CN109972918A - Intelligent key - Google Patents
Intelligent key Download PDFInfo
- Publication number
- CN109972918A CN109972918A CN201810077031.5A CN201810077031A CN109972918A CN 109972918 A CN109972918 A CN 109972918A CN 201810077031 A CN201810077031 A CN 201810077031A CN 109972918 A CN109972918 A CN 109972918A
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- China
- Prior art keywords
- door
- sliding window
- time
- key
- display screen
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
- E05B19/0088—Displays on keys, e.g. LED or LCD screens
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
- E05B19/22—Keys with devices for indicating whether the last operation was locking or unlocking
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- Lock And Its Accessories (AREA)
Abstract
The present invention relates to single-chip microcontrollers and sensor technical field, provide a kind of Intelligent key.Intelligent key of the invention includes: soft-touch control, single-chip microcontroller, at least two ball sensors, real-time clock module, power module and display screen；The soft-touch control is connect with the single-chip microcontroller, for sending external wake signal to the single-chip microcontroller；The single-chip microcontroller is connect at least two balls sensor, for being locked a door movement after receiving the external wake signal according to the detection signal identification of at least two balls sensor；The real-time clock module is connect with the single-chip microcontroller, and for timing and the time that will lock a door is supplied to the single-chip microcontroller；The power module is used to power to other each component parts；The display screen is connect with the single-chip microcontroller, is locked a door the time for showing.It is the time that Intelligent key of the invention can identify the movement locked a door and record is locked a door, smaller to the change of key, identify that movement of locking a door, programming are simple using ball sensor.
Description
Technical field
The present invention relates to single-chip microcontroller and sensor technical field more particularly to a kind of Intelligent key.
Background technique
In daily life, for many middle-aged and the old and brain worker, it is frequently present of and withdraws from a room when locking a door not
Whether wholwe-hearted situation to locking to move into one's husband's household upon marriage and producing query, causes it to have to return so that it is after a period of time that withdraws from a room
It is checked, is wasted time, energy and resource.The existing available technology for solving the problems, such as this is intelligent door lock, part intelligent door lock
User can be reminded to lock a door in a manner of alarm etc. when user leaves.Intelligent door lock can play the role of that user is reminded to lock a door, but
Installation intelligent door lock, which needs to lock on the door, to be replaced, and the degree of difficulty of deployment is larger, and cost is relatively high, it is not easy to true
The middle-aged and the old just needed receives.
The published patent application application No. is 201610292856.X (Publication No. CN105971399A) discloses
A kind of Intelligent key based on photoelectric sensor, the Intelligent key are based primarily upon photoelectric sensor, can achieve record key rotation
It turn-takes several purposes, but can not record user locks a door the time to reach user and can be confirmed whether specific time once locked a door
Purpose, and the Intelligent key needs the key that user more renews, cannot directly be installed at it is existing on the key.Application No. is
The patent application of 201120188133.8 (Publication No. CN202227786U) discloses a kind of key of door locking prompt facility,
Although capableing of the time of suggestion locking door, this application records the time in such a way that triggering key detects key joint element for bar, essence
Degree is not high, meanwhile, which makes more complicated modification to the mechanical structure of key itself, it is also desirable to the key that user more renews
Spoon.
Summary of the invention
(1) technical problem
The technical problem to be solved in the present invention is to provide a kind of Intelligent key, it can identify that locks a door moves when user locks a door
Make the time or lock a door away from the modern time that simultaneously accurate recording is locked a door.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides a kind of Intelligent key, comprising: soft-touch control, single-chip microcontroller, extremely
Few two ball sensors, real-time clock module, power module and display screen；
The soft-touch control is connect with the single-chip microcontroller, for sending external wake signal to the single-chip microcontroller；
The single-chip microcontroller is connect at least two balls sensor, for the root after receiving the external wake signal
It locks a door movement according to the detection signal identification of at least two balls sensor；
The real-time clock module is connect with the single-chip microcontroller, and for timing and the time that will lock a door is supplied to the monolithic
Machine；
The power module is used to power to other each component parts；
The display screen is connect with the single-chip microcontroller, is locked a door the time for showing.
Further, the shell mechanism of the Intelligent key is a hollow the shank of the key, and the display screen is arranged in the sky
On the front shell of heart the shank of the key, lacing hole, another side frame of the display screen are set on the side frame of the display screen
Upper setting first clamping piece and first tightens knob, sets in the back side, the position opposite with the display screen of the hollow the shank of the key
The soft-touch control is set, tightens knob at the back side of the hollow the shank of the key, with the positive first clamping piece and described first
Symmetrical position setting second intermediate plate and second tightens knob, and described first, which tightens knob and described second, tightens knob difference
The fixed first clamping piece and the second intermediate plate are used for one cavity of formation among the first clamping piece and the second intermediate plate
Place normal key, the single-chip microcontroller, at least two balls sensor, the real-time clock module and the power module
It is arranged in the shell of the hollow the shank of the key.
Further, the shell mechanism of the Intelligent key includes the shank of the key and key bar, and the display screen is arranged in institute
The front of the shank of the key is stated, lacing hole is set on the side frame of the display screen, the key is arranged in the other side of the display screen
The soft-touch control, the single-chip microcontroller, institute is arranged in the back side, the position opposite with the display screen of the shank of the key in key lever
State the shell that the Intelligent key is arranged at least two ball sensors, the real-time clock module and the power module
It is interior.
