A road surface dryness and humidity detection device and detection method

Abstract

The present invention discloses a road surface dryness and wetness detection device, comprising a housing (1), a capillary water sampling component (2), a water storage component (3) and a detection component (4); the water storage component (3) is arranged in the housing (1), the capillary water sampling component (2) is tightly connected to the water storage component (3), and the detection component (4) is arranged on the water storage component (3). And a detection method using the device. The present invention provides a capillary water sampling component composed of a capillary tube bundle or a capillary action material, which can transfer water on the road surface to the water storage component through capillary action, thereby realizing timely sampling of road surface water conditions. The present invention can store ground water samples collected by the capillary water sampling component by providing a water storage component composed of a capillary action material, thereby realizing real-time detection of road surface dryness and wetness. The present invention performs road surface dryness and wetness detection by arranging the detection component on the water storage component, which does not damage the road surface and is not easily contaminated.

Description

Technical Field

[0001] The present invention relates to the field of traffic safety, and in particular to a road surface dryness and wetness detection device and a detection method used on a road. Background Art

[0002] The mainstream of existing pavement (road surface) wetness detection devices is to detect water film thickness based on infrared laser and to detect pavement wetness based on conductivity. The method of detecting pavement wetness based on infrared laser is to detect pavement wetness and water film thickness. The equipment requires that the laser irradiation angle cannot be too large, otherwise the reflected detection signal cannot be obtained. Since its use requires certain technical conditions and is expensive, it is difficult to popularize.

[0003] Another relatively simple method for detecting pavement dryness and wetness is to detect the conductivity (or resistance) of the pavement and determine the pavement dryness and wetness by the conductivity. Products designed based on the conductivity principle generally embed contacts (electrodes) in the pavement and measure the conductivity data between the contacts. The biggest problem faced by this method is the contamination of the contacts by pavement pollutants. When pavement pollutants accumulate on or around the contacts, the actual value of the pavement dryness and wetness will be misjudged. Summary of the invention

[0004] The purpose of the present invention is to provide a road surface dryness and wetness detection device and detection method for use on roads. The detection device will not damage the road surface, is not easily contaminated, can detect the road surface dryness and wetness, is cheap, and has a wide application prospect.

[0005] A road surface dryness and wetness detection device comprises a shell, a capillary water sampling component, a water storage component and a detection component; the water storage component is arranged in the shell, the capillary water sampling component is tightly connected to the water storage component, and the detection component is arranged on the water storage component.

[0006] The shell is box-shaped, a support bracket is provided inside the shell, and the water storage component is arranged on the support bracket.

[0007] The capillary water collection component is a capillary tube bundle; one end of the capillary water collection component extends to the bottom of the shell, and the other end is tightly connected to the water storage component; the water storage component is a capillary action material.

[0008] The capillary water collection component and the water storage component are made of capillary action materials; one end of the capillary water collection component extends to the bottom of the shell, and the other end is tightly connected to the water storage component.

[0009] The aforementioned detection component is a resistance detection device, a conductivity detection device or a capacitance detection device.

[0010] A detection method using the aforementioned pavement dryness and wetness detection device: by setting a capillary water sampling component composed of a capillary tube bundle or a capillary material to collect ground water samples into a water storage component, and then using a detection component set on the water storage component to detect whether there is water in the water storage component, thereby realizing the detection of pavement dryness and wetness.

[0011] When the aforementioned detection component is a resistance detection device, a plurality of groups of non-contact electrodes are arranged on the water storage component, and the resistance value between each group of electrodes is detected to determine whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness.

[0012] The above-mentioned method determines whether there is water in the water storage component by detecting the resistance value between each group of electrodes. Specifically, it detects whether the resistance value between each group of electrodes is lower than a threshold range. If it is lower than the threshold range, it is determined that there is water in the water storage component.

[0013] When the aforementioned detection component is a conductivity detection device, a plurality of groups of non-contact electrodes are arranged on the water storage component, and the conductivity between each group of electrodes is detected to determine whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness; the method of determining whether there is water in the water storage component by detecting the conductivity between each group of electrodes is specifically to detect whether the conductivity between each group of electrodes is higher than a threshold range, and if it is higher than the threshold range, it is determined that there is water in the water storage component.

[0014] When the aforementioned detection component is a capacitance detection device, a plurality of test capacitors are arranged on the water storage component, and the capacitance value of the test capacitor is detected to determine whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness; the method of determining whether there is water in the water storage component by detecting the capacitance value of the capacitor is specifically to detect whether the capacitance value of the test capacitor is higher than a threshold range, and if it is higher than the threshold range, it is determined that there is water in the water storage component.

