CN115191708A

CN115191708A - Intelligent safety helmet

Info

Publication number: CN115191708A
Application number: CN202210967287.XA
Authority: CN
Inventors: 王永; 王树磊; 傅利萍
Original assignee: Changsheng Intelligent Equipment Co ltd
Current assignee: Changsheng Intelligent Equipment Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-10-18

Abstract

The invention relates to a technical improvement of a protective article, in particular to an intelligent safety helmet; whether the head-wearing state is achieved can be accurately judged, and therefore safety reminding is facilitated; the pressure sensor comprises a lining (1), wherein a flexible pressure sensor module (3) is arranged on the inner surface of the lining (1); the flexible pressure sensor module (3) is attached to the inner wall of the lining (1), the flexible pressure sensor module (3) comprises a flexible pressure sensor (31) and a film layer (32), the film layer (32) is located on the front side and the back side of the flexible pressure sensor (31), and the flexible pressure sensor module (3) is located on the forehead of the lining (1); through the design on the inside lining have flexible pressure sensor, combine the human design to the wearing position of safety helmet to whether the realization is wearing the safety helmet in carry out accurate judgement, and make laminating between can be stable and people's forehead position and inside lining through size design.

Description

Intelligent safety helmet

Technical Field

The invention relates to technical improvement of protective articles, in particular to an intelligent safety helmet.

Background

The safety helmet is a head protection device for preventing head damage when an object is hit and falls, is generally made of reinforced plastics, and is mainly applied to places such as engineering, mines and the like; the action mechanism of the safety helmet is as follows: when a heavy object impacts the safety helmet; most impact energy is absorbed by utilizing elastic deformation, plastic deformation and structural damage of the safety helmet, so that the impact force of the head of a wearer is reduced to a safe range, and the head of an operator is protected.

On the construction site, however, part of constructors feel uncomfortable after wearing the safety helmet; in addition, some constructors have low safety awareness, and therefore, the safety helmet is not worn, and therefore, the wearing detection of the safety helmet is required.

At present, some solutions exist in the prior art, for example, CN201720288527.8 discloses a safety helmet system, which comprises a safety helmet body, including a shell and an inner helmet, wherein the inner helmet is arranged inside the shell, a cavity is arranged between the inner helmet and the shell, the front part of the shell is provided with a brim, the upper part of the brim is provided with a lighting lamp, one side of the shell is provided with a wireless communication device, and the rear side of the shell is provided with a plurality of sound guide holes; the eye shield is detachably arranged at the front end of the safety helmet body; the detection device is arranged in the cavity and comprises a detection device, a controller and an alarm, the input end of the controller is connected with the detection device, and the output end of the controller is connected with the alarm.

As disclosed in patent CN201921019807.4, a safety helmet for building construction and a safety helmet detection device are provided, wherein a main controller and a wireless communication module are arranged on the helmet shell, at least one pressure sensor is embedded in the lower edge of the head support, and the pressure sensor is covered by the mesh interlayer; the pressure sensor is in signal connection with the main controller, and the wireless communication module is in control connection with the main controller.

However, in the prior art, the technical improvement of the safety helmet is basically to simply configure a pressure sensor on the safety helmet, but if the safety helmet is held by hand, it is difficult to accurately determine whether the safety helmet is in a wearing state.

Disclosure of Invention

Aiming at the problems mentioned in the background technology, the invention aims to provide an intelligent safety helmet which can accurately judge whether the helmet is in a head-wearing state or not so as to facilitate safety reminding.

The technical purpose of the invention is realized by the following technical scheme: an intelligent safety helmet comprises a lining, wherein a flexible pressure sensor module is arranged on the inner surface of the lining; the flexible pressure sensor module is attached to the inner wall of the lining and comprises a flexible pressure sensor and a thin film layer, the thin film layer is located on the front side and the back side of the flexible pressure sensor, and the flexible pressure sensor module is located at the forehead position of the lining.

Preferably, the width of the flexible pressure sensor module is not more than 15 mm, wherein the width of the flexible pressure sensor module is not more than 10 mm, and each film layer is not more than 2.5 mm.

Preferably, the contact pitch of the flexible pressure sensor module is 7.62 mm.

Preferably, the contact 1 of the flexible pressure sensor is grounded, the contact 2 of the flexible pressure sensor is connected with external voltage through a resistor R1, and the contact 2 is also connected with an external output signal circuit through an operational amplifier.

