An intelligent road surface drainage system

Abstract

The present invention relates to an intelligent road surface drainage system, belonging to the field of automation technology, and includes a drainage module, a detection module and a control module. The control module is electrically connected to the drainage module respectively, and the drainage module is arranged below the road surface joint; the detection module includes a transmitting unit, a receiving unit and a raindrop detection unit. The transmitting unit is used to emit an optical signal towards the road surface joint, the receiving unit is used to receive the optical signal and send the receiving condition to the control module, the control module judges whether there is water accumulation according to the receiving condition of the receiving unit, the control module is used to judge whether raindrops are detected according to the raindrop detection unit, and the control module instructs the drainage module to start when any one of the judgment results is yes; it has strong accuracy in detecting water accumulation.

Description

Technical Field

[0001] The present invention belongs to the technical field of automation technology, and particularly relates to an intelligent road drainage system. Background Art

[0002] For roads that serve as a medium for vehicle travel, although there are several sewers provided on the road surface and in some cases, drainage ditches are provided on the roadside to provide a flow channel for accumulated water when there is accumulated water on the road surface, preventing the accumulated water from accumulating on the road surface for a long time and interfering with travel or damaging the road surface. However, in some cases, when the amount of accumulated water is large or there are many solid impurities in the accumulated water, an active drainage module needs to be introduced. The active drainage system is arranged in the road joints and is used to guide the accumulated water into the roadside drainage ditches.

[0003] Since the active drainage module consumes electricity when it starts, in order to start the active drainage module only when active drainage is needed, a water accumulation detection module needs to be introduced to detect the accumulated water. Only when more accumulated water is detected, the active drainage module is started. Generally, the water accumulation detection equipment or method makes a judgment on whether there is accumulated water by distinguishing the situation of light on the conventional surface or the accumulated water surface. For example, a water accumulation detection device and a robot disclosed in Chinese Patent CN110146897A control a transmitting device to emit a first light beam towards the ground direction through a processor, a receiving device receives a second light beam generated by the reflection of the first light beam by the ground, and performs photoelectric conversion on the second light beam. Then, the processor detects whether there is accumulated water on the ground according to the electrical signal corresponding to the second light beam. Thus, during the movement of the water accumulation detection device on the ground, the water accumulation detection of each position on the ground is realized. However, although it only requires a transmitting device and a receiving device and has a relatively simple structure, when the above solution is applied to road surface detection, as the road surface is an open-air structure, the accumulated water on it is highly likely to come from heavy rain weather. When heavy rain occurs and causes water accumulation, the water surface of the accumulated water itself cannot form a flat surface under the impact of raindrops, and the reflection of light is weak. At this time, the receiving device cannot accurately receive the reflected light signal, so the accumulated water cannot be detected accurately, and the detection accuracy of the accumulated water is relatively low. Therefore, an intelligent road drainage system with strong accuracy in detecting accumulated water is needed. Summary of the Invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides an intelligent road drainage system with the characteristic of strong accuracy in detecting accumulated water.

[0005] The object of the present invention can be achieved by the following technical solutions:

[0006] An intelligent road drainage system includes a drainage module, a detection module, and a control module. The control module is electrically connected to the drainage module and the detection module respectively, and the drainage module is arranged below the road joint;

[0007] The detection module includes a transmitting unit, a receiving unit and a raindrop detection unit. The transmitting unit is used to emit an optical signal towards the road joint. The receiving unit is used to receive the optical signal and send the reception condition to the control module. The control module determines whether there is water accumulation according to the reception condition of the receiving unit. The control module is used to determine whether raindrops are detected according to the raindrop detection unit. When any one of the judgment results is yes, the control module instructs the drainage module to start.

[0008] As a preferred technical solution of the present invention, the raindrop detection unit includes a laser transmitter and a laser receiver. The laser transmitter and the laser receiver are respectively arranged on both sides of the road joint. The laser transmitter is arranged towards the laser receiver. The laser receiver is used to receive the laser emitted by the laser transmitter and upload the reception result to the control module. The control module determines whether there are raindrops according to the reception result.

[0009] As a preferred technical solution of the present invention, the control module is electrically connected to an energy module. The energy module includes a solar panel and a battery pack that are electrically connected to each other. The solar panel is used to supply power to the battery pack. The battery pack is used to supply power to the detection module and the drainage module.