Further, the operating mode of the Intelligent key is time mode of locking a door, detailed process are as follows: after power-up initializing
Into low-power consumption standby state, the screen of the display screen extinguishes, and the internal clocking stalling of the single-chip microcontroller is not received except outside
All interruptions except wake-up interrupts, the real-time clock module follow physical time to operate normally；When user contacts the touching
When touching switch or locking a door, the display screen last record of display is locked a door the time, starts to identify the movement that user locks a door；Work as knowledge
It when other result is locked a door for user, reads, store the time in the real-time clock module and show on the display screen, to upper
The primary time of locking a door is updated, and returns to low-power consumption standby state after updating；When recognition result is not that user locks a door, again
Into low-power consumption standby state.
Further, the operating mode of the Intelligent key is away from modern time mode, detailed process are as follows: after power-up initializing
Into low-power consumption standby state, the screen of the display screen extinguishes, and the internal clocking stalling of the single-chip microcontroller is not received except outside
All interruptions except wake-up interrupts；When user contacts the soft-touch control or locks a door, the last lock of display screen display
Door starts to identify the movement that user locks a door apart from the now time；When recognition result is locked a door for user, when resetting described real-time
The time of clock module is 0 and starts timing, then returns to low-power consumption standby state；When recognition result is not that user locks a door, then
It is secondary to enter low-power consumption standby state.
Further, at least two balls sensor includes ball sensors X and ball sensor Y, the ball
Angle between sensors X and the ball sensor Y is 90 degree, and the display screen, the soft-touch control, the monolithic is arranged
Machine, the real-time clock module and the power module are located at the same side of at least two balls sensor.
Further, movement of locking a door, detailed process are identified using the method based on stored counts are as follows: initialize the list
Counter clear in piece machine, into wait state；Judge whether time-out, the end of identification if time-out；If it is not, then further sentencing
It is disconnected whether to receive interruption, it is continued waiting for if not receiving and interrupting, if receiving interruption, by the corresponding counter for interrupting source
Add 1；Judge whether this interruption makes the counter for corresponding to the ball sensor Y reach threshold value, and corresponds to institute before this
The counter for stating ball sensors X has reached threshold value, if so, it is judged as that user locks a door, end of identification；If it is not, then further
Judge whether this interruption makes the counter for corresponding to the ball sensors X reach threshold value, and corresponds to the rolling before this
The counter of pearl sensor Y has reached threshold value, if so, it is judged as that user opens the door, end of identification；If it is not, then continuing waiting for；Its
In, the threshold value is an artificial settings value.
Further, movement of locking a door, detailed process are identified using based on the matched method of mode position are as follows: the ball passes
The interruption that the sensor X and ball sensor Y is generated is respectively labeled as 1 and 2, and generating length according to preset parameter δ is δ
The string P formed by continuous 11With the string P of continuous 2 composition2As two pattern strings, and an empty string S is generated, into etc.
To state；Judge whether time-out, the end of identification if time-out senses if otherwise further determining whether to receive from the ball
The interruption of device X or the ball sensor Y；If not receiving interruption, continue waiting for, it, will interruption pair when receiving interruption
The additional ending in the empty string S of the mark answered, judges the string P1With the string P2Whether be present in the empty string S and
The string P1Position in the string P2Before；If so, it is judged as that user locks a door, end of identification；If it is not, then further judgement
The string P1With the string P2Whether it is present in the empty string S and the string P2Position in the string P1Before；If then
It is judged as that user opens the door, end of identification continues waiting for if it is not, then returning.
Further, movement of locking a door, detailed process are identified using the method based on sliding window are as follows: initialization will be slided
Window empties, into wait state；Judge whether time-out, the end of identification if time-out, if otherwise further determining whether to receive
Interruption from at least two balls sensor；If not receiving interruption, continue waiting for；When receiving interruption, will interrupt
Mark is placed in the sliding window behind the last one data, judges whether the sliding window is filled；If otherwise returning
It returns and continues waiting for, if so, continuing to carry out identifying processing to the sliding window；If being judged as, user locks a door, end of identification, if
It is no, then it further determines whether as user's enabling；If so, end of identification, if it is not, then abandoning first in the sliding window
A interrupt identification makes the sliding window be in discontented state, and return continues waiting for.
Further, at least two balls sensor includes three ball sensors, described to continue to the sliding
Window carries out identifying processing and uses Data Stream Compression, detailed process are as follows: in the initialization procedure, apply for an empty string
For compression strings；After obtaining the sliding window, the value of degree of fluctuation e and most, secondary more difference d are sought, judges the degree of fluctuation e
Whether threshold value δ is less thaneAnd most, secondary more difference d are greater than threshold value δd；Go out occurrence in the sliding window if it is, taking out
The most interrupt identification i of numbermaxTo represent the sliding window；Judge the interrupt identification imaxWhether in the compression strings most
The latter symbol is identical, if then abandoning the sliding window, the identifying processing of the sliding window terminates；If otherwise will be described
Interrupt identification imaxIt is inserted into the compression strings after last symbol, by the compression strings of acquisition and pre-stored lock
Door model is compared；If the compression strings are identical as a certain mode of locking a door, it is judged as that user locks a door, the sliding window
Identifying processing terminate；If the compression strings are different from a certain mode of locking a door, continue to judge the compression strings whether with it is a certain
Enabling mode is identical；Then it is judged as that user opens the door if they are the same, the identifying processing of the sliding window terminates；If it is different, the cunning
The identifying processing of dynamic window terminates；
If being unsatisfactory for the degree of fluctuation e less than threshold value δeAnd most, secondary more difference d are greater than threshold value δd, then judgement be
No to be set as filtered model, if then abandoning the sliding window, the identifying processing of the sliding window terminates；If it is not, then institute
State interrupt identification imaxThe number and+1 for taking two interrupt identifications that quantity is most in the sliding window, as present mode
Symbol returns to and " judges the interrupt identification imaxIt is whether identical as last symbol in the compression strings " step, continues to hold
Row, wherein the threshold value δeWith the threshold value δdFor artificial setting value.
