Signal acquisition device for building curtain wall safety intelligent alarm

Abstract

The utility model discloses a signal acquisition device for building curtain wall safety intelligent alarm, belongs to the technical field of building structure health monitoring, and solves the technical problem that the existing monitoring system is not high in monitoring precision. The system comprises a control room host and a plurality of signal integration processing modules, the control room host is in wireless communication connection with the signal integration processing modules, and the signal integration processing modules are correspondingly and electrically connected with a plurality of sound wave detection sensors used for receiving instantaneous sound waves generated by damage of the glass curtain wall. Each sound wave detection sensor is correspondingly attached to a glass panel of a glass curtain wall, and each signal integration processing module is installed on a floor panel of a room. According to the utility model, the distributed sound sensing network architecture is adopted, the millisecond sound wave capture response speed is realized through the multi-node piezoelectric sound emission sensor array, the hysteresis of the traditional manual inspection is broken through, the precision is high, the operation and maintenance cost is low, and the system is particularly suitable for large-scale application scenes of super high-rise building groups.

Description

Technical Field

[0001] This utility model relates to the field of building structure health monitoring technology, and more specifically, it relates to a signal acquisition device for intelligent alarm of building curtain wall safety. Background Technology

[0002] With the increasing prevalence of high-rise buildings in cities, glass curtain walls are widely used due to their aesthetic appeal and ability to allow natural light to pass through. However, their safety risks are becoming increasingly prominent. Long-term exposure to wind loads, temperature variations, and material aging can easily lead to cracks and detachment in glass, threatening public safety. Traditional manual inspections and offline monitoring suffer from low efficiency, high costs, and the inability to provide real-time early warnings, necessitating the development of intelligent monitoring methods.

[0003] Currently, the main technologies for detecting / monitoring safety issues of building glass curtain walls include: visual inspection systems based on drone patrols; monitoring systems based on various sensors, such as monitoring systems based on acceleration sensors, monitoring systems based on laser sensors, monitoring systems based on vibration sensors, and multi-sensor integrated monitoring systems.

[0004] The core technology of a drone-based visual inspection system is to use drones equipped with high-definition cameras to capture images of the curtain wall in real time, and then identify surface damage through image comparison. Limitations include: this method is susceptible to lighting conditions and weather conditions, and cannot detect internal micro-cracks; the inspection is time-consuming and labor-intensive, and relies on human operation of the drone to capture image information; and it cannot provide real-time dynamic monitoring of the safety status of the glass curtain wall.

[0005] The core technology of laser sensor-based monitoring systems is to use the reflection characteristics of laser spots formed on the glass surface to detect cracks, combined with a laser rangefinder to monitor curtain wall displacement. However, the cost of deploying the equipment at a single point is high, and if it is necessary to cover the entire high-rise building, the overall economic cost will be too high.

[0006] The core technology of the monitoring system based on acceleration sensors is to assess the risk of detachment by monitoring the displacement acceleration of the glass panel. However, it is not sensitive to early damage and has difficulty distinguishing between structural vibration and environmental disturbance.

[0007] The core technology of the vibration sensor-based monitoring system uses an infrared transmitter-receiver device to detect minute vibrations in the glass. However, it is susceptible to environmental interference and has low monitoring accuracy.

[0008] Multi-sensor integrated monitoring systems integrate multiple sensors, which increases the detection dimensions, but also increases system complexity, equipment cost and power consumption, and the multiple data sources are prone to false alarms. Utility Model Content

[0009] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the existing technology. The purpose of this utility model is to provide a signal acquisition device for intelligent alarm of building curtain wall safety that can improve monitoring accuracy, and is particularly suitable for real-time monitoring and precise positioning of structural damage such as cracking and breakage of glass curtain walls.

[0010] The technical solution of this utility model is: a signal acquisition device for intelligent alarm of building curtain wall safety, including a control room host and several signal integration processing modules. The control room host is wirelessly connected to each of the signal integration processing modules through a communication transceiver module. Each of the signal integration processing modules is electrically connected to several acoustic wave detection sensors for receiving instantaneous sound waves generated by damage to the glass curtain wall. Each of the acoustic wave detection sensors is installed close to the inner side wall of a glass panel of the glass curtain wall. Each of the signal integration processing modules is installed on the floor panel of the room.

[0011] As a further improvement, the acoustic wave detection sensor is a piezoelectric acoustic emission sensor.

[0012] Furthermore, the acoustic wave detection sensor is installed on the main keel of the glass curtain wall using a high-strength adhesive, and the sensing part of the acoustic wave detection sensor is attached to the glass panel using a special acoustic emission coupling agent.

[0013] Furthermore, the high-strength adhesive is an epoxy resin adhesive.

[0014] Furthermore, the acoustic emission coupling agent is silicone grease or a special acoustic gel.

[0015] Furthermore, the acoustic wave detection sensor is installed at the corner of the glass panel.

