CN204718690U - A kind of Students ' Learning illuminance of head of a family's supervision tests wireless alarmer - Google Patents
A kind of Students ' Learning illuminance of head of a family's supervision tests wireless alarmer Download PDFInfo
- Publication number
- CN204718690U CN204718690U CN201520326318.9U CN201520326318U CN204718690U CN 204718690 U CN204718690 U CN 204718690U CN 201520326318 U CN201520326318 U CN 201520326318U CN 204718690 U CN204718690 U CN 204718690U
- Authority
- CN
- China
- Prior art keywords
- illuminance
- pin
- electric capacity
- circuit
- chip
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Alarm Systems (AREA)
Abstract
The Students ' Learning illuminance that the utility model discloses a kind of head of a family supervision tests wireless alarmer, is made up of illuminance detector and illuminance alarm; Illuminance detector detects power circuit by illuminance, illuminance testing circuit, and illuminance detects microcontroller circuit, and illuminance detects radio transmitter composition; Illuminance alarm to be reported to the police power circuit by illuminance, illuminance alarming wireless receiving circuit, illuminance warning microcontroller circuit, and illuminance alarm voice produce circuit, and illuminance alert audio power amplifier forms; If illuminance is lower than 300 luxs during Students ' Learning, illuminance detector is by wireless transmission warning message to illuminance alarm, and voice message that illuminance alarm sends " present light is too dark, woulds you please remind child to turn on light; prevent myopia ", the warning head of a family supervises Students ' Learning illuminance.
Description
Technical field
The utility model relates to the electronic technology field of the Students ' Learning illuminance test wireless alarmer of a kind of head of a family supervision.
Background technology
Illumination deficiency is myopia of student main cause, standard for lighting design of buildings GB_50034-2004 specifies, the illumination of general office must not be less than 300 luxs, could meet the needs of Vision Health to substantial light photograph, if illumination is lower than 300 luxs, the needs of Students ' Learning just can not be met.
But student is in during study, often have ignored the illuminance of academic environment, or cannot judge whether current light degree meets the requirement of Vision Health, cause intensity of illumination during Students ' Learning inadequate, deteriorated vision, therefore be badly in need of a kind ofly the head of a family can being facilitated to supervise, Students ' Learning illuminance tests warning device.
Utility model content
The Students ' Learning illuminance that the technical problems to be solved in the utility model is to provide a kind of head of a family supervision tests wireless alarmer, comprises illuminance detector and illuminance alarm two parts; Illuminance detector placed by the desk of Students ' Learning, and the head of a family wears illuminance alarm; When the illuminance in Students ' Learning place is lower than 300 luxs; illuminance detector will send the illuminance alarm that radio alarming information is worn to the head of a family; the voice message that illuminance alarm will send " present light is too dark; would you please remind child to turn on light; prevent myopia "; the warning head of a family will improve illuminance during Students ' Learning at once, notes vision protection.
The technical solution of the utility model is: a kind of Students ' Learning illuminance of head of a family's supervision tests wireless alarmer, is made up of illuminance detector and illuminance alarm; Illuminance detector detects power circuit by illuminance, illuminance testing circuit, and illuminance detects microcontroller circuit, and illuminance detects radio transmitter composition; Illuminance alarm to be reported to the police power circuit by illuminance, illuminance alarming wireless receiving circuit, illuminance warning microcontroller circuit, and illuminance alarm voice produce circuit, and illuminance alert audio power amplifier forms; When Students ' Learning, if illuminance testing circuit detects that illuminance is not less than 300 luxs, device does not carry out any prompting; If illuminance testing circuit detects that illuminance is lower than 300 luxs; illuminance detects microcontroller circuit and detects radio transmitter by illuminance; send wireless alarm signal to illuminance alarming wireless receiving circuit; to be reported to the police microcontroller circuit by illuminance, trigger illuminance alarm voice and produce circuit, send the voice message of " present light is too dark; would you please remind child to turn on light; prevent myopia ", the warning head of a family will improve illuminance during Students ' Learning at once, notes vision protection.
Described illuminance detects power circuit and is made up of the first electric battery and the first switch; First battery anode connects the first switch, and the first switch other end exports the first DC power anode; The negative pole of the first electric battery is the negative pole of the first direct supply; First direct supply provides working power to illuminance testing circuit, illuminance detects microcontroller circuit, illuminance detects radio transmitter.
Described illuminance testing circuit is made up of photoresistance and the first resistance; Photoresistance, the first resistant series, be connected between the first DC power anode and negative pole; The other end of photoresistance simultaneously connects input end 9 pin of the first microcontroller.
Described illuminance detects microcontroller circuit and is made up of the first microcontroller, the first crystal oscillator, the first electric capacity, the second electric capacity; 4 pin of the first microcontroller are connected by the first crystal oscillator with 5 pin, and 4 pin of the first microcontroller connect the negative pole of the first direct supply by the first electric capacity, and 5 pin of the first microcontroller connect the negative pole of the first direct supply by the second electric capacity.
Described illuminance detects radio transmitter and is made up of wireless transmit chip, the second crystal oscillator, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first inductance, the second inductance, the 3rd inductance, the 4th inductance, the first antenna; First microcontroller and wireless transmit chip adopt SPI mode to be connected, 1st pin data input pin of wireless transmit chip, the 2nd pin clock input pin, the 3rd pin sheet select input pin, the 14th pin data output pin, connect 19 of the first microcontroller respectively, 18,17,15 pin, the first microcontroller adopts simulation SPI mode to communicate; 16th pin wireless-modulated data input pin of wireless transmit chip, connects 16 pin of the first microcontroller; 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first inductance, the second inductance, the 3rd inductance, the 4th inductance composition first day line impedence matching network, first day line impedence matching network input end connects wireless transmit chip wireless power and amplifies N output pin 12 pin and wireless power amplification P output pin 13 pin, first day line impedence matching network output terminal connects the first antenna, realizes the impedance matching of the first antenna and wireless transmit chip radio frequency output terminal; The wireless power of wireless transmit chip amplifies N output pin 12 pin, connects the first DC power anode by the first inductance, the second inductance; The wireless power of wireless transmit chip amplifies N output pin 12 pin, connects the first antenna by the 3rd electric capacity; The wireless power of wireless transmit chip amplifies P output pin 13 pin, connects the first DC power cathode by the 5th electric capacity; The wireless power of wireless transmit chip amplifies P output pin 13 pin, connects the first antenna by the 4th inductance; The wireless power of wireless transmit chip amplifies P output pin 13 pin, connects the first DC power cathode by the 3rd inductance, the 4th electric capacity; First inductance, the second inductance, the 3rd inductance, the 4th electric capacity link together.9 pin of wireless transmit chip are connected with the second crystal oscillator, and the second crystal oscillator provides wireless transmit chip local oscillation signal.
Described illuminance warning power circuit is made up of the second electric battery and second switch; Second battery anode connects second switch, and the second switch other end exports the second DC power anode; The negative pole of the second electric battery is the negative pole of the second direct supply; Second direct supply provides working power to produce circuit, illuminance alert audio power amplifier to illuminance alarming wireless receiving circuit, illuminance warning microcontroller circuit, illuminance alarm voice.
Described illuminance warning microcontroller circuit is made up of the second microcontroller, the 4th crystal oscillator, the 8th electric capacity, the 9th electric capacity; Connect the 4th crystal oscillator between 4 pin of the second microcontroller and 5 pin, 4 pin of the second microcontroller connect the negative pole of the second direct supply by the 8th electric capacity, 5 pin of the second microcontroller connect the negative pole of the second direct supply by the 9th electric capacity.
Described illuminance alarming wireless receiving circuit is made up of wireless receiving chip, the 3rd crystal oscillator, the 6th electric capacity, the 7th electric capacity, the 5th inductance, the second antenna; Second microcontroller and wireless receiving chip adopt SPI mode to be connected, 1st pin data input pin of wireless receiving chip, the 2nd pin clock input pin, the 3rd pin sheet select input pin, the 14th pin data output pin, connect 19 of the second microcontroller respectively, 18,17,16 pin, the second microcontroller adopts simulation SPI mode to communicate; 5th pin interrupt output pin of wireless receiving chip, connects 7 pin external interrupt pin of the second microcontroller; Second Antenna Impedance Matching network of the 6th electric capacity, the 7th electric capacity, the 5th inductance composition wireless receiving chip, second Antenna Impedance Matching network input connects the second antenna, second Antenna Impedance Matching network output connects wireless input pin 13 pin and 12 pin of wireless receiving chip, realizes the impedance matching of the second antenna and wireless receiving chip wireless input; Connect the 5th inductance between wireless input pin 13 pin of wireless receiving chip and 12 pin, 13 pin of wireless receiving chip connect the second antenna by the 6th electric capacity, and 12 pin of wireless receiving chip connect the second DC power cathode by the 7th electric capacity; 9 pin of wireless receiving chip connect the 3rd crystal oscillator, and the 3rd crystal oscillator provides the local oscillation signal of wireless receiving chip.
Described illuminance alarm voice produce circuit and are made up of speech chip, the 3rd resistance, the 4th resistance, the tenth electric capacity; Speech chip recorded " present light is too dark; would you please remind child turn on light; prevent myopia " voice signal, voice output control pin 7 pin of speech chip connects output pin 11 pin of the second microcontroller, by the output pin 11 foot control voice broadcast of the second microcontroller; Voice output pin 7 pin of speech chip connects the tenth electric capacity, and export voice signal, the tenth electric capacity is AC coupling effect; Meanwhile, speech chip voice output pin 7 pin is connected to the second DC power cathode by the 4th resistance, is direct current biasing resistance; RC oscillator input pin 8 pin of speech chip, connect the second DC power anode by the 3rd resistance, the 3rd resistance and speech chip internal circuit form RC oscillatory circuit.
Described illuminance alert audio power amplifier is made up of audio frequency power amplifier chip, the 5th resistance, the 6th resistance, the 7th resistance, the 11 electric capacity, the 12 electric capacity, the 13 electric capacity, the 14 electric capacity, potentiometer, loudspeaker; By the 5th resistance, potentiometer, the 6th resistant series, 3 pin of potentiometer connect audio frequency input pin 7 pin of audio frequency power amplifier chip, can regulate the size of input audio frequency in setting range; 5th resistance connects the tenth electric capacity, is illuminance alert audio power amplifier audio input end; 11 electric capacity connects audio frequency input pin 7 pin of audio frequency power amplifier chip, plays input filter effect; Power amplifier output pin 1 pin of audio frequency power amplifier chip, connects loudspeaker by coupling capacitance the 13 electric capacity; 14 electric capacity and the 7th resistant series, connect power amplifier output pin 1 pin of audio frequency power amplifier chip, be high-frequency impulse absorbing circuit, avoid high-frequency self-excitation.
The beneficial effects of the utility model are, student detects illuminance with illuminance detector, and the head of a family monitors with illuminance alarm, when Students ' Learning, if illuminance testing circuit detects that illuminance is lower than 300 luxs, illuminance detects microcontroller circuit and detects radio transmitter by illuminance, send wireless signal to illuminance alarming wireless receiving circuit, to be reported to the police microcontroller circuit by illuminance, trigger illuminance alarm voice and produce circuit, by illuminance alert audio power amplifier and illuminance alarm speaker, send to the head of a family that " present light is too dark, would you please remind child to turn on light, prevent myopia " voice message, the warning head of a family will note illuminance when supervising Students ' Learning, note vision protection.
Accompanying drawing explanation
Fig. 1 is the system architecture block scheme of the Students ' Learning illuminance test wireless alarmer of a kind of head of a family supervision.
Fig. 2 is that illuminance detects power circuit, illuminance testing circuit, and illuminance detects microcontroller circuit, and illuminance detects the schematic diagram of radio transmitter.
Fig. 3 is illuminance warning power circuit, illuminance alarming wireless receiving circuit, the schematic diagram of illuminance warning microcontroller circuit.
Fig. 4 is that illuminance alarm voice produce circuit, the schematic diagram of illuminance alert audio power amplifier.
Embodiment
The utility model is further illustrated as follows with example by reference to the accompanying drawings.
As shown in Figure 1, a kind of Students ' Learning illuminance of head of a family's supervision tests wireless alarmer, is made up of illuminance detector and illuminance alarm; Illuminance detector detects power circuit 100 by illuminance, illuminance testing circuit 200, and illuminance detects microcontroller circuit 300, and illuminance detects radio transmitter 400 and forms; Illuminance alarm by illuminance warning power circuit 500, illuminance alarming wireless receiving circuit 600, illuminance warning microcontroller circuit 700, illuminance alarm voice produce circuit 800, illuminance alert audio power amplifier 900 forms; When Students ' Learning, if illuminance testing circuit 200 detects that illuminance is not less than 300 luxs, device does not carry out any prompting; If illuminance testing circuit 200 detects that illuminance is lower than 300 luxs; illuminance detects microcontroller circuit 300 and detects radio transmitter 400 by illuminance; send wireless alarm signal to illuminance alarming wireless receiving circuit 600; by illuminance warning microcontroller circuit 700; trigger illuminance alarm voice and produce circuit 800; send the voice message of " present light is too dark; would you please remind child to turn on light; prevent myopia "; the warning head of a family will improve illuminance during Students ' Learning at once, notes vision protection.
As shown in Figure 2, illuminance detection power circuit 100 is made up of the first electric battery 101 and the first switch 102; First electric battery 101 positive pole connects first switch 102, first switch 102 other end and exports the first DC power anode; The negative pole of the first electric battery 101 is negative poles of the first direct supply; First direct supply provides working power to illuminance testing circuit 200, illuminance detects microcontroller circuit 300, illuminance detects radio transmitter 400.
Illuminance testing circuit 200 is made up of photoresistance 201 and the first resistance 202; Photoresistance 201, first resistance 202 is connected, and is connected between the first DC power anode and negative pole; The other end of photoresistance 201 simultaneously connects 9 pin of the first microcontroller 301, photoresistance 201 detects Students ' Learning intensity of illumination, the voltage signal of exporting change gives input end 9 pin of the first microcontroller 301, and the first microcontroller 301 carries out AD conversion, just can calculate current light intensity.
Illuminance detects microcontroller circuit 300 and is made up of the first microcontroller 301, first crystal oscillator 303, first electric capacity 302, second electric capacity 304; 4 pin of the first microcontroller 301 are connected by the first crystal oscillator 303 with 5 pin, 4 pin of the first microcontroller 301 connect the negative pole of the first direct supply by the first electric capacity 302,5 pin of the first microcontroller 301 connect the negative pole of the first direct supply by the second electric capacity 304.
Illuminance detects radio transmitter 400 and is made up of wireless transmit chip 401, second crystal oscillator 402, the 3rd electric capacity 403, the 4th electric capacity 408, the 5th electric capacity 410, first inductance 405, second inductance 406, the 3rd inductance 407, the 4th inductance 409, first antenna 404; First microcontroller 301 and wireless transmit chip 401 adopt SPI mode to be connected, 1st pin data input pin of wireless transmit chip 401, the 2nd pin clock input pin, the 3rd pin sheet select input pin, the 14th pin data output pin, connect 19,18,17,15 pin of the first microcontroller 301 respectively, the first microcontroller 301 adopts simulation SPI mode to communicate; 16th pin wireless-modulated data input pin of wireless transmit chip 401, connects 16 pin of the first microcontroller 301; 3rd electric capacity 403, the 4th electric capacity 408, the 5th electric capacity 410, first inductance 405, second inductance 406, the 3rd inductance 407, the 4th inductance 409 form the first antenna 404 impedance matching network, the wireless power that first antenna 404 impedance matching network input end connects wireless transmit chip 401 amplifies N output pin 12 pin and wireless power amplification P output pin 13 pin, first antenna 404 impedance matching network output terminal connects the first antenna 404, realizes the impedance matching of the first antenna 404 and wireless transmit chip 401 radio-frequency (RF) output end; The wireless power of wireless transmit chip 401 amplifies N output pin 12 pin, connects the first DC power anode by the first inductance 405, second inductance 406; The wireless power of wireless transmit chip 401 amplifies N output pin 12 pin, connects the first antenna 404 by the 3rd electric capacity 403; The wireless power of wireless transmit chip 401 amplifies P output pin 13 pin, connects the first DC power cathode by the 5th electric capacity 410; The wireless power of wireless transmit chip 401 amplifies P output pin 13 pin, connects the first antenna 404 by the 4th inductance 409; The wireless power of wireless transmit chip 401 amplifies P output pin 13 pin, connects the first DC power cathode by the 3rd inductance 407, the 4th electric capacity 408; First inductance 405, second inductance 406, the 3rd inductance 407, the 4th electric capacity 408 link together.9 pin of wireless transmit chip 401 are connected with the second crystal oscillator 402, and the second crystal oscillator 402 provides wireless transmit chip 401 local oscillation signal; When the first microcontroller 301 detects intensity of illumination lower than 300 lux, the first microcontroller 301, by the first antenna 404 impedance matching network and the first antenna 404, sends wireless alarm signal to illuminance alarming wireless receiving circuit 600.
As shown in Figure 3, illuminance warning power circuit 500 is made up of the second electric battery 501 and second switch 502; Second electric battery 501 positive pole connects second switch 502, and second switch 502 other end exports the second DC power anode; The negative pole of the second electric battery 501 is negative poles of the second direct supply; Second direct supply provides working power to produce circuit 800, illuminance alert audio power amplifier 900 to illuminance alarming wireless receiving circuit 600, illuminance warning microcontroller circuit 700, illuminance alarm voice.
Illuminance warning microcontroller circuit 700 is made up of the second microcontroller 701, the 4th crystal oscillator 703, the 8th electric capacity 702, the 9th electric capacity 704; The 4th crystal oscillator 703 is connected between 4 pin of the second microcontroller 701 and 5 pin, 4 pin of the second microcontroller 701 connect the negative pole of the second direct supply by the 8th electric capacity 702,5 pin of the second microcontroller 701 connect the negative pole of the second direct supply by the 9th electric capacity 704.
Illuminance alarming wireless receiving circuit 600 is made up of wireless receiving chip 601, the 3rd crystal oscillator 602, the 6th electric capacity 604, the 7th electric capacity 606, the 5th inductance 605, second antenna 603; Second microcontroller 701 and wireless receiving chip 601 adopt SPI mode to be connected, 1st pin data input pin of wireless receiving chip 601, the 2nd pin clock input pin, the 3rd pin sheet select input pin, the 14th pin data output pin, connect 19,18,17,16 pin of the second microcontroller 701 respectively, the second microcontroller 701 adopts simulation SPI mode to communicate; 5th pin interrupt output pin of wireless receiving chip 601, connects 7 pin external interrupt pin of the second microcontroller 701; 6th electric capacity 604, the 7th electric capacity 606, the 5th inductance 605 form the second antenna 603 impedance matching network of wireless receiving chip 601, second antenna 603 impedance matching network input end connects the second antenna 603, second antenna 603 impedance matching network output terminal connects wireless input pin 13 pin and 12 pin of wireless receiving chip 601, realizes the impedance matching of the second antenna 603 and wireless receiving chip 601 wireless input; The 5th inductance 605 is connected between wireless input pin 13 pin of wireless receiving chip 601 and 12 pin, 13 pin of wireless receiving chip 601 connect the second antenna 603 by the 6th electric capacity 604, and 12 pin of wireless receiving chip 601 connect the second DC power cathode by the 7th electric capacity 606; 9 pin of wireless receiving chip 601 connect the local oscillation signal that the 3rd crystal oscillator the 602, three crystal oscillator 602 provides wireless receiving chip 601; When wireless alarm signal is by the second antenna 603 and the second antenna 603 impedance matching network, is input to wireless receiving chip 601, after wireless receiving chip 601 is decoded, sends to the second microcontroller 701 by SPI, after data analysis, carry out audio alert.
As shown in Figure 4, illuminance alarm voice generation circuit 800 is made up of speech chip 801, the 3rd resistance 802, the 4th resistance 803, the tenth electric capacity 804; Speech chip 801 recorded " present light is too dark; would you please remind child turn on light; prevent myopia " voice signal, voice output control pin 7 pin of speech chip 801 connects 11 pin of the second microcontroller 701, by 11 foot control voice broadcasts of the second microcontroller 701; Voice output pin 7 pin of speech chip 801 connects the tenth electric capacity 804, and export voice signal, the tenth electric capacity 804 is AC coupling effects; Meanwhile, speech chip 8017 pin is connected to the second DC power cathode by the 4th resistance 803, is direct current biasing resistance; RC oscillator input pin 8 pin of speech chip 801, connects the second DC power anode by the 3rd resistance 802, and the 3rd resistance 802 forms RC oscillatory circuit with speech chip 801 internal circuit.
Illuminance alert audio power amplifier 900 is made up of audio frequency power amplifier chip 901, the 5th resistance 902, the 6th resistance 904, the 7th resistance the 909, the 11 electric capacity the 905, the 12 electric capacity the 906, the 13 electric capacity the 907, the 14 electric capacity 908, potentiometer 903, loudspeaker 910; Connected by the 5th resistance 902, potentiometer 903, the 6th resistance 904,3 pin of potentiometer 903 connect audio frequency input pin 7 pin of audio frequency power amplifier chip 901, can regulate the size of input audio frequency in setting range; 5th resistance 902 connects the tenth electric capacity 804, is illuminance alert audio power amplifier 900 audio input end; 11 electric capacity 905 connects audio frequency input pin 7 pin of audio frequency power amplifier chip 901, plays input filter effect; Power amplifier output pin 1 pin of audio frequency power amplifier chip 901, connects loudspeaker 910 by coupling capacitance the 13 electric capacity 907; 14 electric capacity 908 is connected with the 7th resistance 909, connects power amplifier output pin 1 pin of audio frequency power amplifier chip 901, is high-frequency impulse absorbing circuit, avoids high-frequency self-excitation.
A kind of Students ' Learning illuminance of head of a family's supervision tests wireless alarmer, when illuminance is higher than 300 lux, the photoresistance 201 of illuminance detector is low resistance state, and the first microcontroller 301 detects that illuminance is higher than 300 luxs, and device does not carry out alarm.
When illuminance is lower than 300 luxs, the photoresistance 201 of illuminance detector is high value state, first microcontroller 301 detects that illuminance is lower than 300 luxs, and the first microcontroller 301, by wireless transmit chip 401, sends the wireless messages of warning to illuminance alarm.
