CN203386310U - Doorbell with key lamp function - Google Patents
Doorbell with key lamp function Download PDFInfo
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- CN203386310U CN203386310U CN201320339011.3U CN201320339011U CN203386310U CN 203386310 U CN203386310 U CN 203386310U CN 201320339011 U CN201320339011 U CN 201320339011U CN 203386310 U CN203386310 U CN 203386310U
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The utility model belongs to the digital household field, and provides a doorbell with a key lamp function. A key lamp circuit is integrated in a doorbell system, the key lamp circuit comprises a photoresistor module, a pyroelectric infrared sensor module, a key lamp circuit module, an MCU module and a power supply module, the photoresistor module, the pyroelectric infrared sensor module and the key lamp circuit module are all connected with the MCU module, and the photoresistor module, the pyroelectric infrared sensor module, the key lamp circuit module and the MCU module are all connected with the power supply module. The key lamp function is integrated on the basis of the traditional doorbell according to the technical scheme accomplished by the utility model, when light at a room doorway is relatively low, a key hole is illuminated by light provided by the doorbell, and therefore a proprietor can find the key hole conveniently and accurately to open the door.
Description
Technical field
The utility model relates to doorbell, relates in particular to a kind of doorbell with key lamp function.
Background technology
Common doorbell products on market can be achieved as follows application function: be mainly in the visiting situation of guest, after the guest presses doorbell, the owner can hear doorbell sound in the inside, room, thereby opens the door; The video doorbell product of upgrade version can be achieved as follows application function at present: be mainly in the visiting situation of guest, the owner can visiting guest carry out the audio frequency and video conversation outside the fellow disciple of the inside, room.There is at present a kind of like this demand scene in digital home market: when the owner goes home evening, in the time of need to entering into from the outside the inside, room, if corridor lamp has been gone bad or in the occasion that corridor lamp is not installed, the perhaps darker occasion of corridor lamp, owner's gate, room surrounding environment light darkness, owing to there is no light, can cannot see the accurate location of gate keyhole and the more difficult keyhole that accurately finds opens the door when the owner opens the door, cause therefrom the inconvenience of opening the door.
Summary of the invention
[0003] technical matters that the utility model mainly solves is to provide a kind of doorbell with key lamp function, integrated key lamp function on existing doorbell basis, while having realized that doorway, room light is darker, doorbell provides the light-illuminating keyhole, facilitates the owner accurately to find keyhole to open the door.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of doorbell with key lamp function is provided, wherein, described doorbell comprises the key lamp circuit, this key lamp circuit comprises the photoresistance module, the pyroelectric infrared sensor module, the key lamp circuit module, MCU module and power module, described photoresistance module, the pyroelectric infrared sensor module, the key lamp circuit module all is connected with the MCU module, described photoresistance module, the pyroelectric infrared sensor module, the key lamp circuit module, the MCU module all is connected with described power module.
Further, described power module comprises power supply VCC5V and power supply VCC3V, and power supply VCC5V is the 5V external power supply, the 3.3V conversion electric power of power supply VCC3V for being come by the LDO circuit conversion by described 5V external power supply.
Further, described photoresistance module 11 comprises pull-up resistor R112, photoresistance R113, resistance R 33, the end of pull-up resistor R112 is connected with the power supply VCC3V in power module, the end of the other end of R112 and photoresistance R113 is connected and is connected with an end of resistance R 33, the other end of R113 is connected with signal ground, the other end of R33 is connected to the 26th pin of MCU module, pull-up resistor and photoresistance voltage division signal between the two is connected to the MCU module, for judging the brightness situation of surrounding enviroment.
Further, described pyroelectric infrared sensor module comprises interconnective pyroelectric infrared sensor and Chip for Pyroelectric Infrared Sensor Controller, Chip for Pyroelectric Infrared Sensor Controller is provided with one for exporting the pin of look-at-me, this pin is connected to a pin of MCU module, in order to judge whether that by this look-at-me someone passes through.
