A multi-row strip sensor

Abstract

The application provides a multi-row strip-shaped sensor and an application method thereof, which comprises a sensor unit, a positioning groove is formed in a road surface, the sensor unit is arranged in the positioning groove, further comprises a positioning plate assembly, expansion fixing bolts and filling material, the positioning plate assembly comprises a base plate, positioning holes are symmetrically formed in two sides of the base plate, the expansion fixing bolts pass through the positioning holes to fix the base plate in the positioning groove, five sensor units are fixed on the surface of the base plate and closely adhere to each other, the top surface of the sensor unit is flush with the road surface, and the filling material is filled in the positioning groove; the construction mode of building a reinforcing structure at the bottom of the construction groove and pouring quick repairing material can shorten the reconstruction period of the diseased road surface to the maximum, is convenient for hardening treatment of the installation area of the sensor, is short in installation and reconstruction time, is convenient for maintenance, and thus effectively relieves the traffic jam pressure and driving safety pressure problems caused by the closure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle weighing, in particular to a multi-row strip-shaped sensor. BACKGROUND

[0002] With the continuous development of the national economy, China's infrastructure construction and logistics industry has entered a period of rapid development. In the detection of highway overload, the supervision of vehicle overload phenomenon is realized, and the transportation, warehousing, handling, packaging and distribution of the logistics industry require frequent weighing operations. The traditional forced detection form using a card hole or a speed limit station may cause safety hazards such as card clashing. People's demand for fast, reliable and accurate dynamic weighing is increasing.

[0003] At present, when the sensor for weighing is installed, quartz or narrow strip sensors are generally used, and a positioning groove is usually excavated in the width direction of the pre-buried road in advance, a plurality of sensors are placed in the positioning groove, and a cable groove for power supply or signal wiring of each sensor is excavated near the positioning groove.

[0004] However, the current quartz and narrow strip sensors have high requirements for road hardening and installation environment, and cannot effectively detect some intentional driving behaviors after installation, such as intentionally stopping and slowing down in the detection area. At the same time, the maintenance cost of the flat plate type detection device is high during the use period, and once the device is moved, the engineering quantity is large.

[0005] At the same time, due to the serious disease of some roads, the road surface needs to be reconstructed for a long period of time to meet the installation requirements of the sensor, which causes traffic congestion and driving safety pressure problems caused by road closure. SUMMARY

[0006] Therefore, the present application provides a multi-row strip-shaped sensor which has a short reconstruction period for disease roads, causes little damage to the road surface, is convenient to install and maintain, and has accurate measurement.

[0007] The technical scheme of the present application is as follows: The present application provides a multi-row strip-shaped sensor, which comprises a sensor unit, a positioning groove is formed in the road surface, the sensor unit is arranged in the positioning groove, and further comprises a positioning plate assembly, an expansion fixing bolt and a filling material. The positioning plate assembly comprises a base plate, positioning holes are symmetrically formed on both sides of the base plate, the expansion fixing bolt passes through the positioning holes to fix the base plate in the positioning groove, five sensor units are fixed on the surface of the base plate in close contact with each other, the top surface of the sensor unit is flush with the road surface, and the filling material is filled in the positioning groove.

[0008] On the basis of the above technical scheme, preferably, the positioning plate assembly further comprises wing plates and cover plates, the wing plates are fixedly connected to the two sides of the base plate in pairs, the cover plates are buckled to the two sides of the base plate, the top surface of the cover plate is flush with the road surface, the top of the cover plate is provided with a clamping groove, and the top of the wing plate is fixedly clamped in the clamping groove; the wing plates, the cover plates and the base plate enclose a threading cavity for threading the cable of the sensor unit.

[0009] On the basis of the above technical scheme, preferably, the filler is filled between adjacent sensor units.

[0010] Further preferably, the filler is foam glue.

[0011] On the basis of the above technical scheme, preferably, the sensor unit comprises a bottom plate, a top plate, two side plates, an elastic body and a strain resistance piece, the bottom plate is fixedly installed on the base plate, the two side plates are fixedly arranged on the two sides of the surface of the bottom plate, the elastic body is arranged on the surface of the bottom plate and located between the two side plates, and the top plate is fixedly connected to the top surface of the elastic body and located between the two side plates; a plurality of cavities are formed in the elastic body, and the strain resistance piece is fixedly attached to the inner wall of the cavity.

