable form was complex. Limited reference cases and data made user research crucial. Overcoming these challenges required empathy, iteration, and creative use of existing tech in new ways.
Research
Amid honks and sirens, sound protects most but leaves deaf-mute cyclists exposed. We conducted user-centered design research aiming to improve their travel safety. Through interviews, observations, and journey mapping, we gathered insights from deaf-mute individuals and cyclists. Results revealed key dangers like missed warnings and lack of emergency help. This led to features like vibration alerts and auto-alarm, promoting inclusive design and raising awareness in both society and mobility products.
Inspiration
This project was inspired by the overlooked risks faced by deaf-mute cyclists in sound-dominated traffic environments. Motivated by a desire to create inclusive safety solutions, I explored how smart technology could bridge the sensory gap. Grounded in user-centered research and assistive tech studies, the design aims to challenge auditory bias in urban mobility and offer a more equitable, responsive riding experience for all.
Project Duration
The project started in June 2023 in China and finished in October 2024 in China.
Operation Flow
The helmet is easy to use—just wear it and ride as usual. It gently vibrates to warn you if something gets too close from behind, and flashes lights to keep you alert. When it's time to turn, it shows directions and flashes the right signal. If an accident happens, it automatically calls for help. With just a light tap, you can also send a preset message. It fits snugly with a twist of the knob, making cycling safer and more reassuring.

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