Described pyroelectric infrared sensor module comprises pyroelectric infrared sensor U9, Chip for Pyroelectric Infrared Sensor Controller JP2, resistance R 96, resistance R 101, capacitor C 80, resistance R 92, capacitor C 76, resistance R 87, resistance R 88, resistance R 89, resistance R 99, the 14th pin of pyroelectric infrared sensor U9 is connected to an end of resistance R 96, the other end of resistance R 96 is connected to the IR pin of Chip for Pyroelectric Infrared Sensor Controller JP2, the other end is also connected to an end of resistance R 101 and an end of capacitor C 80, the other end of the other end of resistance R 101 and capacitor C 80 all is connected with signal ground, the end of the VCC pin contact resistance R92 of JP2, the other end of resistance R 92 connects an end of capacitor C 76 and an end of resistance R 87, the other end of capacitor C 76 is connected to signal ground, and the other end of resistance R 87 is connected with the power supply VCC3V in power module 16, and the GND pin of JP2 is connected with signal ground, the 9th pin of U9 is connected to an end of resistance R 88, the other end of resistance R 88 is connected with the power supply VCC3V in power module 16, the 8th pin of U9 is connected to an end of resistance R 89, the other end of resistance R 89 is connected with the power supply VCC3V in power module 16, the 2nd pin of U9 is exported look-at-me IR_INT and is connected to an end of resistance R 99, and the other end of resistance R 99 is connected to the 10th pin of MCU module.
Further, described key lamp circuit module comprises at least one key lamp circuit unit, described key lamp circuit unit comprises control signal and key lamp, the input end of described control signal is connected with a pin of MCU module, the output terminal of control signal is connected with key lamp, for the unlatching of controlling the LED lamp or close.
More preferably, in described key lamp circuit module, comprise two key lamp circuit units, in first key lamp circuit unit, specifically comprise resistance R 110, triode Q8, resistance R 109, resistance R 105, triode Q6, magnetic bead B13, power supply VCC5V, storage capacitor C85, key lamp LED4, current-limiting resistance R111, control signal LLED_ON extracts for the 14th pin of the single-chip microcomputer U6 from the MCU module, the 14th pin of U6 is connected to an end of resistance R 110, the other end of resistance R 110 is connected to the B utmost point of triode Q8, the emitter of triode Q8 is connected to signal ground, the C utmost point of triode Q8 is connected to an end of resistance R 109, the other end of resistance R 109 is connected to an end of resistance R 105, and the B utmost point that is connected to triode Q6, the other end of resistance R 105 is connected to the end of magnetic bead B13, the other end of magnetic bead B13 is connected to power supply VCC5V, the 3rd pin of triode Q6 is connected to the end of storage capacitor C85 and the anodal pin two of key lamp LED4, the other end of storage capacitor C85 is connected to signal ground, the negative pole pin one of key lamp LED4 is connected to the end of current-limiting resistance R111, the other end of current-limiting resistance R111 is connected to the gnd signal, in second key lamp circuit unit, specifically comprise resistance R 107, triode Q7, resistance R 106, resistance R 104, triode Q5, magnetic bead B12, power supply VCC5V, storage capacitor C84, key lamp LED3, current-limiting resistance R108, control signal RLED_ON extracts for the 1st pin of the single-chip microcomputer U6 from the MCU module, the 1st pin of single-chip microcomputer U6 is connected to an end of resistance R 107, the other end of resistance R 107 is connected to the B utmost point of triode Q7, the emitter of triode Q7 is connected to signal ground, the C utmost point of triode Q7 is connected to an end of resistance R 106, the other end of resistance R 106 is connected to the B level of an end and the triode Q5 of resistance R 104, the other end of resistance R 104 is connected to the end of magnetic bead B12, the other end of magnetic bead B12 is connected to power supply VCC5V, the C utmost point of triode Q5 is connected to an end of capacitor C 84 and the anodal pin two of key lamp LED3, the other end of storage capacitor C84 is connected to signal ground, the negative pole pin one of key lamp LED3 is connected to the end of current-limiting resistance R108, and the other end of current-limiting resistance R108 is connected to signal ground.
More preferably, described key lamp circuit also comprises key control module, and this key control module is connected with a pin of MCU module.
Further, described key control module comprises 1 button, resistance R 49, resistance R 37, capacitor C 45, the 19th pin of described MCU module is connected to an end of resistance R 49 and an end of resistance R 37, the other end of resistance R 37 is connected to the power supply VCC3V of power module 16, the other end of resistance R 49 is connected to pin one and the pin two of button, the other end of resistance R 49 is also connected to an end of capacitor C 45, the other end of capacitor C 45 is connected to pin 3 and the pin 4 of button, and the other end of capacitor C 45 is also connected to signal ground.
