Anti-theft monitoring method, device, equipment and intelligent switch
Technical Field
The invention relates to the technical field of intelligent home, in particular to an anti-theft monitoring method, an anti-theft monitoring device, anti-theft monitoring equipment and an intelligent switch.
Background
The anti-theft problem of indoor places such as families, storehouses, office places, and business places is one of hot safety problems concerned by people, in order to avoid indoor theft and harm the personal and property safety of people, people usually install an anti-theft system indoors, but the existing anti-theft system is basically realized based on camera video monitoring, and is single in function and not intelligent enough.
Disclosure of Invention
In view of the above deficiencies of the prior art, it is necessary to provide an anti-theft monitoring method, device, equipment and intelligent switch to at least solve the technical problem of low intelligence degree of an indoor anti-theft system.
The invention provides an anti-theft monitoring device, which is used for carrying out anti-theft monitoring on a plurality of monitoring areas and comprises:
the human body activity monitoring module is arranged in each monitoring area and used for monitoring whether human body activity exists in the monitoring area;
at least one wireless communication module for receiving approved user identity information within the monitored area;
the processing unit is connected with the human body activity monitoring module and the wireless communication module and used for controlling the anti-theft monitoring device to enter an alarm state when the wireless communication module does not receive the identity information of the approved user and human body activity exists in the monitoring area.
Further, the processing unit is further configured to send alarm information through the wireless communication module when the anti-theft monitoring device enters an alarm state.
The wireless communication module is used for receiving the identity information of the approved user and judging whether human body activity exists in all the monitoring areas or not, the processing unit is further used for starting the timing unit and comparing the timing duration of the timing unit with a threshold value when the wireless communication module receives the identity information of the approved user and human body activity does not exist in all the monitoring areas, and if the timing duration is greater than or equal to the threshold value, the processing unit controls the anti-theft monitoring device to enter a defense deployment state.
Further, the processing unit is further configured to stop the timing unit when the anti-theft monitoring device enters a defense state.
Furthermore, the processing unit is also used for controlling the anti-theft monitoring device to enter an alarm state after the anti-theft monitoring device enters the defense deployment state and when human body activities exist in the monitoring area.
Further, the processing unit is further configured to acquire a final activity monitoring area of an authorized user when the anti-theft monitoring device enters a defense deployment state, and control the anti-theft monitoring device to enter an alarm state after the anti-theft monitoring device enters the defense deployment state and when human body activity exists in the monitoring area except for the final activity monitoring area of the authorized user.
Further, the wireless communication module is a bluetooth wireless communication module and/or a WiFi wireless communication module or a Zigbee wireless communication module.
The invention also provides an anti-theft monitoring method, which comprises the following steps:
monitoring whether human body activities exist in a plurality of monitoring areas;
receiving the identity information of approved users in each monitoring area;
and entering an alarm state when the identity information of the approved user is not received and human body activities exist in the monitoring area.
Further, the entering the alarm state includes: and sending alarm information.
Further, the method also comprises the following steps: and when the identity information of the approved user is received and no human body activity exists in all the monitoring areas, timing, comparing the timing duration with a threshold value, and entering a defense deployment state if the timing duration is greater than or equal to the threshold value.
Further, the entering into the defense state includes: and stopping timing.
Further, the method also comprises the following steps: and when the monitoring area has human body activity after entering the defense deploying state, entering an alarm state.
Further, the method also comprises the following steps: and when the terminal activity monitoring area of the approved user is in the defense deploying state, the terminal activity monitoring area of the approved user is obtained, and when human body activity exists in the monitoring area except the terminal activity monitoring area of the approved user after the terminal activity monitoring area of the approved user enters the defense deploying state, the terminal activity monitoring area enters the alarm state.
The invention also provides anti-theft monitoring equipment which comprises the anti-theft monitoring device.
The invention also provides an anti-theft monitoring device, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method described above.
The invention also provides an intelligent switch which is used for controlling the working state of one or more lamps and comprises the anti-theft monitoring device.
The invention also provides an intelligent switch for controlling the working state of one or more lamps, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method described above.
