A tunnel safety induction intelligent helmet, induction system and induction method

Abstract

The present invention discloses a tunnel safety induction intelligent helmet, an induction system and an induction method, including: a helmet body, a laser emitter, and an indicating device. The indicating device includes a housing, a convex lens and a first reflector. A through installation cavity is provided on the housing. The convex lens is installed at one end of the installation cavity, and the first reflector is installed at the other end of the installation cavity, and the mirror surface of the first reflector is located at the focal point of the convex lens. The laser emitter emits laser light, and the laser light emitted by the laser emitter converges on the convex lens and is then reflected by the first reflector and a second reflector to the convex lens of the next indicating device, forming an induction route on the side of the tunnel.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel guidance, and particularly to a tunnel safety guidance intelligent helmet, a guidance system and a guidance method. Background Art

[0002] With the rapid development of highway construction in China, there are more and more highway tunnels, and the number of fire incidents in tunnels is gradually increasing. The environment in the tunnel is relatively enclosed. Once a fire breaks out, if it cannot be extinguished in time, the fire will spread rapidly along the tunnel, and it takes a certain amount of time for firefighters to arrive at the fire scene. When a fire breaks out in the tunnel, most of the existing escape indication systems rely on the mains power system. Once the power system is damaged by the fire, they cannot work properly. There are only some emergency indicator lights relying on emergency power supplies, which cannot provide good escape indication.

[0003] For example, a tunnel guidance system and a guidance method with the application number 2018116057582 includes a portal lamp arranged at the tunnel entrance, a plurality of induction lamps arranged on the tunnel wall, a plurality of vehicle detectors arranged between the induction lamps, and a control box. This invention can guide vehicles inside and outside the tunnel, help drivers choose a more efficient and safe driving mode, and reduce the probability of accidents; once an accident occurs in the tunnel and the power system is damaged, induction indication cannot be carried out. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a tunnel safety guidance intelligent helmet, a guidance system and a guidance method. A laser emitter emits laser, and the laser emitted by the laser emitter is converged by a convex lens and then reflected by a first reflector to the convex lens of the next indicating device, forming a guidance route on the side of the tunnel, which can prevent the power system from being unusable during a fire and thus unable to normally guide pedestrians.

[0005] The present invention adopts the following technical solutions:

[0006] A tunnel safety guidance intelligent helmet includes: a helmet body with an installation groove at the upper end; a laser emitter arranged in the installation groove, including: a first laser emitter rotatably arranged on the surface of the installation groove; a second laser emitter located above the first laser emitter and rotatably arranged on the surface of the installation groove; the intelligent helmet has a first state and a second state; in the first state, the first laser emitter and the second laser emitter emit laser forward for distance measurement; in the second state, the first laser emitter and the second laser emitter emit laser towards both sides respectively.

[0007] A tunnel safety induction system includes a tunnel safety induction intelligent helmet and a number of indicating devices evenly arranged on the ground; the indicating device includes a housing, a convex lens and a first reflector, a through installation cavity is provided on the housing, the convex lens is installed at one end of the installation cavity, the first reflector is installed at the other end of the installation cavity, and the mirror surface of the first reflector is located at the focal point of the convex lens.

[0008] Preferably, the first reflector is arranged towards the convex lens of the next indicating device, and the laser emitted by the first laser emitter or the second laser emitter converges on the convex lens and is reflected by the first reflector to the convex lens of the next indicating device, forming an induction route.

[0009] Preferably, the first reflector includes a first reflector body and a rotating groove on the back side of the first reflector body, a spherical positioning member is provided on the housing, and the spherical positioning member is embedded in the rotating groove and is rotationally matched with the first reflector body.

[0010] Preferably, a light sensor is provided on the mirror surface of the first reflector, and the light sensor is communicatively connected to the main controller.

[0011] Preferably, a number of reflecting devices are further provided on the tunnel inner wall, the reflecting device includes a frame and a second reflector provided on the frame, the second reflector is arranged towards the convex lens of the next indicating device; the first reflector is arranged towards the second reflector of the adjacent reflecting device, and the laser emitted by the first laser emitter or the second laser emitter converges on the convex lens and is reflected by the first reflector and the second reflector to the convex lens of the next indicating device, forming a broken line induction route.

[0012] Preferably, a number of indicating devices are provided on both sides of the tunnel. In the second state, the laser emitted by the first laser emitter and the second laser emitter converges on the convex lens and is reflected by the first reflector and the second reflector to the convex lens of the next indicating device, forming induction routes on both sides of the tunnel.

