阅读说明：本技术 一种基于低压电力载波的防干扰装置 (Anti-interference device based on low-voltage power line carrier ) 是由 龚大江 常强 项稚涵 孔祥麟 王勇 陈本富 李培源 杨晨 于 2021-09-29 设计创作，主要内容包括：本发明公开了一种基于低压电力载波的防干扰装置,此装置包括安装盒、紧固组件和减震组件,其中,安装盒；紧固组件,设置于安装盒内,包括安装孔、设置于安装孔内的弹性垫片和弹簧；以及,减震组件,设置于安装盒内,包括缓冲架、设置于缓冲架内的挤压片和与挤压片连接的压板；本发明中基于低压电力载波的防干扰装置通过安装盒内对抗扰组件上下固定并将其紧贴被测表面,在输出光缆上与被测光缆紧贴,并在连接通道内采用压板与挤压片降低外部电缆对抗扰组件探头的颤动影响。(The invention discloses an anti-interference device based on a low-voltage power line carrier, which comprises a mounting box, a fastening component and a damping component, wherein the mounting box is arranged; the fastening assembly is arranged in the mounting box and comprises a mounting hole, an elastic gasket and a spring, wherein the elastic gasket and the spring are arranged in the mounting hole; the damping assembly is arranged in the mounting box and comprises a buffer frame, an extrusion sheet arranged in the buffer frame and a pressing plate connected with the extrusion sheet; the interference preventing device based on the low-voltage power line carrier wave is used for fixing the interference preventing component up and down through the mounting box and enabling the interference preventing component to be tightly attached to the surface to be detected, is tightly attached to the cable to be detected on the output optical cable, and reduces the vibration influence of an external cable on the probe of the interference preventing component by adopting the pressing plate and the extruding sheet in the connecting channel.)

1. The utility model provides an jam-proof device based on low pressure power line carrier which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

a mounting box (100);

the fastening assembly (200) is arranged in the mounting box (100) and comprises a mounting hole (201), an elastic gasket (202) arranged in the mounting hole (201) and a spring (203);

the shock absorption assembly (300) is arranged in the mounting box (100) and comprises a buffer frame (301), an extrusion sheet (302) arranged in the buffer frame (301) and a pressing plate (303) connected with the extrusion sheet (302); and the number of the first and second groups,

the anti-interference assembly (400) is arranged in the mounting box (100) and comprises a first magnetic ring group (401), a capacitor (402) connected with the first magnetic ring group (401) in parallel and a second magnetic ring group (403) connected with the capacitor (402).

2. The interference prevention apparatus based on a low voltage power carrier according to claim 1, wherein: the bottom of the mounting box (100) is arc-shaped, a channel (101) is formed in the side wall of the mounting box, a contact port (102) is formed in the bottom of the mounting box, and a limiting groove (103) is formed in the mounting box.

3. The interference prevention apparatus based on a low voltage power carrier according to claim 2, wherein: the fastening assembly (200) is arranged in the limiting groove (103), the channel (101) is communicated with the limiting groove (103), the channel (101) is arranged in a certain gradient, the horizontal height of one end, connected with the limiting groove (103), of the vertical section is higher, and the horizontal height of one end, connected with the side wall, of the channel is lower; the contact port (102) is arranged at the bottom of the limiting groove (103).

4. The interference prevention apparatus based on a low voltage power carrier according to claim 3, wherein: the mounting hole (201) is arranged above the inner side of the limiting groove (103), is positioned at the top of the inner side of the mounting box (100), is opposite to the limiting groove (103) and is positioned on the same vertical line, and the size of the inner wall of the limiting groove (103) is the same as that of the inner wall of the mounting hole (201).

5. The interference prevention apparatus based on a low voltage power carrier according to claim 4, wherein: the elastic gasket (202) is arranged in the mounting hole (201), the spring (203) is connected with the elastic gasket (202) and the inner wall of the mounting hole (201), the size of the elastic gasket (202) is smaller than that of the inner wall of the mounting hole (201), and the length of the spring (203) and the elastic gasket (202) in a natural state is not more than the depth of the inner wall of the mounting hole (201).

6. The interference prevention apparatus based on a low voltage power carrier according to claim 5, wherein: the buffer frame (301) is arranged in the channel (101), the whole channel is a cuboid, a connecting hole (301a) is formed in the side wall of the buffer frame, the connecting hole (301a) penetrates through the buffer frame (301), the buffer frame is arranged at the bottom, a placing groove (301b) is further formed in the buffer frame (301), and the connecting hole (301a) is arranged at the bottom of the placing groove (301 b).

7. The interference prevention apparatus based on a low voltage power carrier according to claim 6, wherein: standing groove (301b) top, screens groove (301c) have been seted up at buffer shelf (301) inner wall top, screens groove (301c) encircle buffer shelf (301) inner wall and set up, are located the screens groove (301c) bottom of standing groove (301b) minor face and have still seted up fillet (301 d).

8. The interference prevention apparatus based on a low voltage power carrier according to claim 7, wherein: the clamp plate (303) is arranged in the clamping groove (301c), the top of the clamp plate is provided with a circle of cross rod (303a), the cross rod (303a) can be embedded into the clamping groove (301c), and the two sides of the short side of the cross rod are symmetrically provided with clamp plates (303 b).

9. The interference prevention apparatus based on a low voltage power carrier according to claim 8, wherein: the clamp plate (303b) is composed of an elastic edge (303b-1), a hard plate (303b-2) and a resisting plate (303b-3), the elastic edge (303b-1) is fixedly connected with the cross rod (303a), the elastic edge (303b-1) is obliquely arranged, the corner connected with the cross rod (303a) is attached to the fillet (301d), the hard plate (303b-2) is arranged at the bottom of the elastic edge (303b-1), the resisting plate (303b-3) is arranged above the elastic edge (303b-1), the top of the resisting plate is provided with a corner jack, one end of the pressing plate extending along two sides of the apex angle is connected with the hard plate (303b-2), the other end of the pressing plate is connected with the middle part of the elastic edge (303b-1), the vertical height of the pressing plate (303) is not more than the height of the inner wall of the buffer frame (301), the extruding sheet (302) is T-shaped, the clamping device comprises an elastic sheet (302a) arranged at the top and a limiting rod (302b) connected with the elastic sheet (302a), wherein the horizontal length of the elastic sheet (302a) exceeds the cross rod (303a), the limiting rod (302b) is arranged in the center of the elastic sheet (302a) and is positioned between the two clamping plates (303b), and when the clamping device is in an installation state, the depth of the limiting rod (302b) is not more than the depth of an inner abutting plate (303b-3) of the clamping plate (303).

10. The interference prevention apparatus based on a low voltage power carrier of claim 9, wherein: the first magnetic ring set (401) is connected with an electric meter, and the second magnetic ring set (402) is connected with a user side.

Technical Field

The invention relates to the technical field of power detection tools, in particular to an anti-interference device based on low-voltage power line carriers.

Background

The existing meter reading method is characterized in that a filter capacitor is connected to a noise generation power supply in parallel, noise passes through a filter and is in short circuit with a zero line or a ground line, the influence of the noise is reduced, but a carrier signal also belongs to a high-frequency signal, so that the carrier signal can be weakened, and the meter reading difficulty is caused. The magnetic ring presents resistance R under high frequency, constitutes RC low pass filter with ann rule electric capacity C, and is stronger than original scheme noise suppression ability, and is littleer to carrier signal's influence, sets up fastening and damper assembly in the device simultaneously, fixes from top to bottom to the anti-interference circuit in through the mounting box, hugs closely with being surveyed the cable on the output cable to adopt clamp plate and extrusion piece to reduce the influence of quivering of external cable in interface channel.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

In view of the above-mentioned problems of the interference prevention device based on the conventional low voltage power carrier.

Therefore, the invention aims to provide an anti-interference device based on a low-voltage power carrier, in the prior art, a cable mounted on an electric meter is usually wound and fixed by an adhesive tape, the mounting mode is not firm, and the carrier signal is also a high-frequency signal, so that the carrier signal is weakened by a filter capacitor, and the meter reading is difficult.

In order to solve the technical problems, the invention provides the following technical scheme: the anti-interference device based on the low-voltage power carrier comprises a mounting box, a fastening assembly and a damping assembly, wherein the mounting box is provided with a plurality of through holes; the fastening assembly is arranged in the mounting box and comprises a mounting hole, an elastic gasket and a spring, wherein the elastic gasket and the spring are arranged in the mounting hole; and the damping component is arranged in the mounting box and comprises a buffering frame, an extrusion sheet arranged in the buffering frame and a pressing plate connected with the extrusion sheet, and the anti-interference component is arranged in the mounting box and comprises a first magnetic ring group, a capacitor connected with the first magnetic ring group in parallel and a second magnetic ring group connected with the capacitor.

As a preferable solution of the interference preventing device based on the low voltage power carrier of the present invention, wherein: the mounting box bottom is the arc, and has seted up the passageway on its lateral wall, and the bottom is provided with the contact hole, and limiting groove has been seted up to inside.

As a preferable solution of the interference preventing device based on the low voltage power carrier of the present invention, wherein: the fastening assembly is arranged in the limiting groove, the channel is communicated with the limiting groove, the channel is arranged in a certain gradient, the horizontal height of one end, connected with the limiting groove, of the vertical section is higher, and the horizontal height of one end, connected with the side wall, of the vertical section is lower; the contact opening is arranged at the bottom of the limiting groove.

As a preferable solution of the interference preventing device based on the low voltage power carrier of the present invention, wherein: the mounting hole set up in spacing inslot top is located top in the mounting box, and with the spacing groove sets up relatively, is in same vertical line, spacing inslot wall size is the same with the mounting hole inner wall size.

As a preferable solution of the interference preventing device based on the low voltage power carrier of the present invention, wherein: the elastic gasket set up in the mounting hole, spring coupling elastic gasket and mounting hole inner wall, the elastic gasket size is less than mounting hole inner wall size, length when spring and elastic gasket are in natural state is no longer than the mounting hole inner wall degree of depth.

As a preferable solution of the interference preventing device based on the low voltage power carrier of the present invention, wherein: the buffering frame is arranged in the passageway, wholly is the cuboid, has seted up the connecting hole on its lateral wall, the connecting hole runs through the buffering frame, and it sets up in the bottom, the standing groove has still been seted up to buffering frame inside, the connecting hole sets up in the standing groove bottom.

As a preferable solution of the interference preventing device based on the low voltage power carrier of the present invention, wherein: the standing groove top, the screens groove has been seted up at buffer frame inner wall top, the screens groove encircles the buffer frame inner wall and sets up, and the fillet has still been seted up to the screens groove bottom that is located the standing groove minor face.

As a preferable solution of the interference preventing device based on the low voltage power carrier of the present invention, wherein: the clamp plate sets up in the screens inslot, and its top is the round horizontal pole, the horizontal pole can imbed the screens inslot, and its minor face bilateral symmetry is provided with splint.

As a preferable solution of the interference preventing device based on the low voltage power carrier of the present invention, wherein: the clamping plate is composed of an elastic edge, a hard plate and a supporting plate, the elastic edge is fixedly connected with the cross rod, the elastic edge is obliquely arranged, a corner connected with the cross rod is attached to the round angle, the hard plate is arranged at the bottom of the elastic edge, the supporting plate is arranged above the elastic edge, a corner jacking device is arranged at the top of the supporting plate, one end of the supporting plate is extended along two sides of the top angle and connected with the hard plate, the other end of the supporting plate is connected with the middle of the elastic edge, the vertical height of the pressing plate is not more than the height of the inner wall of the buffer frame, the extrusion piece is of a T shape and comprises an elastic piece arranged at the top and a limiting rod connected with the elastic piece, the horizontal length of the elastic piece exceeds the cross rod, the limiting rod is arranged in the center of the elastic piece and located between the two clamping plates, and the located depth of the supporting plate is not more than the located depth of the pressing plate in the installation state.

As a preferable solution of the interference preventing device based on the low voltage power carrier of the present invention, wherein: the first magnetic ring group is connected with an electric meter, and the second magnetic ring group is connected with a user side.

The invention has the beneficial effects that:

the noise user is filtered through the magnetic ring capacitor, and compared with the original scheme, the magnetic ring is added and the filter circuit is improved. The magnetic ring presents resistance R under high frequency, constitutes RC low pass filter with ann rule electric capacity C, and is stronger than original scheme noise suppression ability, and is littleer to carrier signal's influence, sets up fastening and damper assembly in the device simultaneously, fixes from top to bottom to the anti-interference circuit in through the mounting box, hugs closely with being surveyed the cable on the output cable to adopt clamp plate and extrusion piece to reduce the influence of quivering of external cable in interface channel.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is a schematic view of an overall structure of an interference preventing device based on a low-voltage power carrier according to the present invention.

Fig. 2 is a schematic view of a buffer frame structure of the interference preventing device based on the low-voltage power carrier according to the present invention.

Fig. 3 is a cross-sectional view of a buffer frame structure of the interference preventing device based on low-voltage power carrier according to the present invention.

Fig. 4 is a schematic diagram of a pressing plate structure of the interference preventing device based on the low-voltage power carrier according to the present invention.

Fig. 5 is a structural sectional view of a shock-absorbing assembly of the interference preventing device based on low-voltage power carrier according to the present invention.

Fig. 6 is a circuit diagram of an anti-interference component of the anti-interference apparatus based on low-voltage power carrier according to the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Furthermore, the present invention is described in detail with reference to the drawings, and in the detailed description of the embodiments of the present invention, the cross-sectional view illustrating the structure of the device is not enlarged partially according to the general scale for convenience of illustration, and the drawings are only exemplary and should not be construed as limiting the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Examples

Referring to fig. 1 to 6, in order to provide a first embodiment of the present invention, there is provided an interference preventing device based on a low voltage power carrier, the device including a mounting box 100, a fastening assembly 200, and a damping assembly 300, wherein the mounting box 100; the fastening assembly 200 is arranged in the mounting box 100 and comprises a mounting hole 201, an elastic gasket 202 arranged in the mounting hole 201 and a spring 203; and the damping assembly 300 is arranged in the mounting box 100 and comprises a buffer frame 301, an extrusion sheet 302 arranged in the buffer frame 301 and a pressing plate 303 connected with the extrusion sheet 302, and the anti-interference assembly 400 is arranged in the mounting box 100 and comprises a first magnetic ring group 401, a capacitor 402 connected with the first magnetic ring group 401 in parallel and a second magnetic ring group 403 connected with the capacitor 402.

Wherein, mounting box 100 bears anti-interference assembly 400 circuit, and fastening components 200 can fix anti-interference assembly 400 inside mounting box 100, reduces the influence that outside vibrations brought, and shock-absorbing assembly 300 sets up on anti-interference assembly 400 output line, carries out the shock attenuation to output line and fixes, and it rocks the influence to anti-interference circuit to reduce the cable. Set up anti-interference subassembly 400 in the mounting hole 201, can cup joint outside anti-interference subassembly 400 through the inner wall diameter of equidimension equally, mounting hole 201 is fixed inside mounting box 100, it is spacing to this anti-interference circuit, elastic shim 202 can cooperate with spring 203 to set up in mounting hole 201, give anti-interference circuit to down effort, make it hug closely with the inner wall, buffer frame 301 bears all damper assembly 300, and set up on the output line, extrusion piece 302 and clamp plate 303 fix the extrusion to output cable, prevent that its shake from causing the skew to make and check meter inaccurate.

Further, the bottom of the mounting box 100 is arc-shaped, and the side wall thereof is provided with a channel 101, the bottom is provided with a contact port 102, and the inside is provided with a limiting groove 103. The fastening assembly 200 is arranged in the limiting groove 103, the channel 101 is communicated with the limiting groove 103, the channel 101 is arranged in a certain gradient, the horizontal height of one end, connected with the limiting groove 103, of the vertical section is higher, and the horizontal height of one end, connected with the side wall, of the vertical section is lower; the contact port 102 is disposed at the bottom of the limiting groove 103. The mounting hole 201 is arranged above the limiting groove 103, is located at the top of the mounting box 100, is opposite to the limiting groove 103, is located on the same vertical line, and the size of the inner wall of the limiting groove 103 is the same as that of the inner wall of the mounting hole 201. Elastic gasket 202 sets up in mounting hole 201, and spring 203 connects elastic gasket 202 and mounting hole 201 inner wall, and elastic gasket 202 size is less than mounting hole 201 inner wall size, and the length when spring 203 and elastic gasket 202 are in the natural condition is no longer than mounting hole 201 inner wall degree of depth.

The bottom of the installation box 100 is arc-shaped and can be more attached to the surface of a cable, an anti-interference assembly 400 circuit is arranged in the channel 101, the contact port 102 is arranged at the bottom of the installation box 100 and is used for providing an output interface to be connected with a user terminal, the channel 101 is arranged at a certain gradient to enable the circuit to be tightly attached to the outer wall to output and avoid overhead arrangement, the limiting groove 103 and the installation hole 201 are oppositely arranged and are positioned on the same vertical line, the diameter of the inner wall of the limiting groove 103 and the diameter of the inner wall of the installation hole 201 are consistent with the diameter of the outer wall of the anti-interference assembly 400 and can be sleeved outside the anti-interference assembly 400 to limit the anti-interference assembly 400 in the horizontal direction, the elastic gasket 202 and the spring 203 are arranged inside the installation hole 201, downward force is applied to the anti-interference assembly 400 above the anti-interference assembly 400 to prevent the up-interference assembly 400 from moving to cause unclear data collection, the anti-interference assembly 400 is limited in the vertical direction, so far, the anti-interference assembly 400 can be fixed inside the installation box 100, and clings to the inner wall.

The buffer frame 301 is arranged in the channel 101, is integrally rectangular, and has a connecting hole 301a formed in a side wall thereof, wherein the connecting hole 301a penetrates through the buffer frame 301, and is arranged at the bottom thereof, the buffer frame 301 is further provided with a placing groove 301b therein, and the connecting hole 301a is arranged at the bottom of the placing groove 301 b. Clamping groove 301c has been seted up at standing groove 301b top, buffer frame 301 inner wall top, and clamping groove 301c encircles buffer frame 301 inner wall and sets up, and fillet 301d has still been seted up to the clamping groove 301c bottom that is located the standing groove 301b minor face.

Further, the pressing plate 303 is disposed in the locking groove 301c, the top of the pressing plate is provided with a circle of cross bar 303a, the cross bar 303a can be embedded in the locking groove 301c, and the two sides of the short side of the pressing plate are symmetrically provided with clamping plates 303 b. The clamping plate 303b is composed of an elastic edge 303b-1, a hard plate 303b-2 and a supporting plate 303b-3, the elastic edge 303b-1 is fixedly connected with the cross rod 303a and is obliquely arranged, a corner connected with the cross rod 303a is attached to a fillet 301d, the hard plate 303b-2 is arranged at the bottom of the elastic edge 303b-1, the supporting plate 303b-3 is arranged above the elastic edge 303b-1, a corner is arranged at the top of the supporting plate to jack up, one end of the supporting plate extending along two sides of the vertex angle is connected with the hard plate 303b-2, the other end of the supporting plate is connected with the middle of the elastic edge 303b-1, and the vertical height of the pressing plate 303b is not more than the height of the inner wall of the buffer frame 301. The pressing sheet 302 is T-shaped and includes an elastic sheet 302a disposed on the top and a limiting rod 302b connected with the elastic sheet 302a, the horizontal length of the elastic sheet 302a exceeds the cross bar 303a, the limiting rod 302b is disposed in the center of the elastic sheet 302a and between the two clamping plates 303b, and when the pressing sheet is in an installation state, the depth of the pressing sheet is not more than the depth of the inner abutting plate 303b-3 of the pressing plate 303.

The buffer frame 301 is arranged in the channel 101, the side wall is provided with a connecting hole 301a capable of passing through an output cable of the anti-interference assembly 400, the placing groove 301b comprises a connecting hole 301a arranged at the bottom and a clamping groove 301c arranged at the top, the clamping groove 301c can be embedded into the pressing plate 303, a cross rod 303a at the top of the pressing plate 303 can be matched and embedded with the clamping groove 301c, a round corner 301d at the bottom of the clamping groove 301c provides a larger moving range for an elastic edge 303b-1 to enable the elastic edge 303b-1 to be pressed downwards and rotated for a certain angle, the hard plate 303b-2 is arranged at the bottom of the elastic edge 303b-1, the elastic edge 303b-1 drives the hard plate 303b-2 to press down an output circuit when being pressed downwards, the abutting plate 303b-3 is arranged above the hard plate 303b-2, the pressing sheet 302 presses the abutting plate 303b-3 through the elastic sheet 302a to further press the hard plate 303b-2 to the output cable, the stop bar 302b prevents the spring plate 302a from bending too much to cause metal fatigue between the two rigid plates 303 b-2.

The anti-interference assembly 400 is disposed in the mounting box 100, and includes a first magnetic ring group 401, a capacitor 402 connected in parallel with the first magnetic ring group 401, and a second magnetic ring group 403 connected to the capacitor 402. The first magnetic ring set 401 is connected with an electric meter, and the second magnetic ring set 402 is connected with a user terminal. The capacitor 402 component, which uses the RC low pass filter principle, provides a capacitive module for filtering. The specific implementation is that the zero-live line of the field filter plate (mainly a filter circuit and a capacitor C) is pressed into the air switch of a user, and the resistance R is presented by the second magnetic ring group 402 at high frequency, so that the impedance of the user side can be improved, and the influence on a carrier signal is avoided. A first magnetic ring group 401 is installed at the end of the hollow outlet wire, and filtering is carried out by using a resistor R presented by a magnetic ring at high frequency and an RC low-pass filter of a field filtering plate (capacitor) group layer. Using the formula f 1/2, the noise signal frequency is suppressed and filtered when the frequency is greater than f. Ideally, 4 magnets are added at two ends respectively, but the adjustment can be made according to the environment, and at least 2 magnets are added at two ends respectively (2 magnet rings are added on the live wire at the air-open incoming line side, 2 magnet rings are added on the zero line, 2 magnet rings are added on the live wire at the air-open outgoing line side, and 2 magnet rings are added on the zero line), and the total number is 8.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.