Intelligent thickness measuring device for building installation engineering based on intelligent sensor

Abstract

The application relates to a smart sensor-based intelligent thickness measuring device for building installation engineering and belongs to the technical field of building installation engineering, which comprises a host computer, a lower test piece, a stable detection mechanism and a positioning piece. Through the cooperative design of a UWB positioning base station and a UWB label, a high-precision space positioning system is constructed, and a core reference advantage is laid for thickness measurement. The UWB positioning base station is embedded in the bottom surface mounting groove of the host computer and arranged in a rectangular array. The geometric center can be accurately aligned with the axis of the upper measuring sensor. The UWB label is embedded in the top of the lower measuring sensor, so that the positioning coordinates and the detection axis of the lower measuring sensor are completely overlapped. This embedded installation mode avoids the damage and signal shielding of the positioning component, ensures the high unification of the positioning reference and the detection reference, effectively reduces the coordinate conversion error, and cooperates with the control center to coordinate the movement of the moving wheels of the moving chassis.

Description

Technical Field

[0001] This invention relates to the field of building installation engineering technology, and in particular to an intelligent thickness measurement device for building installation engineering based on intelligent sensors. Background Technology

[0002] Accurate measurement of building floor slab thickness is crucial for ensuring structural safety and compliance with design specifications during the construction and acceptance phases of building installation projects. The measurement results directly impact the building's load-bearing capacity, seismic performance, and service durability. Currently, the industry primarily uses two methods for measuring building floor slab thickness: traditional manual measurement and semi-automatic sensor measurement. Both methods suffer from numerous technical limitations in practical applications, failing to meet the demands of modern building engineering for measurement accuracy, efficiency, and intelligent systems.

[0003] Traditional manual measurement methods often employ core drilling and tape measure estimation. Core drilling requires drilling holes in the floor slab to obtain samples. While it can provide thickness data with a certain degree of accuracy, it causes irreversible damage to the floor slab structure, compromising the building's integrity. Furthermore, the drilling, sampling, testing, and subsequent repair processes are cumbersome, time-consuming, and labor-intensive, resulting in extremely low measurement efficiency. This method is unsuitable for large-area, multi-point batch measurement scenarios. Tape measure estimation relies on the operator's experience and judgment. It measures at the edge of the floor slab or through pre-drilled holes, making it impossible to accurately measure critical locations such as the center of the floor slab. Moreover, manual readings have significant errors and are easily affected by factors such as operator posture and visual bias, resulting in poor reliability of measurement results and making it difficult to meet the requirements of high-precision engineering quality control.

[0004] With the development of sensing technology, semi-automatic sensing and measurement devices (such as ultrasonic thickness gauges) are gradually replacing some traditional manual measurement methods. They calculate thickness by using upper and lower measuring sensors to transmit detection signals, without damaging the floor structure, and their measurement efficiency is improved compared to traditional methods. However, existing semi-automatic sensing and measurement devices still have significant shortcomings in positioning and alignment, probe fit, and environmental adaptability, which restricts further improvements in measurement accuracy and stability.

[0005] In terms of positioning and alignment, existing sensing and measuring devices mostly rely on manual adjustment of the positions of the upper and lower measuring sensors to align them in the vertical direction. Operators need to repeatedly compare and fine-tune, which is not only time-consuming and labor-intensive, but also the manual alignment error is usually at the centimeter level, which cannot achieve millimeter-level precise alignment. This leads to the offset of the detection signal transmission, which in turn introduces a large measurement error. Although some devices have tried to use wireless positioning technologies such as Bluetooth and RFID to assist in alignment, these technologies have low positioning accuracy and the signals are easily affected by the blockage of building concrete structures and electromagnetic interference at the construction site, making it difficult to achieve stable and accurate alignment of the upper and lower measuring sensors. At the same time, the positioning components are mostly externally designed, which are easily damaged by construction collisions, and the positioning reference is not consistent with the probe detection reference, which requires additional coordinate conversion, further reducing the alignment accuracy. Regarding probe bonding and fixation, existing devices mostly use rigid bonding or manual pressing bonding methods. On the one hand, the surface of building floors is generally rough and uneven, and rigid bonding cannot compensate for surface errors, which can easily lead to gaps between the probe and the floor, causing signal attenuation and distortion. On the other hand, the pressure of manual pressing is uneven and cannot resist interference from vibration and wind at the construction site. The probe is prone to displacement during the measurement process, which further aggravates the measurement error. At the same time, rigid bonding and improper pressing may also damage the probe or scratch the floor surface, affecting the construction quality.