[0015] Compared with the prior art, the present invention provides a capillary water sampling component composed of a capillary tube bundle or a capillary action material, which can transfer water on the road surface to the water storage component through capillary action, thereby realizing timely sampling of road surface water conditions.

[0016] The present invention can store ground water samples collected by the capillary water collection component by arranging a water storage component composed of a capillary action material, thereby realizing real-time detection of road surface dryness and wetness.

[0017] The present invention arranges the detection component on the water storage component to detect the dryness and wetness of the road surface, which will not damage the road surface and is not easily contaminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is another structural schematic diagram of the present invention.

[0020] Reference numerals

[0021] 1-shell, 11-support bracket, 2-capillary water sampling component, 3-water storage component, 4-detection component.

[0022] Specific implementation method

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] A road surface dryness and wetness detection device comprises a shell 1, a capillary water sampling component 2, a water storage component 3 and a detection component 4; the water storage component 3 is arranged in the shell 1, the capillary water sampling component 2 is tightly connected to the water storage component 3, and the detection component 4 is arranged on the water storage component 3.

[0026] The shell 1 is box-shaped, a support bracket 11 is provided inside the shell 1 , and the water storage assembly 3 is arranged on the support bracket 11 .

[0027] The capillary water collection component 2 is a capillary tube bundle; one end of the capillary water collection component 2 extends to the bottom of the shell 1, and the other end is tightly connected to the water storage component 3; the water storage component 3 is a capillary action material.

[0028] The capillary water collection component 2 and the water storage component 3 are made of capillary action materials; one end of the capillary water collection component 2 extends to the bottom of the shell 1, and the other end is tightly connected to the water storage component 3.

[0029] The detection component 4 is a resistance detection device, a conductivity detection device or a capacitance detection device.

[0030] The road surface dryness and wetness detection device also includes a controller, which is used to control the operation of the detection component 4.

[0031] A detection method using the aforementioned pavement dryness and wetness detection device: by setting a capillary water sampling component composed of a capillary tube bundle or a capillary material to collect ground water samples into a water storage component, and then using a detection component set on the water storage component to detect whether there is water in the water storage component, thereby realizing the detection of pavement dryness and wetness.

[0032] When the detection component is a resistance detection device, a plurality of groups of non-contact electrodes are arranged on the water storage component, and the resistance value between each group of electrodes is detected to determine whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness.

[0033] The method of judging whether there is water in the water storage component is by detecting the resistance value between each group of electrodes. Specifically, it is to detect whether the resistance value between each group of electrodes is lower than a threshold range. If it is lower than the threshold range, it is determined that there is water in the water storage component.

[0034] When the detection component is a conductivity detection device, a plurality of groups of non-contact electrodes are arranged on the water storage component, and the conductivity between each group of electrodes is detected to determine whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness; the method of determining whether there is water in the water storage component by detecting the conductivity between each group of electrodes is specifically to detect whether the conductivity between each group of electrodes is higher than a threshold range, and if it is higher than the threshold range, it is determined that there is water in the water storage component.

[0035] When the detection component is a capacitance detection device, a plurality of test capacitors are arranged on the water storage component, and the capacitance value of the test capacitor is detected to determine whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness; the method of determining whether there is water in the water storage component by detecting the capacitance value of the capacitor is specifically as follows: detecting whether the capacitance value of the test capacitor is higher than a threshold range, and if so, determining that there is water in the water storage component.

[0036] When in use, the pavement dryness and humidity detection device is installed on the ground to detect the pavement dryness and humidity.

[0037] In this embodiment, the water collection component 2 composed of capillary action material or capillary tube bundle extracts water from the road surface based on capillary action and conducts it to the water storage component 3 composed of capillary action material, and the detection component 4 is arranged on the water storage component 3. Capillary action refers to the attraction of the liquid surface to the solid surface.

[0038] In this embodiment, all materials with capillary action are applicable (such as strip or block cloth or similar materials, polyester fiber materials, high count and high density canvas, etc.); one end of the water collection component 2 is in contact with the road surface, and the other end is separated from the road surface and extended to the water storage component 3. According to the capillary action, the water collection component 2 can collect water from the road surface into the water storage component 3. According to the length and material of the water collection component 2, the collection time is 1min-5min.

[0039] The moisture content between the pavement dryness and humidity detection device and the pavement in this embodiment is in a self-balanced state. When there is water on the pavement, the pavement dryness and humidity detection device will absorb the water on the pavement to the water storage component 3 based on capillary action. Conversely, when the pavement is dry but there is still water on the water storage component 3, the water on the water storage component 3 will be pumped away by the dry pavement based on capillary action and / or siphon action, so that the water storage component 3 and the actual water storage condition of the pavement remain basically similar.

[0040] Since the water in the water storage component 3 and the water on the road surface appear basically at the same time, the detection component 4 detecting the water in the water storage component 3 is equivalent to detecting the water on the road surface, and since the water in the water storage component 3 is obtained through the capillary action of the water sampling component 2 and will not be contaminated, a simulated detection of the road surface water condition is achieved.

[0041] Example 2

[0042] A road surface dryness and humidity detection device, such as Figure 1 As shown, it includes a shell 1, a capillary water sampling component 2, a water storage component 3 and a detection component 4; the water storage component 3 is arranged in the shell 1, the capillary water sampling component 2 is tightly connected to the water storage component 3, and the detection component 4 is arranged on the water storage component 3.

[0043] The shell 1 is box-shaped, a support bracket 11 is provided inside the shell 1 , and the water storage assembly 3 is arranged on the support bracket 11 .

[0044] The capillary water collection component 2 is a capillary tube bundle; one end of the capillary water collection component 2 extends to the bottom of the shell 1, and the other end is tightly connected to the water storage component 3; the water storage component 3 is a capillary action material.

[0045] The detection component 4 is a resistance detection device.

[0046] The road surface dryness and wetness detection device also includes a controller, which is used to control the operation of the detection component 4.

[0047] A detection method using the aforementioned pavement dryness and wetness detection device: by setting a capillary water sampling component composed of a capillary tube bundle or a capillary material to collect ground water samples into a water storage component, and then using a detection component set on the water storage component to detect whether there is water in the water storage component, thereby realizing the detection of pavement dryness and wetness.

[0048] The detection component is a resistance detection device. Several groups of non-contact electrodes are set on the water storage component. By detecting the resistance value between each group of electrodes, it is judged whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness.

[0049] The method of judging whether there is water in the water storage component is by detecting the resistance value between each group of electrodes. Specifically, it is to detect whether the resistance value between each group of electrodes is lower than a threshold range. If it is lower than the threshold range, it is determined that there is water in the water storage component.

[0050] When in use, the pavement dryness and humidity detection device is installed on the ground to detect the pavement dryness and humidity.

[0051] In this embodiment, the water collection component 2 composed of capillary action material or capillary tube bundle extracts water from the road surface based on capillary action and conducts it to the water storage component 3 composed of capillary action material, and the detection component 4 is arranged on the water storage component 3. Capillary action refers to the attraction of the liquid surface to the solid surface.

[0052] In this embodiment, all materials with capillary action are applicable (such as strip or block cloth or similar materials, polyester fiber materials, high count and high density canvas, etc.); one end of the water collection component 2 is in contact with the road surface, and the other end is separated from the road surface and extended to the water storage component 3. According to the capillary action, the water collection component 2 can collect water from the road surface into the water storage component 3. According to the length and material of the water collection component 2, the collection time is 1min-5min.

[0053] The moisture content between the pavement dryness and humidity detection device and the pavement in this embodiment is in a self-balanced state. When there is water on the pavement, the pavement dryness and humidity detection device will absorb the water on the pavement to the water storage component 3 based on capillary action. Conversely, when the pavement is dry but there is still water on the water storage component 3, the water on the water storage component 3 will be pumped away by the dry pavement based on capillary action and / or siphon action, so that the water storage component 3 and the actual water storage condition of the pavement remain basically similar.

[0054] Since the water in the water storage component 3 and the water on the road surface appear basically at the same time, the detection component 4 detecting the water in the water storage component 3 is equivalent to detecting the water on the road surface, and since the water in the water storage component 3 is obtained through the capillary action of the water sampling component 2 and will not be contaminated, a simulated detection of the road surface water condition is achieved.

[0055] Example 3

[0056] A road surface dryness and humidity detection device, such as Figure 1 As shown, it includes a shell 1, a capillary water sampling component 2, a water storage component 3 and a detection component 4; the water storage component 3 is arranged in the shell 1, the capillary water sampling component 2 is tightly connected to the water storage component 3, and the detection component 4 is arranged on the water storage component 3.

