Soft foundation vacuum degree monitoring system based on wireless transmission

Abstract

The utility model discloses a soft foundation vacuum degree monitoring system based on wireless transmission. The soft foundation vacuum degree monitoring system comprises an acquisition base, a communication base and at least one probe assembly, the acquisition base comprises an acquisition base shell as well as an acquisition plate and a first wireless transmission module which are arranged in the acquisition base shell, and the acquisition plate is in data connection with the first wireless transmission module; the communication base comprises a communication base shell, a forwarding module and a second wireless transmission module, wherein the forwarding module and the second wireless transmission module are arranged in the communication base shell. The forwarding module is in data connection with the second wireless transmission module. The probe assembly is configured to be installed in a detection hole of a soft soil foundation. Wherein a pressure monitoring unit is arranged in the probe assembly, and data acquired by the pressure monitoring unit is transmitted to the acquisition board through a cable and is transmitted to the forwarding module through a communication link between the first wireless transmission module and the second wireless transmission module to be forwarded. The device can be stably used for a long time under the conditions that the vacuum preloading soil body is high in humidity and the vacuum preloading soil body is submerged by heaped water.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of soft foundation monitoring, specifically relates to a soft foundation vacuum degree monitoring system based on wireless transmission. BACKGROUND

[0002] The observation of the soil vacuum degree in the vacuum preloading method, especially the vacuum degree under the sealing membrane, is an important index for construction process control, and is an important basis for understanding whether the preloading load meets the design requirements and evaluating the vacuum preloading reinforcement effect. Among them, accurate and effective measurement of the vacuum degree under the sealing membrane can provide accurate information feedback for the entire engineering construction, which is conducive to information planning and information platform management.

[0003] The current vacuum degree monitoring method mainly relies on manual operation, which cannot realize continuous monitoring of the change of vacuum pressure. To solve the above problems, the prior art proposes related schemes for wireless monitoring, for example, Chinese patent CN202111517244.3 discloses a buried vacuum preloading vacuum degree wireless measurement device and method. The device includes a cavity, a data acquisition module, and a data transmission module. The cavity is a gas-permeable and water-impermeable structure and is placed in the sand cushion layer of the vacuum monitoring area. The data acquisition module is arranged in the cavity and is used to acquire monitoring signals. The data transmission module is connected with the data acquisition module and is used for wireless transmission of signals. The data acquisition module is directly embedded in the vacuum degree sensor, and an external gas-permeable and waterproof protective shell is combined. The data acquisition module and the vacuum degree sensor are jointly buried under the sealing membrane to measure the vacuum degree, and remote wireless control monitoring of the vacuum degree can be realized.

[0004] However, such as the above-mentioned prior art is not a completely wireless scheme, and still needs to be transmitted from the acquisition board to the communication end through a wired mode (using a data cable). The main reason is that the data cannot be stably transmitted out by directly using a wireless mode after the water is covered on the surface of the sealing membrane. Therefore, further improvement is needed. UTILITY MODEL CONTENTS

[0005] To at least partially solve the deficiencies in the prior art, the main purpose of the utility model is to provide a soft foundation vacuum degree monitoring system based on wireless transmission, which can be used stably and for a long time in the scene of high humidity of vacuum preloading soil and water submergence by stacking load.

[0006] To achieve the above main purpose, the utility model discloses a soft foundation vacuum degree monitoring system based on wireless transmission, which comprises:

[0007] The acquisition base comprises an acquisition base shell and an acquisition board and a first wireless transmission module arranged in the acquisition base shell, and the acquisition board and the first wireless transmission module are data connected;

[0008] The communication base comprises a communication base shell, a forwarding module and a second wireless transmission module arranged in the communication base shell, and the forwarding module and the second wireless transmission module are connected in data;

[0009] At least one probe assembly is configured to be installed into a detection hole of the soft soil foundation;

[0010] The pressure monitoring unit obtains data, which is transmitted to the acquisition board through a cable and is transmitted to the forwarding module through a communication link between the first wireless transmission module and the second wireless transmission module for forwarding.

[0011] According to a specific embodiment of the present application, the first wireless transmission module and the second wireless transmission module are both Lora modules or ZigBee modules.

