Example deliverable
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This page shows a genuine, unedited run of the engine: the plain-English description that went in, the search that came back, and the full patentability report built on it. Nothing is mocked — every publication number links to its source document, so you can check the work.
Invention, as described
A bicycle helmet with an integrated crash-detection module. An accelerometer and gyroscope detect an impact exceeding a threshold; the helmet then flashes its rear LED array in an SOS pattern and sends an emergency alert with GPS coordinates over Bluetooth to a paired phone app, which escalates to an emergency contact if the rider does not cancel within a countdown window. The module is removable and recharges wirelessly.
Bicycle Helmet with Crash-Detection and Emergency Alert Module
No single reference discloses the full claimed combination, so there's no clean knockout. But the pieces are scattered across close prior art: CN212994760U already shows a helmet with rear LEDs, an accelerometer, GPS and a rechargeable supply, US20160066640A1 shows a gyroscope-driven algorithm that contacts emergency responders after a collision, and FR2925874A1 shows an accelerometer-triggered Bluetooth alert signal. An examiner could combine these (plus EP3815067B1's alerting/communication features) to mount a fairly strong obviousness rejection, particularly against the SOS-LED, GPS-Bluetooth-alert, and escalation elements. The countdown-cancellation (e5) and true wireless-recharging-when-detached (e7) features appear to be the most novel, least-anticipated aspects in this set.
Claim elements
- E1helmet with module. A bicycle helmet having an integrated, removable crash-detection module.
- E2impact sensor. An accelerometer and gyroscope configured to detect an impact exceeding a predetermined threshold.
- E3rear LED SOS signal. A rear-mounted LED array that flashes in an SOS pattern in response to a detected impact.
- E4Bluetooth GPS alert. A wireless transmitter that sends an emergency alert with GPS coordinates over Bluetooth to a paired mobile application.
- E5countdown cancellation. A countdown window during which the rider may cancel the emergency alert before further escalation.
- E6emergency contact escalation. Logic that escalates the alert to a designated emergency contact if the countdown expires without cancellation.
- E7wireless recharging. A removable module configured to be wirelessly recharged when detached from the helmet.
Queries executed
- › helmet "crash detection" accelerometer gyroscope impact
- › bicycle helmet "emergency alert" GPS Bluetooth
- › helmet sensor "emergency contact" countdown cancel
- › wearable "fall detection" (helmet OR headgear) notification
- › helmet rear LED "SOS" impact indicator
- › removable crash sensor module wireless charging helmet
- › impact sensor helmet paired smartphone app alert
- › bicycle helmet (accelerometer OR gyroscope) automatic emergency notification
149 candidates considered before rerank
Intelligent helmet
North China University of Science and Technology · 2021-04-20
Discloses a smart helmet with a rear-mounted LED dot-matrix array, an accelerometer, a GPS chip, and a rechargeable power supply built into the main control board.
Reads on E1 · E2 · E3 · E4
Augmented Reality Motorcycle Helmet
Skully Inc · 2016-03-10
Abstract describes a gyroscope providing acceleration output to an algorithm that contacts emergency responders after a collision if the rider is non-responsive, though the claimed invention itself is a rear-camera display system.
Reads on E2 · E6
Activity monitoring system and method for incident detection and response
Saphibeat Technologies Inc · 2021-05-11
Wearable/helmet-integrated activity monitoring device with motion sensors, processor and communication module that analyzes motion patterns for injury/incident detection and response.
Reads on E1 · E2 · E6
Inertia type autonomous device for detecting e.g. breaking state of pedestrian with inline skate, has sensor cooperated with unit that analyses profile of deceleration in time or signature of profile to trigger emission of signals
Individual · 2009-07-03
An accelerometer analyzes a deceleration profile against a threshold/signature to trigger a Bluetooth-type wireless alert signal, closely matching the impact-sensor-to-wireless-alert logic.
Reads on E2 · E4
Protective helmet
Intelligent Cranium Helmets LLC · 2019-08-06
Protective helmet with rear-mounted electronics and an explicitly named 'impact emergency alert system' plus recharging functionality referenced in the abstract.
Reads on E1 · E4 · E6 · E7
Motorcycle accident alert systems and methods of using the same
Individual · 2019-07-04
Motorcycle accident alert apparatus where a motion sensor detecting high-speed motion after a disconnection event triggers a visual/audible indicator to alert others of the rider's location.
Reads on E2 · E3
Improved arboriculture safety system
Husqvarna AB · 2024-02-21
Helmet-mountable safety device with a fall sensor, controller, alerting means and communication interface that emits an alert to other paired devices upon detecting a fall.
Reads on E1 · E2 · E3 · E4
Integrated smart helmet and methods and systems of controlling smart helmet
Individual · 2022-08-09
Smart helmet control-unit PCB wirelessly connected to a computing device that detects crashes and notifies crash information to the paired device over the network.
Reads on E1 · E4
Handheld communication device for monitoring protective headgear
THL Holding Co LLC · 2014-09-30
Handheld device receives impact power data from a wireless sensor on protective headgear and simulates/displays the impact, but does not alert or escalate.
Reads on E2
A helmet wearing encouraging and/or controlling system and a method of encouraging and/or controlling use of a helmet when riding a vehicle
Individual · 2021-01-20
Helmet-mounted motion sensor compares signals to a predefined criterion and issues an alert if not satisfied, but this is a helmet-wearing compliance system, not crash/impact detection.
Reads on E2
Computer-implemented method for training of a machine learning model in vehicle accident event assessment
Autoliv Development AB · 2024-08-14
Concerns training a machine-learning model on two/three-wheeled vehicle sensor data for accident event assessment, only tangentially related to onboard impact sensing.
Reads on E2
An alarm system based on drowsy driving recognization
동국대학교 산학협력단 · 2020-06-19
In-vehicle drowsy-driving detection system using camera, CO2 sensor and wristband heart-rate monitoring; unrelated to bicycle helmets or impact/crash detection.
Patentability report
Individual elements — impact-triggered sensing, GPS-tagged alerts, and rear warning lights — each appear separately across the six references, but no single document combines them with the claimed rider-cancellable countdown before emergency-contact escalation.
| Element | ’760 | ’401 | ’765 | ’741 | ’022 | ’841 |
|---|---|---|---|---|---|---|
| E1helmet with module | Partial Main control board and LED are built into slots in the helmet shell; integration shown but not described as removable. | Partial Battery pack/electronics mounted in the helmet, but not disclosed as a separable crash-detection module. | Partial Device described as 'mounted on or integrated into' a helmet, suggesting a modular attachment, though removability is not detailed. | Not shown Generic accessory for a pedestrian or light vehicle, not a helmet-integrated module. | Partial Processing/impact-sensor system integrated into the protective shell; not described as removable. | Not shown Alert hardware is on a separate article of clothing tethered to a vehicle, not a helmet module. |
| E2impact sensor | Partial Discloses an acceleration sensor but no gyroscope. | Reads on Discloses a gyroscope (head-movement tracking) together with acceleration output feeding a collision-response algorithm. | Partial Sensor set captures 'angular motion' and 'force,' implying gyroscope- and accelerometer-like inputs compared to a threshold library, though not named explicitly. | Partial Explicit accelerometer with a stored deceleration threshold ('seuil'); a second measurement axis is disclosed but not confirmed as a gyroscope. | Partial Impact sensor triggers on 'a specified amount of force,' but accelerometer/gyroscope combination is not specified. | Not shown Uses a generic motion sensor for continued high-speed motion, not an accelerometer/gyroscope impact threshold. |
| E3rear LED SOS signal | Partial Rear LED dot-matrix screen acts as a warning light, but no SOS flash pattern is disclosed. | Not shown Rear-facing element is a camera, not an LED array; visual output is a chin-bar display. | Not shown No LED signaling disclosed; response is a transmitted distress message. | Not shown Signals are described generically (warning/braking/shock signals) without a rear LED array or SOS pattern. | Partial Multi-level LED alert mechanism disclosed, but positioned for the wearer's interior view, not rear-broadcast, and not an SOS pattern. | Partial A single visible light indicator on the clothing article, not a rear LED array or SOS pattern. |
| E4Bluetooth GPS alert | Partial GPS chip present but used for speed monitoring, not for transmitting an emergency alert over Bluetooth to an app. | Not shown No Bluetooth/GPS emergency-alert transmission disclosed in the reviewed text. | Partial Communication module sends a distress message to a remote system, but Bluetooth transport and GPS coordinates to a paired app are not specified. | Partial Expressly discloses a 'Bluetooth type local radio signal' as a warning transmission, but not GPS coordinates or a paired mobile app. | Partial GPS location is transmitted, but to an emergency call center rather than over Bluetooth to a paired mobile app. | Not shown Alert is a local visual/audible signal triggered via a tether, not a Bluetooth/GPS message to an app. |
| E5countdown cancellation | Not shown No countdown or cancellation mechanism disclosed. | Not shown Escalation condition is rider non-responsiveness, not a timed, user-cancellable countdown. | Partial An automatic re-verification step delays the distress message pending resumed activity, functionally adjacent but not a rider-initiated cancel. | Not shown No countdown or cancellation step disclosed. | Not shown Alert is sent directly upon threshold force detection with no disclosed cancellation window. | Not shown No countdown or cancellation mechanism disclosed. |
| E6emergency contact escalation | Not shown No escalation to an emergency contact disclosed. | Partial Contacts 'emergency responders' upon detected non-responsiveness, but not a rider-designated personal contact, and not countdown-triggered. | Partial Sends a distress message to a remote system upon confirmed incident, but recipient is a generic system, not a designated contact. | Not shown References an 'assistance signal' among several outputs without identifying escalation to a designated emergency contact. | Partial Escalates to an emergency call center via the ESAS, not a rider-designated personal contact, and trigger is immediate force detection rather than countdown expiry. | Not shown No designated-contact escalation disclosed. |
| E7wireless recharging | Partial Discloses a rechargeable battery but not wireless charging or a removable module being recharged. | Not shown Batteries are charged by an onboard wind turbine, not by wireless power transfer, and the pack is not disclosed as removable. | Not shown No recharging mechanism disclosed. | Not shown No recharging mechanism disclosed. | Partial Abstract references a rechargeable feature, but the retrieved text is truncated and does not confirm wireless recharging of a removable module. | Not shown No recharging mechanism disclosed. |
Examiner-style discussion
CN212994760U
Discloses a helmet with a main control board embedded in an internal slot housing an accelerometer (加速度传感器) and a GPS chip, plus a rear-mounted LED dot-matrix screen used as a warning indicator. It shows a rechargeable battery. It does not disclose a gyroscope, an SOS flash pattern, Bluetooth transmission to a mobile app, a countdown-cancellation window, emergency-contact escalation, or wireless (inductive) recharging, and the control board is built into the shell rather than configured as a separable, removable module.