The invention has the beneficial effects that:
the anti-theft monitoring method, the anti-theft monitoring device, the anti-theft monitoring equipment and the intelligent switch provided by the embodiment of the invention can automatically identify whether the approved user is indoors or not, intelligently judge whether the approved user has a rest or not according to the indoor human body activity condition, further automatically change the operation state, send alarm information in time when someone invades to remind the approved user, avoid the loss of personal and property safety, and improve the intelligent degree of an anti-theft system.
Drawings
FIG. 1 is a schematic diagram of an application environment of the present invention;
FIG. 2 is a schematic view of an anti-theft monitoring device according to an embodiment of the present invention;
FIG. 3 is a schematic view of another anti-theft monitoring device provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of another anti-theft monitoring device provided in the embodiment of the present invention;
fig. 5 is a schematic diagram of an anti-theft management device according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of an anti-theft monitoring method according to an embodiment of the present invention;
FIG. 7 is a flow chart of another anti-theft monitoring method according to an embodiment of the present invention;
FIG. 8 is a flow chart of another anti-theft monitoring method according to an embodiment of the present invention;
fig. 9 is a flowchart illustrating an anti-theft management method according to an embodiment of the present invention;
FIG. 10 is a schematic view of an anti-theft monitoring device according to an embodiment of the present invention;
fig. 11 is a schematic diagram of an anti-theft management device according to an embodiment of the present invention;
fig. 12 is a schematic view of an anti-theft system according to an embodiment of the present invention.
Detailed Description
The following description is of some of the many possible embodiments of the invention and is intended to provide a basic understanding of the invention and is not intended to identify key or critical elements of the invention or to delineate the scope of the invention. It is easily understood that, according to the technical solution of the present invention, other alternative implementations may be suggested by those skilled in the art without changing the spirit of the present invention. Therefore, the following specific examples and the accompanying drawings are only illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
The invention will be further described with reference to the accompanying drawings in which:
in order to better understand the present invention, an application environment of the present invention is first illustrated, and an embodiment of the present invention provides an anti-theft monitoring method, apparatus, and device, where the apparatus is wholly or partially integrated in the device and operates the method, and the device may be an intelligent switch, an intelligent socket, or other intelligent home product; the embodiment of the invention also provides an anti-theft management method, an anti-theft management device and anti-theft management equipment, wherein the anti-theft management device is fully or partially integrated in the equipment and operates the method, and the equipment can be mobile electronic equipment such as a smart phone, a smart bracelet, a smart watch and the like; the anti-theft monitoring and management method, the device and the equipment are combined to realize an indoor anti-theft system for families, storehouses, office places, business places and the like, and carry out intelligent anti-theft on indoor environment.
For example, the anti-theft monitoring device and the equipment are disposed in a house 10 as shown in fig. 1 for monitoring the safety condition in the house 10, the house can be divided into a plurality of monitoring areas according to rooms, for example, a bedroom is a first monitoring area 101, a living room is a second monitoring area 102, a dining room is a third monitoring area 103, a kitchen is a fourth monitoring area 104, and a bathroom is a fifth monitoring area 105, and the anti-theft monitoring device and the equipment monitor the monitoring areas. It is understood that the house may be not only a home, but also a warehouse, an office, a business, etc., and may be divided into a plurality of monitoring areas according to functions, locations, etc.
As shown in fig. 2, an embodiment of the present invention provides an anti-theft monitoring device 20, where the anti-theft monitoring device 20 includes:
at least one human activity monitoring module 201, each of the monitoring regions is provided with one or more human activity monitoring modules 201, and the human activity monitoring modules 201 are used for monitoring whether human activities exist in the monitoring region where the human activity monitoring modules 201 are located.
In practical application, human activity can be the action such as the walking of people, the running, the accessible is integrated in the monitoring equipment of theftproof a plurality of human activity monitoring module line monitoring, human activity monitoring module can be one or more in the sensors such as microwave sensor, initiative infrared sensor, vibration sensor, sound sensor, carry out alone or combination monitoring, all be provided with at least one human activity monitoring module in every above-mentioned monitoring area, in case someone activity in the monitoring area, then the human activity monitoring module in this monitoring area is triggered. For example, in a house 10 as shown in fig. 1, a first human activity monitoring sensor is provided in a first monitoring area 101, a second human activity monitoring sensor is provided in a second monitoring area 102, a third human activity monitoring sensor is provided in a third monitoring area 103, a fourth human activity monitoring sensor is provided in a fourth monitoring area 104, a fifth human activity monitoring sensor is provided in a fifth monitoring area 105, and when a person moves or runs in the monitoring area, a human activity monitoring module in the monitoring area is triggered to determine that human activity exists in the monitoring area.
