Tunnel monitoring data acquisition equipment structure

Abstract

The utility model provides a tunnel monitoring data acquisition equipment structure. The tunnel monitoring data acquisition equipment structure comprises main acquisition equipment, a main wireless spread spectrum module, wherein the main wireless spread spectrum module is in electric signal connection with the main acquisition equipment; the system comprises slave acquisition devices and slave wireless spread spectrum modules, the slave acquisition devices comprise a first slave acquisition device and a second slave acquisition device, the slave wireless spread spectrum modules comprise a first slave wireless spread spectrum module and a second slave wireless spread spectrum module, the first slave acquisition device is in electric signal connection with the first slave wireless spread spectrum module, and the second slave acquisition device is in electric signal connection with the second slave wireless spread spectrum module. The second slave acquisition device is in electric signal connection with the second slave wireless spread spectrum module; and the master wireless spread spectrum module, the first slave wireless spread spectrum module and the second slave wireless spread spectrum module are in wireless communication connection. According to the utility model, the technical problems that a large number of tunnel signal connecting lines are laid, the cable may be eroded after being used for a long time to cause faults, and troubleshooting is inconvenient can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel information monitoring, in particular to a tunnel monitoring data acquisition device structure. Background Art

[0002] In order to provide network signals in relatively closed tunnels, the traditional method is to lay signal connection cables of network operators in the tunnel. Due to the special structure of the tunnel and limited space, the structure of the tunnel will block and refract the signal, affecting the quality of signal transmission. Compared with the general roads outside the tunnel, the environmental conditions inside the tunnel are usually harsher, such as humidity, high temperature, dust, etc. These factors will have a negative impact on the signal connection cable, accelerate the aging and corrosion of the cable, and reduce the quality of signal transmission.

[0003] If there are too many cables, some of them may be corroded and malfunction after long-term use, but the faults are often difficult to detect and repair in time, and the signal quality will gradually decrease over time. In addition, safety issues need to be considered when laying signal connection cables in tunnels. At the same time, the normal passage and driving safety of the tunnel must not be affected. Installation and maintenance also need to be carried out under the premise of ensuring the safety of personnel. Therefore, there are safety hazards in the process of laying signal connection cables for network operators in complex tunnels, and the cables may be corroded and malfunction after long-term use, which is inconvenient to use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model proposes a tunnel monitoring data acquisition device structure to solve the technical problems in the prior art that due to the large number of tunnel signal connection lines being laid, the cables may be corroded and fail after long-term use, resulting in inconvenience in troubleshooting.

[0005] The technical solution adopted by the utility model is a tunnel monitoring data acquisition device structure, comprising a main acquisition device, which is installed at the tunnel entrance and is used to send acquisition instructions and process data;

[0006] A main wireless spectrum expansion module, which is electrically connected to the main acquisition device;

[0007] A slave acquisition device and a slave wireless spectrum expansion module, the slave acquisition device includes a first slave acquisition device and a second slave acquisition device, the slave wireless spectrum expansion module includes a first slave wireless spectrum expansion module and a second slave wireless spectrum expansion module, the first slave acquisition device is electrically connected to the first slave wireless spectrum expansion module, the second slave acquisition device is electrically connected to the second slave wireless spectrum expansion module, and the master wireless spectrum expansion module, the first slave wireless spectrum expansion module and the second slave wireless spectrum expansion module are connected by wireless communication.

[0008] Furthermore, the wireless communication method is wireless MESH bridging.

[0009] Furthermore, the main wireless spectrum expansion module is connected to the main acquisition device via RS485 bus electrical signals.

[0010] Furthermore, it also includes a 4G module, the main acquisition device is electrically connected to the 4G module, and the main acquisition device communicates remotely with the Internet through the 4G module.

[0011] Furthermore, it also includes a power supply module, which is electrically connected to the main acquisition device.

[0012] Furthermore, the model of the main acquisition device is the HK-DS-16 intelligent digital acquisition instrument of Chongqing Road Monitoring Technology Co., Ltd., and the model of the slave acquisition device is the WSY-1 sensor of Zhixiangyu Co., Ltd.

[0013] Furthermore, the master wireless spectrum expansion module and the slave wireless spectrum expansion module respectively use directional antennas.

[0014] It can be seen from the above technical solution that the beneficial technical effects of the utility model are as follows:

[0015] The utility model provides a tunnel monitoring data acquisition device structure, which is provided with a main wireless spread spectrum module and a first slave wireless spread spectrum module and a second slave wireless spread spectrum module, so that the main wireless spread spectrum module and the first slave wireless spread spectrum module and the second slave wireless spread spectrum module use a wireless bridge to perform wireless communication, thereby reducing the laying of signal connection lines in the tunnel. Compared with the prior art, the equipment maintenance of the utility model is more convenient, and most of the maintenance work can be completed by maintaining the main acquisition device, the slave acquisition device and the spread spectrum module, which can avoid the problem of easy erosion and failure due to too many cables, and reduce the failure rate of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 The present invention provides a schematic diagram of the overall structure of a tunnel monitoring data acquisition device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0019] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0020] like Figure 1 As shown, this embodiment provides a tunnel monitoring data acquisition device structure, including a main acquisition device, which is installed at the tunnel entrance and is used to send acquisition instructions and process data;

[0021] The main wireless spectrum expansion module is connected to the main acquisition device via electrical signals, and the wireless spectrum expansion module is connected to the main acquisition device via RS485 bus electrical signals. The main acquisition device transmits the wired signal to the main wireless spectrum expansion module via RS485 bus. The main wireless spectrum expansion module receives the wired signal from the main acquisition device and converts it into a wireless signal.

[0022] This embodiment also includes a slave acquisition device and a slave wireless spectrum expansion module. In this embodiment, the slave acquisition device is preferably installed at the monitoring point in the tunnel to collect information in the tunnel at the monitoring point in the tunnel, such as temperature, humidity, strain and vibration parameters in the tunnel; in this embodiment, the model of the master acquisition device is the HK-DS-16 intelligent digital acquisition instrument of Chongqing Road Monitoring Technology Co., Ltd., and the model of the slave acquisition device is the WSY-1 sensor of Zhixiangyu Co., Ltd. The master wireless spectrum expansion module and the slave wireless spectrum expansion module respectively use directional antennas, and the directional orientation is oriented according to the actual tunnel direction to optimize the communication effect of the wireless spectrum expansion.

[0023] Further, as a preferred solution of this embodiment, Figure 1As shown, the slave acquisition device includes a first slave acquisition device and a second slave acquisition device, and the slave wireless spectrum expansion module includes a first slave wireless spectrum expansion module and a second slave wireless spectrum expansion module (it should be noted that the two slave acquisition devices in this embodiment are only used as an example. In actual application, multiple slave acquisition devices can be set according to the length of the tunnel and other structures). The first slave acquisition device is electrically connected to the first slave wireless spectrum expansion module, and the second slave acquisition device is electrically connected to the second slave wireless spectrum expansion module. The main wireless spectrum expansion module, the first slave wireless spectrum expansion module and the second slave wireless spectrum expansion module are wirelessly connected in a preset manner, and the preset manner is wireless MESH bridging. Compared with the existing technology of laying tunnels with a large number of cables, this embodiment converts the wired acquisition mode of the monitoring system in the tunnel into a wireless mode, thereby reducing the construction volume of the early tunnel monitoring equipment wiring, and thus reducing the wiring risk of the staff in the early construction. In addition, this embodiment uses wireless MESH bridging technology to effectively extend the wireless signal through the sensor node, so that even if the master station and the slave station are too far apart, the nodes between the tunnels can communicate with each other.

[0024] Further, it can be understood that the spread spectrum modules of the master acquisition device and the slave acquisition device are respectively configured with routing tables, so the acquisition instructions sent by the master acquisition device include the transit slave station address information and the target slave station address information, and the routing table of the slave acquisition device contains the slave station address data.

[0025] Specifically, when used, the following steps are included: Step 1: When each slave acquisition device receives a signal from the master acquisition device, it first reads the information in the routing table.