[0013] A tunnel safety induction method uses the tunnel safety induction system for induction, including: S100: Adjust the laser emitter so that it faces the convex lens of the closest indicating device and emits laser; S200: The laser converges on the convex lens and is reflected by the first reflector to the convex lens of the next indicating device, forming an induction route; S300: The main controller counts the number of laser reflections to obtain the approximate distance between the current position and the tunnel exit and provides an induction plan.

[0014] Preferably, in S300, the main controller counts the number of times the light sensor detects the laser as the number of laser reflections.

[0015] Preferably, in S200, the laser emitted by the laser emitter is converged by the convex lens and then reflected by the first reflector and the second reflector to the convex lens of the next indicating device, forming a broken-line induction route.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The present invention provides a tunnel safety induction intelligent helmet, an induction system and an induction method. The laser emitter emits laser, and the laser emitted by the laser emitter is converged by the convex lens and then reflected by the first reflector to the convex lens of the next indicating device, forming an induction route on the side of the tunnel, which can prevent the inability to guide pedestrians normally due to the inoperability of the power system during a fire.

[0018] 2. The safety induction intelligent helmet of the present invention can measure the distance from the first laser emitter and the second laser emitter to the road surface ahead to judge the terrain ahead, facilitating the perception of the road surface conditions ahead during escape.

[0019] 3. In the present invention, the first reflector is arranged facing the second reflector of the adjacent reflecting device, and the laser emitted by the first laser emitter or the second laser emitter is converged by the convex lens and then reflected by the first reflector and the second reflector to the convex lens of the next indicating device, forming a broken-line induction route, which can avoid the situation where the laser cannot be reflected due to the existence of obstacles between two adjacent indicating devices. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the intelligent helmet.

[0021] Figure 2 It is a schematic structural diagram of the indicating device.

[0022] Figure 3 It is a schematic structural diagram of the indicating device from another perspective.

[0023] Figure 4 It is a schematic structural diagram of the safety induction system.

[0024] Figure 5 It is a schematic structural diagram of the reflecting device.

[0025] Figure 6 It is a schematic structural diagram of another embodiment of the safety induction system.

[0026] Figure 7 It is a schematic structural diagram of another embodiment of the indicating device.

[0027] Figure 8 It is a schematic structural diagram of yet another embodiment of the indicating device.

[0028] In the figure, there are helmet body 1, mounting groove 11, laser emitter 2, first laser emitter 21, second laser emitter 22, indicating device 3, housing 31, focusing collimator 32, first reflector 33, first reflector body 331, rotating groove 332, spherical positioning member 34, reflecting device 4, frame 41, and second reflector 42. Detailed implementation

[0029] To facilitate understanding of the technical solution of the present invention, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments.

[0030] Embodiment 1

[0031] As Figure 1-4 shown, a tunnel safety induction intelligent helmet includes: a helmet body 1 and a laser emitter 2.

[0032] The helmet body 1 is provided with a mounting groove 11 at the upper end; since existing safety helmets are provided with lighting devices such as LED lights at the top, it is a conventional structure to have a mounting groove in the middle of the top of the helmet body. For example, a safety helmet structure disclosed in CN204969644U.

[0033] The laser emitter 2 is arranged in the mounting groove 11 and includes: a first laser emitter 21 rotatably arranged on the surface of the mounting groove 11; a second laser emitter 22 located above the first laser emitter 21 and rotatably arranged on the surface of the mounting groove 11. Existing laser emitters, namely laser modules, are composed of laser tubes and laser head modules. According to the length of the tunnel, a long-distance laser module with an ultra-small divergence angle can be selected, such as a VCSEL laser. Since the safety helmet itself usually has a lighting LED light, the laser emitter 2 device itself can be integrated with an LED light. For example, a lighting device disclosed in CN113834038A integrates a first laser and a second laser, as well as an LED device on a tubular body.

[0034] The intelligent helmet has a first state and a second state; in the first state, the first laser emitter 21 and the second laser emitter 22 emit laser forward for ranging; the first laser emitter 21 and the second laser emitter 22 are laser rangefinders. Two laser rangefinders arranged up and down can measure the distance between the front road surface and itself. Based on this distance, it can be judged whether there are obstacles or undulations on the front road surface. Because the distance between the first laser emitter 21 and the second laser emitter 22 is relatively small, the distances from the road surface to the two are nearly equal. If the difference between the two is large, it indicates the existence of obstacles or undulations.