[0012] According to a specific embodiment of the present application, the top cover of the acquisition base shell is a plastic top cover, and the first wireless transmission module is installed adjacent to the inner surface of the top cover of the acquisition base shell; the bottom cover of the communication base shell is a plastic bottom cover, and the second wireless transmission module is installed adjacent to the inner surface of the bottom cover of the communication base shell.

[0013] Optionally, when the acquisition base and the communication base are assembled, the top cover of the acquisition base shell and the bottom cover of the communication base shell are aligned.

[0014] Optionally, one of the top cover of the acquisition base shell and the bottom cover of the communication base shell is provided with a protruding portion, and the other is provided with a groove portion matched with the protruding portion.

[0015] Optionally, the depth of the groove portion is less than 1cm.

[0016] According to a specific embodiment of the present application, the acquisition base shell is further provided with a battery module, and the battery module is electrically connected with the acquisition board.

[0017] Optionally, the plurality of batteries in the battery module are arranged in a circular array to form an accommodation space, and the acquisition board is installed in the accommodation space through a mounting bracket.

[0018] Optionally, the communication base is provided with a charging battery module, and the charging battery module charges the battery module through a wireless charging module; wherein the wireless charging module comprises a first charging coil module and a second charging coil module, the first charging coil module is installed in the bottom cover of the communication base shell, and the second charging coil module is installed in the top cover of the acquisition base shell.

[0019] Optionally, it further comprises a solar charging module for supplying power to the charging battery module, and the solar charging module is installed above the communication base shell.

[0020] The utility model discloses a following beneficial effect has: provide a kind of soft base vacuum degree monitoring system based on wireless transmission, when installation, collection pedestal and communication pedestal are respectively installed to the upper and lower sides of sealing membrane, belong to contact type installation and do not destroy sealing membrane;Among them, acquisition plate real-time acquisition probe assembly measured vacuum degree data, and be transmitted to the forwarding module in the communication link between first wireless transmission module and second wireless transmission module and be forwarded to server or user terminal, this way will not be affected by the water on the surface of sealing membrane, data can maintain long-time stable transmission, it also has the advantages of strong practicality and convenient field use simultaneously.

[0021] In order to more clearly illustrate the purpose, technical scheme and advantages of the utility model, the utility model will be further described in detail below with the drawings and specific embodiments. DRAWINGS

[0022] Figure 1 It is the frame diagram of soft base vacuum degree monitoring device of the utility model;

[0023] Figure 2 It is the perspective view of soft base vacuum degree monitoring device of the utility model;

[0024] Figure 3 It is the perspective view of acquisition pedestal and communication pedestal;

[0025] Figure 4 It is the exploded view of acquisition pedestal;

[0026] Figure 5 It is the exploded view of communication pedestal;

[0027] Figure 6 It is the extension structure diagram of soft base vacuum degree monitoring device. DETAILED DESCRIPTION

[0028] In the following description, many specific details are set forth in connection with the embodiments in order to fully understand the utility model, but it should be understood that the following embodiments and detailed description are only for the purpose of illustration and do not limit the protection scope of the utility model.

[0029] The soft base vacuum degree monitoring system based on wireless transmission of the utility model embodiment as shown in Figures 1-2 It includes acquisition pedestal 10, communication pedestal 20 and multiple probe assemblies 30;Among them, acquisition pedestal 10 is installed to the surface of soft soil foundation and is located below sealing membrane, multiple probe assemblies 30 are installed below acquisition pedestal 10 and extend into detection hole downward, and communication pedestal 20 is placed above sealing membrane corresponding acquisition pedestal 10.

[0030] Multiple probe assemblies 30 in the embodiment are preferably through Figure 2The plurality of pressure monitoring units are connected to each other in a manner to form a straight pipe carrying the plurality of pressure monitoring units, and in other embodiments, the plurality of pressure monitoring units can be directly inserted into the detection hole through a four-core cable, and the specific structure of the probe assembly 30 is not limited here and will not be expanded. The pressure monitoring unit is specifically a pressure sensor.

[0031] As shown in Figures 3-4 , the acquisition base 10 includes an acquisition base shell 11, an acquisition board and a first wireless transmission module, the inside of the acquisition base shell 11 forms a first containing cavity 11a, the acquisition board and the first wireless transmission module are placed in the first containing cavity 11a, and data connection is provided between the two. Specifically, the acquisition board is connected to the pressure sensor in the plurality of probe assemblies 30 in a wired manner to obtain the vacuum degree data of the pressure sensor.

