CN202362391U - Detection device for computer radiation - Google Patents

Detection device for computer radiation Download PDF

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Publication number
CN202362391U
CN202362391U CN2011205246777U CN201120524677U CN202362391U CN 202362391 U CN202362391 U CN 202362391U CN 2011205246777 U CN2011205246777 U CN 2011205246777U CN 201120524677 U CN201120524677 U CN 201120524677U CN 202362391 U CN202362391 U CN 202362391U
Authority
CN
China
Prior art keywords
computer
chip microcomputer
radiation
chip
detection
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.)
Expired - Fee Related
Application number
CN2011205246777U
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Chinese (zh)
Inventor
文妙妙
许菁
赵红芬
周副权
彭吉龙
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Changan University
Original Assignee
Changan University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changan University filed Critical Changan University
Priority to CN2011205246777U priority Critical patent/CN202362391U/en
Application granted granted Critical
Publication of CN202362391U publication Critical patent/CN202362391U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a detection device for computer radiation. The detection device comprises a single chip, a radiation sensor, an LED (light-emitting diode) display, an LED indicator light and a buzzer, wherein the LED indicator light and the buzzer are respectively connected with the single chip; the LED display is connected with the single chip through a display driver; and the computer radiation sensor is connected with the single chip through an operational amplifier. With the adoption of the device, a computer user can be helped to find out the safe distance between the user and the computer, once the distance of the computer user and a radiation source is closer, the detection device can automatically send out alarm when the radiation intensity is larger, so that the computer user can be reminded to enlarge the distance with the computer. The detection device is simple in circuit design and low in manufacturing cost.

Description

A kind of computer radiate pick-up unit
Technical field
The utility model relates to the automatic electronic technical field, is specifically related to a kind of computer radiate pick-up unit.
Background technology
The electromagnetic radiation that computing machine produces can be divided into radio frequency electromagnetic and power frequency electromagnetic wave.In frequency was 30MHZ~3000MHZ scope, the radiation standard limit value of radio frequency electromagnetic was 40 μ w/cm 2The power frequency electromagenetic wave radiation is comparatively safe concerning human body below 0.4 μ T.Evidence computer radiate intensity with apart from the distance dependent of radiation source, just big more apart from the nearer computer radiate of radiation source, also do not have in the prior art the device of living, the computer radiate of working environment detects.
Summary of the invention
To the defective or the deficiency of prior art, the purpose of the utility model is to provide a kind of computer radiate pick-up unit.
For realizing above-mentioned technical assignment, the utility model is taked following technical solution:
A kind of computer radiate pick-up unit; It is characterized in that; Comprise single-chip microcomputer, radiation sensor, light-emitting diode display, LED light and hummer; Said LED light is connected with single-chip microcomputer respectively with hummer, and said light-emitting diode display is connected with single-chip microcomputer through display driver, and said computer radiate sensor is connected with single-chip microcomputer through operational amplifier.
Said single-chip microcomputer adopts the AT89C52 single-chip microcomputer.
Said radiation sensor adopts the EP330 radiation sensor.
Said display driver adopts the MAX7219 chip.
Said operational amplifier adopts the LM324 operational amplifier.
The device of the utility model can help the computer user to find the safe distance between itself and the computer, in case from the close together of radiation source, when radiation intensity was big, this device can give the alarm automatically, reminds people should enlarge and computer between distance; And device circuit simplicity of design, preparation cost are cheap.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the workflow synoptic diagram of the device of the utility model.
Below in conjunction with embodiment and accompanying drawing the utility model is done further explain.
Embodiment
Embodiment:
With reference to figure 1; The computer radiate pick-up unit of present embodiment comprises single-chip microcomputer, radiation sensor, light-emitting diode display, LED light and hummer; Said LED light is connected with single-chip microcomputer respectively with hummer; Said light-emitting diode display is connected with single-chip microcomputer through display driver, and said computer radiate sensor is connected with single-chip microcomputer through operational amplifier; Wherein single-chip microcomputer adopts the AT89C52 single-chip microcomputer, and radiation sensor adopts the EP330 radiation sensor, and display driver adopts the MAX7219 chip, and operational amplifier adopts the LM324 operational amplifier.This device adopts No. 5 alkaline batteries of 6 joints to carry out power supply and supplies with, and other unit carry out the power supply supply after needing step-down to become 5V.
Device is at first detected apart from the computer radiate intensity in the computer certain limit by radiation sensor; Through showing via charactron in the single-chip microcomputer calculation process; When limit value that electromagnetic radiation intensity surpasses regulation then hummer will send alerting signal and adjust the distance between self and the computer to remind the computer user, protection is healthy, the purpose of prevention computer radiate thereby reach.
Near the electromagnetic radiation information of reception computer radiate computer that detecting unit sends that the AT89C52 monolithic function that is adopted is real-time; And these information are handled fast and accurately; According to the radiation intensity of computer radiate source different distance and the safe radiation limit value that sets, the control signal after the output of computer radiate intensity display unit and hummer is handled then.
The EP330 radiation sensor receives the signal of electromagnetic radiation; Accomplish detection through point-contact diode; After amplifying shaping, send single-chip microcomputer with analog voltage signal to through filter network, the detected electromagnetic radiation information of amplifying circuit again, further to handle.Radiation sensor is sent into the voltage signal of electromagnetic radiation intensity information and is carried out rectification among the LM324 and amplify, and the 1OUT pin of LM324 is connected with the PA0 pin of monolithic AT89C52, sends into single-chip microcomputer after analog voltage signal is amplified 5 times and carries out analog digital and change.The PB5 pin of single-chip microcomputer is connected with the DIN pin of LED display driver MAX7219 as serial data output, and data are failed among the MAX7219 through the DIN pin.The PB7 pin is connected with time clock CLK pin, and the PD0 pin adds the LOAD pin with data and is connected, with the electromagnetic radiation information control signal through sending the LED display driver to after the single-chip microcomputer calculation process.
Light-emitting diode display adopts 7 piece of digital light-emitting diode displays of 48 bit digital; 8 LED display driver drives of serial line interface that this display is produced by Maxim company; It can be real-time the processing of being exported of reception single-chip microcomputer after control signal, and on display, demonstrate the electromagnetic radiation intensity information of current corresponding computer.According to the measurement range and the precision parameter of sensor, electromagnetic radiation intensity information is that unit directly shows with μ T.
LED light and piezo buzzer play the warning effect; Wherein LED light adopts three LED light emitting diodes; And adopt red, green two all various colors to connect PB0, the PB1 pin of single chip computer AT 89C52 respectively; Red colored lamp is bright to be that the expression electromagnetic radiation intensity is too high, and the bright expression electromagnetic radiation of green light is in normal range.
With reference to Fig. 2, after system's power supply and program initialization, the EP330 sensor probe begins to detect near the electromagnetic radiation intensity of computer, and with the form output of detected electromagnetic radiation intensity information with aanalogvoltage; Since the voltage signal exported of electromagnetic radiation sensor too a little less than; Single-chip microcomputer detect less than, so the analog voltage signal of sensor output is sent into the amplification rectification circuit of being made up of LM324, send into the A/D mouth of single-chip microcomputer with this 5 times of signal amplification and after carrying out shaping; After carrying out the analog digital conversion; According to the curvilinear function of voltage that sets in the program and electromagnetic radiance, calculate near the electromagnetism spoke intensity of computer, and preserve result of calculation; And this electromagnetic radiation intensity information sent to by light-emitting diode display, on this display, show current electromagnetic radiation intensity.If electromagnetic radiation intensity surpassed the scope that sets, then the control signal sent LED light emitting diode and piezo buzzer of single-chip microcomputer makes its warning.Thereby remind the computer user to enlarge and computer between distance, detect once more after the variable in distance, so reciprocation cycle up to the computer user till safe range.
Used electronic devices and components all are commercially available known product in the device of the utility model, and those skilled in the art can realize the connection of each electronic devices and components according to the application's technique effect.