[0035] In the second state, the first laser emitter 21 and the second laser emitter 22 emit lasers towards both sides respectively. In this embodiment, the first laser emitter 21 emits laser towards the right, and the second laser emitter 22 emits laser towards the left.

[0036] A tunnel safety induction system includes a tunnel safety induction intelligent helmet and also includes a plurality of indicating devices 3 evenly arranged on the ground; the indicating device 3 includes a housing 31, a focusing collimator 32 and a first reflector 33. The housing 31 is provided with a through installation cavity. The focusing collimator 32 is installed at one end of the installation cavity, and the first reflector 33 is installed at the other end of the installation cavity, and the mirror surface of the first reflector 33 is located at the focus of the focusing collimator 32.

[0037] According to the characteristic of a convex lens to converge light, the present invention converges light onto the first reflector 33 at the focus; due to different standing positions of people in the tunnel, the angles at which the intelligent helmet emits lasers are different, and a convex lens can be used to converge lasers at different angles onto the first reflector 33 at the focus for reflection.

[0038] As Figure 4 shown, as an implementation manner, the first reflector 33 is arranged towards the focusing collimator 32 of the next indicating device 3. The laser emitted by the first laser emitter 21 or the second laser emitter 22 converges on the focusing collimator 32 and is reflected by the first reflector 33 to the focusing collimator 32 of the next indicating device 3 until reaching the exit, forming an induction route; once an accident occurs, such as a fire or a car accident, people in the tunnel can escape according to this route. In order to make the light transmit farther, the focusing lens of the focusing collimator 32 has a plano-convex lens and a crescent lens. Since the crescent lens has a better focusing effect, the crescent lens is adopted in this embodiment.

[0039] When a fire or other situations occur, some conventional induction indicating systems in the tunnel may not be able to be used due to power failure. The present invention does not require mains power during use, only needs to use the intelligent helmet to emit laser (the helmet body 1 can be built-in with a power source), and both the focusing collimator 32 and the first reflector 33 are components that do not require electricity, so the present invention can be used when the accident damages the mains power.

[0040] Since the indicating device adopts a relay method, the laser optical path requirements in the indicating device 3 need to be adjusted in advance to ensure that the optical path is always in a connected state. Moreover, considering the turning angles in the tunnel, all these require the indicating device 3 to be adjusted during construction and installation. In the traditional optical path adjustment method, a piece of paper tape is pasted in front of the reflecting mirror to be adjusted in the front optical path. Press the dot-matrix key, and the laser hits the paper tape to make a mark. Then, adjust the position of the laser tube or the angle and height of the reflecting mirror to ensure that the light beam emitted from the laser tube hits the center of the reflecting mirror, so as to ensure the optical path transmissibility between the indicating device 3 and the rear indicating device 3.

[0041] As Figure 2-3 shown, wherein, the first reflecting mirror 33 includes a first reflecting mirror body 331 and a rotating groove 332 located on the back side of the first reflecting mirror body 331. A spherical positioning member 34 is provided on the housing 31. The spherical positioning member 34 is embedded in the rotating groove 332 and is rotationally matched with the first reflecting mirror body 331. Through the cooperation of the rotating groove 332 and the spherical positioning member 34, the present invention can realize large-angle rotation of the first reflecting mirror 33, so that the first reflecting mirror 33 can be set towards the focusing collimator 32 of the next indicating device 3 to smoothly reflect the laser to the focusing collimator 32 of the next indicating device 3, which is convenient for use in various environments, such as uphill, downhill, and curves. Only when initially debugging is it necessary to adjust the orientation of the first reflecting mirror 33 until the light reflected by the first reflecting mirror 33 can irradiate the focusing collimator 32 of the next indicating device 3, then the debugging is completed. Without special circumstances (such as damage, repair, etc.) in the later stage, there is no need to adjust the position of the first reflecting mirror 33.

[0042] As a preferred method, a light sensor is provided on the mirror surface of the first reflecting mirror 33, and the light sensor is communicatively connected to the main controller. The main controller can receive the data transmitted by the light sensor and judge the distance from the tunnel exit according to the amount of light sensed by the light sensor. Specifically, when setting the indicating device 3, the spacing between them is the same. Therefore, as long as the amount of light sensed by the light sensor is multiplied by this spacing, the distance from the tunnel exit can be obtained. Then, the main controller can send the distance information to the controller on the smart helmet, and the voice module built in the smart helmet can play the distance information. If the distance in this direction is relatively far, the main controller can instruct people to escape in the opposite direction.