[0012] Further preferably, the elastic body comprises two first connecting pieces, a second connecting piece and two third connecting pieces, the two first connecting pieces are symmetrically fixedly attached to the bottom surface of the top plate and the surface of the bottom plate, the second connecting piece is fixedly connected between the two first connecting pieces, and the two third connecting pieces are symmetrically fixedly connected between the top of the second connecting piece and the bottom surface of one of the first connecting pieces and between the bottom of the second connecting piece and the surface of the other first connecting piece.

[0013] Further preferably, a core cavity is formed in the center of the second connecting piece, side cavities are symmetrically formed on the two sides of the second connecting piece, the side cavities and the core cavity are isolated from each other, and the strain resistance piece is symmetrically arranged on the surface of the second connecting piece in contact with the two side cavities and the central core cavity.

[0014] Further preferably, a top cavity is symmetrically formed in the side surface of the first connecting piece located above, a bottom cavity is symmetrically formed in the side surface of the first connecting piece located below, and the symmetric top cavity and bottom cavity are both communicated with the corresponding side cavity.

[0015] Further preferably, the sensor unit further comprises two end plates, the end plates are symmetrically arranged at the two ends of the elastic body, the side edges of the end plates are fixedly connected to the two side plates, the top edge of the end plate is fixedly connected to the bottom surface of the top plate, and the bottom edge of the end plate is fixedly connected to the surface of the bottom plate.

[0016] On the other hand, a method for applying a multi-row strip-shaped sensor is provided, comprising the following steps,

[0017] S1 excavating a construction groove on the road surface, the excavation length is 1000mm to 1500mm, and the excavation depth is 300mm to 550mm.

[0018] S2 builds a reinforcing structure at the bottom of the construction groove, lays a double-layer welded reinforcing mesh on the reinforcing structure, and then pours quick repair material into the construction groove, the quick repair material being a BY(S) series high polymer fiber;

[0019] S3 after the quick repair material hardens, positioning grooves are formed on the top surface of the quick repair material, and multiple-row strip-shaped sensors are installed, and finally filling material is poured into the positioning grooves.

[0020] The multiple-row strip-shaped sensor of the application has the following beneficial effects compared with the prior art:

[0021] (1) Multiple sensors are arranged in multiple rows and fixedly installed on the base plate, seamless butt joint of the multiple-row sensors is achieved, a protective sleeve composed of a bottom plate, a side plate and a top plate is arranged outside the sensor, installation time is short, the service life of the sensor after installation on the road surface is effectively prolonged, the installation environment such as a viaduct that cannot be hardened by a surface layer and an installation area that cannot be closed for a long time due to a huge traffic flow is applicable, and the sensor is convenient to take out and re-lay when repairing and reconstructing the road surface.

[0022] (2) The construction method of building a reinforcing structure at the bottom of the construction groove and pouring quick repair material can shorten the reconstruction period of the diseased road surface to the maximum, is convenient for hardening treatment of the installation area of the sensor, shortens the installation and reconstruction time, and is convenient for maintenance, thereby effectively relieving the traffic congestion pressure and driving safety pressure problems caused by road closure.

[0023] (3) The base plate is arranged on the base and buckled, the threading cavity surrounded by the base plate and the base plate is convenient for effectively protecting the cable of the sensor unit, the multiple sensor units arranged side by side are measured more accurately, and the workload of excavating a cable groove on the road surface is reduced, and the damage to the road surface is reduced.

[0024] (4) The filling material is filled in the positioning grooves and between the sensor units, the filling material has good ductility, excellent toughness and impact resistance after solidification, so that the buried device can be integrated with the ground.

[0025] (5) The elastic body is provided with a plurality of cavities, the cavities are relatively independent and stable in environment and are not easily disturbed by external factors, so that the stability and reliability of the sensor unit measurement can be ensured; the elastic body will deform under external force and will return to the original state after the external force is removed, so that the strain resistance piece can indirectly weigh through deformation. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and other drawings can be obtained by those of ordinary skill in the art without any creative effort.

[0027] Figure 1 It is a perspective view of the multi-row strip-shaped sensor of the present application.

[0028] Figure 2 It is a road section view of the application method of the multi-row strip-shaped sensor of the present application.

[0029] Figure 3 It is a road plan view of the application method of the multi-row strip-shaped sensor of the present application.

[0030] Figure 4 It is a perspective view of the sensor unit of the present application.

[0031] Figure 5 It is a front sectional view of the first embodiment of the sensor unit of the present application.

[0032] Figure 6 It is a front sectional view of the second embodiment of the sensor unit of the present application.

[0033] Figure 7 It is a front sectional view of the third embodiment of the sensor unit of the present application.

