CN2681238Y

CN2681238Y - Wireless evaluation system

Info

Publication number: CN2681238Y
Application number: CN 200320114726
Authority: CN
Inventors: 彭东林; 刘小康; 张兴红
Original assignee: Chongqing Institute of Technology
Current assignee: Chongqing Institute of Technology
Priority date: 2003-10-01
Filing date: 2003-10-01
Publication date: 2005-02-23
Anticipated expiration: 2013-10-01

Abstract

The utility model discloses a wireless evaluation system, which is characterized in that a central data processing station is communicated wirelessly with intelligent scoring machines through a wireless data communication interface card. A roll-call roll-polling wireless network topology structure is adopted between the central data processing station and N intelligent scoring machines. The central data processing station is respectively connected with a printer, a projector and the wireless data communication interface card by a computer. The wireless data communication interface card is formed by the core compising a microcontroller AT89C51 and a wireless transceiver circuit nRF401. The core of the intelligent scoring machine is a microcontroller AT89C52 and another wireless transceiver circuit nRF401. The wireless transceiver circuit nRF401 is connected with the microcontroller AT89c52 by serial interface mode, and communicated with the wireless date communication interface card. The wireless evaluation system has the advantage that the scoring machines and a central data processor can realize date transmission through wireless wave, being a general-purpose system with high expandability. The wireless evaluation system can be used on occasions which need accurate and quick evaluation.

Description

The wireless type estimating and examining system

Technical field:

The utility model wireless type estimating and examining system belongs to the technical field that network technology, computer technology and wireless communication technology combine.Be specifically related to a kind of wireless type estimating and examining system.

Technical background:

In actual life, there are various evaluations, activities to decide on awards in a large number.In these activities, what adopt at present all is complicate statistics or wired formula estimating and examining system, causes on-site cable to twine unavoidably, and scorer moves inconvenient and chaotic on the site space layout such as inconvenience.In addition, the intellectuality even the scorer in computer system, the judging panel's hand that adopted central data processing system still is unrealized, can only be by several function keys (as to agree with, waive the right and oppose), this is unfavorable for that the judging panel obtains relevant information and expresses its intention fully swimmingly.Therefore, the research and development of the rational expert evaluation system of a kind of advanced person seems particularly urgent, and it will make a large amount of manpower and materials free from diverse and confused numerous and diverse transactional hard working.

Summary of the invention:

The purpose of this utility model is to provide a kind of wireless type estimating and examining system, scorer and central data handle can between realize data transmission by radiowave, intelligent scoring device function is strong, operation interface is friendly, conveniently moving, and flexible good, can be used for evaluating occasion accurately and fast

The technical solution of the utility model is as follows:

Native system mainly comprises central data treating stations and N intelligent scoring device, is wireless connections between them, adopts wheel to be the wireless network topology structure of poll between central data treating stations and N the intelligent scoring device.

Central data reason station connects printer, projector and wireless type data communication interface card respectively by computing machine.The wireless type data communication interface card is that core is formed by microcontroller AT89C51 and nRF401 wireless transceiver circuit, and microprocessor AT89C51 the 25th pin P2.4 selects the frequency of operation of wireless telecommunications by connecting the CS pin of nRF401 wireless transceiver circuit.

The core of intelligent scoring device is microcontroller AT89C52 and another nRF401 wireless transceiver circuit, and the nRF401 wireless transceiver circuit is by serial interface mode and microcontroller AT89C52 interface, with the communication of wireless type data communication interface card.

In evaluation course, every the expert that participates in evaluation and electing operates the intelligent scoring device of a counter size, by the index scoring.The central data treating stations carries out radio communication by wireless type data communication interface card and intelligent scoring device, collects all experts' scoring automatically, and data are carried out various processing.Data transmission between main realization on the one hand of wireless type data communication interface card and the computing machine is on the other hand by the data transmission between wireless telecommunications realization and a plurality of intelligent scoring device.Large screen projector is used to issue on-the-spot relevant information, and review result and various statistical report form can also the database form be stored on computers by printer output.

The advantage of this wireless type estimating and examining system is can realize data transmission by radiowave between scorer and central data processor (CDP), this system is a general-purpose system that extendability is very strong, can be used for to evaluate occasion accurately and fast, satisfy the evaluation, voting, assessment and other the various past that produce with science and technology and socio-economic development mainly by the needs of the activity manually finished.

Description of drawings:

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

Fig. 2 is the hardware structure diagram of wireless type data communication interface card of the present utility model;

Fig. 3 is the hardware structure diagram of intelligent scoring device of the present utility model;

Fig. 4 is the circuit theory diagrams of wireless type data communication interface card of the present utility model;

Fig. 5 is the circuit theory diagrams of intelligent scoring device of the present utility model;

Fig. 6 is system works flow process figure of the present utility model.