The beneficial effects of the utility model are: by the technical program, and integrated key lamp function on existing video doorbell basis, while having realized that doorway, room light is darker, doorbell provides the light-illuminating keyhole, facilitates the owner accurately to find keyhole to open the door.
The accompanying drawing explanation
Fig. 1 is the integrated circuit structural representation of key lamp circuit described in the utility model.
Fig. 2 is the physical circuit connection layout of key lamp circuit described in the utility model.
Fig. 3 is the circuit diagram of photoresistance module described in the utility model.
Fig. 4 is the circuit diagram of pyroelectric infrared sensor module described in the utility model.
Fig. 5 is the circuit diagram of left and right described in the utility model key lamp circuit module.
Fig. 6 is the circuit diagram of MCU module described in the utility model.
Fig. 7 is the circuit diagram of power module described in the utility model.
Embodiment
By describing technology contents of the present utility model, structural attitude in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1 and 2, the utility model provides a kind of doorbell with key lamp function, wherein, described doorbell comprises key lamp circuit 1, and this key lamp circuit comprises photoresistance module 11, pyroelectric infrared sensor module 12, key lamp circuit module 13, MCU module 14, key control module 15 and power module 16; Described photoresistance module 11, pyroelectric infrared sensor module 12,13 of key lamp circuit moulds and key-press module 15 all are connected with MCU module 14, and described photoresistance module 11, pyroelectric infrared sensor module 12, key lamp circuit module 13, MCU module 14, key control module 15 all are connected with described power module 16.
Refer to Fig. 7, described power module 16 comprises power supply VCC5V and power supply VCC3V, and power supply VCC5V is the 5V external power supply, and power supply VCC3V is the 3.3V conversion electric power, and the 3.3V conversion electric power is come by the LDO circuit conversion by above-mentioned 5V external power supply.For the video doorbell product circuit, generally all adopt the power supply of 5V to access power supply as outside, for the doorbell products common source, the power supply of key lamp is also selected the 5V power supply, this power supply accesses from outside, in circuit, also needs the 3.3V power supply of using to realize by above-mentioned LDO circuit.
Refer to Fig. 3, described photoresistance module 11 comprises pull-up resistor R112, photoresistance R113, resistance R 33, the end of pull-up resistor R112 is connected with the power supply VCC3V in power module 6, the end of the other end of R112 and photoresistance R113 is connected and is connected with an end of resistance R 33, the other end of R113 is connected with signal ground, the other end of R33 is connected to the 26th pin of MCU module, simulates AD sampling pin.In this circuit module, the resistance that R112 is 100K, on move 3.3V to, be connected to the MCU module after the end that the pull-up resistor R112 of series connection and photoresistance R113 voltage division signal R_ADJ between the two are connected to resistance R 33, resistance R 113 is the more common photoresistance GL5528 of industry, when surrounding environment light is bright, photoresistance R113 resistance is less, thereby the magnitude of voltage of voltage division signal R_ADJ is smaller; In the time of surrounding environment light darkness, the resistance of resistance R 113 is very large, thereby the magnitude of voltage of voltage division signal R_ADJ can become greatly, so produce the R_ADJ signal; The R_ADJ signal is connected to the simulation AD sampling pin of MCU module, coordinate like this MCU software just can be easy to read out the magnitude of voltage of this signal, thereby the light of judgement surrounding enviroment is bright or dark.
Refer to Fig. 4, described pyroelectric infrared sensor module 12 comprises pyroelectric infrared sensor U9, Chip for Pyroelectric Infrared Sensor Controller JP2, resistance R 96, resistance R 101, capacitor C 80, resistance R 92, capacitor C 76, resistance R 87, resistance R 88, resistance R 89, resistance R 99, the 14th pin of pyroelectric infrared sensor U9 is connected to an end of resistance R 96, the other end of resistance R 96 is connected to the IR pin of Chip for Pyroelectric Infrared Sensor Controller JP2, the other end is also connected to an end of resistance R 101 and an end of capacitor C 80, the other end of the other end of resistance R 101 and capacitor C 80 all is connected with signal ground, the end of the VCC pin contact resistance R92 of JP2, the other end of resistance R 92 connects an end of capacitor C 76 and an end of resistance R 87, the other end of capacitor C 76 is connected to signal ground, and the other end of resistance R 87 is connected with the power supply VCC3V in power module 16, and the GND pin of JP2 is connected with signal ground, the 9th pin of U9 is connected to an end of resistance R 88, the other end of resistance R 88 is connected with the power supply VCC3V in power module 16, the 8th pin of U9 is connected to an end of resistance R 89, the other end of resistance R 89 is connected with the power supply VCC3V in power module 16, the 2nd pin of U9 is exported look-at-me IR_INT and is connected to an end of resistance R 99, the other end of resistance R 99 is connected to the 10th pin of MCU module, and the 2nd pin of U9 is for exporting the pin of look-at-me IR_INT, wherein, JP2 is general pyroelectric infrared sensor LHI778, U9 is Chip for Pyroelectric Infrared Sensor Controller BISS0001, the circuit function of this module is: in the time of within the sensing scope that human body process sensor LHI778 is arranged, the 2nd pin pin2 of U9 can export the IR_INT look-at-me, this look-at-me of IR_INT is connected to the interrupting input pin of MCU module, coordinates like this MCU software just can be easy to judge whether someone passes through.
