Bridge disease disaster early warning device

Abstract

The utility model discloses a bridge disease and disaster early warning device, which relates to the technical field of bridge disease and disaster early warning, and comprises a data acquisition system, a signal interlocking circuit and a signal processing circuit, the output end of the signal interlocking circuit is respectively connected with the input end of the signal transmitting system and the input end of the interlocking detection circuit, the output end of the signal transmitting system is in signal connection with the input end of the remote operation platform, and the output end of the remote operation platform is in signal control connection with the alarm device. According to the utility model, the signal interlocking circuit is used for coupling various signals to ensure the reliability of the signals, the interlocking detection circuit is used for improving the effectiveness of signal detection, and accurate early warning of bridge diseases and disasters is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge disease disaster warning, and more specifically, to a bridge disease disaster warning device. Background Art

[0002] Factors such as earthquakes, floods, super strong winds, geological instability, and overloading will cause damage to the bridge structure, resulting in phenomena such as pier collapse, beam deformation, beam dropping, and even fracture. When a bridge suffers from diseases and disasters, the continued passage of pedestrians and vehicles will inevitably cause personal injuries and property losses. Installing a disease disaster warning device on the bridge can remind pedestrians and vehicles not to enter dangerous bridges and avoid injuries.

[0003] At present, most disease disaster warning devices detect bridge diseases and disasters through single or multiple signals. The single signal detection method leads to inaccurate detection results, and the multiple signal detection methods will frequently trigger detection signals, resulting in frequent responses in remote monitoring, increasing labor costs, being unfavorable for the effective warning of bridge diseases and disasters, and also lacking means to judge the detection signals, unable to further judge the authenticity of the detection or detection errors caused by damaged acquisition equipment.

[0004] Therefore, how to propose a bridge disease disaster warning device that improves the effectiveness of signal detection through a signal interlock circuit and an interlock detection circuit and realizes accurate warning of bridge diseases and disasters is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] In view of this, the utility model provides a bridge disease disaster warning device, which improves the effectiveness of signal detection through a signal interlock circuit and an interlock detection circuit and realizes accurate warning of bridge diseases and disasters. To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bridge disease disaster warning device includes: a data acquisition system, a signal interlock circuit, an interlock detection circuit, a signal transmission system, a remote operation platform, and an alarm device. The data acquisition system is used to acquire bridge disease disaster signals. The data acquisition system includes a plurality of data acquisition subsystems. The output ends of the plurality of data acquisition subsystems are respectively connected to a plurality of input ends of the signal interlock circuit. The output end of the signal interlock circuit is respectively connected to the input end of the signal transmission system and the input end of the interlock detection circuit. The output end of the signal transmission system is signal-connected to the input end of the remote operation platform. The output end of the remote operation platform is signal-controlledly connected to the alarm device.

[0007] Optionally, the data acquisition subsystem includes a pressure sensor, a displacement sensor, and a rotation angle sensor.

[0008] Optionally, the signal interlock circuit includes: a signal acquisition circuit and a signal interlock circuit. Multiple input ends of the signal interlock circuit are connected to multiple signal acquisition circuits, and the multiple signal acquisition circuits are connected to the signal interlock circuit.

[0009] Optionally, the signal acquisition circuit includes: a pressure signal transmission circuit, a rotation angle signal transmission circuit, and a displacement signal transmission circuit corresponding to a pressure sensor, a rotation angle sensor, and a displacement sensor respectively.

[0010] The signal interlock circuit includes: a vertical force and rotation angle interlock circuit and a displacement and rotation angle interlock circuit; the vertical force and rotation angle interlock circuit includes a vertically-force signal transmission circuit and a rotation angle signal transmission circuit with parallel outputs; the displacement and rotation angle interlock circuit includes a displacement signal transmission circuit and a rotation angle signal transmission circuit with parallel outputs.

[0011] Optionally, the interlock detection circuit includes: an MCU, a discrimination component, and a discrimination circuit. One end of the discrimination component is connected to the data acquisition system, and the other end is connected to the MCU through the discrimination circuit.

[0012] Optionally, the discrimination component includes a drive circuit, an AD converter, a discriminator, and a plug-in unit. The MCU is signal-controlled and connected to the drive circuit. The AD converter is connected to the signal acquisition circuit. One end of the discriminator is connected to the AD converter, and the other end is connected to the plug-in unit through the drive circuit. The plug-in unit is connected to the discrimination circuit.

[0013] Optionally, the alarm device is an audible and visual alarm, and the audible and visual alarm is further provided with an antenna. The audible and visual alarm is signal-connected to the remote operation platform through the antenna.

[0014] Optionally, it further includes: an over-displacement power-off device, and the over-displacement power-off device is signal-connected to the alarm device.

[0015] Optionally, it further includes a solar energy collection and storage device, and the solar energy collection and storage device is respectively connected to the data acquisition system, the signal interlock circuit, the interlock detection circuit, the signal transmission system, and the alarm device.

[0016] It can be seen from the above technical solutions that, compared with the prior art, the present utility model discloses a bridge disease disaster early warning device, which has the following beneficial effects:

[0017] The present utility model provides a warning device for bridge diseases and disasters, comprising: a data acquisition system, a signal interlock circuit, an interlock detection circuit, a signal transmission system, a remote operation platform and an alarm device. The data acquisition system is used for acquiring bridge disease and disaster signals. The data acquisition system includes a plurality of data acquisition subsystems. Output ends of the plurality of data acquisition subsystems are respectively connected to a plurality of input ends of the signal interlock circuit. An output end of the signal interlock circuit is respectively connected to an input end of the signal transmission system and an input end of the interlock detection circuit. An output end of the signal transmission system is in signal connection with an input end of the remote operation platform. An output end of the remote operation platform is in signal control connection with the alarm device. The present utility model discloses that the signal interlock circuit includes a signal acquisition circuit and a signal interlock circuit. A plurality of input ends of the signal interlock circuit are connected to a plurality of signal acquisition circuits. The plurality of signal acquisition circuits are connected to the signal interlock circuit. The interlock detection circuit includes an MCU, a discrimination component and a discrimination circuit. One end of the discrimination component is connected to the data acquisition system, and the other end is connected to the MCU through the discrimination circuit. By coupling multiple signals through the signal interlock circuit, the reliability of the signals is ensured. By means of the interlock detection circuit, the effectiveness of signal detection is improved, and accurate warning of bridge diseases and disasters is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0019] Figure 1 FIG. is a schematic structural diagram of a warning device for bridge diseases and disasters provided by the present utility model.

[0020] Figure 2 FIG. is a schematic detailed structural diagram of a warning device for bridge diseases and disasters provided by the present utility model.

[0021] Figure 3 FIG. is a schematic structural diagram of the interlock detection circuit provided by the present utility model.

[0022] Figure 4 FIG. is a schematic circuit diagram of the over-displacement power-off device provided by the present utility model.

[0023] Figure 5 FIG. is a working flow chart of a warning device for bridge diseases and disasters provided by the present utility model.

[0024] Figure 6 FIG. is a schematic circuit diagram of the interlock detection circuit provided by the present utility model. Detailed implementation manners

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] An embodiment of the present invention discloses a bridge disease disaster warning device, as Figure 1 shown, including: a data acquisition system, a signal interlock circuit, an interlock detection circuit, a signal transmission system, a remote operation platform and an alarm device. The data acquisition system is used to acquire bridge disease disaster signals. The data acquisition system includes a plurality of data acquisition subsystems. The output ends of the plurality of data acquisition subsystems are respectively connected to a plurality of input ends of the signal interlock circuit. The output end of the signal interlock circuit is respectively connected to the input end of the signal transmission system and the input end of the interlock detection circuit. The output end of the signal transmission system is in signal connection with the input end of the remote operation platform. The output end of the remote operation platform is in signal control connection with the alarm device.

[0027] Furthermore, the data acquisition subsystem includes a pressure sensor, a displacement sensor and a corner sensor.

[0028] In the detailed implementation manners, as Figure 2 shown, the signal interlock circuit includes: a signal acquisition circuit and a signal interlock circuit. The plurality of input ends of the signal interlock circuit are connected to a plurality of signal acquisition circuits. The plurality of signal acquisition circuits are connected to the signal interlock circuit. The signal acquisition circuit includes: a pressure signal transmission circuit, a corner signal transmission circuit and a displacement signal transmission circuit corresponding to the pressure sensor, the corner sensor and the displacement sensor respectively. The signal interlock circuit includes: a vertical force and corner interlock circuit and a displacement and corner interlock circuit; the vertical force and corner interlock circuit includes a vertical force signal transmission circuit and a corner signal transmission circuit with parallel outputs; the displacement and corner interlock circuit includes a displacement signal transmission circuit and a corner signal transmission circuit with parallel outputs.

[0029] In the detailed implementation manners, as Figure 3As shown in the figure, the interlock detection circuit includes: an MCU, a discrimination component, and a discrimination circuit. One end of the discrimination component is connected to the data acquisition system, and the other end is connected to the MCU through the discrimination circuit. The discrimination component includes a drive circuit, an AD converter, a discriminator, and a plug connector. The MCU is signal-controlled and connected to the drive circuit. The AD converter is connected to a signal acquisition circuit. One end of the discriminator is connected to the AD converter, and the other end is connected to the plug connector through the drive circuit. The plug connector is connected to the discrimination circuit.

[0030] Specifically, the signal data of the data acquisition system is transmitted to the AD converter through the signal acquisition circuit. The AD converter converts the signal into a comparable threshold signal. The MCU controls the discriminator to compare the real-time signal with the preset threshold. When both groups of interlock signals exceed the preset threshold, the MCU controls the drive circuit to power on the two groups of plug connectors. After both groups of plug connectors are powered on, the interlock detection circuit starts to work. The MCU controls the drive circuit to send fixed-frequency pulses at fixed time intervals. The preset threshold is determined according to the situation of bridge diseases and disasters. The fixed time interval is 100 ms.

[0031] In the specific implementation, as Figure 6 shown in the figure, the connection between the MCU and the external circuit (sensor) is realized by installing a discrimination component on the data acquisition system. The interlock detection circuit is respectively connected to the vertical force and rotation angle interlock circuit and the displacement and rotation angle interlock circuit, and includes PWM1 and PWM2. PWM1 is connected to the plug connector in the interlock detection circuit, and PWM2 is connected to the MCU. The MCU controls the drive circuit to send fixed-frequency pulses. The pulses return to the discrimination circuit after passing through the connector. The MCU collects the pulses at PWM2 and compares them with the pulses initially sent by the MCU. If no two groups of pulses are detected at PWM2, or the two groups of pulses received are different from the sent pulses, the interlock alarm is false and no signal is transmitted to the signal emission system; if two groups of pulses are detected at PWM2 and the two groups of pulses received are the same as the sent pulses, the interlock alarm is true and a signal is transmitted to the signal emission system. Moreover, when the interlock alarm is true, the remote operation platform outputs a remote control signal to control the alarm device to give an audible and visual alarm. Coupling multiple signals through the signal interlock circuit ensures the reliability of the signal. The effectiveness of signal detection is improved through the interlock detection circuit, avoiding early warning failures of bridge diseases and disasters caused by sensor damage.

[0032] Furthermore, the alarm device is an audible and visual alarm, and the audible and visual alarm is also provided with an antenna. The audible and visual alarm is signal-connected to the remote operation platform through the antenna.

[0033] Further, it further includes: a super-displacement power-off device, and the super-displacement power-off device is signal-connected to the alarm device.

[0034] Further, it further includes a solar energy collection and storage device, and the solar energy collection and storage device is respectively connected to the data collection system, the signal interlock circuit, the interlock detection circuit, the signal transmission system, and the alarm device.

[0035] In a specific embodiment, a bridge disease disaster warning device specifically includes:

[0036] S1: Install a data collection system to detect the vertical force, displacement, and rotation angle of the bridge. When these parameters exceed the standard, give an early warning through a warning sound and a flashing light, and interlock and alarm for the vertical force and the rotation angle; install a displacement and rotation angle detection device. When the parameters exceed the standard, give an early warning through a warning sound and a flashing light. Interlock and alarm for the displacement and the rotation angle.

[0037] S2: Install a data collection system to simultaneously detect the vertical force, displacement, and rotation angle of the bridge; install a data collection system; install a signal transmission system; establish a remote operation platform; install an alarm device (with the function of receiving remote signals); install a solar energy collection and storage device for bridges where it is inconvenient to obtain power.

[0038] S3: Install a displacement and rotation angle detection device; install a super-displacement power-off device; install a data collection system; install a signal transmission system; establish a remote operation platform; install an alarm device (with the function of receiving remote signals); install a solar energy collection and storage device for bridges where it is inconvenient to obtain power.

[0039] In a specific embodiment, a bridge disease disaster warning device specifically includes:

[0040] S11: Used on the bridge structure to detect the stress, displacement, and rotation angle conditions of the bridge, automatically collect data, transmit signals to the remote operation platform, and the remote operation platform automatically identifies the over-limit parameters. When over-limit parameters appear, immediately start the automatic alarm system. The remote operation platform can remotely transmit signals, and the alarm device receives the signals and immediately gives an alarm;

[0041] S22: The alarm device is set at a prominent position on the bridge deck to facilitate pedestrians and vehicles to receive sound and light warning information;

[0042] S33: In order to avoid false alarms, an interlock type alarm device is adopted, including: a vertical force and rotation angle interlock circuit and a displacement and rotation angle interlock circuit, that is, it is necessary to simultaneously meet the over-stress and over-rotation angle, or the displacement and rotation angle exceed the standard to activate the alarm;

[0043] The signal data of the data acquisition system is transmitted to the AD converter through the signal acquisition circuit. The AD converter converts the signal into a comparable threshold signal. The MCU-controlled discriminator compares the real-time signal with the preset threshold. When the preset threshold is exceeded, the MCU controls the drive circuit to power on the plug-in unit. At the same time, the MCU controls the drive circuit to send fixed-frequency pulses at fixed time intervals. The preset threshold is determined according to the situation of bridge diseases and disasters. The fixed time interval is 100 ms;

[0044] The connection between the MCU and the external circuit (sensor) in the interlock detection circuit is realized by installing a discriminant component on the data acquisition system. The interlock detection circuit is respectively connected to the vertical force and rotation angle interlock circuit and the displacement and rotation angle interlock circuit, and includes PWM1 and PWM2. PWM1 is connected to the plug-in unit in the interlock detection circuit, and PWM2 is connected to the MCU. The MCU controls the drive circuit to send fixed-frequency pulses. The pulses return to the discriminant circuit after passing through the connector. The MCU collects the pulses at PWM2 and compares them with the pulses sent by the MCU at the beginning. If no two groups of pulses are detected at PWM2, or the two groups of pulses received are different from the pulses sent, the interlock alarm is false. If two groups of pulses are detected at PWM2 and the two groups of pulses received are the same as the pulses sent, the interlock alarm is true. Specifically, when the interlock alarm is true, the remote operation platform outputs a remote control signal to control the alarm device to give an audible and visual alarm, and outputs an alarm when the interlock alarm is true, avoiding frequent triggering of signals and data errors caused by malfunctions of the data acquisition device;

[0045] S44: It also includes an over-displacement power-off device, such as Figure 4 shown, that is, when the displacement exceeds the standard, the working circuit is disconnected, and at the same time, the alarm circuit is closed to activate the audible and visual alarm;

[0046] S55: The force measuring device is installed in the intelligent bearing, the displacement detection device is installed between the beam body and the pier, and the rotation angle detection device can be installed on the intelligent bearing, or on the side or surface of the bridge, which is convenient for installation and maintenance. The intelligent bearing is installed on the bridge;

[0047] S66: Detect the vertical force, displacement and rotation angle of the bridge. When these parameters exceed the standard, give an early warning through a warning sound and a flashing light.

[0048] In the specific implementation manner, the over-displacement power-off device specifically includes: a friction-type disconnect switch. One end of the friction-type disconnect switch is fixed to the bottom of the beam body, and the other end is fixed to the pier or the bridge deck. When the tensile force at both ends exceeds a certain value, the switch is pulled off and disconnected. After the horizontal displacement and the vertical displacement exceed the standard, the friction-type disconnect switch will be pulled off and disconnected, that is, when the displacement exceeds the standard, the working circuit is disconnected, and at the same time, the alarm circuit is closed to activate the audible and visual alarm.

[0049] In the specific implementation manner, as Figure 5 shown, the working process of a bridge disease disaster warning device is as follows: The sensor detects pressure, displacement and rotation angle data. The data collector can adjust the collection frequency and can collect the pressure, displacement and rotation angle data of multiple bearings at the same time. The signal transmitter can remotely transmit information wirelessly. The processing platform can automatically process garbage information, can distinguish warning information, and can issue a warning signal.

[0050] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts among the various embodiments, reference can be made to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0051] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bridge disease disaster warning device, characterized in that, Including: A data acquisition system, a signal interlock circuit, an interlock detection circuit, a signal transmission system, a remote operation platform, and an alarm device. The data acquisition system is used to collect bridge disease and disaster signals. The data acquisition system includes a plurality of data acquisition subsystems. The output ends of the plurality of data acquisition subsystems are respectively connected to a plurality of input ends of the signal interlock circuit. The output end of the signal interlock circuit is respectively connected to the input end of the signal transmission system and the input end of the interlock detection circuit. The output end of the signal transmission system is signal-connected to the input end of the remote operation platform. The output end of the remote operation platform is signal-controlled and connected to the alarm device.

2. The bridge disease disaster warning device according to claim 1, wherein, The data acquisition subsystem includes a pressure sensor, a displacement sensor, and a rotation angle sensor.

3. The bridge disease disaster warning device according to claim 1, characterized in that, The signal interlock circuit includes: a signal acquisition circuit and a signal interlock circuit. A plurality of input ends of the signal interlock circuit are connected to a plurality of signal acquisition circuits. The plurality of signal acquisition circuits are connected to the signal interlock circuit.

4. The bridge disease disaster warning device according to claim 3, characterized in that, The signal acquisition circuit includes: a pressure signal transmission circuit, a rotation angle signal transmission circuit, and a displacement signal transmission circuit corresponding to the pressure sensor, the rotation angle sensor, and the displacement sensor respectively. The signal interlock circuit includes: a vertical force and rotation angle interlock circuit, a displacement and rotation angle interlock circuit; the vertical force and rotation angle interlock circuit includes a vertically-force signal transmission circuit and a rotation angle signal transmission circuit with parallel outputs; the displacement and rotation angle interlock circuit includes a displacement signal transmission circuit and a rotation angle signal transmission circuit with parallel outputs.

5. The bridge disease disaster warning device according to claim 1, characterized in that, The interlock detection circuit includes: an MCU, a discrimination component, and a discrimination circuit. One end of the discrimination component is connected to the data acquisition system, and the other end is connected to the MCU through the discrimination circuit.

6. The bridge disease disaster warning device according to claim 5, characterized in that, The discrimination component includes a drive circuit, an AD converter, a discriminator, and a plug-in unit. The MCU is signal-controlled and connected to the drive circuit. The AD converter is connected to the signal acquisition circuit. One end of the discriminator is connected to the AD converter, and the other end is connected to the plug-in unit through the drive circuit. The plug-in unit is connected to the discrimination circuit.

7. A bridge disease disaster warning device according to claim 1, characterized in that, The alarm device is an audible and visual alarm. The audible and visual alarm is further provided with an antenna. The audible and visual alarm is signal-connected to the remote operation platform through the antenna.

8. A bridge disease disaster warning device according to claim 7, characterized in that, Also including: An over-displacement power-off device. The over-displacement power-off device is signal-connected to the alarm device.

9. The bridge disease disaster warning device according to claim 1, characterized in that, Also including: a solar energy collection and storage device. The solar energy collection and storage device is respectively connected to the data acquisition system, the signal interlock circuit, the interlock detection circuit, the signal transmission system, and the alarm device.

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