CN206350076U - A kind of Android visible dialogue systems - Google Patents

Abstract

The utility model discloses an Android visual intercom system, which comprises a visual intercom system controlled based on the Android system. The visual intercom system includes an indoor unit multimedia control unit, a background data processing center and an outdoor door unit. Each unit is connected and communicated by a network cable. The multimedia control unit of the indoor unit includes a smart camera and a camera drive unit for driving the smart setting head. The smart camera is installed indoors, and the outdoor outdoor unit is connected to Wireless Router. The utility model uses a visual intercom system (including a sip server) as a technical platform, transmits audio and video streams, real-time command strings, and message texts on the platform, and gradually expands functions such as security and home appliance control. The smart camera needs to use a third-party server for remote communication, or it can ignore the server and only use it in the local area network.

Description

An Android video intercom system

technical field

The utility model relates to the field of intelligent building intercom, in particular to an Android visual intercom system.

Background technique

With the continuous improvement of the living standards of the people, the building intercom system or building intercom has become a standard supporting facility for modern residences. The traditional building video intercom system, also known as video intercom or video doorbell, is a communication device in residential buildings. The intercom system is usually divided into two parts, one part is indoor equipment, which is installed in residential buildings, and is used to answer incoming calls, display and monitor and control unlocking; the other part is outdoor equipment, usually with keyboard, display, camera and door lock drive . To put it simply, it is an electronic door lock with intercom function installed on the door of a residential unit. Users can communicate with visitors through the building intercom system, and identify the identity of the visitor through the camera screen, and then judge The main purpose of whether the door of the residential unit is opened or not is to prevent strangers from entering the residence, etc.

The functions of the products in the prior art are relatively single, and special lines and separate power supply need to be laid in advance during installation. The quality of the picture and sound during the intercom is not high, and the call record cannot be kept. If the user goes out, the user cannot know the visit of relatives and friends, and cannot return to visit afterwards, which will affect the interpersonal relationship. If a thief breaks in, there is no way to warn, which will easily cause property damage.

Contents of the invention

The technical problem to be solved by the utility model is to provide a device that can know the abnormal situation indoors and outdoors anytime and anywhere through the Internet technology and can remotely control it, which is convenient, reliable and safe to use.

The utility model is realized through the following technical solutions: an Android visual intercom system, comprising a visual intercom system controlled based on the Android system, the visual intercom system comprising an indoor unit multimedia control unit, a background data processing Center and outdoor outdoor station, each unit is connected and communicated by a network cable, the multimedia control unit of the indoor station and the outdoor outdoor station both include a smart camera and a camera drive unit for driving the smart setting head to work, the indoor unit and the outdoor station The outdoor unit is installed indoors and outdoors respectively. It is connected to the wireless router through wired or wireless, and the wireless router is connected to the ZIGBEE gateway. The mobile terminal controls the video intercom system through the background data processing center, and the outdoor outdoor unit is connected to the wireless router through wired or wireless. .

As a preferred technical solution, the indoor unit multimedia control unit is a building intercom indoor unit, which includes a main control unit, a network communication unit, a POE power supply unit, a PMU power management unit, an LCD display drive unit, a touch screen drive unit, and a camera Drive unit, stereo speaker drive unit, microphone receiver unit;

As a preferred technical solution, the outdoor door phone is a building intercom outdoor machine, which includes a main control unit, a network communication unit, a POE power supply unit, a PMU power management unit, an LCM display drive unit, a key processing unit, and a camera drive unit , Speaker drive unit, microphone receiver unit, card swiping sensor unit, door lock control unit.

As a preferred technical solution, the background data processing center is mainly composed of a background SIP server and a community property management center.

As a preferred technical solution, the building intercom indoor unit adopts an aluminum alloy oxidized brushed panel and a plastic back shell composite shell, adopts a wall-mounted installation method, and all wiring ports are located in the middle of the back, with an 86X86 standard electrical bottom box and an LCD display drive unit It adopts 10.1-inch TFT LCD liquid crystal display.

As a preferred technical solution, the building intercom outdoor unit adopts an aluminum alloy oxidized brushed panel and a double-layer metal rear shell, adopts a 16-key numeric keypad design, and a display interface adopts a 12864 liquid crystal display.

As a preferred technical solution, both the building intercom outdoor unit and the building intercom indoor unit adopt POE power supply or DC power supply.

