Auxiliary door-opening apparatus and its control method in a kind of ATM protective cabin
Technical field
The present invention relates to the electronic system of ATM protection hatch door, specifically relates in ATM protective cabin using specific
The auxiliary door-opening apparatus and its control method of audio.
Background technology
At present, the ATM withdrawal room (withdrawal booth) of bank, in order to protect depositor more safely to withdraw the money, some is each
(the closing protective cabin of similar closing telephone booth) closing protective cabin (room) is installed outside ATM ATMs, realizes " a people one
Cabin ", hatch door is arranged to the protective door of electronic system, and (once into behind withdrawal room, door lock can be locked automatically, can not be beaten from outside
Open, consequently, it is possible to which citizen will be relatively safer when inside withdrawing cash), the protective door of electronic system is pressed in hatch door provided with enabling
Button, some sets door open button outside hatch door, and some does not set door open button (push and automatically open up), and door open button setting height(from bottom) is side
The height (liftoff about 1.1 meters of the door open button set in general cabin) of people's operation is become, being provided with human body sensing in protective cabin passes
Sensor, usually hatch door be closed.Cabin is in the case of nobody, for having the electronic system for setting door open button outside hatch door
Protective door, by hatch door outside door open button, automatic door opening, cabin open the door stop setting in place time (being traditionally arranged to be 2 seconds) after
Automatic door-closing;For the protective door for the electronic system for not setting door open button outside hatch door, out of my cabin, hatch door can pull open conveniently.People in cabin
After body induction sensor senses someone, locking a door, (automatic locking, by door open button out of my cabin, firmly sliding door is not opened outdoors
Hatch door.), it is supplied to user to operate the disabler opened the door out of my cabin.Locked a door state when hatch door is in, by being pressed by the enabling in cabin
Button could open hatch door, i.e., by the door open button in cabin, automatically open up hatch door, and the time for the setting that pauses (is traditionally arranged to be 2
Second) automatic door-closing afterwards.Perfect design is seemed, the defects of one very big really be present:When only stopping child in protective cabin, child
It will be unable to walk out protective cabin, because being to carry out locking hatch door when human body sensor detects someone in cabin, can only now lead to
The door open button crossed in cabin could open hatch door, and it is failure to be supplied to the door opening function of user out of my cabin, i.e., now out of my cabin
User does not open hatch door.Door open button well-known, that the child in cabin may can't reach, even if reaching door open button, there is also can
Can will not (do not realize by) or strength is small does not operate door open button.So when only stopping child in protective cabin, can only
Calling bank clerk is sought help to 110, and bank clerk or people's police could be from external opening hatch doors by particular form.
It is well known that the ATM ATMs protective cabin in China child is bottled up it is of common occurrence, such as on 07 03rd, 2013 Zhejiang it is new
News reports the news of " 1 years old half boy is stranded fire fighter in ATM protective cabin and saws door lock rescue ";On 03 20th, 2014
《City bulletin》Report the news of " boy was stranded ATM protective cabin in 2 years old ".Although Jiangsu Province, China net hair on April 23rd, 2014
Table " is reminded:It is other that child is fallen in the closed self-help drawing money room of bank " article prompting user:Due to closing protective cabin ATM from
The particularity of dynamic cash dispenser, once there is child to enter wherein, it is likely that it is stranded, take the kids with withdraw cash when, be necessarily careful not handle
Child falls in interior of withdrawing the money.But there occurs numerous children again afterwards to be stranded ATM protective cabin event, such as on July 3rd, 2014《Weight
Celebrate evening paper》Report and " take care!ATM protective cabin gulps down child " news;On 03 18th, 2015《Chongqing Evening News》Report
The news of " ATM protective cabin pins child again ", on May 6th, 2015《Taizhou daily paper》Report that " two years old baby is fond of play to be locked
In self-help drawing money room " news;On 08 28th, 2015, China News Service reported that " one-year-old half young girl in Wuxi is stranded bank ATM
The news of computer room more than 40 minutes people's police's emergency resuce ";And for example on 03 20th, 2014, Jiangsu Province, China net reported " pet dog quilt
Be locked in self-help drawing money room " news;So for protecting the ATM ATM protective cabins of remittee, to child and pet
For dog, become the hidden danger of a safety.