[0006] Therefore, this application provides an intelligent thickness measurement device for building installation engineering based on smart sensors to meet the requirements. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide an intelligent thickness measurement device for building installation engineering based on intelligent sensors, so as to solve the problems of structural damage, large manual alignment error, loose probe fit, unreliable adsorption fixation and dust interference in the existing floor slab thickness measurement methods, which result in low measurement accuracy, poor efficiency and weak repeatability, making it difficult to meet the high-precision, non-destructive and automated detection requirements of construction sites.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An intelligent thickness measurement device for building installation engineering based on smart sensors includes a main unit, a lower test piece, a stabilizing detection mechanism, and a positioning component. The lower test piece includes a lower measuring sensor that contacts the bottom surface of the building floor slab during use. The stabilizing detection mechanism includes a lifting plate slidably connected to a mobile chassis. An upper measuring sensor is located below the lifting plate, and vacuum suction cups for adsorption support are located at the four corners of the bottom surface. The main unit has a second cavity and a dust pump inside. The dust pump is used to suck up floating dust and particles in the covered area and temporarily store them in the second cavity. The positioning component includes a UWB positioning base station and a UWB tag for positioning, used to determine the spatial position information of the device, and as a basis for adjusting the position of the moving wheels to ensure that the upper measuring sensor and the lower measuring sensor are vertically aligned.

[0009] Optionally, a first display screen is fixedly installed on one side of the top of the host, a handle is fixedly installed on the other side of the top of the host, a movable chassis is installed on the bottom of the host, and the movable chassis is equipped with casters.

[0010] Optionally, a hydraulic rod is fixedly connected to the center of the top of the lifting plate. The top surface of the hydraulic rod is fixedly connected to the inner top wall of the movable chassis. An elastic element is fixedly connected to the center of the bottom surface of the hydraulic rod. The elastic element includes a buffer spring fixedly connected to the bottom surface of the lifting plate. A damping rod is sleeved inside the buffer spring. The top of the damping rod is also fixedly connected to the bottom surface of the hydraulic rod. The bottom surfaces of the damping rod and the buffer spring are both connected to the top surface of the upper measuring sensor.

[0011] Optionally, the input end of the vacuum suction cup is connected to a telescopic hose, and the telescopic hose passes through the lifting plate and is connected to the first cavity.

[0012] Optionally, the first cavity is fixedly connected to the inner wall of the mobile chassis, the output end of the first cavity is connected to a vacuum pump, and the output end of the vacuum pump is connected to a guide pipe.

[0013] Optionally, a connecting pipe is provided through the top of the first cavity, and the output end of the connecting pipe is connected to the second cavity.

[0014] Optionally, a filter plate is fixedly installed inside the second cavity, and the input end of the dust pump is connected to the second cavity, and the output end is connected to the discharge pipe.

[0015] Optionally, an electric telescopic rod is fixedly connected to the bottom surface of the lower measuring sensor, and a handle is fixedly connected to the bottom of the electric telescopic rod.

[0016] Optionally, a second display screen is fixedly installed on the handle, and the second display screen and the first display screen are used to synchronously display positioning and thickness measurement data.

[0017] Optionally, the bottom surface of the host has a rectangular array of mounting slots, the UWB positioning base station is installed inside the mounting slots, and the UWB tag is embedded in the inner top of the lower measurement sensor.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects: This invention constructs a high-precision spatial positioning system through the collaborative design of UWB positioning base stations and UWB tags, laying a core benchmark advantage for thickness measurement. The UWB positioning base station is embedded in the mounting slot on the bottom of the host in a rectangular array layout, and its geometric center can be precisely aligned with the axis of the upper measuring sensor. The UWB tag is embedded in the top of the lower measuring sensor, achieving complete coincidence of the positioning coordinates and the detection axis of the lower measuring sensor. This embedded installation method avoids external force damage and signal obstruction to the positioning components, and ensures the high uniformity of the positioning benchmark and the detection benchmark, effectively reducing coordinate conversion errors. With the coordination of the control center and the movement of the moving wheels of the mobile chassis, it can automatically drive the upper measuring sensor and the fixed lower measuring sensor to accurately align in the vertical direction, replacing the traditional manual alignment method. The alignment error is controlled within millimeters, solving the pain points of low efficiency and large deviation of manual alignment, and providing a prerequisite guarantee for subsequent accurate measurement. At the same time, the first display screen and the second display screen synchronously display the positioning data, allowing the operator to monitor the alignment status in real time, further avoiding alignment errors and improving positioning reliability.

