Road and bridge collapse warning system

Abstract

The invention provides a road and bridge collapse warning system, which comprises a plurality of collapse warning devices and a collapse judgment device, and is characterized in that each collapse warning device comprises a sensor capable of sensing at least one of the vibration condition and the inclination condition of the collapse warning device; the processor is configured to send the sensor data generated by the sensor to the collapse judgment device, receive a collapse warning instruction indicating that road and bridge collapse occurs in the road and bridge areas corresponding to the plurality of collapse warning devices from the collapse judgment device, and give out an auditory or visual collapse warning signal in response to the collapse warning instruction; the collapse judgment device is configured to receive sensor data from the plurality of collapse warning devices and judge whether road and bridge collapse occurs in the road and bridge areas corresponding to the plurality of collapse warning devices based on the received sensor data; and when it is judged that road and bridge collapse occurs in the road and bridge areas corresponding to the plurality of collapse warning devices, a collapse warning instruction is sent to the plurality of collapse warning devices.

Description

Technical Field

[0001] The present invention relates to the fields of Internet of Things and sensors, and particularly to a road and bridge collapse warning system. Background Art

[0002] After a road and bridge collapse or landslide accident occurs and before the traffic police arrive at the accident scene, due to the lack of warning means, oncoming vehicles often cannot stop in time and fall into the collapse or landslide, resulting in heavy casualties. Especially at night, due to the poor visual environment of the road surface, the casualties are even more obvious. The existing road and bridge collapse warning systems use single-point sensors to link warning devices to provide audible and visual warnings at the scene of a collapse or landslide accident. However, single-point sensors usually can only monitor the situation in a very small area. When the location of the collapse or landslide accident just does not happen to be near the sensor, false alarms are likely to occur. In addition, single-point sensors may trigger false alarms for some reasons when there is no road and bridge collapse or landslide accident. Summary of the Invention

[0003] According to an embodiment of the present invention, a road and bridge collapse warning system includes a plurality of collapse warning devices and a collapse judgment device, wherein: each collapse warning device includes a sensor capable of sensing at least one of the vibration condition and the inclination condition of the collapse warning device, is configured to send sensor data generated by the sensor to the collapse judgment device, receive a collapse warning instruction indicating that a road and bridge collapse has occurred in the road and bridge area corresponding to the plurality of collapse warning devices from the collapse judgment device, and issue an audible or visual collapse warning signal in response to the collapse warning instruction; the collapse judgment device is configured to receive sensor data from the plurality of collapse warning devices, judge whether a road and bridge collapse has occurred in the road and bridge area corresponding to the plurality of collapse warning devices based on the received sensor data, and send a collapse warning instruction to the plurality of collapse warning devices when it is determined that a road and bridge collapse has occurred in the road and bridge area corresponding to the plurality of collapse warning devices. Brief Description of the Drawings

[0004] The present invention can be better understood from the following description of the specific embodiments in conjunction with the accompanying drawings, wherein:

[0005] Figure 1 Shows a schematic block diagram of a road and bridge collapse warning system according to an embodiment of the present invention.

[0006] Figure 2 Shows Figure 1 A schematic block diagram of the collapse judgment device shown.

[0007] Figure 3 Shows Figure 1 A schematic block diagram of the collapse warning device shown. Detailed Description of the Invention

[0008] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely provided to better understand the present invention by showing examples of the present invention. The present invention is in no way limited to any specific configuration and algorithm set forth below, but covers any modification, replacement, and improvement of elements, components, and algorithms without departing from the spirit of the present invention. In the drawings and the following description, well-known structures and technologies are not shown so as to avoid unnecessarily obscuring the present invention. Additionally, it should be noted that the term "A is connected to B" used herein may mean "A is directly connected to B" or "A is indirectly connected to B via one or more other elements."

[0009] In view of one or more problems existing in the existing road and bridge collapse warning systems, a road and bridge collapse warning system according to an embodiment of the present invention is proposed. Among them, multiple sensors are used to sense whether a road and bridge collapse occurs in a certain road and bridge area, which can avoid false negatives or false positives in the situation of a road and bridge collapse or landslide accident.

[0010] Figure 1 A schematic block diagram of a road and bridge collapse warning system according to an embodiment of the present invention is shown. As Figure 1 shown, the road and bridge collapse warning system 100 includes collapse warning devices 102-1 to 102-N (N is an integer greater than 1) and a collapse judgment device 104, where: Each collapse warning device 102 among the collapse warning devices 102-1 to 102-N includes a sensor (such as a gyroscope sensor) capable of sensing at least one of the vibration condition and the tilt condition of the collapse warning device 102, and is configured to send the sensor data generated by the sensor to the collapse judgment device 104, receive a collapse warning instruction indicating that a road and bridge collapse has occurred in the road and bridge area corresponding to the collapse warning devices 102-1 to 102-N from the collapse judgment device 104, and issue an audible or visual collapse warning signal in response to the collapse warning instruction; The collapse judgment device 104 is configured to receive sensor data from the collapse warning devices 102-1 to 102-N, judge whether a road and bridge collapse has occurred in the road and bridge area corresponding to the collapse warning devices 102-1 to 102-N based on the received sensor data, and send a collapse warning instruction to the collapse warning devices 102-1 to 102-N when it is determined that a road and bridge collapse has occurred in the road and bridge area corresponding to the collapse warning devices 102-1 to 102-N.