[0043] As Figure 5-6 shown, as another implementation manner, it further includes a plurality of reflecting devices 4 arranged on the tunnel inner wall. The reflecting device 4 includes a frame 41 and a second reflecting mirror 42 arranged on the frame 41. The second reflecting mirror 42 is arranged towards the focusing collimator 32 of the next indicating device 3;

[0044] The first reflector 33 is arranged facing the second reflector 42 of the adjacent reflecting device 4. The laser emitted by the first laser emitter 21 or the second laser emitter 22 converges on the focusing collimator 32 and is then reflected by the first reflector 33 and the second reflector 42 to the focusing collimator 32 of the next indicating device 3 until the tunnel exit, forming a broken-line guiding route. Once an accident occurs, such as a fire or a car accident, people in the tunnel can escape according to this route. When an accident occurs, there may be obstacles between two adjacent indicating devices 3, and the laser cannot be reflected to the focusing collimator 32 of the next indicating device 3 through the first reflector 33. In this embodiment, by arranging the first reflector 33 facing the second reflector 42 of the adjacent reflecting device 4, the situation where the laser cannot be reflected due to obstacles between two adjacent indicating devices 3 is avoided.

[0045] As a preferred mode, a plurality of indicating devices 3 are provided on both sides of the tunnel. In the second state, the laser emitted by the first laser emitter 21 and the second laser emitter 22 converges on the focusing collimator 32 and is then reflected by the first reflector 33 and the second reflector 42 to the focusing collimator 32 of the next indicating device 3, forming guiding routes on both sides of the tunnel.

[0046] As Figure 7 shown, in another embodiment, one end of the housing 31 of the indicating device 3 is a larger hole for installing the focusing collimator 32, and the other end is a small hole, and the size of the small hole is the same as the outer dimensions of the first laser emitter 21 and the second laser emitter 22. During use, the first laser emitter 21 or the second laser emitter 22 can be disassembled and installed in the small hole on the housing 31 of the nearest indicating device 3. The laser emitted after the disassembly of the first laser emitter 21 or the second laser emitter 22 directly irradiates the focusing collimator 32 of the adjacent indicating device 3. This embodiment can preferably stabilize the first laser emitter 21 or the second laser emitter 22.

[0047] In another embodiment, the first reflector 33 is rotationally fitted in the housing 31, and the mirror surface of the first reflector 33 is located at the focus of the focusing collimator 32, and the first reflector 33 is arranged facing the focusing collimator 32 of the next indicating device 3.

[0048] As Figure 8 shown, as a preferred mode, a plurality of scale stripes are provided on the surface of the focusing collimator 32, and a center mark is provided in the middle. During use, it is better to emit the laser to the center mark.

[0049] A tunnel safety guiding method uses a tunnel safety guiding system for guiding, including:

[0050] S100: Adjust the laser emitter 2 to face the focusing collimator 32 of the closest indicating device 3 and emit laser light. The first mirror 33 is located at the focal point of the focusing collimator 32.

[0051] S200: After the laser light converges on the focusing collimator 32, it is reflected by the first mirror 33 to the focusing collimator 32 of the next indicating device 3, forming an induction route.

[0052] S300: The main controller counts the number of laser reflections to obtain the approximate distance between the current position and the tunnel exit and provides an induction plan.

[0053] In the above S300, the main controller counts the number of times the light sensor detects the laser as the number of laser reflections. A light sensor is provided on the surface of the first mirror 33, and the light sensor is communicatively connected to the main controller. The main controller can receive the data transmitted by the light sensor and judge the distance from the tunnel exit according to the amount of light sensed by the light sensor. Specifically, when setting the indicating device 3, the spacing between them is the same. Therefore, as long as the amount of light sensed by the light sensor is multiplied by this spacing, the distance from the tunnel exit can be obtained. Then, the main controller can send the distance information to the controller on the smart helmet, and the voice module built into the smart helmet can play the distance information. If the distance in this direction is relatively far, the main controller can instruct people to escape in the opposite direction.

