CN206251244U - A kind of visual doorbell with duplicate circuitry and the echo function that disappears - Google Patents
A kind of visual doorbell with duplicate circuitry and the echo function that disappears Download PDFInfo
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- CN206251244U CN206251244U CN201621194957.5U CN201621194957U CN206251244U CN 206251244 U CN206251244 U CN 206251244U CN 201621194957 U CN201621194957 U CN 201621194957U CN 206251244 U CN206251244 U CN 206251244U
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Abstract
The utility model discloses a kind of visual doorbell with duplicate circuitry and the echo function that disappears, the visual doorbell includes indoor set, outdoor unit, the indoor set is connected with outdoor unit by wireless signal, MCU processing modules are provided with pcb board in the outdoor unit, the MCU processing modules are connected with duplicate circuitry, the duplicate circuitry is provided with MIC input ports, the MIC input ports are directly connected to MIC output ends or LINE IN output ends, and the MIC input interfaces include MIC_IN_P inputs, MIC_IN_N inputs；The opposite side of the duplicate circuitry is provided with power amplifier input port, signal input port, the power amplifier input port connects power amplifier output end or output end by LINE IN, signal input port connects the upward signal output end of MCU processing modules by LINE OUT.The echo circuit that disappears is provided with duplicate circuitry of the present utility model, effectively can be removed echo by duplicate circuitry of the present utility model, make lamprophonia, can not clearly hear the voice of other side.
Description
Technical field
The utility model is related to doorbell technical field, particularly relates to a kind of with duplicate circuitry and the echo function that disappears
Visual doorbell.
Background technology
In recent years, with building intelligent build the need for, many residential areas all use intelligent construction, doorbell into
It is intelligent building inalienable part, overwhelming majority doorbell uses wired mode now, installs and safeguard very inconvenient, has
Line Doorbell needs planning wiring, it is necessary to put into substantial amounts of manpower and materials, and doorbell safeguards also pretty troublesome, some wireless doorbells, but only
There is doorbell signal, it is impossible to carry out video intercom, it is intelligent relatively low.At present, in the market is wirelessly transferred one-way video, double-directional speech
Transmission product, the technology and the technology of Fundamental Digital Circuit scheme for summing up to have Analogical Electronics scheme.Wherein, electricity is simulated
The technology of sub-circuit scheme is easily interfered due to the communication of its product, complex manufacturing, and properties of product stability difference etc. lacks
Point, has been eliminated substantially.In the product of the Fundamental Digital Circuit solution technique for using, the weak point of generally existing exists
In：Sound carries echo, and echo causes sound to obscure, makes sound unclear.
Utility model content
For deficiency of the prior art, the technical problems to be solved in the utility model there are provided a kind of with duplex
The visual doorbell of circuit and the echo function that disappears.
In order to solve the above technical problems, the utility model is realized by following scheme：One kind has duplicate circuitry and disappears
The visual doorbell of echo function, the visual doorbell includes indoor set, outdoor unit, and the indoor set is with outdoor unit by wireless
Signal connect, MCU processing modules are provided with the pcb board in the outdoor unit, the MCU processing modules be connected with camera assembly,
Infrared LED component, loudspeaker assembly, touch key-press component, radio receiving transmitting module, the MCU processing modules are also associated with duplexing electricity
Road, the duplicate circuitry is provided with MIC input ports, and the MIC input ports are directly connected to MIC output ends or LINE IN outputs
End, the MIC input interfaces include MIC_IN_P inputs, MIC_IN_N inputs；Set in the opposite side of the duplicate circuitry
Power amplifier input port, signal input port are equipped with, the power amplifier input port connects power amplifier output end or output end by LINE IN,
Signal input port connects the upward signal output end of MCU processing modules by LINE OUT, is similarly set on the indoor set
There is duplicate circuitry（2）.
Further, CD1028 chips are connected with the circuit of the duplicate circuitry, the CD1028 chips are echo cancellor
Chip.