Claims (5)

1. computer radiate pick-up unit; It is characterized in that; Comprise single-chip microcomputer, radiation sensor, light-emitting diode display, LED light and hummer; Said LED light is connected with single-chip microcomputer respectively with hummer, and said light-emitting diode display is connected with single-chip microcomputer through display driver, and said computer radiate sensor is connected with single-chip microcomputer through operational amplifier.
2. computer radiate pick-up unit as claimed in claim 1 is characterized in that, said single-chip microcomputer adopts the AT89C52 single-chip microcomputer.
3. computer radiate pick-up unit as claimed in claim 1 is characterized in that, said radiation sensor adopts the EP330 radiation sensor.
4. computer radiate pick-up unit as claimed in claim 1 is characterized in that, said display driver adopts the MAX7219 chip.
5. computer radiate pick-up unit as claimed in claim 1 is characterized in that, said operational amplifier adopts the LM324 operational amplifier.
CN2011205246777U 2011-12-13 2011-12-13 Detection device for computer radiation Expired - Fee Related CN202362391U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205246777U CN202362391U (en) 2011-12-13 2011-12-13 Detection device for computer radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205246777U CN202362391U (en) 2011-12-13 2011-12-13 Detection device for computer radiation

Publications (1)

Publication Number Publication Date
CN202362391U true CN202362391U (en) 2012-08-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205246777U Expired - Fee Related CN202362391U (en) 2011-12-13 2011-12-13 Detection device for computer radiation

Country Status (1)

Country Link
CN (1) CN202362391U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103033691A (en) * 2012-12-18 2013-04-10 中国人民解放军第三军医大学 Individual electromagnetic radiation exposure monitoring and alarming device
CN103675476A (en) * 2012-09-17 2014-03-26 联想(北京)有限公司 Information processing method and electronic equipment
CN103353555B (en) * 2013-07-10 2016-08-31 浙江先芯科技有限公司 Portable low power-consumption electromagnet radiation detection instrument and detection method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103675476A (en) * 2012-09-17 2014-03-26 联想(北京)有限公司 Information processing method and electronic equipment
CN103033691A (en) * 2012-12-18 2013-04-10 中国人民解放军第三军医大学 Individual electromagnetic radiation exposure monitoring and alarming device
CN103353555B (en) * 2013-07-10 2016-08-31 浙江先芯科技有限公司 Portable low power-consumption electromagnet radiation detection instrument and detection method

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120801

Termination date: 20121213

C17 Cessation of patent right