[0034] In the figure: 1, sensor unit; 11, bottom plate; 12, side plate; 13, top plate; 14, elastic body; 140, cavity; 1401, side cavity; 1402, core cavity; 1403, top cavity; 1404, bottom cavity; 141, first connecting sheet; 142, second connecting sheet; 143, third connecting sheet; 15, strain resistance sheet; 16, end face plate; 2, positioning groove; 3, positioning plate assembly; 31, base plate; 32, wing plate; 33, cover plate; 331, clamping groove; 34, positioning hole; 35, threading cavity; 4, expansion fixing bolt; 5, filling material; 6, quick repair material; 7, steel structure; 8, double-layer welded steel mesh. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort belong to the protection scope of the present application.

[0036] AsFigure 1 As shown, a multi-row strip sensor of the present invention includes a sensor unit 1, a positioning groove 2 is provided on the road surface, the sensor unit 1 is disposed in the positioning groove 2, and also includes a positioning plate assembly 3, expansion fixing bolts 4 and filler 5. The positioning plate assembly 3 includes a base plate 31, and positioning holes 34 are symmetrically provided on both sides of the base plate 31. The expansion fixing bolts 4 pass through the positioning holes 34 to fix the base plate 31 in the positioning groove 2. Five sensor units 1 are fixed to the surface of the base plate 31 in close contact with each other. The top surface of the sensor unit 1 is flush with the road surface, and the filler 5 is filled in the positioning groove 2.

[0037] The positioning plate assembly 3 also includes a wing plate 32 and a cover plate 33. The wing plates 32 are fixedly connected to both sides of the base plate 31 in pairs. The cover plate 33 is fastened to both sides of the base plate 31. The top surface of the cover plate 33 is flush with the road surface. A slot 331 is opened on the top of the cover plate 33. The top of the wing plate 32 is fixedly fastened in the slot 331. The wing plate 32, the cover plate 33 and the base plate 31 form a wire-passing cavity 35 for inserting the cable of the sensor unit 1.

[0038] The filler 5 is filled between adjacent sensor units 1.

[0039] As can be seen from the above scheme, the substrate 31 serves as a rigid base, and multiple sensor units 1 are fixed on the substrate 31, which can keep the detection surface of each sensor unit 1 at the same height, thereby improving the accuracy of weighing measurement; the cover plate 33 is fastened to the substrate 31, and then filler 5 is filled between the positioning groove 2 or the cover plate 33 and the sensor unit 1. The filler 5 is preferably foam adhesive, which has good ductility and excellent toughness and impact resistance after curing, so that the cover plate 33 and the upper surface of the sensor unit 1 are flush with the road surface; the enclosed wiring cavity 35 forms the wiring space for the cable.

[0040] It should be noted that the five-row bar sensor is specifically composed of three rows of weighing sensors and two rows of wheel axle identification sensors arranged in sequence at intervals.

[0041] Meanwhile, compared to traditional flat-plate weighing devices, multi-row bar sensors have a smaller weighing platform mass and thickness, causing less damage to the road surface. They also avoid the problem of significant platform deformation inertia caused by overloaded vehicles passing by, or the serious decrease in weighing accuracy when traffic flow is too high. Compared to traditional quartz or narrow strip sensors, the spacing between adjacent sensors is smaller, resulting in higher accuracy in detecting low-speed or variable-speed vehicles.

[0042] Specifically, the present invention is also implemented through the following technical solutions.

[0043] like Figure 1 As shown, combined with Figure 4The sensor unit 1 comprises a bottom plate 11, a top plate 13, two side plates 12, an elastic body 14 and a strain resistance sheet 15, the bottom plate 11 is fixedly installed on the base plate 31, the two side plates 12 are fixedly arranged on the two sides of the surface of the bottom plate 11, the elastic body 14 is arranged on the surface of the bottom plate 11 and located between the two side plates 12, and the top plate 13 is fixedly connected to the top surface of the elastic body 14 and located between the two side plates 12; a plurality of cavities 140 are arranged in the elastic body 14, the strain resistance sheet 15 is fixedly attached to the inner wall of the cavity 140, and the bottom plate 11, the side plate 12 and the top plate 13 form a protective sleeve to protect the inner elastic body 14 and the strain resistance sheet 15, thereby improving the detection accuracy of the sensor unit 1 and effectively prolonging the service life of the sensor after being installed on the road surface.