(3) beneficial effect
Above-mentioned technical proposal of the invention has the advantages that
1. the time that Intelligent key of the invention can identify the movement locked a door and record is locked a door helps the middle-aged and the old, note
Recall power decline person and brain worker and is confirming whether it locks a door when withdrawing from a room after leaving.
2. the technical solution adopted in the present invention is smaller to the change of key, and can be fit directly into existing key
On, it is easy with application to implement deployment completely without change without remaking, and to door lock.
3. the present invention identifies movement of locking a door using ball sensor, AD is needed to sample without such as other sensors, program is set
Meter is simple, saves the computing resource and energy consumption of processor.
Detailed description of the invention
Fig. 1 is the comprising modules schematic diagram of Intelligent key of the invention；
Fig. 2A is the front plan view of a shell mechanism of Intelligent key of the invention；
Fig. 2 B is the back side top view of a shell mechanism of Intelligent key of the invention；
Fig. 2 C is the side view of a shell mechanism of Intelligent key of the invention；
Fig. 3 A is the front plan view of another shell mechanism of Intelligent key of the invention；
Fig. 3 B is the back side top view of another shell mechanism of Intelligent key of the invention；
Fig. 3 C is the side view of another shell mechanism of Intelligent key of the invention；
Fig. 4 is the time mode work flow diagram of locking a door of Intelligent key of the invention；
Fig. 5 is Intelligent key of the invention away from modern time mode work flow diagram；
Fig. 6 A is the location diagram in the vertical key of the present invention between three ball sensors and each module；
Fig. 6 B is the location diagram in horizontal type key of the present invention between three ball sensors and each module；
Fig. 7 is that the present invention identifies the method flow diagram based on stored counts in movement of locking a door；
Fig. 8 is that the present invention identifies in movement of locking a door based on the matched method flow diagram of mode position；
Fig. 9 is that the present invention identifies the method flow diagram based on sliding window in movement of locking a door；
Figure 10 is that the present invention is based on the Data Stream Compression flow charts in sliding window method；
Figure 11 is the physical circuit figure of Intelligent key of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is the comprising modules schematic diagram of Intelligent key of the invention.As shown in Figure 1, Intelligent key of the invention includes:
Soft-touch control, single-chip microcontroller, at least two ball sensors, real-time clock module, power module and display screen.
Soft-touch control is connect with single-chip microcontroller, for sending external wake signal to single-chip microcontroller.Single-chip microcontroller and at least two rollings
Pearl sensor connection, for being locked a door after receiving external wake signal according to the detection signal identification of at least two ball sensors
Movement.Real-time clock module is connect with single-chip microcontroller, and for timing and the time that will lock a door is supplied to single-chip microcontroller.Power module is for giving
Other each component part power supplies.Display screen is connect with single-chip microcontroller, is locked a door the time for showing.
In debugging, debugging can be used display screen as attachment, by another display output end of single-chip microcontroller and debugging
Display screen connection.
Intelligent key of the invention may be designed as two kinds of structures, and one of structure, will be intelligent as shown in Fig. 2A, 2B, 2C
Key is fabricated to the shape of hollow the shank of the key, using the structural clamps such as screw intermediate plate it is existing on the key, key is without again
It prepares.Wherein, the front plan view of Intelligent key is shown in Fig. 2A, and display screen 21 is arranged on the shell of hollow the shank of the key,
Lacing hole 22 is set on the side frame of display screen 21, intermediate plate 23 is set on another side frame of display screen 21 and tightens knob
24.The back side top view of Intelligent key is shown in Fig. 2 B, and soft-touch control 25 and display screen 21 are oppositely arranged on Intelligent key
The back side, it is user-friendly.The side view of Intelligent key is shown in Fig. 2 C, and the two sides of Intelligent key use one to tighten rotation respectively
Button 24 fixes an intermediate plate 23, and centre forms a cavity 26.Intelligent key can be covered in the shank of the key part of existing key, be passed through
Tighten knob 24 and the fixed key bar of intermediate plate 23.Other each modules are arranged in the shell mechanism of hollow the shank of the key.The above text
In front and back be to describe for convenience, and do not constitute a limitation of the invention, in practice can also by display screen 21 be arranged exist
The back side, soft-touch control 25 are arranged in front.
Second of structure can be integrated in the shank of the key part newly manufactured and designed as shown in Fig. 3 A, 3B, 3C.Wherein, Fig. 3 A is aobvious
What is shown is the front plan view of Intelligent key, and lacing hole 22, the other side of display screen 21 is arranged on the side frame of display screen 21
Key bar 27 is set.The back side top view of Intelligent key is shown in Fig. 3 B, and the back side of Intelligent key is arranged in soft-touch control 25,
It is oppositely arranged with display screen 21, it is user-friendly.The side view of Intelligent key is shown in Fig. 3 C, and centre is key bar 27.
Front and back in the above text is to describe for convenience, and do not constitute a limitation of the invention, in practice can also be by display screen
Overleaf, soft-touch control 25 is arranged in front for 21 settings.
Intelligent key of the invention can work under two kinds of operating modes, and one is time modes of locking a door, and one is away from the present
Time mode.It locks a door under time mode, when user, which wakes up, checks screen, it is shown that the last time locked a door, in this mould
Under formula, real-time clock is as the clock work run simultaneously with physical time.Under away from modern time mode, checked when user wakes up
When screen, it is shown that last lock a door away from modern time interval, in such a mode, real-time clock makes as a timer
With while it is working can the timing since 00:00 (when: point).For example, when user is desired to determine whether it is leaving after leaving
When lock move into one's husband's household upon marriage, the time can be locked a door by the last time of observation key record or last time locks a door away from the modern time, when leaving in conjunction with it
Time and the now time be determined.The time that user leaves is 10:00, and in 10:30, user is desired to determine it and leaves
When whether lock and move into one's husband's household upon marriage, Intelligent key can be waken up, if before and after the time showing 10:00 that locks a door of record, or display is away from modern time
00:30 or so then illustrates to lock a door when user leaves.In order not to increase more buttons on the key, both modes can be
It is set when factory.
Fig. 4 is the time mode work flow diagram of locking a door of Intelligent key of the invention.As shown in figure 4, completing to power on initial
After change, into low-power consumption standby state, the screen of display screen extinguishes, and the stalling of single-chip microcontroller internal clocking does not receive except external wake
All interruptions except interruption, real-time clock follow physical time to operate normally.When user contacts soft-touch control or locks a door, by
In the design of shell mechanism of the present invention, user spontaneously touches soft-touch control in the Shi Shouhui that locks a door, and single-chip microcontroller is from low-power consumption shape
State wakes up, and display screen can show locking a door the time for last record, and user can be determined whether when leaving by the time
Lock is moved into one's husband's household upon marriage, if using without relevant information or for the first time, can not show or show herein the prompt informations such as 99:99.Start to identify later
The movement that user locks a door reads when recognition result is locked a door for user, stores the temporal information in real-time clock and be shown in aobvious
In display screen, time of locking a door last time is updated, returns to low-power consumption standby state after updating.When recognition result is not user
When locking a door, then it is again introduced into low power consumpting state, only external wake is allowed to interrupt, Singlechip clock stops, and screen extinguishes, when real-time
Clock is unaffected to remain in operation.
Fig. 5 is Intelligent key of the invention away from modern time mode work flow diagram.As shown in figure 5, completing to power on initial
After change, into low-power consumption standby state, the screen of display screen extinguishes, and Singlechip clock stalling does not receive except external wake-up interrupts
Except all interruptions.When user contacts soft-touch control or locks a door, due to the design of shell mechanism of the present invention, user is locking a door
Shi Shouhui spontaneously touches soft-touch control, and single-chip microcontroller wakes up from low power consumpting state, and display screen shows that the last time locks a door distance now
Time, user can determine whether to lock when leaving by the time to move into one's husband's household upon marriage, if using without relevant information or for the first time, this
Place can not show or show the prompt informations such as 99:99.Start to identify the movement that user locks a door later, when recognition result is user's lock
Men Shi, the time for resetting real-time clock is 00:00 and starts timing, then returns to low-power consumption standby state.When recognition result not
When being that user locks a door, then it being again introduced into low power consumpting state, Singlechip clock stops, and only external wake is allowed to interrupt, display screen
Screen extinguishes, and real-time clock is unaffected to remain in operation.
Fig. 6 A is the location diagram in the vertical key of the present invention between three ball sensors and each module；Fig. 6 B is this
Location diagram in invention horizontal type key between three ball sensors and each module, for three ball sensors are set
It is illustrated.Ball sensor is toppled over mainly for detection of object, and main sensing arrangement is by electrode feeler, ball and shell
Composition, when ball sensor is overturned to specific position, ball can and electrode feeler be in contact, two electrode feelers conductings,
So that output level changes.As shown in Fig. 6 A, 6B, vertical key (being longitudinally inserted into door lock) and horizontal type key is set forth
The schematic diagram of (laterally inserted door lock).Three ball sensors are in the same plane, direction respectively with the angle of horizontal direction
It is 0 degree, 90 degree and 270 degree, ball sensors X 61, ball sensor Y62, ball sensor Z63 can be respectively defined as, wherein
Not necessarily 0 degree and 90 degree of the position of ball sensors X 61 and ball sensor Y62, as long as angle between the two is 90 degree
, the position of ball sensors X 61 and ball sensor Y62 can be set as needed.Settable display screen 21, soft-touch control
25, the circuit structure 66 and power module 67 of single-chip microcontroller and real-time clock module composition are located at the same of three ball sensors
Side, three ball sensors are connected with the external interrupt interface of single-chip microcontroller respectively.
Specifically, identification user locks a door when acting, when ball sensor rotation is to specific position, ball sensor meeting
Generate a degree of oscillation, corresponding interrupt interface can be generated and be interrupted for several times, ball sensors X 61, ball sensor Y62,
The interruption that ball sensor Z63 is generated is respectively labeled as 1,2,3, i.e. the input data of recognition methods is by 1,2,3 three kind
The data flow that disconnected mark is formed.Identification locks a door and identifies the mode locked a door from the data flow of 1,2,3 formation.Based on above-mentioned knot
Structure can be used identification methods and identify to movement of locking a door.
It acts duration due to locking a door and does not grow generally, and the power consumption of prolonged single-chip microcontroller working condition also compares
Greatly, therefore a stand-by time threshold value can be set to all recognition methods, if it is more than the threshold that single-chip microcontroller, which is in the time waken up,
Value, then can terminate to identify, enter low-power consumption standby state.During identification, door lock can be set and revolved counterclockwise
Switch to lock, be rotated clockwise to open, if lock structure be rotated clockwise for lock, rotate counterclockwise for
It opens, can modify to structure shown in Fig. 6 A, 6B, ball sensors X 61 is subjected to flip horizontal.If ball sensor
X61 and ball sensor Y62 be not as shown in Fig. 6 A, 6B as being configured 0 degree and 90 degree, commutative ball sensor
The position of X61 and ball sensor Y62 make it can be used for being rotated clockwise the door for lock.
It specifically locks a door movement since a variety of methods identification users can be used, is exemplified below and is illustrated.
Fig. 7 is that the present invention identifies the method flow diagram based on stored counts in movement of locking a door.Method based on stored counts
Record single-chip microcontroller receives the number of interruptions from each sensor, is provided using ball sensors X 61 and ball sensor Y62
Data.When key is rotated to direction of locking a door, continuous interruption can first occur for ball sensors X 61, then ball sensor Y62
Occur continuously to interrupt again；Ball sensor Y62 can first occur continuously to interrupt when rotating to enabling direction, then ball sensor
X61 occurs continuously to interrupt again.Therefore, it is sensed when the time that the number of interrupts of ball sensors X 61 reaches threshold value prior to ball
When the number of interrupts of device Y62 reaches the time of threshold value, it can recognize and lock a door for user.When the number of interrupts of ball sensor Y62 reaches
When reaching the time of threshold value prior to the number of interrupts of ball sensors X 61 to time of threshold value, it can recognize as user's enabling.Other
Situation then belongs to the intermediate state of noise or not up to door lock door state.
As shown in fig. 7, the counter clear in single-chip microcontroller is judged whether time-out subsequently into wait state by initialization,
Recognizer terminates if time-out.If otherwise further determining whether to receive interruption, continued waiting for if do not received.If receiving
To interruption, then the corresponding counter for interrupting source is added 1, if such as this interruption source is the meter of ball sensor Y62, Y
Number device numerical value increases by 1.Judge whether this interruption makes the counter of corresponding ball sensor Y62 reach threshold value later, and
Counter of corresponding ball sensors X 61 has reached threshold value before this, if so, being judged as that user locks a door, recognizer terminates；
If it is not, then further judging whether this interruption makes the counter of corresponding ball sensors X 61 reach threshold value, and before this
The counter of corresponding ball sensor Y62 has reached threshold value, if so, being judged as that user opens the door, recognizer terminates；If it is not,
Then continue waiting for.Above-mentioned threshold value can be manually set based on practical experience.
Fig. 8 is that the present invention identifies the flow chart based on mode position matching process in movement of locking a door.Based on mode position
The main thought of method of completing the square are as follows: interrupt the successive of generation by the way that detection ball sensors X 61 and ball sensor Y62 more times are continuous
Sequence judges whether key rotates and direction of rotation.If ball sensors X 61 continuously interrupts and appears in ball sensor
Before Y62 is continuously interrupted, illustrate that key occurs to rotate to direction of locking a door, if the continuous interruption of ball sensors X 61 occurs
It is continuously interrupted below in ball sensor Y62, then illustrates that key occurs to rotate to enabling direction.If not occurring above situation, say
Bright key is not on above two state, belongs to noise or among rotary course.Based on the matched method of mode position
It is the data provided using ball sensors X 61 and ball sensor Y62.
As shown in figure 8, generating the string P formed by continuous 1 that length is δ according to preset parameter δ1With it is continuous
The string P of 2 compositions2As two pattern strings, and an empty string S is generated, into wait state.Judge whether time-out, if time-out
Recognizer terminates, if otherwise further determining whether to receive the interruption from sensor.If be not received by from sensing
The interruption of device then continues waiting for, and when receiving interruption, will interrupt the corresponding additional ending in empty string S of mark, and judge string P1With
String P2Whether be present in string S in and string P1Position string P2Before.If so, it is judged as that user locks a door, recognizer knot
Beam；If it is not, then further judging string P1With string P2Whether be present in string S in and string P2Position string P1Before.If so,
It is judged as that user opens the door, recognizer terminates；It is continued waiting for if otherwise returning.String P is found in string S1With string P2Position when,
Find string P1With string P2First time occur position.
Fig. 9 is that the present invention identifies the flow chart based on sliding window method in movement of locking a door.Method based on sliding window
Whole interrupt identifications are segmented and carry out identifying processing, wherein each section with regular length is known as a sliding window, should
Regular length is known as the width of sliding window, needs to predefine.There is overlapping between adjacent sliding window, the latter is sliding
Dynamic window abandons first interrupt identification of previous sliding window, and adds a new interrupt identification, remaining part in tail portion
Split-phase is same.
As shown in Figure 9.It is initialized first, including sliding window is emptied.Enter wait state later, judges whether
Time-out, recognizer terminates if time-out, if it is not, further determining whether to receive the interruption from sensor.When not receiving
When interruption, return is continued waiting for, and when receiving interruption, interrupt identification is placed in sliding window behind the last one data.
Judge whether sliding window is filled, is continued waiting for if otherwise returning, if so, using a pair of sliding window of following three kinds of methods
Mouth carries out identifying processing.If being judged as, user locks a door, and recognizer terminates；If it is not, then further determining whether to open for user
Door.If so, recognizer terminates；If it is not, first interrupt identification then abandoned in sliding window is in sliding window not
Full state then proceedes to wait.It since the processing capacity of single-chip microcontroller is limited, identifies that the number of operation is relatively more, is actually answering
Sliding speed v can be set in, i.e., for v sliding window of arbitrary continuation, first 1 sliding window is identified, after discarding
The continuous v-1 sliding window in face.
When obtaining sliding window, for each sliding window, following three kinds of methods can be used and carry out identifying processing.
During identifying processing, the data of ball sensors X 61, ball sensor Y62 and ball sensor Z63 offer are used.
Method one is Data Stream Compression.
In the initialization procedure based on sliding window method, apply for that an empty string is compression strings, compression strings are entirely being known
It will not be emptied due to re-calling sliding window processing method during not, and be to maintain and called at sliding window with last
It is identical at the end of reason method.Data Stream Compression is for each sliding window, and with wherein quantity, that most interrupts mark
Will represents this sliding window as symbol, and the symbol is put into compression strings.But do not allow to occur in compression strings identical
Continuous symbol, when prepare be added compression strings in symbol it is identical with previous symbol when, then discarding be added without compression strings.In list
Some representatives can be stored in advance in piece machine to lock a door, open the door and the compression strings of noise are as template, template can be by experiment acquisition, i.e.,
Collect largely lock a door, open the door and when other are acted the compression strings that generate in aforementioned manners as template.When in use, whenever compression
When string obtains new symbol, then it is matched with template, if the String matching in the template of compression strings and a certain classification at
When function, then it is judged as the movement of its category.
But in actual use, part sliding window internal interrupt mark very disunity, appearance may break up bright
It is aobvious or fluctuate violent situation, to solve this problem, degree of fluctuation e and most, secondary more difference d is defined in sliding window to measure
The degree of fluctuation and differentiation degree of data in some sliding window.Degree of fluctuation e in window is defined as: from a sliding window
Second interrupt identification starts to a last interrupt identification to terminate in mouthful, for any one interrupt identification, if this is interrupted
Indicate, then e increase by 1 different from its previous interrupt identification.At most, secondary more difference d is defined as: in a sliding window,
The difference of most symbol quantity and secondary more symbol quantity.
The two amounts of e and d are for finding that those fluctuate the violent and higher sliding window of differentiation degree, in application method one
When, single-chip microcontroller can be set as to filtered model, i.e., directly abandon d and be less than threshold value δdIt is greater than threshold value δ with eeSliding window, that is, recognize
It is the noise of disturbance ecology, threshold value δ for such datadWith threshold value δeIt can be manually set.Filtered model can also not be used, then is made
The compression result of the window, example are indicated with the sum of most and secondary more numbers of two end marks of quantity in sliding window+1
Mark as most in a sliding window is 1, and secondary more mark is 2, then the compression result of the sliding window is 4.This selection
It can be predefined in designing system and acquisition template, it is when in use, consistent with mode when obtaining template.
Figure 10 is that the present invention is based on the Data Stream Compression flow charts in sliding window method.As shown in Figure 10, it obtains
After sliding window, the value of e and d are sought according to definition, then judges whether e is less than threshold value δeAnd d is greater than threshold value δd, if it is, taking
The most interrupt identification i of frequency of occurrence in sliding window outmaxTo represent this sliding window.Judge imaxWhether in compression strings
Last symbol is identical, if then abandoning this sliding window, this terminates the identifying processing of sliding window.If it is not, then
By imaxIt is inserted into compression strings after last symbol, the compression strings of acquisition is compared with the pre-stored mode of locking a door,
If it is identical as a certain mode of locking a door, it is judged as that user locks a door, the identifying processing of sliding window terminates.If its with it is a certain
Mode of locking a door is different, continues to judge whether it is identical as a certain enabling mode, is then judged as that user opens the door if they are the same, sliding window
Identifying processing terminate, if it is different, then the identifying processing of sliding window terminates.
If being unsatisfactory for e less than threshold value δeAnd d is greater than threshold value δd, then judge whether to be set as filtered model, if then directly losing
This sliding window is abandoned, the identifying processing of sliding window terminates.If otherwise imaxTake two interruptions that quantity is most in sliding window
The number and+1 of mark returns to as the symbol of present mode and " judges imaxWhether with last symbol phase in compression strings
Step together " continues to execute program.
Method two is that DTW algorithm (Dynamic Time Warping, dynamic time consolidation) and two kinds of k neighbour are used in combination
Algorithm.
It needs to store the locking a door of equivalent in single-chip microcontroller in advance, open the door and the sliding window pattern string of noise and its corresponding
It marks, such as 333311111122223333 be form of locking a door, as training data.When being identified, with the measurement of DTW algorithm
The distance between each sliding window pattern string of sliding window w and training data obtained in use, take wherein k with
W gathers apart from the smallest formation k neighbour.The most annotation results of quantity are selected as identifying processing from k neighbour set again
As a result, result of the mark of the smallest pattern string of distance in k neighbour set as identifying processing can also be used directly.
Method three is the method based on artificial neural network.
Sliding window is input in feedforward neural network and is identified.The number of nodes of the input layer of feedforward neural network
It is of same size with sliding window；The number of nodes of hidden layer can be rule of thumb configured, such as may be configured as the section of input layer
The 2/3 of point quantity；Output layer includes two nodes, respectively o1And o2；Work as o1Output is 1 and o2When output is 0, it is judged as disconnected
It locks a door；Work as o1Output is 0 and o2When output is 1, it is judged as that user opens the door, other situations are then judged as noise.Feedforward neural network
Training method be back-propagation algorithm, training set be process manually mark lock a door, open the door and noise pattern string, wherein locking a door
It is corresponding to be labeled as o1=1 and o2=0, enabling is labeled as o1=0 and o2=1, noise is corresponding to be labeled as o1=0 and o2=0.
Method two and three operand of method are larger, are suitble to use the faster single-chip microcontroller of arithmetic speed, need using biggish
Window width, can also be without using sliding window and using obtaining preferably to reflect feature that data have in this wakeup process
The string of the whole interrupt identifications composition obtained.
Figure 11 is the physical circuit figure of Intelligent key of the invention.As shown in figure 11, it is being based on STC15W series monolithic
Typical embodiments in, single-chip microcontroller STC15W60S4, real-time clock is DS1302 module, and power supply is a piece of 3V button electricity
Pond, display screen are the 4-digit number liquid crystal display driven with HT1621B.Attachment debugger is LCD1602.Its specific connection relationship is such as
Under:
The VCC and GND of three ball sensors are connected with the VCC of power module and GND, signal output end D with
The P3.3 of STC15W60S4, P3.6, P3.7 (external interrupt 1,2,3) are connected.The VCC and GND of touch tablet and the VCC of power module
It is connected with GND, output signal D is connected with P3.2 (external interrupt 0).The VCC and GND of real-time clock module and power module
VCC is connected with GND, CLK, I/O, and RST is connected with P1.4, P1.5, P1.6 respectively.HT1621B driving liquid crystal display VCC and
GND is connected with the VCC of power module and GND, CS, and WR and DA are connected with P1.1, P1.2 with P1.3 respectively.Attachment debugger screen
Connection method are as follows: VSS and VDD is connected with the VCC of power module and GND respectively, RS, RW and E and P2.5, P2.6 and P2.7 phase
Even.DATA (8) is connected with P0.A and K points are connected with VCC and GND.
Foregoing circuit structure is a kind of typical embodiment, all single-chip microcontrollers and core for possessing same or similar function
Piece all can serve as replacement technology scheme and be applied in the present invention.
The time that Intelligent key of the invention can identify the movement locked a door and record is locked a door helps the middle-aged and the old, memory
Power decline person and brain worker are confirming whether it locks a door when withdrawing from a room after leaving.Used technical solution is to key
Change it is smaller, and can be fit directly into it is existing on the key, without remaking, and to door lock completely without changing
It is dynamic, it is easy with application to implement deployment.Movement of locking a door is identified using ball sensor, needs AD to sample without such as other sensors,
Programming is simple, saves the computing resource and energy consumption of processor.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of Intelligent key characterized by comprising soft-touch control, single-chip microcontroller, at least two ball sensors, it is real-time when
Clock module, power module and display screen；
The soft-touch control is connect with the single-chip microcontroller, for sending external wake signal to the single-chip microcontroller；
The single-chip microcontroller is connect at least two balls sensor, is used for after receiving the external wake signal according to institute
The detection signal identification for stating at least two ball sensors is locked a door movement；
The real-time clock module is connect with the single-chip microcontroller, and for timing and the time that will lock a door is supplied to the single-chip microcontroller；
The power module is used to power to other each component parts；
The display screen is connect with the single-chip microcontroller, is locked a door the time for showing.
2. Intelligent key according to claim 1, which is characterized in that the shell mechanism of the Intelligent key is a hollow key
The shank of the key, the display screen are arranged on the front shell of the hollow the shank of the key, are arranged on the side frame of the display screen and wear
Cord hole, setting first clamping piece and first tightens knob on another side frame of the display screen, in the back of the hollow the shank of the key
The soft-touch control is arranged in face, opposite with display screen position, the hollow the shank of the key the back side, with it is positive described
First clamping piece and described first tighten knob it is symmetrical position setting second intermediate plate and second tighten knob, described first tightens
Knob and described second tightens knob and fixes the first clamping piece and the second intermediate plate respectively, makes the first clamping piece and described
A cavity is formed among second intermediate plate for placing normal key, it is the single-chip microcontroller, at least two balls sensor, described
Real-time clock module and the power module are arranged in the shell of the hollow the shank of the key.
3. Intelligent key according to claim 1, which is characterized in that the shell mechanism of the Intelligent key includes the shank of the key
And key bar, the display screen are arranged in the front of the shank of the key, lacing hole are arranged on the side frame of the display screen, institute
The key bar is arranged in the other side for stating display screen, is arranged in the back side, the position opposite with the display screen of the shank of the key
The soft-touch control, the single-chip microcontroller, at least two balls sensor, the real-time clock module and the power module
It is arranged in the shell of the Intelligent key.
4. Intelligent key according to claim 1, which is characterized in that the operating mode of the Intelligent key is to lock a door the time
Mode, detailed process are as follows: enter low-power consumption standby state after power-up initializing, the screen of the display screen extinguishes, the monolithic
The internal clocking of machine stalls, and does not receive all interruptions in addition to external wake-up interrupts, the real-time clock module follows physics
Time operates normally；When user contacts the soft-touch control or locks a door, when locking a door of the last record of display screen display
Between, start to identify the movement that user locks a door；When recognition result is locked a door for user, reads, stores in the real-time clock module
Time and show on the display screen, time of locking a door last time is updated, returns to low-power consumption standby shape after updating
State；When recognition result is not that user locks a door, it is again introduced into low-power consumption standby state.
5. Intelligent key according to claim 1, which is characterized in that the operating mode of the Intelligent key is away from modern time
Mode, detailed process are as follows: enter low-power consumption standby state after power-up initializing, the screen of the display screen extinguishes, the monolithic
The internal clocking of machine stalls, and does not receive all interruptions in addition to external wake-up interrupts；When user contact the soft-touch control or
When locking a door, the display screen shows that the last time locked a door apart from the now time, starts to identify the movement that user locks a door；When identification is tied
When fruit is locked a door for user, the time for resetting the real-time clock module is 0 and starts timing, then returns to low-power consumption standby shape
State；When recognition result is not that user locks a door, it is again introduced into low-power consumption standby state.