[0016] Furthermore, the signal integration and processing module is electrically connected to each of the acoustic wave detection sensors through a multi-channel pin header interface.

[0017] Furthermore, the signal integration processing module is an STM32L4R9 microcontroller.

[0018] Furthermore, the communication transceiver module is an ESP8266 wireless communication module.

[0019] Furthermore, the signal integration and processing module is electrically connected to a positioning chip, which is a QorvoDW3110 UWB wireless positioning chip.

[0020] Beneficial effects

[0021] Compared with the prior art, the advantages of this utility model are as follows:

[0022] 1. Integrated positioning function: The positioning chip is embedded in the signal integration and processing module to capture the sound source signal of the injury and report the real-time location information at the same time, thus building a room-level grid positioning system, which can significantly improve the positioning accuracy of injury events.

[0023] 2. Real-time dynamic monitoring system innovation: Adopting a distributed acoustic sensor network architecture, the system achieves millisecond-level acoustic wave capture response speed through a multi-node piezoelectric acoustic emission sensor array, overcoming the lag of traditional manual inspection.

[0024] 3. Economic and Technological Innovation: The integrated processing unit design in a single room reduces wiring costs. It reuses the building's existing power supply network, eliminating the need for a separate power system.

[0025] This invention transforms traditional passive detection into proactive preventive maintenance, which can reduce overall operation and maintenance costs and is particularly suitable for large-scale application scenarios of super high-rise building complexes. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the present utility model;

[0027] Figure 2 This is a schematic diagram of the installation of the acoustic wave detection sensor in this utility model;

[0028] Figure 3 This is a schematic diagram showing the acoustic wave detection sensor installed at the corner of the glass panel in this utility model;

[0029] Figure 4 This is a schematic diagram of the present invention installed inside a building.

[0030] The components are: 1-Control room host, 2-Signal integration and processing module, 3-Acoustic wave detection sensor, 4-Glass panel, 5-Floor panel, 6-Multi-channel pin header interface, 7-Positioning chip, 8-Main keel, 9-Communication transceiver module, 10-Power module, 11-Display, 12-Indicator light, 13-Signal line. Detailed Implementation

[0031] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0032] See Figures 1-4A signal acquisition device for intelligent alarm of building curtain wall safety includes a control room host 1 and several signal integration processing modules 2. The control room host 1 is wirelessly connected to each signal integration processing module 2 through a communication transceiver module 9. Each signal integration processing module 2 is electrically connected to several acoustic wave detection sensors 3 for receiving instantaneous sound waves generated by damage to the glass curtain wall. Each acoustic wave detection sensor 3 is attached to the inner wall of a glass panel 4 of the glass curtain wall. Each signal integration processing module 2 is installed on the floor panel 5 of the room.

[0033] Each acoustic wave detection sensor 3 collects the instantaneous acoustic waves generated when each glass panel 4 is damaged in real time. The signals detected by several acoustic wave detection sensors 3 are collected into a signal integration processing module 2. Each signal integration processing module 2 then uploads the collected detection signals and the location information of the generated signals to the host computer 1 in the control room for subsequent analysis and alarm.

[0034] Preferably, the acoustic wave detection sensor 3 is a piezoelectric acoustic emission sensor, which has a fast acoustic wave capture response speed and high accuracy.

[0035] Specifically, the acoustic wave detection sensor 3 is installed on the main keel 8 of the glass curtain wall using a high-strength adhesive, and the sensing part of the acoustic wave detection sensor 3 is attached to the glass panel 4 using a special acoustic emission coupling agent. The high-strength adhesive is epoxy resin glue, suitable for long-term fixation. The special acoustic emission coupling agent is silicone grease or a special acoustic gel, the purpose of which is to fill microscopic gaps and reduce the energy loss of sound waves at the interface.

[0036] A gap of at least 18mm must be reserved between the main keel 8 and the glass panel 4 to provide a space for the installation of the piezoelectric acoustic emission sensor.

[0037] Preferably, the acoustic wave detection sensor 3 is installed at the corner of the glass panel 4 for easy installation and wiring.

[0038] The installation method of the acoustic wave detection sensor 3 and the signal integrated processing module 2 in the room is as follows: Figure 4As shown. At least one signal integration processing module 2 is installed in each room and fixed to the floor panel 5 with bolts. The single-room integration processing unit design reduces wiring costs. It reuses the building's existing power supply network, eliminating the need for a separate power system. The signal integration processing module 2 has at least two types of transmission interfaces: one is a DC socket (5.5×2.1mm) for connecting an external power adapter, supporting a wide voltage input of 5-12V; the other is a multi-channel pin header interface 6 for connecting acoustic wave detection sensors 3, using a multi-channel synchronous sampling ADC (such as ADS1278, 8 channels, 24 bits, 128kSPS) to ensure phase consistency of the acoustic signal. The acoustic wave detection sensors 3 are connected to the signal integration processing module 2 via signal line 13 and the multi-channel pin header interface 6. Preferably, the signal integration processing module 2 uses an STM32L4R9 microcontroller with a built-in 16-channel 12-bit ADC (analog-to-digital converter). Each channel independently acquires the sensor's analog signal, therefore each signal integration processing module 2 can connect to a maximum of 16 acoustic wave detection sensors 3.

