Bridge floor icing early warning system

Abstract

The utility model relates to the field of bridge floor early warning, in particular to a bridge floor icing early warning system, which comprises a microcontroller, and a measuring module, a rainfall monitoring module, a wireless communication module, a camera, a power supply module and an automatic spraying module which are electrically connected with the microcontroller, the measuring module comprises a temperature sensor, a humidity sensor, a wind speed measuring device and an air pressure measuring device, the automatic spraying module comprises a storage tank and a driving pump connected with the storage tank and is connected with a pipeline through the driving pump, the tail end of the pipeline is connected with a nozzle, and the pipeline is further provided with a control valve. The power supply module comprises a main power supply module and a standby power supply module, environment data and rainfall conditions are comprehensively monitored, the accuracy of icing early warning is improved, quick response can be achieved, an anti-freezing solution can be sprayed in advance, and the bridge deck icing risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge deck warning, in particular to a bridge deck icing warning system. Background Art

[0002] Icing on bridge decks is an important factor affecting traffic safety on bridges. Icing on bridge decks can reduce the friction between vehicle tires and the bridge deck, causing vehicles to lose control, skid or rear-end, leading to traffic accidents and affecting normal road traffic. It can also threaten the lives of drivers and passengers.

[0003] There are many factors that affect the icing of the bridge deck. Among them, environmental parameters such as temperature, humidity, and wind speed will have an impact on the icing of the bridge deck. Different rainfall types such as sleet, rain, snow and other precipitation forms can also easily cause icing on the bridge deck under low temperature conditions.

[0004] It can provide early warning of bridge deck icing, which is convenient for traffic management departments to respond quickly and take preventive measures in time to reduce traffic accidents caused by icing. Although the existing technology can predict the trend of bridge deck icing to a certain extent, the accuracy of the warning needs to be improved due to the complexity and variability of environmental factors. At the same time, under extreme weather conditions, the bridge deck freezes very quickly, and the early warning system needs to respond in a short time. The existing technology often has a certain delay and cannot reflect the situation of bridge deck icing in real time. Utility Model Content

[0005] The utility model provides a bridge deck icing early warning system.

[0006] The technical solution of this utility model is as follows:

[0007] A bridge deck icing warning system includes a microcontroller, a measuring module electrically connected to the microcontroller, a rainfall monitoring module, a wireless communication module, a camera, a power module and an automatic spraying module.

[0008] The measuring module includes a temperature sensor, a humidity sensor, a wind speed measuring device and an air pressure measuring device, all of which are electrically connected to the microcontroller.

[0009] The automatic spraying module is arranged on both sides of the bridge deck, and includes a storage tank and a driving pump connected thereto, and a pipeline is connected through the driving pump, and a nozzle is connected to the end of the pipeline. A control valve is also arranged on the pipeline, and the control valve and the driving pump are both electrically connected to the microcontroller.

[0010] The device comprises a driving pump, a storage tank, a pipeline, a control valve arranged on the pipeline and a nozzle connected to the end of the pipeline. The driving pump and the control valve are both electrically connected to a microcontroller.

[0011] The power supply module includes a main power supply module and a backup power supply module.

[0012] Specifically, the main power supply module includes an input interface, a filter, a voltage stabilizer and a power distribution unit which are electrically connected in sequence, and the backup power supply module is a battery pack.

[0013] Preferably, the wind speed measuring device is a three-cup anemometer.

[0014] Preferably, the air pressure measuring device is a piezoelectric air pressure sensor.

[0015] Specifically, the piezoelectric air pressure sensor includes two metal electrodes and a piezoelectric crystal arranged between the two metal electrodes.

[0016] Preferably, the rainfall monitoring module is a JD-05S tipping bucket rainfall sensor.

[0017] Preferably, the microcontroller is an ARM microcontroller, provided with an ADC interface SPI serial interface.

[0018] Specifically, the wireless communication module is provided with a UART interface, an SPI serial interface and a Wi-Fi interface.

[0019] Furthermore, it also includes a display module, which is an LED display screen and is electrically connected to the microcontroller.

[0020] Furthermore, it also includes an alarm module and a data storage module electrically connected to the microcontroller, and the alarm module includes an LED indicator light and a buzzer.

[0021] The beneficial effects of the utility model are:

[0022] (1) The utility model is a bridge deck icing warning system that comprehensively measures multiple environmental parameters such as temperature, humidity, wind speed, wind direction, and air pressure, and is integrated with a rainfall monitoring module to take precipitation factors that affect bridge deck icing into account. It can monitor and respond quickly to bridge deck icing conditions under different climatic conditions in real time, improve the accuracy and reliability of bridge deck icing warnings, issue warning information in a timely manner, and improve road traffic safety.

