WO2021081873A1 - Casque de sécurité et module intelligent associé - Google Patents

Casque de sécurité et module intelligent associé Download PDF

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Publication number
WO2021081873A1
WO2021081873A1 PCT/CN2019/114639 CN2019114639W WO2021081873A1 WO 2021081873 A1 WO2021081873 A1 WO 2021081873A1 CN 2019114639 W CN2019114639 W CN 2019114639W WO 2021081873 A1 WO2021081873 A1 WO 2021081873A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
helmet
wearing
module
inertial measurement
Prior art date
Application number
PCT/CN2019/114639
Other languages
English (en)
Chinese (zh)
Inventor
凌通
陈超
金溪子
包磊
陈志强
李尚儒
张琴艳
Original Assignee
博世电动工具（中国）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 博世电动工具（中国）有限公司 filed Critical 博世电动工具（中国）有限公司
Priority to PCT/CN2019/114639 priority Critical patent/WO2021081873A1/fr
Priority to CN201980101857.3A priority patent/CN114615904A/zh
Publication of WO2021081873A1 publication Critical patent/WO2021081873A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets

Definitions

  • This application relates to the field of safety helmets, in particular to smart safety helmets.
  • safety helmets are widely worn and used by staff, and they play a huge role in ensuring the safety of staff.
  • Electrical production personnel must enter production, inspection, installation and construction, substation high-voltage areas (rooms), capital construction sites, repair workshops, and other high-altitude operations.
  • Wearing a safety helmet is an important measure to ensure the personal safety of production personnel.
  • the supervision and management of workers wearing safety helmets to enter the production site basically adopts personal awareness and manual inspections, which not only consumes a lot of manpower but may also cause management loopholes; some judgments with the help of capacitive sensors are also beginning to appear on the market.
  • the main problem to be solved by this application is the large error of the existing judgment method of wearing a helmet.
  • the present application provides an intelligent module for a safety helmet, including a control unit, an inertial measurement unit, and a power supply that supports the operation of the intelligent module.
  • the inertial measurement unit is configured to detect the motion parameters of the safety helmet.
  • the control unit is preset with a range of motion parameters of the cap-wearing event, and the smart module determines whether the motion parameters detected by the inertial measurement unit meet the motion parameter range of the cap-wearing event preset by the control unit to confirm the safety helmet The cap action.
  • the present application also provides a safety helmet, which includes a cap body and an intelligent module, and the intelligent module is internally or externally placed in the cap body.
  • the identification and determination of a specific cap-wearing action by the inertial measurement unit improves the accuracy and accuracy of the determination, and its low power consumption feature also extends the battery life of the self-provided battery.
  • Figure 1 shows a schematic diagram of the three-dimensional structure of the safety helmet of the present application
  • Figure 2 shows a schematic diagram of the exploded structure of the smart module of the present application.
  • the present application provides a safety helmet 200 including a cap body 201 and a smart module 100 externally placed on the cap body 201.
  • the cap body 201 has a front brim 2011, and the smart module 100 is externally placed on a rear hat pillow 2012 opposite to the front brim 2011.
  • the smart module 100 can also be externally placed in other parts of the cap body or built into the cap body 201.
  • the smart module 100 is covered by the upper cover 101 and the lower cover 102, and has an adapter seat 103 disposed between the cap body 201 and the lower cover 102, and one side of the adapter seat 103 is connected to the lower cover 102.
  • the matching installation interface is relatively flexible on the other side, and the installation position and curvature of the smart module 100 can be adjusted adaptively by removing materials or the like.
  • the design of the adaptor 103 located between the cap body 201 and the smart module expands the compatibility of the smart module 100 during the upgrading of traditional helmets.
  • the smart module 100 for the helmet includes a control unit 10, an inertial measurement unit 30, and a power source 40 that supports the operation of the smart module 100.
  • the inertial measurement unit 30 is configured to detect the motion parameters of the helmet, and the control unit 10 is preset with the motion parameter range of the cap wearing event, and the smart module 100 determines whether the motion parameter detected by the inertial measurement unit 30 meets the motion parameter range of the cap wearing event preset by the control unit 10 to confirm the helmet The cap action.
  • the inertial measurement unit 30 collects the motion parameters through an acceleration sensor or a combination of an acceleration sensor and a gravity sensor.
