Bridge state safety detection device

Abstract

The utility model relates to a kind of bridge state safety detection device, comprising: voltage conversion module, detection line, relay, settlement sensor, control module and alarm module, the contact state end of voltage conversion module, relay, settlement sensor and alarm module are connected with the control module respectively;Control module is in the contact state end of detection relay by attraction state conversion for release state, and simultaneously when the settlement data exceeds preset threshold, alarm signal is generated;The alarm module is used to alarm prompt after receiving alarm signal.The utility model is when detecting that detection line is broken and settlement data exceeds two conditions of preset threshold, only alarm, prevent the situation of false alarm occurs.Simultaneously generate alarm signal, to protect past vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of transportation technology, specifically relating to a bridge condition safety detection device. Background Technology

[0002] As a crucial component of transportation infrastructure, the structural safety of bridges directly impacts the safety of people's lives and property and the smooth operation of transportation networks. With the increasing age of bridges and the influence of factors such as extreme weather and overloading, bridges may experience structural damage, settlement, displacement, or even collapse. Therefore, real-time and accurate monitoring and early warning of bridge conditions are of paramount importance.

[0003] Currently, traditional bridge monitoring methods mainly rely on regular manual inspections and fixed-point sensor monitoring. Manual inspections suffer from low efficiency, strong subjectivity, and the inability to provide real-time early warnings; while fixed-point sensor monitoring can achieve continuous monitoring, it usually focuses on the measurement of a single physical quantity, making it difficult to comprehensively reflect changes in the overall condition of the bridge structure, resulting in false alarms. Utility Model Content

[0004] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a bridge condition safety detection device to solve the problems of the inefficient mode that relies on manual periodic inspection and fixed-point sensor monitoring, high cost, and inability to achieve real-time monitoring and accurate alarm.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a bridge condition safety detection device, comprising: a voltage conversion module, a detection line, a relay, a settlement sensor, a control module, and an alarm module, wherein the voltage conversion module, the contact status terminal of the relay, the settlement sensor, and the alarm module are respectively connected to the control module;

[0006] The voltage conversion module is used to regulate the voltage fluctuations in the received power supply voltage and output the regulated voltage to the relay.

[0007] The detection line is used to be laid on the bridge structure. One end of the detection line receives the power supply voltage, and the other end is connected to the input terminal of the voltage conversion module, so that the power supply voltage, the voltage conversion module and the coil of the relay form a physical closed loop spanning the bridge space.

[0008] The relay is controlled by the on / off state of the physical closed circuit. When the physical closed circuit is opened, the contact state of the relay changes from the closed state to the released state.

[0009] The settlement sensor is used to detect the settlement data of the bridge;

[0010] The control module is used to generate an alarm signal when the contact state of the detection relay changes from the engaged state to the released state, and at the same time the settlement data exceeds a preset threshold.

[0011] The alarm module is used to provide an alarm prompt after receiving an alarm signal.

[0012] Furthermore, it also includes:

[0013] The interception module is used to intercept passing vehicles.

[0014] The interception module is connected to the control module.

[0015] Furthermore, it also includes:

[0016] The main power module is used to connect to the mains power supply;

[0017] Backup power module, including solar panels and energy storage module;

[0018] Both the main power module and the backup power module are used to output power voltage;

[0019] The voltage switching module is used to switch to the backup power module when the main power module experiences a power outage or abnormality, so as to use the backup power module to supply power to the bridge condition safety detection device.

[0020] Furthermore, it also includes:

[0021] Lightning protection modules are used to discharge lightning current and prevent lightning strikes.

[0022] The lightning protection module is connected to the main power module or the access terminal of the detection line.

[0023] Furthermore, it also includes:

[0024] A displacement sensor is used to detect the displacement data of the bridge, and the displacement sensor is connected to the control module;

[0025] The control module generates an alarm signal when the contact state of the detection relay changes from the engaged state to the released state, and at the same time the settlement data or the displacement data exceeds a preset threshold.

[0026] Furthermore, it also includes:

[0027] The signal verification module is used to verify the validity of the input electrical signal;

[0028] The input terminal of the signal verification module is connected to the output terminal of the voltage conversion module, and the output terminal of the signal verification module is connected to the coil of the relay.

[0029] Furthermore, the control module employs a controller.

