Inhaul cable stress early warning device of multi-tower cable-stayed bridge

Abstract

The utility model provides an inhaul cable stress early warning device of a multi-tower cable-stayed bridge, and relates to the technical field of stress early warning. Comprising a first magnetic flux sensor and a second magnetic flux sensor which are respectively arranged at a first position and a second position of a stay cable PE outer sheath of the multi-tower cable-stayed bridge, and a first communication device which is electrically connected with the first magnetic flux sensor and the second magnetic flux sensor, the plurality of alarm modules and the plurality of switch modules are integrally arranged in the placing box. The problem of low early warning efficiency is solved.

Description

Technical Field

[0001] This utility model relates to the field of stress early warning technology, and in particular to a cable stress early warning device for a multi-tower cable-stayed bridge. Background Technology

[0002] A cable-stayed bridge, also known as a skeletal bridge, is a type of bridge in which the main beam is directly attached to the bridge towers by numerous cables. It is a structural system composed of pressure-bearing towers, tension-bearing cables, and bending-bearing beams.

[0003] Currently, the stress measurement of cable stays relies on manual measurement and data recording of each cable individually, which undoubtedly increases the workload and leads to low early warning efficiency. Utility Model Content

[0004] This invention provides a cable stress early warning device for multi-tower cable-stayed bridges to solve the problem of low early warning efficiency.

[0005] This utility model provides a cable stress early warning device for a multi-tower cable-stayed bridge, comprising: a first magnetic flux sensor and a second magnetic flux sensor respectively installed at a first position and a second position on the PE outer sheath of the cable of the multi-tower cable-stayed bridge; a first communication device electrically connected to the first magnetic flux sensor and the second magnetic flux sensor; and several alarm modules and several switch modules integrated in a placement box.

[0006] The alarm module includes: a second communication device that is communicatively connected to the first communication device, a digital processor, a controller, and indicator lights;

[0007] The switch module includes: a button and a power supply;

[0008] The button is connected to a power source, which is electrically connected to the second communication device, the digital processor, the controller, and the indicator lights.

[0009] The second communication device is electrically connected in sequence to the digital processor, the controller, and the indicator lights;

[0010] The first magnetic flux sensor and the second magnetic flux sensor are communicatively connected to their respective digital processors via the first communication device and the second communication device.

[0011] Among them, the first magnetic flux sensor and the second magnetic flux sensor on the same cable PE outer sheath correspond to a switch module, and each switch module corresponds to an alarm module.

[0012] Furthermore, the first position is located above the second position.

[0013] Furthermore, the positional distance between the first position and the second position is 5cm-8cm.

[0014] Furthermore, the controller uses an STM32 chip.

[0015] Furthermore, magnetic flux sensors include, but are not limited to, closed-loop magnetic flux sensors and open-loop magnetic flux sensors.

[0016] Furthermore, it also includes: a display screen;

[0017] The controller communicates remotely with the display screen via a third communication component located inside the placement box and a fourth communication component located at one end of the display screen.

[0018] Furthermore, the display screen is a liquid crystal display screen.

[0019] Furthermore, the communication devices include, but are not limited to, 5G communication modules, 4G communication modules, IoT communication modules, Wi-Fi communication modules, and GSM communication modules.

[0020] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a structural diagram of a cable stress early warning device for a multi-tower cable-stayed bridge according to an embodiment of the present invention. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] This utility model provides a cable stress early warning device for multi-tower cable-stayed bridges, such as... Figure 1As shown, it includes: a first magnetic flux sensor 01 and a second magnetic flux sensor 02 respectively installed at the first position and the second position of the PE outer sheath of the cable of the multi-tower cable-stayed bridge; a first communication device 11 electrically connected to the first magnetic flux sensor 01 and the second magnetic flux sensor 02; and several alarm modules 3 and several switch modules 4 integrated in the placement box.

[0026] The alarm module 3 includes: a second communication device 31 that is communicatively connected to the first communication device 11, a digital processor 32, a controller 33, and an indicator light 34;

[0027] The switch module 4 includes: a button 41 and a power supply 42;

[0028] The button 41 is connected to the power supply 42, and the power supply 42 is electrically connected to the second communication device 31, the digital processor 32, the controller 33 and the indicator light 34 respectively.

[0029] The second communication device 31 is electrically connected in sequence to the digital processor 32, the controller 33, and the indicator light 34;

[0030] The first magnetic flux sensor 01 and the second magnetic flux sensor 02 are communicatively connected to the corresponding digital processor 32 through the first communication device 11 and the second communication device 31.

[0031] Among them, the first magnetic flux sensor 01 and the second magnetic flux sensor 02 on the same cable PE outer sheath correspond to a switch module 4, and each switch module 4 corresponds to an alarm module 3.

[0032] Furthermore, the first position is located above the second position.

[0033] Furthermore, the positional distance between the first position and the second position is 5cm-8cm.

[0034] Furthermore, the controller uses an STM32 chip.

[0035] Furthermore, magnetic flux sensors include, but are not limited to, closed-loop magnetic flux sensors and open-loop magnetic flux sensors.

[0036] Furthermore, it also includes: a display screen;

[0037] The controller communicates remotely with the display screen via a third communication component located inside the placement box and a fourth communication component located at one end of the display screen.

[0038] Furthermore, the display screen is a liquid crystal display screen.

[0039] Furthermore, the communication devices include, but are not limited to, 5G communication modules, 4G communication modules, IoT communication modules, Wi-Fi communication modules, and GSM communication modules.

[0040] The working principle of the above technical solution is as follows: Based on the operator pressing the button to keep the power supply in the power supply state, when stress is applied to the cable, the first magnetic flux sensor 01 at the first position and the second magnetic flux sensor 02 at the second position on the outer sheath of the cable PE respectively collect the corresponding first magnetic flux signal and second magnetic flux signal. The two collected signals are transmitted to the digital processor 32 through the first communication device 11 and the second communication device 31. The digital processor 32 converts the two signals into digital signals by analog-to-digital conversion and transmits them to the controller 33. The controller compares the two digital signals with the set threshold range respectively. If the two digital signals are within the set threshold range, a light-off command is sent to the indicator light 34 connected to the controller 33; otherwise, a light-on command is sent.

[0041] In this embodiment, the digital processor may be a DSP processor.

[0042] In this embodiment, by setting sensors at two locations, it is easier to more accurately determine whether the stress of the cable is up to standard.

[0043] In this embodiment, regarding the working principle of the display screen: each controller transmits the two digital signals of the corresponding cable-stayed cable to the display screen for display based on the third communication component and the fourth communication component, respectively.

[0044] In this embodiment, the magnetic flux sensor is automatically powered on and can automatically collect data.

[0045] The beneficial effects of the above technical solution are: by setting two magnetic flux sensors on each cable and combining them with an integrated switch module and alarm module, it is easy to realize stress detection of multiple cables, reduce human workload, and improve early warning efficiency.

[0046] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A cable stress early warning device for a multi-tower cable-stayed bridge, characterized in that, include: A first magnetic flux sensor and a second magnetic flux sensor are respectively installed at the first position and the second position of the PE outer sheath of the cable of the multi-tower cable-stayed bridge, respectively; a first communication device electrically connected to the first magnetic flux sensor and the second magnetic flux sensor; and several alarm modules and several switch modules are integrated in the placement box. The alarm module includes: a second communication device that is communicatively connected to the first communication device, a digital processor, a controller, and indicator lights; The switch module includes: a button and a power supply; The button is connected to a power source, which is electrically connected to the second communication device, the digital processor, the controller, and the indicator lights. The second communication device is electrically connected in sequence to the digital processor, the controller, and the indicator lights; The first magnetic flux sensor and the second magnetic flux sensor are communicatively connected to their respective digital processors via the first communication device and the second communication device. Among them, the first magnetic flux sensor and the second magnetic flux sensor on the same cable PE outer sheath correspond to a switch module, and each switch module corresponds to an alarm module.

2. The cable stress early warning device for a multi-tower cable-stayed bridge according to claim 1, characterized in that, The first position is located above the second position.

3. The cable stress early warning device for a multi-tower cable-stayed bridge according to claim 2, characterized in that, The distance between the first position and the second position is 5cm-8cm.

4. The cable stress early warning device for a multi-tower cable-stayed bridge according to claim 1, characterized in that, The controller uses an STM32 chip.

5. The cable stress early warning device for a multi-tower cable-stayed bridge according to claim 1, characterized in that, Magnetic flux sensors include, but are not limited to, closed-loop magnetic flux sensors and open-loop magnetic flux sensors.

6. The cable stress early warning device for a multi-tower cable-stayed bridge according to claim 1, characterized in that, Also includes: Display screen; The controller communicates remotely with the display screen via a third communication component located inside the placement box and a fourth communication component located at one end of the display screen.

7. The cable stress early warning device for a multi-tower cable-stayed bridge according to claim 6, characterized in that, The display screen is a liquid crystal display screen.

8. The cable stress early warning device for a multi-tower cable-stayed bridge according to claim 1, characterized in that, Communication devices include, but are not limited to, 5G communication modules, 4G communication modules, IoT communication modules, WIFI communication modules, and GSM communication modules.

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