  • the control unit 10 also presets motion parameter ranges for cap-off events, falling objects, free-fall events, and long-term stationary events, etc., and activates detection after confirming the cap-wearing action. These events can selectively form an event set according to actual needs, and it is not necessary for each control unit 10 to preset all events.
  • the following is an example to introduce the process of the control unit 10 presetting the motion parameter range of related events.
  • the various events include some typical events, which can be directly obtained according to the change of the acceleration of the inertial measurement unit on the time axis, for example, setting
  • the anti-gravity direction is the Z axis
  • the forward direction of the front brim is the Y axis
  • the right side of the hat body is the X axis.
  • the acceleration of the Z axis after the sensor data fusion is detected after the cap is worn, the acceleration of the Z axis is constant for a period of time.
  • Force acceleration (-g) it is judged as a free fall event; if the acceleration of the XYZ three-axis after the sensor data fusion is detected to be zero for a period of time after the action of wearing a cap, it is judged as a long-term stationary event, etc. ;
  • the above events also include some custom events, which can be defined according to specific scenarios and combined with the measurement results of the inertial measurement unit. For example, by analyzing the wearing action of the helmet user, it is found that the user generally completes the wearing of the helmet in about 3 seconds.
  • One of the typical movement processes is: 1.
  • the range of motion parameters of the aforementioned cap wearing event can be defined as: a fluctuation interval (starting from zero and eventually returning to zero) of the Z-axis acceleration after sensor data fusion does not exceed the preset cap wearing time, and the sensing period
  • the X-axis after data fusion has at least a 100-degree flip.
  • the cap removal action can also be set in a similar way, the main difference is that the acceleration when wearing the cap is positive, and the acceleration when removing the cap is negative.
  • the first fluctuation interval of the Z-axis acceleration after sensor data fusion does not exceed the preset impact time of the falling object, and the acceleration is short
  • the time is rapidly decreased from strong to zero, it is determined that a falling object event has been completed.
  • the smart module further includes a capacitance sensor 20 configured to detect whether the helmet is at a set wearing distance, and the smart module 100 determines the motion parameters of the inertial measurement unit 30 and combines the parameters of the capacitance sensor 20 The test results jointly confirm the wearing action of the helmet.
  • the smart module 100 sets the motion parameter range of the cap-wearing event, and combines the detection results of the capacitance sensor and the inertial measurement unit to jointly confirm the cap-wearing action, optimizing the problem of single detection and confirmation methods and insufficient accuracy of the results, and has more High judgment precision and accuracy.
  • the capacitive sensor 20 passes through or bypasses the helmet body 201 and is placed in the inner cavity of the helmet to get closer to the sensing target and obtain more accurate sensing data.
  • the capacitance sensor 20 sleeps and intermittently activates the detection once after confirming the cap-wearing action.
  • the inertial measurement unit 30 works all the way after the cap-wearing action is confirmed and activates the capacitance sensor 20 to work when other events are detected. While meeting the effect requirements, it also reduces energy consumption.
  • the smart module 100 also includes a communication module 50 that exchanges information with the outside world to realize data collection, monitoring, and processing and utilization.
  • the smart module 100 also includes a positioning module 60 that associates the event with the location of occurrence. With this, the specific location of the incident can be obtained, the rescue can be carried out in time when a special event occurs, and big data analysis based on location can also be performed. For example, the location of frequent falling objects can be reasonably suspected as to whether there are falling objects from high altitude. Potential safety hazards, confirmed on site and improved, etc.
  • the inertial measurement unit and the control unit in the described embodiment are two parallel units, the inertial measurement unit mainly plays the role of sensing and detection, and the control unit mainly plays the role of control calculation, but from the structural point of view
  • the control unit can also be integrated in the inertial measurement unit, and it can even include a first control part built into the inertial measurement unit and a second control part independent of the inertial measurement unit.

