Exhibition truss safety monitoring system

Abstract

The utility model relates to a safety monitoring system for an exhibition truss. Comprising a dipmeter which is installed on a stand column of an exhibition truss and used for monitoring angle changes and a laser range finder which is installed on a frame of the exhibition truss and used for monitoring displacement changes. The dip angle measuring instrument comprises a processor module, and an X-axis dip angle sensor, a Y-axis dip angle sensor, a wireless communication module and a power supply module which are connected with the processor module; the laser range finder comprises a processor module, a laser transmitter, a laser receiver, a wireless communication module and a power supply module; the cloud platform is used for receiving monitoring data through the dipmeter and the laser range finder in a wireless mode and storing the monitoring data; the enterprise server is used for acquiring the monitoring data through the cloud platform; and the mobile terminal and the fixed terminal are used for acquiring the monitoring data through the enterprise server and displaying the monitoring data. The exhibition truss safety monitoring system has an automatic monitoring capability, and is accurate in monitoring and high in monitoring real-time performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of exhibition display facilities, and in particular relates to a safety monitoring system for exhibition trusses. Background Art

[0002] Truss steel structure has the advantages of light weight, ability to meet the process requirements of large column grid and large span, and convenient transportation and splicing, which makes this structure widely used in various industrial buildings. Exhibition truss is an exhibition display facility built at the exhibition site, which is used to construct the exhibition space and create the effect of exhibition. Exhibition truss usually includes columns and frames, in which the frame is stably supported by the columns to form a three-dimensional truss steel structure, and exhibition ancillary facilities such as sound and light components are installed on the frame. Planar trusses are usually used in existing exhibition scenes, that is, exhibition trusses with a flat top frame. Planar trusses are prone to overall bending and torsional instability and structural damage due to their large span, poor cross-sectional torsion resistance, and large out-of-plane slenderness ratio of the compression chord, especially when there is not enough out-of-plane support. Usually, damage to the truss structure will reduce the service life of the structure, and serious damage to the truss structure may even cause property loss and casualties.

[0003] Monitoring the status of exhibition trusses during the service life and dealing with problems in a timely manner after they are discovered is an effective means to solve the above problems and improve safety. Usually, the construction period of truss projects is short and the construction is difficult. Conventional linear and stress testing methods require a large number of technicians to conduct high-density on-site data collection and evaluate the status of exhibition trusses based on the collected data. This monitoring method is cumbersome and laborious to operate and has poor real-time performance. In addition, it is usually impossible to achieve accurate status judgment due to the large errors in manually collected data.

[0004] In summary, it is necessary to develop and design an exhibition truss safety monitoring system according to industry needs to continuously and effectively monitor the safety status of the exhibition truss steel structure and improve the application safety of the exhibition truss in the exhibition display scene. Utility Model Content

[0005] The purpose of the utility model is to provide an exhibition truss safety monitoring system with automatic monitoring capability, accurate monitoring and strong real-time monitoring, which can continuously and effectively monitor the safety status of the truss steel structure and improve the application safety of the exhibition truss in the exhibition display scene.

[0006] The technical scheme of the utility model is: a kind of exhibition truss safety monitoring system, comprising an inclinometer installed on the column of the exhibition truss for monitoring the angle change of the column and a laser rangefinder installed on the frame of the exhibition truss for monitoring the displacement change of the frame; the inclinometer comprises a processor module and an X-axis inclinometer sensor, a Y-axis inclinometer sensor, a wireless communication module and a power supply module connected with the processor module; the laser rangefinder comprises a processor module, a laser transmitter, a laser receiver, a wireless communication module and a power supply module; also comprises a cloud platform for receiving monitoring data by the inclinometer and the laser rangefinder in a wireless manner and storing the monitoring data, and an enterprise server for obtaining the monitoring data by the cloud platform, and also comprises a mobile terminal and a fixed terminal for obtaining and displaying the monitoring data by the enterprise server.