[0010] As a preferred technical solution of the present invention, when the control module determines that there are raindrops, it instructs the laser transmitter to increase the power and re-determines whether there are raindrops.

[0011] As a preferred technical solution of the present invention, the drainage module includes a driving wheel, a driven wheel and a chain tensioned on the driven wheel and the driving wheel. A plurality of scrapers are arranged on the chain.

[0012] As a preferred technical solution of the present invention, an arc-shaped edge is arranged at one end of any scraper away from the chain, and the thickness of the arc-shaped edge gradually narrows.

[0013] The beneficial effects of the present invention are as follows:

[0014] (1) By enabling the control module to simultaneously determine whether there is water accumulation and whether there are raindrops according to the transmitting unit, the receiving unit and the raindrop detection unit, and starting the drainage module when any one of the judgment results is yes, it avoids the interference of raindrops on water accumulation detection when the road surface is under heavy rain, resulting in the detection module being unable to send corresponding signals when drainage is required or there is water accumulation, and the drainage module being unable to start in time, thus preventing the occurrence of water accumulation and improving the detection accuracy of water accumulation.

[0015] (2) By instructing the laser emitter to increase the power when raindrops are initially detected and then re-determining whether there are raindrops, the reduction in the laser reception intensity caused by factors other than raindrops is reduced, and the misjudgment of the existence of ponding is avoided, further improving the accuracy of ponding detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a schematic cross-sectional structure diagram of the present invention;

[0018] Figure 2 is a side view of the cross-sectional structure of the present invention;

[0019] Figure 3 is a schematic axial cross-section diagram of the drainage module;

[0020] Figure 4 is a drawing of the prior art;

[0021] Description of the main component symbols:

[0022] In the figure: 1, road; 11, road surface joint; 12, water guide cavity; 13, drainage channel; 2, drainage module; 21, driving wheel; 22, chain; 23, scraper; 3, detection module; 31, transmitting unit; 32, receiving unit; 33, laser emitter; 34, laser receiver; 4, control module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, will describe in detail the specific embodiments, structures, features, and effects according to the present invention.

[0024] Please refer to Figures 1-4 , an intelligent road surface drainage system, including a drainage module 2 and a control module 4. The control module 4 is electrically connected to the drainage module 2 respectively. The drainage module 2 is arranged below the road surface joint 11. Specifically, there is a joint between the structures of two adjacent roads 1. One end of each of the two road surfaces facing each other is provided with a gap wall, and there is a gap between the two gap walls, forming the road surface joint 11. A water guide cavity 12 is formed below the road surface joint 11. Drainage channels 13 are arranged on both sides of the road surface. The drainage channels 13 are communicated with the water guide cavity 12. The drainage module 2 is arranged in the water guide cavity 12 and is used to guide the water in the water guide cavity 12 to the drainage channels 13. The drainage module 2 is electrically connected to the control module 4, and the control module 4 instructs the start and stop of the drainage module 2;

[0025] Since the active drainage module 2 consumes power when it starts, and there may be accumulated water in the water guide cavity 12, resulting in a probability of accumulated water on the upper road surface. When active drainage is required, the active drainage module 2 needs to be started. Therefore, a water accumulation detection module 3 is introduced to detect the accumulated water. When a large amount of accumulated water is detected, the active drainage module 2 is started. For this purpose, a detection module 3 is also included. The detection module 3 is electrically connected to the control module 4. The detection module 3 includes a transmitting unit 31 and a receiving unit 32. In this embodiment, the transmitting unit 31 is a searchlight, and the receiving unit 32 is a photoelectric sensor. The transmitting unit 31 and the receiving unit 32 are respectively arranged on both sides of the road surface joint 11. The searchlight and the receiving unit 32 are both arranged facing the center of the road surface joint 11. The heights of the transmitting unit 31 and the receiving unit 32 are the same. At this time, the angles between the lines connecting the transmitting unit 31 and the receiving unit 32 to the road surface joint 11 and the road surface are the same. The receiving unit 32 is used to receive the optical signal emitted by the transmitting unit 31 and transmit the intensity of the optical signal to the control module 4 in the form of an electrical signal. The control module 4 determines whether there is accumulated water according to the magnitude of the optical signal.