In summary, the invention mainly has the following beneficial effects: according to the intelligent safety helmet, the flexible pressure sensor is designed on the lining, and the design of a human body on the wearing part of the safety helmet is combined, so that whether the safety helmet is worn or not is accurately judged, the intelligent safety helmet can be stably attached to the forehead part of a person and the lining through size design, normal wearing of the safety helmet is not influenced, the existing safety helmet structure can be modified and upgraded, meanwhile, the intelligent safety helmet can be networked with an Internet of things management system in the current construction site, safety reminding and personnel recording are carried out on constructors who do not wear the safety helmet, the phenomenon that misjudgment is caused by mistouch on the designed part is not prone to occur, and the identification accuracy of whether the safety helmet is worn or not is improved; the design that adopts flexible pressure sensor cooperation thin layer can effectually prevent that devices such as sensor from to the secondary damage of head when the safety helmet receives the impact on the same way.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic diagram of the construction of a module containing a flexible pressure sensor according to the present invention;

FIG. 4 is a schematic diagram of the circuit of the present invention;

fig. 5 is a schematic diagram of the touch key of the present invention.

In the figure: 1. a liner; 2. a safety helmet; 3. a flexible pressure sensor module; 31. a flexible pressure sensor; 32. a thin film layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The intelligent safety helmet comprises a lining 1, wherein the lining 1 can be made of reinforced plastics, and a flexible pressure sensor module 3 is pasted on the inner surface of the lining 1; the flexible pressure sensor module 3 comprises a flexible pressure sensor 31 and film layers 32, the film layers 32 are positioned on the front and back sides of the flexible pressure sensor 31, and the flexible pressure sensor module 3 is positioned on the forehead part of the lining 1; when wearing the safety helmet, people's forehead position can be because of the extrusion to flexible pressure sensor module 3, and makes flexible pressure sensor module output sensing signal, and then makes accurate judgement site operation personnel whether wear the safety helmet, and operations such as simple handheld safety helmet are to flexible pressure sensor 31's extrusion mode, and on the one hand to the handheld comparison difficulty of forehead position, moreover also more difficult to trigger flexible pressure sensor 31's sensing signal.

The width of the flexible pressure sensor module 3 is not more than 15 mm, wherein the width of the flexible pressure sensor 31 is not more than 10 mm, and the width of each film layer 32 is not more than 2.5 mm; the contact pitch of the flexible pressure sensor module 3 is 7.62 mm; such design can be convenient for flexible pressure sensor module 3 and liner 1's subsides apply, and can not cause flexible pressure sensor module 3 to expose from liner 1's edge.

The contact 1 of the flexible pressure sensor is grounded, the contact 2 is connected with external voltage through a resistor R1, and the contact 2 is also connected with an external output signal circuit through an operational amplifier; the circuit connection diagram is shown in fig. 4.

The lower jaw belt of the lining 1 is provided with a detection module for detecting whether fastening is performed or not, and the working principle of the detection module is similar to the triggering mode of a touch key. An induction capacitor is arranged between any two conductive objects, a bonding pad is arranged in the main control PCB, the bonding pad and a metal wire woven on the mandibular belt form a conductor, and the induction capacitor is arranged between the conductor and the ground; when the mandibular belt is contacted with the mandible, an inductive capacitor formed by a human body and the ground is connected in parallel with an inductive capacitor formed by a bonding pad on the PCB and the ground, so that the total capacitance value is increased, and a detection module containing a capacitive touch key chip outputs a switch signal after detecting that the capacitance value is changed.

The scheme can be designed in the mandibular band through the metal wire, and the metal wire is externally connected with the detection sensor module, and the detection sensor module is attached to the human body through the metal wire on the mandibular band, so that a conduction signal is triggered to the detection sensor module, and the pressure sensor module can also be directly arranged on the mandibular band, so that whether the cap band is correctly tightened on the mandible of a person can be judged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An intelligent safety helmet is characterized by comprising a lining (1), wherein a flexible pressure sensor module (3) is arranged on the inner surface of the lining (1); the flexible pressure sensor module (3) is attached to the inner wall of the lining (1), the flexible pressure sensor module (3) comprises a flexible pressure sensor (31) and a thin film layer (32), the thin film layer (32) is located on the front side and the back side of the flexible pressure sensor (31), and the flexible pressure sensor module (3) is located on the forehead portion of the lining (1).

2. Smart headgear according to claim 1, wherein the width of the flexible pressure sensor module (3) does not exceed 15 mm, wherein the flexible pressure sensors (31) do not exceed 10 mm and each film layer (32) does not exceed 2.5 mm.

3. The intelligent safety helmet according to claim 1, characterized in that the contact pitch of the flexible pressure sensor module (3) is 7.62 mm.

4. The intelligent safety helmet of claim 1, wherein the flexible pressure sensing contact 1 is grounded, the flexible pressure sensing contact 2 is connected with an external voltage through a resistor R1, and the contact 2 is further connected with an external output signal circuit through an operational amplifier.