5G communication unmanned vehicle safety monitoring device

文档序号:1870074 发布日期:2021-11-23 浏览:28次 中文

阅读说明:本技术 一种5g通讯无人车安全监控装置 (5G communication unmanned vehicle safety monitoring device ) 是由 刘云龙 考永贵 王娟 赵雪芹 宗广灯 谷善茂 高在瑞 王国营 于 2021-07-05 设计创作,主要内容包括:本发明公开了一种5G通讯无人车安全监控装置,包括位于车体顶部的安装基座、固定机构、升降机构和通讯机构;固定机构包括连接座、壳体和探测仪;升降机构包括壳体、电机、电动推杆和探测仪;通讯机构包括探测仪、全景摄像仪、固定摄像仪和雷达传感器。可拆装的连接座和壳体能够提升5G通讯装置的安全稳定性,通过螺纹套管和螺杆配合能够加固壳体和连接座;设置自动伸缩的全景探测仪在驻车载客过程中无死角监控车体周围环境;设置固定摄像仪和雷达传感器对车体周围环境进行全方位监测,配合车前摄像仪和车后摄像仪提高前后方车辆和障碍物的动态监测准确度,通过5G通讯模块和单片机实时监控车辆的行驶状态,提升无人车行驶的安全性。(The invention discloses a 5G communication unmanned vehicle safety monitoring device, which comprises a mounting base, a fixing mechanism, a lifting mechanism and a communication mechanism, wherein the mounting base is positioned at the top of a vehicle body; the fixing mechanism comprises a connecting seat, a shell and a detector; the lifting mechanism comprises a shell, a motor, an electric push rod and a detector; the communication mechanism comprises a detector, a panoramic camera, a fixed camera and a radar sensor. The detachable connecting seat and the shell can improve the safety and stability of the 5G communication device, and the shell and the connecting seat can be reinforced through the matching of the threaded sleeve and the screw; the automatic telescopic panoramic detector is arranged to monitor the surrounding environment of the car body without dead angles in the process of parking and carrying passengers; set up fixed appearance and the radar sensor of making a video recording and carry out all-round monitoring to automobile body surrounding environment, the dynamic monitoring degree of accuracy of back vehicle and barrier is improved to the appearance of making a video recording behind cooperation plantago and the car, through the travel state of 5G communication module and singlechip real time monitoring vehicle, promotes the security that unmanned car went.)

1. The utility model provides a 5G communication unmanned vehicle safety monitoring device which characterized in that: comprises a mounting base (2) positioned at the top of a vehicle body (1), a fixing mechanism, a lifting mechanism and a communication mechanism;

the fixing mechanism comprises a connecting seat (3), a shell (4) and a detector (5), the connecting seat (3) is attached to the surface of the mounting base (2), the inside of the connecting seat (3) is movably sleeved with the detector (5), the bottom of the connecting seat (3) is fixedly connected with a threaded sleeve (6), the threaded sleeve (6) extends into the shell (4), the inside of the threaded sleeve (6) is in threaded connection with a screw rod (7), the bottom of the shell (4) is inserted into the screw rod (7) in a penetrating manner, the side wall of the shell (4) is fixedly connected with a metal elastic sheet (8), and the metal elastic sheet (8) is in contact with an insertion rod (9);

the lifting mechanism comprises a shell (4), a motor (10), an electric push rod (11) and a detecting instrument (5), wherein the shell (4) is fixedly connected with the motor (10) and the electric push rod (11) respectively, the end part of the electric push rod (11) is fixedly connected with a movable plate (21), the movable plate (21) is rotatably connected with the inside of a limiting plate (20), the limiting plate (20) is movably sleeved with a sleeve plate (19) and fixedly connected with the sleeve plate (19) through a screw (22), the output end of the motor (10) is fixedly connected with a guide rod (17) through a driving shaft (18), the guide rod (17) is movably inserted into the inside of the detecting instrument (5), and the cross section of the guide rod (17) is of a square structure;

communication mechanism includes detection instrument (5), panorama camera appearance (12), fixed camera appearance (25) and radar sensor (26), panorama camera appearance (12) are installed to detection instrument (5) top lateral wall gomphosis, fixed camera appearance (25) and radar sensor (26) all with connecting seat (3) surface gomphosis installation, automobile body (1) front end and rear end respectively with the plantago camera appearance (27) and the car after camera appearance (28) fixed mounting.

2. The 5G communication unmanned vehicle safety monitoring device of claim 1, wherein: automobile body (1) top inner wall is connected with casing (4) laminating, casing (4) correspond each other with mounting base (2), automobile body (1) and mounting base (2) all cup joint with screw sleeve (6) activity.

