CN102306237A - Internet-based interactive digital media terminal device - Google Patents
Internet-based interactive digital media terminal device Download PDFInfo
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- CN102306237A CN102306237A CN201110196124A CN201110196124A CN102306237A CN 102306237 A CN102306237 A CN 102306237A CN 201110196124 A CN201110196124 A CN 201110196124A CN 201110196124 A CN201110196124 A CN 201110196124A CN 102306237 A CN102306237 A CN 102306237A
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Abstract
The invention provides an internet-based interactive digital media terminal device which comprises a processor unit, a power supply unit, an LCD (Liquid Crystal Display) unit, a network interface unit, an SD (Secure Digital) memory card unit and an interactive button unit. In the internet-based interactive digital media terminal device, digital media transmitted from a PC (Personal Computer) according to a TCP (Transmission Control Protocol) through the network interface unit is stored in the SD memory card unit; the media data subjected to decompression and decoding is displayed on the LCD unit; and the interactive button unit is used for receiving media content feedback information from a user. The internet-based interactive digital media terminal device is connected to Internet through an RJ45 (Registered Jack 45) port and immediately uploads the feedback information from the user to a PC monitoring center; and the SD memory card stores the digital media and user evaluation information, thus the safety of information and automatic recovery capability after power failure are ensured. The internet-based interactive digital media terminal device has strong adaptability and is connected with the Internet through an RJ45 crystal head slot, thus connection is convenient and the transmission speed is fast; and in addition, a terminal connected with the Internet can ensure the real-time performance and accuracy of information.
Description
Technical field
The present invention relates to network communication field, be specifically related to a kind of interactive digital media termination device based on the Internet.
Background technology
At present, various forms of digital media advertisement system has all appearred in public places such as staircase, airport lounge, railway station, and they use closed circuit advertisement machine scheme usually.
Closed circuit advertisement machine is to utilize transmission signals such as high frequency cable, optical cable, microwave, and in certain user, distribute and play sound, the television system of information such as image.Present closed circuit advertisement machine develops into tens channels even more from two or three channels of beginning, develops into millions of big systems from tens users' mini system, and transmission range develops into kilometers up to a hundred from hundreds of rice.Develop into the system ensemble of light harvesting cable, microwave, cable one from simple cable transmission; Develop into the fusion of same computing machine, exchange of speech network technology from single TV transmission program; Realize the transmission of multiple information, multiple business; From defeated develop into the neighbour and keep pouring in defeatedly, develop to digitizing, multifunction, industrialization and on national network direction at a distance from keeping pouring in.
The principal feature of advertisement machine scheme is to adopt the channel mode releasing advertisements, and its advantage is: for mobile public place such as motorbus etc., just the acceptable signal that can not need connect up; In addition, area coverage is bigger.Its obvious inferior position is: (1) system construction cost is high, and needs signal relay.The complicated operation of advertisement machine needs professional's periodic maintenance.Can not realize long-rangely, can not manage the terminal.(2) adopt the channel broadcasting mode, play the different advertisement content to different target clients if desired, then need increase a plurality of channel supports, cost of use is very high in follow-up safeguarding, and can't make flexible expansion to the segmentation want advertisement.(3) advertisement machine system schema very inconvenience in use needs the professional could skillfully use this system, and the ordinary person can't skilled at once operation.(4) as running into the zone of poor signal, the terminal display effect is very undesirable, even is detested by the people.
In addition, this drawback of advertisement putting " mandatory " begins to highlight." mandatory " is meant the pouplarity regardless of advertisement, all can appear in spectators' the visual field.Mandatory watching both can be used as an advantage that causes high attention rate, is again a drawback on the other hand, very easily causes spectators' dislike.A large amount of media advertisement intention all is confined to the displaying and the interaction of advertisement itself at present, and it is single that advertisement form and user's interactive form all shows slightly.This mandatory advertisement of strangling spectators' will will be suffered spectators' resistance.In the course of time, just formed " advertisement blind area ", this will reduce advertising effect.
Summary of the invention
To the problem that prior art exists, the present invention provides a kind of interactive digital media termination device based on the Internet.When apparatus of the present invention are applied to advertisement putting, its feedback mechanism can the balance advertisement contradictory relation between the mandatory and user satisfaction, realized the advertisement putting of efficiently and accurately.