At least one wireless communication module 203, said wireless communication module 203 being configured to receive authorized user identity information in each of said monitored areas.
In practical application, the wireless communication module may be a bluetooth wireless communication module, a WiFi wireless communication module, an NFC communication module, an RFID communication module, a Zigbee communication module, a BLE-Mesh communication module, or the like. The approved user identity information is identity information sent by the anti-theft management equipment carried by the approved user, namely family members, in a wireless transmission mode. The anti-theft management device can be a smart phone, a smart watch, a smart bracelet and the like, and sends fingerprint information, sound information, facial feature information, login passwords, anti-theft management device pairing information, anti-theft management device identification information and the like of a user through wireless transmission modes such as Bluetooth, ibeacon, WiFi, NFC, RFID, Zigbee, BLE-Mesh and the like, so that the information for confirming the identity of the approved user can be confirmed.
At least one processing unit 202, the processing unit is connected to the human body activity monitoring module and the wireless communication module, and the processing unit 202 is configured to control the anti-theft monitoring device 20 to enter an alarm state when the wireless communication module 203 does not receive the authorized user identity information and human body activity exists in the monitored area.
If the identity information of the approved user is not received, the approved user is not in the house, namely no family member exists, and meanwhile, if the human body activity is monitored, the intrusion of a person is indicated, and at the moment, the anti-theft monitoring device enters an alarm state.
In practical application, the condition that the approved user identity information is not received comprises that the anti-theft monitoring management equipment does not exist in the monitoring area, the anti-theft management equipment does not send the approved user identity information, and the approved user information sent by the anti-theft management equipment is not matched with the pre-stored approved user information.
And if the received approved user identity information is that the anti-theft management equipment exists in the monitoring area and sends the approved user identity information, or the anti-theft equipment exists in the monitoring area and the approved user information sent by the anti-theft management equipment is matched with the pre-stored approved user information.
As shown in fig. 3, in an embodiment, the anti-theft monitoring device further includes at least one storage unit 204, the storage unit 204 is configured to store the pre-stored authorized user identity information, the processing unit is further configured to match the authorized user identity information with the pre-stored authorized user identity information, if the matching is not successful, the authorized user identity information is not received, and if the matching is successful, the authorized user identity information is received.
The processing unit 202 is further configured to generate alarm information when the anti-theft monitoring device enters an alarm state, and send the alarm information to the anti-theft management device and/or an external security system through the wireless communication module, for example, send the alarm information to a public security linkage security system through the wireless communication module, send the alarm information to a smart phone of a user in the form of a short message or a telephone through the wireless communication module, and notify the user in time, shorten the processing time, and avoid or reduce property loss of the user. Or, the processing unit 202 controls an external alarm device and/or other devices to alarm when the anti-theft monitoring device enters an alarm state, for example, controls an external buzzer and a flash lamp to buzz and flash, controls the electromagnetic lock of an electric door and an electric window to act, and controls a camera to record a video, so as to remind a user and actively drive an intruder. Or, in an embodiment, the anti-theft monitoring device further includes an alarm module, the alarm module is connected to the processing unit, and when the anti-theft monitoring device enters an alarm state, the processing unit controls the alarm module to send out alarm information, for example, the alarm module includes a buzzer, a flash lamp, and the like, and when the anti-theft monitoring device enters the alarm state, the alarm module can send out sound and flash alarm information.
In an embodiment, the processing unit 202 is further configured to control the anti-theft monitoring device to enter and maintain a defense state when the wireless communication module does not receive the authorized user identity information and there is no human activity in the monitored area.
If the identity information of the approved user is not received, the approved user is not in the house, namely no family member exists, and meanwhile, the human body activity is not monitored, the situation that the person invades is indicated, the defense state is kept at the moment, and no alarm information is sent out.
The processing unit 202 is further configured to control the human activity monitoring modules 201 to maintain an operating state and check the operating state of each human activity monitoring module 201 when the anti-theft monitoring device enters a defense deployment state.
In an embodiment, the processing unit 202 is further configured to control the anti-theft monitoring device to enter a security state when the wireless communication module receives the authorized user identity information.
The processing unit 202 is further configured to turn off all or a part of the human activity monitoring modules when the anti-theft monitoring device enters a safe state, and not send alarm information.
When the approved user identity information is received, namely the family member returns to the house, the defense deploying state can be released, the safety state is entered, and when the family member leaves the house, the approved user identity information is not received and no human body moves, the deploying state is automatically entered. Like this, theftproof monitoring devices can be according to whether family member gets back to automatic change state in the house, need not manual switching, improves theftproof monitoring devices's intelligent degree.
As shown in fig. 4, in an embodiment, the anti-theft monitoring device further includes at least one timing unit 205, the processing unit is connected to the timing unit, and the processing unit is further configured to start the timing unit and compare a timing duration of the timing unit with a threshold when the wireless communication module receives the identity information of the authorized user and no human body activity exists in all the monitoring areas, if the timing duration is greater than or equal to the threshold, the processing unit controls the anti-theft monitoring device to enter a defense state, and if the timing duration is less than the threshold, the processing unit controls the anti-theft monitoring device to enter or maintain a safe state.
The processing unit 202 is further configured to control all the human body activity monitoring modules 201 to enter a working state when the anti-theft monitoring device enters a defense deployment state, stop the timing of the timing unit, and return the timing duration of the timing unit to zero.
When the received identity information of the approved user indicates that family members exist in the house and the family members do not have a rest, the family members move in the house, and each human body activity monitoring module can monitor human body activity, so that the safety state can be kept and no alarm information is sent. When the family member takes a short break, i.e. the break time is less than the threshold value, for example, the threshold value is 10 minutes, and then the family member is active again, the timing duration at this time is less than the threshold value, and then the safety state can still be kept at this time. When the family members have a long rest, no human body activity exists in the monitoring area, the timing duration is greater than or equal to the threshold value, the family members are indicated to enter a long rest state, for example, sleep, and then all the human body activity monitoring modules are turned on again to enter a distribution state. Therefore, the anti-theft monitoring device can judge the activity or rest state of the user according to the activity state of the user, and further change the working state of the user, and the intelligent degree is improved.
In an embodiment, the processing unit 202 is further configured to control the anti-theft monitoring device to enter an alarm state after the anti-theft monitoring device enters the arming state and when there is human body activity in the monitoring area.
After the user enters the laying state, for example, the user enters the sleeping state, the user is monitored to enter the alarming state when the user monitors the human body activity and the human body invades, and the user is reminded.
In an embodiment, the processing unit 202 is further configured to obtain a final activity monitoring area of an authorized user when the anti-theft monitoring device enters a arming state, control the anti-theft monitoring device to enter an alarm state after the anti-theft monitoring device enters the arming state and when human activities exist in the monitoring area except the final activity monitoring area of the authorized user, and control the anti-theft monitoring device to enter a safety state when human activities exist in the final activity monitoring area of the authorized user.
The approved user final activity monitoring area is the last monitoring area in which human body activity is monitored, for example, when family members return to the bedroom, i.e., the first monitoring area 101, from the living room, i.e., the second monitoring area 102 for sleep and rest, the first monitoring area 101 is the approved user final activity monitoring area, after entering the distribution state, if human body activity is monitored in the approved user final activity monitoring area, i.e., the bedroom, the human body activity is sent by the approved user, for example, the approved user gets up from the bed and drinks water, then the alarm state is not entered, so as to avoid false alarm, but when human body activity exists in the monitoring area of the unapproved user final activity monitoring area, human intrusion is indicated, at this time, the alarm state is entered, the user is reminded, for example, after the family members sleep, the kitchen, i.e., the fourth monitoring area 104, so as to indicate human intrusion from the fourth monitoring area, at the moment, an alarm state is required to be entered to remind the user.
The anti-theft monitoring device provided by the embodiment of the invention can automatically identify whether the approved user is indoors or not, intelligently judge whether the approved user has a rest or not according to the indoor human body activity condition, further automatically change the operation state, timely send alarm information when someone invades to remind the approved user, avoid the loss of personal and property safety, simultaneously, intelligently identify the final activity area of the approved user, avoid the false alarm and improve the intelligent degree of the anti-theft monitoring device.
As shown in fig. 5, an embodiment of the present invention provides an antitheft management device 30, where the antitheft management device 30 includes:
a wireless transmitting unit 301, configured to transmit the authorized user identity information to the anti-theft monitoring device through a wireless transmission manner.
In practical applications, the above anti-theft monitoring device may be disposed in an anti-theft management device, such as a smart phone or a smart watch, the wireless transmitter module may be a bluetooth wireless transmitter module, a WiFi wireless transmitter module, an NFC transmitter module, an RFID transmitter module, a Zigbee transmitter module, a BLE-Mesh transmitter module, etc., and the authorized user identity information such as fingerprint information, voice information, facial feature information, login password, pairing information of the anti-theft monitoring device, identification information of the anti-theft monitoring device, etc. is transmitted through bluetooth, ibeacon, WiFi, NFC, RFID, Zigbee, BLE-Mesh, etc. wireless transmission methods.
An obtaining module 303, configured to obtain identity information of an authorized user and send the identity information of the authorized user through the wireless sending unit 301, or the obtaining module 302 is configured to obtain an operation instruction of the authorized user and control the wireless sending unit 301 to send the identity information of the authorized user.
In practical application, the acquisition module can be a fingerprint sensor, a microphone, a camera, a virtual keyboard and the like.
The anti-theft management device provided by the embodiment of the invention can send the approved user identity information to the outside in a wireless transmission mode, automatically and quickly verifies the user identity after entering the monitoring area, does not need manual switching of the user, is convenient for the user to operate, and improves the intelligent degree of the anti-theft management device.
As shown in fig. 6, a schematic flow chart of an anti-theft monitoring method according to an embodiment of the present invention is applied to an anti-theft monitoring device or apparatus for performing anti-theft monitoring on a plurality of monitoring areas, and the method includes the following steps:
step 601: and monitoring whether human body activity exists in the multiple monitoring areas. The human body activity can be the actions of walking, running and the like of a person, and once the person walks, runs and other activities in the monitoring area, the human body activity in the monitoring area is judged.
Step 602: and receiving the identity information of the approved users in each monitoring area.
The identity information of authorized user is the identity information transmitted by authorized user, i.e. family member, and portable anti-theft management device through wireless transmission, such as fingerprint information, voice information, facial feature information, login password, anti-theft management device pairing information, anti-theft management device identification information, etc. which can be used for confirming the identity of authorized user
Step 603: and entering an alarm state when the identity information of the approved user is not received and human body activities exist in the monitoring area.
If the identity information of the approved user is not received, the fact that the approved user is not in the house, namely, no family member exists is shown, meanwhile, if human body activity is monitored, the fact that the person invades is shown, and at the moment, an alarm state is entered to remind the user.
Specifically, the method further comprises the following steps after entering the alarm state: and generating and sending alarm information.
As shown in fig. 7, in an embodiment, the method further includes:
step 604: and entering and maintaining the defense state when the identity information of the approved user is not received and no human body activity exists in the monitoring area.
Specifically, the method further comprises the following steps after entering the defense state: and continuously monitoring whether human body activity exists in the monitoring area.
Step 605: and controlling the anti-theft monitoring device to enter a safe state when the approved user identity information is received.
Specifically, the method further comprises the following steps after entering the safe state: and stopping monitoring whether human body activity exists in all or part of the monitored area.
As shown in fig. 8, in an embodiment, the method further includes:
step 804: and when the identity information of the approved user is received and no human body activity exists in all the monitoring areas, timing, comparing the timing duration with a threshold value, and entering a defense deployment state if the timing duration is greater than or equal to the threshold value.
Specifically, the method further comprises the following steps after entering the defense state: stopping timing and resetting the timing duration to zero.
Step 805: and acquiring the final activity monitoring area of the approved user when entering the defense state.
Step 806: and when the monitoring area except the final activity monitoring area of the approved user has human body activity after entering the defense deploying state, entering an alarm state.
Step 807: and entering a safety state after entering the defense deploying state and when human body activities exist in the final activity monitoring area of the approved user.
It should be noted that, in the embodiment of the present invention, a certain order does not necessarily exist between the above steps, and those skilled in the art can understand, according to the description of the embodiment of the present invention, that the above steps may have a different execution order in different embodiments, or the above steps may be executed in parallel.
The anti-theft monitoring method provided by the embodiment of the invention can automatically identify whether the approved user is indoors or not, intelligently judge whether the approved user has a rest or not according to the indoor human body activity condition, further automatically change the operation state, timely send alarm information when someone invades to remind the approved user, avoid the loss of personal and property safety, simultaneously, intelligently identify the final activity area of the approved user, avoid the false alarm and improve the intelligent degree of anti-theft monitoring.
As shown in fig. 9, a schematic flow chart of an anti-theft management method according to an embodiment of the present invention is provided, where the method is applied to an anti-theft management apparatus or device, and the method includes the following steps:
step 901: and obtaining the identity information of the approved user.
Step 902: and sending the approved user identity information in a wireless transmission mode.
The anti-theft management method provided by the embodiment of the invention can send the approved user identity information to the outside in a wireless transmission mode, automatically and quickly verify the user identity after entering the monitoring area, does not need manual switching of the user, is convenient for the user to operate, and improves the intelligent degree of anti-theft management.
As shown in fig. 10, an anti-theft monitoring device 1000 according to an embodiment of the present invention is provided, where the anti-theft monitoring device 1000 includes:
one or more processors 1001 and memory 1002, the processors 1001 and memory 1002 may be connected by a bus or other means.
The memory 1002 is a non-volatile computer-readable storage medium that may be used to store non-volatile computer-executable programs. The processor 1001 executes various functional applications and data processing of the antitheft monitoring device by running a nonvolatile computer program stored in the memory 1002, that is, implements the antitheft monitoring method of the above-described method embodiment.
The anti-theft monitoring equipment can be intelligent household products such as an intelligent switch and an intelligent socket. Preferably, the anti-theft monitoring device is an intelligent switch, the intelligent switch is used for controlling the working state of one or more lamps, the intelligent switch is generally arranged at each obvious position in a room and is a necessary position when the intelligent switch moves in the room, for example, the door of each room, so that the space can be saved, the concealment of the anti-theft monitoring device can be improved, and the monitoring accuracy can be improved.
As shown in fig. 11, an antitheft management device 2000 is provided for an embodiment of the present invention, where the antitheft management device 2000 includes:
one or more processors 2001 and memory 2002, the processors 2001 and memory 2002 may be connected by a bus or other means.
The memory 2002 is a non-volatile computer-readable storage medium that can be used to store non-volatile computer-executable programs. The processor 2001 executes various functional applications of the theft management apparatus and data processing by running the nonvolatile computer program stored in the memory 2002, that is, implements the theft management method of the above-described method embodiment.
The anti-theft management equipment can be mobile electronic equipment which can be carried by a user, such as a smart phone, a smart watch, a smart bracelet and a smart key ring, the user can recognize the identity of the user by carrying the anti-theft management equipment, and the anti-theft monitoring equipment can be managed by the anti-theft management equipment, preferably, the anti-theft management equipment is a smart phone.
As shown in fig. 12, an anti-theft system 3000 according to an embodiment of the present invention is provided, where the anti-theft system 3000 includes an anti-theft monitoring device 3001 and an anti-theft management device 3002, where the anti-theft monitoring device 3001 has the functions described in the above-mentioned embodiment of the anti-theft monitoring device and executes the method steps of the above-mentioned embodiment of the anti-theft monitoring method, and the anti-theft management device 3002 has the functions described in the above-mentioned embodiment of the anti-theft management device and executes the method steps of the above-mentioned embodiment of the anti-theft management method.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Of course, the foregoing is only a preferred embodiment of the invention and should not be taken as limiting the scope of the embodiments of the invention. The present invention is not limited to the above examples, and equivalent changes and modifications made by those skilled in the art within the spirit and scope of the present invention should be construed as being included in the scope of the present invention.