[0054] As a preferred method, in the above S200, it further includes several reflection devices 4 arranged on the tunnel wall. The reflection device 4 includes a frame 41 and a second mirror 42 arranged on the frame 41. The second mirror 42 is arranged facing the focusing collimator 32 of the next indicating device 3; the first mirror 33 is arranged facing the second mirror 42 of the adjacent reflection device 4. The laser light emitted by the first laser emitter 21 or the second laser emitter 22 converges on the focusing collimator 32 and is then reflected by the first mirror 33 and the second mirror 42 to the focusing collimator 32 of the next indicating device 3, forming a broken-line induction route. The laser light emitted by the laser emitter 2 converges on the focusing collimator 32 and is then reflected by the first mirror 33 and the second mirror 42 to the focusing collimator 32 of the next indicating device 3, forming a broken-line induction route.

[0055] The above is only the preferred implementation manner of the present invention. The protection scope of the present invention is subject to the scope defined by the claims. Several improvements and retouches made by those skilled in the art without departing from the spirit and scope of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A tunnel safety induction system, characterized in that, it includes a tunnel safety induction intelligent helmet, and the tunnel safety induction intelligent helmet includes: a helmet body (1) with an installation groove (11) provided at the upper end; a laser emitter (2) disposed in the installation groove (11), including: a first laser emitter (21) rotatably disposed on the surface of the installation groove (11); a second laser emitter (22) located above the first laser emitter (21) and rotatably disposed on the surface of the installation groove (11); the intelligent helmet has a first state and a second state; in the first state, the first laser emitter (21) and the second laser emitter (22) emit laser forward for ranging; in the second state, the first laser emitter (21) and the second laser emitter (22) emit laser towards both sides respectively; it further includes a plurality of indicating devices (3) evenly arranged on the ground; the indicating device (3) includes a housing (31), a convex lens (32) and a first reflector (33), the housing (31) is provided with a through installation cavity, the convex lens (32) is installed at one end of the installation cavity, the first reflector (33) is installed at the other end of the installation cavity, and the mirror surface of the first reflector (33) is located at the focal point of the convex lens (32); the first reflector (33) is arranged towards the convex lens (32) of the next indicating device (3), and the laser emitted by the first laser emitter (21) or the second laser emitter (22) converges on the convex lens (32) and is reflected by the first reflector (33) to the convex lens (32) of the next indicating device (3), forming an induction route.

2. The tunnel safety induction system according to claim 1, characterized in that, the first reflector (33) includes a first reflector body (331) and a rotating groove (332) located on the back side of the first reflector body (331), the housing (31) is provided with a spherical positioning member (34), and the spherical positioning member (34) is embedded in the rotating groove (332) and is rotatably matched with the first reflector body (331).

3. The tunnel safety induction system according to claim 1, characterized in that, a light sensor is provided on the mirror surface of the first reflector (33), and the light sensor is communicatively connected to the main controller.

4. The tunnel safety induction system according to claim 1, characterized in that, it further includes a plurality of reflection devices (4) provided on the tunnel inner wall, the reflection device (4) includes a frame (41) and a second reflector (42) provided on the frame (41), and the second reflector (42) is arranged towards the convex lens (32) of the next indicating device (3); the first reflector (33) is arranged towards the second reflector (42) of the adjacent reflection device (4), and the laser emitted by the first laser emitter (21) or the second laser emitter (22) converges on the convex lens (32) and is reflected by the first reflector (33) and the second reflector (42) to the convex lens (32) of the next indicating device (3), forming a broken line induction route.

5. A tunnel safety induction system according to claim 4, characterized in that, a plurality of indicating devices (3) are provided on both sides of the tunnel. In the second state, the laser beams emitted by the first laser emitter (21) and the second laser emitter (22) converge on the convex lens (32) and are reflected by the first reflector (33) and the second reflector (42) to the convex lens (32) of the next indicating device (3), forming an induction route on both sides of the tunnel.

6. A tunnel safety induction method, characterized in that, using the tunnel safety induction system according to any one of claims 1-5 for induction, including: S100: Adjust the laser emitter (2) so that it faces the convex lens (32) of the closest indicating device (3) and emits a laser beam; S200: The laser beam converges on the convex lens (32) and is reflected by the first reflector (33) to the convex lens (32) of the next indicating device (3), forming an induction route; S300: The main controller counts the number of laser reflections to obtain the distance between the current position and the tunnel exit and provides an induction scheme.

7. A tunnel safety induction method according to claim 6, characterized in that, in S300, the main controller counts the number of times the light sensor detects the laser as the number of laser reflections.

8. A tunnel safety induction method according to claim 6, characterized in that, in S200, the laser beam emitted by the laser emitter (2) converges on the convex lens (32) and is reflected by the first reflector (33) and the second reflector (42) to the convex lens (32) of the next indicating device (3), forming a broken-line induction route.

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