Technical scheme of the present invention is: the interactive digital media termination device based on the Internet comprises: processor unit, power supply unit, LCD display unit, network interface unit, SD card unit and interactive button unit.This device receives digital media storage that PC transmits through network interface unit in SD card unit with Transmission Control Protocol; Then Digital Media is presented at the LCD display unit after decompressing and decoding, the interactive button unit is used to receive the feedback information of user to ad content.Device is connected to the Internet through the RJ45 port, and field feedback in time is uploaded to PC Surveillance center; Said Digital Media comprises JPG format picture and AVI video.
Processor unit mainly comprises single-chip microcomputer, reset circuit and clock circuit, interpreter directive and accomplish corresponding operation according to other unit of programmed instruction control.
Reset circuit comprises button, and resistance and electric capacity are through the reset operation of button finishing device.The chip reset condition is that the RESET# pin is changed to the low level long enough time.After button was pressed, the RESET# pin was changed to low level, and button unclamps back RESET# pin and slowly recovers high level.
Clock circuit comprises two electric capacity, two resistance and a quartz oscillator.
Power supply unit is each unit power supply of whole device through voltage transitions chip changing voltage.
The LCD display unit is used for the display digit media content.
Network interface unit is connected on the SPI port of central processing unit.
The digital media content of receiving processor unit, SD card unit, the SD card links to each other with the SD draw-in groove, and media file storage is in the SD card.
The interactive button unit comprises switch, and resistance and electric capacity are used for gathering the feedback information of user to advertisement, and two switches are connected respectively to two input ports of processor unit, and the implication of these two switches is respectively " liking " and " skipping ".
The output terminal of the reset circuit in the processor unit is received on the reseting port of single-chip microcomputer; Quartz oscillator two ends in the clock circuit are through parallelly connected with a resistance behind the capacity earth; Wherein an end is directly as an output terminal; After the other end resistance in series as another output terminal; Two output terminals of clock circuit are received the clock port of single-chip microcomputer, for central processing unit provides a stable clock source.The output terminal of power supply unit is received the power port of single-chip microcomputer.The LCD control signal of single-chip microcomputer output outputs to the LCD display module through general output port, and network interface unit and SD card unit all are connected to the SPI port of single-chip microcomputer through spi bus.The output terminal of interactive button unit is received two input ports of single-chip microcomputer respectively.
The control flow of said interactive digital media termination device based on the Internet is following:
Step 1: device carries out initialization according to stored configuration information in the SD card to whole device after powering on.
All devices in network must have correct IP configuration, configuration information are deposited in the SD card so that the IP configuration of change device through PC among the present invention.Configuration information comprises IP address, port numbers, purpose IP address and the destination slogan of apparatus of the present invention.
The initialization of single-chip microcomputer comprises following process: the initialization of clock, the initialization of interrupt system, the initialization of SPI interface, the initialization of input and output pin, the initialization of USART interface, LCD display initialization and network communication interface initialization.
Step 2: initialization is carried out periodic queries after accomplishing.
When device receives jpeg format picture or AVI video, it is stored up in the SD card, and digital media file is decompressed and decodes, be presented on the LCD then.
If when not receiving jpeg format picture or AVI video, device will be chosen media file in the SD card and digital media file decompressed and decode according to following mode, be presented on the LCD then.
It is following to choose SD card file method: the advertisement of n kind is sorted by the number of times that is selected as " liking " from more to less; Advertisement name after ordering assignment respectively gives variables A 1 to An; The advertisement of n kind is sorted by the number of times of playing from more to less, the advertisement name after ordering assignment is respectively given variable B1 to Bn again.If A1 is not equal to B1, then choose A1, if A1=B1 then compares A2 and B2.If A2 is not equal to B2, then choose A2, if A2=B2 then compares A3 and B3 ... If A and B are identical, then picked at random is one.Like this, the frequency that occurs of the content liked of user is higher than the frequency that content that this user dislikes occurs.
There is the time-delay in three seconds to be used for waiting for user key-press after each playing digital medium content.User key-press one has two, and the button title is respectively " liking " and " skipping ".User key-press is used for collecting the like degree of user to current display ads, so that improve advertisement targetedly.When the user liked the current digit media content, the user was by " liking " button; Otherwise the user is by " skipping " button.After device is received the button feedback information, at once this feedback information is sent to PC Surveillance center through network interface unit, store into simultaneously in the SD card.
Step 3: get into next polling cycle.