[0023] (2) An automatic spraying module is integrated. After receiving the command from the remote monitoring center, the automatic spraying device is activated to spray antifreeze or snow removal agent on the bridge deck in advance to reduce the possibility of icing on the bridge deck. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0025] In the attached picture:

[0026] Figure 1 It is a structural schematic diagram of a bridge deck icing warning system in an embodiment. DETAILED DESCRIPTION

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0028] Example

[0029] This embodiment provides a bridge deck icing warning system. Figure 1 , including a microcontroller, a measuring module electrically connected to the microcontroller, a rainfall monitoring module, a wireless communication module, a camera, a power module and an automatic spraying module,

[0030] The measuring module includes a temperature sensor, a humidity sensor, a wind speed measuring device and an air pressure measuring device, all of which are electrically connected to the microcontroller.

[0031] The automatic spraying module is arranged on both sides of the bridge deck, and includes a storage tank and a driving pump connected thereto, and a pipeline is connected through the driving pump, and a nozzle is connected to the end of the pipeline. A control valve is also arranged on the pipeline, and the control valve and the driving pump are both electrically connected to the microcontroller.

[0032] The device comprises a driving pump, a storage tank, a pipeline, a control valve arranged on the pipeline and a nozzle connected to the end of the pipeline. The driving pump and the control valve are both electrically connected to a microcontroller.

[0033] The power supply module includes a main power supply module and a backup power supply module.

[0034] Specifically, in this embodiment, the microcontroller is the control center of the entire bridge deck icing warning system, responsible for receiving data transmitted by the measurement module, rainfall monitoring module, data storage module, automatic spraying module, display module, alarm module, power module and camera electrically connected to it, and transmitting the received data to the remote monitoring center via the wireless communication module, and receiving instructions from the remote monitoring center to control each functional module. The microcontroller is an ARM microcontroller, which is provided with an ADC interface SPI serial interface.

[0035] The camera is used to capture the bridge deck image in real time and transmit the bridge deck image to the microcontroller, which transmits the image data to the remote monitoring center through the wireless communication module. There are several cameras, and the shooting range of several cameras covers the entire bridge deck, which is convenient for monitoring managers to remotely understand the conditions of different areas of the bridge deck.

[0036] The measuring module is used to measure various environmental parameters that affect the icing of the bridge deck. The measuring module includes a temperature sensor, a humidity sensor, a wind speed measuring device and an air pressure measuring device, all of which are arranged above the bridge deck. The temperature sensor and the humidity sensor are fixed on the bridge deck through a bracket. The temperature sensor is used to measure the ambient temperature data in real time and transmit the temperature data to the microcontroller; the humidity sensor is used to measure the ambient humidity data in real time and transmit the humidity data to the microcontroller.

[0037] The wind speed measuring device in the measurement module is a three-cup anemometer, which is used to measure the ambient wind speed above the bridge deck. The three-cup anemometer includes three hemispherical wind cups, a rotating bracket supporting the three hemispherical wind cups, and a wind speed sensor. The wind speed sensor is electrically connected to the microcontroller. When measuring the wind speed, the three hemispherical wind cups rotate with the wind, and the wind cup rotation speed is proportional to the wind speed. The wind speed sensor converts the rotation information of the hemispherical wind cups into electrical signals and transmits them to the microcontroller.

[0038] The air pressure measuring device is a piezoelectric air pressure sensor, which is used to measure the ambient air pressure above the bridge deck. The piezoelectric air pressure sensor includes two metal electrodes and a piezoelectric crystal arranged between the two metal electrodes. When the air pressure on the bridge deck changes, the piezoelectric crystal between the two metal electrodes deforms accordingly, generating a changing electrical signal between the two metal electrodes, which is further transmitted to the microcontroller.

[0039] The rainfall monitoring module is set on the center line of the bridge deck to monitor the rainfall on the bridge deck. Rainfall under low temperature conditions can easily cause ice on the bridge deck. The rainfall monitoring module is a JD-05S tipping bucket rain sensor, which includes a collection bucket, two metering buckets under the collection bucket, a counter and a signal conversion circuit. The counter and the signal conversion circuit are both electrically connected to the microcontroller. The collection bucket collects the falling rainwater and guides the rainwater into the two metering buckets below. When the rainwater in the metering bucket reaches a certain amount, it flips. The technical device records the number of flips. The signal conversion circuit converts the number of flips into electrical signals and transmits them to the microcontroller to obtain the numerical value of rainfall.

[0040] The rainfall monitoring module and the measurement module work in coordination, taking into account precipitation conditions and environmental factors on the bridge deck. Precipitation conditions affect the wetness of the bridge deck, while environmental factors such as temperature, humidity, wind speed, and air pressure determine whether the water falling on the bridge deck freezes. The precipitation and environmental data are acquired in real time and transmitted to the remote monitoring center.

