CN202931390U - Household internet of things monitoring system based on built-in Linux - Google Patents
Household internet of things monitoring system based on built-in Linux Download PDFInfo
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- CN202931390U CN202931390U CN 201220646846 CN201220646846U CN202931390U CN 202931390 U CN202931390 U CN 202931390U CN 201220646846 CN201220646846 CN 201220646846 CN 201220646846 U CN201220646846 U CN 201220646846U CN 202931390 U CN202931390 U CN 202931390U
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Abstract
Disclosed is a household internet of things monitoring system based on the built-in Linux, applicable to the intelligent monitoring of the intelligent household devices. The household internet of things monitoring system of the utility model introduces Zigbee wireless sensor network, thereby making the management of the controlled nodes be more systemic and convenient. The household internet of things monitoring system introduces the internet of things technology, thereby overcoming the defects of the conventional monitoring system which is unable to combine the network real-time monitoring and control. According to the utility model, a web server is set at the build-in device, thereby allowing users to carry out remote monitoring and control over the household environment at any place through a browser. The introduction of the GPRS and Wifi module makes it possible to carry out remote mobile monitoring and control. The introduction of an QT touch screen control interface allows users to carry out monitoring and controlling at the local under the condition that the network is interrupted. The introduction of the blurring PID control technology makes the control over the key transmission devices have better real-time performance and be more accurate. The household internet of things monitoring system of the utility model makes the monitoring system more convenient and humanized, and makes preparations for the establishment of large-sized urban internet of things.
Description
Technical field
The utility model relates to a kind of Intelligent home monitoring system based on built-in Linux, Zigbee wireless sensor network and Automatic Control Theory.
Background technology
Along with expanding economy, people are also more and more higher to the requirement of living environment, and the concept of intelligent building is also just arisen at the historic moment.People require can real time monitoring and control domestic environment and housed device.Along with the development of technology, this requirement be embodied as for may, information technology extensive application has under construction formed so-called " intelligent building ".The proposition of Internet of Things makes the degree of intelligent building that further lifting arranged again.By being distributed in the accurate perception of different sensors in building, and with perception information real-time be delivered to control end, and can be delivered to mobile control end by wireless network, make like this that the monitoring of building becomes more accurately and flexibly.The researcher of association area has done many researchs on this basis, also develops some corresponding systems.
What deep and clear grade of water of Changsha dual intensity electronics technology Co., Ltd communicates by 3G Smart Home watch-dog and intelligent home device, by 3G network accessing Internet (Internet), by personal computer (PC), Smart Home is controlled (" Intelligent home monitoring system " at last, Chinese patent, application number: CN201020607276.3, the applying date: 2010.11.16).This system adopts PC as processor, needs uninterruptedly start, and the installation and operation cost is all a lot of like this, does not meet the concept of low-carbon (LC).And the directly actuated mode of this system's employing PC, control the software that needs to install appointment, flexibility is not high.
The employing single-chip microcomputers such as the Li Yang of Tianjin University of Technology directly are connected with controlled intelligent home device, the mode that communicates with host computer is again monitored domestic environment (" intelligent household security system ", Chinese patent, application number: CN201210116363.2, the applying date: 2012.04.20).This system adopts single-chip microcomputer as processor, and function singleness, communication capacity are relatively poor, can't realize remote monitoring truly, and the system extension ability are very low.
Peng Zhao bright employing embedded-type ARM in Liaoning is as centralized control unit, by serial ports (RS485), intelligent home device is connected with the ARM center processor with transducer, realize the function (" based on the wireless intelligent house system of GPRS " of Long-distance Control with the GPRS module, Chinese patent, application number: CN200910013337.5, the applying date: 2009.08.25).This system carries out data communication by the mode that directly controlled device is connected with center processor with Wireline, make the interpolation of node be difficult to management with deletion, after if number of nodes increases, need to set up a large amount of communication lines, have a strong impact on systematic function and aesthetic property, do not meet the concept of current intelligent building.
The superfine introducing Zigbee wireless sensor of Deng of Guangdong University of Science ﹠ Technology network communicates Smart Home node and ARM center processor, by the Internet remote interface, domestic environment is carried out Long-distance Control (" a kind of multimedia intelligent household network based on Zigbee ", Chinese patent, application number: CN201120450919.2, the applying date: 2011.11.15).This system introduces wireless sensor network, but the whole monitor task of system all is fixed against network, and this locality does not have monitor supervision platform, in case network interrupts, is in node in wireless sensor network and can only relies on and manually go to control, and system is paralysed fully.And this system also lacks the remote wireless monitoring ability.
The employing Zigbee wireless sensor network of the Cai Long of Institutes Of Technology Of Taiyuan is as bottom Smart Home communication medium, processor adopting embedded-type ARM center processor, added the local platform (" based on the design of the home furnishings intelligent supervisory control system of ARM and Zigbee " of controlling of QT, Master's thesis, date: 2011.05), the reasonable problem that solves local and remote control.But this system will not monitor with control and combine, and the intelligent monitoring core is that monitoring and controlling combines, and this system lacks the function that video is monitored whenever and wherever possible, more not add moving images identification and algorithm and the function processed.This system easily produces the phenomenon of false alarm according to the perception of transducer.And this system lacks the ability of the mobile device monitoring such as mobile phone, and the remote monitoring real-time is descended.
The utility model content
In view of this, the purpose of this utility model is to propose a kind ofly have that cost is low, performance is high, wireless networking, node are easily controlled, long-range and locally all can monitor, be convenient to the Intelligent home monitoring system that mobile device uses.
To achieve these goals, a kind of Intelligent home monitoring system based on built-in Linux that the utility model provides comprises: at least one Zigbee bottom layer node, Zigbee center control nodes, ARM center processor, mobile terminal, GPRS module, Wifi module, IP Camera, sound and light alarm equipment, camera are controlled The Cloud Terrace, mass-memory unit, the local control desk module of liquid crystal touch screen.
Wherein, the Zigbee bottom layer node comprises Zigbee submodule (CC2430), connects intelligent home device, completes perception and control to intelligent home device; The Zigbee center control nodes comprises Zigbee submodule (CC2430), one side is mutual by the control information between the realization of Zigbee wireless communication protocol and Zigbee bottom layer node and state information, control each Zigbee bottom layer node, be connected with the ARM center processor by serial ports on the other hand, and control information and state information submitted to the ARM center processor process; The ARM center processor, framework embedded server on it is processed control information and state information that module in system transmits, receives and respond user's request; Mobile terminal refers to the remote operation terminals such as mobile phone, can sign in to embedded server by its built-in browser, and modules in system is inquired about and controlled; The GPRS module is carried out exchanges data with mobile terminal by wireless mode, and is connected with the ARM center processor, makes ARM center processor and mobile terminal carry out the mutual of information; The Wifi module is connected with the ARM center processor, and it makes system be connected with the internet by wireless mode; IP Camera is connected with the ARM center processor, carries out video acquisition under the control of ARM center processor; Acoustic-optic alarm is connected with the ARM center processor, realizes sound and light alarm when having when breaking under the control of ARM center processor; Camera is controlled The Cloud Terrace and is connected with the ARM center processor, and installation IP Camera on it is rotated to realize the monitoring to arbitrary orientation under the control of ARM center processor; The mass-memory unit carry is used for photo and video file that autostore is captured when abnormal in system; The local control desk of liquid crystal touch screen is connected with the ARM center processor, is to carry out the control terminal of local operation when network interrupts.
Further, family's network monitoring system for things of providing of the utility model can also have such feature: wireless sensor network adopts star-like networking mode.
Further, family's network monitoring system for things that the utility model provides can also have such feature: native system selects Samsung ARM center processor (S3C6410) as flush bonding processor, and moves the Linux2.6.38 system.
Further, family's network monitoring system for things of providing of the utility model can also have such feature: native system is selected pattern access mobile communication net and the internet of GPRS module+Wifi module (wireless network card).
Further, family's network monitoring system for things that the utility model provides can also have such feature: native system is framework low profile edge server (Boa) in embedded system, forms browser/server (B/S) model of web mode.