Beneficial effect
The present invention has guaranteed the safety of information and the automatic recovery capability after the outage through SD card storage Digital Media and user's evaluation information.Device adaptability is strong, links to each other with the internet through the RJ45 connector slot, and easy to connect, transmission speed is fast, real-time and accuracy that the terminal of access can guarantee information.Apparatus structure compactness, compact size, reliability are high, easy for installation and moderate, help generally using on a large scale.
Description of drawings
Fig. 1 one-piece construction block diagram of the present invention;
Fig. 2 embodiment of the invention power supply unit circuit diagram;
Fig. 3 embodiment of the invention processor unit circuit diagram;
Fig. 4 system program process flow diagram of the present invention;
Fig. 5 embodiment of the invention LCD display interface circuit;
Fig. 6 embodiment of the invention interactive button element circuit;
Fig. 7 embodiment of the invention network interface unit circuit;
Fig. 8 embodiment of the invention SD card module interface circuit;
Fig. 9 embodiment of the invention reset circuit schematic diagram;
Figure 10 embodiment of the invention clock circuit schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Interactive digital media termination device based on the Internet comprises: processor unit, power supply unit, LCD display unit, network interface unit, SD Cavan part system and interactive button unit.System architecture of the present invention as shown in Figure 1;
Processor unit mainly comprises single-chip microcomputer, reset circuit and clock circuit, interpreter directive and accomplish corresponding operation according to other unit of programmed instruction control.
Reset circuit is by button, and resistance and electric capacity are formed, and through the reset operation of button finishing device, circuit as shown in Figure 9.After button was pressed, the RESET# pin was changed to low level, and button unclamps back RESET# pin and slowly recovers high level.
Clock circuit is by two electric capacity, and two resistance and a quartz oscillator are formed, and circuit as shown in figure 10.Link to each other with central processing unit with OSC_OUT through OSC_IN, this circuit is that central processing unit provides a stable clock source.
The chip model that central processing unit adopts is the single-chip microcomputer of STM32F103RDT6, it the is inner integrated Cortex-M3 kernel of ARM7, and maximum clock frequency can reach 72MHZ, comprises the ROM of 384K and the RAM of 64K in the sheet.2 SPI interfaces that utilize chip integration to become stick into row communication with network interface chip and SD respectively, and the processor unit circuit as shown in Figure 3.
Power supply unit is each unit power supply of whole device, and power supply unit becomes 3.3V to the 5V voltage transitions through voltage transitions chip AS1117-3.3, and 5V voltage is inserted by 1,2 pin in the plug that DC_IN1 is arranged.The power supply unit structure as shown in Figure 2.
LCD display unit with 2.8-inch color LCD display, the driver chip model ili9320, a resolution of 240
320, connection ports as shown in Table 1.Ili9320 have can be used for read-write register and display icon storer system interface be used for showing the rgb interface of motion graphics.All data exist among the GRAM, can reduce the work of data transmission like this, have only necessary data updated just to be transmitted.What Ili9320 adopted is the high-performance microprocessor of 18 general line interface structures.The LCD display interface circuit as shown in Figure 5, this LCD display low price, versatility are good.
Table 1 LCD display Wiring port
| Port numbers | The port | Port function | |
 |
CS | The sheet choosing | |
| 2 | RS | Register is selected | |
| 3 | | Write selection | |
| 4 | RD | Read to select | |
| 5 | RESET | Reset | |
| 6-21 | D0-D15 | Parallel |
|
| 23 | BL | |
|
| 26 | GND | Ground wire |
Network interface unit adopts network interface chip W5100, and the network interface unit circuit as shown in Figure 7.Solidified among the W5100 from MAC layer, network layer to the needed agreement of transport layer; And integrated Fast Ethernet physical layer interface controller; Add RJ45 socket and peripheral auxiliary circuit; Just can realize easily that embedded scm passes through the computing machine communication in Ethernet and the LAN (Local Area Network); Make the present invention realize the collector data are uploaded to automatically the function of monitoring center; Saved manual one by one complicated work of gathering digital instrument reading device data in the classic method; Greatly reduce operation cost, improved the reliability of data acquisition.Network interface unit is set up TCP with PC Surveillance center and is connected, and carries out information transmission through Transmission Control Protocol, and end device is initiatively initiated connection request to PC as the client in the TCP communication, and when TCP connected unexpected the disconnection, end device can reconnect automatically.The Wiring port of this network interface unit is as shown in table 2.
The Wiring port of table 2 network interface unit
| Port numbers | The port | Port function | |
| 1 | SPI2_MISO | Data owner is gone into from going out | |
| 2 | SPI2_MOSI | Data owner goes out from going into | |
| 3 | NET_CS | The sheet choosing | |
| 4 | | Clock signal | |
| 6 | NET_INT | Look-at-me | |
| 8 | VCC3.3 | |
|
| 9 | GND | Ground wire |
SD card unit stored configuration and digital media information, SD card element circuit as shown in Figure 8.SD_CARD1 is the SD draw-in groove, and wherein 1 to 9 pin directly links to each other with the SD card.The connection situation of each signal is as shown in table 3 on the SD draw-in groove.SPI1_MISO, SPI1_SCK, SPI1_MOSI, the SD_CS signal links to each other with PA4 to the PA7 port of processor unit.
Signal on the table 3 SD draw-in groove connects situation
| The SPI pattern | SD card signal (port title) | Port numbers | Port function |
| SD_CS(PA4) | SD_DT3 | 1 | The sheet choosing |
| SPI1_MOSI(PA7) | |
2 | The master goes out from going into |
| Ground wire | DGND | 3 | Ground wire |
| Power lead | VCC3.3 | 4 | Power lead |
| SPI1_SCK(PA5) | SD_SCK | 5 | Clock |
| Ground wire | DGND | 6 | Ground wire |
| SPI1_MISO（PA6） | |
7 | The master goes into from going out |
| Do not have | |
8 | Do not have |
| Do not have | |
9 | Do not have |
The interactive button element circuit as shown in Figure 6.The interactive button unit is connected on the PA0 and PA1 port of processor unit; SD card unit is connected on PA4 to the PA7 port of processor unit, utilizes SPI mode and single-chip microcomputer to carry out the transmitted in both directions of data; Network interface unit is connected on PB12 to the PB15 port of single-chip microcomputer, utilizes SPI mode and single-chip microcomputer to carry out the transmitted in both directions of data; In addition, the PA8 to PA11 of single-chip microcomputer, NRST and PC0 to PC15 port are connected respectively to pin 1 to the pin 21 in the LCD display module.
The output terminal of reset circuit is received on the RESET# port of single-chip microcomputer; Quartz oscillator two ends in the clock circuit are through parallelly connected with a resistance behind the capacity earth; Wherein an end is directly as an output terminal; After the other end resistance in series as another output terminal; Two output terminals of clock circuit are received on the OSC_IN and OSC_OUT port of single-chip microcomputer, for central processing unit provides a stable clock source.The output terminal of power supply unit is received on the VDD and VSS port of single-chip microcomputer.The LCD control signal of single-chip microcomputer output is through PA8 to PA11, and NRST and PC0 to PC15 port output to the LCD display module, are connected with 1 to 15 port of LCD display unit.3,4,1,2 port of network interface unit is connected on PB12 to the PB15 port of central processing unit.1,5,7,2 ports of SD card unit are connected on PA4 to the PA7 port of central processing unit.The output terminal of interactive button unit " is liked " and " skipping " received the PA0 of single-chip microcomputer respectively, on the PA1 port.
Global procedures design cycle of the present invention as shown in Figure 4, the control flow of said interactive digital media termination device based on the Internet is following:
Step 1: device carries out initialization according to stored configuration information in the SD card to whole device after powering on.
All devices in network must have correct IP configuration, configuration information are deposited in the SD card so that the IP configuration of change device through PC among the present invention.Configuration information comprises IP address, port numbers, purpose IP address and the destination slogan of apparatus of the present invention.
Configuration file is used for the storing IP configuration information.The IP configuration information comprises the IP address of this device, the port numbers of this device, purpose IP address and destination slogan.These four information are arranged in configuration file in order, and every accounts for delegation, for example:
Configuration file content is following:
192.168.1.3
3000
202.118.18.14
50000
Wherein, 192.168.1.3 is the IP address of this device, the 3000th, and the port numbers of this device, 202.118.18.14 is purpose IP address, the 50000th, the destination slogan.
The initialization of single-chip microcomputer comprises following process: the initialization of clock, the initialization of interrupt system, the initialization of SPI interface, the initialization of input and output pin, the initialization of USART interface, LCD display initialization and network communication interface initialization.