[0026] Step 2: If the slave address of the acquisition device is in the acquisition instruction, set the slave address data flag of the acquisition instruction to prevent secondary routing, and then forward the information. Step 3: If there is no such address in the routing table, remain silent.

[0027] Step 4: Repeat the above steps for the next slave.

[0028] Step 5: Until the acquisition device is consistent with the target address, the data packet is marked as a return state and the routing table is re-enabled.

[0029] Step 6: The target returns a data packet from the acquisition device.

[0030] Step 7: Each slave acquisition device receives data and repeats steps 2 to 4 until all routing tables are set. The MESH bridging process ends, and sensor data acquisition is completed. The master acquisition device does not respond to multiple request packets received. The master acquisition device only responds once to multiple return packets received, and the rest of the data is discarded.

[0031] Further, such as Figure 1As shown, it also includes a 4G module. The main acquisition device is connected to the 4G module by electrical signals. The main acquisition device communicates remotely with the Internet through the 4G module to transmit the information in the tunnel collected by the main acquisition device to the Internet. In addition, since all data collected from the acquisition device are parsed and processed by the local device, the transmission of invalid data is reduced, thereby reducing the 4G remote data transmission bandwidth and traffic, and the transmission efficiency is high.

[0032] Preferably, this embodiment further includes a power module, and the power module is electrically connected to the main acquisition device. It should be noted that the power module electrically connected to the main acquisition device adopts close-point power distribution to minimize the length of the power cable.

[0033] That is, this embodiment provides a tunnel monitoring data acquisition equipment structure, which is provided with a main wireless spread spectrum module and a first slave wireless spread spectrum module and a second slave wireless spread spectrum module, so that the main wireless spread spectrum module and the first slave wireless spread spectrum module and the second slave wireless spread spectrum module use wireless bridging to perform wireless communication, thereby reducing the laying of signal connection lines in the tunnel, using wireless sensor topology, low network coverage cost, meeting the low latency requirements of sensor acquisition, and good synchronization, while using spread spectrum technology, with the same power consumption doubled than the traditional radio frequency communication distance, high reliability, strong anti-interference ability, and high receiving sensitivity. Compared with the prior art, the equipment maintenance of the utility model is more convenient, and most of the maintenance work can be completed by maintaining the main acquisition equipment, the slave acquisition equipment and the spread spectrum module, which can avoid the problem of easy erosion and failure due to too many cables, and reduce the failure rate of the equipment.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A tunnel monitoring data acquisition equipment structure, characterized in that: It includes a main acquisition device, which is installed at the entrance of the tunnel and is used to send acquisition instructions and process data; A main wireless spectrum expansion module, which is electrically connected to the main acquisition device; A slave acquisition device and a slave wireless spectrum expansion module, the slave acquisition device includes a first slave acquisition device and a second slave acquisition device, the slave wireless spectrum expansion module includes a first slave wireless spectrum expansion module and a second slave wireless spectrum expansion module, the first slave acquisition device is electrically connected to the first slave wireless spectrum expansion module, the second slave acquisition device is electrically connected to the second slave wireless spectrum expansion module, and the master wireless spectrum expansion module, the first slave wireless spectrum expansion module and the second slave wireless spectrum expansion module are wirelessly connected.

2. The tunnel monitoring data acquisition equipment structure according to claim 1 is characterized in that: The wireless communication connection is a wireless MESH bridge.

3. The tunnel monitoring data acquisition equipment structure according to claim 1 is characterized in that: The main wireless spectrum expansion module is connected to the main acquisition device via RS485 bus electrical signals.

4. The tunnel monitoring data acquisition equipment structure according to claim 1 is characterized in that: It also includes a 4G module, the main acquisition device is electrically connected to the 4G module, and the main acquisition device communicates remotely with the Internet through the 4G module.

5. The tunnel monitoring data acquisition equipment structure according to claim 1 is characterized in that: It also includes a power module, which is electrically connected to the main acquisition device.

6. The tunnel monitoring data acquisition equipment structure according to claim 1 is characterized in that: The master wireless spectrum expansion module and the slave wireless spectrum expansion module respectively use directional antennas.

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