Load bearing monitoring system based on active protective net

Abstract

The utility model provides a bearing monitoring system based on an active protective net, which belongs to the field of safety protection and comprises a data sensor, a monitoring alarm device, a cloud processor and a plurality of anchor rods. The anchor rods are used for fixing the active protective net on the slope surface; a dynamometer is arranged on each anchor rod; the dynamometer is connected with the data sensor in a wired mode; the cloud processor communicates with the data sensor and the monitoring alarm device. The technical problems that in the prior art, monitoring of the bearing state of the active protection net is poor in timeliness and low in accuracy, and meanwhile manpower cost is consumed are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of safety protection, especially relates to a bearing monitoring system based on initiative protection net. BACKGROUND

[0002] The statements in this section merely provide background information related to the utility model and do not necessarily constitute the prior art.

[0003] As a common slope protection structure, initiative protection net is widely used in many slope treatments to prevent the harm of rolling and falling stones on the slope to human body. Most of the existing initiative protection nets are protected by integral protection nets, that is, a huge protection net is directly anchored at the position of the slope where the stones fall off. However, the following two technical problems still exist in the prior art.

[0004] 1. When there are more falling rocks at the position protected by the initiative protection net, the bearing capacity of the initiative protection net is insufficient, which may cause falling risk and safety hazard. The bearing condition of the protection net is generally judged by manual work. This way has poor timeliness and low accuracy in monitoring the bearing state of the initiative protection net, and consumes labor cost.

[0005] 2. When the protection net is replaced, the slope is also relatively steep, and the risk is greater if the replacement lasts for a long time.

[0006] 3. The ordinary protection net has no problem in protecting large stones, but may miss small stones. Although the small stones are not large, they still have potential danger to the vehicles driving at high speed on the road.

[0007] 4. The anchor point is replaced by a complex device that can provide early warning, but the installation and maintenance cost is high. CONTENT OF THE UTILITY MODEL

[0008] The utility model aims to provide a bearing monitoring system based on initiative protection net to solve the technical problem of poor timeliness and low accuracy in monitoring the bearing state of the initiative protection net and consuming labor cost in the prior art.

[0009] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0010] The utility model provides a bearing monitoring system based on initiative protection net, which comprises a monitoring and alarm device, a cloud processor, an initiative protection net and an anchor rod.

[0011] The anchor rod is used for fixing the initiative protection net on the slope.

[0012] A dynamometer is arranged on the anchor rod.

[0013] The data sensor is installed on the monitoring alarm device;

[0014] The force gauge is connected with the data sensor through a cable;

[0015] The cloud processor communicates with the monitoring alarm device;

[0016] The anchor rod is provided with quick-release devices at the upper portion, which are used for fixing and dismounting the active protective net.

[0017] Further, the anchor rod comprises an anchor head and an anchor body;

[0018] The anchor head is vertically fixed at the top of the anchor body, and the transverse sectional area of the anchor head is larger than that of the anchor body;

[0019] The bottom of the anchor body is in a pointed structure.

[0020] Further, the anchor head is provided with quick-release devices at the upper portion, and the force gauge is arranged at the lower portion of the anchor head.

[0021] Further, each quick-release device is provided with four claw structures.

[0022] Further, the anchor head is provided with four bolt holes at the top, and the claw structures are fixed with threaded columns at the bottom; and each threaded column is screwed with the corresponding bolt hole.

[0023] Further, each claw structure is fixed with a corner of the active protective net.

[0024] Further, the cable is provided with a cable tube.

[0025] Further, the cable tube is close to the edge or the joint of the active protective net.

[0026] Further, the force gauge is strain type.

[0027] Further, the monitoring alarm device is arranged below the slope foot and away from the slope surface.

[0028] The technical scheme of the utility model has the following beneficial effects:

[0029] 1. The utility model sets the force gauge on the anchor rod, and when the force of a certain area exceeds the threshold value, the audible and visual alarm is started to alarm and remind the staff to replace the active protective net, so that the harm caused by the limit of the bearing force is prevented, the timeliness and accuracy of monitoring the bearing state of the active protective net are improved, and the manpower is reduced.