3. The 5G communication unmanned vehicle safety monitoring device of claim 1, wherein: through-hole (29) have all been seted up in threaded sleeve (6) and screw rod (7), through-hole (29) correspond each other and run through the grafting with inserted bar (9), inserted bar (9) run through the grafting with casing (4) lateral wall.

4. The 5G communication unmanned vehicle safety monitoring device of claim 1, wherein: four metal elastic sheets (8) are uniformly arranged on the periphery of the shell (4), each metal elastic sheet (8) is of a bent structure, a motor (10) is arranged in the middle of the shell (4), and two electric push rods (11) are symmetrically distributed on two sides of the motor (10).

5. The 5G communication unmanned vehicle safety monitoring device of claim 1, wherein: electric putter (11) and drive shaft (18) all with automobile body (1) and mounting base (2) through connection, electric putter (11) top is connected with portable plate (21) of circle annular structure, portable plate (21) top edge gomphosis has a plurality of ball (23), ball (23) contact has detection instrument (5) bottom surface.

6. The 5G communication unmanned vehicle safety monitoring device of claim 1, wherein: the lantern plate (19) and the limiting plate (20) are both of a circular ring structure, the cross section of the limiting plate (20) is of an L-shaped structure, a plurality of screws (22) are evenly arranged on the side wall of the lantern plate (19), and a movable plate (21) is arranged between the limiting plate (20) and the detecting instrument (5).

7. The 5G communication unmanned vehicle safety monitoring device of claim 1, wherein: the connecting seat (3) is attached to the top surface of the mounting base (2), a gasket (24) is fixedly embedded in the edge of the bottom of the connecting seat (3), and the gasket (24) is in contact with the top surface of the mounting base (2).

8. The 5G communication unmanned vehicle safety monitoring device of claim 1, wherein: the number of the mounting bases (2) is two, the two mounting bases (2) are respectively located on two sides of the top of the vehicle body (1), and four threaded sleeves (6) are arranged at the bottom of each mounting base (2).

9. The 5G communication unmanned vehicle safety monitoring device of claim 1, wherein: the detection instrument is characterized in that a data receiving module (13), a data processing module (14), a 5G communication module (15) and a single chip microcomputer (16) are fixedly connected inside the detection instrument (5), and the data receiving module (13), the data processing module (14), the 5G communication module (15) and the single chip microcomputer (16) are electrically connected with one another.

10. The 5G communication unmanned vehicle safety monitoring device of claim 1, wherein: appearance (28), panorama camera appearance (12), fixed camera appearance (25) and radar sensor (26) mutual electric connection are made a video recording behind plantago camera appearance (27), the car, camera appearance (28), panorama camera appearance (12), fixed camera appearance (25) and radar sensor (26) are all with data receiving module (13) electric connection behind plantago camera appearance (27), the car, the quantity of fixed camera appearance (25) and radar sensor (26) all is six, and every three fixed camera appearance (25) and radar sensor (26) are located connecting seat (3) surface respectively.

Technical Field

The invention belongs to the technical field of automatic driving safety monitoring, and particularly relates to a safety monitoring device for a 5G communication unmanned vehicle.

Background

The unmanned vehicle is an intelligent vehicle which senses the surrounding environment of a vehicle body through an artificial intelligence algorithm or a program and realizes an automatic safe driving function on the premise of no manual intervention or little manual operation. The unmanned vehicle combines the dual characteristics of the robot and the automobile, not only has the intelligent advantage of the robot, but also embodies the typical wheel type structure of the automobile, and is also called a wheel type mobile robot. The unmanned vehicle can dynamically identify navigation paths, obstacles and road signs by means of various sensing technologies such as laser radar and global positioning system and rapid calculation processing equipment, the monitoring technology and the industrialization process are rapidly promoted, accurate position information and road condition information are difficult to obtain due to the complexity of the actual traffic environment, and the safety of automatic driving of the unmanned vehicle is still to be improved.

The rapid development of the 5G communication technology provides powerful technical support for the functions of realizing path planning, position positioning, automatic obstacle avoidance and the like of the automatic driving of the unmanned vehicle. For traditional unmanned vehicle device, because the vehicle is difficult for carrying out communication device fixed at the in-process that traveles, long-time the use also leads to the device wearing and tearing ageing easily, is difficult for dismantling and installing at the maintenance in-process, has influenced monitoring device's life, also brings the potential safety hazard for unmanned vehicle's stability is traveled, and in the parking passenger-carrying process, be difficult to effectively realize the monitoring around the vehicle, influence automatic driving's security. Therefore, in order to solve the problems, the 5G communication unmanned vehicle safety monitoring device is provided based on the advantages of low time delay, low power consumption, high capacity, wide coverage and the like of the 5G communication.

