Wireless bridge vibration parameter acquisition device
By designing a wireless bridge vibration parameter acquisition device, using MEMS sensors and microcontroller chips for data processing and wireless transmission, the shortcomings of mechanical impact excitation methods and poor contact of wired sensors in traditional detection methods are solved, and the rapidity of bridge vibration parameters is achieved. , accurate collection and long-distance data transmission.
Patent Information
- Application Number
- CN202421346554.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-06-13
AI Technical Summary
Among the existing bridge structure dynamic parameter detection methods, the mechanical impact excitation method cannot be implemented quickly after natural disasters, and traditional wired vibration sensors are prone to poor contact and disconnection under harsh conditions, which affects detection efficiency and accuracy.
A wireless bridge vibration parameter acquisition device was designed, using components such as MEMS six-axis acceleration sensor, microcontroller chip, WiFi chip and synchronous transmissive chip to transmit vibration data through wireless connections and powered by built-in batteries, avoiding the traditional wired connection. defect.
It realizes the rapid and accurate collection of bridge vibration parameters, avoids the problems of confusing wires and poor contact, improves the adaptability in complex detection environments, and supports long-distance data transmission and real-time control.
Smart Images
Figure CN222514406U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge performance parameter acquisition devices, in particular to a wireless bridge vibration parameter acquisition device. Background Art
[0002] In order to evaluate the working performance and bearing capacity of the bridge, it is necessary to conduct non-destructive testing on the bridge. One of the testing contents is to measure the structural dynamic parameters of the bridge. For example, frequency, damping, vibration mode, by comparing these parameters at different service periods, we can understand the changes in the dynamic performance of the bridge structure, evaluate the working performance and bearing capacity of the bridge, and take maintenance or reinforcement measures. The existing excitation methods for structural dynamic parameter detection generally include four methods: environmental excitation method (also known as earth pulsation method), vehicle-induced vibration method (vehicles pass through the bridge at a certain speed, which can be divided into sports car excitation, jumping excitation and braking excitation), force hammer excitation method and mechanical impact excitation method. After a natural disaster occurs in the local area, when vehicles cannot pass and the bridge structure needs to be quickly tested, it is difficult to use the mechanical impact excitation method. When it is necessary to quickly test the bridge structure, the force hammer excitation method is generally used for testing. When using the force hammer excitation method, the tester holds a force hammer and knocks on the bridge structure. Vibration data of the bridge is collected by vibration sensors deployed at different locations on the bridge to determine the degree of bridge disease.
[0003] Existing vibration sensors are usually connected to the host computer by wires. Vibration signals are transmitted and power is supplied through wires. However, when sorting and arranging vibration sensors, overly long wires will seriously affect the arrangement speed. Under harsh working conditions, overly long wires are also prone to disconnection or poor contact, which is very unfavorable for rapid post-disaster bridge detection. Utility Model Content
[0004] The purpose of the utility model is to provide a wireless bridge vibration parameter acquisition device to solve at least one technical problem existing in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] The utility model provides a wireless bridge vibration parameter acquisition device, comprising:
[0007] Lower shell, upper shell, connecting column, wifi antenna, synchronous antenna, charging port, switch, communication circuit board, main circuit board, MEMS six-axis acceleration sensor, battery, microcontroller chip, WiFi chip and synchronous transparent transmission chip;
[0008] The lower shell is connected to the upper shell through a connecting column to form a closed shell; a magnetic seat is installed at the bottom of the lower shell;
[0009] The communication circuit board and the main circuit board are fixed inside a closed housing composed of a lower housing and an upper housing through connecting columns;
[0010] The battery is located at the bottom of the main circuit board and is glued inside the lower shell;
[0011] The MEMS six-axis acceleration sensor is integrated on the main circuit board; the Wifi antenna, synchronization antenna, charging interface, and switch are fixed on the upper shell; the Wifi antenna and synchronization antenna are connected to the communication circuit board through wires; the switch is connected to the main circuit board through wires; the charging interface is connected to the main circuit board and the battery respectively through wires; the battery is connected to the communication circuit board and the main circuit board respectively through wires.
[0012] Furthermore, the microcontroller chip on the main circuit board is connected to the WiFi chip on the communication circuit board via a line, and the WiFi chip is connected to the WiFi antenna via a line.
[0013] Furthermore, the microcontroller chip on the main circuit board is connected to the synchronous transparent transmission chip on the communication circuit board through a line, and the synchronous transparent transmission chip is connected to the synchronous antenna through a line.
[0014] Beneficial effects of the utility model: an independent acquisition device design is adopted to monitor the vibration acceleration signal of the bridge through a vibration sensor. The vibration velocity and displacement data of the bridge are calculated by a microcontroller chip. The microcontroller chip sends the calculated vibration data to the host computer through a WiFi chip and a WiFi antenna. The microcontroller chip is connected to the host computer through a synchronous transparent transmission chip and a synchronous antenna to realize the control of the device by the host computer. The built-in battery is connected to the communication circuit board and the main circuit board respectively to provide power to each component of the device. In this way, the wireless design of the detection device is realized. Using the device to detect the vibration data of the bridge can avoid the problems of poor contact and messy wires caused by the overlong data cable, and improve the ability to adapt to complex detection environments. A magnet is installed at the bottom of the device. When detecting an iron bridge, the device can be directly adsorbed on the iron bridge. When detecting a non-iron bridge, after fixing the iron base on the bridge with quick-drying powder, the device is directly adsorbed on the iron base to realize the rapid installation of the device.