[0007] Preferably: the power module of the inclinometer is a rechargeable battery, and the power module of the laser rangefinder is a rechargeable battery.

[0008] Preferably: the inclinometer is mounted and fixed on the top side of the column, the laser rangefinder is mounted and fixed on the bottom of both ends and the middle bottom of the single crossbeam of the frame, and the laser transceiver window of the laser rangefinder faces the ground.

[0009] Preferably: the inclinometer is fixedly connected to the column by a movable clamp, the laser distance meter is fixedly connected to the frame by a movable clamp, and safety ropes are provided between the inclinometer and the laser distance meter and the exhibition truss.

[0010] Preferably: a small level is also installed on the housing of the inclinometer and the laser rangefinder.

[0011] The advantages and positive effects of the utility model are:

[0012] The utility model provides a safety monitoring system for exhibition trusses. Compared with the existing truss monitoring devices and monitoring methods, the safety monitoring system for exhibition trusses in the utility model achieves the technical effect of continuously and in real time monitoring the inclination changes of the columns during the service life of the exhibition trusses by installing inclinometers on the columns of the exhibition trusses. The technical effect of continuously and in real time monitoring the displacement changes of the frame during the service life of the exhibition trusses is achieved by installing laser rangefinders on the frames of the exhibition trusses. By continuously and in real time monitoring the inclination of the columns and the displacement of the frames, the status of the exhibition trusses is effectively monitored, providing a basis for judging the potential bending and torsional instability and structural damage of the exhibition trusses, and timely handling before specific problems occur, thereby avoiding the expansion of risks and improving the safety of the use of the exhibition trusses.

[0013] The safety monitoring system in the utility model is an information system. The inclinometer and the laser rangefinder automatically send the monitoring information to the cloud platform, so it has the function of automatic monitoring, and the continuity and real-time nature of monitoring are stronger. Moreover, the inclinometer and the laser rangefinder both have high measurement accuracy, so the monitoring accuracy is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a system structure diagram of the utility model;

[0015] Figure 2 It is a system structure diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the installation positions of the inclination angle measuring instrument and the laser rangefinder in the utility model;

[0017] Figure 4 yes Figure 3 Schematic diagram of the installation structure of the mid-inclination angle measuring instrument and laser rangefinder.

[0018] In the figure:

[0019] 1. Inclinometer; 2. Laser rangefinder; 3. Cloud platform; 4. Enterprise server; 5. Mobile terminal; 6. Fixed terminal; 7. Column; 8. Frame. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail.

[0021] See also Figure 1 and Figure 2 The exhibition truss safety monitoring system of the utility model comprises an inclinometer 1 installed on the column 7 of the exhibition truss for monitoring the angle change of the column 7 and a laser rangefinder 2 installed on the frame 8 of the exhibition truss for monitoring the displacement change of the frame 8. The inclinometer 1 is used to monitor the inclination change of the column 7. When the column 7 becomes more inclined compared with the initial position, the inclination detected by the inclinometer 1 becomes larger. The laser rangefinder 2 is used to monitor the distance change between the specific position of the frame 8 and the reference plane, that is, to monitor the displacement change of the specific position of the frame 8.

[0022] This safety monitoring system achieves the purpose of continuous and real-time monitoring of the status of the exhibition truss by continuously and real-time monitoring of the inclination changes of the columns 7 at specific positions of the exhibition truss and the displacement changes of specific positions of the frame 8 of the exhibition truss, so as to realize early detection and treatment of potential bending and torsional instability and structural damage, thereby improving the safety of the exhibition truss.

[0023] Figure 3and Figure 4 The schematic diagram of the installation position of the inclinometer 1 and the laser rangefinder 2 is given in FIG. 1 , and it can be seen that:

[0024] The inclinometer 1 is installed and fixed on the top side of the column 7. The inclinometer 1 uses the vertical direction as the reference direction to monitor the inclination changes of the column 7 in the X-axis and Y-axis directions. The laser rangefinder 2 is installed and fixed on the bottom of both ends and the middle bottom of the single crossbeam of the frame 8. The laser transceiver window of the laser rangefinder 2 faces the ground, that is, the laser rangefinder 2 uses the ground as the reference plane. During the monitoring period, the laser rangefinder 2 continuously and in real time monitors the distance changes between the position of the frame 8 and the ground reference plane to obtain the displacement data of the position of the frame 8.

[0025] In this embodiment, the inclinometer 1 is fixedly connected to the column 7 by a movable clamp, and the laser rangefinder 2 is fixedly connected to the frame 8 by a movable clamp. Safety ropes are provided between the inclinometer 1 and the laser rangefinder 2 and the exhibition truss. The advantage of using a movable clamp for fixed connection is to improve the convenience of disassembly and assembly of the inclinometer 1 and the laser rangefinder 2 to the exhibition truss. The purpose of providing the safety rope is to establish another connection between the inclinometer 1 and the laser rangefinder 2 and the exhibition frame to prevent the inclinometer 1 and the laser rangefinder 2 from falling off from the installation position and directly falling to the ground in extreme cases.

[0026] In this embodiment, a small level is also installed on the housing of the inclinometer 1 and the laser rangefinder 2. The small level can be a bubble level or a photoelectric level. The small level is used to ensure the accuracy of the installation posture during the installation and debugging of the inclinometer 1 and the laser rangefinder 2, assist the installation construction personnel to confirm the installation posture, and improve the accuracy of the monitoring data.

[0027] See also Figure 2 , we can see that:

[0028] The inclinometer 1 includes a processor module and an X-axis inclinometer sensor, a Y-axis inclinometer sensor, a wireless communication module and a power module connected to the processor module. The processor module obtains inclinometer data from the X-axis inclinometer sensor and the Y-axis inclinometer sensor. The wireless communication module is used to send inclinometer monitoring data wirelessly. The power module is used to provide power to the inclinometer 1. In this embodiment, the power module of the inclinometer 1 is a rechargeable battery. A charging interface is provided on the housing of the inclinometer 1 for charging before use.

[0029] The laser rangefinder 2 includes a processor module, a laser transmitter, a laser receiver, a wireless communication module and a power module. The processor module controls the laser transmitter and the laser receiver to transmit and receive laser beams, and calculates the distance and displacement change according to the time difference between the sending and receiving of the laser beam. The wireless communication module is used to send displacement monitoring data in a wireless manner, and the power module is used to provide power for the laser rangefinder 2. In this embodiment, the power module of the laser rangefinder 2 is a rechargeable battery, and a charging interface is provided on the housing of the laser rangefinder 2 for charging before use.

[0030] Each inclinometer 1 and laser rangefinder 2 has a unique ID number. After the exhibition truss steel structure is established and the inclinometers 1 and laser rangefinders 2 are installed, each inclinometer 1 and laser rangefinder 2 corresponds to the installation position one by one. When the inclinometer 1 and laser rangefinder 2 with a specific ID number is consulted, the monitoring data of the installation position is obtained.

[0031] It also includes a cloud platform 3 that receives monitoring data wirelessly from the inclinometer 1 and the laser rangefinder 2 and stores the monitoring data, and an enterprise server 4 that obtains the monitoring data from the cloud platform 3. It also includes a mobile terminal 5 and a fixed terminal 6 that obtain and display the monitoring data from the enterprise server 4.

[0032] The cloud platform 3, as the overall system management background, can be built and operated by a centralized equipment service provider, the enterprise server 4 is built and operated by the exhibition enterprise (including exhibition service providers and exhibitors), the mobile terminal 5 is held by exhibition-related personnel, and the fixed terminal 6 is located in the background management center. Specifically, the inclinometer 1 and the laser rangefinder 2 communicate with the cloud platform 3 wirelessly through a wireless communication network (mobile communication network, Internet of Things, etc.), the enterprise server 4 communicates with the cloud platform 3 through a wired or wireless communication network, the mobile terminal 5 is usually a variety of handheld terminals (mobile phones, tablet computers, etc.), usually held by specific executors of the exhibition project, the mobile terminal 5 is connected to the enterprise server 4 through a wireless communication network, and the fixed terminal 6 is usually a desktop computer set up in the enterprise-level management center, which is connected to the enterprise server 4 through a wired or wireless communication network, and is usually operated and managed by enterprise-level background management personnel.

[0033] How to run:

[0034] The exhibition operation and maintenance personnel construct the exhibition truss steel structure according to the design drawings at the exhibition site. Generally, the columns 7 at each node position are constructed first, and then the frame 8 is hoisted and constructed; the inclinometer 1 and the laser rangefinder 2 are correctly installed at the key positions of the exhibition truss steel structure; the following are established on the software interface provided by the cloud platform 3 Figure 3The plan view of the exhibition truss steel structure is shown in the figure, and the inclinometer 1 and the laser rangefinder 2 at the node position in the figure are matched one by one with the inclinometer 1 and the laser rangefinder 2 at the actual position;

[0035] During the use of the exhibition truss steel structure, the multiple inclinometers 1 and laser rangefinders 2 are configured to send the measured inclination monitoring data of the columns 7 and the displacement monitoring data of the frames 8 to the cloud platform 3. After receiving the monitoring data, the cloud platform 3 updates and displays the data on the software interface; the enterprise server 4 obtains the data of the company's exhibition project from the cloud platform 3, and its back-end management personnel check the exhibition truss safety monitoring data through the fixed terminal 6, and its operation and maintenance personnel check the exhibition truss safety monitoring data through the mobile terminal 5; when potential bending and torsional instability and structural damage are found, the operation and maintenance personnel will deal with it in time on site (suspend the use of the exhibition truss, check for dangerous factors and solve risk problems) to avoid the expansion of risks.

Claims

1. An exhibition truss safety monitoring system, characterized by: The invention comprises an inclinometer (1) installed on a column (7) of an exhibition truss and used for monitoring the angle change of the column (7) and a laser rangefinder (2) installed on a frame (8) of the exhibition truss and used for monitoring the displacement change of the frame (8); the inclinometer (1) comprises a processor module and an X-axis inclinometer sensor, a Y-axis inclinometer sensor, a wireless communication module and a power supply module connected to the processor module; the laser rangefinder (2) comprises a processor module, a laser transmitter, a laser receiver, a wireless communication module and a power supply module; the invention also comprises a cloud platform (3) for receiving monitoring data wirelessly from the inclinometer (1) and the laser rangefinder (2) and storing the monitoring data, and an enterprise server (4) for acquiring the monitoring data from the cloud platform (3); and also comprises a mobile terminal (5) and a fixed terminal (6) for acquiring and displaying the monitoring data from the enterprise server (4).

2. The exhibition truss safety monitoring system according to claim 1, characterized in that: The power module of the inclinometer (1) is a rechargeable battery, and the power module of the laser rangefinder (2) is a rechargeable battery.

3. The exhibition truss safety monitoring system according to claim 2, characterized in that: The inclinometer (1) is mounted and fixed on the top side of the column (7), and the laser rangefinder (2) is mounted and fixed on the bottom of both ends and the bottom of the middle of the single crossbeam of the frame (8), and the laser transceiver window of the laser rangefinder (2) faces the ground.

4. The exhibition truss safety monitoring system according to claim 3, characterized in that: The inclinometer (1) is fixedly connected to the column (7) by a movable clamp, and the laser distance meter (2) is fixedly connected to the frame (8) by a movable clamp. Safety ropes are provided between the inclinometer (1) and the laser distance meter (2) and the exhibition truss.

5. The exhibition truss safety monitoring system according to claim 4, characterized in that: A small level is also installed on the housings of the inclinometer (1) and the laser rangefinder (2).

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