Disclosure of Invention

A safety monitoring device for a 5G communication unmanned vehicle comprises a mounting base, a fixing mechanism, a lifting mechanism and a communication mechanism, wherein the mounting base is positioned at the top of a vehicle body;

the fixing mechanism comprises a connecting seat, a shell and a detector, the connecting seat is attached to the surface of the mounting base, the interior of the connecting seat is movably sleeved with the detector, the bottom of the connecting seat is fixedly connected with a threaded sleeve, the threaded sleeve extends into the shell, the interior of the threaded sleeve is in threaded connection with a screw rod, the bottom of the shell is inserted into the screw rod in a penetrating mode, the side wall of the shell is fixedly connected with a metal elastic sheet, and the metal elastic sheet is in contact with an insertion rod;

the lifting mechanism comprises a shell, a motor, an electric push rod and a detector, wherein the interior of the shell is respectively and fixedly connected with the motor and the electric push rod, the end part of the electric push rod is fixedly connected with a movable plate, the movable plate is rotatably connected with the interior of a limiting plate, the limiting plate is movably sleeved with the interior of a sleeve plate, the limiting plate is fixedly connected with the sleeve plate through a screw, the output end of the motor is fixedly connected with a guide rod through a driving shaft, the guide rod is movably inserted into the interior of the detector, and the cross section of the guide rod is of a square structure;

communication mechanism includes detection instrument, panorama appearance, fixed appearance and the radar sensor of making a video recording, the panorama appearance of making a video recording is installed to detection instrument top lateral wall gomphosis, fixed appearance and the radar sensor of making a video recording all with connecting seat surface gomphosis installation, automobile body front end and rear end make a video recording appearance and the car back appearance fixed mounting of making a video recording respectively with the plantago.

Further, automobile body top inner wall is connected with the casing laminating, the casing corresponds each other with the mounting base, automobile body and mounting base all cup joint with the activity of threaded sleeve.

Furthermore, the threaded sleeve and the screw rod are provided with through holes, the through holes correspond to each other and penetrate through and are connected with the inserted bar, and the inserted bar penetrates through and is connected with the side wall of the shell.

Furthermore, four metal elastic sheets are uniformly arranged on the periphery of the shell, each metal elastic sheet is of a bent structure, a motor is arranged in the middle of the shell, and two electric push rods are symmetrically distributed on two sides of the motor.

Furthermore, electric putter and drive shaft all with automobile body and mounting base through connection, the electric putter top is connected with the fly leaf of circle annular structure, fly leaf top edge gomphosis has a plurality of ball, the ball contact has the detection instrument bottom surface.

Further, the lagging and the limiting plate are both of an annular structure, the cross section of the limiting plate is of an L-shaped structure, a plurality of screws are evenly arranged on the side wall of the lagging, and a movable plate is arranged between the limiting plate and the detecting instrument.

Furthermore, the connecting seat is attached to the top surface of the mounting base, a gasket is fixedly embedded in the edge of the bottom of the connecting seat, and the gasket is in contact with the top surface of the mounting base.

Furthermore, the number of the mounting bases is two, the two mounting bases are respectively positioned on two sides of the top of the vehicle body, and the bottom of each mounting base is provided with four threaded sleeves.

Furthermore, the inside fixedly connected with data receiving module, data processing module, 5G communication module and singlechip of detection instrument, data receiving module, data processing module, 5G communication module and singlechip are electric connection each other.

Further, appearance, panorama camera appearance, fixed camera appearance and the mutual electric connection of radar sensor are made a video recording behind appearance, the car of making a video recording appearance, panorama camera appearance, fixed camera appearance and radar sensor all with data receiving module electric connection behind the appearance of making a video recording, the car of making a video recording, fixed camera appearance and radar sensor's quantity all is six, and every three fixed camera appearance and radar sensor are located the connecting seat surface respectively.

The invention has the beneficial effects that: the monitoring device of the 5G communication unmanned vehicle is convenient to mount and fix, and improves the stability and driving safety of the device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic diagram of an interior front view structure of a connecting seat according to an embodiment of the invention;

FIG. 3 is a schematic view of a vehicle body layout according to an embodiment of the present invention;

FIG. 4 is a schematic top view of a connecting seat according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of the structure of FIG. 2 according to an embodiment of the present invention;

fig. 6 is a schematic diagram of the working principle of an embodiment of the present invention.

In the figure: 1. the automobile body, 2, the mounting base, 3, the connecting seat, 4, the casing, 5, the detection instrument, 6, the thread bush, 7, the screw rod, 8, metal shell fragment, 9, the inserted bar, 10, the motor, 11, electric putter, 12, the panorama appearance, 13, data receiving module, 14, data processing module, 15, 5G communication module, 16, the singlechip, 17, the guide arm, 18, the drive shaft, 19, the lagging, 20, the limiting plate, 21, the fly leaf, 22, the screw, 23, the ball, 24, the packing ring, 25, fixed camera appearance, 26, radar sensor, 27, plantago camera appearance, 28, the camera appearance behind the car, 29, the through-hole, 30, the sealing washer.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that such terms are interchangeable under appropriate circumstances in order to describe embodiments of the invention. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, technique, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, technique, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate that the orientation or positional relationship is based on that shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be designed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be mechanically connected or electrically connected; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-6, a 5G communication safety monitoring device for an unmanned vehicle includes a mounting base 2 located at the top of a vehicle body 1, a fixing mechanism, a lifting mechanism and a communication mechanism;

the fixing mechanism comprises a connecting seat 3, a shell 4 and a detector 5, the connecting seat 3 is connected with the surface of the mounting base 2 in a fitting manner, the interior of the connecting seat 3 is movably sleeved with the detector 5, the bottom of the connecting seat 3 is fixedly connected with a threaded sleeve 6, the threaded sleeve 6 extends into the shell 4, the interior of the threaded sleeve 6 is in threaded connection with a screw 7, the bottom of the shell 4 is inserted into the screw 7 in a penetrating manner, the side wall of the shell 4 is fixedly connected with a metal elastic sheet 8, and the metal elastic sheet 8 is in contact with an insertion rod 9;

the lifting mechanism comprises a shell 4, a motor 10, an electric push rod 11 and a detector 5, the interior of the shell 4 is respectively and fixedly connected with the motor 10 and the electric push rod 11, the end part of the electric push rod 11 is fixedly connected with a movable plate 21, the movable plate 21 is rotatably connected with the interior of a limiting plate 20, the limiting plate 20 is movably sleeved with the interior of a sleeve plate 19, the limiting plate 20 is fixedly connected with the sleeve plate 19 through a screw 22, the output end of the motor 10 is fixedly connected with a guide rod 17 through a driving shaft 18, the guide rod 17 is movably inserted into the interior of the detector 5, and the section of the guide rod 17 is of a square structure;

communication mechanism includes detection instrument 5, panorama appearance of making a video recording 12, fixed appearance 25 and the radar sensor 26 of making a video recording, panorama appearance 12 of making a video recording is installed to 5 top lateral wall gomphosis of detection instrument, fixed appearance 25 and the radar sensor 26 of making a video recording all with connecting seat 3 surface gomphosis installation, 1 front end of automobile body and rear end respectively with the plantago appearance 27 and the car back appearance 28 fixed mounting that makes a video recording.

The inner wall of the top of the vehicle body 1 is connected with a shell 4 in an attaching mode, the shell 4 corresponds to the mounting base 2, and the vehicle body 1 and the mounting base 2 are movably sleeved with a threaded sleeve 6; the threaded sleeve 6 and the screw 7 are both provided with through holes 29, the through holes 29 correspond to each other and are in through insertion connection with the insertion rod 9, and the insertion rod 9 is in through insertion connection with the side wall of the shell 4; four metal elastic sheets 8 are uniformly arranged around the shell 4, each metal elastic sheet 8 is of a bent structure, a motor 10 is arranged in the middle of the shell 4, and two electric push rods 11 are symmetrically distributed on two sides of the motor 10; the electric push rod 11 and the driving shaft 18 are connected with the vehicle body 1 and the mounting base 2 in a penetrating manner, the top of the electric push rod 11 is connected with a movable plate 21 with a circular ring structure, a plurality of balls 23 are embedded in the edge of the top of the movable plate 21, and the balls 23 are in contact with the bottom surface of the detector 5; the sleeve plate 19 and the limiting plate 20 are both of circular structures, the section of the limiting plate 20 is of an L-shaped structure, a plurality of screws 22 are uniformly arranged on the side wall of the sleeve plate 19, and a movable plate 21 is arranged between the limiting plate 20 and the detector 5; the connecting seat 3 is attached to the top surface of the mounting base 2, a gasket 24 is fixedly embedded at the edge of the bottom of the connecting seat 3, and the gasket 24 is in contact with the top surface of the mounting base 2; the number of the mounting bases 2 is two, the two mounting bases 2 are respectively positioned on two sides of the top of the vehicle body 1, and the bottom of each mounting base 2 is provided with four threaded sleeves 6; a data receiving module 13, a data processing module 14, a 5G communication module 15 and a single chip microcomputer 16 are fixedly connected inside the detecting instrument 5, and the data receiving module 13, the data processing module 14, the 5G communication module 15 and the single chip microcomputer 16 are electrically connected with each other; appearance 28, panorama camera appearance 12, the fixed mutual electric connection of appearance 25 and radar sensor 26 of making a video recording behind the plantago camera 27, the car, appearance 28, panorama camera appearance 12, the fixed camera appearance 25 and radar sensor 26 of making a video recording all with data receiving module 13 electric connection behind the plantago camera 27, the car, the quantity of fixed camera appearance 25 and radar sensor 26 all is six, and every three fixed camera appearance 25 and radar sensor 26 of making a video recording are located 3 surfaces of connecting seat respectively.

In the use process of the unmanned vehicle, the electrical components are externally connected and communicated with a power supply and a control switch; in the installation process, the connecting seat 3 is attached to the mounting base 2, the threaded sleeve 6 is inserted into the mounting base 2 and the top of the vehicle body 1, the shell 4 is attached to the roof from the inside of the vehicle body 1, the screw 7 is screwed, the screw 7 penetrates through the bottom of the shell 4 and enters the threaded sleeve 6, after the connection is completed, the threaded sleeve 6 and the through hole 29 in the screw 7 correspond to each other, at the moment, the elastic piece 8 pushes the insertion rod 9 to be inserted into the through hole 29 to limit the connection position, the sleeve plate 19 is sleeved on the surface of the limiting plate 20, and the sleeve plate 19 and the limiting plate 20 are fixed through the screw 22; in the driving process of the unmanned vehicle, the front and two sides of the vehicle body 1 are monitored by the fixed camera 25, multi-directional monitoring is realized by matching with the vehicle front camera 27, the front vehicle and an obstacle can be automatically monitored in the driving process, and moving objects at the rear and two sides of the vehicle body 1 are monitored by the fixed camera 25 and the vehicle rear camera 28, so that the driving safety of the unmanned vehicle is ensured; in the parking process, the movable plate 21 is driven to move through the extension of the electric push rod 11, the detecting instrument 5 is driven to extend out, the driving shaft 18 and the guide rod 17 are driven to rotate simultaneously through the motor 10, the guide rod 17 drives the detecting instrument 5 to rotate, the surrounding environment of the vehicle body 1 is monitored through the panoramic camera 12, the getting-on condition and the surrounding condition of the vehicle body 1 can be judged in time, the safety of an unmanned vehicle body and drivers and passengers is ensured, the fixed camera 25, the radar sensor 26, the vehicle front camera 27, the vehicle rear camera 28 and the panoramic camera 12 transmit shot pictures to the data receiving module 13, data optimization and conversion are carried out through the data processing module 14, signals are received through the 5G communication module 15, dynamic data are transmitted at high speed, and then the running state of the whole vehicle body is controlled through the adjusting single chip microcomputer 16; when the use of the unmanned vehicle is finished, the movable plate 21 is driven by the electric push rod 11 to move, the movable plate 21 drives the detecting instrument 5 to return to the inside of the connecting seat 3, the automatic sealing between the connecting seat 3 and the detecting instrument 5 is realized through the sealing ring 30, the waterproof performance of the unmanned vehicle monitoring system is enhanced, and the service life of the monitoring system is prolonged.

The invention has the advantages that:

1. the detachable connecting seat and the shell can improve the safety and stability of the 5G communication device, the detachable connecting seat and the shell are convenient to detach and reassemble during maintenance, the shell and the connecting seat can be reinforced through the matching of the threaded sleeve and the screw rod, the stability after connection can be improved due to the arrangement of the inserted rod, and the problem of connection looseness possibly caused by long-time use is avoided;

2. the automatic telescopic panoramic detector can monitor the surrounding environment of the vehicle body without dead angles, monitor the surrounding environment of the vehicle body in the parking passenger carrying process, effectively prevent accidents from happening, and realize the safe parking passenger carrying function of unmanned vehicles;

3. the invention is provided with the fixed camera and the radar sensor, can carry out omnibearing monitoring on the surrounding environment of the vehicle body, improves the dynamic monitoring accuracy of front and rear vehicles and obstacles by matching with the vehicle front camera and the vehicle rear camera, monitors the driving state of the vehicle in real time through the 5G communication module and the singlechip, and improves the safety and the reliability of the unmanned vehicle in the driving process.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

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