[0030] Furthermore, the alarm module employs an audible and visual alarm.

[0031] Furthermore, it also includes a protective box, in which the voltage conversion module, detection line, relay, settlement sensor, control module and alarm module are all housed.

[0032] Furthermore, the inner surface of the protective box is made of insulating and flame-retardant material.

[0033] The beneficial effects that can be achieved by adopting the above technical solution include:

[0034] This application provides a bridge condition safety detection device that generates an alarm signal when a bridge breaks or collapses due to a natural disaster, such as when the detection line breaks and forms an open circuit, or when settlement data exceeds a preset threshold, to protect passing vehicles. Furthermore, the alarm is only triggered when both conditions are detected (detection line breakage and settlement data exceeding the preset threshold) to prevent false alarms. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of a bridge condition safety detection device according to the present invention. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] The following describes a specific bridge condition safety detection device provided in an embodiment of this application, with reference to the accompanying drawings.

[0039] like Figure 1As shown, this utility model provides a bridge condition safety detection device, including: a voltage conversion module, a detection line, a relay, a settlement sensor, a control module, and an alarm module. The voltage conversion module, the contact status terminal of the relay, the settlement sensor, and the alarm module are respectively connected to the control module.

[0040] The voltage conversion module is used to regulate the voltage fluctuations in the received power supply voltage and output the regulated voltage to the relay.

[0041] The detection line is used to be laid on the bridge structure. One end of the detection line receives the power supply voltage, and the other end is connected to the input terminal of the voltage conversion module, so that the power supply voltage, the voltage conversion module and the coil of the relay form a physical closed loop spanning the bridge space.

[0042] The relay is controlled by the on / off state of the physical closed circuit. When the physical closed circuit is opened, the contact state of the relay changes from the closed state to the released state.

[0043] The settlement sensor is used to detect the settlement data of the bridge;

[0044] The control module is used to generate an alarm signal when the contact state of the detection relay changes from the engaged state to the released state, and at the same time the settlement data exceeds a preset threshold.

[0045] The alarm module is used to provide an alarm prompt after receiving an alarm signal.

[0046] The control module in this application may be a controller.

[0047] The alarm module can be equipped with an audible and visual alarm, which can simultaneously issue an audible warning and a flashing light warning.

[0048] This application provides a bridge condition safety detection device that fixes a detection line to a critical part of the bridge, such as the connection between the pier and the bridge deck. When the bridge experiences excessive relative displacement, cracking, or deformation, the detection line will be directly pulled or torn off. Once the detection line breaks, the physical closed circuit consisting of a power supply, a voltage conversion module, and a relay coil is broken. The relay coil loses power, and its contact state immediately changes from attracted to dropped. At this time, the relay sends a signal to the control module. Simultaneously, settlement sensors are installed at critical support locations such as piers and abutments. The device continuously and accurately measures the vertical settlement or uplift of the bridge foundation, and the control module compares the real-time data with a preset threshold. If the real-time data exceeds the preset threshold, it indicates that the bridge foundation is undergoing measurable movement that may affect safety. In this application, the detection line breaking (from attracted to dropped) indicates that the detection line has broken. When the settlement data exceeds the preset threshold, it indicates that the bridge foundation is unstable. When the control module receives both signals simultaneously, it generates an alarm signal. The alarm module then sounds an alarm upon receiving the alarm signal. This application only generates an alarm signal when the detection line breaks and the settlement data simultaneously exceeds a preset threshold, greatly improving the reliability and accuracy of the alarm. This application avoids false alarms when the detection line is broken by vehicles, chewed by small animals, or due to aging and corrosion. It also avoids false alarms when settlement data briefly and slightly exceeds the preset threshold due to temperature changes, short-term geological activity, or minor sensor drift.

[0049] In some embodiments, the bridge condition safety detection device provided in this application further includes:

[0050] The interception module is used to intercept passing vehicles.

[0051] The interception module is connected to the control module.

[0052] In this application, the interception module can be a device connected to the control module capable of intercepting vehicles. For example, it could be a rising road barrier system controlled by the control module. In this application, the control module continuously monitors the relay contact status and settlement data. When both the relay contact status and settlement data are abnormal, the control module sends an interception signal to the interception module, which then performs an interception action. For example, setting the traffic light to a constant red state.