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  • Helmets And Other Head Coverings (AREA)

Abstract

La présente invention concerne un module intelligent (100) pour un casque de sécurité (200). Le module intelligent comprend une unité de commande (10), une unité de mesure inertielle (30), et une source d'alimentation (40) prenant en charge le fonctionnement du module intelligent (100), l'unité de mesure inertielle (30) est configurée pour mesurer des paramètres de mouvement du casque de sécurité (200) ; l'unité de commande (10) prédéfinit une plage de paramètres de mouvement d'un événement de port de casque ; et le module intelligent (100) détermine si les paramètres de mouvement mesurés par l'unité de mesure inertielle (30) satisfont la plage de paramètres de mouvement de l'événement de port de casque prédéfini par l'unité de commande (10), de façon à confirmer une action de port de casque du casque de sécurité (200). Au moyen de l'unité de mesure inertielle (30) reconnaissant et déterminant une action de port de casque spécifique, la précision et l'exactitude de la détermination sont améliorées, et la caractéristique de faible consommation d'énergie de celle-ci allonge également la durée de vie de batterie d'une batterie autonome.
PCT/CN2019/114639 2019-10-31 2019-10-31 Casque de sécurité et module intelligent associé WO2021081873A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/114639 WO2021081873A1 (fr) 2019-10-31 2019-10-31 Casque de sécurité et module intelligent associé
CN201980101857.3A CN114615904A (zh) 2019-10-31 2019-10-31 安全帽及其智能模块

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/114639 WO2021081873A1 (fr) 2019-10-31 2019-10-31 Casque de sécurité et module intelligent associé

Publications (1)

Publication Number Publication Date
WO2021081873A1 true WO2021081873A1 (fr) 2021-05-06

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Application Number Title Priority Date Filing Date
PCT/CN2019/114639 WO2021081873A1 (fr) 2019-10-31 2019-10-31 Casque de sécurité et module intelligent associé

Country Status (2)

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CN (1) CN114615904A (fr)
WO (1) WO2021081873A1 (fr)

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US20150109129A1 (en) * 2013-10-18 2015-04-23 Brain Sentry Llc System and method for measuring bodily impact events
CN105786155B (zh) * 2016-02-22 2018-09-14 广东小天才科技有限公司 一种可穿戴设备佩戴状态的判断方法及系统
WO2018018415A1 (fr) * 2016-07-26 2018-02-01 华为技术有限公司 Procédé de détection de l'état de port d'un dispositif portable et dispositif portable
CN207544418U (zh) * 2017-10-12 2018-06-29 天河智慧产业科技（北京）有限公司 一种具有定位功能的安全帽
CN208354707U (zh) * 2018-03-15 2019-01-11 杭州海康威视数字技术股份有限公司 安全帽

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011084709A2 (fr) * 2009-12-17 2011-07-14 Mc10, Inc. Procédés et appareil de détection conforme de force et/ou de changement de mouvement
CN205695944U (zh) * 2016-04-08 2016-11-23 西南交通大学 一种多功能智能骑行头盔
US20180181195A1 (en) * 2016-12-22 2018-06-28 ReScan, Inc. Head-Mounted Sensor System
CN208064589U (zh) * 2018-03-15 2018-11-09 杭州海康威视数字技术股份有限公司 安全帽
CN110269304A (zh) * 2018-03-15 2019-09-24 杭州海康威视数字技术股份有限公司 安全帽、佩戴状态检测方法及装置、计算机可读存储介质
CN209421029U (zh) * 2018-11-20 2019-09-24 成都筑邦科技有限公司 一种内置入智能模块的安全帽
CN110150785A (zh) * 2018-11-29 2019-08-23 深圳来啊体育文化科技有限公司 一种智能头盔在线监控系统及方法

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