[0019] This invention utilizes a hydraulic rod to drive a lifting platform for smooth elevation. Combined with a buffer spring and damping rod structure, the upper measuring sensor gently and elastically adheres to the upper surface of the floor slab. This compensates for minor unevenness in the floor surface through the elastic force of the buffer spring, ensuring a tight, gapless fit between the probe and the floor slab, preventing signal attenuation. The damping rod also suppresses impact forces during the fitting process, preventing probe damage or scratches on the floor surface, making it suitable for rough and uneven construction sites. Simultaneously, a vacuum suction cup contacts the ground along with the lifting platform, forming a multi-point uniform suction support. A stable negative pressure is created through the cooperation of a vacuum pump and the first chamber, firmly fixing the upper measuring sensor to the floor surface, resisting interference from vibrations and wind at the construction site, and avoiding measurement errors caused by probe displacement during the measurement process.

[0020] This invention, through the synergistic action of a dust pump, a second chamber, and a connecting pipe, achieves pre-dust removal in the adsorption area before the vacuum suction cup officially adsorbs dust, forming a closed-loop optimization of "dust removal-adsorption-detection," further improving overall operational reliability. After the dust pump starts, the connecting pipe draws floating dust and particles from the area to be covered by the vacuum suction cup into the second chamber, where they are temporarily stored after being filtered by an internal filter plate. This prevents air leakage caused by floating dust filling the gaps at the suction cup lip, significantly improving the adsorption firmness of the vacuum suction cup and ensuring a stable and lasting negative pressure state, providing environmental protection for the fixation and adhesion of the upper measurement sensor. Simultaneously, the smoother floor surface after dust removal reduces the contact gap between the probe and the floor, lowering interference and attenuation of the detection signal during transmission, further improving the accuracy of thickness measurement. Furthermore, the filter plate prevents floating dust from entering the dust pump and vacuum pump, avoiding equipment blockage and wear, extending equipment lifespan, and adapting to the complex environment of construction sites with high dust levels. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of an intelligent thickness measurement device for building installation engineering based on smart sensors; Figure 2 Side and front views of an intelligent thickness measurement device for building installation engineering based on smart sensors; Figure 3 This is an exploded view of the stable detection mechanism of the present invention; Figure 4 This is an overall sectional view of the present invention; Figure 5 for Figure 4 Schematic diagram at point A in the middle; Figure 6 for Figure 4 Schematic diagram at point B in the middle; Figure 7 This is a schematic diagram of the overall cutting process of the present invention; Figure 8 This is a schematic diagram of the stable detection mechanism and the lower test piece of the present invention; Figure 9 This is a schematic diagram of the positioning element of the present invention.

[0022] Figure label: 200. Main unit; 201. First display screen; 202. Handle; 300. Lower test piece; 301. Electric telescopic rod; 302. Handle; 303. Second display screen; 304. Lower measuring sensor; 400. Mobile chassis; 401. Moving wheels; 500. Stabilizing detection mechanism; 501. Lifting plate; 502. Hydraulic rod; 503. Elastic element; 504. Upper measuring sensor; 505. Vacuum suction cup; 506. Telescopic hose; 507. First cavity; 5071. Vacuum pump; 5072. Guide tube; 508. Connecting tube; 509. Second cavity; 5091. Filter plate; 5092. Dust pump; 600. Positioning component; 601. Mounting slot; 602. UWB positioning base station; 603. UWB tag. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0024] like Figures 1 to 9As shown, an embodiment of the present invention provides an intelligent thickness measurement device for building installation engineering based on intelligent sensors, including a main unit 200, a handle 202 fixedly installed on the other side of the top of the main unit 200, a movable chassis 400 installed on the bottom surface of the main unit 200, and movable wheels 401 installed on the movable chassis 400; the main unit 200 also includes a lower test piece 300, a stabilizing detection mechanism 500, and a positioning component 600; the lower test piece 300 includes a lower measuring sensor 304, which contacts the bottom surface of the building floor slab during use; the stabilizing detection mechanism 500 includes a lifting plate 501 slidably connected to the movable chassis 400, an upper measuring sensor 504 is provided below the lifting plate 501, and vacuum suction cups 505 for adsorption support are provided at the four corners of the bottom surface; the main unit 200 has a second cavity 509 and a dust pump 5092 respectively inside; the dust pump 5092 is used to suck up and temporarily store floating dust and particles in the covered area in the second cavity 509; the positioning component 600 includes a UWB positioning device for positioning. The base station 602 and UWB tag 603 are used to determine the spatial position information of the device and serve as the basis for adjusting the position of the moving wheel 401, so that the upper measuring sensor 504 and the lower measuring sensor 304 are vertically aligned. The first display screen 201 is fixedly installed on one side of the top of the host 200. When measuring the thickness of the building, the system realizes the position perception of the device in space through the coordinated action of the UWB positioning base station 602 and UWB tag 603. Based on this information, the control center coordinates the movement of the moving wheel 401 to align the upper measuring sensor 504 with the fixed lower measuring sensor 304 in the vertical direction. After positioning, the lifting plate 501 drives the upper measuring sensor 504 to gently and elastically adhere to the upper surface of the floor slab, while the vacuum suction cup 505 simultaneously contacts the ground to form a reliable adsorption support. Before the vacuum suction cup 505 officially adsorbs, the system has started the dust pump 5092 to suck up the floating dust and particles in the area to be covered by the suction cup and temporarily store them in the second cavity 509.