Further, be provided with the left of the CD1028 chips MIC0_P pins, MIC0_N pins, MIC1_P pins,
Four pins of MIC1_N pins, four pins are connected to the resistance of 1K, and the other end of each resistance is connected to
0.22 μ F electric capacity, this four electric capacity are respectively electric capacity C101, electric capacity C102, electric capacity C109, electric capacity C113；
The electric capacity C101, the connection of the electric capacity C109 other ends, draw after connection with the MICMIC _ P_L in MCU processing modules
Pin is connected；
The electric capacity C102, the connection of the electric capacity C113 other ends, draw after connection with the MICMIC _ N_L in MCU processing modules
Pin is connected；
The electric capacity C122 of 10nF is connected between electric capacity C109, the input of electric capacity C113.
Further, seven pins are provided with the downside of the CD1028 chips, wherein：
0.22 μ F electric capacity C115, the electric capacity C115 and VSS_ is connected between VSS_CODEC pins and VREF pins
Earth terminal is provided with the circuit node of CODEC pins connection；
LINE_IN_P pins connect 0.22 μ F electric capacity C117, and the other end of the electric capacity C117 is sequentially connected 10K resistance
R128, the other end of 0.22 μ F electric capacity C120, electric capacity C120 connect the OUTL pins of MCU processing modules；The electric capacity C117 with
Circuit between resistance R128 is provided with two nodes, and two nodes are connected to 3.9K resistance R126,10nF electric capacity C119；
LINE_IN_N pins connect the other end connection 3.9K resistance R118 of 0.22 μ F electric capacity C116, the electric capacity C116,
The resistance R118 other ends ground connection, connects the another of electric capacity C119 on the circuit node between electric capacity C116 and resistance R118
End；
LINE_OUT pins connect the other end connection 0R resistance R112 of 4.7 μ F electric capacity C100, the electric capacity C100, resistance
The signal output part of the MIC_P_L of R112 other ends connection MCU processing modules；
Connect 0.22 μ F electric capacity C90, the electric capacity C78 for connecting between VCOM pins and VDD_CODEC pins, two electric capacity it
Between circuit node be connected with earth terminal, be connected with input voltage on the node of circuit between VDD_CODEC pins and electric capacity C78
1.8V。
Further, three pins are provided with the right side of the CD1028 chips, wherein：
The other end ground connection of IRQ_ANA pins connection 100K resistance R114, resistance R114；
XTAL_OUT pins in XTAL_OUT pins connection MCU processing modules；
XTAL_IN pins in XTAL_IN pins connection MCU processing modules.
Further, eight pins are provided with the upside of the CD1028 chips, wherein：
The other end ground connection of TEST pins connection 100K resistance R124, the resistance R124；
PWD pins connection 100K resistance R127, the resistance R127；
The SCL ends of SCK pin connecting interfaces J14；
The SDA ends of SDA pin connecting interfaces J14；
RESET pins connect the RST pins of MCU processing modules, 10K resistance R129,0.22 μ F electric capacity C123 respectively, described
The electric capacity C123 other ends are grounded；
SHI_S pins connect 100K resistance R116, NC resistance R117, the resistance R117 other ends ground connection respectively；
VDD pins connect FBM rectifiers B10,0.22 μ F electric capacity C114 respectively, and the rectifier B10 other ends connection is defeated
Enter power supply 1.8V；
The other end of GND pin connection electric capacity C114, the circuit node between GND pin and electric capacity C114 is connected with ground connection
End；
The resistance R127, resistance R129, the other end connection of resistance R116, connect power supply 1.8V after connection.
Relative to prior art, the beneficial effects of the utility model are：It is provided with duplicate circuitry of the present utility model and is disappeared
Echo circuit, effectively can be removed echo by duplicate circuitry of the present utility model, make lamprophonia, can not heard clearly
The voice of other side.