It is well-known:ATM protection cabin has certain sound insulation function, after hatch door is closed, sound meeting inside and outside cabin
Become very small, people out of my cabin does not hear people's sound of speaking in cabin, and the people in cabin does not hear people's sound of speaking out of my cabin.Together
When, once child or pet dog be stranded ATM protective cabins, child can typically be frightened crying of a child wail, pet dog meeting " Wang, Wang ... "
Ceaselessly utter a sound.
The content of the invention
The purpose of the present invention and solve technical problem be for existing ATM protection cabin presence can bottle up child lack
Fall into, propose auxiliary door-opening apparatus and its control method in a kind of ATM protective cabin, realization detect have in ATM protective cabin it is small
When child's sob or/and pet dog utter a sound sound, door opener send enabling control signal to the Department of Electronics of the protective door of ATM protective cabin
System, makes electronic system automatically open up hatch door.
In order to realize above-mentioned purpose, the technical scheme is that:
Auxiliary door-opening apparatus in a kind of ATM protective cabin, including sound detection module, hatch door state-detection electricity are connected respectively
Road, human bioequivalence sensor, the central processor unit of electronic switching circuit;The switch ends of the electronic switching circuit pass through
Line is connected with each other with the both ends of the door open button in cabin respectively;The voice signal sample of enabling is stored with central processor unit
This storehouse, it is embedded with filter function module and amplitude detection function module;The sound detection module includes the Mike being sequentially connected in series
Wind, audio amplifier circuit, A/D change-over circuits;The output of A/D change-over circuits is connected with the input of central processor unit;Institute
The sound detection module stated is two, and the microphone in a sound detection module is arranged in cabin, another sound detection mould
Microphone in block is arranged on out of my cabin;Described human bioequivalence sensor is arranged in cabin.
The hatch door state detection circuit is made up of magnetic switch and magnet, output and the central processing unit list of magnetic switch
Member is connected, and magnet is connected by magnetic field with magnetic switch, magnet be arranged on hatch door on the inside of, magnetic switch it is corresponding with magnet and
On hatch door frame, when hatch door, which is in, closes, magnetic switch detects magnetic field signal, and otherwise magnetic switch can't detect
Magnetic field signal.
The electronic switching circuit is made up of semiconductor and relay, or digital simulation switch etc., digit preference of the present invention
Analog switch CD4066.
The human bioequivalence sensor be used to detecting in ATM protective cabin whether someone, human bioequivalence sensor uses quilt
Dynamic formula pyroelectric infrared detector, a kind of photoelectricity being made up of Thermoelectric Infrared Sensor, Fresnel lens and electronic circuit
Detection means.
The central processor unit is used for sound detection module and hatch door state detection circuit and human bioequivalence sensing
The detection and judgement of the output signal of device, according to detection and judged result accordingly run and operate.
Microphone is used to receive voice signal in cabin in cabin, and microphone is used to receive voice signal out of my cabin out of my cabin.