[0025] Specifically: To achieve precise vertical alignment between the upper measuring sensor 504 and the lower measuring sensor 304, the system introduces ultra-wideband (UWB) positioning technology: several UWB positioning base stations 602 are pre-deployed around the work area to form a high-precision indoor positioning network; during operation, the UWB tag 603 continuously transmits short pulse signals to each base station. After receiving the signals, the base station uses algorithms such as Time of Flight (ToF) or Time Difference of Arrival (TDoA) to calculate the three-dimensional coordinates of the UWB tag 603 in space in real time, thereby obtaining the precise position of the platform where the upper measuring sensor 504 is located.

[0026] The control center receives the position data and, in conjunction with the known fixed coordinates of the lower measuring sensor 304, calculates the horizontal offset and azimuth deviation of the upper measuring sensor 504 relative to the lower measuring sensor 304. Subsequently, the control center generates corresponding motion commands to drive the moving wheel 401 to autonomously translate and fine-tune along the ground until the upper measuring sensor 504 is completely aligned with the lower measuring sensor 304 in the horizontal plane, that is, their projections coincide on the same vertical axis.

[0027] It is worth noting that the core of the "system" or "control center" of this invention is an intelligent measurement and control unit based on an embedded microcontroller. This unit receives UWB positioning data through an integrated communication interface, drives the moving wheel 401 through a motion control interface, and controls various pumps and valves through switch outputs. The control algorithm running inside generates precise speed commands for the moving wheel 401 based on the real-time deviation between the coordinates of the UWB tag 603 and the target coordinates through proportional-integral calculations. The drive device automatically completes millimeter-level alignment. The entire measurement process is managed by a sequential state machine, which strictly defines the triggering sequence and conditions from automatic homing, descent cleaning, adsorption fixation to signal acquisition. For example, when the lifting plate 501 descends to the preset position, the vacuum pump 5092 is triggered to start, and the measurement signal is triggered after the negative pressure reaches the threshold, thereby ensuring the automation and reliability of the entire process.

[0028] As can be seen from the above, firstly, by leveraging the high-precision spatial positioning capability between the UWB positioning base station 602 and the UWB tag 603, the system can perceive the precise position of the host 200 above the floor in real time. The control center then drives the moving wheel 401 to automatically adjust its trajectory, ensuring that the upper measuring sensor 504 is precisely aligned with the lower measuring sensor 304 fixedly installed below, guaranteeing that the two are strictly on the same vertical axis. This automatic alignment mechanism completely eliminates the deviation caused by traditional manual visual inspection or mechanical limiting, and significantly improves the accuracy of measurement.

[0029] Secondly, after alignment is completed, the lifting plate 501 drives the upper measuring sensor 504 to gently contact the upper surface of the floor slab in an elastic manner, avoiding structural damage or probe displacement that may be caused by rigid impact. At the same time, the vacuum suction cups 505 arranged at the four corners simultaneously adhere to the ground, forming a stable and reliable adsorption support, effectively suppressing errors caused by equipment shaking or external disturbances during the measurement process, and significantly enhancing the system's anti-interference ability and measurement stability.

