CN102662359A - Novel intelligent examination hall management system - Google Patents
Novel intelligent examination hall management system Download PDFInfo
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- CN102662359A CN102662359A CN201210105834XA CN201210105834A CN102662359A CN 102662359 A CN102662359 A CN 102662359A CN 201210105834X A CN201210105834X A CN 201210105834XA CN 201210105834 A CN201210105834 A CN 201210105834A CN 102662359 A CN102662359 A CN 102662359A
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Abstract
The invention discloses a novel intelligent examination hall management system belonging to a wireless sensor network and the technical field of automation. The structure is as follows: a time managing and issuing device is respectively connected with a first examination hall receiving terminal to an nth examination hall receiving terminal through a ZigBee/IEEE802.15.4 channel. The novel intelligent examination hall management system disclosed by the invention has the beneficial effects of: 1) ensuring the fairness of an examination, reducing the possibility of misoperation of a test supervisor, 2) having reliable and stable wireless connection and strong anti-interference performance, 3) greatly reducing the handling capacity of the test supervisor so as to obviously reduce the possibility of misoperation, and improving the fairness of a listening test and various large examinations, and 4) being simple in implementation and low in cost.
Description
Technical field
The invention belongs to wireless sensor network and technical field of automation, particularly a kind of novel intelligent examination hall management system.
Background technology
At present; The large-scale examination of country; Because neither one unified time benchmark, wrist-watch that each examination hall supervisor can only carry according to oneself or examination the tinkle of bells estimate beginning and the end of test time, this temporal disunity; Often cause each examination hall paper transmitting-receiving time inconsistent, thereby influenced the fairness of examination to a certain extent.Even some examination points will send the special messenger to notify each examination hall supervisor to carry out operations through the mode of blowing a whistle; This mode has not only been wasted manpower; And, making the supervisor more be easy to generate maloperation because signal is single, maloperation is in case take place; Will have a strong impact on examinee's mood, infringement examinee rights and interests.In addition, in order to prevent to take an examination, the examinee utilizes wireless device cheatings such as mobile phone, and each examination hall can be arranged a mobile phone shielding appearance usually, shields a plurality of wireless channels.The shielding appearance adopts the 220VAC power supply; Some examination (such as four or six grades of College English) requires to close the shielding appearance in the hearing stage; Increased the complexity of supervisor's operation so again; The shielding appearance may in time not closed owing to supervisor's carelessness in some examination hall, and this examination hall hearing signal quality is descended, thereby has influenced the fairness of examination.
To above situation, examination point needs the general intelligent examination hall management system of a cover, synchronously the time in each examination hall in the examination point, optimizes the examination environment, guarantees the fairness of examination.
Summary of the invention
The present invention is directed to above-mentioned defective and disclose a kind of novel intelligent examination hall management system.The objective of the invention is to solve disunity problem of described examination hall time of background technology, and increased the examination hall voice suggestion on this basis, functions such as the automatic open and close of examination hall shielding appearance.
The structure of a kind of novel intelligent examination hall management system is following: time management is connected receiving terminal to the n examination hall, the 1st examination hall receiving terminal with the equipment of issuing respectively through the ZigBee/IEEE802.15.4 channel; N >=1;
Time management is following with the structure of the equipment of issuing: computing machine is connected USB/UART chip (USB end); First single-chip microcomputer connects USB/UART chip (UART end), a CC2530 chip, first DLL, first feed circuit, first reset circuit and first crystal oscillator respectively, and a CC2530 chip connects second crystal oscillator, second feed circuit, first radio circuit, second reset circuit and second DLL respectively; First single-chip microcomputer, USB/UART chip, first DLL, first feed circuit, first reset circuit and first crystal oscillator constitute first one-chip computer module; The one CC2530 chip, second crystal oscillator, second feed circuit, first radio circuit, second reset circuit and second DLL constitute coordinator module;
The structure of receiving terminal to the n examination hall, the 1st examination hall receiving terminal with same structure is following: the 2nd CC2530 chip connects the 3rd crystal oscillator, the 3rd feed circuit, second radio circuit, the 3rd reset circuit and the 3rd DLL respectively; Second singlechip connects the 2nd CC2530 chip, the 4th DLL, relay drive circuit, the 4th feed circuit, UART/RS485 change-over circuit, the 4th crystal oscillator, loudspeaker driving circuit and the 4th reset circuit respectively; The 2nd CC2530 chip, the 3rd crystal oscillator, the 3rd feed circuit, second radio circuit, the 3rd reset circuit and the 3rd DLL constitute router-module, and second singlechip, the 4th DLL, relay drive circuit, the 4th feed circuit, UART/RS485 change-over circuit, the 4th crystal oscillator, loudspeaker driving circuit and the 4th reset circuit constitute the second singlechip module;
LED display connects the UART/RS485 change-over circuit through the RS485 bus, and loudspeaker connects loudspeaker driving circuit.
