CN209488741U - Building talkback number indoor terminal equipment based on ITE9856 - Google Patents
Building talkback number indoor terminal equipment based on ITE9856 Download PDFInfo
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- CN209488741U CN209488741U CN201920531125.5U CN201920531125U CN209488741U CN 209488741 U CN209488741 U CN 209488741U CN 201920531125 U CN201920531125 U CN 201920531125U CN 209488741 U CN209488741 U CN 209488741U
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Abstract
The building talkback number indoor terminal equipment based on ITE9856 that the utility model discloses a kind of, indoor terminal equipment use fluency height.A kind of building talkback number indoor terminal equipment based on ITE9856, including IT9856 processing module, speech processing module, network communication module, LCD display module, touch key-press module and security alarm module；IT9856 processing module is communicated to connect by I2S and speech processing module；IT9856 processing module and network communication module communicate to connect；IT9856 processing module is communicated to connect by I/O port and security alarm module；IT9856 processing module passes through rgb interface to LCD display module output signal；IT9856 processing module is communicated to connect by I/O port and touch key-press module.
Description
Technical field
The utility model belongs to the technical field of Intelligent building intercom system, concretely relates to a kind of building talkback number
Word indoor terminal equipment.
Background technique
Building conversational system is the resident of residential building cell and the conversational system of outer visitor, for the specification of cell
The safety of management and cell is significant.
Currently, building conversational system includes indoor terminal and outdoor unit, indoor and outdoor configures camera, and indoor terminal configuration is aobvious
Display screen is to show the picture of outdoor generator terminal, to realize video intercom.However, when using building conversational system, on indoor terminal
Picture shown by display screen is not smooth, and the use for reducing building conversational system embodies.
Summary of the invention
The building talkback number indoor terminal equipment based on ITE9856 that the purpose of the utility model is to provide a kind of, it is indoor
Terminal device uses fluency height.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of building talkback number indoor terminal equipment based on ITE9856, including IT9856 processing module, speech processes
Module, network communication module, LCD display module, touch key-press module and security alarm module；IT9856 processing module passes through
I2S and speech processing module communicate to connect；IT9856 processing module and network communication module communicate to connect；IT9856 processing module
It is communicated to connect by I/O port and security alarm module；IT9856 processing module, which is exported by rgb interface to LCD display module, to be believed
Number；IT9856 processing module is communicated to connect by I/O port and touch key-press module.
Preferred embodiment on the basis of above scheme and as above scheme: the touch key-press module includes touching
Screen, touch screen are equipped with 4 touch key-press, are respectively emergency alarm button, key of unlocking, answer key and preview key.
Compared with the prior art, the utility model has prominent and beneficial technical effects that:
The building talkback number indoor terminal equipment of the utility model, uses IT9856 processing module, and dominant frequency is reachable
400MHZ, when using video intercommunication, the LCD picture on indoor terminal shows that fluency is high.
IT9856 processing module can be realized two-way real-time intercommunication with the echo function that disappears.
The communications mode of TCP/IP, strong antijamming capability, wiring are simple.
Detailed description of the invention
Fig. 1 is the structural framing figure of the utility model.
Fig. 2 is the circuit diagram of the analog switch unit of the utility model.
Fig. 3 is the circuit diagram of the dual comparator of the utility model.
Fig. 4 is the circuit diagram of the On-off signal of the utility model.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the attached drawing in embodiment, to reality
The technical solution applied in example is clearly and completely described, it is clear that described embodiment is only that the application a part is implemented
Example, rather than whole embodiments.Based on the embodiment provided, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall in the protection scope of this application.
The building talkback number indoor terminal equipment based on ITE9856 that the utility model discloses a kind of, including IT9856
Processing module, speech processing module, network communication module, LCD display module, touch key-press module and security alarm module.
Wherein, core processing part of the IT9856 processing module as entire building talkback terminal equipment is responsible for entire whole
The data processing of end equipment and the management of state.IT9856 processing module is communicated to connect by I2S and speech processing module.Language
Sound processing module is responsible for the analog acquisition when speech talkback of indoor terminal equipment, the conversion of modulus and digital-to-analogue, echo cancellor.
IT9856 processing module and network communication module communicate to connect；Communication is using ICP/IP protocol, anti-interference energy
Power is strong, and wiring is simple.It is used for transmission the audio, video data encoded by IT9856, control command；It receives and processes and passes through net
Network is transmitted through the audio data come and control command.
IT9856 processing module is communicated to connect by I/O port and security alarm module.IT9856 processing module is connect by RGB
Mouthful to LCD display module output signal.
IT9856 processing module is communicated to connect by I/O port and touch key-press module.
In the present embodiment, the touch key-press module includes touch screen, and touch screen is equipped with 4 touch key-press, point
Not Wei emergency alarm button, key of unlocking, answer key and preview key.
In the present invention, the security alarm module includes analog switch unit, dual comparator unit.
The output end of analog switch unit accesses the successional switching value analog signal of multichannel.
In the present embodiment, switching value analog signal is associated with security device.Security device for example can be smoke alarm,
Hygrosensor, combustible gas probe, curtain-type infrared detector, gate inhibition.Security device has switching value.In switching value
It can get the closed state and off-state of switching value on auxiliary contact.
In one embodiment, switching value includes open type switching value and/or normally closed switch amount.Open type switching value with simultaneously
It is connect through resistance one with operating voltage after connection resistor coupled in parallel, acquires switching value analog signal in the low-voltage end of resistance one.It is normally closed
Type switching value is connect through resistance two with operating voltage after connecting with series resistance, acquires switching value mould in the low-voltage end of resistance two
Quasi- signal.
In the present invention, the branch after open type switching value is in parallel with parallel resistance, switching value are turned by off-state
When changing to closed state, the resistance value of the branch changes, corresponding obtained current potential, the i.e. voltage of switching value analog signal
Value changes.Similarly, the branch after normally closed switch amount is connected with series resistance, switching value are converted to disconnection by closed state
When state, the voltage value of pass amount analog signal changes.
The output end of analog switch unit is electrically connected with the input terminal of dual comparator unit；Dual comparator unit it is defeated
Outlet is electrically connected with processing module.
Wherein, open to the analog switch unit poll every path analoging switch and sequentially one by one by switching value analog signal
Ground is inputted to dual comparator, and switching value analog signal is compared by dual comparator with threshold range, and by comparison result
Obtained voltage signal is transferred to IT9856 processing module through I/O port, when switching value analog signal is beyond in threshold range
When, IT9856 processing module is to network communication module alert.
The analog switch unit includes the chip of model 74HC4051.It is inputted with 8 way switch amounts.In contrast
It answers, one branch of resistance has 8 tunnels, and resistance one is respectively R217, R218, R219, R220, R221, R222, R223, R224.This
Sample correspondingly can access 8 way switch amounts.It should be pointed out that in specific application, can only access all the way or a few roads.
The dual comparator includes twin voltage comparator, the model LM393 of twin voltage comparator, twin voltage comparator
The first reverse side be electrically connected with the output end of analog switch unit, the first in-phase end of twin voltage comparator access first is fixed
Second in-phase end of voltage, twin voltage comparator is electrically connected with the output end of analog switch unit, and the second of twin voltage comparator
Reverse side accesses the second fixed voltage, and the first output end of twin voltage comparator connects positive supply, twin voltage through pull-up resistor R215
The second output terminal of comparator connects positive supply, the first output end and pull-up resistor of twin voltage comparator through pull-up resistor R216
Common end between R215 is electrically connected with the cathode of switching diode D3, the second output terminal and pull-up resistor of twin voltage comparator
Common end between R216 is electrically connected with the cathode of switching diode D4, and the anode of switching diode D3 connects positive electricity through resistance R2
The anode in source, switching diode D4 connects positive supply through pull-up resistor R2, switching diode D3, switching diode D4 and resistance R2 it
Between common end be dual comparator output end.Wherein, the first fixed voltage is greater than the second solid voltage.First fixed voltage and
The range of voltage values of second fixed voltage is threshold range.In one embodiment, resistance R204, resistance R205, resistance R206
After series connection, a termination+5V operating voltage of resistance R204, one end ground connection of resistance R206, in first resistor R204 and resistance
Common end between R205 obtains the first fixed voltage, and the common end between first resistor R205 and resistance R206 obtains second
Fixed voltage.
When switching value analog signal is in threshold range, the output end of dual comparator forms high level；Work as switching value
When analog signal is beyond in threshold range, the output end of dual comparator forms low level.
At work, when the voltage value of switching value analog signal is in the range of the first fixed voltage and the second fixed voltage
When, the first output pin of twin voltage comparator exports high level, switching diode D3 cut-off, the second output of twin voltage comparator
Foot exports high level, switching diode D4 cut-off, and the output end of dual comparator obtains high level.When switching value analog signal
When voltage value is greater than the first fixed voltage, the first output pin output low level of twin voltage comparator, and twin voltage comparator
Second output pin exports high level, in this way, switching diode D3 is connected, and switching diode D4 ends, in dual comparator
Output end obtains low level.When the voltage value of switching value analog signal is less than the second fixed voltage, correspondingly, switching diode
D3 cut-off, and switching diode D4 is connected, and obtains low level in the output end of dual comparator.
The every 100ms of analog switch unit opens every path analoging switch by poll, so that it is outer to detect to allow dual comparator
The state of portion's security device, i.e., when security device is in normal condition, dual comparator exports high level, at security device
When abnormality, the voltage value of dual comparator is inputted not in threshold range, and at this moment dual comparator exports low level.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
It encloses, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by the protection of the utility model
Within the scope of.
Claims (2)
1. a kind of building talkback number indoor terminal equipment based on ITE9856, which is characterized in that handle mould including IT9856
Block, speech processing module, network communication module, LCD display module, touch key-press module and security alarm module；At IT9856
Module is managed to communicate to connect by I2S and speech processing module；IT9856 processing module and network communication module communicate to connect；
IT9856 processing module is communicated to connect by I/O port and security alarm module；IT9856 processing module is aobvious to LCD by rgb interface
Show module output signal；IT9856 processing module is communicated to connect by I/O port and touch key-press module.
2. the building talkback number indoor terminal equipment according to claim 1 based on ITE9856, it is characterised in that: institute
Stating touch key-press module includes touch screen, and touch screen is equipped with 4 touch key-press, is respectively emergency alarm button, unlocks and press
Key answers key and preview key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920531125.5U CN209488741U (en) | 2019-04-18 | 2019-04-18 | Building talkback number indoor terminal equipment based on ITE9856 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920531125.5U CN209488741U (en) | 2019-04-18 | 2019-04-18 | Building talkback number indoor terminal equipment based on ITE9856 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209488741U true CN209488741U (en) | 2019-10-11 |
Family
ID=68135366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920531125.5U Active CN209488741U (en) | 2019-04-18 | 2019-04-18 | Building talkback number indoor terminal equipment based on ITE9856 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209488741U (en) |
-
2019
- 2019-04-18 CN CN201920531125.5U patent/CN209488741U/en active Active
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