[0030] Crucially, before the vacuum suction cup 505 officially begins vacuum adsorption, the system pre-starts the built-in dust pump 5092 to efficiently suck up dust, debris, and other particles from the area to be covered by the suction cup and temporarily store them in the second chamber 509 inside the main unit 200. This pre-cleaning mechanism ensures that a complete and impurity-free sealed interface is formed between the suction cup and the floor surface, greatly improving the reliability and durability of vacuum adsorption and maintaining a stable operating state even in dusty construction sites.

[0031] In summary, this technology not only achieves fully automated and highly efficient floor slab thickness detection, but also significantly improves measurement accuracy (down to the millimeter level), environmental adaptability, and operational safety through the synergy of multiple technologies such as precise positioning, flexible contact, active cleaning, and multi-point adsorption. It effectively solves the pain points of traditional detection methods, such as reliance on manual labor, susceptibility to interference, and low efficiency, and provides an intelligent, standardized, and reproducible technical path for building quality inspection.

[0032] like Figures 2 to 7 As shown, a hydraulic rod 502 is fixedly connected to the center of the top of the lifting plate 501. The top surface of the hydraulic rod 502 is fixedly connected to the inner top wall of the movable chassis 400. An elastic element 503 is fixedly connected to the center of the bottom surface of the hydraulic rod 502. The elastic element 503 includes a buffer spring fixedly connected to the bottom surface of the lifting plate 501, and a damping rod is sleeved inside the buffer spring. The top of the damping rod is also fixedly connected to the bottom surface of the hydraulic rod 502. The bottom surfaces of the damping rod and the buffer spring are both connected to the top surface of the upper measuring sensor 504. A telescopic hose 506 is connected through the input end of the vacuum suction cup 505. A flexible hose 506 passes through the lifting plate 501 and is connected to a first cavity 507. The first cavity 507 is fixedly connected to the inner wall of the movable chassis 400. The output end of the first cavity 507 is connected to a vacuum pump 5071, and the output end of the vacuum pump 5071 is connected to a guide pipe 5072. A connecting pipe 508 is connected through the top of the first cavity 507. The output end of the connecting pipe 508 is connected to a second cavity 509. A filter plate 5091 is fixedly installed inside the second cavity 509. The input end of the dust pump 5092 is connected to the second cavity 509, and the output end is connected to the discharge pipe.

[0033] Specifically, regarding the thickness measurement principle, the upper measuring sensor 504 and the lower measuring sensor 304 in this invention are a pair of coaxial through-beam ultrasonic transducers. Thickness measurement is based on the ultrasonic pulse-echo method. The upper measuring sensor 504 emits ultrasonic pulses towards the floor slab. After the pulses penetrate the floor slab material, they are received by the lower measuring sensor 304. The control unit accurately measures the pulse flight time and, combined with the propagation speed of ultrasound in known building materials, directly calculates the floor slab thickness using the basic formula "thickness = sound speed × time". The tight fit between the probe and the floor slab surface is ensured by the elastic element 503 to reduce sound energy loss and ensure the strength and accuracy of the measurement signal.

[0034] Specifically: Regarding the piping logic of the vacuum and cleaning system, the system is critically equipped with two solenoid valves: the first solenoid valve is located on the pipeline between the first chamber 507 and the vacuum pump 5071, and the second solenoid valve is located on the connecting pipe 508.

[0035] Its control logic is closely coupled with the workflow: During the cleaning phase, the second solenoid valve is opened and the first solenoid valve is closed. The negative pressure airflow generated by the vacuum pump 5092 draws dust into the second chamber 509 through the suction cup, the first chamber 507, and the connecting pipe 508. After cleaning is completed, the system closes the second solenoid valve and the vacuum pump 5092, then opens the first solenoid valve and starts the vacuum pump 5071. At this time, the airflow path is switched, and a high negative pressure is established in the first chamber 507 and the suction cup for equipment fixation. This valve control system is uniformly coordinated by the control unit, thereby realizing the non-interference sequential operation of "cleaning first and then adsorption", ensuring the reliability of adsorption and the accuracy of measurement.

[0036] From the above, we can conclude that: The lifting plate 501 is connected to the movable chassis 400 via a hydraulic rod 502 at its top center. The bottom of the hydraulic rod 502 integrates an elastic element 503 consisting of a buffer spring and a built-in damping rod, both of which are connected to the top of the upper measuring sensor 504. This composite elastic structure can effectively absorb impact energy and suppress rebound vibration when the upper measuring sensor 504 contacts the floor surface: the buffer spring provides flexible preload to ensure that the probe is fully in contact with the floor surface; the damping rod dissipates kinetic energy to quickly attenuate micro-oscillations, avoiding measurement drift caused by equipment shaking or uneven ground, thereby ensuring the repeatability and accuracy of thickness measurement data.

[0037] Meanwhile, the vacuum suction cup 505 is connected to the first cavity 507 fixed in the mobile chassis 400 via the telescopic hose 506. The first cavity 507 is continuously pumped by the vacuum pump 5071 to form a negative pressure, which causes each suction cup to generate a strong suction force synchronously, and anchors the whole machine firmly to the floor surface. More importantly, the top of the first cavity 507 is connected to the second cavity 509 via the connecting pipe 508. The second cavity 509 has a built-in filter plate 5091 and is connected to the dust pump 5092. Before the vacuum adsorption is started, the dust pump 5092 works first, and guides the dust and debris in the area to be covered by the suction cup through the connecting pipe 508 into the second cavity 509 via the negative pressure. The particles are intercepted by the filter plate 5091, and the clean airflow is discharged by the dust pump 5092. This pre-cleaning mechanism effectively removes contaminants from the adsorption interface, prevents dust from hindering the sealing of the suction cup, and greatly improves the success rate and durability of vacuum adsorption, which is especially suitable for construction sites with a lot of dust.

[0038] like Figure 8 and Figure 9As shown, an electric telescopic rod 301 is fixedly connected to the bottom surface of the lower measuring sensor 304. A handle 302 is fixedly connected to the bottom of the electric telescopic rod 301. A second display screen 303 is fixedly installed on the handle 302. The second display screen 303 and the first display screen 201 are used to synchronously display positioning and thickness measurement data.

[0039] Specifically, the upper measuring sensor 504 and the lower measuring sensor 304 are a pair of coaxial, through-beam ultrasonic transducers, which are the core sensors for non-destructive thickness measurement in this invention. Their function is to work together to accurately acquire the physical thickness data of the floor slab: the upper measuring sensor 504 acts as the ultrasonic wave source, responsible for directionally emitting high-frequency sound pulses towards the upper surface of the floor slab; the lower measuring sensor 304 acts as the signal receiver, closely attached to the lower surface of the floor slab, responsible for capturing and receiving the ultrasonic signals that have penetrated the entire floor slab. The two sensors are aligned vertically at the millimeter level using a UWB system, and functionally constitute a complete acoustic measurement link. The control unit precisely measures the flight time of the pulse from the upper measuring sensor 504 to the lower measuring sensor 304, and, combined with the preset propagation speed of ultrasonic waves in known building materials, directly calculates the precise thickness of the floor slab based on the physical principle of "thickness = sound speed × time". Therefore, the essence of the function of these probes is to establish a pair of acoustic measurement reference points with strictly aligned spatial coordinates, and to transform the geometric quantity of the physical thickness of the floor slab into a time quantity that can be measured with high precision, thereby providing the most direct source of thickness data for the entire intelligent device.

[0040] From the above, we can conclude that: The lower measuring sensor 304 is integrated with the operating end via an electric telescopic rod 301 connected to its bottom. A handle 302 is fixedly provided at the bottom of the electric telescopic rod 301 for easy gripping and operation by on-site personnel. A second display screen 303 is installed on the handle 302, which synchronizes data in real time with the first display screen 201 on the top of the main unit 200, jointly displaying UWB positioning information and floor thickness measurement results. This design allows operators to intuitively obtain the current positioning status and thickness measurement value without relying on the main unit 200 when holding the lower measuring sensor 304 component below the floor, significantly improving human-machine interaction efficiency and operational collaboration.

[0041] Specifically, the electric telescopic rod 301 can flexibly adjust the vertical position of the lower measuring sensor 304 according to the actual height of the floor slab, ensuring that it is always in close contact with the bottom surface of the floor slab, thereby ensuring the accuracy of the measurement benchmark. At the same time, the dual-screen synchronous display mechanism breaks the limitations of traditional single-point observation, enabling operators at both ends (or one person to monitor both ends) to instantly verify data consistency, promptly detect and eliminate anomalies caused by probe misalignment, poor contact, or signal interference, effectively improving the reliability and fault tolerance of the detection process. First, it enhances the flexibility and convenience of on-site operation, especially suitable for complex working conditions with limited space or requiring manual positioning assistance. Second, it improves measurement transparency and data reliability through dual-end visual feedback. Third, combined with the electric adjustment function, it ensures that the lower measuring sensor 304 is always in the optimal contact state, further improving the accuracy, adaptability, and operational efficiency of the overall thickness measurement system.

[0042] like Figure 8 and Figure 9 As shown, the bottom surface of the host 200 has a rectangular array of mounting slots 601. The UWB positioning base station 602 is installed inside the mounting slot 601, and the UWB tag 603 is embedded in the inner top of the lower measuring sensor 304.

[0043] From the above, we can conclude that: The bottom surface of the host 200 has multiple mounting slots 601 arranged in a rectangular array. The UWB positioning base station 602 is precisely embedded in each mounting slot 601, forming a positioning antenna array with a reasonable spatial distribution and stable geometric configuration. At the same time, the UWB tag 603 is embedded in the inner top of the lower measurement sensor 304, close to the bottom surface of the floor slab and in a fixed position. This layout design enables the UWB system to efficiently calculate the three-dimensional relative pose of the host 200 with respect to the lower measurement sensor 304 based on the signal interaction between multiple base stations and tags during the measurement process.

[0044] Because the base stations are arranged in a rectangular array, the geometric robustness and ranging redundancy of spatial positioning are significantly improved, effectively suppressing errors caused by multipath effects and signal blockage. Furthermore, integrating the UWB tag 603 into the lower measurement sensor 304 ensures that the positioning reference point and the actual measurement benchmark point are highly coincident, avoiding system errors introduced by structural offsets. The two work together to provide high-precision, low-latency position feedback for the automatic navigation of the moving wheel 401 and the vertical alignment of the upper and lower measurement sensors 304.

[0045] The working principle of the technical solution provided by this invention is as follows: When measuring the thickness of a building floor slab, the operator first places the main unit 200 above the floor slab, then holds the handle 302 and starts the electric telescopic rod 301 to extend it upwards, pushing the measuring sensor 304 to fit tightly against the lower surface of the floor slab, thus establishing a stable lower reference contact point for subsequent thickness measurement.

[0046] Relying on the wireless ranging communication between the UWB positioning base station 602, which is arranged in a rectangular array on the bottom of the host 200, and the UWB tag 603 embedded in the top of the lower measurement sensor 304, the spatial position information of the host 200 relative to the lower measurement sensor 304 is obtained in real time. Based on this high-precision positioning data, the control center drives the moving wheels 401 at both ends of the mobile chassis 400 to run autonomously and adjust the horizontal position of the host 200 on the floor until the upper measurement sensor 504 is precisely aligned with the lower measurement sensor 304, which is fixed below, to ensure that the two are on the same vertical measurement axis.

[0047] After alignment is completed, the lifting plate 501 moves downward under the drive of the hydraulic rod 502, bringing the upper measuring sensor 504 close to the upper surface of the floor slab. During this process, the elastic element 503 connected between the hydraulic rod 502 and the upper measuring sensor 504 consists of a buffer spring and a damping rod sleeved inside it, so that the upper measuring sensor 504 can gently and softly fit against the floor slab surface in a flexible and impact-free manner, which ensures good contact and effectively suppresses vibration interference.

[0048] At the same time, the vacuum suction cups 505 located at the four corners of the bottom surface of the lifting plate 501 simultaneously come into contact with the ground; before the vacuum pump 5071 starts to form suction force, the system pre-starts the dust pump 5092, and sucks in the floating dust and particles of the area to be covered by the vacuum suction cups 505 through the connecting pipe 508 via the second chamber 509. The particles are intercepted by the built-in filter plate 5091, and the clean air is discharged through the exhaust pipe, thereby realizing the automatic cleaning of the suction area.