[0030] 2. The anchor head of the utility model is provided with quick-release devices at the upper portion, so that the protective net can be quickly replaced, the working time on the dangerous and steep slope surface is reduced, and the working efficiency and safety of the maintenance personnel are improved.

[0031] 3、The utility model discloses active protection net adopts the dense protection net, even if the gravel of small size can be intercepted easily, improves the security of the road under the slope.

[0032] 4、The active protection net bearing early warning system of the utility model reduces the overall system cost budget on the experience of prior art, and is simple in structure, convenient to operate, low in cost, strong in reliability, wide in compatibility, good in stability, easy to replace and maintain when problems occur, does not cause influence and damage to the original structure of the active protection net, and reliable monitoring data realize stress monitoring calculation of the overall structure and exclude other influence factors.

[0033] The advantages of the additional aspects of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0034] The drawings accompanying the specification provide further understanding of the utility model, and the schematic embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model.

[0035] Figure 1 A scene schematic view of the active protection net bearing monitoring system provided by the utility model.

[0036] Figure 2 A schematic view of the anchor rod with a dynamometer provided by the utility model.

[0037] Figure 3 A schematic view of the claw type structure of the utility model.

[0038] Figure 4 A schematic view of the bolt hole structure on the anchor head of the utility model.

[0039] Figure 5 A schematic view of the claw type structure and anchor head installation of the utility model.

[0040] Wherein: 1, anchor rod; 2, protection net; 3, monitoring alarm device; 4, cloud processor; 5, cable; 6, slope; 7, dynamometer; 8, cable tube; 9, anchor head; 91, bolt hole, 10, anchor body; 11, quick release device; 12, claw type structure; 121, threaded column. DETAILED DESCRIPTION

[0041] It should be noted that the following detailed description is exemplary, and is intended to provide further explanation of the utility model. Unless otherwise specified, all technical and scientific terms used in this paper have the same meaning as that generally understood by ordinary skilled persons in the technical field to which the utility model belongs.

[0042] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application.

[0043] In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0044] As Figure 1 shown, a bearing monitoring system based on active protective net, comprising: monitoring alarm device 3, cloud processor 4 and a plurality of anchor rod 1 installed force meter 7, a plurality of anchor rope, quick release device 11, cable line pipe 8, a plurality of active protective net 2 and protective net framework. Among them, monitoring alarm device 3 is separately arranged in the safe position opposite the road, and data sensor is installed on monitoring alarm device 3.

[0045] In a specific embodiment, the active protective net 2 is a dense anti-skid net, and a part of the dense protective net is connected with the anchor rod 1 by using the quick release device, and the remaining part is installed on the protective net framework.

[0046] First, install the protective net framework on the required slope 6 position, then fix the anchor rod 1 at the stable position on the slope top, and the anchor rod 1 is the force point; the anchor rope pulls the anchor rod 1 but does not bear force alone, and in normal circumstances, all forces are borne by the anchor rod 1, and when the force exceeds the threshold value, the anchor rope begins to bear force temporarily.

[0047] After laying the dense protective net from top to bottom, each dense protective net is stitched with the protective net framework support rope by using steel rope and pre-tensioned, and the two ends of the stitching rope are fixed and connected, wherein the steel rope has a diameter of more than 8 mm.

[0048] In a specific embodiment, holes are drilled in a relatively firm place, and after inserting the anchor rod 1, grouting is carried out, and high-strength concrete, high-strength concrete or expansive concrete can be selected for grouting according to specific conditions.

[0049] As Figure 2 shown, the anchor rod 1 comprises an anchor head 9 and an anchor body 10, the anchor head 9 is vertically fixed on the top of the anchor body 10, and the transverse sectional area of the anchor head 9 is larger than that of the anchor body 10, the bottom of the anchor body 10 is a pointed structure, which is convenient for fixing on the slope 6, the upper part of the anchor head 9 is provided with a quick release device 11 for installing the active protective net 2, and the lower part of the anchor head 9 is provided with a force meter 7, which is a ring-shaped device. In a specific embodiment, the monitoring alarm device comprises a monitoring camera, an alarm device, a data sensor and a storage battery. The monitoring camera is used for collecting the picture of the active anti-skid net on the slope, and the picture is transmitted remotely through the cloud processor, so as to realize remote monitoring of the active protective net on the slope. The alarm device comprises an audible and visual alarm, which is used for audible and visual alarm when the force of the active protective net 2 exceeds the threshold value, so as to remind the staff to handle.

[0050] The monitoring camera, alarm device and data sensor can be powered by a battery, the monitoring camera and alarm device are connected with the data sensor, the camera transmits the real-time picture shot to the cloud processor, and the cloud processor is identified by artificial recognition, if alarm is needed, the data sensor is returned by the cloud, and the data sensor controls the alarm device to warn.

[0051] The monitoring camera, alarm device and data sensor can be selected according to the required function and actual situation. The monitoring camera needs to have infrared function, wide-angle function, lens can rotate up and down and left and right, video effect is clear, and can be partially enlarged. The alarm (warning) device can adopt a traditional sound and light alarm, which flashes a dazzling red light and emits a sound alarm after receiving the warning signal. The data sensor continuously transmits all signals to the cloud processor and can receive the signal control of the monitoring camera and the alarm device from the cloud processor. The battery can use a rechargeable and dischargeable ordinary lithium iron phosphate battery.

[0052] The cloud processor includes a physical service layer, a virtualization layer, a network connection device and a storage device. Specifically, the physical service layer provides basic computing capability, and at the same time provides a service window for artificial intelligence. Through the service window, live images transmitted by the monitoring device can be watched. The virtualization layer realizes fast resource allocation calculation of all data transmission to the cloud through virtualization technology. The network connection device ensures the stability of the transmission signal between the cloud and each port. The storage device stores service area images and data materials for more than half a year. According to the actual situation, the service range can be built to build a service platform and hardware facilities.

[0053] When artificial intelligence finds problems through the monitoring device, the warning signal can be sent to the data sensor through the cloud. The data sensor receives the signal and controls the alarm device to start warning.

[0054] Under normal circumstances, the monitoring alarm device uses the power grid of the street lamp to provide energy, and when special circumstances (including heavy rain and strong wind that may affect normal power supply) affect the overall power supply of the monitoring alarm device, the battery is used to provide energy. The data sensor has data transmission function, and at the same time uses the line of the street lamp to provide power for it, part of the power is stored in the battery for use in bad weather, and in rainy or windy weather, the external power supply and the battery are used at the same time to ensure the stable power supply of the whole system.

[0055] In a specific embodiment, the data sensor is connected to each load cell 7 through a cable 5. When the anchor head 9 is stressed, the load cell 7 obtains data and transmits the stress data to the data sensor through the cable 5. The cable 5 can provide power to each load cell 7 while transmitting signals. The load cell 7 is strain type, and all signals are transmitted to the slope foot through the cable 5 covered with a wire tube. The wire tube is a circular sleeve, and the cable 5 is connected to the data sensor on the opposite side of the road through an underground way, ensuring that the falling of the gravel does not affect the accuracy of the data sensor.

[0056] In a specific embodiment, the strain signal of the load cell 7 is determined according to the stress of the anchor head 9. The upper quick-release device 11 of the anchor head 9 is hung with the active protective net 2, and the obstacles falling from the slope 6 are clamped in the air under the interception of the active protective net 2, causing the stress of the anchor head 9 to change, and at this time, the data of the load cell 7 changes. The active protective net 2 is opened and covers the protected slope 6, and each anchor head 9 quick-release device 11 opens the active protective net 2 to make each load cell 7 have an initial value.

[0057] In a specific embodiment, each anchor head 9 is fixed with four active protective nets 2 in four directions, and the quick-release device 11 includes four claw structures 12. Each extended claw structure 12 will hang a dense protective net, and the stress value of the load cell 7 is obtained by pulling the dense protective net in the opposite direction.

[0058] The quick-release device 11 on the anchor head 9 is a hanging and pressing type, as shown in Figure 4 There are four bolt holes 91 on the top of each anchor head 9. As shown in Figure 3 Each claw structure 12 is fixed with a threaded column 121 at the bottom, and the claw structure 12 and the threaded column 121 are an integral structure.

[0059] As shown in Figure 5 Each threaded column 121 is screwed and fixed with the corresponding bolt hole 91 on the top of the anchor head 9. Each claw structure 12 is connected to the load cell 7 in a wired form. When each claw structure 12 is stressed, the received force is transmitted to the load cell in real time. By comprehensively considering the stress conditions of the four claw structures 12, the load cell obtains accurate values. When the active protective net is maintained or replaced, only the claw structure 12 needs to be rotated, and the threaded column 121 is rotated out of the threaded hole, which realizes the quick disassembly of the protective net and improves the work efficiency of maintenance and replacement.

[0060] In a specific embodiment, the anchor rod 1 is drilled at the slope top stability to link the anchor rope. After fixing the anchor rope at the top of the slope, the anchor rope is lowered from the top to the intersection of the protective net and the protective net. The reserved hole is passed through the winding and fixing at each anchor head. Until the last anchor head is fixed, a pit is dug at the slope foot. The anchor rope is fixed on the concrete pile by using concrete pile. Then, the anchor rope is reburied.

[0061] Under normal circumstances, the anchor rope is not stressed. When the active protective net 2 is stressed beyond the threshold value, the anchor rope is temporarily stressed, which serves as a safety guarantee.

[0062] In a specific embodiment, when all the active protective nets 2 are used, the anchor body 10 is fixed in a safe position or a drilled hole. The anchor body 10 is fixed by expansion screws or cement. At the same time, the quick release device 11 is installed on the anchor head 9 to control the stress of the active protective net 2 and the protective net framework. At this time, the quick release device 11 transmits the force to the anchor head 9. The force meter 7 below the anchor head 9 collects data. The data is stably transmitted to the data sensor through the cable 5 wrapped in the cable tube 8. The cable tube 8 is distributed close to the edge or the intersection of the active protective net 2 without affecting the stress properties of the active protective net 2.

[0063] In a specific embodiment, after the data sensor collects the data of the force meter 7, the data is transmitted to the cloud processor 4. After the cloud processor 4 receives all the data, the stress degree of the current active protective net 2 is calculated. The stress degree is compared with the preset threshold value of the active protective net 2. If the stress degree exceeds the threshold value, the active protective net 2 whose stress exceeds the threshold value will be replaced. The actual situation can be observed through the on-site monitoring camera. When the stress of a certain area exceeds the threshold value, the sound and light alarm will be used for early warning. At the same time, the staff will replace the active protective net 2 and the framework. It should be noted that the stress degree of the current active protective net 2 is obtained by the existing technology. Specifically, after the anchor head 9 is stressed, the force meter 7 obtains the stress parameter. After the stress parameter is transmitted to the cloud processor 4, the actual stress is multiplied by the preset stress coefficient of each anchor point. Finally, the total stress value can be obtained. The specific process of the calculation of the cloud processor is the existing technology, which will not be described in detail here.

[0064] In a specific embodiment, when the active protective net 2 is replaced due to stress exceeding the threshold value, the worker only needs to first release the force of the quick release device 11 of the anchor head 9 corresponding to the active protective net 2 area whose stress exceeds the threshold value. Then, the quick release device 11 of the anchor head 9 around the active protective net 2 is disassembled. The active protective net 2 can be replaced. Then, the active protective net 2 is fixed on the quick release device 11. The stress of the anchor head 9 is restored to the initial value.

[0065] The working principle of the utility model is as follows:

[0066] Install the active protection net 2 at an appropriate location on the slope 6 where it needs to be installed. Install the force gauge 7 at the bottom of the anchor head 9 and simultaneously lay the cable 5. The cable 5 is covered with a cable conduit 8 and fixed along the slope 6 without obstructing the force on the active protection net 2.

[0067] After the anchor bolt 1 is installed, when arranging the active protection net 2 and the protective net frame, the active protection net 2 around the perimeter is fixed and installed by the quick-release device 11 on the upper part of the anchor head 9, and the net surface is tightened so that the active protection net 2 fits tightly against the slope surface 6. At the same time, the force gauge 7 obtains the initial value.

[0068] Select a safe location monitoring and alarm device 3 on the opposite side of the road. The monitoring and alarm device 3 is equipped with a data sensor. At the same time, connect the data sensor to all the force gauges 7 and confirm that the connection is correct.

[0069] At this time, the data sensor is connected to the cloud processor 4. The cloud processor 4 begins to receive the force data of the anchor head 9 on site. Based on the force data of the anchor head 9 in the area, the magnitude of the force on the active protective net 2 is calculated. When the force on the active protective net 2 in a certain area exceeds the threshold, the sound and light alarm will sound an alarm, and personnel will be dispatched to the site to replace the active protective net 2.

[0070] When maintenance personnel arrive at the site, they determine the range of the active protection net 2 that exceeds the threshold. Using the quick-release device 11, they disassemble the active protection net 2 that exceeds the stress range. During disassembly, they only need to unscrew the threaded column of the claw structure out of the bolt hole of the anchor head. Then, they reinstall the new active protection net 2 and apply some prestress. At this time, the reading of the force gauge 7 returns to normal.

[0071] The above-mentioned system can easily and efficiently complete the stress monitoring of active protection nets. By continuously monitoring the stress of each anchor head, the stress state of all protection nets can be controlled in a timely manner, preventing damage to the protection nets due to excessive accumulation of gravel in the slope. At the same time, it can effectively control the impact on roads and vehicles, determine the safety risk level of the slope, and provide a basis for subsequent slope treatment and reinforcement.

[0072] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A load-bearing monitoring system based on an active protection network, characterized in that, This includes monitoring and alarm devices, cloud processors, active protection nets, and anchor bolts; The anchor bolts are used to fix the active protection netting on the slope. A force gauge is installed on the anchor bolt; The monitoring and alarm device is equipped with a data sensor; The force gauge is connected to the data sensor via a cable; The cloud processor communicates with the monitoring and alarm device; The upper part of the anchor bolt is equipped with a quick-release device for fixing and removing the active protective net.

2. The load-bearing monitoring system based on an active protection network as described in claim 1, characterized in that, The anchor bolt includes an anchor head and an anchor body; The anchor head is vertically fixed to the top of the anchor body, and the transverse cross-sectional area of ​​the anchor head must be larger than that of the anchor body. The bottom of the anchor body has a pointed structure.

3. The load-bearing monitoring system based on an active protection network as described in claim 2, characterized in that, The anchor head is equipped with a quick-release device at the upper part and the force gauge is equipped at the lower part of the anchor head.

4. The load-bearing monitoring system based on an active protection network as described in claim 2, characterized in that, Each of the quick-release devices has four claw-shaped structures.

5. The load-bearing monitoring system based on an active protection network as described in claim 4, characterized in that, The top of the anchor head is provided with four bolt holes; The claw-shaped structure has a threaded post fixed at its bottom; Each of the threaded posts is tightened and secured with the corresponding bolt hole.

6. The load-bearing monitoring system based on an active protection network as described in claim 5, characterized in that, Each of the claw-shaped structures is fixed to one corner of an active protective net.

7. The load-bearing monitoring system based on an active protection network as described in claim 1, characterized in that, The cable is sheathed in a cable conduit.

8. The load-bearing monitoring system based on an active protection network as described in claim 7, characterized in that, The cable conduit is placed close to the edge or junction of the active protection net.

9. The load-bearing monitoring system based on an active protection network as described in claim 1, characterized in that, The force gauge is a strain gauge.

10. A load-bearing monitoring system based on an active protection network as described in claim 1, characterized in that, The monitoring and alarm device is located below the foot of the slope, away from the slope surface.

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