[0026] When there is a large amount of accumulated water near the road surface joint 11, it means that the drainage module 2 needs to be started. The transmitting unit 31 emits an optical signal. After the optical signal is specularly reflected by the water surface of the accumulated water, it enters the receiving unit 32 with a relatively strong light intensity. The receiving unit 32 uploads the received light intensity to the control module 4. The control module 4 determines that the optical signal is strong. At this time, the control module 4 determines that there is accumulated water according to the strong optical signal, and sends a signal to the drainage module 2 to instruct the drainage module 2 to start.

[0027] When there is no accumulated water or only a small amount of accumulated water near the road surface joint 11, the optical signal emitted by the transmitting unit 31 enters the receiving unit 32 with a relatively weak light intensity after a small amount of specular reflection and diffuse reflection on the road surface. The control module 4 determines that the optical signal is weak. At this time, the control module 4 determines that there is no accumulated water according to the strong optical signal and instructs the drainage module 2 to stop moving.

[0028] During the above detection process, as the road surface is an open-air structure, there is a high probability that the accumulated water on it comes from heavy rain weather. When heavy rain causes water accumulation, the water surface of the accumulated water itself cannot form a flat surface under the impact of raindrops, and the specular reflection effect on light is weak. At this time, the receiving device cannot accurately receive the information transmitted by the reflected optical signal, so as to detect the accumulated water, and the detection accuracy of the accumulated water is relatively low. Even when the heavy rain stops and the water surface of the road surface returns to rest, when the detection module 3 detects the accumulated water again, a large amount of accumulated water has already formed, and the drainage system cannot start draining when the heavy rain occurs, and the drainage lag is strong. To improve the accuracy of real-time detection, it also includes a raindrop detection unit. The raindrop detection unit is electrically connected to the control module 4. The control module 4 is used to judge whether raindrops are detected according to the raindrop detection unit. When the control module 4 makes two judgments on whether there is accumulated water and whether there are raindrops, if any one of the judgment results is yes, it commands the drainage module 2 to start;

[0029] Specifically, when it is judged that there is accumulated water and no raindrops, it means that the accumulated water has formed on the road surface. At this time, it is necessary to start the drainage module 2 to assist in draining the accumulated water;

[0030] When it is judged that there is no accumulated water, or although there is accumulated water but the detection module 3 cannot detect the accumulated water, but it is judged that there are raindrops, it means that the heavy rain interferes with the detection of the accumulated water by the detection module 3. At this time, it is necessary to start the drainage module 2 to drain the water guiding cavity 12 before the heavy rain causes the formation of accumulated water;

[0031] When both judgments are yes, it means that it is raining heavily and there is already accumulated water that can be detected by the detection module 3. At this time, it is also necessary to start the drainage module 2 to assist in draining the accumulated water;

[0032] When the results of both judgments are no, it means that it is not raining and there is no accumulated water. At this time, it means that there is no need to drain the accumulated water. At this time, the control module 4 commands the drainage module 2 to stop running;

[0033] By enabling the control module 4 to simultaneously judge whether there is accumulated water and whether there are raindrops according to the transmitting unit 31, the receiving unit 32 and the raindrop detection unit, and starting the drainage module 2 when any one of the judgment results is yes, it avoids the interference of raindrops on the detection of accumulated water on the road surface during heavy rain, resulting in the detection module 3 being unable to send corresponding signals when drainage is required or there is accumulated water, and the drainage module 2 being unable to start in time, thereby avoiding the occurrence of accumulated water and improving the detection accuracy of accumulated water.

[0034] Specifically, the raindrop detection unit includes a laser emitter 33 and a laser receiver 34. The laser emitter 33 and the laser receiver 34 are respectively arranged on both sides of the road surface joint 11. The laser emitter 33 is arranged facing the laser receiver 34. The laser receiver 34 is used to receive the laser emitted by the laser emitter and upload the reception result to the control module 4. The control module 4 determines whether there are raindrops according to the reception result;

[0035] Since the laser emitter 33 and the laser receiver 34 are arranged on both sides of the road surface joint 11, that is, on both sides of the road surface, there is a certain interval between them. In sunny days or light rain, when the laser emitted by the laser emitter 33 enters the laser receiver 34, the light intensity entering the laser receiver 34 is relatively strong. In heavy rain weather, the heavy rain raindrops continuously pass through the interval space between the laser emitter 33 and the laser receiver 34. During the propagation of the laser emitted by the laser emitter 33, it alternately passes through raindrops and air. During the process of medium transformation, the laser light intensity is weakened. The light intensity received by the laser receiver 34 is relatively weak. After the laser receiver 34 receives the laser, it sends the received laser light intensity signal to the control module 4. The control module 4 determines whether there are raindrops according to the signal intensity;