[0053] In some embodiments, it also includes:

[0054] The main power module is used to connect to the mains power supply;

[0055] Backup power module, including solar panels and energy storage module;

[0056] Both the main power module and the backup power module are used to output power voltage;

[0057] The voltage switching module is used to switch to the backup power module when the main power module experiences a power outage or abnormality, so as to use the backup power module to supply power to the bridge condition safety detection device.

[0058] In this application, the main power module can be standard AC mains power. The backup power module can be a solar panel or an energy storage module. The solar panel can be installed on top of the bridge monitoring pole or on an unobstructed side of the bridge to convert solar energy into electrical energy. Its power output needs to be calculated to ensure sufficient energy supply to the energy storage module even during consecutive cloudy or rainy days. The energy storage module can be a battery pack. This battery pack must be able to support the entire bridge condition safety monitoring device for at least 7-15 days without any solar charging. The voltage switching module uses an automatic transfer switch or a seamless switching circuit composed of MOSFETs / relays. The voltage switching module sends the current power status to the control module. When the control module receives a low backup power signal, such as when the battery level is below 30%, it will use its remaining communication capabilities to send an alarm to the monitoring center indicating low backup power and urgent need for maintenance. When the power level is extremely low, for example, below 15%, the bridge condition safety monitoring device may enter a deep sleep protection mode, retaining only the most basic circuit monitoring, shutting down all unnecessary peripherals, and submitting a final status report, awaiting emergency charging to maximize battery protection.

[0059] In some embodiments, the bridge condition safety detection device provided in this application further includes:

[0060] Lightning protection modules are used to discharge lightning current and prevent lightning strikes.

[0061] The lightning protection module is connected to the main power module or the access terminal of the detection line.

[0062] It is understandable that lightning strikes can damage bridge condition safety monitoring devices. When lightning current is discharged nearby, the powerful transient electromagnetic field can induce surge voltages of several thousand volts in any conductor circuit. The lightning protection module in this application can be a surge protector, discharging lightning current and preventing lightning strikes. By incorporating a lightning protection module, this application prevents problems such as sensor false alarms, control module crashes, and power module damage caused by lightning surges, ensuring the accuracy of safety criteria and the availability of the device itself. It avoids system paralysis and data loss after thunderstorms, guaranteeing the long-term continuity and effectiveness of monitoring data.

[0063] In some embodiments, it also includes:

[0064] A displacement sensor is used to detect the displacement data of the bridge, and the displacement sensor is connected to the control module;

[0065] The control module generates an alarm signal when the contact state of the detection relay changes from the engaged state to the released state, and at the same time the settlement data or the displacement data exceeds a preset threshold.

[0066] In this application, displacement sensors expand the monitoring dimensions of bridges from vertical settlement to horizontal or three-dimensional displacement, enabling more comprehensive and earlier detection of abnormal bridge deformation and further improving the comprehensiveness and sensitivity of early warning systems. The displacement sensors can be high-precision GNSS receivers, installed on piers and main beams to measure their tilt angles. Through geometric relationships, angle changes can be converted into horizontal displacement at the pier top or beam end. By adding displacement sensors, this application allows for simultaneous viewing of settlement and displacement data in the backend, helping engineers quickly determine the type of disaster, such as foundation subsidence or superstructure slippage, guiding emergency response.

[0067] This application achieves more accurate detection and more reliable response to complex bridge defects through richer monitoring data and more refined logical judgment.

[0068] In some embodiments, the bridge condition safety detection device provided in this application further includes:

[0069] The signal verification module is used to verify the validity of the input electrical signal;

[0070] The input terminal of the signal verification module is connected to the output terminal of the voltage conversion module, and the output terminal of the signal verification module is connected to the coil of the relay.

[0071] In this application, the signal verification module prevents relay malfunctions caused by abnormal front-end voltage or interference, thereby completely eliminating false alarms or missed detections caused by circuit problems in the bridge condition safety detection device. In this application, the signal verification module is inserted between the voltage conversion module and the relay coil, ensuring that only a fully compliant power signal representing true continuity of the detection line can be delivered to the relay coil to reliably drive it to engage.

[0072] In this application, the signal verification module continuously monitors the voltage value output by the voltage conversion module. Only when this voltage is consistently higher than a preset pull-in threshold will the comparator output a valid signal, allowing power to flow. For example, for a 24V relay, the threshold is set to 20V before the comparator outputs a valid signal. If the voltage is lower than this threshold, it is considered invalid, and the output is cut off. Alternatively, a valid voltage signal must be sustained for a certain period of time to be considered a stable signal, thereby driving subsequent circuitry.

[0073] In some embodiments, the system further includes a protective box, in which the voltage conversion module, detection line, relay, settlement sensor, control module, and alarm module are all housed.

[0074] The inner surface of the protective box is made of insulating and flame-retardant material.

[0075] In this application, the protective box body is made of PC highly flame-retardant material, and the inner surface of the intelligent protective box is provided with insulating flame-retardant rubber to prevent the protective box from being burned when the circuit in the above embodiment malfunctions, or even causing a serious fire.

[0076] In summary, the bridge condition safety detection device provided by this utility model includes a voltage conversion module, a detection line, a relay, a settlement sensor, a control module, and an alarm module. It can generate an alarm signal when the bridge encounters a natural disaster causing fracture or collapse, when the detection line breaks and forms an open circuit, and when the settlement data exceeds a preset threshold, to protect passing vehicles. Furthermore, the alarm is only triggered when both conditions are detected (detection line breakage and settlement data exceeding the preset threshold) to prevent false alarms.

[0077] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A bridge condition safety detection device, characterized in that, include: The system includes a voltage conversion module, a detection line, a relay, a settlement sensor, a control module, and an alarm module. The voltage conversion module, the contact status terminals of the relay, the settlement sensor, and the alarm module are all connected to the control module. The voltage conversion module is used to regulate the voltage fluctuations in the received power supply voltage and output the regulated voltage to the relay. The detection line is used to be laid on the bridge structure. One end of the detection line receives the power supply voltage, and the other end is connected to the input terminal of the voltage conversion module, so that the power supply voltage, the voltage conversion module and the coil of the relay form a physical closed loop spanning the bridge space. The relay is controlled by the on / off state of the physical closed circuit. When the physical closed circuit is opened, the contact state of the relay changes from the closed state to the released state. The settlement sensor is used to detect the settlement data of the bridge; The control module is used to generate an alarm signal when the contact state of the detection relay changes from the engaged state to the released state, and at the same time the settlement data exceeds a preset threshold. The alarm module is used to provide an alarm prompt after receiving an alarm signal.

2. The bridge condition safety detection device according to claim 1, characterized in that, Also includes: The interception module is used to intercept passing vehicles. The interception module is connected to the control module.

3. The bridge condition safety detection device according to claim 1, characterized in that, Also includes: The main power module is used to connect to mains power. Backup power module, including solar panels and energy storage module; Both the main power module and the backup power module are used to output power voltage; The voltage switching module is used to switch to the backup power module when the main power module experiences a power outage or abnormality, so as to use the backup power module to supply power to the bridge condition safety detection device.

4. The bridge condition safety detection device according to claim 3, characterized in that, Also includes: Lightning protection modules are used to discharge lightning current and prevent lightning strikes. The lightning protection module is connected to the main power module or the access terminal of the detection line.

5. The bridge condition safety detection device according to claim 1, characterized in that, Also includes: A displacement sensor is used to detect the displacement data of the bridge, and the displacement sensor is connected to the control module; The control module generates an alarm signal when the contact state of the detection relay changes from the engaged state to the released state, and at the same time the settlement data or the displacement data exceeds a preset threshold.

6. The bridge condition safety detection device according to claim 1, characterized in that, Also includes: The signal verification module is used to verify the validity of the input electrical signal; The input terminal of the signal verification module is connected to the output terminal of the voltage conversion module, and the output terminal of the signal verification module is connected to the coil of the relay.

7. The bridge condition safety detection device according to any one of claims 1 to 6, characterized in that, The control module uses a controller.

8. The bridge condition safety detection device according to claim 7, characterized in that, The alarm module uses an audible and visual alarm.

9. The bridge condition safety detection device according to claim 1, characterized in that, Also includes: The voltage conversion module, detection line, relay, sedimentation sensor, control module, and alarm module are all housed within the protective box.

10. The bridge condition safety detection device according to claim 9, characterized in that, The inner surface of the protective box is made of insulating and flame-retardant material.

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