Above-mentioned purpose is realized, another technical scheme of the invention is:
The control method of auxiliary door-opening apparatus, is following steps in a kind of ATM protective cabin,
S100, the voice signal Sample Storehouse that the voice signal sample of enabling is recorded to deposit door opener in advance, and set
The threshold value of the voice signal amplitude of enabling;
S200, ATM protection cabin door be closed when, it is to be identified to arrive to whether someone is identified in cabin
Someone, carry out the voice signal detection and processing and control of the microphone transmission inside and outside cabin:
A) voice signal that microphone transmission inside and outside cabin is carried out by sound detection module synchronously detects, filter function module
Processing is filtered to voice signal, removes interference signal composition;
B) signal frequency of microphone transmission in cabin and the signal frequency of microphone transmission out of my cabin are compared, work as signal
When frequency is consistent, into step c), otherwise, into step d);
C) amplitude of the voice signal of microphone transmission and the amplitude of the voice signal of microphone transmission out of my cabin in cabin are obtained,
And be compared, if the voice signal amplitude of microphone transmission is more than the voice signal amplitude of microphone transmission out of my cabin in cabin, enter
Enter step d), otherwise, be transferred to step a);
D) signal frequency of voice signal Sample Storehouse in the signal frequency of microphone transmission in cabin and door opener is carried out
Compare, if be stored with voice signal Sample Storehouse it is consistent with the signal frequency of microphone transmission in cabin, into step e), otherwise,
It is transferred to step a);
E) threshold value of the amplitude of the voice signal of microphone transmission in cabin and the voice signal amplitude of the enabling set is entered
Row compares, if the amplitude of the voice signal of microphone transmission is more than the threshold value of setting in cabin, output opens hatch door signal to electronics
The control terminal of on-off circuit, otherwise, it is transferred to step a);
S300, carry out ATM protective cabin in whether someone identification and inside and outside microphone transmission voice signal detection with
During processing and control, if hatch door is opened, terminate perform immediately.
The threshold value for the voice signal amplitude opened the door is set above as 40db.
Voice signal Sample Storehouse described above is the sob of child and the audio for uttering a sound signal of pet dog.
Child described above is set as below 5 one full year of life children, and the pet dog refers to the institute of family that country allows band to go into the street
Foster dog.
Beneficial effect:
Auxiliary door-opening apparatus and its control method in a kind of ATM protective cabin of the present invention, not change ATM protective cabin
The electronic system architecture of the existing hatch door protection in room, if realize that child or/and pet dog are fallen in closed self-help drawing money room,
Auxiliary door-opening apparatus detects the enabling uttered a sound sound just can be in boiler-plate of the sob or pet dog of child in cabin, and using out of my cabin
Microphone prevents the acoustic jamming of uttering a sound of child's sob out of my cabin and pet dog, therefore the present invention solves stranded child or pet dog is walked out
ATM protects cabin, simply, reliably.
Brief description of the drawings
Fig. 1 is the schematic block circuit diagram of auxiliary door-opening apparatus in a kind of ATM protective cabin of the present invention;
Fig. 2 is the FB(flow block) of the control method of auxiliary door-opening apparatus in a kind of ATM protective cabin of the present invention;
Fig. 3 is Mike's hearsay inside and outside the control method middle deck of auxiliary door-opening apparatus in a kind of ATM protective cabin of the present invention
Voice signal detection and processing and the control flow block diagram passed;
In figure:1. microphone, 2. audio amplifier circuits, 3. A/D change-over circuits, 4. central processor units, 5. human bodies are known
Individual sensor, 6. electronic switching circuits, 11. magnetic switch, 12. magnet, 100. hatch door state detection circuits, 200. sound detections
Module.
Embodiment
As shown in figure 1, auxiliary door-opening apparatus in a kind of ATM protective cabin, including central processor unit 4, human bioequivalence
Sensor 5, electronic switching circuit 6, hatch door state detection circuit 100, sound detection module 200;The human bioequivalence sensor
5th, the input of hatch door state detection circuit 100 and sound detection module 200 respectively with central processor unit 4 is connected;It is described
The control terminal of electronic switching circuit 6 is connected with the output of central processor unit 4, and the switch ends of electronic switching circuit 6 are led to
It is connected with each other with the both ends of the door open button in cabin respectively to cross line;The hatch door state detection circuit 100 is by magnetic switch 11
Formed with magnet 12, the output of magnetic switch 11 is connected with the input of central processor unit 4, and magnet 12 passes through magnetic field and magnetic
Property switch 11 be connected;The sound detection module 200 includes microphone 1, audio amplifier circuit 2, A/D change-over circuits 3, Mike
Wind 1 is connected with the input of audio amplifier circuit 2, and the output of audio amplifier circuit 2 is connected with the input of A/D change-over circuits 3,
The output of A/D change-over circuits 3 is connected with the input of central processor unit 4;Described sound detection module 200 is two,
Microphone 1 is arranged in cabin in one sound detection module 200, and microphone 1 is arranged on cabin in another sound detection module 200
Outside;Described hatch door state detection circuit 100 and human bioequivalence sensor 5 are arranged in cabin.In the central processor unit 4
The voice signal Sample Storehouse of enabling is stored with, is embedded with filter function module and amplitude detection function module.
Magnet 12 is arranged on the inside of hatch door in the hatch door state detection circuit 100, and magnetic switch 11 is corresponding with magnet 12
And on hatch door frame, when hatch door, which is in, closes, magnetic switch 11 detects magnetic field signal, and otherwise magnetic switch 11 is examined
Magnetic field signal is not detected;Magnetic switch 11 of the present invention selects the Hall sensor of switching mode, and magnet 12 selects magnet steel.When magnetic is opened
Close 11 and detect magnetic field signal, illustrate that hatch door is closed, magnetic field signal is not detected when recognizing magnetic switch 11,
Illustrate that hatch door is in open mode, the hatch door open mode refers to that hatch door is not off, and as hatch door, which is in, opens
Pause or hatch door is just in ON/OFF moving process.
The human bioequivalence sensor 5 be used to detecting in ATM protective cabin whether someone, human bioequivalence sensor uses quilt
Dynamic formula pyroelectric infrared detector, a kind of photoelectricity being made up of Thermoelectric Infrared Sensor, Fresnel lens and electronic circuit
Detection means, output be " 1 " when detecting people, and it is " 0 " to export during nobody.
The electronic switching circuit 6 be used for physical simulation cabin in door open button work, the switch of electronic switching circuit with
Cabin inward swinging door button and connect, by semiconductor and relay, or digital simulation switch etc. is formed, and digit preference simulation of the present invention is opened
Close, that is, select CD4066 digital simulations switch;The control terminal of electronic switching circuit 6 receives the output of central processor unit 4
For high level when, the switch ends of electronic switching circuit 6 are connected, and the control terminal of electronic switching circuit 6 receives central processing unit
Unit 4 export for low level when, the switch ends of electronic switching circuit 6 disconnect.
Microphone 1 is used to detect voice signal in the sound detection module 200, and audio amplifier circuit 2 is used for Mike
The voice signal that wind 1 detects is amplified, and A/D change-over circuits 3 are used to be converted into through the voice signal that audio amplifier circuit 2 amplifies
Data signal send the detection of central processor unit 4 and processing and control.A/D change-over circuits 3 are from sigma-delta type ADC in the present invention.
The central processor unit 4 is used for sound detection module 200 and hatch door state detection circuit 100 and human body is known
The detection and judgement of the output signal of individual sensor 5, according to detection and judged result accordingly run and operate, central processing
Device unit 4 is equipped with the circuit such as memory and various input/output interfaces composition, is embedded with filtering letter using arm processor as core
Digital-to-analogue block and amplitude detection function module, in memory deposit have the voice signal Sample Storehouse of enabling.
Filter function module is used for the audio digital signal that central processor unit 4 is gathered by A/D change-over circuits 3 and carried out
Filtering, removes interference signal composition, that is, removes below 450Hz low frequencies and 20KHz with high frequency.Amplitude detection function module is used for will
Magnitude of voltage is converted into decibel (db).The voice signal sample library storage of enabling is that the sob of child and pet dog utter a sound signal
Audio-frequency information, only when in cabin microphone 1 gather audio-frequency information compared with the voice signal of Sample Storehouse, there are consistent sound
Can just hatch door be controlled to open during frequency.
As shown in Fig. 2 in ATM protective cabin auxiliary door-opening apparatus control method, following steps,
S100, the memory that the voice signal sample of enabling is recorded to deposit door opener in advance, and the sound of enabling is set
The threshold value of sound signal amplitude, i.e.,:In advance by the storage for uttering a sound signal recording deposit door opener of the sob of child and pet dog
Device, is provided for the Sample Storehouse of sound signal content to open the door, and its sound signal content is the sob and pet dog of child
The audio-frequency information of signal is uttered a sound, the threshold value of the voice signal amplitude of set enabling is:40db, that is, the voice signal amplitude opened the door
Threshold value be 40db;
S200, when ATM protection cabin door is closed, carry out in cabin whether someone identifies, it is to be identified to having
People, voice signal detection and the processing and control transmitted to microphone 1 inside and outside ATM protective cabin, i.e.,:Central processor unit 4
When detecting that hatch door is closed by ATM protection cabin door state detection circuit 100, pass through human bioequivalence sensor
In 5 detection ATM protective cabin cabins whether someone, it is to be identified to after someone, carry out the microphone 1 inside and outside ATM protective cabin and transmit
Voice signal detection with processing and control;
S300, carry out ATM protective cabin in whether someone identification and inside and outside microphone 1 transmit voice signal detection with
During processing and control, if hatch door is opened, terminate perform immediately, i.e.,:Central processor unit 4 passes by human bioequivalence
Sensor 5 detect in ATM protective cabin cabin whether the voice signal detection and processing and control that someone and sound detection module 200 transmit
During system, opened by the hatch door to be checked that measures of hatch door state detection circuit 100, if in carrying out in cabin, whether someone knows
Not, then terminate in cabin whether someone identifies immediately, if in the voice signal detection and place for carrying out the transmission of microphone 1 inside and outside cabin
Reason and control, then microphone 1 transmits inside and outside cabin voice signal detection and processing and control are terminated immediately.
Child described above is set as below 5 one full year of life children, and the pet dog refers to the institute of family that country allows band to go into the street
Foster dog.
As shown in figure 3, microphone inside and outside the S200 step middle decks of the control method of auxiliary door-opening apparatus in ATM protective cabin
The step of 1 voice signal detection transmitted is with handling and controlling is as follows:
A) voice signal that central processor unit 4 is transmitted by sound detection module 200 to microphone inside and outside cabin 1 is carried out
Synchronous detection, filter function module are filtered processing to voice signal, remove interference signal composition;
B) information content transmitted microphone in cabin 1 and the information content that microphone 1 transmits out of my cabin are compared, and work as letter
When ceasing content consistent (identical), into step c), otherwise, into step d);
C) width of the amplitude for the voice signal that microphone 1 transmits and the voice signal of the transmission of microphone 1 out of my cabin in cabin is obtained
Value, and by voice signal amplitude that microphone in cabin 1 transmits compared with the voice signal amplitude that microphone 1 out of my cabin transmits,
If the voice signal amplitude that microphone 1 transmits in cabin is more than the voice signal amplitude that microphone 1 transmits out of my cabin, into step d),
Otherwise, it is transferred to step a);
D) signal content of voice signal Sample Storehouse in the sound signal content and door opener that transmit microphone in cabin 1
It is compared, if the content consistent with the acoustic information that microphone in cabin 1 transmits is stored with voice signal Sample Storehouse, into step
It is rapid e), otherwise, be transferred to step a);
E) threshold value of the amplitude for the voice signal for transmitting microphone in cabin 1 and the voice signal amplitude of the enabling set is entered
Row compares, defeated if the amplitude for the voice signal that microphone 1 transmits is more than the threshold value of the voice signal amplitude of the enabling of setting in cabin
Go out to open hatch door signal to the control terminal of electronic switching circuit 6, otherwise, be transferred to step a).
Output open hatch door signal to electronic switching circuit 6 control terminal, control electronic switching circuit 6 switch connection,
Open hatch door.
The information content and signal content refer both to the frequency of signal in the present invention.
Microphone signal frequency is consistent inside and outside the cabin of collection, and microphone signal amplitude is more than or equal to Mike in cabin out of my cabin
During wind signal amplitude, the present invention is set as yes interference signal.