Further, family's network monitoring system for things of providing of the utility model can also have such feature: native system has been introduced efficient image processing algorithm (motion moves detection algorithm).
Further, family's network monitoring system for things of providing of the utility model can also have such feature: native system adopts the pattern of QT+sqlit database LCD touch-screen as local operating platform.
Further, family's network monitoring system for things of providing of the utility model can also have such feature: native system adopts fuzzy to control to the camera rotary head and to control precision and the high crucial drive apparatus of requirement of real-time.
The utility model effect
Family of the present utility model network monitoring system for things has following effect:
1. the utility model organically is combined into an integral body, the system that the Internet of Things remote monitoring of an intelligence of formation combines with control with wireless sensor network, GPRS mobile communications network, Wifi cordless communication network, ARM embedded system, image processing and fuzzy control etc.;
2. the utility model employing Zigbee of system module connects bottom intelligent home device and ARM center processor, forms wireless sensor network.The Zigbee wireless module adopts star-like networking mode, makes the management of each node convenient and efficient, and flexibility is stronger.And saved a large amount of wirings, and make domestic environment more attractive in appearance, systematic function significantly improves;
3. the utility model system selects Samsung processor (S3C6410ARM) as flush bonding processor, and move linux system on sheet, both solved that the processing speed of using single-chip microcomputer to occur is slow, poor performance, problem that communication capacity is not strong, solved again use PC as the installation and operation cost that processor brings high, do not meet the problems such as energy-conserving and environment-protective require.Native system low-power consumption, stability be strong, splendid network communications capability is arranged;
4. the utility model system adopts GPRS to be connected the wireless medium that is connected with Internet with mobile radio communication with the Wifi module, makes remote real-time monitoring more convenient and flexible;
5. the utility model system framework Boa server in embedded system forms the B/S model of web mode, and the user can be monitored domestic environment by any browser, has removed from the loaded down with trivial details of specific software is installed;
6. the utility model has been introduced the motion algorithm, can process image fast, make prison and control that good combination arranged, the motion algorithm has played good effect at aspects such as the Internet Transmission of moving images detection, video flowing, the candid photograph of monitoring picture and video and preservations, and for other programs and script provide operation-interface, can move according to monitored results the handling procedure of appointment;
The utility model introduced QT+sqlit database LCD touch-screen pattern as local operating platform, so just can well solve the problem of systemic breakdown when network interrupts, the QT touch screen interface is succinctly efficient, is easy to control.And system's service data can be stored in database, in order to systematic function is assessed and each smart machine operating state is inquired about;
8. the utility model system adopts fuzzy to control to drive apparatus as crucial in camera rotary head, solar energy and heating installation suction pump etc., makes system can reach fast and accurately the state of a control of customer requirements.
Description of drawings
Fig. 1 is the utility model illustraton of model based on family's network monitoring system for things of built-in Linux in an embodiment;
Fig. 2 is the utility model ARM center processor in an embodiment and the hardware connection layout of Zigbee module;
Fig. 3 is the utility model processor end Zigbee modular program flow chart in an embodiment.
Fig. 4 is the utility model underlying device end Zigbee modular program flow chart in an embodiment.
Fig. 5 is the utility model system embedment formula Organization Chart in an embodiment.
Fig. 6 is that the utility model GPRS module in an embodiment sends program flow diagram.
Fig. 7 is the utility model Boa server workflow diagram in an embodiment.
Fig. 8 is the utility model motion program flow diagram in an embodiment.
Fig. 9 is the utility model parameters cgi script flow chart in an embodiment.
Figure 10 is the local touch screen operation interface development of the utility model QT in an embodiment flow chart.
Embodiment
Embodiment
With reference to the accompanying drawings the related family's network monitoring system for things of the utility model is elaborated.It should be understood that the present embodiment only to be used for explanation the utility model and be not used in the scope of the present utility model that limits.
As a kind of preferred version of the present utility model, ARM center processor module comprises: the S3C6410 processor, and it is a 32 powerful risc processors; SDRM, it is the space of linux system operation; NAND Flash is used to form root file system, storing documents and code; The DM9000 network interface card is used for being connected to Internet in wired mode; 3 UART serial line interfaces are used for connecting the Zigbee center control nodes and development process is used, and are also that later extended serial port equipment is ready; WM9714 audio decoder chip is used for playing MP3 warning the tinkle of bells; The LCD touch-screen is used for consisting of local control terminal, utilizes QT to control the interface, in the situation that network interrupts and can monitor domestic environment in this locality; SD card slot and jumbo SD card, SD card are to store owing to detecting to break in or camera is taken during the situation such as fire picture and AVI video, in order to inquire about and report to the police use in the future; 3 USB interface are used for the first-class USB device of access shooting; And some peripheral supplementary modules.
As a kind of preferred version of the present utility model, the GPRS module is connected with the ARM center processor by serial ports, make the user carry out remote monitoring to domestic environment by mobile devices such as mobile phones, swarm into or can in time send in the mode of note the user during alarm signal such as fire if detect, the user can carry out remote monitoring to domestic environment by mobile phone browser, can realize comprehensive checking by the rotating camera The Cloud Terrace, can select also to check which zone goes over by controlling the direct fast rotational of The Cloud Terrace.
As a kind of preferred version of the present utility model, the Wifi module makes native system be connected with Internet by wireless mode, and user no matter wired and channel radio crosses any browser and can carry out Real Time Monitoring to domestic environment.When breaking in or during the situation such as fire, system can remind in the mode of Email attachment photo and AVI video that camera is taken to the user.Native system selects the USB wireless network card of linux kernel support as the Wifi module.
As a kind of preferred version of the present utility model, the mode that native system video acquisition end adopts the USB camera to add camera control The Cloud Terrace realizes video acquisition, and the user can comprehensive observing domestic environment without the dead angle by the rotation of controlling The Cloud Terrace.The name that domestic environment is different according to different angle called afters, as TV district (45 degree), conditioned area (90 degree) etc., control by the The Cloud Terrace fuzzy, can rotate to rapidly and accurately situation generation area Real Time Monitoring when having situation to occur and with picture and AVI video storage in the SD card.Sound and light alarm equipment directly is connected with the ARM center processor, can carry out fast sound and light alarm when breaking in.
Native system at first need to be on embedded device successful transplantation support script or the Web server by gateway interface (CGI) function, create dynamic page, comprise the login authentication interface, prevent illegal login.User side only needs just can manage and monitor domestic environment by browser, and is very convenient and practical.What native system used is the Boa server, and Boa is a very small and exquisite Web server, the executable code 60KB that only has an appointment, and the Boa server is supported CGI, its design object is speed and safety.The Boa server all is very suitable for Embedded application scenario at memory space and the memory headroom that operation occupies.Native system adopts being combined in of Boa+CGI to build web server on embedded platform, and the user need not special mounting software can directly monitor domestic environment by browser.
Native system adopts linux as embedded OS, and linux can provide powerful network communication function, has guaranteed real-time and the stability of Internet Transmission.Native system is in the exploitation transplanting that mainly will complete aspect the system works environmental structure based on startup initialize routine (Bootloader), kernel and the root file system of linux system.Bootloader adopts the stable uboot that increases income; Native system adopts linux2.6.38 as the linux kernel; In order to support the use of jumbo Nandflash and wireless network card, system adopts the Yaffs2 file system.In order to allow the hardware facility of system can complete associative operation, native system also needs to complete the exploitation with the driver of serial ports, LCD, SD card, Nandflash, USB, touch-screen, network interface card, audio frequency, Wifi module and the GPRS module etc. of related hardware coupling.