[0015] Additional aspects and advantages of the present invention will be partially given in the following description, which will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0017] Figure 1 This is a structural exploded view of the wireless bridge vibration parameter acquisition device described in an embodiment of the utility model.
[0018] Figure 2 This is a circuit connection diagram of the wireless bridge vibration parameter acquisition device described in an embodiment of the utility model.
[0019] Among them: 1-lower shell; 2-upper shell; 3-connecting column; 4-wifi antenna; 5-synchronous antenna; 6-charging interface; 7-switch; 8-communication circuit board; 9-main circuit board; 10-MEMS six-axis acceleration sensor; 11-battery; 12-microcontroller chip; 13-WiFi chip; 14-synchronous transparent transmission chip; 15-jack; 16-blind hole; 17-hexagonal copper bolt. DETAILED DESCRIPTION
[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below by the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.
[0021] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as generally understood by those skilled in the art to which the present invention belongs.
[0022] It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have a meaning consistent with that in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless as defined herein.
[0023] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements and / or groups thereof.
[0024] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.
[0025] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0026] In the description of this specification, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present technology and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present technology.
[0027] Unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in this technology can be understood according to specific circumstances.
[0028] To facilitate the understanding of the present invention, the present invention is further explained below with reference to specific embodiments in conjunction with the accompanying drawings, and the specific embodiments do not constitute a limitation on the embodiments of the present invention.
[0029] Those skilled in the art should understand that the drawings are merely schematic diagrams of embodiments, and the components in the drawings are not necessarily necessary for implementing the present invention.
[0030] After natural disasters such as earthquakes and mudslides, bridges carrying roads and railways have potential safety hazards. In order to ensure that bridges can meet the requirements of safe passage, it is necessary to quickly detect bridges. The purpose of this utility model is to design a detection device that can achieve long-distance transmission and quickly monitor vibration parameters, so as to achieve rapid detection of bridges. The key point is to use a wireless connection method to avoid the influence of too long wires on rapid detection.
[0031] Example 1
[0032] like Figure 1 , Figure 2 As shown, in this embodiment, a wireless bridge vibration parameter acquisition device is provided, which adopts an independent integrated design and mainly includes the following parts: a lower shell 1, an upper shell 2, a connecting column 3, a wifi antenna 4, a synchronous antenna 5, a charging interface 6, a switch 7, a communication circuit board 8, a main circuit board 9, a MEMS six-axis acceleration sensor 10, a battery 11, a microcontroller chip 12, a WiFi chip 13, and a synchronous transparent transmission chip 14.
[0033] The device is provided with a magnet at the bottom of the lower housing 1. When installing the device, it is only necessary to adsorb the device on the iron bridge. If it is installed on a non-iron bridge, the iron base is firmly fixed on the non-iron bridge using quick-drying powder, and then the device is adsorbed on the iron base. Thus, the device can be quickly installed.
[0034] The main circuit board 9 of the device integrates a MEMS six-axis acceleration sensor 10 and a microcontroller chip 12. The vibration signal of the bridge is monitored by the MEMS six-axis acceleration sensor 10. After the vibration signal of the bridge is monitored, the acceleration values in three directions and the torsion data in three directions are transmitted to the microcontroller chip 12 through the circuit on the circuit board. The microcontroller chip 12 integrates the acceleration values in three directions into the velocity values and displacement values in three directions through integration. Thus, the vibration data of the bridge is calculated.
[0035] The microcontroller chip 12 on the main circuit board 9 is connected to the WiFi chip 13 on the communication circuit board 8 through a line, and the WiFi chip 13 is connected to the WiFi antenna 4 through a line. The microcontroller chip 12 transmits the calculated bridge vibration data to the host computer through the WiFi chip and the WiFi antenna.
[0036] The microcontroller chip 12 on the main circuit board 9 is connected to the synchronous transparent transmission chip 14 on the communication circuit board 8 through a line, and the synchronous transparent transmission chip 14 is connected to the synchronous antenna 5 through a line. The microcontroller chip is connected to the host computer through the synchronous transparent transmission chip 14 and the synchronous antenna 5 to realize the real-time control of the device by the host computer.
[0037] The device has a built-in battery 11, which is connected to the communication circuit board 8 and the main circuit board 9 via a wire. Thus, the battery supplies power to the device. The charging interface 6 is connected to the battery 11 via a wire to realize the charging function of the battery 11.
[0038] This device transmits the monitored vibration signal to the host computer via WiFi. The host computer controls this device through synchronous transparent transmission. This device has a built-in rechargeable battery to realize the energy supply of this device. In this way, the vibration data of the bridge can be detected without the need for lines.
[0039] Example 2
[0040] like Figure 1 , Figure 2 As shown, in this embodiment, a wireless acquisition device for detecting bridge vibration data is provided, which is mainly composed of a lower shell 1, an upper shell 2, a connecting column 3, a wifi antenna 4, a synchronous antenna 5, a charging interface 6, a switch 7, a communication circuit board 8, a main circuit board 9, a MEMS six-axis acceleration sensor 10, a battery 11, a microcontroller chip 12, a WiFi chip 13, a synchronous transparent transmission chip 14, etc.
[0041] The lower shell 1 forms a closed shell with the upper shell 2 through the connecting column 3. There are 4 connecting columns 3, and the communication circuit board 8 and the main circuit board 9 are arranged on the connecting columns 3 from top to bottom. The four corners of the lower shell 1 are provided with plug holes 15, and the lower ends of the connecting columns 3 are inserted into the plug holes. The four corners of the upper shell 2 are provided with through holes, and the upper ends of the connecting columns 3 correspond to the through holes, and blind holes 16 with internal threads are provided. Four hexagonal copper bolts 17 are respectively passed through the through holes and threadedly connected with the blind holes. The hexagonal copper bolts are tightened to realize the packaging of the upper shell 2 and the lower shell 1.
[0042] A magnetic base is installed at the bottom of the lower shell. The communication circuit board 8 and the main circuit board 9 are fixed inside the closed shell composed of the lower shell 1 and the upper shell 2 through the connecting column 3. The battery 11 is placed at the bottom of the main circuit board 9 and glued inside the lower shell 1. The MEMS six-axis acceleration sensor 10 is integrated on the main circuit board 9. The Wifi antenna 4, the synchronous antenna 5, the charging interface 6, and the switch 7 are fixed on the upper shell 2. The Wifi antenna 4 and the synchronous antenna 5 are connected to the communication circuit board 8 through wires. The switch 7 is connected to the main circuit board 9 through wires. The charging interface 6 is connected to the main circuit board 9 and the battery 11 respectively through wires. The battery 11 is connected to the communication circuit board 8 and the main circuit board 9 respectively through wires and supplies power to them.
[0043] The vibration signal of the bridge is monitored by the MEMS six-axis acceleration sensor 10. After the vibration signal of the bridge is monitored, the acceleration values in three directions and the torsion data in three directions are transmitted to the microcontroller chip 12 through the circuit on the circuit board. The microcontroller chip 12 integrates the acceleration values in three directions into the velocity values and displacement values in three directions through integration, thereby calculating the vibration data of the bridge.
[0044] The microcontroller chip 12 on the main circuit board 9 is connected to the WiFi chip 13 on the communication circuit board 8 through a line, and the WiFi chip 13 is connected to the WiFi antenna 4 through a line. The microcontroller chip 12 transmits the calculated bridge vibration data to the host computer through the WiFi chip and the WiFi antenna.
[0045] The microcontroller chip 12 on the main circuit board 9 is connected to the synchronous transparent transmission chip 14 on the communication circuit board 8 through a line, and the synchronous transparent transmission chip 14 is connected to the synchronous antenna 5 through a line. The microcontroller chip is connected to the host computer through the synchronous transparent transmission chip 14 and the synchronous antenna 5 to realize the real-time control of the device by the host computer.
[0046] When installing the device, just adsorb the device on the iron bridge. If it is installed on a non-iron bridge, use quick-drying powder to firmly fix the iron base on the non-iron bridge, and then adsorb the device on the iron base. This allows the device to be quickly installed.
[0047] Although the above describes the specific implementation methods of the utility model in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution disclosed in the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work should be included in the scope of protection of the utility model.
Claims
1. A wireless bridge vibration parameter acquisition device, characterized in that: include: Lower shell, upper shell, connecting column, wifi antenna, synchronous antenna, charging port, switch, communication circuit board, main circuit board, MEMS six-axis acceleration sensor, battery, microcontroller chip, WiFi chip and synchronous transparent transmission chip; The lower shell is connected to the upper shell through a connecting column to form a closed shell; a magnetic seat is installed at the bottom of the lower shell; The communication circuit board and the main circuit board are fixed inside a closed housing composed of a lower housing and an upper housing through connecting columns; The battery is located at the bottom of the main circuit board and is glued inside the lower shell; The MEMS six-axis acceleration sensor is integrated on the main circuit board; the Wifi antenna, synchronization antenna, charging interface, and switch are fixed on the upper shell; the Wifi antenna and synchronization antenna are connected to the communication circuit board through wires; the switch is connected to the main circuit board through wires; the charging interface is connected to the main circuit board and the battery respectively through wires; the battery is connected to the communication circuit board and the main circuit board respectively through wires.
2. The wireless bridge vibration parameter acquisition device according to claim 1, characterized in that: The microcontroller chip on the main circuit board is connected to the WiFi chip on the communication circuit board through a line, and the WiFi chip is connected to the WiFi antenna through a line.
3. The wireless bridge vibration parameter acquisition device according to claim 2 is characterized in that: The microcontroller chip on the main circuit board is connected to the synchronous transparent transmission chip on the communication circuit board through a line, and the synchronous transparent transmission chip is connected to the synchronous antenna through a line.