CN101436351A - Network multimedia center control system - Google Patents
Network multimedia center control system Download PDFInfo
- Publication number
- CN101436351A CN101436351A CNA2008101826511A CN200810182651A CN101436351A CN 101436351 A CN101436351 A CN 101436351A CN A2008101826511 A CNA2008101826511 A CN A2008101826511A CN 200810182651 A CN200810182651 A CN 200810182651A CN 101436351 A CN101436351 A CN 101436351A
- Authority
- CN
- China
- Prior art keywords
- module
- network
- network multimedia
- multimedia central
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Information Transfer Between Computers (AREA)
- Electrically Operated Instructional Devices (AREA)
Abstract
The invention relates to a network multimedia central control system, which comprise a campus network and a multimedia classroom. The campus network is connected with a management platform and a network multimedia central controller which is arranged in the multimedia classroom and consists of a main control MCU module, an audio-video switching circuit, a VGA converter, a projector controller, an ID card reader, an infrared transmitting/receiving circuit, a programmable I/O output circuit, a computer interface, a long wire driving circuit, a keyboard interface, a warning circuit, and the like; and the network multimedia central controller is connected with each multimedia teaching equipment arranged in multimedia classrooms. The system adopts projector control code management, monitors the graphic management platform obviously and in real time, carries out centralized management of running state, remote control and equipment theft prevention of numerous equipment in the classroom, use rights and control rights of each equipment, and the like, pushes a brand-new height, and has the advantages of practicability, economy, convenience, advance, convenient operation, stability and good expansibility.
Description
Technical field
The present invention relates to the multimedia teaching control technology, particularly a kind of network multimedia central control system.
Background technology
Along with development of science and technology, we have entered the information age of a high speed development, are that the multimedia and the communication technology of core is widely used in various fields with the computer technology.In education sector also is the same, and along with the renewal of technology and the downward modulation of equipment price, multi-media classroom throughout the country, especially each school of coastland popularizes and comes.Multi-media classroom is student's abundant, excellent, changeable various computer cultures of having taken, and the form of teaching that both pictures and texts are excellent has not only been alleviated teacher's labour intensity on class, also satisfied cultivate have new technology, the intensive talent's of new knowledge needs.Multi-media classroom is made up of equipment such as control in one or more computer, projector, curtain, power amplifier, the multimedia, sound system and DVD basically.Yet increasing but of multi-media classroom brought a lot of new problems to the keeper.
Since two thousand one, the construction quantity straight line of multi-media classroom increases, and along with increasing of input in education, the input of multi-media classroom will be growing on and on.Quantity with 100 multi-media classrooms is example, and these multi-media classrooms are distributed in different housing-groups, and great majority are open classroom.How to administer and maintain the multimedia equipment that is dispersed in each teaching building, guarantee carrying out smoothly of teaching; How to guarantee that equipment do not abused by the student in the time after school, accomplish equipment is effectively used, prolong the serviceable life of equipment; The more important thing is the device security that how to guarantee to be worth about ten million Renminbi, avoid property loss or the like problem to become the focus that the leader of school and management of multimedia equipment center are concerned about the most gradually.
Increasing of multi-media classroom, what bring is managerial problem.The purpose that school drops into huge fund is for the academics and students creates better teaching environment, does not have the classmate or the social personnel of part to use the resource of multi-media classroom to carry out other activities without authorization in unplanned time but do not get rid of.Like this, the resource of multi-media classroom is not only effectively utilized, and also can directly have influence on normal teaching order owing to using the risk of bringing device damage without authorization.
At present, in order to guarantee the effective use and the device security of multi-media classroom, the Educational Affairs Office by the OA system discharged each timetable of using of multi-media classroom in term, for each multi-media classroom configuration device power supply lock, carry out the use and management of multi-media classroom by the entrance guard of each housing-group again.Teacher must go to the entrance guard place of each housing-group to get the key of this multi-media classroom, and must be returned to corresponding entrance guard place after after class before using multi-media classroom.Yet, in the management process of reality, 3-5 teacher taken place to I haven't seen you for ages within one week and forgotten the situation that key is directly got back to office or gone to other classrooms of giving back after class in each housing-group, also have and teacher is taken place forget and close multimedia equipment, directly take out the situation that key returns to the entrance guard and exist.So just be difficult to guarantee someone will use the resource of multi-media classroom, watch NBA action etc. by multi-media classroom after class such as the classmate's association that has in unplanned time.
Secondly, long slightly aged teacher of some ages is arranged also, since not dark to the contact of IT technology, can not use or the faulty operation multimedia equipment.Thus, in case the generation problem, the keeper will serve as interim fireman, rush towards the scene at any time.Perhaps, ask teacher to change a multi-media classroom without hesitation.And in fact, maximum problems is exactly that the state dislocation and the teacher of projector switch estimates projector open-interval mistake.
The more important thing is, equipment increase the hidden danger of also having brought more secure contexts.Especially be worth the optimum target that things such as the high still CPU that volume is little, internal memory always are many thieves.How to take the effective precautionary measures, always be the problem that managerial personnel and the leader of school are concerned about very much.
Summary of the invention
For remedying above-mentioned deficiency, the invention provides the various multimedia equipments of a kind of concentrated controling management, use simple to operate clear, avoid the improper operation of user, realize concentrated controling management (must not dependency network), intelligent management by network, can start authority automatically according to course arrangement, according to parameter is set, open and close automatically system, can realize the network multimedia central control system of burglar alarm.
Network multimedia central control system of the present invention, comprise campus network, supervisory control comuter, multi-media classroom, wherein: be connected with at least one management platform and several on the described campus network and be located at network multimedia central controller in the described multi-media classroom, described network multimedia central controller connects the multimedia teaching facility in the place multi-media classroom separately.