The beneficial effects of the utility model are: the utility model uses the visual intercom system (including a sip server) as a technical platform, transmits audio and video streams, real-time command strings, and message texts on this platform, and gradually expands functions such as security and home appliance control . The smart camera needs to use a third-party server for remote communication, or it can ignore the server and only use it in the local area network.

The host of the video intercom system adopts the current mature and stable Android system as the platform, providing users with a simple and clear operation interface. The product adopts high-definition digital audio and video sampling coding and decoding technology and network transmission technology. No matter where the user is, they can receive high-definition video and audio through the indoor host, mobile phone or computer and other equipment, and control the indoor and outdoor situations at any time.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a system block diagram of the utility model;

Fig. 2 is the schematic diagram of the circuit of the power supply part;

Fig. 3 is the circuit principle diagram of PMU part;

Fig. 4 is a circuit schematic diagram of the DDR part;

Fig. 5 is the schematic circuit diagram of the FLASH part;

Fig. 6 is the circuit principle diagram of network interface PHY part;

Fig. 7 is a schematic circuit diagram of the camera module part;

Fig. 8 is the circuit principle diagram of audio part;

Fig. 9 is the key operation display part 1 of the outdoor unit;

Figure 10 is the outdoor unit button operation display part 2

detailed description

All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

As shown in Figure 1, it includes a video intercom system controlled based on the Android system. The video intercom system includes an indoor multimedia control unit, a background data processing center and an outdoor outdoor station. The communication between each unit is connected by a network cable. , the multimedia control unit of the indoor unit and the outdoor unit both include a smart camera and a camera drive unit for driving the smart setting head to work. Wireless router, the wireless router is connected to the ZIGBEE gateway, the mobile terminal controls the video intercom system through the background data processing center, and the outdoor door phone is connected to the wireless router through wired or wireless means.

The indoor unit multimedia control unit is a building intercom indoor unit, which includes the main control unit, network communication unit, POE power supply unit, PMU power management, LCD display drive unit, touch screen drive unit, camera drive unit, stereo speaker drive unit, Microphone receiving unit;

The outdoor outdoor station is a building intercom outdoor station, which includes a main control unit, a network communication unit, a POE power supply unit, a PMU power management unit, an LCM display driver unit, a key processing unit, a camera driver unit, a speaker driver unit, and a microphone receiver unit , Swipe card sensor unit, door lock control unit.

The other functional modules of the above indoor and outdoor units are all the modules of the building intercom in the prior art, so the only difference is that a smart camera and a camera drive unit are added to the utility model, and the indoor and outdoor information can be understood anytime and anywhere through Internet technology. Abnormal situations can be remotely controlled, easy to use, reliable, and safe. The background data processing center is mainly composed of the background SIP server and the community property management center.

The indoor unit adopts an aluminum alloy oxidized brushed panel and a composite shell of a plastic back shell. It adopts a wall-mounted installation method. All wiring ports are located in the middle of the back. With the 86X86 standard electrical bottom box, the wiring can be hidden, which is convenient for users to install and take out. The display drive unit adopts a 10.1-inch TFT LCD liquid crystal display screen, and cooperates with an industrial-grade capacitive touch screen to bring users a clear and convenient operation interface.

The outdoor unit adopts an aluminum alloy oxidized brushed panel and a double-layer metal back shell, which is convenient for installation and maintenance. 16-key numeric keypad design, key LED automatic backlighting (lights up at night when the light is insufficient). The display interface adopts 12864 LCD screen with automatic backlight (lights up when pressing a button). The camera has an automatic infrared compensation function, and images can be obtained normally at night. Support Mifare card reading and writing, and with anti-copy card function.

Both the building intercom outdoor unit and the building intercom indoor unit adopt POE power supply or DC power supply mode, which can realize communication and power supply at the same time through a network cable, which saves the trouble of separate wiring and separate power supply, which greatly facilitates the installation and maintenance of users maintainance.

The video intercom system supports multiple outdoor VTOs and can monitor outdoor VTOs. The system can realize multiple communication modes, that is, communication between indoor unit and outdoor unit, indoor unit and indoor unit, indoor unit and management unit.