As a kind of preferred version of the present utility model, native system adopts the motion algorithm to solve the problem of moving images monitoring.An embedded IP Camera service routine in motion, it is responsible for collection and the transmission of video flowing, can revise the IMAQ quality by the IP Camera service routine, the parameters such as frame number of catching as wide and height and the per second of image.An embedded moving images trace routine in motion, this program by to camera collection to each frame compare, if two frames element difference mutually reach a threshold value (this threshold value can be revised) judge the event that is moved and trigger the motion event, by research, it is 36400 that native system arranges threshold value, can avoid false alarm and generate accurately the mobile monitor event.Also embedded event notification procedure in motion, it provides a motion to detect interface with external program, and event notice comprises: moving images monitoring event, storage picture reach the higher limit event, store video reaches higher limit event etc.When occuring, a certain event can remove to carry out corresponding script file, as: carry out mail and send script and the sound and light alarm scripts such as script and note transmission when the moving images event occurs; Carry out ancient deed deletion script when the higher limit event occurs when the storage picture reaches, this function is in time to delete ancient deed, and then optimizes SD card memory space, and this file upper limit number can freely arrange according to demand; Carry out ancient deed deletion script when the higher limit event occurs when the storage screen reaches, because video file need occupy large quantity space, this function can well be optimized the SD card space.
The native system remote monitoring is completed by browser, write html user's login interface under the Boa server directory, if subscriber authentication by after jump in the system master page processed, there are the monitoring remote video page, pictures taken browsing pages, shooting AVI screen browsing pages, various parameter that the hyperlink such as the page, the intelligent home device monitoring page are set at the master control page, click these link systems and can call the corresponding dynamic web page of making of the cgic storehouse and realize supervising and control the function that combines, and the motion program is to move always.As click the monitoring remote video page, and can move the cgi script of video streaming and processing, by video render device (cambozola) display video monitoring flow on this webpage, and can be by the rotation of fuzzy regulating and controlling camera The Cloud Terrace; Click the pictures taken browsing pages, can move picture shooting and the cgi script of browsing, realize picture browsing (picture and video successively sort by shooting time) by moving this program; Click the capture video browsing pages, can move video capture and the cgi script of browsing, realize swarming into the candid photograph video tour by moving this program; Click parameter and arrange and can cgi script be set operational factor, this program realizes the setting (comprising the modification of username and password) of parameters, and parameter is stored in configuration file under the Boa server directory, reaches by upgrading this file the purpose of revising parameter.These parameters have the maximum number of files of login username, user cipher, SD card, acousto-optic alarm switch, user notification phone number, the setting of various Smart Home parameter and motion parameter to arrange etc.;
As a kind of preferred version of the present utility model, native system to be had no progeny in network and can't have been increased the local monitor platform to the problem that domestic environment is controlled in order to solve.Native system selects QT+ database (sqlit)+LCD touch-screen as the local monitor platform.QT is the graphic interface Development Framework of supporting linux, and the local exploitation of controlling the interface of system is mainly carried out under QT development environment (QT Creator).The sqlit database is a light-duty database, it is the correlation data base management system of observing ACID, its design object is embedded OS, as long as it is transplanted in native system and can effectively manages system data, and the database that creates carries out related with configuration file in the Boa server.The LCD touch-screen is the terminal of carrying out local operation.Operation interface comprises; Operating main interface, security monitoring sub-interface, parameter configuration sub-interface, Smart Home controls sub-interface, the inquiry of Smart Home operating state sub-interface etc. and controls the interface.
As a kind of preferred version of the present utility model, drive apparatus as crucial in camera rotary head, solar energy and heating installation suction pump etc. adopts fuzzy to control, give an input value (angle or position etc.) at long-range or local control terminal, according to fuzzy PID algorithm, controlled device is exported a control signal, the effect of controlling to reach fast and stable.
