CN104519610A - Wireless temperature measuring circuit and LED illuminating device - Google Patents
Wireless temperature measuring circuit and LED illuminating device Download PDFInfo
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- CN104519610A CN104519610A CN201310443425.5A CN201310443425A CN104519610A CN 104519610 A CN104519610 A CN 104519610A CN 201310443425 A CN201310443425 A CN 201310443425A CN 104519610 A CN104519610 A CN 104519610A
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Abstract
The embodiments of the invention disclose a wireless temperature measuring circuit and an LED illuminating device. The circuit comprises a chip U1, a crystal oscillation circuit, a temperature sensing circuit, a reset circuit, a display circuit, a filter circuit, a sending circuit and a receiving circuit, wherein the crystal oscillation circuit is connected with the chip U1 for providing crystal oscillation for a temperature control circuit, the temperature sensing circuit is connected with the chip U1 for obtaining the current temperature of the temperature control circuit, the reset circuit is connected with the chip U1 for resetting the chip U1, the display circuit is connected with the chip U1 for displaying the current temperature of the temperature control circuit, obtained by the temperature sensing circuit, the filter circuit is connected with the chip U1 for filtering, the sending circuit is used for emitting a temperature measuring instruction, and the receiving circuit is connected with the chip U1 for receiving the instruction emitted by the sending circuit. According to the invention, the wireless temperature measuring circuit can control the circuit through a wireless sending module to measure the temperature, displays a temperature measuring result, prevents electronic components of the circuit from being damaged due to overheat of the circuit, and is simple structure and low in cost.
Description
Technical field
The present invention relates to field of illumination systems, particularly relate to a kind of wireless temperature measurement circuit and LED illumination device.
Background technology
Usual lighting apparatus all needs long-time use, long-time use lighting apparatus or when using the larger lighting apparatus of power, will improve the requirement of lighting apparatus internal circuit, if lighting apparatus internal circuit does not have temp sensing function, when the temperature of lighting apparatus internal circuit is too high, very easily lighting apparatus is caused damage, not only affect the normal use of lighting apparatus, also very easily potential safety hazard occurs.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of wireless temperature measurement circuit and LED illumination device, can measure its temperature, and show temperature-measuring results by wireless sending module control circuit.
The temperature control circuit that the embodiment of the present invention provides, comprising: chip U1, crystal oscillating circuit, temperature-sensitive circuit, reset circuit, display circuit, filter circuit and transtation mission circuit, receiving circuit, wherein,
Described crystal oscillating circuit is connected with described chip U1, for providing crystal oscillator for described temperature control circuit, described temperature-sensitive circuit is connected with described chip U1, for obtaining described temperature control circuit Current Temperatures, described reset circuit is connected with described chip U1, reset for described chip U1, described display circuit is connected with described chip U1, for the temperature that the described temperature control circuit showing the acquisition of described temperature-sensitive circuit is current, described filter circuit is connected with described chip U1, for filtering, described transtation mission circuit is used for sending thermometric instruction, described receiving circuit is connected with described chip U1, for receiving the instruction that described transtation mission circuit sends.
As the optional execution mode of one, described crystal oscillating circuit comprises: crystal oscillator Y1, the first electric capacity C1 and the second electric capacity C2, wherein,
1 end of described crystal oscillator Y1 is connected with the 12nd pin of described chip U1, and 2 ends are connected with the 13rd pin of described chip U1;
One end of described first electric capacity C1 is connected with 2 ends of described crystal oscillator Y1, other end ground connection;
One end of described second electric capacity C2 is connected with 1 end of described crystal oscillator Y1, other end ground connection.
As the optional execution mode of one, described temperature-sensitive circuit comprises: chip U3, wherein,
The 1st pin ground connection of described chip U3, crus secunda is connected with the 4th pin of described chip U1, and tripod is connected with supply voltage.
As the optional execution mode of one, described reset circuit comprises: the first resistance R1, the 3rd electric capacity C3, the 4th electric capacity C4 and the first switch S 1, wherein,
One end of described first resistance R1 is connected with one end of described 3rd resistance C3, one end of the 4th resistance C4, one end of the first switch S 1 simultaneously, and the other end of described first resistance R1 is connected with described supply voltage;
One end of described first resistance R1 is connected with the 9th pin of described chip U1 with one end of described 3rd resistance C3, one end of the 4th resistance C4, one end of the first switch S 1 simultaneously simultaneously;
The other end of described 3rd resistance C3 is connected with the described other end of the 4th resistance, the other end of the first switch and ground simultaneously.
As the optional execution mode of one, described display circuit comprises: chip U2, wherein,
1st pin of described chip U2 is connected with the 22nd pin of described chip U1, 2nd pin of described chip U2 is connected with the 23rd pin of described chip U1, 3rd pin of described chip U2 is connected with 24 pin of described chip U1, 4th pin of described chip U2 is connected with the 25th pin of described chip U1, 5th pin of described chip U2 is connected with the 26th pin of described chip U1, 6th pin of described chip U2 is connected with the 27th pin of described chip U1, 7th pin of described chip U2 is connected with the 28th pin of described chip U1, 8th pin of described chip U2 is connected with the 29th pin of described chip U1, the A1 pin of described chip U2 is connected with the 40th pin of described chip U1, the A2 pin of described chip U2 is connected with the 39th pin of described chip U1.
As the optional execution mode of one, described filter circuit comprises: the 5th electric capacity C5, wherein,
One end of described 5th electric capacity C5 is connected with the 11st pin of described chip U1, the 31st pin and ground simultaneously, and the other end of described 5th electric capacity C5 is connected with the 32nd pin of described chip U1.
As the optional execution mode of one, described transtation mission circuit comprises connector and wireless sending module, and the 2nd pin of described connector is connected with wireless sending module respectively to the 9th pin, and described 2nd pin is also connected with described second switch S2.
As the optional execution mode of one, described receiving circuit comprises connector and wireless receiving module, and the 2nd pin of described connector is connected with described chip U1, and the 3rd pin is connected with wireless receiving module respectively to the 9th pin.
As the optional execution mode of one, the 30th pin of described chip U1 is all connected with supply voltage with the 10th pin.
Correspondingly, the embodiment of the present invention also provides a kind of LED illumination device, and described LED illumination device comprises above-mentioned wireless temperature measurement circuit.
The wireless temperature measurement circuit that the embodiment of the present invention provides and LED illumination device, its temperature can be measured by the wireless sending module control circuit of transtation mission circuit, and show temperature-measuring results, prevent the electronic devices and components of the damaged circuit because circuit is overheated, structure is simple, with low cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is embodiment of the present invention wireless temperature measurement electrical block diagram;
Fig. 2 is another embodiment of the present invention wireless temperature measurement electrical block diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, it is embodiment of the present invention wireless temperature measurement electrical block diagram, temperature control circuit of the present invention can prevent from causing damage to electronic devices and components because circuit is overheated, it comprises: chip U1, crystal oscillating circuit 10, temperature-sensitive circuit 20, reset circuit 30, display circuit 40, filter circuit 50 and transtation mission circuit 60, receiving circuit 70, wherein
Crystal oscillating circuit 10 is connected with chip U1, for providing crystal oscillator for described temperature control circuit, temperature-sensitive circuit 20 is connected with chip U1, for obtaining described temperature control circuit Current Temperatures, reset circuit 30 is connected with chip U1, reset for chip U1, display circuit 40 is connected with chip U1, for the temperature that the temperature control circuit showing temperature-sensitive circuit 20 acquisition is current, filter circuit 50 is connected with chip U1, and for filtering, transtation mission circuit 60 is for sending thermometric instruction, receiving circuit 70 is connected with chip U1, for receiving the instruction that transtation mission circuit sends.
Should be appreciated that the preferred ATMEGA16 of chip U1, the preferred 7SEG charactron of chip U2, the preferred DS18B20 temperature sensor of chip U3.
The wireless temperature measurement circuit of the embodiment of the present invention, thermometric instruction can be sent by the wireless sending module of transtation mission circuit, receiving circuit receives measuring circuit temperature after thermometric instruction, and measurement result is shown in display circuit, prevent the electronic devices and components of the damaged circuit because circuit is overheated, structure is simple, with low cost.
Refer to Fig. 2, it is another embodiment of the present invention wireless temperature measurement electrical block diagram, temperature control circuit of the present invention can prevent from causing damage to electronic devices and components because circuit is overheated, it comprises: chip U1, crystal oscillating circuit 10, temperature-sensitive circuit 20, reset circuit 30, display circuit 40, filter circuit 50 and transtation mission circuit 60, receiving circuit 70, wherein
Crystal oscillating circuit 10, for providing crystal oscillator for described temperature control circuit, comprising: crystal oscillator Y1, the first electric capacity C1 and the second electric capacity C2, wherein,
1 end of described crystal oscillator Y1 is connected with the 12nd pin of described chip U1, and 2 ends are connected with the 13rd pin of described chip U1;
One end of described first electric capacity C1 is connected with 2 ends of described crystal oscillator Y1, other end ground connection;
One end of described second electric capacity C2 is connected with 1 end of described crystal oscillator Y1, other end ground connection.
It is understood that, the first electric capacity C1 and the preferred 22pF of the second electric capacity C2, the preferred 16MHZ of crystal oscillator Y1.
Temperature-sensitive circuit 20, for obtaining described temperature control circuit Current Temperatures, comprising: chip U3, wherein,
The 1st pin ground connection of described chip U3, crus secunda is connected with the 4th pin of described chip U1, and tripod is connected with supply voltage.
Should be appreciated that chip U3 is temperature sensor, preferred DS18B20.
Reset circuit 30 resets for described chip U1, comprising: the first resistance R1, the 3rd electric capacity C3, the 4th electric capacity C4 and the first switch S 1, wherein,
One end of described first resistance R1 is connected with one end of described 3rd resistance C3, one end of the 4th resistance C4, one end of the first switch S 1 simultaneously, and the other end of described first resistance R1 is connected with described supply voltage;
One end of described first resistance R1 is connected with the 9th pin of described chip U1 with one end of described 3rd resistance C3, one end of the 4th resistance C4, one end of the first switch S 1 simultaneously simultaneously;
The other end of described 3rd resistance C3 is connected with the described other end of the 4th resistance, the other end of the first switch and ground simultaneously.
Further, the preferred 1K Ω of the first resistance R1, the 3rd electric capacity C3 preferably 10
5pF, the 4th electric capacity C4 preferably 10
7pF.
The current temperature of described temperature control circuit that display circuit 40 obtains for showing described temperature-sensitive circuit 20, comprising: chip U2, wherein,
1st pin of described chip U2 is connected with the 22nd pin of described chip U1, 2nd pin of described chip U2 is connected with the 23rd pin of described chip U1, 3rd pin of described chip U2 is connected with 24 pin of described chip U1, 4th pin of described chip U2 is connected with the 25th pin of described chip U1, 5th pin of described chip U2 is connected with the 26th pin of described chip U1, 6th pin of described chip U2 is connected with the 27th pin of described chip U1, 7th pin of described chip U2 is connected with the 28th pin of described chip U1, 8th pin of described chip U2 is connected with the 29th pin of described chip U1, the A1 pin of described chip U2 is connected with the 40th pin of described chip U1, the A2 pin of described chip U2 is connected with the 39th pin of described chip U1.
Should be appreciated that the preferred 7SEG charactron of described chip U2.
Filter circuit 50 comprises for filtering: the 5th electric capacity C5, wherein,
One end of described 5th electric capacity C5 is connected with the 11st pin of described chip U1, the 31st pin and ground simultaneously, and the other end of described 5th electric capacity C5 is connected with the 32nd pin of described chip U1.
It is understood that, the 3rd electric capacity C3 preferably 10
5pF.
Transtation mission circuit 60 is for sending thermometric instruction, and transtation mission circuit 60 comprises connector and wireless sending module, comprises 10 pins, wherein the 1st pin is VCC, for connecting power supply, in the embodiment of the present invention, VCC can connect the direct voltage of 3.3V, and the 10th pin is GND pin, ground connection.2nd pin of described connector is connected with wireless sending module respectively to the 9th pin, and described 2nd pin is also connected with second switch.
Particularly, wireless sending module can select JF24D-TX, certainly, in other embodiments of the present invention, can select the wireless sending module of other model.
Receiving circuit 70 is connected with chip U1, for receiving the instruction that transtation mission circuit sends, described receiving circuit 70 comprises connector and wireless receiving module, described connector comprises 10 pins, and wherein the 1st pin is VCC, for connecting power supply, in the embodiment of the present invention, VCC can connect the direct voltage of 3.3V, and the 10th pin is GND pin, ground connection.2nd pin of described plug connector is connected with the 1st pin of chip U1, and the 3rd pin is connected with wireless receiving module respectively to the 9th pin.
Particularly, wireless receiving module can select JF24D-RX, certainly, in other embodiments of the present invention, can select the wireless receiving module of other model.
Should be appreciated that the 30th pin of chip U1 is all connected with supply voltage with the 10th pin, the direct voltage of the preferred+5V of supply voltage of the embodiment of the present invention.
The operation principle of embodiment of the present invention wireless temperature measurement circuit is: when wireless temperature measurement circuit needs thermometric, press second switch S2,2nd pin of transtation mission circuit 60 is connect low level, data are sent to receiving circuit 70, receiving circuit 70 receives data, and the 2nd pin exports high level, when the 1st pin of chip U1 detects high level, start thermometric, and shown the temperature of current test by charactron U2; Press second switch S2 again, receiving circuit 70 receives the low level that the 2nd pin exports, and when the 1st pin of chip U1 detects low level, chip U2 quits work, and namely chip U2 closes display, completes thermometric process.
The wireless temperature measurement circuit of the embodiment of the present invention, thermometric instruction can be sent by the wireless sending module of transtation mission circuit, the wireless receiving module of receiving circuit receives measuring circuit temperature after thermometric instruction, and measurement result is shown in display circuit, prevent the electronic devices and components of the damaged circuit because circuit is overheated, structure is simple, with low cost.
The embodiment of the present invention also provides a kind of LED illumination device, and described LED illumination device comprises above-mentioned wireless temperature measurement circuit.
The LED illumination device that the embodiment of the present invention provides, thermometric instruction can be sent by transtation mission circuit, receiving circuit receives measuring circuit temperature after thermometric instruction, and measurement result is shown in display circuit, prevent the electronic devices and components of the damaged circuit because circuit is overheated, structure is simple, with low cost.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. a wireless temperature measurement circuit, is characterized in that, comprising: chip U1, crystal oscillating circuit, temperature-sensitive circuit, reset circuit, display circuit, filter circuit and transtation mission circuit, receiving circuit, wherein,
Described crystal oscillating circuit is connected with described chip U1, for providing crystal oscillator for described temperature control circuit, described temperature-sensitive circuit is connected with described chip U1, for obtaining described temperature control circuit Current Temperatures, described reset circuit is connected with described chip U1, reset for described chip U1, described display circuit is connected with described chip U1, for the temperature that the described temperature control circuit showing the acquisition of described temperature-sensitive circuit is current, described filter circuit is connected with described chip U1, for filtering, described transtation mission circuit is used for sending thermometric instruction, described receiving circuit is connected with described chip U1, for receiving the instruction that described transtation mission circuit sends.
2. circuit as claimed in claim 1, it is characterized in that, described crystal oscillating circuit comprises: crystal oscillator Y1, the first electric capacity C1 and the second electric capacity C2, wherein,
1 end of described crystal oscillator Y1 is connected with the 12nd pin of described chip U1, and 2 ends are connected with the 13rd pin of described chip U1;
One end of described first electric capacity C1 is connected with 2 ends of described crystal oscillator Y1, other end ground connection;
One end of described second electric capacity C2 is connected with 1 end of described crystal oscillator Y1, other end ground connection.
3. circuit as claimed in claim 1, it is characterized in that, described temperature-sensitive circuit comprises: chip U3, wherein,
The 1st pin ground connection of described chip U3, crus secunda is connected with the 4th pin of described chip U1, and tripod is connected with supply voltage.
4. as the circuit that claim 1 is stated, it is characterized in that, described reset circuit comprises: the first resistance R1, the 3rd electric capacity C3, the 4th electric capacity C4 and the first switch S 1, wherein,
One end of described first resistance R1 is connected with one end of described 3rd resistance C3, one end of the 4th resistance C4, one end of the first switch S 1 simultaneously, and the other end of described first resistance R1 is connected with described supply voltage;
One end of described first resistance R1 is connected with the 9th pin of described chip U1 with one end of described 3rd resistance C3, one end of the 4th resistance C4, one end of the first switch S 1 simultaneously simultaneously;
The other end of described 3rd resistance C3 is connected with the described other end of the 4th resistance, the other end of the first switch and ground simultaneously.
5. circuit as claimed in claim 1, it is characterized in that, described display circuit comprises: chip U2, wherein,
1st pin of described chip U2 is connected with the 22nd pin of described chip U1, 2nd pin of described chip U2 is connected with the 23rd pin of described chip U1, 3rd pin of described chip U2 is connected with 24 pin of described chip U1, 4th pin of described chip U2 is connected with the 25th pin of described chip U1, 5th pin of described chip U2 is connected with the 26th pin of described chip U1, 6th pin of described chip U2 is connected with the 27th pin of described chip U1, 7th pin of described chip U2 is connected with the 28th pin of described chip U1, 8th pin of described chip U2 is connected with the 29th pin of described chip U1, the A1 pin of described chip U2 is connected with the 40th pin of described chip U1, the A2 pin of described chip U2 is connected with the 39th pin of described chip U1.