Embodiment

Referring to Fig. 1, native system mainly comprises central data processor (CDP) and a plurality of

intelligent scoring device

1,2......N.Central data reason machine includes computing machine, printer, projector and wireless type data communication interface card.

In conjunction with Fig. 2 and Fig. 4, the wireless type data communication interface card of central data reason machine is that core is formed by microprocessor AT89C51 and nRF401 wireless transceiver circuit, also comprises serial port circuit, level shifting circuit MAX232, USB100 module, X5043 watch dog monitoring circuit and LED signal lamp.The P2.6 of microcontroller AT89C51, P2.7 pin link to each other with 19 pin with the control end the 1st of 74LS244 serial port circuit respectively.Input end the 2nd pin of 74LS244 serial port circuit links to each other with the 9th pin R2OUT of MAX232 level shifting circuit, and the 6th pin links to each other with the TxD pin of microprocessor AT89C51 with 15 pin, and the 11st pin meets the data output end DO of nRF401 wireless transceiver circuit.Output terminal the 5th pin of string 74LS244 mouth multiplex circuit links to each other with the 10th pin T2IN of MAX232 level shifting circuit, and the RxD pin of the 9th pin and 18 pin and microprocessor AT89C51 is connected together, and the 14th pin meets the data input pin DI of nRF401 wireless transceiver circuit; The P2.0 of microprocessor AT89C51, P2.1, P2.2 and P2.3 link to each other with CS, SI, SOUT and the SO of X5043 watch dog monitoring circuit respectively, and the RST pin of X5043 watch dog monitoring circuit is by the 9th pin preset end signal of triode 3904 control microprocessor AT89C51.The P1.0 of microprocessor AT89C51～P1.7 pin is connected with the D0～D7 of Universal USB 100 serial bus modules successively, and P3.4, P3.5, P3.6 and P3.7 pin link to each other with TXE, RXF, WR and the RD of USB100 respectively.

The function of wireless type data communication interface card be to realize on the one hand and computing machine between data transmission, to carry out communication with a plurality of intelligent scoring devices wirelessly on the other hand.Interface card is by the conversion of MAX232 realization RS-232 level and Transistor-Transistor Logic level, and AT89C51 and nRF401 adopt serial interface mode, therefore, has adopted the time-sharing multiplex function of a 74LS244 realization AT89C51 serial port.USB interface adopts universal serial bus module USB100, and this interface hardware connects simple, and programming easily.Adopt the X5043 docking port to stick into the row monitoring.

Referring to Fig. 3 and Fig. 5, the intelligent scoring device be microcontroller AT89C52 and nRF401 wireless transceiver circuit, the RxD end of microprocessor AT89C52 links to each other with the output terminal DO of nRF401 wireless transceiver circuit, TxD links to each other with output terminal DI, and P3.2, P3.3 link to each other with the CS pin with PWR_UP, the TXEN of nRF401 respectively with P3.4.P2.0～P2.7 of microprocessor AT89C52 is connected with 8 lead-in wires of 4*4 keyboard respectively; P0.0～P0.7 links to each other with 8 data lines D0～D7 of LCD LCD MODULE MGLS19264, and P1.4, P1.5 link to each other with viewing area control end CSA, the CSB of LCD, and P1.6 meets D/I, and P1.7 meets R/W, and P3.5 connects and makes LCD Enable Pin E; The P1.0 of microprocessor AT89C52, P1.1, P1.2 and P1.3 link to each other with CS, SI, SOUT and the SO of X5043 watch dog monitoring circuit respectively, and the RST pin of X5043 watch dog monitoring circuit is by the 9th pin preset end signal of triode 3904 control microprocessor AT89C52.

The X5043 of intelligent scoring device guarantees that scorer all the time can operate as normal, keyboard is used for the expert and imports scoring, the LCD liquid crystal display terminal shows current evaluation index, expert's appraisal result and operation prompt information etc., signal lamp is indicated the duty of current scorer, and key prompting voice can close or open by software.Adopting the intelligent scoring device of this structural design to help the judging panel fully obtains relevant information and expresses intention swimmingly.And the LCD operation prompt information is arranged, very easy to use.Owing to adopted microcontroller AT89C52, the intelligent scoring utensil has bigger flexibility, and extendability is strong, can adjust and expand its function, various different requirements at all levels to satisfy, that every field varies easily at any time according to customer requirements.And the central data treating stations can be provided with by the function of software to the intelligent scoring device wirelessly.