Network multimedia central control system of the present invention, wherein: described management platform is equipped with management platform software for connecting the network computer of campus network in it.
Network multimedia central control system of the present invention, wherein: described management platform software comprises that management platform master routine, User Interface, database, backstage regularly inquire about thread, TCP/IP and window networking storehouse, and described management platform software is connected described campus network by TCP/IP with the window networking storehouse.
Network multimedia central control system of the present invention, wherein: described management platform master routine comprises equipment control controller module, parameter configuration device module, database manager module and log manager module, and the association attributes function C Room class, classroom single-track link table function C RoomList class, the slave computer port that are provided with equipment status parameter and middle control machine are monitored function C ListenSocket class, slave computer port communication function C ServerSocket class.
Network multimedia central control system of the present invention, wherein: described User Interface is provided with pattern and the mark corresponding to each network multimedia central controller and connection device thereof, and each pattern can be presented at the state of using by the conversion color.
Network multimedia central control system of the present invention, wherein: described management platform software moves according to the following steps:
1) from database, reads classroom classification and classroom information.Set up corresponding C Room object;
2) initialization socket storehouse;
3) set up CListenSocket object and begin to monitor;
4) set up CListenSocket object and begin to monitor;
5) create a timing and inquire about sub-thread, be used to inquire about the equipment state of each network multimedia central controller;
6) open a clock, whether planned task needs to carry out to be used for regularly inquiry;
7) initialization user interface;
8) the slave computer connection request is waited on the backstage, and user's operation is waited on the foreground.
Network multimedia central control system of the present invention, wherein: described network multimedia central controller is by main control MCU module, frequency switch circuit, video switch circuit, the VGA converter, logical circuit, projector's control, the ID card reader, infrared emission/receiving circuit, programmable I/O output circuit, computer interface, long line drive circuit, keyboard interface, the direct current control module, alternating current control module and warning circuit are formed, described frequency switch circuit, video switch circuit is connected described main control MCU module with the VGA converter by logical circuit, described keyboard interface connects described main control MCU module by described long line drive circuit, the control of described projector, the ID card reader, infrared emission/receiving circuit, programmable I/O output circuit, computer interface, the direct current control module, the alternating current control module directly is connected described main control MCU module with warning circuit.
Network multimedia central control system of the present invention, wherein: described network multimedia central controller is equipped with by hardware communication module, device control module, middle control parameter the embedded software that module, middle keyholed back plate reason module, equipment usage log module, teacher ID card management module and managing software module are formed is set.
Network multimedia central control system of the present invention, wherein: described managing software module is provided with module, management information system module and control/maintenance/statistical system module three parts by the systematic parameter initialization and forms.
Network multimedia central control system of the present invention, wherein: described systematic parameter initialization is provided with module and is included in line search connexon module, basic parameter submodule and control code read-write submodule are set.
Network multimedia central control system of the present invention, wherein: described management information system module comprises keyholed back plate reason submodule, classroom computer management submodule, equipment control and statistics submodule in rights management submodule, the classroom, teacher ID card management submodule and curriculum schedule management submodule.
Network multimedia central control system of the present invention, wherein: described control/maintenance/statistical system module comprises equipment usage log submodule, capacity utilization statistics submodule, equipment alarm detection sub-module, remote computer controlling sub, remote equipment operation submodule and task scheduling submodule.
Network multimedia central control system of the present invention, wherein: the main process of described management information system module comprises initialize process, TCP/IP service processes, application process, TCP connection process, keyboard service processes and monitoring process.The priority of described initialize process, TCP/IP service processes, application process, TCP connection process and keyboard service processes and monitoring process is arranged from high to low in the following order: initialize process, application process, TCP/IP service processes, monitoring process, TCP connection process, keyboard service processes.
Network multimedia central control system of the present invention, wherein: described initialize process carries out according to the following steps:
1) guiding finishes, and enters principal function;
2) create initialize routine, initialization operation system;
3) initialization apparatus parameter;
4) initialization user-variable;
5) Flash initialization;
6) serial ports initialization;
7) send the keyboard feedback code, inform that keyboard oneself just starts;
8) network parameter initialization, the storehouse initialization;
9) interrupt initialization (network and security protection):
10) create TCPIP process, creation-time treatment progress;
11) start application layer;
12) finish this process.
Network multimedia central control system of the present invention, wherein: described application process is carried out according to the following steps:
1) enters application layer;
2) timer initialization;
3) create the TCP connection process;
4) hang the UDP service function;
5) create the keyboard managing process;
6) create monitoring process.
Network multimedia central control system of the present invention, wherein: described TCP connection process carries out according to the following steps:
1) the outstanding message amount discharges;
2) Sleep is two seconds;
3) set up a TCB (TCP control block);
4) as successfully returning step 1;
5) return step 1 after the unsuccessful release semaphore.
Network multimedia central control system of the present invention, wherein: described keyboard service processes carries out according to the following steps:
1) initialization peripherals;
2) occlusion detection serial ports has data just to read in;
3) simple effect, step 1 is returned in the effect failure;
4) effect success, keyboard commands are resolved and are carried out, after return step 1.
Network multimedia central control system of the present invention, wherein: described monitoring process is carried out according to the following steps:
1) Sleep is 1 second;
2) the power switch lock detects, and carries out;
3) is set the house dog time;
4) if connectLose〉10, return step 1, if connectLose＜=10;
5) discharge TCB, release semaphore, connectLose=20 returns step 1.
Network multimedia central control system of the present invention, advanced network technology and multimedia technology have been adopted, realized the management of projector control code, come into plain view/monitoring in real time, patterned management platform software, show the nearly equipment running status in tens classrooms with screen, and can carry out Pagination Display according to different teaching buildings; The right to use of the numerous equipment running status of multi-media classroom, Long-distance Control, theft protection for devices, various device, control etc. are managed concentratedly by network, combined with intelligent desktop control, fast operating function, intellective IC card system, infrared remote control, infrared alarm etc. are pushed the modernization level in network multimedia classroom to a brand-new height, system's practicality, economy, convenience, advanced person, easy to operate, stable, and have good extendability and easily connect human nature.
Description of drawings
Fig. 1 is the schematic block diagram of network multimedia central control system of the present invention;
Fig. 2 is that the equipment of network multimedia central control system of the present invention connects topological diagram;
Fig. 3 is the software block diagram of network multimedia central control system management platform of the present invention;
Fig. 4 is the software flow pattern of network multimedia central control system management platform of the present invention;
Fig. 5 is the user interface synoptic diagram of network multimedia central control system management platform of the present invention;
Fig. 6 is the circuit block diagram of network multimedia central control system network multimedia central controller of the present invention;
Fig. 7 is the initialization module synoptic diagram of network multimedia central control system network multimedia central controller software of the present invention;
Fig. 8 is a network multimedia central control system network multimedia central controller software administration maintenance module synoptic diagram of the present invention;
Fig. 9 is a network multimedia central control system network multimedia central controller operating table surface synoptic diagram of the present invention;
Figure 10 is a network multimedia central control system network multimedia central controller software process layer synoptic diagram of the present invention;
Figure 11 is network multimedia central control system network multimedia central controller software process priority figure of the present invention;
Figure 12 is a network multimedia central control system network multimedia central controller initialize process process flow diagram of the present invention;
Figure 13 is a network multimedia central control system network multimedia central controller application process process flow diagram of the present invention;
Figure 14 is a network multimedia central control system network multimedia central controller TCP connection process process flow diagram of the present invention;
Figure 15 is a network multimedia central control system network multimedia central controller keyboard service processes process flow diagram of the present invention;
Figure 16 is a network multimedia central control system network multimedia central controller monitoring process process flow diagram of the present invention.
Figure 17 is a network multimedia central control system network multimedia central controller VGA modular circuit block diagram of the present invention.
Embodiment
For further setting forth network multimedia central control system of the present invention, do more detailed explanation below in conjunction with embodiment.
Fig. 1 is the schematic block diagram of network multimedia central control system of the present invention, and Fig. 2 is that the equipment of network multimedia central control system of the present invention connects topological diagram.
Network multimedia central control system of the present invention comprises campus network, supervisory control comuter, multi-media classroom, be connected with management platform and several on the campus network and be located at network multimedia central controller in the described multi-media classroom, the network multimedia central controller connects the multimedia teaching facility in the place multi-media classroom separately, as multimedia computer, central authorities' main control system button control panel, projector, educational technology equipments such as show stand, power amplifier, audio amplifier, microphone (a configurable wireless collar microphone and a wireless handheld microphone), screen, the burglar alarm module, DVD VCR etc.
Management platform is a Net-connected computer, and management platform software V2.0 is housed.
For convenient, manage multimedia equipment intuitively, we adopt humanized design concept, graphical displaying scheme, it is simple, practical to make every effort to user interface.The centralized management platform integrates functions such as monitoring of tools, data base administration, log management, parameter configuration, is the higher management of whole network multimedia Classroom System, also is the main administration interface (see figure 5) of leading subscriber.
Management platform V2.0 is provided with four basic function modules altogether, is respectively the equipment control controller: be used for the parameter configuration that each network is controlled, and remote monitoring is connected in the network all devices in the control, handles alerting signal etc. simultaneously.Parameter configuration device: be used for (suggestion are only used by the engineering technical personnel of producer) such as IP address that configuration network controls, serial ports parameters.Database manager: the fulfillment database operation, such as class management, teacher management, projector's model management etc.Log manager: write down operating position, alarm logging of all online equipment etc. whenever and wherever possible; Managerial personnel can check very easily, and can export as the EXCEL format file, are convenient to sum up and the arrangement (see figure 3).
The explanation of master control management platform software architecture
Main class introduction:
The CRoom class: the classroom has encapsulated each equipment status parameter in the classroom and the association attributes of middle control machine.
The CRoomList class: classroom tabulation, all classrooms are put among the single-track link table, be convenient to search, and management.
CListenSocket class: be responsible for monitoring some ports, connect in case detected the slave computer request, with regard to a newly-built CServerSocket object.
CServerSocket class: be responsible for carrying out Socket communication, transceive data with slave computer.
Management platform is moved (see figure 4) according to the following steps:
1) from database, reads classroom classification and classroom information.Set up corresponding C Room object;
2) initialization socket storehouse;
3) set up CListenSocket object and begin to monitor;
4) set up CListenSocket object and begin to monitor;
5) create a timing and inquire about sub-thread, be used to inquire about the equipment state of each network multimedia central controller;
6) open a clock, whether planned task needs to carry out to be used for regularly inquiry;
7) initialization user interface;
8) the slave computer connection request is waited on the backstage, and user's operation is waited on the foreground.
Management platform software startup process
1. software startup is finished later main interface as shown above.CListenSocket monitors certain specific port, waits for that slave computer connects.In case new connection is set up successfully, the CListenSocket ACCEPT incident of can setting out, in the processing function of this incident, CRoom can call her Activate () method, create a CServerSocket object and come to carry out data communication, simultaneously this classroom is become colored the demonstration with the slave computer in this classroom.As above " (1) number building 202 " among the figure.
2. the backstage has an equipment state regularly to inquire about sub-thread.This thread is responsible for timing to slave computer transmitting apparatus status inquiry command, is used for upgrading the state of these equipment.For each online classroom, this thread 5s at interval sends the one query order.GetTickCount () function clocks.