In addition, the visual intercom system of the present utility model is used for the functions of the building intercom system in the prior art. For example, when an emergency occurs, the user can call the management center to report in time through the indoor unit or the outdoor unit. Processing; the community management center can release management information, outdoor door phone monitoring, emergency handling, etc. through the management platform; the video intercom system supports multiple unlocking methods, such as remote unlocking by calling the doorbell, password unlocking, and card-swiping unlocking. ;By configuring external security sensors (such as door magnetic sensors, emergency buttons, etc.), it can realize defense zone alarms, door status alarms, etc.

Since the host of the video intercom system adopts the current mature and stable Android system as the platform, the user operation interface is simple and clear, and the interface style can be customized. Support independent download and installation of APP, you can enjoy more multimedia online resources through the network. At the same time, the system supports OTA online upgrade, providing support for subsequent optimization of the system and improvement of user experience.

As shown in Figure 2, the power supply part adopts two ways of DC12V power supply and POE power supply. The two power supply methods are isolated by diodes D7 and D8, and can be connected at the same time and used at will. CN17 and CN18 are connected to the POE receiving module. U13 is the DCTODC step-down main control chip, which is responsible for converting the input 12V DC voltage into 5V DC voltage and then supplying the PMU part, LCD, door lock control and other 5V power supply parts. DC12V is input from 2PIN, output from 3PIN after controlled by PWM switch, and output 5V DC after being filtered by energy storage inductor L8 and filter capacitor.

As shown in Figure 3, the main chip of the PMU uses ACT8846, which is responsible for providing multiple sets of power supply voltages for the entire system. ACT8846 is composed of switch circuit, 4-way DCDC, 9-way LDO, reset, IO and internal logic circuit.

The 31st PIN (nPBIN) of ACT8846 is the power-on signal input pin. When this PIN is pulled down to ground through a 51K resistor (R13), the signal acts as a power-on signal. When the power button is pressed, the PMU will power on and output the default value. When the power supply output of the PMU is normal, you need to input a high level to 32PIN (PWRHLD PIN), and then disconnect the power button, the output of the PMU will be maintained, or the PMU will be powered off.

Short press SW1 after booting to turn off the screen display, and press this key for more than 4 seconds to power off the PMU. Short press SW2, that is, 32PIN (PWRHLD PIN) is pulled low, and the system will reset and restart.

When the system is working normally, the output of the PMU will be adjusted through I2C.

The 16th pin of ACT8846 is the ARM voltage output control pin, which can turn off the ARM power supply during deep sleep. The 8th, 44th, and 45th pins are the default output enable pins of the PMU. When the 8th, 44th, and 45th pins are low, the BUCK2, 3, and 4 of the PMU are output by default. The 17th pin is the internal reference voltage, which needs to be connected with bypass capacitor C51. The 43rd pin outputs an oscillating waveform to enable the 24M clock of the main control when the power is turned on for the first time, and it is an open-drain input after the power-on is completed.

BUCK2 and BUCK3 of ACT8846 have a load capacity of 2.8A, which respectively supply power to VDD_LOG and VDD_ARM of the main control RK3188; BUCK1 and BUCK4 have a load capacity of 1.5A, which respectively supply power to VCCIO and VCC_DDR of RK3188. The four groups of BUCKs have the same structure.

As shown in Figure 4, the main control chip RK3188 needs two 4Gb DDR3 SDRAM memory chips. The main control chip DDRC works in 32bit mode. DDRC is connected to two pieces of DDR3SDRAM with a data bus width of 16bit. Connect in parallel. DDR3 uses 1.5V power supply, which is unified with the 1.5V power supply of HI3516DDRC part. The reference voltage Vref is 0.75V, which is obtained by dividing the voltage with two 10K resistors.

As shown in Figure 5, the system uses 64Gbit NAND FLASH as a storage chip to store system operating firmware, device drivers, user data, etc.

As shown in Figure 6, the network interface chip adopts LAN8720, which supports 10/100M network transmission.

LAN8720 is connected to the main control RK3188 through the RMII interface, and the clock signal is also provided by the main control RK3188, which is output from RK3188 PIN K21 and input by U3PIN5. The output of the LAN8720 ETH interface is connected to the network transformer T1 to realize electrical isolation from the external network.

As shown in Figure 7, the main control chip RK3188 supports a set of CAMERA interfaces. CN6 is the module FPC connector. After power-on reset, RK3188 outputs the system clock through PIN Y5 and provides it to the CAMERA module through CN6 PIN13. After the CAMERA module collects the image data, it outputs to RK3188 through the 8-bit parallel port data line, and at the same time outputs the pixel clock PCLK through CN6PIN17. Considering that the transmission distance between the CAMERA module and the main control is relatively long, in order to prevent timing problems caused by wire crossing and abnormal data collection, an RC delay adjustment circuit is specially added to the clock line;

As shown in Figure 8, U9 ALC5631Q is the audio CODEC part, which is connected to the main control RK3188 through the I2S interface. ALC5631Q includes MIC amplification, ADC, DAC, power amplifier output and other parts. It can convert the signal picked up by MIC into digital audio and input it to RK3188 through I2S interface. At the same time, it can also convert the intercom sound and system audio received by RK3188 to the power amplifier through DAC. Output to drive the speaker. MIC and speaker output adopt differential input and output mode.

As shown in Figure 9 and Figure 10, the outdoor unit and the indoor unit share a main board, but the outdoor unit has a key board and an infrared light compensation board. The key board is mainly used for key input and LCM display driver, and is mainly controlled by MCU U201 Finish. MCUU201 communicates and exchanges data with the main control chip RK3188 through the serial port. The keys include 0-9 number keys, A-D letter keys and "*/#" keys, which are mainly used as dialing to provide an operation interface.

The beneficial effects of the utility model are: the utility model uses the visual intercom system (including a sip server) as a technical platform, transmits audio and video streams, real-time command strings, and message texts on this platform, and gradually expands functions such as security and home appliance control . The smart camera needs to use a third-party server for remote communication, or it can ignore the server and only use it in the local area network.

The host of the video intercom system adopts the current mature and stable Android system as the platform, providing users with a simple and clear operation interface. The product adopts high-definition digital audio and video sampling coding and decoding technology and network transmission technology. No matter where the user is, they can receive high-definition video and audio through the indoor host, mobile phone or computer and other equipment, and control the indoor and outdoor situations at any time.

The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any change or replacement that is not thought of through creative work should be covered within the scope of protection of the utility model . Therefore, the protection scope of the present utility model should be determined by the protection scope defined in the claims.

Claims (7)

1. An Android video intercom system, characterized in that: comprise a video intercom system based on the Android system control, said video intercom system comprises an indoor unit multimedia control unit, a background data processing center and an outdoor outdoor station. Each unit is connected and communicated by a network cable. Both the indoor unit multimedia control unit and the outdoor outdoor unit include a smart camera and a camera drive unit for driving the smart setting head. The indoor unit and the outdoor unit are respectively installed in the indoor And outdoors, it is connected to the wireless router through wired or wireless, the wireless router is connected to the ZIGBEE gateway, the mobile terminal controls the video intercom system through the background data processing center, and the outdoor door phone is connected to the wireless router through wired or wireless. 2. The Android video intercom system according to claim 1, wherein the multimedia control unit of the indoor station is a building intercom indoor station, which includes a main control unit, a network communication unit, a POE power supply unit, PMU power management, LCD display driver unit, touch screen driver unit, camera driver unit, stereo speaker driver unit, microphone receiver unit. 3. The Android video intercom system according to claim 1, wherein the outdoor door phone is a building intercom outdoor machine, which includes a main control unit, a network communication unit, a POE power supply unit, and a PMU power supply Management, LCM display driver unit, key processing unit, camera driver unit, speaker driver unit, microphone receiver unit, card swiping sensor unit, door lock control unit. 4. The Android video intercom system according to claim 1, characterized in that: the background data processing center is mainly composed of a background SIP server and a community property management center. 5. The Android video intercom system according to claim 2, characterized in that: the building intercom indoor unit adopts an aluminum alloy oxidized brushed panel and a plastic rear shell composite shell, and adopts a wall-mounted installation method, and all wiring ports are located on the back The middle position is matched with the 86X86 standard electrical bottom box, and the LCD display drive unit adopts a 10.1-inch TFT LCD liquid crystal display. 6. The Android video intercom system according to claim 3, characterized in that: the building intercom outdoor unit adopts an aluminum alloy oxidized brushed panel and a double-layer metal rear shell, adopts a 16-key numeric keyboard design, and the display interface adopts 12864 LCD display. 7. The Android video intercom system according to claim 1, characterized in that: the building intercom outdoor unit and the building intercom indoor unit both adopt POE power supply or DC power supply.