Fig. 1 is the utility model system model figure based on family's network monitoring system for things of built-in Linux in an embodiment.As shown in Figure 1, native system mainly comprises: several Zigbee bottom layer node, Zigbee center control nodes, ARM center processor, mobile terminal, GPRS module, Wifi module, IP Camera, sound and light alarm equipment, camera are controlled the modules such as The Cloud Terrace, mass-memory unit, the local control desk of liquid crystal touch screen.Intelligent home device and various transducer are connected with the Zigbee bottom layer node, the ARM center processor is connected with the Zigbee center control nodes, each node of Zigbee has formed a star-like wireless sensor network, the Zigbee center control nodes is exactly the center of Star Network, wireless sensor network is connected the ARM center processor the organic connection of smart machine together with bottom, and Zigbee center control nodes and ARM center processor carry out data communication by serial ports.Consist of the B/S model by framework Boa server on the S3C6410ARM center processor, realize the remote browser monitoring function.The motion algorithm is the core of video monitoring, controls IP Camera by the external interface that motion provides, and the detection of moving images and event notice are completed the storage of monitoring picture and video, and reported to the police by sound and light alarm equipment.Native system webpage dynamic function is completed by cgi script, as realize prison and the control to the bottom intelligent home device by cgi script.Native system is connected with mobile device by the GPRS module, realizes long-range monitoring whenever and wherever possible, is connected with Internet by the Wifi module, makes the whole system accessing Internet, forms family's Internet of Things.Native system also adopts fuzzy to control to the crucial drive apparatus such as camera rotary head, solar energy and heating installation suction pump, makes and controls effect more quick and precisely.
Fig. 2 is the utility model ARM center processor in an embodiment and the hardware connection layout of Zigbee module.Link together by serial ports between S3C6410 and CC243O, because S3C6410 and CC2430 serial ports are all Transistor-Transistor Logic levels, thus need not level conversion between the two, can be direct-connected, as shown in Figure 2.
Fig. 3 is the utility model processor end Zigbee modular program flow chart in an embodiment.ARM center processor end communicates by serial ports and CC2430, at first system opens serial equipment by the bottom serial port drive as shown in Figure 3, and the serial communication baud rate is set, be set to 38400 herein, then configure the attributes such as serial ports I/O option standard, control inputs option standard, this moment, one was send-thread by two threads of fork function creation, one is receiving thread, can receive and dispatch parallel processing like this.Check to send whether be ready to, by wireless transmission circuit, the data in the serial ports transmit buffer are sent after being ready in send-thread.Whether the receiving thread inspection receives data, if receive ready receive data, and the data that receive are resolved, according to the different cgi script of call by result of resolving, realize the function of appointment.
Fig. 4 is the utility model underlying device end Zigbee modular program flow chart in an embodiment.The Zigbee protocol stack moves in CC2430, and the core of CC2430 is a single-chip microcomputer, therefore will want the Zigbee module work of bottom also to need it is programmed.Bottom Zigbee modular program is completed under IAR Embedded Workbench development environment.As shown in Figure 4, at first CC2430 first carries out initialization to hardware abstraction layer, Zigbee protocol stack after powering on, and waits for that then the ARM center processor issues its order, order is resolved after receiving order, if networking commands is namely set up Zigbee network.Begin afterwards the monitoring wireless signal, add the application signal if listen to new node, for node distributes the address, continue monitoring signal without application.The Zigbee bottom layer node also receives by the mode of interrupting the order that S3C6410 sends, and comes to send corresponding control information to terminal according to order.
Fig. 5 is the utility model system embedment formula Organization Chart in an embodiment.The native system core is by the embedded Boa server reception of framework and completes various monitor tasks, and the core algorithm of system is the motion algorithm, and as shown in Figure 5, complete schematic structure and function also needs to transplant following program and library file:
Wireless_tools: it is the tool set of wireless network card, and these instruments have been arranged, and wireless network card just can be completed configuration and be connected.
Zlib: the function library that provides data compression to use
Libid3tag:MP3 file id3 label is analyzed the storehouse
Libmad: high accuracy mpeg audio decoding storehouse
Alsa-lib: it is the senior Linux sound of ALSA(framework) the storehouse, it provides the support of audio frequency and MIDI on (SuSE) Linux OS, it is sound subsystem classical in Linux.
Alsa-utils: it is the tool set of sound subsystem, as regulating volume by it.
Boa: it is the built-in small server, supports the web server of CGI and script to consist of the B/S structure
Cgic: it is the standard C storehouse of powerful support CGI exploitation, and CGI is the interpreting user input command, and produces corresponding processing or corresponding information is fed back to browser at server.