Step 2: initialization is carried out periodic queries after accomplishing.
When device receives jpeg format picture or AVI video, it is stored in the SD card, and digital media file is decompressed and decodes, be presented on the LCD then.
If when not receiving jpeg format picture or AVI video, device will be chosen media file in the SD card and digital media data decompressed and decode according to following mode, be presented on the LCD then.
It is following to choose SD card file method: the advertisement of n kind is sorted by the number of times that is selected as " liking " from more to less; Advertisement name after ordering assignment respectively gives variables A 1 to An; The advertisement of n kind is sorted by the number of times of playing from more to less, the advertisement name after ordering assignment is respectively given variable B1 to Bn again.If A1 is not equal to B1, then choose A1, if A1=B1 then compares A2 and B2.If A2 is not equal to B2, then choose A2, if A2=B2 then compares A3 and B3 ... If A and B are identical, then picked at random is one.Like this, the frequency that occurs of the content liked of user is higher than the frequency that content that this user dislikes occurs.
There is the time-delay in three seconds to be used for waiting for user key-press after each playing digital medium content.User key-press one has two, and the button title is respectively " liking " and " skipping ".User key-press is used for collecting the like degree of user to current display ads, so that improve advertisement targetedly.When the user liked current ad content, the user was by " liking " button; Otherwise the user is by " skipping " button.After device is received the button feedback information, at once this feedback information is sent to PC Surveillance center through network interface unit, store into simultaneously in the SD card.
Step 3: get into next polling cycle.
Claims (2)
1. based on the interactive digital media termination device of the Internet, it is characterized in that: comprising: processor unit, power supply unit, LCD display unit, network interface unit, SD card unit and interactive button unit;
Processor unit mainly comprises single-chip microcomputer, reset circuit and clock circuit;
Two switches of interactive button unit are connected respectively to two input ports of processor unit;
The output terminal of the reset circuit in the processor unit is received on the reseting port of single-chip microcomputer; Quartz oscillator two ends in the clock circuit are through parallelly connected with a resistance behind the capacity earth; Wherein an end is directly as an output terminal, after the other end resistance in series as another output terminal; Two output terminals of clock circuit are received the clock port of single-chip microcomputer, and the output terminal of power supply unit is received the power port of single-chip microcomputer; The LCD control signal of single-chip microcomputer output outputs to the LCD display module through general output port, and network interface unit and SD card unit all are connected to the SPI port of single-chip microcomputer through spi bus; The output terminal of interactive button unit is received two input ports of single-chip microcomputer respectively.
2. the interactive digital media termination device based on the Internet according to claim 1 is characterized in that the control flow of said device carries out as follows:
Step 1: whole device is carried out initialization according to stored configuration information in the SD card;
Step 2: carry out periodic queries;
When device receives jpeg format picture or AVI video, digital media file is stored in the SD card, and it is decompressed and decodes, be presented at then on the LCD;
When device when not receiving jpeg format picture or AVI video, choose digital media file in the SD card and digital media file decompressed and decode according to following mode, be presented at then on the LCD;
It is following to choose in the SD card digital media file method: the advertisement of n kind is sorted by the number of times that is selected as " liking " from more to less; Advertisement name after ordering assignment respectively gives variables A 1 to An; The advertisement of n kind is sorted by the number of times of playing from more to less, the advertisement name after ordering assignment is respectively given variable B1 to Bn again; If A1 is not equal to B1, then choose A1, if A1=B1 then compares A2 and B2; If A2 is not equal to B2, then choose A2, if A2=B2 then compares A3 and B3 ... If A and B are identical, then picked at random is one; Like this, the frequency that occurs of the content liked of user is higher than the frequency that content that this user dislikes occurs;
Have the time-delay in three seconds to be used for waiting for user key-press after each playing media content, when the user liked current ad content, the user was by " liking " button; Otherwise the user is by " skipping " button; After device is received the button feedback information, at once this feedback information is sent to PC Surveillance center through network interface unit, store into simultaneously in the SD card;
Step 3: get into next polling cycle.
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| CN201110196124A CN102306237A (en) | 2011-07-13 | 2011-07-13 | Internet-based interactive digital media terminal device |
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| CN201110196124A CN102306237A (en) | 2011-07-13 | 2011-07-13 | Internet-based interactive digital media terminal device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20120104 |