The wireless receiving chip 601 of illuminance alarm receives the alarming wireless information of illuminance detector transmission by the second antenna 603, wireless receiving chip 601 output alarm data-signal gives the second microcontroller 701, the voice signal that second microcontroller 701 triggering voice chip 801 sends " present light is too dark; would you please remind child to turn on light; prevent myopia ", voice signal, after audio frequency power amplifier chip 901 carries out power amplification, sends voice message by loudspeaker 910.
Should be understood that; for the utility model through absolutely proving; the embodiment of multiple conversion and modification can also be had; be not limited to the instantiation of above-mentioned embodiment; above-mentioned example is as just explanation of the present utility model; instead of restriction, in a word, which apparent conversion or alternative and remodeling to those skilled in the art protection domain of the present utility model comprises.
Claims (1)
1. the Students ' Learning illuminance of head of a family's supervision tests a wireless alarmer, comprises illuminance detector and illuminance alarm; Illuminance detector detects power circuit by illuminance, illuminance testing circuit, and illuminance detects microcontroller circuit, and illuminance detects radio transmitter composition; Illuminance alarm to be reported to the police power circuit by illuminance, illuminance alarming wireless receiving circuit, illuminance warning microcontroller circuit, and illuminance alarm voice produce circuit, and illuminance alert audio power amplifier forms; It is characterized in that described illuminance testing circuit is made up of photoresistance and the first resistance; Photoresistance, the first resistant series, the other end of photoresistance connects the input end of the first microcontroller; Described illuminance detects radio transmitter and is made up of wireless transmit chip, the second crystal oscillator, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first inductance, the second inductance, the 3rd inductance, the 4th inductance, the first antenna; First microcontroller and wireless transmit chip adopt SPI mode to be connected, and the first microcontroller adopts simulation SPI mode to communicate; 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, the first inductance, the second inductance, the 3rd inductance, the 4th inductance composition first day line impedence matching network, first day line impedence matching network input end connects wireless transmit chip wireless power and amplifies N output pin and wireless power amplification P output pin, first day line impedence matching network output terminal connects the first antenna, realizes the impedance matching of the first antenna and wireless transmit chip radio frequency output terminal; Described illuminance alarming wireless receiving circuit is made up of wireless receiving chip, the 3rd crystal oscillator, the 6th electric capacity, the 7th electric capacity, the 5th inductance, the second antenna; Second microcontroller and wireless receiving chip adopt SPI mode to be connected, and the second microcontroller adopts simulation SPI mode to communicate; The interrupt output pin of wireless receiving chip, connects the external interrupt pin of the second microcontroller; Second Antenna Impedance Matching network of the 6th electric capacity, the 7th electric capacity, the 5th inductance composition wireless receiving chip, second Antenna Impedance Matching network input connects the second antenna, second Antenna Impedance Matching network output connects the wireless input pin of wireless receiving chip, realizes the impedance matching of the second antenna and wireless receiving chip wireless input; Described illuminance alarm voice produce circuit and are made up of speech chip, the 3rd resistance, the 4th resistance, the tenth electric capacity; The voice output control pin of speech chip connects the output pin of the second microcontroller, by the second microprocessor controls voice broadcast; Voice output pin 7 pin of speech chip connects the tenth electric capacity, exports voice signal; Speech chip voice output pin is connected to the second DC power cathode by the 4th resistance; The RC oscillator input pin of speech chip, connects the second DC power anode by the 3rd resistance, and the 3rd resistance and speech chip internal circuit form RC oscillatory circuit; Described illuminance alert audio power amplifier is made up of audio frequency power amplifier chip, the 5th resistance, the 6th resistance, the 7th resistance, the 11 electric capacity, the 12 