Brief description of the drawings
Fig. 1 is the utility model MCU processing module circuit diagrams；
Fig. 2 is the upper area enlarged drawing of Fig. 1；
Fig. 3 is the left region enlarged drawing of Fig. 1；
Fig. 4 is the right areas enlarged drawing of Fig. 1；
Fig. 5 is the lower area enlarged drawing of Fig. 1；
Fig. 6 is duplicate circuitry figure；
Fig. 7 is the upper area enlarged drawing of Fig. 6；
Fig. 8 is the left field enlarged drawing of Fig. 6；
Fig. 9 is the right side area enlarged drawing of Fig. 6；
Figure 10 is the lower area enlarged drawing of Fig. 6.
Marked in accompanying drawing：MCU processing modules 1, duplicate circuitry 2.
Specific embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that advantage of the present utility model
Can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to protection domain of the present utility model
Define.
Refer to accompanying drawing 1 ~ 10, a kind of visual doorbell with duplicate circuitry and the echo function that disappears of the present utility model,
The visual doorbell includes indoor set, outdoor unit, and the indoor set is connected with outdoor unit by wireless signal, in the outdoor unit
Pcb board on be provided with MCU processing modules 1, the MCU processing modules 1 are connected with camera assembly, infrared LED component, loudspeaker group
Part, touch key-press component, radio receiving transmitting module, the MCU processing modules 1 are also associated with duplicate circuitry 2, and the duplicate circuitry 2 sets
MIC input ports are equipped with, the MIC input ports are directly connected to MIC output ends or LINE IN output ends, the MIC input interfaces
Including MIC_IN_P inputs, MIC_IN_N inputs；The opposite side of the duplicate circuitry 2 be provided with power amplifier input port,
Signal input port, the power amplifier input port connects power amplifier output end or output end by LINE IN, and signal input port passes through
LINE OUT connect the upward signal output end of MCU processing modules, and CD1028 chips are connected with the circuit of the duplicate circuitry 2,
The CD1028 chips are echo cancellor chip.Duplicate circuitry is similarly provided with the indoor set（2）, indoor set, outdoor unit
After signal connection, during intercommunication, signal of communication will reach the purpose of echo cancellor through CD1028 chips.
MIC0_P pins, MIC0_N pins, MIC1_P pins, MIC1_N pins are provided with the left of the CD1028 chips
Four pins, four pins are connected to the resistance of 1K, and the other end of each resistance is connected to 0.22 μ F electric capacity, this
Four electric capacity are respectively electric capacity C101, electric capacity C102, electric capacity C109, electric capacity C113；
The electric capacity C101, the connection of the electric capacity C109 other ends, draw after connection with the MICMIC _ P_L in MCU processing modules
Pin is connected；
The electric capacity C102, the connection of the electric capacity C113 other ends, draw after connection with the MICMIC _ N_L in MCU processing modules
Pin is connected；
The electric capacity C122 of 10nF is connected between electric capacity C109, the input of electric capacity C113.
Seven pins are provided with the downside of the CD1028 chips, wherein：
0.22 μ F electric capacity C115, the electric capacity C115 and VSS_ is connected between VSS_CODEC pins and VREF pins
Earth terminal is provided with the circuit node of CODEC pins connection；
LINE_IN_P pins connect 0.22 μ F electric capacity C117, and the other end of the electric capacity C117 is sequentially connected 10K resistance
R128, the other end of 0.22 μ F electric capacity C120, electric capacity C120 connect the OUTL pins of MCU processing modules；The electric capacity C117 with
Circuit between resistance R128 is provided with two nodes, and two nodes are connected to 3.9K resistance R126,10nF electric capacity C119；
LINE_IN_N pins connect the other end connection 3.9K resistance R118 of 0.22 μ F electric capacity C116, the electric capacity C116,
The resistance R118 other ends ground connection, connects the another of electric capacity C119 on the circuit node between electric capacity C116 and resistance R118
End；
LINE_OUT pins connect the other end connection 0R resistance R112 of 4.7 μ F electric capacity C100, the electric capacity C100, resistance
The signal output part of the MIC_P_L of R112 other ends connection MCU processing modules；
Connect 0.22 μ F electric capacity C90, the electric capacity C78 for connecting between VCOM pins and VDD_CODEC pins, two electric capacity it
Between circuit node be connected with earth terminal, be connected with input voltage on the node of circuit between VDD_CODEC pins and electric capacity C78
1.8V。
Three pins are provided with the right side of the CD1028 chips, wherein：
The other end ground connection of IRQ_ANA pins connection 100K resistance R114, resistance R114；
XTAL_OUT pins in XTAL_OUT pins connection MCU processing modules；
XTAL_IN pins in XTAL_IN pins connection MCU processing modules.