Described key lamp circuit module 13 comprises at least one key lamp circuit unit, and described key lamp circuit unit comprises control signal and key lamp, and the input end of described control signal is connected with a pin of MCU module, and the output terminal of control signal is connected with key lamp.
Particularly, refer to Fig. 5, in described key lamp circuit module, comprise two key lamp circuit units, be called key lamp unit, left and right, wherein, RLED_ON and LLED_ON represent the control signal of two key lamps; These 2 signals are controlled by the MCU module; The power white-light emitting pipe (LED) that wherein key lamp LED3 and LED4 are 0.5W; Just can the luminous key hole through the white light LEDs of inventor's site assessment 0.5W; If adopt the white light power LED light of 0.5W still bright not under actual environment, can change more high-power LED into.
In first key lamp circuit unit, specifically comprise resistance R 110, triode Q8, resistance R 109, resistance R 105, triode Q6, magnetic bead B13, power supply VCC5V, storage capacitor C85, key lamp LED4, current-limiting resistance R111, the resistance that resistance R 110 and resistance R 109 are 1k ohm, triode Q8 is the NPN triode that model is 2N3904, triode Q6 is the PNP triode that model is FHT8550, the model of key lamp LED4 is XH854, the resistance that current-limiting resistance R111 is 20 ohm, current-limiting resistance R111 flows through the electric current of key lamp LED4 within the scope of its permission for restriction.
The LLED_ON signal extracts for the 14th pin of the single-chip microcomputer U6 from the MCU module, the 14th pin of U6 is connected to an end of resistance R 110, the other end of resistance R 110 is connected to the B utmost point of triode Q8, the emitter of triode Q8 is connected to signal ground, the C utmost point of triode Q8 is connected to an end of resistance R 109, the other end of resistance R 109 is connected to an end of resistance R 105, and the B utmost point that is connected to triode Q6, the other end of resistance R 105 is connected to the end of magnetic bead B13, the other end of magnetic bead B13 is connected to power supply VCC5V, the C utmost point of triode Q6 is connected to the end of storage capacitor C85 and the anodal pin two of key lamp LED4, the other end of storage capacitor C85 is connected to signal ground, the negative pole pin one of key lamp LED4 is connected to the end of current-limiting resistance R111, the other end of current-limiting resistance R111 is connected to signal ground.
The logic of this circuit is as follows: when the 14th pin of the single-chip microcomputer U6 in the MCU module is exported high level, now the LLED_ON signal is high level, this signal enters the B utmost point of triode Q8 after resistance R 110, now triode Q8 conducting, one end of resistance R 109 is moved low level to, triode Q6 conducting, now the anodal pin two of key lamp LED4 is high level, because the bias voltage of XH854 is the 3.3V left and right, the bias voltage of current-limiting resistance R111 is the 1.7V left and right so, so resistance that the R111 that we select here is 20 ohm, in order to being set, the electric current of flow through key lamp LED4 and current-limiting resistance R111 is approximately 85 milliamperes, can regulate by adjusting resistance the brightness of key lamp in actual design, and when the 14th pin output low level of the single-chip microcomputer U6 in the MCU module, now the LLED_ON signal is low level, this signal enters the B level of triode Q8 after resistance R 110, now triode Q8 disconnects, resistance R 109 is high level, triode Q6 disconnects, and now the anodal pin two of key lamp LED4 is low level, and key lamp LED4 can be not shinny.