Referring to Fig. 6, the workflow of wireless type estimating and examining system is as follows:

Before the expert carried out on-site review, the staff was entered into system database by function software automatically with the declaration material (Word document) of waiting the project of evaluating.Software treats that to all the evaluation project classifies automatically then, and matches corresponding evaluation expert from experts database intelligence, for the expert carries out the on-site review work of getting ready.During on-site review, the operated scorer of each evaluation expert and this expert is corresponding one by one.After host's declaration began to decide on awards through discussion to a certain project, the operator operated the PC of central data treating stations, and the bullets of this project is exported by projector with item types and relevant introduction.Simultaneously, the central data treating stations sends to relevant information on each scorer, and scorer is carried out initialization.Each scorer is pressed the information on the central data treating stations order real-time update display terminal.The evaluation expert is after fully understanding this project, according to the prompting on the scorer, by the scoring of the input of the keyboard on the scorer to each index of project.Central data treating stations computing machine has been collected all experts' scoring with the wireless mode remote auto, and data are handled, announce review result in real time, with review result and the automatic typing review result of relevant information database, this database provides functions such as report query and printing simultaneously.After all items evaluation finishes,, automatically project is sorted by score, announce the final review result by big projector according to the evaluation requirement, and document printing.

Because native system will be finished the processing to review data, and finally exports with various forms.Therefore, it needs sophisticated software as its internal support.The major function of native system software section is divided into data base administration, document management, scorer setting, on-site review, report printing 5 modules, and each functions of modules is as follows:

1. database management module.Various databases such as various expert databases, document database, result database are carried out various maintenance managements, and for leader's decision-making provides detailed explanation, and auxiliary leader makes a strategic decision.

2. document management module.The document information of the unit of declaring is respectively carried out discretize handle, set up corresponding database, make things convenient for various management such as the browsing of document, modification.

3. scorer is provided with module.Messaging parameter is set and selects the intelligent scoring device, and carry out corresponding one by one with the expert that participates in evaluation and electing.

4. on-site review module.Each project is carried out on-site review one by one, and the automatic input database of result, convenient later various processing.

5. report print module.Make various data sheets as required, form the Word document form.

Claims

1, a kind of wireless type estimating and examining system, system mainly is made up of central data treating stations and N intelligent scoring device, it is characterized in that: be wireless connections between central data treating stations and N the intelligent scoring device;

Central data reason station connects printer, projector and wireless type data communication interface card respectively by computing machine, adopts wheel to be the wireless network topology structure of poll between central data treating stations and N the intelligent scoring device; The wireless type data communication interface card is that core is formed by microcontroller AT89C51 and nRF401 wireless transceiver circuit, and wherein, the P2.6 of microcontroller AT89C51, P2.7 pin link to each other with 19 pin with the control end the 1st of 74LS244 serial port circuit respectively; Input end the 2nd pin of 74LS244 serial port circuit links to each other with the 9th pin R2OUT of MAX232 level shifting circuit, and the 6th pin links to each other with the TxD pin of microprocessor AT89C5 1 with 15 pin, and the 11st pin meets the data output end DO of nRF401 wireless transceiver circuit; Output terminal the 5th pin of 74LS244 serial port circuit links to each other with the 10th pin T2IN of MAX232 level shifting circuit, and the RxD pin of the 9th pin and 18 pin and microprocessor AT89C51 is connected together, and the 14th pin meets the data input pin DI of nRF401 wireless transceiver circuit; Microprocessor AT89C51 the 25th pin P2.4 selects the frequency of operation of wireless telecommunications by connecting the CS pin of wireless transceiver circuit nRF401; The P2.0 of microprocessor AT89C51, P2.1, P2.2 and P2.3 link to each other with CS, SI, SOUT and the SO of X5043 watch dog monitoring circuit respectively, and the RST pin of X5043 watch dog monitoring circuit is by the 9th pin preset end signal of triode 3904 control microprocessor AT89C51; The P1.0 of microprocessor AT89C51～P1.7 pin is connected with the D0～D7 of Universal USB 100 serial bus modules successively, and P3.4, P3.5, P3.6 and P3.7 pin link to each other with TXE, RXF, WR and the RD of USB100 respectively;

The core of intelligent scoring device is microcontroller AT89C52 and another nRF401 wireless transceiver circuit, and the nRF401 wireless transceiver circuit is by serial interface mode and microcontroller AT89C52 interface, with the communication of wireless type data communication interface card; Wherein, the RxD of microprocessor AT89C52 end links to each other with the output terminal DO of nRF401 wireless transceiver circuit, and TxD links to each other with output terminal DI, and P3.2, P3.3 link to each other with the CS pin with PWR_UP, the TXEN of nRF401 respectively with P3.4; P2.0～P2.7 of microprocessor AT89C52 is connected with 8 lead-in wires of 4*4 keyboard respectively; P0.0～P0.7 links to each other with 8 data lines D0～D7 of LCD LCD MODULE MGLS19264, and P1.4, P1.5 link to each other with viewing area control end CSA, the CSB of LCD, and P1.6 meets D/I, and P1.7 meets R/W, and P3.5 connects and makes LCD Enable Pin E; The P1.0 of microprocessor AT89C52, P1.1, P1.2 and P1.3 link to each other with CS, SI, SOUT and the SO of X5043 watch dog monitoring circuit respectively, and the RST pin of X5043 watch dog monitoring circuit is by the 9th pin preset end signal of triode 3904 control microprocessor AT89C52.