Eight pins are provided with the upside of the CD1028 chips, wherein：
The other end ground connection of TEST pins connection 100K resistance R124, the resistance R124；
PWD pins connection 100K resistance R127, the resistance R127；
The SCL ends of SCK pin connecting interfaces J14；
The SDA ends of SDA pin connecting interfaces J14；
RESET pins connect the RST pins of MCU processing modules, 10K resistance R129,0.22 μ F electric capacity C123 respectively, described
The electric capacity C123 other ends are grounded；
SHI_S pins connect 100K resistance R116, NC resistance R117, the resistance R117 other ends ground connection respectively；
VDD pins connect FBM rectifiers B10,0.22 μ F electric capacity C114 respectively, and the rectifier B10 other ends connection is defeated
Enter power supply 1.8V；
The other end of GND pin connection electric capacity C114, the circuit node between GND pin and electric capacity C114 is connected with ground connection
End；
The resistance R127, resistance R129, the other end connection of resistance R116, connect power supply 1.8V after connection.
Circuit connection as specified above, duplicate circuitry of the present utility model effectively can remove echo, make voice
Clearly, the voice of other side can not clearly be heard.
Preferred embodiment of the present utility model is the foregoing is only, patent model of the present utility model is not thereby limited
Enclose, equivalent structure or equivalent flow conversion that every utilization the utility model specification and accompanying drawing content are made, or directly or
Connect and be used in other related technical fields, be similarly included in scope of patent protection of the present utility model.
Claims (6)
1. a kind of visual doorbell with duplicate circuitry and the echo function that disappears, the visual doorbell includes indoor set, outdoor unit,
The indoor set is connected with outdoor unit by wireless signal, and MCU processing modules are provided with the pcb board in the outdoor unit（1）,
The MCU processing modules（1）It is connected with camera assembly, infrared LED component, loudspeaker assembly, touch key-press component, wireless receiving and dispatching mould
Block, it is characterised in that：The MCU processing modules（1）It is also associated with duplicate circuitry（2）, the duplicate circuitry（2）It is provided with MIC defeated
Inbound port, the MIC input ports are directly connected to MIC output ends or LINE IN output ends, and the MIC input interfaces include MIC_
IN_P inputs, MIC_IN_N inputs；In the duplicate circuitry（2）Opposite side to be provided with power amplifier input port, signal defeated
Inbound port, the power amplifier input port connects power amplifier output end or output end by LINE IN, and signal input port passes through LINE OUT
The upward signal output end of MCU processing modules is connect, duplicate circuitry is similarly provided with the indoor set（2）.
2. a kind of visual doorbell with duplicate circuitry and the echo function that disappears according to claim 1, it is characterised in that：
The duplicate circuitry（2）Circuit in be connected with CD1028 chips, the CD1028 chips be echo cancellor chip.
3. a kind of visual doorbell with duplicate circuitry and the echo function that disappears according to claim 2, it is characterised in that：
MIC0_P pins, MIC0_N pins, MIC1_P pins, MIC1_N pins four is provided with the left of the CD1028 chips to draw
Pin, four pins are connected to the resistance of 1K, and the other end of each resistance is connected to 0.22 μ F electric capacity, this four electricity
Appearance is respectively electric capacity C101, electric capacity C102, electric capacity C109, electric capacity C113；
The electric capacity C101, the connection of the electric capacity C109 other ends, connect after connection with the MICMIC _ P_L pins in MCU processing modules
Connect；
The electric capacity C102, the connection of the electric capacity C113 other ends, connect after connection with the MICMIC _ N_L pins in MCU processing modules
Connect；
The electric capacity C122 of 10nF is connected between electric capacity C109, the input of electric capacity C113.