[0057] The shell 1 is box-shaped, a support bracket 11 is provided inside the shell 1 , and the water storage assembly 3 is arranged on the support bracket 11 .

[0058] The capillary water collection component 2 is a capillary tube bundle; one end of the capillary water collection component 2 extends to the bottom of the shell 1, and the other end is tightly connected to the water storage component 3; the water storage component 3 is a capillary action material.

[0059] The detection component 4 is a conductivity detection device.

[0060] The road surface dryness and wetness detection device also includes a controller, which is used to control the operation of the detection component 4.

[0061] A detection method using the aforementioned pavement dryness and wetness detection device: by setting a capillary water sampling component composed of a capillary tube bundle or a capillary material to collect ground water samples into a water storage component, and then using a detection component set on the water storage component to detect whether there is water in the water storage component, thereby realizing the detection of pavement dryness and wetness.

[0062] The detection component is a conductivity detection device. Several groups of non-contact electrodes are set on the water storage component. By detecting the conductivity between each group of electrodes, it is determined whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness.

[0063] The method of judging whether there is water in the water storage component is by detecting the conductivity between each group of electrodes. Specifically, it is to detect whether the conductivity between each group of electrodes is higher than a threshold range. If it is higher than the threshold range, it is determined that there is water in the water storage component.

[0064] When in use, the pavement dryness and humidity detection device is installed on the ground to detect the pavement dryness and humidity.

[0065] In this embodiment, the water collection component 2 composed of capillary action material or capillary tube bundle extracts water from the road surface based on capillary action and conducts it to the water storage component 3 composed of capillary action material, and the detection component 4 is arranged on the water storage component 3. Capillary action refers to the attraction of the liquid surface to the solid surface.

[0066] In this embodiment, all materials with capillary action are applicable (such as strip or block cloth or similar materials, polyester fiber materials, high count and high density canvas, etc.); one end of the water collection component 2 is in contact with the road surface, and the other end is separated from the road surface and extended to the water storage component 3. According to the capillary action, the water collection component 2 can collect water from the road surface into the water storage component 3. According to the length and material of the water collection component 2, the collection time is 1min-5min.

[0067] The moisture content between the pavement dryness and humidity detection device and the pavement in this embodiment is in a self-balanced state. When there is water on the pavement, the pavement dryness and humidity detection device will absorb the water on the pavement to the water storage component 3 based on capillary action. Conversely, when the pavement is dry but there is still water on the water storage component 3, the water on the water storage component 3 will be pumped away by the dry pavement based on capillary action and / or siphon action, so that the water storage component 3 and the actual water storage condition of the pavement remain basically similar.

[0068] Since the water in the water storage component 3 and the water on the road surface appear basically at the same time, the detection component 4 detecting the water in the water storage component 3 is equivalent to detecting the water on the road surface, and since the water in the water storage component 3 is obtained through the capillary action of the water sampling component 2 and will not be contaminated, a simulated detection of the road surface water condition is achieved.

[0069] Example 4

[0070] A road surface dryness and humidity detection device, such as Figure 2 As shown, it includes a shell 1, a capillary water sampling component 2, a water storage component 3 and a detection component 4; the water storage component 3 is arranged in the shell 1, the capillary water sampling component 2 is tightly connected to the water storage component 3, and the detection component 4 is arranged on the water storage component 3.

[0071] The shell 1 is box-shaped, a support bracket 11 is provided inside the shell 1 , and the water storage assembly 3 is arranged on the support bracket 11 .

[0072] The capillary water collection component 2 and the water storage component 3 are made of capillary action materials; one end of the capillary water collection component 2 extends to the bottom of the shell 1, and the other end is tightly connected to the water storage component 3.

[0073] The detection component 4 is a capacitance detection device.

[0074] The road surface dryness and wetness detection device also includes a controller, which is used to control the operation of the detection component 4.

[0075] A detection method using the aforementioned pavement dryness and wetness detection device: by setting a capillary water sampling component composed of a capillary tube bundle or a capillary material to collect ground water samples into a water storage component, and then using a detection component set on the water storage component to detect whether there is water in the water storage component, thereby realizing the detection of pavement dryness and wetness.

[0076] The detection component is a capacitance detection device. Several groups of test capacitors are arranged on the water storage component. By detecting the capacitance value of the test capacitor, it is judged whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness.