[0049] Subsequently, the vacuum pump 5071 is started, and a stable negative pressure is established in each vacuum suction cup 505 through the first chamber 507 and the telescopic hose 506 that passes through the lifting plate 501, so that the whole machine is firmly attached to the upper surface of the floor slab, providing rigid support for measurement. At the same time, the operator can adjust the height of the lower measuring sensor 304 through the electric telescopic rod 301 at the bottom of the sensor, so that it fits tightly against the bottom surface of the floor slab. The operator can also view the real-time positioning status and floor slab thickness measurement results synchronously through the second display screen 303 on the handle 302 and the first display screen 201 on the top of the main unit 200, so as to achieve efficient operation with coordinated operation and transparent data.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An intelligent thickness measurement device for building installation engineering based on smart sensors, comprising a main unit (200), characterized in that, It also includes a lower test piece (300), a stabilizing detection mechanism (500), and a positioning piece (600); The lower test piece (300) includes a lower measuring sensor (304), which is in contact with the bottom surface of the building floor slab during use; The stable detection mechanism (500) includes a lifting plate (501) slidably connected to the mobile chassis (400). An upper measuring sensor (504) is provided below the lifting plate (501), and vacuum suction cups (505) for adsorption support are provided at the four corners of the bottom surface. The main unit (200) is provided with a second cavity (509) and a dust pump (5092) inside. The dust pump (5092) is used to suck up the floating dust and particles in the covered area and temporarily store them in the second cavity (509). The positioning component (600) includes a UWB positioning base station (602) and a UWB tag (603) for positioning, used to determine the spatial position information of the device and as a basis for adjusting the position of the moving wheel (401) so that the upper measuring sensor (504) and the lower measuring sensor (304) are vertically aligned.

2. The intelligent thickness measurement device for building installation engineering based on intelligent sensors according to claim 1, characterized in that, A first display screen (201) is fixedly installed on one side of the top of the host (200), a handle (202) is fixedly installed on the other side of the top of the host (200), a movable chassis (400) is installed on the bottom of the host (200), and the movable chassis (400) is equipped with movable wheels (401).

3. The intelligent thickness measurement device for building installation engineering based on intelligent sensors according to claim 2, characterized in that, A hydraulic rod (502) is fixedly connected to the center of the top of the lifting plate (501). The top surface of the hydraulic rod (502) is fixedly connected to the inner top wall of the movable chassis (400). An elastic element (503) is fixedly connected to the center of the bottom surface of the hydraulic rod (502). The elastic element (503) includes a buffer spring fixedly connected to the bottom surface of the lifting plate (501), and a damping rod is sleeved inside the buffer spring. The top of the damping rod is also fixedly connected to the bottom surface of the hydraulic rod (502). The bottom surfaces of the damping rod and the buffer spring are both connected to the top surface of the upper measuring sensor (504).

4. The intelligent thickness measurement device for building installation engineering based on intelligent sensors according to claim 3, characterized in that, The input end of the vacuum suction cup (505) is connected to a telescopic hose (506), and the telescopic hose (506) passes through the lifting plate (501) and is connected to the first cavity (507).

5. The intelligent thickness measurement device for building installation engineering based on intelligent sensors according to claim 4, characterized in that, The first cavity (507) is fixedly connected to the inner wall of the movable chassis (400), the output end of the first cavity (507) is connected to the vacuum pump (5071), and the output end of the vacuum pump (5071) is connected to the guide pipe (5072).

6. The intelligent thickness measurement device for building installation engineering based on intelligent sensors according to claim 5, characterized in that, The top of the first cavity (507) is connected to a connecting pipe (508), and the output end of the connecting pipe (508) is connected to the second cavity (509).

7. The intelligent thickness measurement device for building installation engineering based on intelligent sensors according to claim 6, characterized in that, A filter plate (5091) is fixedly installed inside the second cavity (509). The input end of the dust pump (5092) is connected to the second cavity (509), and the output end is connected to the discharge pipe.

8. The intelligent thickness measurement device for building installation engineering based on intelligent sensors according to claim 7, characterized in that, The bottom surface of the lower measuring sensor (304) is fixedly connected to an electric telescopic rod (301), and the bottom of the electric telescopic rod (301) is fixedly connected to a handle (302).

9. The intelligent thickness measurement device for building installation engineering based on intelligent sensors according to claim 8, characterized in that, A second display screen (303) is fixedly installed on the handle (302). The second display screen (303) and the first display screen (201) are used to synchronously display positioning and thickness measurement data.

10. The intelligent thickness measurement device for building installation engineering based on intelligent sensors according to claim 9, characterized in that, The bottom surface of the host (200) has a rectangular array of mounting slots (601), the UWB positioning base station (602) is installed inside the mounting slot (601), and the UWB tag (603) is embedded in the inner top of the lower measurement sensor (304).

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