6. circuit as claimed in claim 1, it is characterized in that, described filter circuit comprises: the 5th electric capacity C5, wherein,
One end of described 5th electric capacity C5 is connected with the 11st pin of described chip U1, the 31st pin and ground simultaneously, and the other end of described 5th electric capacity C5 is connected with the 32nd pin of described chip U1.
7. circuit as claimed in claim 1, it is characterized in that, described transtation mission circuit comprises connector and wireless sending module, and the 2nd pin of described connector is connected with described wireless sending module respectively to the 9th pin, and described 2nd pin is also connected with second switch S2.
8. circuit as claimed in claim 1, it is characterized in that, described receiving circuit comprises connector and wireless receiving module, and the 2nd pin of described connector is connected with described chip U1, and the 3rd pin is connected with described wireless receiving module respectively to the 9th pin.
9. the circuit as described in claim 1-8, is characterized in that, the 30th pin of described chip U1 is all connected with supply voltage with the 10th pin.
10. a LED illumination device, is characterized in that, described LED illumination device comprises the wireless temperature measurement circuit described in claim 1-9 any one.
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| CN201310443425.5A CN104519610B (en) | 2013-09-26 | 2013-09-26 | A kind of wireless temperature measurement circuit and LED illumination device |
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| CN201310443425.5A CN104519610B (en) | 2013-09-26 | 2013-09-26 | A kind of wireless temperature measurement circuit and LED illumination device |
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| CN104519610B CN104519610B (en) | 2019-03-26 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6498442B2 (en) * | 2000-11-06 | 2002-12-24 | Denso Corporation | Self-heating type cold-cathode discharge tube control apparatus |
| CN101064398A (en) * | 2007-03-15 | 2007-10-31 | 暨南大学 | Remote control socket system and its wireless remote control method |
| CN101184353A (en) * | 2007-10-24 | 2008-05-21 | 李舒 | Radio remote address programmable two-way communication digital light control system |
| CN101680806A (en) * | 2007-05-04 | 2010-03-24 | 密封空气公司 | Insulated container having a temperature monitoring device |
| CN101795512A (en) * | 2009-11-18 | 2010-08-04 | 海洋王照明科技股份有限公司 | Remote control signal receiving system used for lamps and remote control lighting lamp |
| CN102143213A (en) * | 2011-01-04 | 2011-08-03 | 中山兴瀚科技有限公司 | Intelligent illumination control system based on Internet of things (IOT) architecture |
| CN201964230U (en) * | 2010-12-06 | 2011-09-07 | 金平娣 | Desk lamp with temperature display function |
| CN202012800U (en) * | 2011-04-25 | 2011-10-19 | 仇晴红 | Multi-purpose desk lamp |
| CN103167691A (en) * | 2013-03-04 | 2013-06-19 | 江南大学 | Light emitting diode (LED) driving power supply and dimming system |
-
2013
- 2013-09-26 CN CN201310443425.5A patent/CN104519610B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6498442B2 (en) * | 2000-11-06 | 2002-12-24 | Denso Corporation | Self-heating type cold-cathode discharge tube control apparatus |
| CN101064398A (en) * | 2007-03-15 | 2007-10-31 | 暨南大学 | Remote control socket system and its wireless remote control method |
| CN101680806A (en) * | 2007-05-04 | 2010-03-24 | 密封空气公司 | Insulated container having a temperature monitoring device |
| CN101184353A (en) * | 2007-10-24 | 2008-05-21 | 李舒 | Radio remote address programmable two-way communication digital light control system |
| CN101795512A (en) * | 2009-11-18 | 2010-08-04 | 海洋王照明科技股份有限公司 | Remote control signal receiving system used for lamps and remote control lighting lamp |
| CN201964230U (en) * | 2010-12-06 | 2011-09-07 | 金平娣 | Desk lamp with temperature display function |
| CN102143213A (en) * | 2011-01-04 | 2011-08-03 | 中山兴瀚科技有限公司 | Intelligent illumination control system based on Internet of things (IOT) architecture |
| CN202012800U (en) * | 2011-04-25 | 2011-10-19 | 仇晴红 | Multi-purpose desk lamp |
| CN103167691A (en) * | 2013-03-04 | 2013-06-19 | 江南大学 | Light emitting diode (LED) driving power supply and dimming system |
Non-Patent Citations (1)
| Title |
|---|
| 方挺等: "《基于DS18B20 的无线温度测量电路设计》", 《台州学院学报》 * |
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