[0077] The method of judging whether there is water in the water storage component by detecting the capacitance value of the capacitor is specifically as follows: detecting whether the capacitance value of the test capacitor is higher than a threshold range, and if so, determining that there is water in the water storage component.

[0078] When in use, the pavement dryness and humidity detection device is installed on the ground to detect the pavement dryness and humidity.

[0079] In this embodiment, the water collection component 2 composed of capillary action material or capillary tube bundle extracts water from the road surface based on capillary action and conducts it to the water storage component 3 composed of capillary action material, and the detection component 4 is arranged on the water storage component 3. Capillary action refers to the attraction of the liquid surface to the solid surface.

[0080] In this embodiment, all materials with capillary action are applicable (such as strip or block cloth or similar materials, polyester fiber materials, high count and high density canvas, etc.); one end of the water collection component 2 is in contact with the road surface, and the other end is separated from the road surface and extended to the water storage component 3. According to the capillary action, the water collection component 2 can collect water from the road surface into the water storage component 3. According to the length and material of the water collection component 2, the collection time is 1min-5min.

[0081] The moisture content between the pavement dryness and humidity detection device and the pavement in this embodiment is in a self-balanced state. When there is water on the pavement, the pavement dryness and humidity detection device will absorb the water on the pavement to the water storage component 3 based on capillary action. Conversely, when the pavement is dry but there is still water on the water storage component 3, the water on the water storage component 3 will be pumped away by the dry pavement based on capillary action and / or siphon action, so that the water storage component 3 and the actual water storage condition of the pavement remain basically similar.

[0082] Since the water in the water storage component 3 and the water on the road surface appear basically at the same time, the detection component 4 detecting the water in the water storage component 3 is equivalent to detecting the water on the road surface, and since the water in the water storage component 3 is obtained through the capillary action of the water sampling component 2 and will not be contaminated, a simulated detection of the road surface water condition is achieved.

[0083] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrally connected; may be directly connected, or indirectly connected through an intermediate medium, or may be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0084] Finally, it should be noted that the above embodiments are only specific embodiments of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for detecting road surface dryness and wetness, characterized in that: The detection device comprises a housing (1), a capillary water sampling component (2), a water storage component (3) and a detection component (4); the water storage component (3) is arranged in the housing (1), the capillary water sampling component (2) is tightly connected to the water storage component (3), and the detection component (4) is arranged on the water storage component (3); the housing (1) is box-shaped, a support bracket (11) is arranged inside the housing (1), and the water storage component (3) is arranged on the support bracket (11); The capillary water collection component (2) and the water storage component (3) are made of capillary action materials; one end of the capillary water collection component (2) extends to the bottom of the shell (1), and the other end is tightly connected to the water storage component (3); The detection component (4) is a resistance detection device, a conductivity detection device or a capacitance detection device; A capillary water sampling component made of capillary material is provided to collect ground water samples into a water storage component, and then a detection component provided on the water storage component is used to detect whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness.

2. The method for detecting road surface dryness and wetness according to claim 1, characterized in that: When the detection component is a resistance detection device, a plurality of groups of non-contact electrodes are arranged on the water storage component, and the resistance value between each group of electrodes is detected to determine whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness.

3. The method for detecting road surface dryness and wetness according to claim 2, characterized in that: The method of judging whether there is water in the water storage component is by detecting the resistance value between each group of electrodes. Specifically, it is to detect whether the resistance value between each group of electrodes is lower than a threshold range. If it is lower than the threshold range, it is determined that there is water in the water storage component.

4. The method for detecting road surface dryness and wetness according to claim 1, characterized in that: When the detection component is a conductivity detection device, a plurality of groups of non-contact electrodes are arranged on the water storage component, and the conductivity between each group of electrodes is detected to determine whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness; the method of determining whether there is water in the water storage component by detecting the conductivity between each group of electrodes is specifically to detect whether the conductivity between each group of electrodes is higher than a threshold range, and if it is higher than the threshold range, it is determined that there is water in the water storage component.

5. The method for detecting road surface dryness and wetness according to claim 1, characterized in that: When the detection component is a capacitance detection device, several groups of test capacitors are arranged on the water storage component, and the capacitance value of the test capacitor is detected to determine whether there is water in the water storage component, thereby realizing the detection of road surface dryness and wetness; the method of determining whether there is water in the water storage component by detecting the capacitance value of the test capacitor is specifically to detect whether the capacitance value of the test capacitor is higher than a threshold range, and if it is higher than the threshold range, it is determined that there is water in the water storage component.

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