Do not surpass 10s if 3. receive the feedback information of slave computer, program then can be called the Inactive () method of CRoom, closes the socket of CServerSocket object, and deletes this object, simultaneously this classroom grey is shown, show that this classroom is in the broken string state.
4. wait for user command: equipment general supply, projector, electronic curtain, custom parameter inquiry and configuration.
5. receive the slave computer packet.After the packet of receiving from slave computer, the CServerSocket class can trigger a RECEIVE incident, and in the processing function of this incident, master routine can carry out protocol analysis and command analysis to packet.Do corresponding processing at last.
Software closes the inverse process that closed procedure is equivalent to start-up course.
Management platform can realize following function:
1. monitor certain network port, wait for that setting up TCP with slave computer is connected, the quantity of slave computer is arbitrarily.
2. can carry out the TCP communication with slave computer arbitrarily.(sending commonly used command, status inquiry command etc.)
3. regularly read the status information of equipment of slave computer.(detection goes offline)
4. regularly send some order (plan target) to one or more slave computer
The equipment state that 5. can write down slave computer changes, and generates daily record
6. can read and dispose the custom parameter of slave computer
The network multimedia central controller adopts 32 ARM single-chip microcomputers as main control chip, and Zhou Ligong EasyARM 2200 development boards were transplanted on the suitable chip before product is gone into operation as development platform again.
Network multimedia central controller software uses UCOS-II operating system, increases the ICP/IP protocol stack on this basis, realizes serial communication, keyboard commands, and expansion is some other such as the function aspect electrical equipment control, the signal switching on this platform.The master control management software uses VC++6.0 as developing instrument, cooperates the Access database.
Hardware capability module (see figure 6):
(1) audio frequency switches
(2) video switch
(3) VGA switches
(4) infrared learning module
(5) projector's serial ports is write sign indicating number
(6) the long line of keyboard drives
(7) relay control module
(8) equipment alarm detection module
(9) power supply managing
(10) programmable I/O mouth module
Particular hardware design part:
1, audio switch: audio interface 5 tunnel inputs, 2 tunnel outputs.Output is any one tunnel of input.Adopt logic level to switch (seeing Figure 17).
2, video switcher: (the same)
3, VGA signal shifter: 3 advance 2 goes out.Adopt logic level to switch.
4, infrared learning module: the infrared learning circuit, read the infrared sign indicating number of telepilot, and it deposited in the storer.
5, the long line drive circuit of keyboard: keyboard circuit and main frame are separated, long line drive circuit is provided.
6, programmable I/O expansion: draw other standby IO mouths among the MCU, just have he is programmed, expand other functions.
7, warning circuit design: adopt interrupt mode or adopt the level scan mode to carry out alarm detection.
The VGA module mainly is to be used for various VGA signals are switched and distribute, and allows the user switch the various video resources of unified management easily at various VGA equipment rooms.More common VGA input equipment has desktop computer, notebook, exhibition booth etc. now, and output device then has: display, projector etc., in our first published, main hope realizes that 3 go into 2 functions that go out.We need 3 road VGA and go into (VGA1 VGA2 VGA3), and our commutation circuit of process is chosen road signal wherein, and then by distributor circuit, this road circuit is divided into two outputting VGAs 4, and this two-way outputting VGA 4 is the same (seeing Figure 17).
The attainable function of network multimedia central controller has:
2. the local control function of classroom end: can concentrate multimedia equipment in the switching controls classroom by control in the network of classroom end.
3. electronic lock control: this system can be equipped with corresponding supporting desktop, control electronic lock during this desktop has.Can this desktop be opened with common key in the use, by desktop control or control computer all devices be operated then; Also can open or close by the long-range electronic lock of the central control computer on this network with this equipment.This function is very convenient in the centralized management and the control of system, and does not need independent cloth control line.
4. telemanagement: this equipment can be realized Long-distance Control, management and inquiry by LAN.For example: we can inquire about the equipment of the accumulation service time of projector, current use, the lifting of curtain etc. by any computing machine through mandate on this network, also can control the equipment in the system.
5. batch facility: management system can be carried out unified control to selected classroom, as selected several classrooms, carry out middle control and the equipment that selected classroom can be opened, be closed to " system opens " or " system pass " then, thereby remove open and close one by one loaded down with trivial details from.
6. highly compatible: Control Software also projection support machine control protocol is now filled out existing usefulness.Can compatible all on the market projector apparatus.
7. volume is regulated: the embedded digital volume is regulated, and the adjusting volume is lighter.
8. expand RS232 serial ports control function: overstable device control function, a RS-232 serial signal interface and a RS485 signaling interface are provided, switch with projector, demoder (The Cloud Terrace, camera lens), matrix.
The attachable hardware configuration of network multimedia central controller is a (see figure 2):
1. multimedia computer: the main carrier of multimedia teaching.
2. central main control system button control panel: the teacher provides the most succinct control mode in order to give a lesson.
3. educational technology equipment such as projector, show stand: the basic configuration of electronic teaching.
4. power amplifier, audio amplifier: the outlet terminal of voice signal.
5. microphone: the configurable wireless collar microphone in each classroom and a wireless handheld microphone during conceptual design.Wireless collar microphone uses when the wireless handheld microphone is then made a speech for the student for the speaker who often walks about uses.
6. screen: can adopt manual screen, also can adopt electronic screen.
7. burglar alarm module: reconnaissance is installed, and guarantees device security.
8.DVD VCR etc.: for the specific outfit in classroom that needs is arranged
Wherein, indispensable equipment is projector, curtain, power amplifier, sound equipment, desktop computer, microphone.
Multi-media classroom has following basic function:
1. system's opening and closing step instruction customization, singly-bound start, singly-bound shutdown.
2. projector's time-delay power supply is protected bulb life.
3. choose the projector model from database, in line writing projector control code; Do not need physical operations, easily manage projector.
4. adopt the campus Ethernet, need not special wiring and can realize and being connected of pulpit.
5. 32 MCU of technical grade and Ethernet interface, independent IP does not have conflict in the address.
6. all-in-one campus card connects, and realizes rights management, the start of swiping the card.(alternative)
7.4*1 the road audio-video signal switches, 3*2 road VGA signal switches.(alternative multichannel switching)
8. device power supply (DPS) management, teaching equipment power supplys all in the classroom are managed concentratedly.(light control, air-conditioning, electric fan etc. can be alternative)
9. audio frequency, 32 grades of digital volumes are regulated.(alternative)
Also have following expanded function:
1. Long-distance Control.Long-range ON/OFF: equipment general supply, projector, training computer, light, electronic curtain, dais electronic lock.And whether need can select colony's control, and simultaneously a plurality of classrooms are operated.
2. remote status shows.Control in the demonstration, projector, training computer, electronic lock switch state, light.Can also show according to the user mode piecemeal of equipment, distinguish easily.
3. antitheft/fireproof alarming.System possesses distinctive antitheft, fire prevention interface, and when detector perceives dangerous situation, system can send alerting signal by campus network to main control computer and corresponding warning node at once.
4. plan target management, DSC framework; The keeper can be own or authorized company according to school timetable then control in all classrooms is planned to set, also can carry out classroom application plan arrangement according to new needs.
5. system journal; Write down each projector bulb service time, write down each classroom operating position, can export as the Excel document, be convenient to year-end summary and analysis.
6. data base administration; Classroom database, teacher database, projector database provide the rich data basis for management, can also carry out the expansion on upper strata according to school's needs.
7.IC card rights management.System adopts contactless IC card, and in conjunction with AiOCC system, the teacher only need swipe the card on class can open dais and educational technology equipment automatically.(alternative)
Network multimedia central controller controls panel
Control panel is divided into perfect form, standard form and reduced form according to the user function demand.Wherein the function of perfect form is the most powerful, relatively is fit to more complete meeting room and the Conference Hall of equipment.Standard form and reduced form mainly are applicable to the common multimedia classroom.But also can customize exquisite push button panel (see figure 9) and general thin switching regulator panel according to the needs of school.
The main function of control panel is to control functions such as the switch of projector and other multimedia equipments, signal source switching.Simultaneously also as in the classroom end display interface of control running status.
The pilot lamp explanation:
(1) online: when keyboard was supplied the 5V power supply, this lamp was just bright.
(2) authority: when keyboard was locked by main control software, this lamp went out.Otherwise this lamp is just bright after the release.
(3) operation: behind the meaning key of taking up an official post by lower keyboard, instruction by in after the control main frame accepts and obtains feedback, this lamp glimmers, other the time this lamp all go out.
(4) system: after central control device power supply (DPS) was opened, this lamp was bright.Otherwise this lamp went out after device power supply (DPS) was closed.
(5) projector: this lamp is bright after projector is unlocked, otherwise this lamp went out after projector was closed.
(6) computing machine: this lamp is bright after computing machine is unlocked, otherwise this lamp went out after computing machine was closed.
(7) select signal source: have 6 pilot lamp here.After device power supply (DPS) is opened, have in these 6 lamps one bright, all the other all go out.After pressing any one button and correctly receiving feedback code, Dui Ying lamp is bright with it, and all the other all go out.(mutex relation)
(8) system closing prompting: central control system is in the delay switching-off process, and all pilot lamp flickers of panel are till system really closes.
The button explanation:
(1) system: the Push And Release of being responsible for device power supply (DPS).(a variable record current state must be arranged.)
(2) projector: be responsible for projector's switch.(a variable record current state must be arranged.)
(3) computing machine: be responsible for computer switch.(a variable record current state must be arranged.)
(4) electronic curtain: be responsible for curtain ascending, descending, stop.
(5) electrically driven curtain: the open and close of load curtain, stop.
(6) volume control: be responsible for the large and small, quiet of volume.
The main functional modules framework of network multimedia central controller is seen Fig. 7, Fig. 8:
Software function module:
(1) hardware communication
(2) device control
(3) control parameter setting in
(4) keyholed back plate reason in
(5) equipment usage log
(6) teacher ID card management
(7) management software is divided into the systematic parameter initialization module is set, and management information system module and control/maintenance/statistical system module three parts are formed.
Network multimedia central controller software comprises following main process:
Initialize process, some initial work that take charge of, and set up other process, finish these work after, finish this process, so this process has not existed after starting application process.
The TCP/IP service processes, the interruption data of responsible Treated Base, the generation incident is called service function.
The initialization real-time clock is fed dog, if restart, checks whether be that house dog is restarted.Upgrade connectLose house dog tcpIpDog
The TCP connection process is responsible for carrying out the initialization that TCP connects, and reconnects after connecting disconnection, hangs the TCP service function.
The keyboard service processes is responsible for accepting the serial port command sign indicating number, check, and initialization apparatus control section.Can initiatively not discharge CPU, be the lowest priority process.
Monitoring process, the company that is responsible for monitoring network is disconnected, the release of TCP resource, what reconnect is synchronous.
Network multimedia central controller software mainly moves the keyboard service processes, and the TCP connection process was checked a semaphore in per 2 seconds, and monitoring process operation in per 1 second once.
TcpipProc is event driven, if bottom has come data, just is the service function of tcp or udp.The process level synoptic diagram sees that Figure 10 sees, priority is seen Figure 11.
Network multimedia central controller software startup initialization flow process is seen Figure 12:
1) BootLoader finishes, and enters main ();
2) create initProcess, initialization operation system;
3) initialization gDevSt;
4) initialization gCustomPara;
5) Flash initialization;
6) serial ports initialization;
7) send the keyboard feedback code, inform that keyboard oneself just starts;
8) network parameter initialization, the storehouse initialization;
9) interrupt initialization (network and security protection):
10) create tcpip and handle service processes, creation-time treatment progress;
11) start application layer;
12) finish this process.
These work are to finish before starting the application layer process, enter application layer after, some initialization flow processs of carrying out.
Network multimedia central controller software timeProc process is seen Figure 13:
1) enters application layer;
2) timer initialization;
3) create the TCPIP chained process;
4) hang the UDP service function;
5) create the Keyboard Control process;
6) create monitoring process.
Network multimedia central controller software TCPIP connection process is seen Figure 14:
1) wait-semaphore discharges;
2) Sleep is two seconds;
3) set up a TCB (TCP control block);
4) as successfully returning step 1;
5) return step 1 after the unsuccessful release semaphore.
This process is a repetitive cycling that connects, and uses semaphore to carry out synchronously.If connection failure, directly release semaphore reconnects.If successful connection in the Callback of TCP function the inside, has the processing of release semaphore, under special situation, monitoring process also can be carried out the release of TCB and the release of semaphore simultaneously
Network multimedia central controller software keyboard control process is seen Figure 15:
1) initialization peripherals;
2) occlusion detection serial ports has data just to read in;
3) simple effect, step 1 is returned in the effect failure;
4) effect success, keyboard commands are resolved and are carried out, after return step 1.
The keyboard process is an obstruction process, not that is to say initiatively to discharge CPU that so be that priority level is minimum, that is to say, the Idle process can not have an opportunity to have moved.
Network multimedia central controller software supervision process process is seen Figure 16:
1) Sleep is 1 second;
2) the power switch lock detects, and carries out;
3) the house dog time is set to 10;
4) if connectLose〉10, return step 1, if connectLose＜=10;
5) discharge TCB, release semaphore, connectLose=20 returns step 1.
Claims (10)
1, a kind of network multimedia central control system, comprise campus network, supervisory control comuter, multi-media classroom, the network multimedia central controller, it is characterized in that: be connected with at least one management platform and several on the described campus network and be located at network multimedia central controller in the described multi-media classroom, described network multimedia central controller connects the multimedia teaching facility in the place multi-media classroom separately.
2, network multimedia central control system according to claim 1 is characterized in that: described management platform is equipped with management platform software for connecting the network computer of campus network in it, connects the network multimedia central controller.
3, network multimedia central control system according to claim 2, it is characterized in that: described management platform software comprises that management platform master routine, User Interface, database, backstage regularly inquire about thread, TCP/IP and window networking storehouse, and described management platform software is connected described campus network by TCP/IP with the window networking storehouse.
4, network multimedia central control system according to claim 3, it is characterized in that: described management platform master routine comprises equipment control controller module, parameter configuration device module, database manager module and log manager module, and the association attributes function C Room class, classroom single-track link table function C RoomList class, the slave computer port that are provided with equipment status parameter and middle control machine are monitored function C ListenSocket class, slave computer port communication function C ServerSocket class.
5, network multimedia central control system according to claim 1, it is characterized in that: described network multimedia central controller is by main control MCU module, frequency switch circuit, video switch circuit, the VGA converter, logical circuit, projector's control, the ID card reader, infrared emission/receiving circuit, programmable I/O output circuit, computer interface, long line drive circuit, keyboard interface, the direct current control module, alternating current control module and warning circuit are formed, described frequency switch circuit, video switch circuit is connected described main control MCU module with the VGA converter by logical circuit, described keyboard interface connects described main control MCU module by described long line drive circuit, the control of described projector, the ID card reader, infrared emission/receiving circuit, programmable I/O output circuit, computer interface, the direct current control module, the alternating current control module directly is connected described main control MCU module with warning circuit.
6, network multimedia central control system according to claim 5 is characterized in that: described network multimedia central controller is equipped with by hardware communication module, device control module, middle control parameter the embedded software that module, middle keyholed back plate reason module, equipment usage log module, teacher ID card management module and managing software module are formed is set.
7, network multimedia central control system according to claim 6 is characterized in that: described managing software module is provided with module, management information system module and control/maintenance/statistical system module three parts by the systematic parameter initialization and forms.
8, network multimedia central control system according to claim 7 is characterized in that: described systematic parameter initialization is provided with module and is included in line search connexon module, basic parameter submodule and control code read-write submodule are set.
9, network multimedia central control system according to claim 8 is characterized in that: described management information system module comprises keyholed back plate reason submodule, classroom computer management submodule, equipment control and statistics submodule in rights management submodule, the classroom, teacher ID card management submodule and curriculum schedule management submodule.
10, network multimedia central control system according to claim 9 is characterized in that: described control/maintenance/statistical system module comprises equipment usage log submodule, capacity utilization statistics submodule, equipment alarm detection sub-module, remote computer controlling sub, remote equipment operation submodule and task scheduling submodule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101826511A CN101436351B (en) | 2008-12-10 | 2008-12-10 | Network multimedia center control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101826511A CN101436351B (en) | 2008-12-10 | 2008-12-10 | Network multimedia center control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101436351A true CN101436351A (en) | 2009-05-20 |
| CN101436351B CN101436351B (en) | 2011-01-05 |
Family
ID=40710781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101826511A Active CN101436351B (en) | 2008-12-10 | 2008-12-10 | Network multimedia center control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101436351B (en) |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375440A (en) * | 2010-08-17 | 2012-03-14 | 湛辉来 | Network central control system-based air conditioning remote monitoring system |
| CN102387337A (en) * | 2010-09-01 | 2012-03-21 | 北京真视通科技股份有限公司 | Management system for conference devices |
| CN103475525A (en) * | 2013-09-13 | 2013-12-25 | 大连联达科技有限公司 | Management system of electrified education equipment |
| CN103514485A (en) * | 2013-09-23 | 2014-01-15 | 苏州经贸职业技术学院 | One-card multi-media classroom on-line ordering system based on local area network |
| CN104007723A (en) * | 2014-05-13 | 2014-08-27 | 南通航运职业技术学院 | Simple multimedia classroom control system based on intelligent campus environment |
| CN104062956A (en) * | 2014-06-16 | 2014-09-24 | 南京融教科技有限公司 | Real-time detecting and integrated monitoring and controlling system for equipment in multi-media classrooms |
| CN104157174A (en) * | 2014-09-03 | 2014-11-19 | 巫贤华 | Computer multimedia teaching system |
| CN104537496A (en) * | 2014-12-30 | 2015-04-22 | 广州视睿电子科技有限公司 | Intelligent terminal device use state statistics and analysis method and device |
| CN104867073A (en) * | 2015-05-08 | 2015-08-26 | 李隆庚 | LAN (local area network) multimedia classroom system based on management platform |
| CN105184712A (en) * | 2015-09-18 | 2015-12-23 | 成都虹昇光电科技有限公司 | Education equipment management system and method |
| CN105679132A (en) * | 2016-04-12 | 2016-06-15 | 重庆多创电子技术有限公司 | Multifunctional cloud blackboard |
| CN106023689A (en) * | 2016-07-11 | 2016-10-12 | 深圳市科佳达科技有限公司 | Teaching management system |
| CN106162018A (en) * | 2015-04-03 | 2016-11-23 | 云南师范大学 | A kind of projector expansion equipment |
| CN106658330A (en) * | 2016-12-30 | 2017-05-10 | 广州市保伦电子有限公司 | Audio detection switching module and system |
| CN106681201A (en) * | 2016-11-25 | 2017-05-17 | 合肥海亚信息科技有限公司 | Central control type multimedia classroom system based on campus network |
| CN106934744A (en) * | 2017-03-23 | 2017-07-07 | 合肥智慧殿投资管理有限公司 | Towards the Multimedia equipment control control system of multiple terminals application continuum |
| CN107221205A (en) * | 2016-11-25 | 2017-09-29 | 合肥海亚信息科技有限公司 | A kind of multi-media classroom total management system based on cloud computing |
| CN107390657A (en) * | 2017-07-29 | 2017-11-24 | 合肥科斯维数据科技有限公司 | Multimedia teaching classroom management system |
| CN109298691A (en) * | 2018-09-25 | 2019-02-01 | 锐达互动科技股份有限公司 | A kind of teaching equipment management method |
| CN109803011A (en) * | 2019-01-16 | 2019-05-24 | 北京艾斯创科技有限公司 | The local and central controlled multi-media control system of networking can be achieved in one kind |
| CN110007651A (en) * | 2019-03-18 | 2019-07-12 | 武汉三好教育科技股份有限公司 | Multimedia centralized controlling system |
| CN110033656A (en) * | 2019-04-16 | 2019-07-19 | 西南大学 | A kind of Art Design multimedia education system |
| CN111415538A (en) * | 2020-04-29 | 2020-07-14 | 常开旺 | Smart classroom system |
| CN112073204A (en) * | 2020-08-27 | 2020-12-11 | 腾讯科技（深圳）有限公司 | Group control method and device, electronic equipment and storage medium |
| CN112136306A (en) * | 2020-06-12 | 2020-12-25 | 深圳盈天下视觉科技有限公司 | Central control system of multimedia exhibition hall and control method and device thereof |
| CN113570914A (en) * | 2020-10-29 | 2021-10-29 | 广州蓝鸽软件有限公司 | Man-machine natural interaction teaching method and system |
| CN113821003A (en) * | 2021-07-30 | 2021-12-21 | 杭州德昌视讯科技有限公司 | Teaching equipment management system and control method |
| WO2024011683A1 (en) * | 2022-07-13 | 2024-01-18 | 浙大城市学院 | Remote intelligent centralized control system device based on internet of things |
-
2008
- 2008-12-10 CN CN2008101826511A patent/CN101436351B/en active Active
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375440A (en) * | 2010-08-17 | 2012-03-14 | 湛辉来 | Network central control system-based air conditioning remote monitoring system |
| CN102387337A (en) * | 2010-09-01 | 2012-03-21 | 北京真视通科技股份有限公司 | Management system for conference devices |
| CN103475525A (en) * | 2013-09-13 | 2013-12-25 | 大连联达科技有限公司 | Management system of electrified education equipment |
| CN103514485A (en) * | 2013-09-23 | 2014-01-15 | 苏州经贸职业技术学院 | One-card multi-media classroom on-line ordering system based on local area network |
| CN103514485B (en) * | 2013-09-23 | 2016-04-27 | 苏州经贸职业技术学院 | The online reservation system of multi-media classroom based on the all-purpose card of LAN (Local Area Network) |
| CN104007723A (en) * | 2014-05-13 | 2014-08-27 | 南通航运职业技术学院 | Simple multimedia classroom control system based on intelligent campus environment |
