CN205541019U - Intelligence brain wave control circuit for lock - Google Patents

Abstract

The utility model discloses an intelligence brain wave control circuit for lock, include and gather and the EEG signal acquisition device of preliminary treatment, the main control chip who goes on controlling to the lock switching drive arrangement by the control lock, the parameter input unit who is connected with main control chip and the display element that carries out synchronization display to the open -closed state that the lock was controlled to the quilt the lock person's of controlling brain wave signals, communicate by letter with EEG signal 3 between EEG signal acquisition device and the main control chip, lock switching drive arrangement is direct current motor, and main control chip and direct current motor's motor -drive circuit are connected, main control chip is chip STM32F103RBT6, and motor -drive circuit is motor drive chip L298N, EEG signal acquisition device is TGAM module or mindwave mobile brain cube earphone. The utility model has the advantages of simple structure and reasonable design and easy and simple to handle, excellent in use effect, because the on and off control of lock is portably accomplished to the brain electrical interface.

Description

A kind of intelligent door lock brain wave control circuit

Technical field

The utility model relates to a kind of control circuit, especially relates to a kind of intelligent door lock brain wave control Circuit processed.

Background technology

Nowadays people focus on person property and the safety of family very much, multiple types occur therewith on market The Anti-theft door and window of type, and the intelligent door lock of supporting correspondence.Existing anti-theft technique, mainly includes following Two kinds: a kind of is conventional antitheft door or coded lock；Another kind is based on fingerprint or speech recognition Safe-guard door lock, be used widely.But existing door lock designs, all there are following three aspects Problem: the first, antitheft instruction must be set manually and could enter anti-theft state, it is impossible to intelligence is anti- Steal；The second, there is potential safety hazard, when such as forgetting counter-locking a door, be easily caused the generation of security incident； 3rd, using user limited, handicapped, group of handicapped can not use.

Based on brain-computer interface technology, being in the development starting stage the most at home, relevant research is also Fewer.Brain wave controls technology and is by mean of the signal of telecommunication that brain sends, and by human-machine interface vocal mimicry Art controls external object.The fields such as brain wave controls technology in biomedicine, computer become in recent years One of hot research come.Traditional subcutaneous E.E.G acquisition method both complexity have inconvenience, are therefore difficult to It is generalized to other field.Increasingly mature along with man-machine excuse technology, E.E.G acquisition technique is also flown Speed development.TGAM (ThinkGear AM) module is that U.S. NeuroSky (god reads science and technology) company is Brain-wave sensor module ASIC designed by general marketplace application, also referred to as TGAM brain electricity module.This TGAM (ThinkGear AM) module can process and export frequency of brain wave spectrum, EEG signals quality, original The eSense parameter of brain wave and three Neurosky: focus, meditation degree (also referred to as allowance) With detecting nictation.Wherein, to indicate user's spirit " flat in meditation degrees of data (also referred to as allowance index) Quiet degree " level or " allowance " level, the scope of this exponential quantity is 0 to 100.TGAM The interface of (ThinkGear AM) module and human body only needs a simple stem grafting contact, it is possible to Apply in toy, video-game and healthy equipment easily, little due to energy consumption again, it is suitable for use in In application with battery powered portable consumer devices.Easy and simple to handle for using, U.S. NeuroSky Company releases a Mindwave Mobile brain cubic earphone, and it can export electroencephalogram original number According to, the E.E.G energy value of 8 wave bands and 2 biofeedback values, 2 biofeedback values are respectively specially Note degree and allowance.Thus, a kind of simple in construction, reasonable in design and easy and simple to handle, use need to be designed Effective intelligent door lock brain wave control circuit, completes the opening and closing lock control of door lock based on brain electrical interface System.

Utility model content

Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to carry For a kind of intelligent door lock brain wave control circuit, its simple in construction, reasonable in design and easy and simple to handle, Using effect is good, completes the open and close controlling of door lock based on brain electrical interface simplicity.

For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of intelligent door lock is used Brain wave control circuit, it is characterised in that: include the eeg signal of door lock manipulator is acquired And pretreatment EEG signals acquisition device, to by control door lock door lock open/close driving device control The parameter input unit that is connected with main control chip of main control chip of system and to the opening and closing shape by control door lock State carries out the display unit of simultaneous display, with nothing between described EEG signals acquisition device and main control chip Line communication mode communicates, and described display unit is connected with main control chip；Described door lock driven for opening and closing Device is direct current generator, and described main control chip is connected with the motor-drive circuit of described direct current generator；Institute Stating main control chip is chip STM32F103RBT6, and described motor-drive circuit is motor drive ic L298N；

Described EEG signals acquisition device is TGAM module or Mindwave Mobile brain cubic earphone, Described TGAM module includes that the EEG signals extracting the EEG signals of door lock manipulator extract dress Put and signal extracted to EEG signals extraction element is sampled and the EEG signals that pre-process are located in advance Reason device, described EEG signals pretreatment unit is connected with EEG signals extraction element, described brain telecommunications Number extraction element includes the current potential on the left of door lock manipulator or frontal lobe district, right side is carried out real-time sampling First electrode for encephalograms and the ear's current potential to door lock manipulator carry out the second brain electricity electricity of real-time sampling Pole and tritencepehalon electricity electrode, described first electrode for encephalograms, the second electrode for encephalograms and tritencepehalon electricity electrode are equal It is connected with EEG signals pretreatment unit.

Above-mentioned a kind of intelligent door lock brain wave control circuit, is characterized in that: also include door lock opening and closing Driving means carries out the remote controller of Non-follow control, with radio communication between described remote controller and main control chip Mode communicates.

Above-mentioned a kind of intelligent door lock brain wave control circuit, is characterized in that: described main control chip and the One wireless communication module connects, and described Mindwave Mobile brain cubic earphone or EEG signals are located in advance Reason device and the second wireless communication module connect, described first wireless communication module and the second radio communication Module is Bluetooth wireless communication module；Described main control chip passes through the first wireless communication module and second Wireless communication module and described Mindwave Mobile brain cubic earphone or EEG signals pretreatment unit Communicate.

Above-mentioned a kind of intelligent door lock brain wave control circuit, is characterized in that: described EEG signals are located in advance Reason device is the TGAM chip of NeuroSky company of U.S. research and development.

Above-mentioned a kind of intelligent door lock brain wave control circuit, is characterized in that: described first electrode for encephalograms The EEG pin of output termination TGAM chip, the output termination TGAM chip of the second electrode for encephalograms REF pin, the EEG_GND pin of the output termination TGAM chip of tritencepehalon electricity electrode.

Above-mentioned a kind of intelligent door lock brain wave control circuit, is characterized in that: the number of described direct current generator Amount is two；PB15, PB14, PB13 and PB12 pin of described chip STM32F103RBT6 divides It is not connected with IN1, IN2, IN3 and IN4 pin of motor drive ic L298N；Described motor drives The OUT1 pin of dynamic chip L298N and OUT2 pin with a described direct current generator two respectively connect Line end connect, the OUT3 pin of described motor drive ic L298N and OUT4 pin respectively with another Two terminals of individual described direct current generator connect.

Above-mentioned a kind of intelligent door lock brain wave control circuit, is characterized in that: also include driving with motor The motor positive and inverse indicating circuit that circuit connects；Described motor positive and inverse indicating circuit includes four luminescences Diode, four described light emitting diodes are respectively light emitting diode L1, L2, L3 and L4；Described The anode of light emitting diode L1 through resistance R3 be followed by motor drive ic L298N OUT2 pin and Its negative electrode connects the OUT1 pin of motor drive ic L298N, light emitting diode L2 and light emitting diode L1 reverse parallel connection；The anode of described light emitting diode L3 is followed by motor drive ic L298N through resistance R4 OUT3 pin and its negative electrode meet the OUT4 pin of motor drive ic L298N, light emitting diode L4 With light emitting diode L3 reverse parallel connection.

The utility model compared with prior art has the advantage that

1, circuit is simple, reasonable in design, easy-to-connect and use easy and simple to handle, using effect good, Can carry out open and close controlling by easy opposite house lock, input cost is relatively low.

2, the EEG signals acquisition device used is that TGAM module or Mindwave Mobile brain stand Side's earphone, it is public that TGAM module or Mindwave Mobile brain cubic earphone are U.S. NeuroSky The finished product product released of department, volume is little, easy-to-connect and use easy and simple to handle.

3, EEG signals acquisition device and main control chip are matched, it is achieved the E.E.G opening and closing control of door lock System, and use easy and simple to handle.

4, simple in construction, reasonable in design and volume is little, main control chip is laid in and is controlled on door lock, And with communication communication between the EEG signals acquisition device and the main control chip that are used, not only Easy and simple to handle, and overall volume is little, occupy little space and be easy to carry.

5, occupation mode is flexible, can realize the E.E.G open and close controlling of door lock, it is not necessary to artificial setting is prevented Steal instruction and could enter anti-theft state, thus intelligent anti-theft can be realized；Further, remote controller can also be passed through Opposite house lock carries out Non-follow control, convenient, safety.

6, use easy and simple to handle and using effect good, open and close controlling, and energy can be carried out by easy opposite house lock Intuitively indicate by the open and-shut mode controlling door lock.Further, practical value is high, can effectively increase Controlled the security performance of door lock, reduced potential safety hazard.Meanwhile, make to be controlled door lock and can meet action Inconvenience, the use demand of group of handicapped.

In sum, the utility model simple in construction, reasonable in design and easy and simple to handle, using effect is good, The open and close controlling of door lock is completed based on brain electrical interface simplicity.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Accompanying drawing explanation

Fig. 1 is schematic block circuit diagram of the present utility model.

Fig. 2 is the circuit theory diagrams of the utility model EEG signals acquisition device.

Fig. 3 is the utility model main control chip and the circuit theory diagrams of the first wireless communication module.

Fig. 4 is the utility model motor-drive circuit and the circuit theory of motor positive and inverse indicating circuit Figure.

Fig. 5 is the circuit theory diagrams of the utility model display unit.

Description of reference numerals:

1 EEG signals acquisition device；1-1 EEG signals extraction element；

1-11 the first electrode for encephalograms；1-12 the second electrode for encephalograms；

1-13 tritencepehalon electricity electrode；1-2 EEG signals pretreatment unit；

2 main control chips；3 door lock open/close driving devices；

4 first wireless communication modules；5 second wireless communication modules；

6 display units；7 motor-drive circuits；8 remote controllers；

9 parameter input unit；10 motor positive and inverse indicating circuits；

11 the 3rd wireless communication modules.

Detailed description of the invention

As shown in Figure 1, Figure 2 and Figure 3, the utility model includes the eeg signal to door lock manipulator The EEG signals acquisition device 1 that is acquired and pre-processes, to being controlled the door lock driven for opening and closing of door lock Parameter input unit 9 that the main control chip 2 that device 3 is controlled is connected with main control chip 2 and right Carried out the display unit 6 of simultaneous display by the open and-shut mode controlling door lock, described EEG signals obtain dress Put and communicate with communication between 1 and main control chip 2, described display unit 6 and master control Chip 2 connects.Described door lock open/close driving device 3 is direct current generator, described main control chip 2 and institute The motor-drive circuit 7 stating direct current generator connects.Described main control chip 2 is chip STM32F103RBT6, described motor-drive circuit 7 is motor drive ic L298N.

Described EEG signals acquisition device 1 is TGAM module or Mindwave Mobile brain cube ear Machine, described TGAM module includes that the EEG signals extracting the EEG signals of door lock manipulator carry Fetching puts 1-1 and the brain that EEG signals the extracted signal of extraction element 1-1 is sampled and pre-processed Signal of telecommunication pretreatment unit 1-2, described EEG signals pretreatment unit 1-2 extract dress with EEG signals Putting 1-1 to connect, described EEG signals extraction element 1-1 includes on the left of door lock manipulator or the volume of right side The current potential in leaf district carries out the first electrode for encephalograms 1-11 of real-time sampling and the ear to door lock manipulator Current potential carries out the second electrode for encephalograms 1-12 and tritencepehalon electricity electrode 1-13 of real-time sampling, and described first Electrode for encephalograms 1-11, the second electrode for encephalograms 1-12 and tritencepehalon electricity electrode 1-13 are all pre-with EEG signals Processing means 1-2 connects.

In the present embodiment, the utility model also includes door lock open/close driving device 3 is carried out Non-follow control Remote controller 8, communicate with communication between described remote controller 8 and main control chip 2.

Further, the utility model also includes the 3rd wireless communication module 11 being connected with main control chip 2, Described remote controller 8 is communicated with main control chip 2 by the 3rd wireless communication module 11.

In the present embodiment, described main control chip 2 is connected with the first wireless communication module 4, described Mindwave Mobile brain cubic earphone or EEG signals pretreatment unit 1-2 and the second radio communication Module 5 connects, described first wireless communication module 4 and the second wireless communication module 5 be bluetooth without Line communication module；Described main control chip 2 is by the first wireless communication module 4 and the second radio communication mold Block 5 is carried out with described Mindwave Mobile brain cubic earphone or EEG signals pretreatment unit 1-2 Communication.

In the present embodiment, described EEG signals acquisition device 1 is TGAM module.Nowadays, the U.S. NeuroSky company has been developed for the TGAM module of finished product, and physical cabling is the easiest.

Time actually used, described EEG signals acquisition device 1 can also be Mindwave Mobile brain Cubic earphone.

Described Mindwave Mobile brain cubic earphone is U.S. NeuroSky (Chinese name: Shen Nianke Skill) company research and development brain cubic earphone.Described brain cubic earphone gathers brain at the forehead of testee The signal of telecommunication (also referred to as brain wave data), described brain cubic earphone includes electrode for encephalograms and connects with electrode for encephalograms The brain wave acquisition chip (such as TGAM module) connect.Described brain cubic earphone can be to gathered brain telecommunications Number carry out pseudo wave, amplification, FFT (Fast Fourier Transform (FFT)) etc. to process, and can be to 50Hz power frequency Interference signal filters.Meanwhile, described brain cubic earphone can also be according to the brain telecommunications currently gathered Number provide the numerical value of focus and meditation degree (also referred to as allowance) accordingly.Thus, this brain cube ear The perfect in shape and function of machine, and use easy and simple to handle.

Grind as in figure 2 it is shown, described EEG signals pretreatment unit 1-2 is NeuroSky company of the U.S. The TGAM chip sent out.

During physical cabling, the EEG of the output termination TGAM chip of described first electrode for encephalograms 1-11 draws Pin, the REF pin of the output termination TGAM chip of the second electrode for encephalograms 1-12, tritencepehalon electricity electrode The EEG_GND pin of the output termination TGAM chip of 1-13.Time actually used, described second brain electricity Electrode 1-12 is reference electrode.