In second key lamp circuit unit, specifically comprise resistance R 107, triode Q7, resistance R 106, resistance R 104, triode Q5, magnetic bead B12, storage capacitor C84, key lamp LED3, current-limiting resistance R108.The resistance that resistance R 107 and resistance R 106 are 1k ohm, triode Q7 is the NPN triode that model is 2N3904, triode Q5 is the PNP triode that model is FHT8550, magnetic bead B12, storage capacitor C84 act as energy storage, the model of key lamp LED3 is XH854, and the effect of current-limiting resistance R108 is that restriction is flow through the electric current of key lamp LED3 within the scope of its permission.
The RLED_ON signal extracts for the 1st pin of the single-chip microcomputer U6 from the MCU module, the 1st pin of single-chip microcomputer U6 is connected to an end of resistance R 107, the other end of resistance R 107 is connected to the B utmost point of triode Q7, the emitter of triode Q7 is connected to signal ground gnd, the C utmost point of triode Q7 is connected to an end of resistance R 106, the other end of resistance R 106 is connected to the B level of an end and the triode Q5 of resistance R 104, the other end of resistance R 104 is connected to the end of magnetic bead B12, and the other end of magnetic bead B12 is connected to power supply VCC5V; The C utmost point of triode Q5 is connected to an end of capacitor C 84 and the anodal pin two of key lamp LED3, the other end of storage capacitor C84 is connected to signal ground, it is the gnd signal, the negative pole pin one of key lamp LED3 is connected to the end of current-limiting resistance R108, and the other end of current-limiting resistance R108 is connected to signal ground gnd.The logic of the circuit of this second key lamp circuit unit, with first key lamp circuit unit, does not repeat them here.
Described key control module 15 comprises button, resistance R 49, resistance R 37, capacitor C 45, button is connected with a pin of MCU module, and this button comprises can arrange in conjunction with the common software of MCU that left side key lamp is opened, the right key lamp is opened, two key lamps are opened simultaneously or two key lamps open function not.Refer to Fig. 6, the 19th pin pin19 of MCU module is connected to an end of resistance R 49 and an end of resistance R 37, the other end of resistance R 37 is connected to the power supply VCC3V of power module 16, the other end of resistance R 49 is connected to pin one and the pin two of button, the other end of resistance R 49 is also connected to an end of capacitor C 45, the other end of capacitor C 45 is connected to pin 3 and the pin 4 of button, and the other end of capacitor C 45 is also connected to signal ground.The user can simply arrange by the button of this key control module, will open left side key lamp or the right key lamp such as arranging, or the key lamp on both sides is all opened.The method for designing adopted such as the inventor is: after this product switches on power, if the user is long by this button once (duration that pushes button unclamps after being greater than 3 seconds) be set to, under the dark condition of environment, when having the user to pass through, can open left side key lamp; If grow by twice of this button continuously be set to open the right key lamp; If grow by this button three times continuously be set to the right and left key lamp, can open; Not have after if power on to grow by the action of this button two key lamps of default setting are not opened.
Refer to Fig. 6, in described MCU module, U6 is singlechip chip N79E814A, needs the corresponding program of programming just can complete associative operation, and this MCU program comparision is general simple.The 1st pin pin1 of this chip is connected to the RLED_ON signal of key lamp circuit module 13, for the unlatching of controlling one of them key lamp or close; The 14th pin pin14 is connected to the LLED_ON signal of right key lamp circuit module, for the unlatching of controlling another key lamp or close; The 10th pin pin10 is connected to the IR_INT look-at-me of pyroelectric infrared sensor module 12, in order to judge whether that by this look-at-me someone passes through; The 26th pin PIN26 is connected to the R_ADJ signal of photoresistance module 11 after by resistance R 33, for judging the brightness situation of surrounding enviroment.The 21st pin of U6 is connected to power supply VCC3V.
In the utility model, described doorbell can be located on entry door, and be positioned at the top of the key of entry door, the direction of illumination of described key lamp LED4 and key lamp LED3 points to the position of key, the 1st pin of U6 in described MCU module is connected to the control signal RLED_ON of key lamp circuit module, the 14th pin is connected to the control signal LLED_ON of key lamp circuit module, the 10th pin is connected to the look-at-me IR_INT of pyroelectric infrared sensor module, the 26th pin is connected to the voltage division signal R_ADJ of photoresistance module after by resistance R 33, the 21st pin of U6 is connected to power supply VCC3V, by photosensitive circuit module 11 in conjunction with MCU module 14, can judge the light situation of key lamp region environment, in conjunction with MCU module 14, can judge whether someone passes through in the key lamp region by pyroelectric infrared sensor module 12, just can open or close 2 0.5W power key lamps by the key lamp circuit module 13 that is laid in the left and right on doorbell in conjunction with MCU module 14 and key control module 15, break down or the occasion of corridor lamp more secretly or not is installed when corridor lamp thereby solved, when the owner goes home evening, due to place, house gate light darkness, thereby cannot see the position of gate keyhole and the problem of being inconvenient to open the door.