| CN104062956A (en) * | 2014-06-16 | 2014-09-24 | 南京融教科技有限公司 | Real-time detecting and integrated monitoring and controlling system for equipment in multi-media classrooms |
| CN104157174A (en) * | 2014-09-03 | 2014-11-19 | 巫贤华 | Computer multimedia teaching system |
| CN104537496A (en) * | 2014-12-30 | 2015-04-22 | 广州视睿电子科技有限公司 | Intelligent terminal device use state statistics and analysis method and device |
| CN104537496B (en) * | 2014-12-30 | 2018-09-21 | 广州视睿电子科技有限公司 | Intelligent terminal behaviour in service statistical analysis technique and device |
| CN106162018A (en) * | 2015-04-03 | 2016-11-23 | 云南师范大学 | A kind of projector expansion equipment |
| CN104867073A (en) * | 2015-05-08 | 2015-08-26 | 李隆庚 | LAN (local area network) multimedia classroom system based on management platform |
| CN105184712A (en) * | 2015-09-18 | 2015-12-23 | 成都虹昇光电科技有限公司 | Education equipment management system and method |
| CN105679132A (en) * | 2016-04-12 | 2016-06-15 | 重庆多创电子技术有限公司 | Multifunctional cloud blackboard |
| CN106023689A (en) * | 2016-07-11 | 2016-10-12 | 深圳市科佳达科技有限公司 | Teaching management system |
| CN106681201A (en) * | 2016-11-25 | 2017-05-17 | 合肥海亚信息科技有限公司 | Central control type multimedia classroom system based on campus network |
| CN107221205A (en) * | 2016-11-25 | 2017-09-29 | 合肥海亚信息科技有限公司 | A kind of multi-media classroom total management system based on cloud computing |
| CN106658330A (en) * | 2016-12-30 | 2017-05-10 | 广州市保伦电子有限公司 | Audio detection switching module and system |
| CN106934744A (en) * | 2017-03-23 | 2017-07-07 | 合肥智慧殿投资管理有限公司 | Towards the Multimedia equipment control control system of multiple terminals application continuum |
| CN107390657A (en) * | 2017-07-29 | 2017-11-24 | 合肥科斯维数据科技有限公司 | Multimedia teaching classroom management system |
| CN109298691A (en) * | 2018-09-25 | 2019-02-01 | 锐达互动科技股份有限公司 | A kind of teaching equipment management method |
| CN109803011A (en) * | 2019-01-16 | 2019-05-24 | 北京艾斯创科技有限公司 | The local and central controlled multi-media control system of networking can be achieved in one kind |
| CN110007651A (en) * | 2019-03-18 | 2019-07-12 | 武汉三好教育科技股份有限公司 | Multimedia centralized controlling system |
| CN110033656A (en) * | 2019-04-16 | 2019-07-19 | 西南大学 | A kind of Art Design multimedia education system |
| CN111415538A (en) * | 2020-04-29 | 2020-07-14 | 常开旺 | Smart classroom system |
| CN112136306B (en) * | 2020-06-12 | 2021-11-09 | 深圳盈天下视觉科技有限公司 | Central control system of multimedia exhibition hall and control method and device thereof |
| CN112136306A (en) * | 2020-06-12 | 2020-12-25 | 深圳盈天下视觉科技有限公司 | Central control system of multimedia exhibition hall and control method and device thereof |
| WO2021248477A1 (en) * | 2020-06-12 | 2021-12-16 | 深圳盈天下视觉科技有限公司 | Central control system for multimedia exhibition hall, and control method and apparatus for same |
| CN112073204A (en) * | 2020-08-27 | 2020-12-11 | 腾讯科技（深圳）有限公司 | Group control method and device, electronic equipment and storage medium |
| CN113570914A (en) * | 2020-10-29 | 2021-10-29 | 广州蓝鸽软件有限公司 | Man-machine natural interaction teaching method and system |
| CN113821003A (en) * | 2021-07-30 | 2021-12-21 | 杭州德昌视讯科技有限公司 | Teaching equipment management system and control method |
| WO2024011683A1 (en) * | 2022-07-13 | 2024-01-18 | 浙大城市学院 | Remote intelligent centralized control system device based on internet of things |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101436351B (en) | 2011-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101436351B (en) | Network multimedia center control system | |
| CN106534343B (en) | Museum's cloud control system | |
| CN112037091A (en) | Smart classroom visual management software platform | |
| CN203084971U (en) | Intelligent classroom system | |
| CN110060186A (en) | Integrate the smart electronics class board system and method for teaching interaction and monitoring | |
| CN106337622A (en) | Automatic door system based on Internet of Things | |
| CN109802876A (en) | A kind of micro- smart home system | |
| CN103699096A (en) | Exhibition hall equipment and multimedia centralized control system | |
| CN112787869A (en) | Extensible building Internet of things system modularization integration method | |
| CN202583855U (en) | Intelligent management system for hotel rooms | |
| Kiran et al. | Voice Controlled Home Automation System using Google Assistants | |
| CN202142206U (en) | Wall-mounted multimedia teaching all-in-one machine | |
| CN104007723A (en) | Simple multimedia classroom control system based on intelligent campus environment | |
| CN103389657B (en) | Dual-backup programmable central control system | |
| CN210924226U (en) | Artificial intelligence wisdom classroom | |
| CN104481331A (en) | Remote door opening/closing control system | |
| KR20190047500A (en) | Portable terminal managing working time by controlling lamp and smatrt desk connected the portable terminal and management apparatus of working time | |
| CN204436132U (en) | Remote switch accelerator control system | |
| CN201255921Y (en) | Intelligent multimedia central controller | |
| CN202205084U (en) | Conference type multimedia central controller | |
| CN213149546U (en) | Multi-functional wisdom classroom based on high in clouds | |
| CN201732286U (en) | Hotel room control and information management system | |
| CN214480996U (en) | Conference room reservation system and device adaptive according to environmental information | |
| Zhang et al. | IoT Based Intelligent Energy Monitoring System for Computer Laboratories | |
| CN210955258U (en) | Intelligent management system for open laboratory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |