Disclosure of Invention
The invention aims to provide a laser sterilization cavity so as to solve the problems and greatly improve the sterilization effect on fluid.
In order to achieve the above object, the present invention provides a laser sterilization chamber, including an inlet, an outlet and a sterilization chamber located between the inlet and the outlet, wherein a laser incident channel of laser emitted by a laser emitter on the sterilization chamber enters the sterilization chamber, the sterilization chamber includes at least 2 layers of laser reflection chambers, a first laser reflection chamber includes a second mirror disposed opposite to the laser incident channel and a first mirror disposed opposite to the second mirror, the second laser reflection chamber includes a third mirror and a fourth mirror disposed opposite to each other, a first laser and a fluid channel are further included between the at least 2 layers of laser reflection chambers, and laser and fluid are transmitted from the first laser reflection chamber to the second laser reflection chamber through the first laser and the fluid channel.
In one embodiment, the second laser reflection cavity is provided with a first laser angle adjusting mirror, and the first laser angle adjusting mirror is used for receiving the laser reflected by the first reflecting mirror and adjusting the transmission direction of the laser.
In one embodiment, the laser device further comprises a second laser angle adjusting mirror, wherein the second laser angle adjusting mirror is used for receiving the laser light reflected by the fourth reflecting mirror and adjusting the transmission direction of the laser light.
In one embodiment, the laser sterilization cavity further comprises a third laser reflection cavity, the third laser reflection cavity comprises a fifth reflecting mirror and a sixth reflecting mirror which are arranged in an opposite mode, a second laser and fluid channel is arranged between the second laser reflection cavity and the third laser reflection cavity, and laser and fluid are transmitted from the second laser reflection cavity to the third laser reflection cavity through the second laser and fluid channel.
In one embodiment, the third laser reflecting cavity is provided with a third laser angle adjusting mirror, and the third laser angle adjusting mirror is used for receiving the laser reflected by the third laser reflecting mirror and reflecting the laser to the fifth reflecting mirror.
In one embodiment, the laser sterilization cavity further comprises a fourth laser angle adjusting mirror, wherein the fourth laser angle adjusting mirror is used for receiving the laser reflected by the fifth reflecting mirror and adjusting the transmission direction of the laser.
In one embodiment, the first angle-adjusting mirror and/or the second angle-adjusting mirror is a beam splitter.
In one embodiment, a laser sterilization chamber further includes a cleaning window removably coupled to the sterilization chamber.
In one embodiment, the cleaning window is detachably connected to the side wall of the sterilization chamber, and comprises a gasket, a cover plate and a locking mechanism.
In one embodiment, the cleaning window is hinged to a side wall of the sterilization chamber.
In one embodiment, the fluid is air.
In one embodiment, the invention further provides a high-efficiency laser sterilization device which is used for a water sterilization system to perform laser irradiation sterilization on water flowing into a sterilization chamber from an inlet, wherein the inlet is a pipeline, and the pipeline is detachably connected with an external fluid pipeline through a quick-fit joint.
In one embodiment, the quick connector of the high-efficiency laser sterilization device is a clamp.
In one embodiment, the quick connector of the high-efficiency laser sterilization device comprises 2 encircling sheets, wherein the first encircling sheet and the second encircling sheet are of detachable structures, the first encircling sheet and the second encircling sheet are assembled together to encircle an external fluid pipeline, the second encircling sheet comprises a hollow runner, and after the second encircling sheet is connected with an inlet of a sterilization cavity, fluid in the external fluid pipeline flows into the sterilization chamber from the runner.
In one embodiment, the high-efficiency laser sterilization device further comprises a flow meter, an electromagnetic valve and a control system, wherein the control system is electrically connected with the laser emitter, the flow meter and the electromagnetic valve, and the control system controls the electromagnetic valve to be opened or closed according to the read on/off data of the laser emitter; the flowmeter is used for monitoring the throughput of the fluid and feeding back to a control system, and the control system controls the opening or closing of the electromagnetic valve and/or the laser according to the value fed back by the flowmeter.
In one embodiment, the fluid of a high efficiency laser sterilization device is water.
In one embodiment, the invention further provides a high-efficiency laser sterilization system for indoor air sterilization or in-vehicle air sterilization, which comprises the laser sterilization cavity and a fan, wherein the fan is used for introducing air in the indoor or in-vehicle into the sterilization chamber from an inlet to obtain laser sterilization, and the sterilized air is discharged from an outlet.
The beneficial effects are that:
compared with the prior art, the laser sterilization cavity has a simple and compact structure, at least 2 layers of sterilization chambers are formed through the optimized sterilization chamber structure, only one laser source is needed, laser can be repeatedly utilized in the multilayer laser reflection cavity, fluid is repeatedly killed through the multilayer laser reflection cavity of the sterilization cavity, the laser is extremely utilized, the utilization efficiency of the laser is improved, and the sterilization effect of the fluid is improved.
Description of the embodiments
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the present embodiment provides a laser sterilization chamber, which includes an inlet 1, an outlet 2, and a sterilization chamber 3 located between the inlet 1 and the outlet 2, the sterilization chamber 3 includes at least 2 layers of laser reflection chambers, the first laser reflection chamber 31 includes a laser incidence channel 310 and a first mirror 311 and a second mirror 312 disposed opposite to each other, the second laser reflection chamber 32 includes a third mirror 321 and a fourth mirror 322 disposed opposite to each other, a first laser and a fluid channel 4 are further included between the at least 2 layers of laser reflection chambers, and laser and fluid are transmitted from the first laser reflection chamber 31 to the second laser reflection chamber 32 through the first laser and the fluid channel 4. The laser emitted from the laser emitter 30 enters the first laser reflection cavity 31 from the laser incident channel 310 at a certain inclination angle, the laser is firstly irradiated to the second reflecting mirror 312, and then the laser is reflected back and forth between the second reflecting mirror 312 and the first reflecting mirror 311, so that the fluid flowing through the first laser reflection cavity 31 is irradiated by the laser for a plurality of times, and harmful substances such as viruses, bacteria and the like contained in the circulating fluid are killed. The laser light is reflected back and forth between the second mirror 312 and the first mirror 311, the second mirror 312 being longer than the first mirror 311 on the inlet 1 side so that the second mirror 312 receives the laser light emitted from the laser emitter; the first mirror 311 is longer than the second mirror 312 at the opposite side of the inlet 1, after the first mirror 311 receives the last laser beam reflected by the second mirror 312, the last received laser beam is reflected to be irradiated from the first laser beam and the fluid channel 4 and enter the second laser reflection cavity 32, after the laser beam enters the second laser reflection cavity 32, the laser beam is firstly irradiated onto the fourth mirror 322, and is reflected back and forth between the third mirror 321 and the fourth mirror 322 and then between the fourth mirror 322 and the third mirror 321, so that the fluid flowing through the second laser reflection cavity 32 is subjected to irradiation of the laser beam for multiple times to kill harmful substances such as viruses, bacteria and the like contained in the circulating fluid, and then the killed fluid flows out of the sterilization cavity from the outlet 2. Fluid, which is water, flows out of the outlet 2 after being sterilized by the dual laser beam network of the first laser reflection cavity 31 and the second laser reflection cavity 32, passes through the first laser reflection cavity 31 and the fluid channel 4 and flows into the second laser reflection cavity 32 from the inlet 1 sterilization chamber 3. The first reflecting mirror 311 is mounted on the first cavity wall 91 of the first laser reflecting cavity 31, the second reflecting mirror 312 is mounted on one side of the first partition 92, and after the fluid enters from the inlet 1, the fluid is restricted by the first cavity wall 91 and the first partition 92 from flowing into the second laser reflecting cavity 32 from the first laser and the fluid channel 4 after passing through the first laser reflecting cavity 31. The third reflecting mirror 321 is mounted on the other side of the first partition 92, the fourth reflecting mirror 322 is mounted on one side of the second partition 93, and after the fluid flows in from the first laser and fluid channel 4, the fluid is restricted by the first partition 92 and the second partition 93 from flowing into the third laser reflecting cavity 33 from the second laser and fluid channel 5 or flowing out of the sterilizing chamber 3 from the outlet 2 after passing through the second laser reflecting cavity 32. The laser transmitter 30 may be disposed outside the sterilization chamber 3 or may be disposed inside the sterilization chamber 3.
As shown in fig. 2 to 4, in one embodiment, the second laser reflection cavity 32 is provided with a first laser angle adjusting mirror 323, and the first laser angle adjusting mirror 323 is configured to receive the laser light reflected by the first mirror 311 and entering the second laser reflection cavity 32, and adjust the transmission direction of the laser light. The first laser angle adjusting mirror 323 is used for adjusting the angle of incidence of the reflected laser beam to the third reflecting mirror 321, thereby adjusting the degree of the density of the laser beam net in the second laser reflecting cavity 32. The first laser angle adjusting mirror 323 and the second interlayer 93 form an included angle alpha, and the angle alpha is more than or equal to 1 degree and less than or equal to 20 degrees, and is preferably equal to the angle alpha: 1 °, 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, 8 °, 9 °, 10 °, or 11 °, 12 °, 13 °, 14 °, 15 °, etc. It is understood that α may be an angle between the first laser angle adjusting mirror 323 and an extension line of the fourth reflecting mirror 322.
In one embodiment, the first laser angle adjusting mirror 323 is a beam splitter, and is configured to receive the laser light reflected by the first reflecting mirror 311 and enter the second laser reflecting cavity 32 and adjust the transmission direction of the laser light, specifically, the beam splitter splits the received laser light into two beams, one beam of laser light after splitting is reflected by the beam splitter to the first reflecting mirror 311, the other beam of laser light is reflected by the beam splitter to the third reflecting mirror 321, and in this structure, the beam splitter reflects one beam of laser light to enter the first laser reflecting cavity 31 again and back and forth between the first reflecting mirror 311 and the second reflecting mirror 312, so that the density of the laser beam network between the first reflecting mirror 311 and the second reflecting mirror 312 is increased, the number of times of laser irradiation is increased, and the killing effect is better; the other beam of laser light split by the beam splitter irradiates the third reflecting mirror 321, and then the laser light is reflected back and forth between the third reflecting mirror 321 and the fourth reflecting mirror 322 to form a laser beam net in the second laser reflecting cavity 32, so that the fluid flowing into the second laser reflecting cavity 32 is killed.
In one embodiment, a laser sterilization chamber further includes a second laser angle adjustment mirror 324, where the second laser angle adjustment mirror 324 is configured to receive the laser light reflected by the fourth mirror 322 and adjust a transmission direction of the laser light. The second laser angle adjusting mirror 324 is used to adjust the angle of incidence of the reflected laser beam to the fourth reflecting mirror 322, thereby adjusting the degree of the density of the laser beam net in the second laser reflecting cavity 32. The second laser angle adjusting mirror 324 forms an included angle beta with the first interlayer 92, and beta is more than or equal to 1 degree and less than or equal to 20 degrees, preferably beta is equal to: 1 °, 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, 8 °, 9 °, 10 °, or 11 °, 12 °, 13 °, 14 °, 15 °, etc. It is understood that β may be the angle between the extension line of the second laser angle adjusting mirror 324 and the third mirror 321.
In one embodiment, a laser sterilization chamber further includes a third laser reflection chamber 33, the third laser reflection chamber including a fifth mirror 331 and a sixth mirror 332 disposed opposite to each other, the second laser reflection chamber 32 and the third laser reflection chamber 33 including a second laser and fluid channel 5 therebetween, and the laser and fluid being transmitted from the second laser reflection chamber 32 to the third laser reflection chamber 33 through the second laser and fluid channel 5. The fifth reflecting mirror 331 is mounted on the other side of the second interlayer 93, the sixth reflecting mirror 332 is mounted on the second cavity wall 94, and after the fluid enters from the second laser and fluid channel 5, the fluid is restricted by the second interlayer 93 and the second cavity wall 94 to flow out of the sterilization cavity from the outlet 2 after passing through the third laser reflecting cavity 33.
In one embodiment, the second laser angle adjusting mirror 324 is a beam splitter, and is configured to receive the laser light reflected by the fourth reflecting mirror 322 and adjust the transmission direction of the laser light, specifically, the beam splitter splits the received laser light into two beams, one beam of split laser light is reflected by the beam splitter to the fourth reflecting mirror 322, and the other beam of split laser light is reflected by the beam splitter to the sixth reflecting mirror 332. In the structure, the beam splitter reflects a beam of laser to enter the second laser reflecting cavity 32 again and is reflected back and forth between the third reflecting mirror 321 and the fourth reflecting mirror 322, so that the density of a laser beam net between the third reflecting mirror 321 and the fourth reflecting mirror 322 is increased, the number of times of laser irradiation is more, and the killing effect is better; the other beam of laser light split by the beam splitter irradiates the sixth mirror 332, and then the laser light is reflected back and forth between the fifth mirror 331 and the sixth mirror 332 to form a laser beam net in the third laser reflection cavity 33, so that the fluid flowing into the third laser reflection cavity 33 is killed. The fluid passes through the first laser reflection cavity 31 from the inlet 1 sterilization chamber 3, then flows into the second laser reflection cavity 32 through the first laser and fluid channel 4, passes through the second laser reflection cavity 32, then flows into the third laser reflection cavity 33 from the second laser and fluid channel 5, and flows out from the outlet 2 after being sterilized by the triple laser beam net, wherein the fluid is air.
In one embodiment, the third laser reflecting cavity 33 is provided with a third laser angle adjusting mirror 333, and the third laser angle adjusting mirror 333 is configured to receive the laser light reflected by the third reflecting mirror 321 or the second laser angle adjusting mirror 324 and adjust the angle of incidence of the received laser light on the fifth reflecting mirror 331, so as to adjust the degree of the density of the laser beam net in the third laser reflecting cavity 33. The third laser angle adjusting mirror 333 forms an angle γ with the second cavity wall 94, where γ is greater than or equal to 1 ° and less than or equal to 20 °, and preferably γ is equal to 1 °, 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, 8 °, 9 °, 10 ° or 11 °, 12 °, 13 °, 14 °, 15 °, and the like. It is understood that γ may be an angle between the third laser angle adjusting mirror 333 and the extension line of the sixth mirror 332.
In one embodiment, the third laser angle adjusting mirror 333 is a spectroscope, and the light splitting principle and function are the same as above, and will not be described again.
In one embodiment, a laser sterilization chamber further includes a fourth laser angle adjusting mirror 334, where the fourth laser angle adjusting mirror 334 is configured to receive the laser light reflected by the fifth reflecting mirror 331 and adjust a transmission direction of the laser light. The fourth laser angle adjusting mirror 334 is configured to receive the laser light reflected by the fifth reflecting mirror 331 and adjust an angle of incidence of the received laser light on the fifth reflecting mirror 331, so that the laser light reflected by the fifth reflecting mirror 331 to the fourth laser angle adjusting mirror 334 is reflected back and forth on the fifth reflecting mirror 331 and between the fifth reflecting mirror 331 and the sixth reflecting mirror 332, and a layer of back and forth reflected laser beam net is added in the third laser reflecting cavity 33, so as to increase a density of the laser beam net in the third laser reflecting cavity 33, and the passing fluid is more effectively killed, and the fluid is a liquid. The fourth laser angle adjusting mirror 334 forms an angle delta with the second cavity wall 94, wherein delta is greater than or equal to 1 DEG and less than or equal to 20 deg. Preferably δ is equal to: 1 °, 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, 8 °, 9 °, 10 °, or 11 °, 12 °, 13 °, 14 °, 15 °, etc. It will be appreciated that γ may be the angle between the fourth laser angle adjustment mirror 334 and the extension of the sixth mirror 332.
In one embodiment, the laser light has a wavelength in the range of 210nm to 330nm. The laser with the wavelength has good sterilization effect.
As shown in fig. 5-6, in one embodiment, a laser sterilization chamber further includes a cleaning window 6, the cleaning window 6 being removably connected to the sterilization chamber.
In one embodiment, as shown in fig. 5, the side wall of the cleaning window 6 detachably connected to the non-installed reflector of the sterilization chamber 3 includes a gasket 61, a cover plate 62 and a locking mechanism 63, the locking mechanism is a screw, after the sterilization chamber 3 is used for a long time, the laser reflector will adhere to dirt, and the cleaning window 6 of the present invention is easy to detach and convenient to clean the reflector, and needs to be cleaned regularly to ensure a good reflection effect.
As shown in fig. 6: in one embodiment, the cleaning window 6 is hinged to the side wall of the sterilization chamber 3, and comprises a gasket 61, a cover plate 62 and a locking mechanism 63, unlike the previous embodiment, the locking mechanism 63 is two connection protrusions matched with each other, when the cleaning window 6 is closed, the two connection protrusions are overlapped, the two connection protrusions are fixed by screws, and thus the closing of the cleaning window is completed, and when the mirror needs to be cleaned, the cleaning window 6 can be conveniently opened.
In one embodiment, a high-efficiency laser sterilization device is provided, which is used for a water sterilization system to perform laser irradiation sterilization on water flowing into a sterilization chamber 3 from an inlet 1, wherein the inlet 1 is a pipeline, the pipeline is detachably connected with an external fluid pipeline 7 through a quick-mounting joint, and the external fluid pipeline is a water pipe.
In one embodiment, the quick connector 8 of the high-efficiency laser sterilization device is a clamp. After the inlet 1 is aligned with the water pipe to be connected, the inlet 1 and the water pipe to be connected are locked by a clamp, so that the detachable connection is completed.
As shown in fig. 7 to 8, in one embodiment, the quick connector 8 of the high-efficiency laser sterilization device includes 2 encircling pieces, the first encircling piece 81 and the second encircling piece 82 are of a detachable structure, and are assembled together to encircle the external fluid pipe 7, the second encircling piece 82 includes a hollow runner 821, a gasket 823 is further included between the second encircling piece 82 and the external fluid pipe 7, the first encircling piece 81 and the second encircling piece 82 are detachably connected through a screw 824 and a nut 825, after the second encircling piece 82 is connected with the inlet 1 of the sterilization cavity, fluid in the external fluid pipe 7 flows into the sterilization chamber from the runner 821, and the external fluid pipe 7 is a water pipe.
In one embodiment, the fluid is water.
Principle of: water flows into the sterilization chamber 3 from the inlet 1, laser enters the first laser reflection cavity 31 from the laser incidence channel 310 and is reflected back and forth between the second reflection mirror 312 and the first reflection mirror 311 to form a first layer of laser beam net, water flows through the first laser reflection cavity 31 to obtain first laser irradiation sterilization of the first laser beam net, water and laser are both transmitted from the first laser reflection cavity 31 to the second laser reflection cavity 32 from the first laser reflection cavity 4 and are reflected back and forth in the third reflection mirror 321 and the fourth reflection mirror 322 to form a second layer of laser beam net, water passes through the second laser reflection cavity 32 to obtain second laser irradiation sterilization of the second laser beam net, and then water and laser are again sterilized from the second laser and the fluid channel 5 to obtain third laser irradiation sterilization, and the principle is the same and is not repeated here.
As shown in fig. 9, in one embodiment, a high-efficiency laser sterilization apparatus further includes a flow meter 102, a solenoid valve 101, and a control system electrically connected to the laser emitter 30, the flow meter 102, and the solenoid valve 101, the control system reading on/off data of the laser emitter 30, and controlling the solenoid valve to be closed when the laser emitter 30 is in a closed state, the fluid no longer entering the sterilization apparatus; the flow meter 102 is used for monitoring the throughput of the fluid and feeding back to the control system, the control system controls the opening or closing of the electromagnetic valve 101 according to the value fed back by the flow meter 102, and when the value of the flow rate fed back by the flow meter 102 to the control system is lower than a preset minimum threshold value or higher than a maximum threshold value, the control system controls the electromagnetic valve 101 and the laser emitter 30 to be closed; the solenoid valve 101 and the laser transmitter 30 are controlled to open on the contrary. The fluid is water.
In one embodiment, the invention also provides a high-efficiency laser sterilization system for sterilizing indoor air, which comprises the laser sterilization cavity and a fan (not shown in the figure), wherein the fan is used for introducing indoor air into the sterilization chamber 3 from the inlet 1 to obtain laser sterilization, and the sterilized air is discharged from the outlet 2. Can be placed at any indoor position to circularly disinfect indoor air. The fan can be arranged in the laser sterilization cavity; the high-efficiency laser sterilization system can also be arranged outside a laser sterilization cavity and communicated with a sterilization chamber, and air is purified by the high-efficiency laser sterilization system, so that the safety of indoor personnel is ensured.
In one embodiment, the invention also provides a high-efficiency laser sterilization system for sterilizing air in a vehicle, which comprises the laser sterilization cavity and a fan (not shown in the figure), wherein the fan is used for introducing the air in the vehicle into the sterilization chamber 3 from the inlet 1 to obtain laser sterilization, and the sterilized air is discharged from the outlet 2. Can be placed at any position of an instrument desk, a handrail box or a rear window sill of an automobile to circularly disinfect the air in the automobile. The fan can be arranged in the laser sterilization cavity; the laser sterilization chamber can also be arranged outside the laser sterilization chamber and communicated with the sterilization chamber. The inside of the automobile is a relatively airtight space, air sterilization needs to be carried out on the inside space, and air breathed by drivers and passengers in the inside space is sterilized, so that the safety of the drivers and the passengers is ensured.
It will be appreciated that the laser source according to the present invention is only one basic arrangement taking into account the maximization of the laser utilization, and may be arranged as a plurality of laser sources according to the requirements of use, i.e. comprising a plurality of laser emitters for irradiating laser light into the sterilization chamber from different positions. The three-layer laser reflection cavity is only an example, and is not limited to the number of laser reflection cavities, and a person skilled in the art can set a fourth layer, a fifth layer or even more laser reflection cavities on the basis of the technical scheme of the invention, and the scheme is simply modified on the basis of the technical scheme of the invention and belongs to the protection scope of the invention.
It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.