Technique effect of the present utility model is:
1. design the photoresistance circuit module on doorbell products, detect the light situation of place, house gate environment;
2. design pyroelectric infrared sensor module on doorbell products just can automatically detect when having the people to approach;
3. design key lamp circuit module on doorbell products, when ambient light is dark and have in the close situation of people, can open key lamp and illuminate the position of gate keyhole to facilitate the owner to open the door;
In general the installation site of doorbell products on side, house gate or be arranged on gate; Which direction that may be arranged on the gate keyhole in actual installation does not have determinacy, so we have designed two key lamps; Then these 2 key lamps are arranged on to the shell left and right sides of doorbell products;
5. for the doorbell products circuit, generally all can use the power supply of 5V; We do design with the power supply of 5V as the outside access power supply of this circuit.
Doorbell described in the utility model can be also common doorbell or video doorbell.Key lamp circuit described in the utility model also can be applied in separately the upper or door of door near.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model instructions and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (10)
1. the doorbell with key lamp function, it is characterized in that: described doorbell comprises the key lamp circuit, this key lamp circuit comprises photoresistance module, pyroelectric infrared sensor module, key lamp circuit module, MCU module and power module, described photoresistance module, pyroelectric infrared sensor module, key lamp circuit module all are connected with the MCU module, and described photoresistance module, pyroelectric infrared sensor module, key lamp circuit module, MCU module all are connected with described power module.
2. the doorbell with key lamp function according to claim 1, it is characterized in that: described power module comprises power supply VCC5V and power supply VCC3V, power supply VCC5V is the 5V external power supply, the 3.3V conversion electric power of power supply VCC3V for being come by the LDO circuit conversion by described 5V external power supply.
3. the doorbell with key lamp function according to claim 2, it is characterized in that: described photoresistance module (11) comprises pull-up resistor R112, photoresistance R113, resistance R 33, the end of pull-up resistor R112 is connected with the power supply VCC3V in power module (16), the end of the other end of R112 and photoresistance R113 is connected and exports a voltage division signal R_ADJ and is connected with an end of resistance R 33, the other end of R113 is connected with signal ground, and the other end of R33 is connected to the 26th pin of MCU module.
4. the doorbell with key lamp function according to claim 1 and 2, it is characterized in that: described pyroelectric infrared sensor module comprises interconnective pyroelectric infrared sensor and Chip for Pyroelectric Infrared Sensor Controller, Chip for Pyroelectric Infrared Sensor Controller is provided with one for exporting the pin of look-at-me, and this pin is connected to a pin of MCU module.
5. the doorbell with key lamp function according to claim 4, it is characterized in that: described pyroelectric infrared sensor module comprises pyroelectric infrared sensor U9, Chip for Pyroelectric Infrared Sensor Controller JP2, resistance R 96, resistance R 101, capacitor C 80, resistance R 92, capacitor C 76, resistance R 87, resistance R 88, resistance R 89, resistance R 99, the 14th pin of pyroelectric infrared sensor U9 is connected to an end of resistance R 96, the other end of resistance R 96 is connected to the IR pin of Chip for Pyroelectric Infrared Sensor Controller JP2, the other end is also connected to an end of resistance R 101 and an end of capacitor C 80, the other end of the other end of resistance R 101 and capacitor C 80 all is connected with signal ground, the end of the VCC pin contact resistance R92 of JP2, the other end of resistance R 92 connects an end of capacitor C 76 and an end of resistance R 87, the other end of capacitor C 76 is connected to signal ground, the other end of resistance R 87 is connected with the power supply VCC3V in power module (16), and the GND pin of JP2 is connected with signal ground, the 9th pin of U9 is connected to an end of resistance R 88, the other end of resistance R 88 is connected with the power supply VCC3V in power module (16), the 8th pin of U9 is connected to an end of resistance R 89, the other end of resistance R 89 is connected with the power supply VCC3V in power module (16), the 2nd pin of U9 is exported a look-at-me IR_INT and is connected to an end of resistance R 99, and the other end of resistance R 99 is connected to the 10th pin of MCU module.