[0036] When the reception situation shows that the laser light intensity is relatively strong, it means that there are no raindrops between the laser emitter 33 and the laser receiver 34. At this time, the judgment result of the control module 4 on whether there are raindrops is no. When the reception situation shows that the laser light intensity is relatively weak, it means that there are raindrops between the laser emitter 33 and the laser receiver 34. At this time, the judgment result of the control module 4 on whether there are raindrops is yes.

[0037] To save the power consumption of the entire drainage system, the control module 4 is electrically connected to an energy module. The energy module includes a solar panel and a battery pack that are electrically connected to each other. The solar panel is used to supply power to the battery pack. The battery pack is used to supply power to the detection module 3 and the drainage module 2. Specifically, the solar panel is arranged on one side of the road surface drainage channel 13, and the battery pack is arranged below the solar panel. The battery pack is surrounded by a waterproof cabinet. The battery pack and the solar panel are electrically connected by a waterproof cable passing through the side wall of the waterproof cabinet. A sealing ring is arranged at the position where the waterproof cabinet passes through the waterproof cable. During use, the control module 4 controls the external power supply situation of the battery pack and guides the battery pack to supply power to the emission module, the drainage module 2 and the laser emitter 33. The control module 4 controls the start and stop by controlling the power supply magnitude of the battery pack to the emission module, the drainage module 2 and the laser emitter 33.

[0038] In some cases, when the laser intensity received by the laser receiver 34 is relatively low, it may be caused by other factors between the laser emitter 33 and the laser receiver 34, such as water mist. To avoid judging the existence of raindrops caused by factors other than raindrops, when the control module 4 judges the existence of raindrops, it instructs the laser emitter 33 to increase the power and re-judges whether there are raindrops;

[0039] Specifically, when the control module 4 determines that there are raindrops when the instruction drainage module 2 stops running, the control module 4 adjusts the power of the laser emitter 33 to twice the standard value, and receives the reception result of the laser receiver 34 again after 3 seconds. When the reception result shows that the light intensity is weaker than the standard value, the control module 4 determines that there are raindrops, adjusts the power of the laser emitter 33 to the standard value. When the reception result shows that the light intensity is higher than the standard value, the control module 4 determines that there are no raindrops, and adjusts the power of the laser emitter 33 to the standard value;

[0040] By instructing the laser emitter 33 to increase the power when initially determining that there are raindrops and re-determining whether there are raindrops, it reduces the reduction of laser reception intensity caused by factors other than raindrops and misjudgment of the existence of accumulated water, and further improves the accuracy of accumulated water detection.

[0041] For the drainage module 2, specifically, it includes a driving wheel 21, a driven wheel, and a chain 22 tensioned on the driven wheel and the driving wheel 21. A number of scrapers 23 are provided on the chain 22,

[0042] Among them, the driving wheel 21 and the driven wheel are respectively arranged on the parts of the side walls of the drainage channels 13 on both sides of the road surface facing the water guide cavity 12. At this time, the driving wheel 21 and the driven wheel are both arranged pointing to the opening of the water guide cavity 12, and the connection line between the driving wheel 21 and the driven wheel is parallel to the direction of the water guide cavity 12. The driving wheel 21 is drivingly connected to a motor. A tensioned chain 22 is provided on the driving wheel 21 and the driven wheel. The chain 22 rotates under the drive of the driving wheel 21. The installation positions of the driving wheel 21 and the driven wheel ensure that the chain 22 is below the road surface joint 11. At the same time, a number of scrapers 23 are provided on the chain 22;

[0043] When the control module 4 instructs the drainage module 2 to start, the driving motor drives the chain 22 and a number of scrapers 23 thereon to continuously pass under the road surface joint 11. When the water flow rate in the road surface joint 11 and the water guide cavity 12 into the drainage channel 13 is relatively slow, the upper scraper 23 continuously deflects the water in the water guide cavity 12 to both sides of the water guide cavity 12 to assist in drainage.