6. Intelligent key according to any one of claims 1 to 3, which is characterized in that at least two balls sensor packet
Ball sensors X and ball sensor Y are included, the angle between the ball sensors X and the ball sensor Y is 90 degree,
The display screen, the soft-touch control, the single-chip microcontroller, the real-time clock module and the power module are set positioned at described
The same side of at least two ball sensors.
7. Intelligent key according to claim 6, which is characterized in that locked a door using the method identification based on stored counts dynamic
Make, detailed process are as follows: initialization is by the counter clear in the single-chip microcontroller, into wait state；Judge whether time-out, if super
When then end of identification；If it is not, then further determining whether to receive interruption, continued waiting for if not receiving and interrupting, if receiving
It interrupts, then the corresponding counter for interrupting source is added 1；Judge whether this interruption makes the meter for corresponding to the ball sensor Y
Number device reaches threshold value, and the counter for corresponding to the ball sensors X before this has reached threshold value, if so, being judged as use
Family is locked a door, end of identification；If it is not, then further judging whether this interruption makes the counter for corresponding to the ball sensors X
Reach threshold value, and the counter for corresponding to the ball sensor Y before this has reached threshold value, if so, being judged as that user opens
Door, end of identification；If it is not, then continuing waiting for；Wherein, the threshold value is an artificial settings value.
8. Intelligent key according to claim 6, which is characterized in that using based on the matched method identification lock of mode position
Door movement, detailed process are as follows: the interruption of the ball sensors X and ball sensor Y generation is respectively labeled as 1 and 2, root
The string P formed by continuous 1 that length is δ is generated according to preset parameter δ1With the string P of continuous 2 composition2As two moulds
Formula string, and an empty string S is generated, into wait state；Judge whether time-out, the end of identification if time-out, if otherwise further
Judge whether to receive the interruption from the ball sensors X or the ball sensor Y；If not receiving interruption, after
It is continuous to wait, when receiving interruption, the corresponding additional ending in the empty string S of mark will be interrupted, judges the string P1With it is described
String P2Whether it is present in the empty string S and the string P1Position in the string P2Before；If so, being judged as that user locks
Door, end of identification；If it is not, then further judging the string P1With the string P2Whether it is present in the empty string S and the string
P2Position in the string P1Before；If being then judged as that user opens the door, end of identification continues waiting for if it is not, then returning.
9. Intelligent key according to any one of claims 1 to 3, which is characterized in that known using the method based on sliding window
It does not lock a door movement, detailed process are as follows: initialization empties sliding window, into wait state；Judge whether time-out, if overtime
Then end of identification, if otherwise further determining whether to receive the interruption from at least two balls sensor；If not receiving
It interrupts, then continues waiting for；When receiving interruption, interrupt identification is placed in the sliding window behind the last one data,
Judge whether the sliding window is filled；It is continued waiting for if otherwise returning, if so, continuing to identify the sliding window
Processing；If being judged as, user locks a door, end of identification, if it is not, then further determining whether as user's enabling；If so, identification
Terminate, so that the sliding window is in discontented state if it is not, then abandoning first interrupt identification in the sliding window, return
It returns and continues waiting for.
10. Intelligent key according to claim 9, which is characterized in that at least two balls sensor includes three
Ball sensor, it is described to continue to carry out the sliding window identifying processing using Data Stream Compression, detailed process are as follows:
In the initialization procedure, apply for that an empty string is compression strings；After obtaining the sliding window, degree of fluctuation e and most, secondary is sought
The value of more difference d, judges whether the degree of fluctuation e is less than threshold value δeAnd most, secondary more difference d are greater than threshold value δd；If
It is then to take out the most interrupt identification i of frequency of occurrence in the sliding windowmaxTo represent the sliding window；Judge in described
Disconnected mark imaxIt is whether identical as last symbol in the compression strings, if then abandoning the sliding window, the sliding window
The identifying processing of mouth terminates；If otherwise by the interrupt identification imaxIt is inserted into the compression strings after last symbol, will obtain
The compression strings obtained are compared with the pre-stored mode of locking a door；If the compression strings are identical as a certain mode of locking a door,
Then it is judged as that user locks a door, the identifying processing of the sliding window terminates；If the compression strings are different from a certain mode of locking a door,
Continue to judge whether the compression strings are identical as a certain enabling mode；Then it is judged as that user opens the door if they are the same, the sliding window
Identifying processing terminate；If it is different, the identifying processing of the sliding window terminates；
If being unsatisfactory for the degree of fluctuation e less than threshold value δeAnd most, secondary more difference d are greater than threshold value δd, then judge whether to set
It is set to filtered model, if then abandoning the sliding window, the identifying processing of the sliding window terminates；If it is not, in then described
Disconnected mark imaxThe number and+1 for two interrupt identifications for taking quantity in the sliding window most, as the symbol of present mode,
Back to " judging the interrupt identification imaxIt is whether identical as last symbol in the compression strings " step, it continues to execute,
Described in threshold value δeWith the threshold value δdFor artificial setting value.
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| CN201810077031.5A CN109972918B (en) | 2018-01-26 | 2018-01-26 | Intelligent key |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810077031.5A CN109972918B (en) | 2018-01-26 | 2018-01-26 | Intelligent key |
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| CN109972918B CN109972918B (en) | 2020-11-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110648438A (en) * | 2019-09-24 | 2020-01-03 | 苏州市恩赐信息技术有限公司 | Intelligent control method of intelligent electric meter |
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