[0011] In some embodiments, the collapse determination device 104 is configured to determine whether a vehicle has passed through the road and bridge area corresponding to each of the collapse warning devices 102-1 to 102-N based on the sensor data received from the collapse warning devices 102-1 to 102-N, and determine that a road and bridge collapse has occurred in the road and bridge area corresponding to the collapse warning devices 102-1 to 102-N when no vehicle has passed through the road and bridge area corresponding to equal to or more than a predetermined number of the collapse warning devices 102-1 to 102-N within a predetermined time duration.

[0012] In some embodiments, for each of the collapse warning devices 102-1 to 102-N, the collapse determination device 104 is configured to determine whether a vehicle has passed through the road and bridge area corresponding to the collapse warning device 102 by calibrating the sensor data received from the collapse warning device 102.

[0013] In some embodiments, for each of the collapse warning devices 102-1 to 102-N, the collapse determination device 104 is configured to pre-store the position information of the collapse warning device 102, and generate a determination signal associated with the position information of the collapse warning device 102, indicating whether a vehicle has passed through the road and bridge area corresponding to the collapse warning device 102.

[0014] In some embodiments, when it is determined that a road and bridge collapse has occurred in the road and bridge area corresponding to the collapse warning devices 102-1 to 102-N, the collapse determination device 104 is configured to send collapse report information about the road and bridge area corresponding to the collapse warning devices 102-1 to 102-N to the cloud backend. Here, the collapse determination device 104 communicates with the cloud backend through (for example) a wireless cellular backbone network. The collapse determination device 104 is implemented in (for example) a gateway.

[0015] In some embodiments, each of the collapse warning devices 102-1 to 102-N communicates with the collapse determination device 104 through (for example) an Internet of Things communication method, and is configured to send sensor data to the collapse determination device 104 according to a predetermined period.

[0016] Figure 2 shows Figure 1 a schematic block diagram of the shown collapse determination device. As Figure 2As shown, in some embodiments, the collapse determination device 104 includes a photovoltaic charge and discharge management unit 1042, a battery 1044, a cellular communication unit 1046, an arithmetic unit 1048, and an IoT communication unit 1050, where: The photovoltaic charge and discharge management unit 1042 is responsible for converting solar energy into electrical energy to charge the battery 1044; The cellular communication unit 1046 is responsible for data interaction and instruction transmission with the cloud backend through the wireless cellular backbone network; The arithmetic unit 1048 is responsible for analyzing and processing the sensor data from the collapse warning devices 102-1 to 102-N, and generating a collapse warning instruction when it is determined that a road and bridge collapse has occurred in the road and bridge areas corresponding to the collapse warning devices 102-1 to 102-N; The IoT communication unit 1050 uses wireless communication and operates in a frequency band below 1 GHz, and is responsible for sending the collapse warning instruction to the collapse warning devices 102-1 to 102-N and receiving sensor data from the collapse warning devices 102-1 to 102-N.

[0017] Figure 3 is shown Figure 1 The schematic block diagram of the collapse warning device shown. As Figure 3 As shown, in some embodiments, each of the collapse warning devices 102-1 to 102-N of the collapse warning device 102 includes a photovoltaic charge and discharge management unit 1022, a battery 1024, a gyroscope sensor 1026, an IoT communication unit 1028, and a warning execution unit 1030, where: The photovoltaic charge and discharge management unit 1022 is responsible for converting solar energy into electrical energy to charge the battery 1024; The gyroscope sensor 1026 is responsible for sensing the vibration and tilt conditions of the collapse warning device 102; The IoT communication unit 1028 uses wireless communication and operates in a frequency band below 1 GHz, and is responsible for receiving the collapse warning instruction from the collapse determination device 104 and sending sensor data to the collapse determination device 104; The warning execution unit 1030 is responsible for outputting a collapse warning signal in response to the collapse warning instruction. For example, the collapse warning signal can be a horn beep or a high-brightness or flashing light.