[0044] To reduce the resistance when the scraper 23 deflects water, an arc-shaped edge is provided at one end of any scraper 23 away from the chain 22, and the thickness of the arc-shaped edge gradually narrows. At this time, an arc-shaped cutting edge is formed at one end of the scraper 23 away from the chain 22, and the resistance is reduced when deflecting the accumulated water.

[0045] Any of the scrapers 23 is provided with an angle adjuster, which is used to adjust the angle between the scraper 23 and the chain 22. The angle adjuster is communicatively connected to the control module 4. When the intensity of the laser signal received by the laser receiver 34 is lower than the standard value, the control module 4 instructs the angle adjuster to increase the angle between the scraper 23 and the chain 22; when the intensity of the laser signal received by the laser receiver 34 is higher than the standard value, the control module 4 instructs the angle adjuster to lower the angle between the scraper 23 and the chain 22.

[0046] The working principle and use process of the present invention:

[0047] When a large amount of water accumulates near the pavement joint 11, it indicates that the drainage module 2 needs to be activated. The transmitting unit 31 emits a light signal. After the light signal is reflected by the mirror surface of the water, it is emitted into the receiving unit 32 with a relatively strong light intensity. The receiving unit 32 uploads the received light intensity to the control module 4. The control module 4 determines that the light signal is strong. At this time, the control module 4 determines that there is water accumulation based on the strong light signal and sends a signal to the drainage module 2 to instruct the drainage module 2 to start.

[0048] When there is no water accumulation or only a small amount of water accumulation near the road surface joint 11, the light signal emitted by the transmitting unit 31 is reflected by a small amount of mirrors and diffusely reflected by the road surface, and then enters the receiving unit 32 with a relatively weak light intensity. The control module 4 determines that the light signal is weak. At this time, the control module 4 determines that there is no water accumulation or only a small amount of water accumulation based on the relatively strong light signal, and instructs the drainage module 2 to stop moving.

[0049] When the control module 4 instructs the drainage module 2 to start, the drive motor drives the chain 22 and the several scrapers 23 thereon to continuously pass under the pavement joint 11. When the flow rate of water in the pavement joint 11 and the water guide cavity 12 to the drainage channel 13 is slow, the scraper 23 above continuously moves the water in the water guide cavity 12 to the water guide cavities 12 on both sides to assist drainage.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An intelligent road surface drainage system, characterized in that: It includes a drainage module, a detection module and a control module. The control module is electrically connected to the drainage module and the detection module respectively. The drainage module is arranged under the road surface joint; The detection module includes a transmitting unit, a receiving unit and a raindrop detection unit. The transmitting unit is used to emit an optical signal towards the road surface joint. The receiving unit is used to receive the optical signal and send the receiving situation to the control module. The control module judges whether there is water accumulation according to the receiving situation of the receiving unit. The control module is used to judge whether raindrops are detected according to the raindrop detection unit. When any one of the judgment results is yes, the control module instructs the drainage module to start; The raindrop detection unit includes a laser emitter and a laser receiver. The laser emitter and the laser receiver are respectively arranged on both sides of the road surface joint. The laser emitter is arranged towards the laser receiver. The laser receiver is used to receive the laser emitted by the laser emitter and upload the receiving result to the control module. The control module judges whether there are raindrops according to the receiving result; The drainage module includes a driving wheel, a driven wheel and a chain tensioned on the driven wheel and the driving wheel. A plurality of scrapers are arranged on the chain; One end of any scraper away from the chain is provided with an arc-shaped edge, and the thickness of the arc-shaped edge gradually narrows; Any scraper is provided with an angle adjuster. The angle adjuster is used to adjust the included angle between the scraper and the chain. The angle adjuster is communicatively connected to the control module. When the intensity of the laser signal received by the laser receiver is lower than the standard value, the control module instructs the angle adjuster to increase the angle between the scraper and the chain. When the intensity of the laser signal received by the laser receiver is higher than the standard value, the control module instructs the angle adjuster to decrease the angle between the scraper and the chain.

2. The intelligent road surface drainage system according to claim 1, wherein: The control module is electrically connected to an energy module. The energy module includes a solar panel and a battery pack that are electrically connected to each other. The solar panel is used to supply power to the battery pack. The battery pack is used to supply power to the detection module and the drainage module.

3. The intelligent road surface drainage system according to claim 2, characterized in that: When the control module judges that there are raindrops, it instructs the laser emitter to increase the power and re-judges whether there are raindrops.

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