Said relay drive circuit connects relay; One end of relay has the 220VAC plug; The socket of this 220VAC plug and 220VAC power supply is assembled together, thereby relay is connected with the 220VAC power supply, and the other end of relay has the 220VAC jack; This 220VAC jack is assembled together with the plug of shielding appearance, thereby relay connects the shielding appearance; Relay constitutes shielding appearance control module with the shielding appearance.
Said computing machine is equipped with Windows operating system and examination management software, and it connects USB/UART chip (USB end) through USB interface.
Said USB/UART chip (UART end) is connected to the UART0 of first single-chip microcomputer.
Said first DLL and the 4th DLL are jtag interface;
The frequency of said first crystal oscillator and the 4th crystal oscillator is 8MHz;
The frequency of said second crystal oscillator and the 3rd crystal oscillator is 32MHz;
The model of said first single-chip microcomputer and second singlechip is MSP430F149.
Said time management is arranged on examination point administrative center with the equipment of issuing, and receiving terminal to the n examination hall, 1 examination hall receiving terminal is installed in n examination hall, the 1st examination hall to the respectively.
Said LED display comprises chip for driving and LED dot matrix screen.
Beneficial effect of the present invention is:
1) through a time management being set and issuing equipment, unification issues test time information and information of voice prompt, makes each examination hall time unification, has guaranteed the fairness of examination, reduces the possibility of invigilator personnel maloperation.
2) adopt wireless mode to be connected between time management and the equipment of issuing and each examination hall receiving terminal, reduce the construction process of wiring, reduce construction cost.Wireless channel is based on ZigBeePro agreement and IEEE802.15.4 standard, wireless connections reliable and stable, strong interference immunity.
3) through designing a shielding appearance control module shielding appearance is worked automatically, significantly reduce invigilator personnel's operational ton, thereby significantly reduce the possibility of maloperation, the fairness of can improve one's hearing examination and even various large-scale examinations.
4) the present invention realizes simply, and is with low cost, only need on the examination point management centre computer, just can be applied in the large-scale examination examination point of all types by the simple modification software program, very is convenient to large-scale promotion application, and remarkable economic efficiency and social benefit are arranged.
Description of drawings
Fig. 1 is an overall construction drawing of the present invention;
Fig. 2 is for time management and issue the equipment pie graph;
Fig. 3 is an examination hall receiving terminal pie graph.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explain:
As shown in Figure 1, the structure of a kind of novel intelligent examination hall management system is following: time management is connected receiving terminal to the n examination hall, the 1st examination hall receiving terminal with the equipment of issuing respectively through ZigBee/IEEE802.15.4 channel 1; N >=1;
As shown in Figure 2; Time management is following with the structure of the equipment of issuing: computing machine is connected the USB/UART chip; First single-chip microcomputer connects USB/UART chip, a CC2530 chip, first DLL, first feed circuit, first reset circuit and first crystal oscillator respectively, and a CC2530 chip connects second crystal oscillator, second feed circuit, first radio circuit, second reset circuit and second DLL respectively; First single-chip microcomputer, USB/UART chip, first DLL, first feed circuit, first reset circuit and first crystal oscillator constitute first one-chip computer module; The one CC2530 chip, second crystal oscillator, second feed circuit, first radio circuit, second reset circuit and second DLL constitute coordinator module;
As shown in Figure 3, the structure of receiving terminal to the n examination hall, the 1st examination hall receiving terminal with same structure is following: the 2nd CC2530 chip connects the 3rd crystal oscillator, the 3rd feed circuit, second radio circuit, the 3rd reset circuit and the 3rd DLL respectively; Second singlechip connects the 2nd CC2530 chip, the 4th DLL, relay drive circuit, the 4th feed circuit, UART/RS485 change-over circuit, the 4th crystal oscillator, loudspeaker driving circuit and the 4th reset circuit respectively; The 2nd CC2530 chip, the 3rd crystal oscillator, the 3rd feed circuit, second radio circuit, the 3rd reset circuit and the 3rd DLL constitute router-module, and second singlechip, the 4th DLL, relay drive circuit, the 4th feed circuit, UART/RS485 change-over circuit, the 4th crystal oscillator, loudspeaker driving circuit and the 4th reset circuit constitute the second singlechip module;
LED display connects the UART/RS485 change-over circuit through RS485 bus 2, and loudspeaker connects loudspeaker driving circuit.
Relay drive circuit connects relay coil; One end of relay has the 220VAC plug; The socket of this 220VAC plug and 220VAC power supply is assembled together, thereby relay is connected with the 220VAC power supply, and the other end of relay has the 220VAC jack; This 220VAC jack is assembled together with the plug of shielding appearance, thereby relay connects the shielding appearance; Relay constitutes shielding appearance control module with the shielding appearance.
Computing machine is equipped with Windows operating system and examination management software, and it connects the USB/UART chip through USB interface.
The USB/UART chip connects first single-chip microcomputer.
First DLL and the 4th DLL are jtag interface;
The frequency of first crystal oscillator and the 4th crystal oscillator is 8MHz;
The frequency of second crystal oscillator and the 3rd crystal oscillator is 32MHz;
The model of first single-chip microcomputer and second singlechip is MSP430F149.
Time management is arranged on examination point administrative center with the equipment of issuing, and receiving terminal to the n examination hall, 1 examination hall receiving terminal is installed in n examination hall, the 1st examination hall to the respectively.
LED display is used for the demonstration time, and LED display comprises chip for driving and LED dot matrix screen.
The course of work of the present invention is following:
Time management issues information such as time, voice to each examination hall receiving terminal with the equipment of issuing, and each examination hall receiving terminal is handled actions such as the back execution displays the play.
Operation has the examination management software that adopts Visual Studio2010 exploitation on the computing machine, this examination management software have set stage by stage the test time (such as the hai roll time, the hearing examination start time; The hearing examination concluding time; Receive 1 time of answer sheet, receive 2 times of answer sheet, the examination concluding time etc.); Set information of voice prompt by the time, set functions such as shielding appearance open and close by the time.Examination management software can be accepted staff's set information, and sends the USB/UART chip through USB interface.The conversion of signals that the USB/UART chip is sent the computing machine USB interface becomes the TTL signal and is sent to the UART0 of first single-chip microcomputer.
The instructions that the first single-chip microcomputer receiving computer is assigned after treatment, sends to a CC2530 chip through UART1; First DLL is the interface that first single-chip microcomputer provides a programming and debugging; It is the power supply of first single-chip microcomputer that first feed circuit convert outside 5V power supply (coming to USB) to 3.3V.First crystal oscillator is the clock signal that first single-chip microcomputer provides 8MHz; First reset circuit is the function that first single-chip microcomputer provides the electrification reset operation on the one hand, and for the user provides the function to first single-chip microcomputer hand-reset operation, the user can make system recovery normal through resetting when system exception on the other hand.
The one CC2530 chip is supported the ZigBeePRO agreement, through it is set to the ZigBee telegon to the exploitation of protocol stack.Second crystal oscillator is the clock signal that a CC2530 chip provides 32MHz; It is a CC2530 chip power supply that second feed circuit convert 5V power supply (coming to USB) into 3.3V; First radio circuit is responsible for the 2.4GHz signal that CC2530 chip modulation is accomplished is outwards launched.Second reset circuit is the function that a CC2530 chip provides the electrification reset operation on the one hand, and for the user provides the function to CC2530 chip hand-reset operation, the user can make system recovery normal through resetting when system exception on the other hand; Second DLL is the interface that the 2nd CC2530 chip provides a programming and debugging.
Coordinator module is responsible for the foundation of whole wireless network, and broadcasts the time that is received by the UART interface, information such as voice.To all kinds of examinations, the staff opens examination management software, on software interface, sets; Comprise the examination start time; The hearing start time, receive the answer sheet time, the rolling time etc.; And in each time point setting relevant voice information, information of voice prompt can be the voice document that records in advance.
Coordinator module has power amplification circuit, and the power of wireless transmission signal is adjusted to about 46dbm, gives each examination hall receiving terminal through the mode of broadcasting with data distributing.
Each examination hall receiving terminal is made up of router-module and second singlechip module; Test time and voice messaging that management of the 2nd CC2530 chip time of reception and the equipment of issuing issue; Send into the UART0 of second singlechip, thereby second singlechip is handled to these data.After second singlechip is handled data, corresponding temporal information is sent to LED display show, relevant voice information is sent to loudspeaker to produce suggestion voice, will shield the appearance switching information and send to relay, thus the unlatching of control shielding appearance and stopping.
The 2nd CC2530 chip is supported the ZigBeePRO protocol stack, and through protocol stack being provided with and corresponding exploitation, it is set to the ZigBee router.
Router-module can add the ZigBee network that coordinator module is set up, and has routing function, can increase the coverage of network.Router-module is connected with the second singlechip module through the UART interface; The 3rd crystal oscillator is the clock signal that the 2nd CC2530 chip provides 32MHz; It is the 2nd CC2530 chip power supply that the 3rd feed circuit convert the common AC power of 220V into 3.3V; The 2.4GHz signal that second radio circuit is accomplished the modulation of the 2nd CC2530 chip outwards sends; The 3rd reset circuit is the function that the 2nd CC2530 chip provides the electrification reset operation on the one hand, and for the user provides the function to the 2nd CC2530 chip hand-reset operation, the user can make system recovery normal through resetting when system exception on the other hand; The 3rd DLL is the interface that the 2nd CC2530 chip provides a programming and debugging.
The second singlechip module is made up of a MSP430F149 single-chip microcomputer and correspondent peripheral circuit; Time that router-module will be accepted and voice messaging send to second singlechip through UART and handle, and the corresponding data after second singlechip is handled data send to LED display and loudspeaker.The 4th DLL is the interface that second singlechip provides a programming and debugging; The switching signal that relay drive circuit produces according to second singlechip drives relay work; It is the second singlechip power supply that the 4th feed circuit convert the common AC power of 220V into 3.3V; The UART/RS485 change-over circuit changes into the RS485 signal with the UART signal of single-chip microcomputer, offers LED display; The 4th crystal oscillator is the clock signal that second singlechip provides 8MHz; The power amplification of the simulating signal that loudspeaker driving circuit sends second singlechip D/A converter drives speaker operation; The 4th reset circuit provides the function of electrification reset operation on the one hand for second singlechip, for the user provides the function to second singlechip hand-reset operation, the user can make system recovery normal through resetting when system exception on the other hand.
LED display is used for the demonstration time, and loudspeaker sends some information of voice prompt (according to the requirement of administrative center) and supplies invigilator personnel reference; Loudspeaker signal is produced by the D/A converter of second singlechip, and offers loudspeaker through loudspeaker driving circuit after with power amplification.
Second singlechip is in the state of turning on and off through the power supply of relay control shielding appearance, thereby makes its work or stop.The shielding appearance can or stop by official hour work.
Claims (7)
1. novel intelligent examination hall management system, it is characterized in that its structure is following: time management is connected receiving terminal to the n examination hall, the 1st examination hall receiving terminal with the equipment of issuing respectively through ZigBee/IEEE802.15.4 channel (1); N >=1;
Time management is following with the structure of the equipment of issuing: computing machine is connected the USB/UART chip; First single-chip microcomputer connects USB/UART chip, a CC2530 chip, first DLL, first feed circuit, first reset circuit and first crystal oscillator respectively, and a CC2530 chip connects second crystal oscillator, second feed circuit, first radio circuit, second reset circuit and second DLL respectively; First single-chip microcomputer, USB/UART chip, first DLL, first feed circuit, first reset circuit and first crystal oscillator constitute first one-chip computer module; The one CC2530 chip, second crystal oscillator, second feed circuit, first radio circuit, second reset circuit and second DLL constitute coordinator module;
The structure of receiving terminal to the n examination hall, the 1st examination hall receiving terminal with same structure is following: the 2nd CC2530 chip connects the 3rd crystal oscillator, the 3rd feed circuit, second radio circuit, the 3rd reset circuit and the 3rd DLL respectively; Second singlechip connects the 2nd CC2530 chip, the 4th DLL, relay drive circuit, the 4th feed circuit, UART/RS485 change-over circuit, the 4th crystal oscillator, loudspeaker driving circuit and the 4th reset circuit respectively; The 2nd CC2530 chip, the 3rd crystal oscillator, the 3rd feed circuit, second radio circuit, the 3rd reset circuit and the 3rd DLL constitute router-module, and second singlechip, the 4th DLL, relay drive circuit, the 4th feed circuit, UART/RS485 change-over circuit, the 4th crystal oscillator, loudspeaker driving circuit and the 4th reset circuit constitute the second singlechip module;
LED display connects the UART/RS485 change-over circuit through RS485 bus (2), and loudspeaker connects loudspeaker driving circuit.
2. a kind of novel intelligent according to claim 1 examination hall management system is characterized in that, said relay drive circuit connects relay; One end of relay has the 220VAC plug; The socket of this 220VAC plug and 220VAC power supply is assembled together, thereby relay is connected with the 220VAC power supply, and the other end of relay has the 220VAC jack; This 220VAC jack is assembled together with the plug of shielding appearance, thereby relay connects the shielding appearance; Relay constitutes shielding appearance control module with the shielding appearance.
3. a kind of novel intelligent according to claim 1 examination hall management system is characterized in that said computing machine is equipped with Windows operating system and examination management software, and it connects the USB/UART chip through USB interface.
4. a kind of novel intelligent according to claim 1 examination hall management system is characterized in that said USB/UART chip is connected to the UART0 of first single-chip microcomputer.
5. a kind of novel intelligent according to claim 1 examination hall management system is characterized in that said first DLL and the 4th DLL are jtag interface;
The frequency of said first crystal oscillator and the 4th crystal oscillator is 8MHz;
The frequency of said second crystal oscillator and the 3rd crystal oscillator is 32MHz;
The model of said first single-chip microcomputer and second singlechip is MSP430F149.
6. a kind of novel intelligent according to claim 1 examination hall management system is characterized in that, said time management is arranged on examination point administrative center with the equipment of issuing, and receiving terminal to the n examination hall, 1 examination hall receiving terminal is installed in n examination hall, the 1st examination hall to the respectively.
7. a kind of novel intelligent according to claim 1 examination hall management system is characterized in that, said LED display comprises chip for driving and LED dot matrix screen.
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| CN201210105834.XA CN102662359B (en) | 2012-04-11 | 2012-04-11 | Novel intelligent examination hall management system |
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| CN201210105834.XA CN102662359B (en) | 2012-04-11 | 2012-04-11 | Novel intelligent examination hall management system |
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| CN104570842A (en) * | 2014-12-05 | 2015-04-29 | 深圳市海云天科技股份有限公司 | Examination room instruction terminal and voice instruction playing method thereof |
| CN105425576A (en) * | 2015-12-01 | 2016-03-23 | 张铭源 | Electronic clock synchronization system at examination place and synchronization method thereof |
| CN105991208A (en) * | 2015-03-02 | 2016-10-05 | 马立明 | Wireless communication signal interference and shielding system for classrooms |
| CN106066778A (en) * | 2016-06-30 | 2016-11-02 | 金中朝 | A kind of laboratory table numbering is arranged and display system |
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| CN106066778A (en) * | 2016-06-30 | 2016-11-02 | 金中朝 | A kind of laboratory table numbering is arranged and display system |
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| CN102662359B (en) | 2014-01-15 |
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