[0018] In some embodiments, the gyroscope sensor 1026 reports its three-axis sensor data to the collapse determination device 104 via the Internet of Things communication unit 1028 every other time period, and the collapse determination device 104 performs comprehensive statistical analysis. The collapse determination device 104 pre-saves the position information of the collapse warning devices 102-1 to 102-N, and for each collapse warning device 102 among the collapse warning devices 102-1 to 102-N, a calibration is performed on the sensor data reported by the collapse warning device 102 to generate a determination signal associated with the position information of the collapse warning device 102, indicating whether a vehicle has passed through the road and bridge area corresponding to the collapse warning device 102. Finally, a determination signal sequence indicating whether a vehicle has passed through the collapse warning devices 102-1 to 102-N is formed. For example, for any one collapse warning device 102, if a vehicle has passed through the road and bridge area corresponding to the collapse warning device, the determination signal associated with the position information of the collapse warning device, indicating whether a vehicle has passed through the road and bridge area corresponding to the collapse warning device, is equal to 1; otherwise, the determination signal is equal to 0. The collapse determination device 104 analyzes in real time the determination signal sequence indicating whether a vehicle has passed through the road and bridge areas corresponding to the collapse warning devices 102-1 to 102-N, counts the number of "0"s in the determination signal sequence, and determines that a road and bridge collapse has occurred in the road and bridge areas corresponding to the collapse warning devices 102-1 to 102-N when the number of "0"s statistically obtained in a continuous plurality of time periods exceeds a preset threshold. At this time, the collapse report information regarding the road and bridge areas corresponding to the collapse warning devices 102-1 to 102-N is reported to the cloud background, and a collapse warning instruction is sent to the collapse warning devices 102-1 to 102-N, causing the collapse warning devices 102-1 to 102-N to emit collapse warning signals.

[0019] The present invention can be implemented in other specific forms without departing from its spirit and essential features. For example, the algorithms described in specific embodiments can be modified without the system architecture departing from the basic spirit of the present invention. Therefore, the current embodiments are regarded as exemplary in all aspects rather than restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and all changes falling within the meaning and equivalents of the claims are thus included in the scope of the present invention.

Claims

1. A road and bridge collapse warning system, comprising a plurality of collapse warning devices and a collapse judgment device, wherein: Each of the plurality of collapse warning devices comprises a sensor capable of sensing at least one of a vibration condition and a tilt condition of the collapse warning device, and is configured to send sensor data generated by the sensor to the collapse judgment device, receive a collapse warning instruction from the collapse judgment device indicating that a road bridge collapse has occurred in the road bridge area corresponding to the plurality of collapse warning devices, and issue an audible or visual collapse warning signal in response to the collapse warning instruction; The collapse judgment device is configured to receive sensor data from the multiple collapse warning devices, judge whether a road or bridge collapse occurs in the road or bridge area corresponding to the multiple collapse warning devices based on the received sensor data, and send the collapse warning instruction to the multiple collapse warning devices when it is determined that a road or bridge collapse occurs in the road or bridge area corresponding to the multiple collapse warning devices.

2. The road and bridge collapse warning system according to claim 1, wherein: The collapse judgment device is further configured to judge whether there is a vehicle passing through the road and bridge area corresponding to each collapse warning device among the multiple collapse warning devices based on the received sensor data, and to judge that a road or bridge collapse occurs in the road or bridge area corresponding to the multiple collapse warning devices when no vehicle passes through the road or bridge area corresponding to a number of collapse warning devices equal to or greater than a predetermined number among the multiple collapse warning devices within a predetermined time period.

3. The road and bridge collapse warning system according to claim 1, wherein: The collapse judgment device is further configured to judge, for each collapse warning device among the plurality of collapse warning devices, whether a vehicle is passing through a road or bridge area corresponding to the collapse warning device by calibrating sensor data received from the collapse warning device.

4. The road and bridge collapse warning system according to claim 1, wherein: The collapse judgment device is further configured to pre-save the location information of each collapse warning device among the multiple collapse warning devices, and generate a determination signal associated with the location information of the collapse warning device, indicating whether a vehicle is passing through the road and bridge area corresponding to the collapse warning device.

5. The road and bridge collapse warning system according to claim 1, wherein: Each of the plurality of collapse warning devices is further configured to send the sensor data to the collapse determination device at a predetermined period.

6. The road and bridge collapse warning system according to claim 1, wherein: The sensor is a gyro sensor.

7. The road and bridge collapse warning system according to claim 1, wherein: Each collapse warning device among the multiple collapse warning devices communicates with the collapse judgment device via an Internet of Things communication method.

8. The road and bridge collapse warning system according to claim 7, wherein: The Internet of Things communication method is a wireless communication method in the frequency band below 1 GHz.

9. The road and bridge collapse warning system according to claim 1, wherein: The collapse judgment device is further configured to send collapse report information about the road and bridge areas corresponding to the multiple collapse warning devices to the cloud background when it is determined that a road or bridge collapse occurs in the road or bridge areas corresponding to the multiple collapse warning devices.

10. The road and bridge collapse warning system according to claim 9, wherein: The collapse judgment device and the cloud backend communicate with each other via a wireless cellular backbone network.

11. The road and bridge collapse warning system according to claim 1, wherein: The collapse judgment device is implemented in the gateway.

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