[0044] By adopting the above technical scheme, the cavities 140 are arranged in the elastic body 14, the cavities 140 are relatively independent and stable in environment and are not easily disturbed by external factors, so that the stability and reliability of the sensor unit 1 in measurement can be ensured; meanwhile, the elastic body 14 will be deformed after being subjected to external force and will return to the original state after the external force is removed, so that the strain resistance sheet 15 can indirectly weigh through deformation.

[0045] As the first and second embodiments of the elastic body 14, as shown in Figure 1 , in combination with Figure 5 and Figure 6 , the elastic body 14 comprises two first connecting sheets 141, one second connecting sheet 142 and two third connecting sheets 143, the two first connecting sheets 141 are symmetrically fixedly attached to the bottom surface of the top plate 13 and the surface of the bottom plate 11, the second connecting sheet 142 is fixedly connected between the two first connecting sheets 141, and the two third connecting sheets 143 are symmetrically fixedly connected between the top of the second connecting sheet 142 and the bottom surface of one of the first connecting sheets 141 and between the bottom of the second connecting sheet 142 and the surface of the other first connecting sheet 141.

[0046] Among them, the second connecting sheet 142 is provided with a core cavity 1402 at the center, and a side cavity 1401 is symmetrically arranged on the two sides of the second connecting sheet 142, the side cavity 1401 and the core cavity 1402 are isolated from each other, and the strain resistance sheet 15 is symmetrically arranged on the surface of the second connecting sheet 142 which contacts the two side cavities 1401 and the middle core cavity 1402.

[0047] As the third embodiment of the elastic body 14, as shown in Figure 1 , in combination with Figure 7 , the side surface of the first connecting sheet 141 located at the upper side is symmetrically provided with a top cavity 1403, and the side surface of the first connecting sheet 141 located at the lower side is symmetrically provided with a bottom cavity 1404, and the symmetric top cavity 1403 and the bottom cavity 1404 are communicated with the corresponding side cavities 1401.

[0048] As some optional embodiments, the sensor unit 1 further comprises two end panels 16, which form a closed protection for the elastic body 14 from both ends, the end panels 16 are symmetrically arranged at both ends of the elastic body 14, the side edges of the end panels 16 are fixedly connected to the two side plates 12 respectively, and the top edges of the end panels 16 are fixedly connected to the bottom surface of the top plate 13, and the bottom edges of the end panels 16 are fixedly connected to the surface of the bottom plate 11.

[0049] As shown in Figure 1 , in combination Figure 2 and Figure 3 , the application method comprises the following steps,

[0050] S1 excavates a construction groove on the road surface, the excavation length is 1000mm to 1500mm, and the excavation depth is 300mm to 550mm;

[0051] S2 builds a steel bar structure 7 at the bottom of the construction groove, lays a double-layer welded steel bar net 8 on the steel bar structure 7, then pours quick repair material 6 into the construction groove, and the quick repair material 6 is a BY(S) series high polymer fiber;

[0052] S3 after the quick repair material 6 is hardened, a positioning groove 2 is arranged on the top surface of the quick repair material 6, and a multi-row strip-shaped sensor is installed, and finally filling material 5 is poured into the positioning groove 2.

[0053] By using the above construction and reconstruction method, the reconstruction period of the diseased road surface can be shortened to the maximum, the installation area of the sensor can be conveniently hardened, the installation and reconstruction time is short, and the maintenance is convenient, so that the traffic congestion pressure and driving safety pressure problems caused by the closed road can be effectively relieved.

[0054] Working principle:

[0055] For the diseased road surface, when the multi-row sensor needs to be installed, first, a construction groove is excavated on the road surface, the excavation length is 1000mm to 1500mm, and the excavation depth is 300mm to 550mm; then, a steel bar structure 7 is built at the bottom of the construction groove, a double-layer welded steel bar net 8 is laid on the steel bar structure 7, then quick repair material 6 is poured into the construction groove, and the quick repair material 6 is a BY(S) series high polymer fiber; after the quick repair material 6 is hardened, a positioning groove 2 is arranged on the top surface of the quick repair material 6, and a multi-row strip-shaped sensor is installed, and finally filling material 5 is poured into the positioning groove 2.

[0056] Under the premise of ensuring that the road subgrade is intact and has no diseases, or for the hardened road surface, the multi-row strip-shaped sensor can be directly laid by opening the positioning groove 2 on the asphalt road surface.