[0032] The acquisition base 10 further includes a battery module 12, which is electrically connected to the acquisition board to supply power to the acquisition board. Please continue to refer to Figures 3-4 , the plurality of batteries in the battery module 12 are arranged in a circular array to form a containing space 12a, and the acquisition board is installed in the containing space 12a through a mounting bracket 13.

[0033] As shown in Figure 3 and Figure 5 , the communication base 20 includes a communication base shell 21, a forwarding module 22 and a second wireless transmission module, the shape of the communication base shell 21 is similar to that of the acquisition base shell 11, and both are preferably hollow cylindrical; Similarly, a second containing cavity 21a is formed in the inside of the communication base shell 21, and the forwarding module 22 and the second wireless transmission module are placed in the second containing cavity 21a, and data connection is provided between the two.

[0034] As shown in Figure 1 , in the embodiment, the vacuum degree data of the pressure monitoring unit is obtained through the acquisition board, and this part of data is transmitted to the forwarding module 22 through the communication link between the first wireless transmission module and the second wireless transmission module, and is forwarded to the cloud server or the user terminal, and through the supporting software system or APP, the vacuum degree data of the corresponding soft foundation area is obtained, analyzed and stored, etc. Operation.

[0035] During the on-site construction process, a certain depth of water will cover the sealing film, and the depth of this part of water is more than 0.5 meters or even more than 1 meter. Due to the existence of the water covering the sealing film, the wireless transmission mode of the 4G signal cannot be stably transmitted. In order to solve this problem, the first wireless transmission module and the second wireless transmission module in the embodiment are both Lora modules. In some embodiments, the first wireless transmission module and the second wireless transmission module can also be ZigBee modules. The above-mentioned two data transmission modes in the form of a local area network have the advantages of strong short-distance penetration and high data stability, and can meet the actual use under the condition of water covering the sealing film.

[0036] Further, the collection base shell 11 is specifically a metal base shell, the top cover 14 at the top thereof is a plastic top cover, a larger fixed mounting plate 111 is arranged at the bottom, the top cover 14 is in sealing connection with the collection base shell 11, and the first wireless transmission module is arranged close to the inner surface of the top cover 14 of the collection base shell 11; the communication base shell 21 is specifically a metal base shell, the bottom cover 23 at the bottom thereof is a plastic bottom cover, the bottom cover 23 is in sealing connection with the communication base shell 21, and the second wireless transmission module is arranged close to the inner surface of the bottom cover 23 of the communication base shell 21. When the collection base 10 and the communication base 20 are assembled, the top cover 14 and the bottom cover 23 are aligned, as shown in Figure 3 , so as to ensure that the first wireless transmission module and the second wireless transmission module have a closer transmission distance and maintain high stability of data.

[0037] In order to maintain the high alignment between the top cover 14 of the collection base shell 11 and the bottom cover 23 of the communication base shell 21, please refer to Figure 3 , the top cover 14 is provided with a protruding part 15, the bottom cover 23 is provided with a groove part 24 matched with the protruding part 15, and when the collection base 10 and the communication base 20 are assembled, the protruding part 15 is inserted into the groove part 24 to realize the alignment assembly. Preferably, the depth of the groove part 24 is relatively shallow, for example, is set to be below 1 cm, so that the sealing film is not pulled and damaged.

[0038] Optionally, at least one of the top cover 14 and the bottom cover 23 can also be provided with a flexible anti-skid convex point, that is, the upper surface of the top cover 14 and the lower surface of the bottom cover 23 are provided with a flexible anti-skid convex point. When the collection base 10 and the communication base 20 are assembled, the flexible anti-skid convex point is extruded to deform, so as to realize anti-skid.

[0039] Further optionally, a set of magnetic parts can also be arranged in the top cover 14 and the bottom cover 23. When the collection base 10 and the communication base 20 are assembled, the set of magnetic parts are attracted to each other. The set of magnetic parts can better maintain the stable connection between the collection base shell 11 and the communication base shell 21.

[0040] Please refer to Figure 3 and Figure 5The communication base 20 is provided with a charging battery module 25, and the upper portion of the communication base shell 21 is provided with a solar charging module 26 for supplying power to the charging battery module 25, and the charging battery module 25 charges the battery module 12 through a wireless charging module; wherein the wireless charging module comprises a first charging coil module 27 and a second charging coil module 28, the first charging coil module 27 is installed into the bottom cover 23, and the second charging coil module 28 is installed into the top cover 14, and the positions of the two are opposite to each other so as to ensure the smooth progress of the wireless charging process.

[0041] The solar charging module 26 under the above structure has a certain height after installation, and can be directly used in the case that the water on the surface of the sealing film is shallow; as an extension / variation of the above embodiment, the communication base 20 can also be provided with an extension rod 29, as shown in Figure 6 The extension rod 29 has a relatively long length, and the solar charging module is installed at the top of the extension rod 29 and is not affected by the water (a larger depth) covered on the surface of the sealing film. At the same time, the antenna of the retransmission module 22 is arranged on the extension rod 29, and after the water is covered on the top of the sealing film, the antenna of the retransmission module 22 is always located above the water surface.

[0042] Although the above describes the present application through embodiments, the above embodiments are only used for exemplarily describing the implementable schemes of the present application, and are not used for limiting the protection scope of the present application, and any equivalent replacement or change made by the person skilled in the art according to the present application should also be covered by the protection scope defined by the claims of the present application.

Claims

1. A soft foundation vacuum monitoring system based on wireless transmission, characterized in that The utility model relates to a kind of soil detection system, including: Collection base, including collection base shell and the collection board and first wireless transmission module being arranged in the collection base shell, data connection between the collection board and the first wireless transmission module; Communication base, including communication base shell and the forwarding module and second wireless transmission module being arranged in the communication base shell, data connection between the forwarding module and the second wireless transmission module; At least one probe assembly is configured to be installed into the detection hole of soft soil foundation; Wherein pressure monitoring unit is provided in the probe assembly, the data obtained by the pressure monitoring unit is transmitted to the collection board by cable, and is transmitted to the forwarding module by the communication link between the first wireless transmission module and the second wireless transmission module for forwarding.

2. The wireless transmission based soft ground vacuum level monitoring system according to claim 1, wherein: The first wireless transmission module and the second wireless transmission module are lora module or ZigBee module.

3. The wireless transmission based soft ground vacuum level monitoring system of claim 1, wherein: The top cover of the collection base shell is plastic top cover, and the first wireless transmission module is installed adjacent to the inner surface of the top cover of the collection base shell;The bottom cover of the communication base shell is plastic bottom cover, and the second wireless transmission module is installed adjacent to the inner surface of the bottom cover of the communication base shell.

4. The wireless transmission based soft ground vacuum level monitoring system of claim 3, wherein: When the collection base and the communication base are assembled, the top cover of the collection base shell and the bottom cover of the communication base shell are aligned.

5. The wireless transmission based soft ground vacuum level monitoring system of claim 4, wherein: One of the top cover of the collection base shell and the bottom cover of the communication base shell is provided with a protruding part, and the other is provided with a groove part matched with the protruding part.

6. The wireless transmission based soft ground vacuum level monitoring system of claim 5, wherein: The depth of the groove part is set to be below 1cm.

7. The wireless transmission based soft ground vacuum level monitoring system of claim 1, wherein: The collection base is further provided with battery module, and the battery module is electrically connected with the collection board.

8. The wireless transmission based soft ground vacuum level monitoring system of claim 7, wherein: Multiple batteries in the battery module are distributed in circular array to form accommodating space, and the collection board is installed into the accommodating space by mounting bracket.

9. The wireless transmission based soft ground vacuum level monitoring system of claim 7, wherein: The communication base is provided with charging battery module, and the charging battery module charges the battery module by wireless charging module;Wherein, the wireless charging module includes first charging coil module and second charging coil module, the first charging coil module is installed into the bottom cover of the communication base shell, and the second charging coil module is installed into the top cover of the collection base shell.

10. The wireless transmission based soft ground vacuum level monitoring system of claim 9, wherein: It further includes solar charging module for supplying power to the charging battery module, and the solar charging module is installed above the communication base shell.

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