[0041] The automatic spraying module is arranged on both sides of the bridge deck, including a storage tank and a driving pump connected thereto, and a pipeline is connected through the driving pump, a nozzle is connected to the end of the pipeline, and a control valve is also arranged on the pipeline, and the control valve and the driving pump are both electrically connected to the microcontroller. The storage tank is used to store liquid or powdered solid to prevent the bridge deck from freezing. In this embodiment, it is antifreeze, and it can also be replaced with snow melting agent according to actual conditions in actual use. The storage tank is connected to the nozzle at the end through a pipeline, and there are several nozzles, which are evenly arranged on both sides of the bridge deck. After receiving the instruction sent by the remote monitoring center, the microcontroller controls the driving pump to work, driving the antifreeze in the storage tank to enter the nozzle through the pipeline and spray onto the bridge deck. At the same time, the opening of the control valve is controlled by the microcontroller to achieve accurate control of the spraying work and reduce the possibility of freezing on the bridge deck.

[0042] The power module provides a stable power supply for the bridge deck icing warning system. The power module includes a main power module and a backup power module. The main power module includes an input interface, a filter, a voltage regulator and a power distribution unit that are electrically connected in sequence. The main power module is connected to the power grid, wherein the input interface is responsible for receiving AC power from the power grid, the filter is used to eliminate high-frequency noise in the power grid, the voltage regulator is used to stabilize the voltage and output DC power, and the power distribution unit is responsible for distributing the DC power to various functional modules in the bridge deck icing warning system. The backup power module is a battery pack. When the power grid is cut off, the backup power module continues to supply power to the bridge deck icing warning system.

[0043] The wireless communication module is used for two-way communication with the remote monitoring center. It can transmit data in real time and receive instructions in real time. The wireless communication module is equipped with UART interface, SPI serial interface and Wi-Fi interface.

[0044] The system also includes a display module, which is an LED display screen and is electrically connected to the microcontroller. The display module is set in the remote monitoring center, and displays the real-time environmental data of the bridge deck and the icing state of the bridge deck through the LED display screen, so as to intuitively understand the state information of the bridge deck.

[0045] It also includes an alarm module and a data storage module electrically connected to the microcontroller, wherein the data storage module is used to record all measurement and monitoring data to provide data support for subsequent icing warnings. The alarm module includes an LED indicator and a buzzer. When the microcontroller receives an alarm command from the remote monitoring center, it sends a signal to the alarm module, the LED indicator flashes, and the buzzer sounds, providing a reminder in the form of an audible and visual alarm.

Claims

1. A bridge deck icing warning system, characterized in that: It includes a microcontroller, a measuring module electrically connected to the microcontroller, a rainfall monitoring module, a wireless communication module, a camera, a power module and an automatic spraying module. The measuring module includes a temperature sensor, a humidity sensor, a wind speed measuring device and an air pressure measuring device, all of which are electrically connected to the microcontroller. The automatic spraying module is arranged on both sides of the bridge deck, and includes a storage tank and a driving pump connected thereto, and a pipeline is connected through the driving pump, and a nozzle is connected to the end of the pipeline. A control valve is also arranged on the pipeline, and the control valve and the driving pump are both electrically connected to the microcontroller. The device comprises a driving pump, a storage tank, a pipeline, a control valve arranged on the pipeline and a nozzle connected to the end of the pipeline. The driving pump and the control valve are both electrically connected to a microcontroller. The power supply module includes a main power supply module and a backup power supply module.

2. A bridge deck icing warning system according to claim 1, characterized in that: The main power supply module comprises an input interface, a filter, a voltage stabilizer and a power distribution unit which are electrically connected in sequence, and the backup power supply module is a battery pack.

3. A bridge deck icing warning system according to claim 1, characterized in that: The wind speed measuring device is a three-cup wind speed measuring instrument.

4. The bridge deck icing warning system according to claim 1, characterized in that: The air pressure measuring device is a piezoelectric air pressure sensor.

5. A bridge deck icing warning system according to claim 4, characterized in that: The piezoelectric air pressure sensor includes two metal electrodes and a piezoelectric crystal arranged between the two metal electrodes.

6. A bridge deck icing warning system according to claim 1, characterized in that: The rainfall monitoring module is a JD-05S tipping bucket rainfall sensor.

7. The bridge deck icing warning system according to claim 1, characterized in that: The microcontroller is an ARM microcontroller, which is provided with an ADC interface SPI serial interface.

8. The bridge deck icing warning system according to claim 1, characterized in that: The wireless communication module is provided with a UART interface, an SPI serial interface and a Wi-Fi interface.

9. The bridge deck icing warning system according to claim 1, characterized in that: It also includes a display module, which is an LED display screen and is electrically connected to the microcontroller.

10. The bridge deck icing warning system according to claim 1, characterized in that: It also includes an alarm module and a data storage module electrically connected to the microcontroller, wherein the alarm module includes an LED indicator light and a buzzer.

Images