[0057] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-row strip sensor comprising a sensor unit (1) provided in a positioning groove (2) formed in a road surface, characterized in that: It also includes positioning plate assembly (3), expansion fixing bolt (4) and filling material (5); The positioning plate assembly (3) includes base plate (31), wing plate (32) and cover plate (33); The base plate (31) is symmetrically provided with positioning holes (34) on both sides; The cover plate (33) is buckled on both sides of the base plate (31), the top surface of the cover plate (33) is flush with the road surface, and the top of the cover plate (33) is provided with a clamping groove (331); The wing plate (32) is fixedly connected to the both sides of the base plate (31), the top of the wing plate (32) is fixedly clamped in the clamping groove (331), and the wing plate (32), the cover plate (33) and the base plate (31) form a threading cavity (35) for threading the cable of the sensor unit (1); The expansion fixing bolt (4) passes through the positioning hole (34) to fix the base plate (31) in the positioning groove (2); Five sensor units (1) are fixed on the surface of the base plate (31) and are in close contact with each other, the top surface of the sensor unit (1) is flush with the road surface, the length direction of the sensor unit (1) is consistent with the length direction of the positioning groove (2), five sensor units (1) are arranged along the width direction of the positioning groove (2), and five sensor units (1) are sequentially and spacedly arranged by three rows of weighing sensors and two rows of wheel shaft identification sensors; The filling material (5) is filled in the positioning groove (2), and the filling material (5) is filled between adjacent sensor units (1); The application method of the multi-row strip-shaped sensor includes the following steps, S1: excavate a construction groove on the road surface, the excavation length is 1000mm to 1500mm, and the excavation depth is 300mm to 550mm; S2: build a steel structure (7) on the bottom of the construction groove, lay a double-layer welded steel mesh (8) on the steel structure (7), then pour quick repair material (6) into the construction groove, and the quick repair material (6) is BY(S) series high polymer fiber; S3: after the quick repair material (6) is hardened, a positioning groove (2) is formed on the top surface of the quick repair material (6), and the multi-row strip-shaped sensor is installed, and finally the filling material (5) is poured into the positioning groove (2).

2. A multi-collimated strip sensor according to claim 1, characterized in that: The filling material (5) is foam glue.

3. A multi-cascaded strip sensor according to claim 1, wherein: The sensor unit (1) includes a bottom plate (11), a top plate (13), two side plates (12), an elastic body (14) and a strain resistance piece (15), the bottom plate (11) is fixedly installed on the base plate (31), the two side plates (12) are fixedly arranged on the surfaces of the bottom plate (11) on both sides, the elastic body (14) is arranged on the surface of the bottom plate (11) and located between the two side plates (12), and the top plate (13) is fixedly connected to the top surface of the elastic body (14) and located between the two side plates (12); a plurality of cavities (140) are formed in the elastic body (14), and the strain resistance piece (15) is fixedly attached to the inner wall of the cavity (140).

4. A multiple array bar sensor according to claim 3, wherein: The elastic body (14) comprises two first connecting pieces (141), one second connecting piece (142) and two third connecting pieces (143), the two first connecting pieces (141) are symmetrically fixed to the bottom surface of the top plate (13) and the surface of the bottom plate (11), the second connecting piece (142) is fixedly connected between the two first connecting pieces (141), and the two third connecting pieces (143) are symmetrically fixedly connected between the top of the second connecting piece (142) and the bottom surface of one of the first connecting pieces (141) and between the bottom of the second connecting piece (142) and the surface of the other first connecting piece (141).

5. A multiple array bar sensor according to claim 4, wherein: A core cavity (1402) is formed in the center of the second connecting piece (142), and side cavities (1401) are symmetrically formed on both sides of the second connecting piece (142), the side cavities (1401) and the core cavity (1402) are isolated from each other, and the strain resistance pieces (15) are symmetrically arranged on the surface of the second connecting piece (142) in contact with the two side cavities (1401) and the middle core cavity (1402).

6. A multiple array bar sensor according to claim 5, wherein: A top cavity (1403) is symmetrically formed in the side of the first connecting piece (141) located above, a bottom cavity (1404) is symmetrically formed in the side of the first connecting piece (141) located below, and the symmetric top cavity (1403) and bottom cavity (1404) are both in communication with the corresponding side cavities (1401).

7. A multi-cascaded strip sensor according to claim 3, wherein: The sensor unit (1) further comprises two end panels (16), the end panels (16) are symmetrically arranged at both ends of the elastic body (14), the side edges of the end panels (16) are fixedly connected to the two side plates (12), the top edges of the end panels (16) are fixedly connected to the bottom surface of the top plate (13), and the bottom edges of the end panels (16) are fixedly connected to the surface of the bottom plate (11).

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