4. a kind of visual doorbell with duplicate circuitry and the echo function that disappears according to claim 2, it is characterised in that：
Seven pins are provided with the downside of the CD1028 chips, wherein：
0.22 μ F electric capacity C115 is connected between VSS_CODEC pins and VREF pins, the electric capacity C115 and VSS_CODEC draws
Earth terminal is provided with the circuit node of pin connection；
LINE_IN_P pins connect 0.22 μ F electric capacity C117, the electric capacity C117 the other end be sequentially connected 10K resistance R128,
The other end of 0.22 μ F electric capacity C120, electric capacity C120 connects the OUTL pins of MCU processing modules；The electric capacity C117 and resistance
Circuit between R128 is provided with two nodes, and two nodes are connected to 3.9K resistance R126,10nF electric capacity C119；
LINE_IN_N pins connect the other end connection 3.9K resistance R118 of 0.22 μ F electric capacity C116, the electric capacity C116, described
The resistance R118 other ends are grounded, and the other end of electric capacity C119 is connected on the circuit node between electric capacity C116 and resistance R118；
LINE_OUT pins connect the other end connection 0R resistance R112, resistance R112 of 4.7 μ F electric capacity C100, the electric capacity C100
The signal output part of the MIC_P_L of other end connection MCU processing modules；
0.22 μ F electric capacity C90, the electric capacity C78 for connecting are connected between VCOM pins and VDD_CODEC pins, between two electric capacity
Circuit node is connected with earth terminal, and input voltage is connected with the node of circuit between VDD_CODEC pins and electric capacity C78
1.8V。
5. a kind of visual doorbell with duplicate circuitry and the echo function that disappears according to claim 2, it is characterised in that：
Three pins are provided with the right side of the CD1028 chips, wherein：
The other end ground connection of IRQ_ANA pins connection 100K resistance R114, resistance R114；
XTAL_OUT pins in XTAL_OUT pins connection MCU processing modules；
XTAL_IN pins in XTAL_IN pins connection MCU processing modules.
6. a kind of visual doorbell with duplicate circuitry and the echo function that disappears according to claim 2, it is characterised in that：
Eight pins are provided with the upside of the CD1028 chips, wherein：
The other end ground connection of TEST pins connection 100K resistance R124, the resistance R124；
PWD pins connection 100K resistance R127, the resistance R127；
The SCL ends of SCK pin connecting interfaces J14；
The SDA ends of SDA pin connecting interfaces J14；
RESET pins connect the RST pins of MCU processing modules, 10K resistance R129,0.22 μ F electric capacity C123, the electric capacity respectively
The C123 other ends are grounded；
SHI_S pins connect 100K resistance R116, NC resistance R117, the resistance R117 other ends ground connection respectively；
VDD pins connect FBM rectifiers B10,0.22 μ F electric capacity C114, the rectifier B10 other ends connection input electricity respectively
Source 1.8V；
The other end of GND pin connection electric capacity C114, the circuit node between GND pin and electric capacity C114 is connected with earth terminal；
The resistance R127, resistance R129, the other end connection of resistance R116, connect power supply 1.8V after connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621194957.5U CN206251244U (en) | 2016-10-28 | 2016-10-28 | A kind of visual doorbell with duplicate circuitry and the echo function that disappears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621194957.5U CN206251244U (en) | 2016-10-28 | 2016-10-28 | A kind of visual doorbell with duplicate circuitry and the echo function that disappears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206251244U true CN206251244U (en) | 2017-06-13 |
Family
ID=59000583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621194957.5U Active CN206251244U (en) | 2016-10-28 | 2016-10-28 | A kind of visual doorbell with duplicate circuitry and the echo function that disappears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206251244U (en) |
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2016
- 2016-10-28 CN CN201621194957.5U patent/CN206251244U/en active Active
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