6. the doorbell with key lamp function according to claim 1 and 2, it is characterized in that: described key lamp circuit module comprises at least one key lamp circuit unit, described key lamp circuit unit comprises control signal and key lamp, the input end of described control signal is connected with a pin of MCU module, and the output terminal of control signal is connected with key lamp.
7. the doorbell with key lamp function according to claim 6, it is characterized in that: in described key lamp circuit module, comprise two key lamp circuit units, in first key lamp circuit unit, specifically comprise resistance R 110, triode Q8, resistance R 109, resistance R 105, triode Q6, magnetic bead B13, power supply VCC5V, storage capacitor C85, key lamp LED4, current-limiting resistance R111, one control signal LLED_ON extracts for the 14th pin of the single-chip microcomputer U6 from the MCU module, the 14th pin of U6 is connected to an end of resistance R 110, the other end of resistance R 110 is connected to the B utmost point of triode Q8, the emitter of triode Q8 is connected to signal ground, the C utmost point of triode Q8 is connected to an end of resistance R 109, the other end of resistance R 109 is connected to an end of resistance R 105, and the B utmost point that is connected to triode Q6, the other end of resistance R 105 is connected to the end of magnetic bead B13, the other end of magnetic bead B13 is connected to power supply VCC5V, the 3rd pin of triode Q6 is connected to the end of storage capacitor C85 and the anodal pin two of key lamp LED4, the other end of storage capacitor C85 is connected to signal ground, the negative pole pin one of key lamp LED4 is connected to the end of current-limiting resistance R111, the other end of current-limiting resistance R111 is connected to signal ground, in second key lamp circuit unit, specifically comprise resistance R 107, triode Q7, resistance R 106, resistance R 104, triode Q5, magnetic bead B12, power supply VCC5V, storage capacitor C84, key lamp LED3, current-limiting resistance R108, another control signal RLED_ON extracts for the 1st pin of the single-chip microcomputer U6 from the MCU module, the 1st pin of single-chip microcomputer U6 is connected to an end of resistance R 107, the other end of resistance R 107 is connected to the B utmost point of triode Q7, the emitter of triode Q7 is connected to signal ground, the C utmost point of triode Q7 is connected to an end of resistance R 106, the other end of resistance R 106 is connected to the B level of an end and the triode Q5 of resistance R 104, the other end of resistance R 104 is connected to the end of magnetic bead B12, the other end of magnetic bead B12 is connected to power supply VCC5V, the C utmost point of triode Q5 is connected to an end of capacitor C 84 and the anodal pin two of key lamp LED3, the other end of storage capacitor C84 is connected to signal ground, the negative pole pin one of key lamp LED3 is connected to the end of current-limiting resistance R108, and the other end of current-limiting resistance R108 is connected to signal ground.
8. the doorbell with key lamp function according to claim 1 and 2, it is characterized in that: described key lamp circuit also comprises key control module, this key control module is connected with a pin of MCU module.
9. the doorbell with key lamp function according to claim 8, it is characterized in that: described key control module comprises 1 button, resistance R 49, resistance R 37, capacitor C 45, the 19th pin of described MCU module is connected to an end of resistance R 49 and an end of resistance R 37, the other end of resistance R 37 is connected to the power supply VCC3V of power module (16), the other end of resistance R 49 is connected to pin one and the pin two of button, the other end of resistance R 49 is also connected to an end of capacitor C 45, the other end of capacitor C 45 is connected to pin 3 and the pin 4 of button, the other end of capacitor C 45 is also connected to signal ground.
10. the doorbell with key lamp function according to claim 7, it is characterized in that: described doorbell is located on entry door, and is positioned at the top of the key of entry door, and the direction of illumination of described key lamp LED4 and key lamp LED3 points to the position of key.
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| CN201320339011.3U CN203386310U (en) | 2013-06-14 | 2013-06-14 | Doorbell with key lamp function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320339011.3U CN203386310U (en) | 2013-06-14 | 2013-06-14 | Doorbell with key lamp function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594756A (en) * | 2014-11-27 | 2015-05-06 | 苏州福丰科技有限公司 | Safe box based on human ear recognition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594756A (en) * | 2014-11-27 | 2015-05-06 | 苏州福丰科技有限公司 | Safe box based on human ear recognition |
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