Rapid alarm system for beam falling caused by collision of pier

Abstract

The utility model relates to a rapid alarm system for beam falling caused by collision of a pier, and belongs to the field of bridge monitoring. The system comprises a vibration sensor, a signal receiver, an alarm device, a communication device and a weak-current power-on cable arranged at the bottom of a bridge in a penetrating mode. The weak-current power-on cable and the vibration sensor are both connected with the signal receiver, the weak-current power-on cable generates a circuit break signal due to breakage when a beam falling accident occurs, the circuit break signal is received by the signal receiver, and meanwhile, the vibration sensor detects a bridge vibration signal in real time and transmits the bridge vibration signal to the signal receiver. The signal receiver is respectively connected with the alarm device and the communication device, when a beam falling accident occurs, the signal receiver triggers the alarm device to warn vehicles on the bridge floor, and meanwhile, the communication device informs a remote monitoring center of the accident. The system can transmit beam falling accident information in real time, ensures that relevant departments can respond timely, and avoids accident expansion; the method is low in cost, can be used day and night and can be used in large area.

Description

Technical Field

[0001] The utility model belongs to the field of bridge monitoring and relates to a rapid alarm system for bridge piers that are hit and cause beams to fall. Background Art

[0002] As a crucial transportation hub, bridge safety is paramount. However, when subjected to external forces, such as vehicle collisions, natural disasters, or vandalism, bridge support structures can shift or become significantly damaged, potentially leading to bridge deck collapse. In such situations, prompting vehicles closest to the fallen beam to stop immediately becomes crucial to prevent a series of collapses and protect lives and property.

[0003] Current warning systems primarily focus on quickly notifying bridge operators, who then respond by taking measures such as closing the bridge or rerouting traffic. However, this process often involves a delay, typically taking around half an hour. During this time, oncoming vehicles may not receive the warning information in a timely manner, leading to accidents. Therefore, existing warning systems are significantly inadequate in quickly and simultaneously notifying operators and oncoming vehicles. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a rapid alarm system for bridge piers being hit and causing beams to fall, so as to simultaneously notify bridge management personnel and vehicles passing through the bridge deck, and avoid accidents in which vehicles on the bridge deck fall into the water.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0006] A rapid alarm system for bridge piers caused by impact and resulting in beam fall comprises a vibration sensor, a signal receiver, an alarm device, a communication device and a weak current power cable laid through the bottom of the bridge.

[0007] The weak-current power cable and the vibration sensor are both connected to the signal receiver. When a beam falls, the weak-current power cable breaks, generating a circuit breaker signal. This circuit breaker signal is received by the signal receiver. Simultaneously, the vibration sensor detects the bridge vibration signal in real time and transmits it to the signal receiver. The signal receiver is connected to the alarm device and communication device, respectively. When a beam falls, the signal receiver triggers the alarm device to alert vehicles on the bridge deck and simultaneously notifies the remote monitoring center of the incident via the communication device.

[0008] Furthermore, the alarm device includes an alarm projection device and an alarm sounding device respectively connected to the signal generator.

[0009] Among them, the alarm projection device and the alarm sounding device are arranged in pairs, and a pair of the alarm projection device and the alarm sounding device are arranged at a certain interval on the bridge deck.

[0010] Furthermore, the weak-current power cable is powered by an independent weak-current DC power supply, and the vibration sensor, signal receiver, alarm device and communication device are powered by another power supply.

[0011] The beneficial effects of the present invention are:

[0012] 1) The utility model transmits information about beam-falling accidents in real time, ensuring that bridge management departments and emergency departments can take timely countermeasures to prevent beam-falling accidents from causing further losses.

[0013] 2) The utility model uses a combination of projection and sound broadcasting to effectively warn vehicles on the bridge, thus effectively preventing vehicles from falling into the water;

[0014] 3) The utility model uses the disconnection signal of the energized cable and the vibration signal of the vibration sensor for collaborative verification to avoid false triggering of alarms and resulting in waste of resources;

[0015] 4) The utility model has low cost, can be used both day and night, and can be adopted over a large area.

[0016] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0018] Figure 1 This is a structural block diagram of the rapid alarm system described in the present utility model;

[0019] Figure 2 This is a schematic diagram of the deployment of the rapid alarm system described in the utility model on a bridge. DETAILED DESCRIPTION

[0020] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0021] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0022] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] This utility model proposes a low-cost, day and night use, and large-scale use of the rapid alarm system for detecting falling beams. Figure 1 As shown, it includes a weak-current power cable, a vibration sensor, a signal receiver, an alarm device, and a communication device. The weak-current power cable and the vibration sensor are both connected to the signal receiver, which is in turn connected to the alarm device and the communication device, respectively. The weak-current power cable is powered by a separate weak-current DC power supply. The vibration sensor, signal receiver, alarm device, and communication device are powered by another power source, which can be sourced from the mains in urban areas or from a combination of solar energy and batteries in rural or mountainous areas. The alarm device also includes an alarm projection device and an alarm sounding device. The signal receiver utilizes a control device with data processing and communication functions, such as a single-chip microcomputer based on the STM32F429IGT6 chip.

[0024] like Figure 2 The figure shows the deployment of the present invention on a bridge. The weak-current power cables are laid at the bottom of the bridge and run through it. The alarm projection device and the alarm sounding device are paired, with each pair spaced a certain distance apart on the bridge deck. Furthermore, the signal receiver and communication device are located at the same side of the bridgehead.

[0025] The working principle of this utility model is as follows:

[0026] In the event of a beam fall, the weak-current cable breaks, causing a circuit breaker. Or, when a bridge is struck by a ship, the impact causes the cable to break, causing a circuit breaker. The circuit breaker signal is received by the signal receiver.

[0027] Therefore, after the system is powered on, the signal receiver determines whether a beam-falling accident has occurred based on the received signals: if only the disconnection signal of the weak-current power cable or the signal of the vibration sensor is received, it is determined that no beam-falling accident has occurred. Among them, if only the disconnection signal is received, the weak-current power cable may be broken due to other reasons, and the bridge management department will be notified through the communication device for inspection and maintenance; if both the disconnection signal and the vibration signal are received, it is determined that a beam-falling accident has occurred;

[0028] After a beam falling accident occurs, the signal receiver activates the alarm device and sends a signal to the communication device at the same time;

[0029] The alarm projection device projects the words "landslide, stop" onto the front and rear roads through strong light projection. At the same time, the alarm sound device repeatedly broadcasts the "landslide, stop" warning to promptly inform the drivers closest to the accident site to stop immediately; the communication device sends an accident notification to the bridge management department / emergency department, so that the bridge management department / emergency department will go to the scene to evacuate stranded vehicles and close the bridge for emergency repairs.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A rapid alarm system for bridge piers being hit and beams falling, characterized by: The system includes a vibration sensor, a signal receiver, an alarm device, a communication device, and a low-voltage power cable laid through the bottom of the bridge; the low-voltage power cable and the vibration sensor are both connected to the signal receiver; the signal receiver is respectively connected to the alarm device and the communication device; the alarm device is laid on the bridge deck.

2. The rapid alarm system according to claim 1, characterized in that: The alarm device comprises an alarm projection device and an alarm sounding device respectively connected to the signal receiver.

3. The rapid alarm system according to claim 2, characterized in that: The alarm projection device and the alarm sounding device are arranged in pairs, and a pair of the alarm projection device and the alarm sounding device are arranged at a certain interval on the bridge deck.

4. The rapid alarm system according to claim 1, characterized in that: The weak-current power cable is powered by an independent weak-current DC power supply.

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