Ffmpeg: it is Audio and Video stream solution, and it provides and recorded, changed and the total solution of fluidisation audio frequency and video.Coding of graphics in corresponding diagram 5.
Libavformat: be used for generation and the parsing of various audio frequency and video encapsulation format, comprise and obtain the decoding information needed to generate the decoding context mechanism and to read the function such as audio/video frames.Screen stream format conversion in corresponding diagram 5.
Libavcodec: the Code And Decode that is used for all kinds sound/picture.Screen coding in corresponding diagram 5.
Libavutil: comprise some public tool functions.
Cambozola: to the support (the java environment must be installed) of video render.
Fig. 6 is that the utility model GPRS module in an embodiment sends program flow diagram.As shown in Figure 6, after GPRS module power-up initializing, connect with GPRS network, this moment is by GGSN(GPRS support node gateway) distribute an IP address and connect with external network for it is dynamic.if the note request is arranged, at first the ARM center processor sends " AT+CMGF=1 " and orders the module to GPRS, select the short message types of text formatting, then send " AT+CSCA=＜string〉" short message service center's number is set (as string=+86188xxxx2003, after fill order, module is returned to OK), send at last " AT+CMGS=＜string〉" order (string is the purpose phone number), return to "〉Deng the GPRS module " content that can send SMS message after symbol, its content is the picture that abnormal alarm content and camera candid photograph appear in domestic environment, as breaking out of fire, break in etc.
Fig. 7 is the utility model Boa server workflow diagram in an embodiment.As shown in Figure 7, after Boa server successful installation, by revising the Boa server profile, the user logins the CGI dynamic web page and is set to initial accessed web page, and username and password is deposited in user file., fetch by each chain in the click homepage and call different cgi scripts, and change each subpage frame over to by the laggard monitoring page of becoming owner of of authentication as the user.Static Web page, cgi script, function script are deposited under the embedded system root file system in the web catalogue.
Fig. 8 is the utility model motion program flow diagram in an embodiment.Motion is the core algorithm of native system, and as shown in Figure 8, it mainly completes three functions: the first, realize the processing to image, it by each frame is carried out vector to recently completing the detection of moving images and producing corresponding event notice; The second, it has completed collection and the processing of Linux video (v4l2), and realizes Real Time Monitoring with the form of screen stream; The 3rd, complete the remote access of http and the network transmission function of communications packets (socket).Can complete different settings by revising configuration file.
Fig. 9 is the utility model parameters cgi script flow chart in an embodiment.As shown in Figure 9, the major part of native system control function is to complete by the form of CGI dynamic web page.Be exactly typically wherein the interface that arranges of system, system arranges in the page and comprises: the maximum number of files of user name, monitoring client cell-phone number, monitoring client mailbox, the Push And Release of various condition monitorings, the senior setting of motion, SD card and various Smart Home arrange etc.System is entering the default setting that a parameters is arranged when the page is set, can modify to setting on the default setting basis, click and submit to key again to write back to amended parameters setting in configuration file, and generate the new configuration page, extract last amended configuration information and generate new page when accessing this page next time from configuration file.
Figure 10 is the local touch screen operation interface development of the utility model UI in an embodiment flow chart.Native system is to adopt the form of QT+sqlit database LCD touch-screen as local operating platform.The exploitation at QT interface is completed under the QT/E embedded-development environment, at first will set up the QT/E development environment, and basic step can be described as: decompress(ion), compile, set up ARM environmental variance file, transplant QT dynamic base and character library.Be the exploitation of operation interface with that, development process as shown in figure 10.The sqlit database is introduced for state information and the control information of better management equipment, in order to data are derived and inquire about.Development data storehouse application program on the ARM-Linux platform, each built-in function that must utilize lane database to provide, therefore must carry out cross compile to the source code of sqlite before exploitation, generate relevant library file, be transplanted in the ARM center processor and move.Basic step can be described as: decompress(ion), set up cross compilation environment, configuration, compiling and install, peel off Debugging message and optimize library file.Install and create a database after library file, and it and configuration file are carried out related, so just can database be operated by each function that database provides.The LCD touch-screen is the hardware carrier of local monitor platform, must transplant LCD touch-screen driver when using the LCD touch-screen.Native system selects touch-screen driver and the compiling that kernel provides to advance in kernel.
The effect of embodiment and effect
In sum, the family's network monitoring system for things based on built-in Linux that the utility model proposes, by introducing the Zigbee wireless sensor network, the management that makes controlled node is adding system and convenient more; Introduce technology of Internet of things, thus when having changed traditional supervisory control system and can't carry out network implementation prison with control combine shortcoming; Set up web server at embedded device, make the user carry out remote monitoring by browser to domestic environment anywhere; Introduce GPRS, Wifi module, make the remote mobile monitoring become possibility; Introduce the QT touch-screen and control the interface, the user can in the situation that network interrupt monitoring in this locality; Introduce Fuzzy PID Control Technique, make the control of crucial drive apparatus more in real time with accurate.This utility model makes that supervisory control system is convenient, hommization, and carries out deposit work for setting up the large size city Internet of Things.
Claims (8)
1. family's network monitoring system for things based on built-in Linux, be used for intelligent home device is carried out intelligent monitoring, it is characterized in that, comprising: at least one Zigbee bottom layer node, Zigbee center control nodes, ARM center processor, mobile terminal, GPRS module, Wifi module, IP Camera, sound and light alarm equipment, camera are controlled The Cloud Terrace, mass-memory unit, the local control desk module of liquid crystal touch screen.
Described Zigbee bottom layer node comprises Zigbee submodule (CC2430), connects intelligent home device, completes perception and control to described intelligent home device;
Described Zigbee center control nodes comprises Zigbee submodule (CC2430), one side is mutual by the control information between the realization of Zigbee wireless communication protocol and described Zigbee bottom layer node and state information, control all described Zigbee bottom layer node, be connected with described ARM center processor by serial ports on the other hand, and control information and state information submitted to described ARM center processor process;
Described ARM center processor, framework embedded server on it is processed control information and state information that module in described system transmits, receives and respond user's request;
Described GPRS module is carried out exchanges data with described mobile terminal by wireless mode, and is connected with described ARM center processor, makes described ARM center processor and described mobile terminal carry out the mutual of information;
Described Wifi module is connected with described arm processor, and it makes described system be connected with the internet by wireless mode;
Described IP Camera is connected with described ARM center processor, carries out video acquisition under the control of described ARM center processor;
Described acoustic-optic alarm is connected with described ARM center processor, realizes sound and light alarm when having when breaking under the control of described ARM center processor;
Described camera is controlled The Cloud Terrace and is connected with described ARM center processor, and the described IP Camera of installation on it is rotated to realize the monitoring to arbitrary orientation under the control of described ARM center processor;
Described mass-memory unit carry is used for photo and video file that autostore is captured when abnormal in described system;
The local control desk module of described liquid crystal touch screen is connected with described ARM center processor, is to carry out the control terminal of local operation when network interrupts;
2. family according to claim 1 network monitoring system for things, it is characterized in that: described system adopts star-like networking mode;
3. family according to claim 1 network monitoring system for things, it is characterized in that: described system selects Samsung arm processor (S3C6410) as flush bonding processor, and operation Linux2.6.38 system;
4. family according to claim 1 network monitoring system for things, it is characterized in that: described system selects pattern access mobile communication net and the internet of GPRS module+Wifi module (wireless network card);
5. family according to claim 1 network monitoring system for things, it is characterized in that: described system is framework low profile edge server (Boa) in embedded system, forms browser/server (B/S) model of web mode;
6. family according to claim 1 network monitoring system for things, it is characterized in that: described system introduces efficient image processing algorithm (motion moves detection algorithm);
7. family according to claim 1 network monitoring system for things, it is characterized in that: described system adopts the pattern of QT+sqlit database LCD touch-screen as local operating platform;
8. family according to claim 1 network monitoring system for things, it is characterized in that: described system adopts fuzzy to control to described camera rotary head and to control precision and the high crucial drive apparatus of requirement of real-time.
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