During actually used, the EEG end of described TGAM chip inputs the first electrode for encephalograms 1-11 institute The EEG signals of sampling, the effect of EEG_shiled end is that shielding is adopted at the first electrode for encephalograms 1-11 Interference during this period of time before sample EEG signals input TGAM chip；REF end inputs the second electrode for encephalograms The EEG signals that 1-2 is sampled, ear's EEG signals that the second electrode for encephalograms 1-12 is sampled as Reference potential, can effectively filter out self start type brain wave；REF_shiled end mainly shielding the second brain electricity Interference during this period of time before electrode 1-12 sampled EEG signals input TGAM chip；E.E.G ground wire Also the ear of human body it is connected to, the EEG signals that i.e. tritencepehalon electricity electrode 1-13 is sampled, main Effect is the impact in order to shield the following electric wave of human body head, and such as electrocardio ripple is exactly a kind of stronger Interference ripple, the connection of E.E.G ground wire can effectively filter out electrocardio ripple.It is to say, tritencepehalon electricity electrode 1-13 For gathering the electrode of brain wave ground signalling.

In the present embodiment, the model of described TGAM chip is TGAM1, described first wireless communication module 4 and second wireless communication module 5 be BlueTooth chip.During physical cabling, described TGAM The TXD pin of chip and the RXD pin of the first wireless communication module 4 connect.Described TGAM chip Power end and the VCC pin of TGAM chip all connect+3.3V power end.

As it is shown on figure 3, the VBAT pin of described chip STM32F103RBT6 connects the moon of diode D2 Pole, the anode of diode D2 connects the positive pole of battery BAT1, the minus earth of battery BAT1.Described The NRST pin of chip STM32F103RBT6 ground connection, reset key after reset key KEY_M KEY_M is upper and is connected to electric capacity C1, and the NRST pin of chip STM32F103RBT6 is after resistance R1 Connect+3.3V power end.The VBAT pin of described chip STM32F103RBT6 connects the moon of diode D1 Pole, the anode of diode D1 connects+3.3V power end.

During physical cabling, the PC14 pin of described chip STM32F103RBT6 and PC14 pin are respectively It is connected with two terminals of crystal oscillator Y1, and the PC14 pin of chip STM32F103RBT6 and PC14 Pin ground connection after electric capacity C2 and C3 respectively.The PD0 pin of described chip STM32F103RBT6 and PD1 pin is connected with two terminals of crystal oscillator Y2 respectively, and the PD0 of chip STM32F103RBT6 Pin and PD1 pin ground connection after electric capacity C4 and C5 respectively, on crystal oscillator Y2 and be connected to resistance R2. The VSSA of described chip STM32F103RBT6 is connected with its VDDA pin after drawing foot meridian capacitor C7, On electric capacity C7 and be connected to the VDDA pin of electric capacity C6, chip STM32F103RBT6 after resistance R3 Connect+3.3V power end.The VSS pin ground connection of described chip STM32F103RBT6 and its VDD pin Connect+3.3V power end.

In the present embodiment, as it is shown in figure 5, described display unit 6 is LCDs LCD12864. VSS pin ground connection and its VDD pin of described LCDs LCD12864 connect VCC power end, The VSS pin of described LCDs LCD12864 is connected with one of slide resistor Rz fixing end, The sliding end of slide resistor Rz and another equal ground connection of fixing end.Described VCC power end is+5V Power end.

The PC8 pin of described chip STM32F103RBT6 and PC7 pin respectively with LCDs The RS pin of LCD12864 and R/W pin connect, the PB11 of described chip STM32F103RBT6, PB0, PB2, PB3, PB4, PB5, PB6, PB7, PB8, PB9, PB1 and PB10 pin is respectively Connect the DB0 of LCDs LCD12864, DB1, DB2, DB3, DB4, DB5, DB6, DB7, PSB, NC, E and VEE pin.The PC10 pin of described chip STM32F103RBT6 connects liquid crystal The BLA pin of display screen LCD12864 connects.

During physical cabling, the PC01 pin of described chip STM32F103RBT6 and PC02 pin are respectively It is connected with TXD pin and the RXD pin of the first wireless communication module 4.

In the present embodiment, as shown in Figure 4, the quantity of described direct current generator is two；Described chip PB15, PB14, PB13 and PB12 pin of STM32F103RBT6 respectively with motor drive ic L298N IN1, IN2, IN3 and IN4 pin connect；The OUT1 of described motor drive ic L298N draws Pin and OUT2 pin are connected with two terminals of a described direct current generator respectively, and described motor drives The OUT3 pin of dynamic chip L298N and OUT4 pin respectively with another described two of direct current generator Terminals connect.

Meanwhile, the utility model also includes the motor positive and inverse instruction electricity being connected with motor-drive circuit 7 Road 10；Described motor positive and inverse indicating circuit 10 includes four light emitting diodes, four described luminescences Diode is respectively light emitting diode L1, L2, L3 and L4；The anode warp of described light emitting diode L1 Resistance R3 is followed by the OUT2 pin of motor drive ic L298N and its negative electrode connects motor drive ic The OUT1 pin of L298N, light emitting diode L2 and light emitting diode L1 reverse parallel connection；Described luminescence The anode of diode L3 is followed by OUT3 pin and its moon of motor drive ic L298N through resistance R4 Pole meets the OUT4 pin of motor drive ic L298N, light emitting diode L4 and light emitting diode L3 Reverse parallel connection.

In the present embodiment, two described direct current generators are respectively motor B1 and motor B2.

During physical cabling, the OUT1 pin of described motor drive ic L298N respectively with diode D11 Anode and the negative electrode of diode D15 connect, the OUT2 pin of motor drive ic L298N is respectively It is connected with the anode of diode D10 and the negative electrode of diode D14, motor drive ic L298N's OUT3 pin is connected with the anode of diode D12 and the negative electrode of diode D16 respectively, and motor drives core The OUT4 pin of sheet L298N is connected with the anode of diode D13 and the negative electrode of diode D17 respectively, The negative electrode of diode D10, D11, D12 and D13 all connects VCC power end, diode D14, D15, The equal ground connection of negative electrode of D16 and D17.

During actually used, first pass through parameter input unit 9 and input meditation degree judgment threshold；Lead to again Cross EEG signals acquisition device 1 brain wave signal of door lock manipulator is acquired and automatically exports current The meditation degree M of door lock manipulator under state, and meditation degree M is sent to main control chip 2；Described master After control chip 2 receives the meditation degree M that EEG signals acquisition device 1 is transmitted, by under current state Meditation degree M carry out threshold ratio relatively with the meditation degree judgment threshold pre-entered, and output digit signals 0 or 1；The digital signaling zero or 1 that main control chip 2 is exported by described motor drive ic L298N enters Row receives, and is controlled described direct current generator.Time actually used, described main control chip 2 is one Individual comparison controller, thus any comparator with numerical value comparing function or control chip all can be to masters Control chip 2 substitutes.Time actually used, under current state, the meditation degree M of door lock manipulator is more than During meditation degree judgment threshold, it is believed that being now fatigue state, main control chip 2 controls described direct current generator Carried out closed procedure to controlling door lock, be automatically switched off door lock；Otherwise it is assumed that be now waking state, Main control chip 2 controls described direct current generator and is carried out opening operation, automatic opening door lock to controlling door lock. Thus, when forgetting counter-locking a door, can be locked controlling door lock, safer, intelligent.

The above, be only preferred embodiment of the present utility model, and the utility model is not made any limit System, every according to the utility model technical spirit, above example is made any simple modification, change And equivalent structure change, all still fall within the protection domain of technical solutions of the utility model.

Claims (7)

1. an intelligent door lock brain wave control circuit, it is characterised in that: include door lock manipulator Eeg signal be acquired and pre-process EEG signals acquisition device (1), to by control door The main control chip (2) that is controlled of door lock open/close driving device (3) of lock and main control chip (2) The parameter input unit (9) that connects and carry out the aobvious of simultaneous display to by the open and-shut mode controlling door lock Show unit (6), with wireless between described EEG signals acquisition device (1) and main control chip (2) Communication mode communicates, and described display unit (6) is connected with main control chip (2)；Described door lock Open/close driving device (3) is direct current generator, described main control chip (2) and the electricity of described direct current generator Drive circuit (7) connects；Described main control chip (2) is chip STM32F103RBT6, described Motor-drive circuit (7) is motor drive ic L298N；

Described EEG signals acquisition device (1) is TGAM module or Mindwave Mobile brain cube Earphone, described TGAM module includes the EEG signals extracting the EEG signals of door lock manipulator Extraction element (1-1) and EEG signals extraction element (1-1) extracted signal is sampled and in advance Process EEG signals pretreatment unit (1-2), described EEG signals pretreatment unit (1-2) with EEG signals extraction element (1-1) connects, and described EEG signals extraction element (1-1) includes opposite house The current potential on the left of lock manipulator or frontal lobe district, right side carries out first electrode for encephalograms (1-11) of real-time sampling And ear's current potential of door lock manipulator is carried out second electrode for encephalograms (1-12) and of real-time sampling Three electrode for encephalograms (1-13), described first electrode for encephalograms (1-11), the second electrode for encephalograms (1-12) All it is connected with EEG signals pretreatment unit (1-2) with tritencepehalon electricity electrode (1-13).

2., according to a kind of intelligent door lock brain wave control circuit described in claim 1, its feature exists In: also include the remote controller (8) that door lock open/close driving device (3) is carried out Non-follow control, described Communicate with communication between remote controller (8) and main control chip (2).

3., according to a kind of intelligent door lock brain wave control circuit described in claim 1 or 2, it is special Levy and be: described main control chip (2) is connected with the first wireless communication module (4), described Mindwave Mobile brain cubic earphone or EEG signals pretreatment unit (1-2) and the second wireless communication module (5) Connect, described first wireless communication module (4) and the second wireless communication module (5) be bluetooth without Line communication module；Described main control chip (2) is wireless by the first wireless communication module (4) and second Communication module (5) and described Mindwave Mobile brain cubic earphone or EEG signals pretreatment dress Put (1-2) to communicate.

4., according to a kind of intelligent door lock brain wave control circuit described in claim 1 or 2, it is special Levy and be: described EEG signals pretreatment unit (1-2) is the TGAM of NeuroSky company of U.S. research and development Chip.

5., according to a kind of intelligent door lock brain wave control circuit described in claim 4, its feature exists In: the EEG pin of the output termination TGAM chip of described first electrode for encephalograms (1-11), second The REF pin of the output termination TGAM chip of electrode for encephalograms (1-12), tritencepehalon electricity electrode (1-13) Output termination TGAM chip EEG_GND pin.

6., according to a kind of intelligent door lock brain wave control circuit described in claim 1 or 2, it is special Levy and be: the quantity of described direct current generator is two；The PB15 of described chip STM32F103RBT6, PB14, PB13 and PB12 pin respectively with IN1, IN2, IN3 of motor drive ic L298N and IN4 pin connects；The OUT1 pin of described motor drive ic L298N and OUT2 pin respectively with Two terminals of one described direct current generator connect, the OUT3 of described motor drive ic L298N Pin and OUT4 pin are connected with two terminals of direct current generator another described respectively.

7., according to a kind of intelligent door lock brain wave control circuit described in claim 6, its feature exists In: also include the motor positive and inverse indicating circuit (10) being connected with motor-drive circuit (7)；Institute State motor positive and inverse indicating circuit (10) and include four light emitting diodes, four described light emitting diodes It is respectively light emitting diode L1, L2, L3 and L4；The anode of described light emitting diode L1 is through resistance R3 is followed by the OUT2 pin of motor drive ic L298N and its negative electrode meets motor drive ic L298N OUT1 pin, light emitting diode L2 and light emitting diode L1 reverse parallel connection；Described light-emitting diodes The anode of pipe L3 is followed by the OUT3 pin of motor drive ic L298N and its negative electrode connects through resistance R4 The OUT4 pin of motor drive ic L298N, light emitting diode L4 is reverse with light emitting diode L3 In parallel.