[0039] The communication transceiver module 9 is an ESP8266 wireless communication module. The signal integration and processing module 2 adopts the IEEE 802.11b / g / n protocol (2.4GHz band), accesses the building's existing WiFi network through the STA mode of the ESP8266 wireless communication module, communicates with the control room host 1, and transmits data packets containing acoustic data and positioning data to the control room host 1.

[0040] Furthermore, the signal integration and processing module 2 is electrically connected to a positioning chip 7, which is a Qorvo DW3110UWB wireless positioning chip. When the signal integration and processing module 2 receives acoustic data (i.e., instantaneous acoustic signals) from the acoustic wave detection sensor 3, it activates the positioning chip, which then transmits the positioning data information to the signal integration and processing module 2. The signal integration and processing module 2 fuses and packages the positioning data information and acoustic data, and transmits it to the control room host 1 via the wireless communication transceiver module. The positioning data information can provide monitoring personnel with information on glass curtain wall safety issues and the approximate location of the safety issues, thereby enabling rapid and efficient maintenance and handling of the glass curtain wall structure.

[0041] The power module 10 supplies power to the signal integration processing module 2, the positioning chip 7, and the communication transceiver module 9, and the signal integration processing module 2 can control the power module 10 to supply power to the positioning chip 7 and the communication transceiver module 9.

[0042] Furthermore, indicator lights 12 can be installed on the acoustic wave detection sensor 3, or corresponding indicator lights 12 can be installed on the signal integration and processing module 2. After receiving the acoustic data (i.e., instantaneous acoustic wave signal) from the acoustic wave detection sensor 3, the signal integration and processing module 2 controls the indicator light 12 corresponding to that acoustic wave detection sensor 3 to light up, further facilitating monitoring personnel to quickly locate the location of safety problems in the glass curtain wall. The wires of the indicator lights 12 are tied together with the signal wires of the acoustic wave detection sensor 3. Of course, heat shrink tubing can also be used to cover the wires of the indicator lights 12 and the signal wires of the acoustic wave detection sensor 3 to improve stability.

[0043] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A signal acquisition device for intelligent alarm systems for building curtain walls, characterized in that, The system includes a control room host (1) and several signal integration processing modules (2). The control room host (1) is wirelessly connected to each of the signal integration processing modules (2) via a communication transceiver module (9). Each of the signal integration processing modules (2) is electrically connected to several acoustic wave detection sensors (3) for receiving instantaneous sound waves generated by damage to the glass curtain wall. Each of the acoustic wave detection sensors (3) is installed close to the inner wall of a glass panel (4) of the glass curtain wall. Each of the signal integration processing modules (2) is installed on the floor panel (5) of the room.

2. The signal acquisition device for intelligent alarm of building curtain wall safety according to claim 1, characterized in that, The acoustic wave detection sensor (3) is a piezoelectric acoustic emission sensor.

3. The signal acquisition device for intelligent alarm of building curtain wall safety according to claim 1, characterized in that, The acoustic wave detection sensor (3) is installed on the main keel (8) of the glass curtain wall with a high-strength adhesive, and the sensing part of the acoustic wave detection sensor (3) is attached to the glass panel (4) with a special acoustic emission coupling agent.

4. The signal acquisition device for intelligent alarm of building curtain wall safety according to claim 3, characterized in that, The high-strength adhesive is an epoxy resin adhesive.

5. A signal acquisition device for intelligent alarm of building curtain wall safety according to claim 3, characterized in that, The acoustic emission coupling agent is either silicone grease or a special acoustic gel.

6. A signal acquisition device for intelligent alarm of building curtain wall safety according to any one of claims 1-5, characterized in that, The acoustic wave detection sensor (3) is installed at the corner of the glass panel (4).

7. A signal acquisition device for intelligent alarm of building curtain wall safety according to claim 1, characterized in that, The signal integration processing module (2) is electrically connected to each of the acoustic wave detection sensors (3) through a multi-channel pin header interface (6).

8. A signal acquisition device for intelligent alarm of building curtain wall safety according to claim 1, characterized in that, The signal integration processing module (2) is an STM32L4R9 microcontroller.

9. A signal acquisition device for intelligent alarm of building curtain wall safety according to claim 1, characterized in that, The communication transceiver module (9) is an ESP8266 wireless communication module.

10. A signal acquisition device for intelligent alarm of building curtain wall safety according to any one of claims 1-9, characterized in that, The signal integration processing module (2) is electrically connected to a positioning chip (7), which is a Qorvo DW3110 UWB wireless positioning chip.

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