US20160066640A1 (Skully)
Discloses an integrated gyroscope (tracking head movement) combined with an acceleration-based algorithm that "will contact emergency responders if the rider is non-responsive after a collision" — the closest analog to combined accelerometer/gyroscope impact sensing feeding an alert routine (e2/e6). It does not disclose a rear LED SOS array (its display is a chin-bar AR projector plus rear camera), GPS/Bluetooth transmission to a paired app, a countdown window, or a removable, wirelessly-rechargeable module; its charging source is a wind turbine, not wireless power transfer.
CN108369765B (Saphibeat)
Discloses a helmet-mountable activity-monitoring device using multiple sensors to capture motion patterns (dynamic, angular, force), compare them to stored parameter libraries, and — after a verification step checking whether normal activity resumes — transmit a distress message to a remote system. This delayed-confirmation logic is the closest functional analog to a hold-before-escalation step (e5/e6), but the delay is an automatic re-sampling check, not a rider-initiated countdown with a manual cancel option. No rear LED, no explicit Bluetooth/GPS content transmitted to a mobile app, and no wireless recharging are disclosed.
FR2925874A1
Discloses an accelerometer-based device that analyzes a deceleration profile against a stored threshold and triggers output signals expressly including a "Bluetooth type local radio signal." This is the strongest single disclosure of Bluetooth alerting tied to accelerometer-threshold detection (e2/e4, partial), but the device is a generic pedestrian/light-vehicle accessory, not a helmet; it lacks a gyroscope, rear LED/SOS output, GPS coordinates, countdown cancellation, designated-contact escalation, and any recharging feature.
US10368602B2 (Intelligent Cranium Helmets)
Discloses a helmet with an impact sensor that, on exceeding "a specified amount of force," triggers an emergency services alert system reporting GPS location, plus a separate multi-level LED alert for proximity warnings (viewed by the wearer, not broadcast rearward). This is the closest match on GPS-tied impact alerting (e2, e4 partial, e6 partial), but escalation runs to an emergency call center rather than a rider-designated personal contact, there is no countdown/cancel step, no rear-facing SOS LED pattern, and no disclosed module recharging.
US20190200684A1
Discloses a wearable article with a visual/audible indicator triggered by tether disconnection plus continued high-speed motion. Its detection mechanism (tether loss) differs from accelerometer/gyroscope impact thresholding, and it lacks GPS, Bluetooth-to-app messaging, countdown cancellation, and wireless recharging.
Obviousness considerations
Each claim element maps to at least one reference: impact-threshold sensing (US20160066640A1, FR2925874A1, US10368602B2), rear LEDs (CN212994760U), Bluetooth signaling (FR2925874A1), GPS-tagged alerts to a response entity (US10368602B2), and delayed/verified escalation (CN108369765B, US20160066640A1). Combining a helmet base (CN212994760U or US10368602B2) with Bluetooth signaling (FR2925874A1) and delayed-verification logic (CN108369765B) would require bridging several distinct technical domains, but none of the references teaches away from such combination, and the individual sub-combinations (sensor+alert, alert+GPS) are already paired in single documents. The rider-controlled countdown-and-cancel step (e5) tied to escalation specifically to a designated personal contact (rather than a call center or generic remote system) is not shown or suggested in any reference reviewed.
What this search did not cover
This search reviewed patent literature only, drawn from the databases available to the search tool, and English abstracts/claims for non-English documents (notably the Chinese and French references) rather than full original-language specifications, so nuances in the full descriptions or drawings may not be captured. It did not cover non-patent literature (product manuals, cycling industry press, crowdfunding pages, or standards documents), unpublished pending applications that may become prior art upon publication, or foreign filings outside the retrieved set. No independent verification of priority dates, family status, or file-history estoppel was performed, and the search was limited to the seven references identified as closest art rather than an exhaustive classification-based search of the full helmet/wearable-safety field.
Real run · 2026-07-11 · unedited engine output; every reference links to its source document.
How to read it
- The matrix is the substance. Each row is one claim element of the invention; each column is one close reference. “Reads on” means the reference discloses that element — a single column of reads-on marks is a novelty problem.
- The narrative is the argument. It discusses novelty and obviousness the way an examiner’s rejection would, grounded in the cited references rather than general impressions.
- The limitations section is not fine print. It states what this search could not see (non-patent literature, unpublished applications). A search product that doesn’t state its limits is asking you to guess them.
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