electric capacity, the 13 electric capacity, the 14 electric capacity, potentiometer, loudspeaker; 5th resistance, potentiometer, the 6th resistant series, 3 pin of potentiometer connect the audio frequency input pin of audio frequency power amplifier chip, can regulate the size of input audio frequency in setting range; 5th resistance connects the tenth electric capacity, is illuminance alert audio power amplifier audio input end; The power amplifier output pin of audio frequency power amplifier chip, connects loudspeaker by coupling capacitance the 13 electric capacity; 14 electric capacity and the 7th resistant series, connect the power amplifier output pin of audio frequency power amplifier chip, be high-frequency impulse absorbing circuit, avoid high-frequency self-excitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326318.9U CN204718690U (en) | 2015-05-20 | 2015-05-20 | A kind of Students ' Learning illuminance of head of a family's supervision tests wireless alarmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326318.9U CN204718690U (en) | 2015-05-20 | 2015-05-20 | A kind of Students ' Learning illuminance of head of a family's supervision tests wireless alarmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204718690U true CN204718690U (en) | 2015-10-21 |
Family
ID=54317681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520326318.9U Withdrawn - After Issue CN204718690U (en) | 2015-05-20 | 2015-05-20 | A kind of Students ' Learning illuminance of head of a family's supervision tests wireless alarmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204718690U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833416A (en) * | 2015-05-20 | 2015-08-12 | 湖南工业大学 | Parent supervised illumination intensity test wireless alarming device for student learning |
| CN111724552A (en) * | 2020-07-17 | 2020-09-29 | 中石化广州工程有限公司 | Regional explosion-proof audible alarm circuit, regional explosion-proof audible alarm and system |
-
2015
- 2015-05-20 CN CN201520326318.9U patent/CN204718690U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833416A (en) * | 2015-05-20 | 2015-08-12 | 湖南工业大学 | Parent supervised illumination intensity test wireless alarming device for student learning |
| CN104833416B (en) * | 2015-05-20 | 2016-09-14 | 湖南工业大学 | The Students ' Learning illuminance of a kind of head of a family supervision tests wireless alarmer |
| CN111724552A (en) * | 2020-07-17 | 2020-09-29 | 中石化广州工程有限公司 | Regional explosion-proof audible alarm circuit, regional explosion-proof audible alarm and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103886697A (en) | Reminding device and method of unread messages | |
| CN205912209U (en) | Wireless recording microphone with low alarm device is crossed to electric quantity | |
| CN204718690U (en) | A kind of Students ' Learning illuminance of head of a family's supervision tests wireless alarmer | |
| CN104833416B (en) | The Students ' Learning illuminance of a kind of head of a family supervision tests wireless alarmer | |
| CN202084149U (en) | Elevator smoke detector | |
| CN205451425U (en) | Domestic security alarm | |
| CN204596039U (en) | A kind of safety-protection system based on GSM | |
| CN203911887U (en) | Intelligent sound control switch | |
| CN204188716U (en) | A kind of monitoring electromagnetic interference data warning device | |
| CN107092240A (en) | Intelligent domestic system | |
| CN203552358U (en) | Prepayment card meter alarm device | |
| CN201994035U (en) | Advertisement display control device | |
| CN201449655U (en) | Sound-prompt wireless door magnetic sensor | |
| CN204884060U (en) | Protection against electric shock warning circuit and intelligent bracelet that has protection against electric shock function | |
| CN204189279U (en) | Based on the gas leak testing and alarm device of low-power consumption bluetooth | |
| CN203133152U (en) | High voltage detecting instrument | |
| CN204204173U (en) | A kind of wireless alarm system based on telephone network | |
| CN203522859U (en) | Incoming call prompting apparatus with function of mobile phone signal detection | |
| CN202066899U (en) | Circuit system of intelligent safety cap | |
| CN202584363U (en) | Earthquake escape indicating device | |
| CN107248874A (en) | A kind of safety-protection system based on power carrier communication | |
| CN202133696U (en) | Intelligent ammeter cost notifying alarm | |
| CN202084131U (en) | Power supply fire hazard detection module | |
| CN202216767U (en) | Low-voltage cabinet cable temperature monitoring system | |
| CN202049574U (en) | Antique safety monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151021 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |