CN104519610B - A kind of wireless temperature measurement circuit and LED illumination device - Google Patents
A kind of wireless temperature measurement circuit and LED illumination device Download PDFInfo
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- CN104519610B CN104519610B CN201310443425.5A CN201310443425A CN104519610B CN 104519610 B CN104519610 B CN 104519610B CN 201310443425 A CN201310443425 A CN 201310443425A CN 104519610 B CN104519610 B CN 104519610B
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Abstract
The embodiment of the invention discloses a kind of wireless temperature measurement circuit and LED illumination devices, the circuit includes: chip U1, crystal oscillating circuit, temperature-sensitive circuit, reset circuit, display circuit, filter circuit and transmitting line, receive circuit, crystal oscillating circuit is connected with chip U1, for providing crystal oscillator for temperature control circuit, temperature-sensitive circuit is connected with chip U1, for obtaining temperature control circuit Current Temperatures, reset circuit is connected with chip U1, it is resetted for chip U1, display circuit is connected with chip U1, for showing the current temperature of the temperature control circuit that temperature-sensitive circuit obtains, filter circuit is connected with chip U1, for filtering, transmitting line is for issuing thermometric instruction, circuit is received to be connected with chip U1, for receiving the instruction of transmitting line sending.Wireless temperature measurement circuit of the present invention can measure its temperature by wireless sending module control circuit, and show temperature-measuring results, prevent the electronic component of damaged circuit due to circuit overheats, structure is simple, low in cost.
Description
Technical field
The present invention relates to field of illumination systems more particularly to a kind of wireless temperature measurement circuit and LED illumination devices.
Background technique
Usual lighting apparatus is required to use for a long time, uses lighting apparatus for a long time or uses the biggish illumination of power
When equipment, the requirement to lighting apparatus internal circuit will be improved, if lighting apparatus internal circuit does not have temp sensing function, work as photograph
Bright equipment internal circuit when the temperature is excessively high, easily damages lighting apparatus, not only influences the normal use of lighting apparatus,
Also security risk easily occurs.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that a kind of wireless temperature measurement circuit and LED illumination device are provided,
Its temperature can be measured by wireless sending module control circuit, and shows temperature-measuring results.
Temperature control circuit provided in an embodiment of the present invention, comprising: chip U1, crystal oscillating circuit, temperature-sensitive circuit, reset circuit, show
Show circuit, filter circuit and transmitting line, receive circuit, wherein
The crystal oscillating circuit is connected with the chip U1, for providing crystal oscillator, the temperature-sensitive circuit and institute for temperature control circuit
It states chip U1 to be connected, for obtaining the temperature control circuit Current Temperatures, the reset circuit is connected with the chip U1, is used for institute
Chip U1 reset is stated, the display circuit is connected with the chip U1, the temperature control obtained for showing the temperature-sensitive circuit
The current temperature of circuit, the filter circuit is connected with the chip U1, and for filtering, the transmitting line is for issuing thermometric
Instruction, the reception circuit are connected with the chip U1, the instruction issued for receiving the transmitting line.
As an alternative embodiment, the crystal oscillating circuit include: crystal oscillator Y1, first capacitor C1 and
Second capacitor C2, wherein
1 end of the crystal oscillator Y1 is connected with the 12nd foot of the chip U1, and 2 ends are connected with the 13rd foot of the chip U1；
One end of the first capacitor C1 is connected with 2 ends of the crystal oscillator Y1, other end ground connection；
One end of the second capacitor C2 is connected with 1 end of the crystal oscillator Y1, other end ground connection.
As an alternative embodiment, the temperature-sensitive circuit includes: chip U3, wherein
The 1st foot of the chip U3 is grounded, and crus secunda is connected with the 4th foot of the chip U1, third foot and supply voltage
It is connected.
As an alternative embodiment, the reset circuit includes: first resistor R1, third capacitor C3, the 4th electricity
Hold C4 and first switch S1, wherein
One end of the first resistor R1 simultaneously with one end of the third capacitor C3, one end of the 4th resistance C4, first
One end of switch S1 is connected, and the other end of the first resistor R1 is connected with supply voltage；
One end of the first resistor R1 simultaneously with one end of the third capacitor C3, one end of the 4th resistance C4, first
One end of switch S1 is connected with the 9th foot of the chip U1 simultaneously；
The other end of the third capacitor C3 other end and ground with the other end of the 4th resistance, first switch simultaneously
It is connected.
As an alternative embodiment, the display circuit includes: chip U2, wherein
The 1st foot of the chip U2 is connected with the 22nd foot of the chip U1, the 2nd foot and the chip of the chip U2
The 23rd foot of U1 is connected, and the 3rd foot of the chip U2 is connected with 24 feet of the chip U1, the 4th foot of the chip U2 and institute
The 25th foot for stating chip U1 is connected, and the 5th foot of the chip U2 is connected with the 26th foot of the chip U1, and the of the chip U2
6 feet are connected with the 27th foot of the chip U1, and the 7th foot of the chip U2 is connected with the 28th foot of the chip U1, the core
The 8th foot of piece U2 is connected with the 29th foot of the chip U1, and the A1 foot of the chip U2 is connected with the 40th foot of the chip U1,
The A2 foot of the chip U2 is connected with the 39th foot of the chip U1.
As an alternative embodiment, the filter circuit includes: the 5th capacitor C5, wherein
One end of the 5th capacitor C5 is connected with the 11st foot, the 31st foot and the ground of the chip U1 simultaneously, and the described 5th
The other end of capacitor C5 is connected with the 32nd foot of the chip U1.
As an alternative embodiment, the transmitting line includes connector and wireless sending module, it is described to patch
The 2nd foot to the 9th foot of part is connected with wireless sending module respectively, and the 2nd foot is also connected with the second switch S2.
As an alternative embodiment, the reception circuit includes connector and wireless receiving module, it is described to patch
2nd foot of part is connected with the chip U1, and the 3rd foot to the 9th foot is connected with wireless receiving module respectively.
As an alternative embodiment, the 30th foot of the chip U1 is connected with supply voltage with the 10th foot.
Correspondingly, the embodiment of the present invention also provides a kind of LED illumination device, and the LED illumination device includes above-mentioned wireless
Temperature measurement circuit.
Wireless temperature measurement circuit provided in an embodiment of the present invention and LED illumination device can pass through the wireless hair of transmitting line
It send module control circuit to measure its temperature, and shows temperature-measuring results, prevent the electronic component of damaged circuit due to circuit overheats,
Structure is simple, low in cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is wireless temperature measurement electrical block diagram of the embodiment of the present invention；
Fig. 2 is another embodiment of the present invention wireless temperature measurement electrical block diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Referring to Figure 1, be wireless temperature measurement electrical block diagram of the embodiment of the present invention, temperature control circuit of the present invention can prevent because
Circuit overheat electronic component is damaged comprising: chip U1, crystal oscillating circuit 10, temperature-sensitive circuit 20, reset circuit 30,
Display circuit 40, filter circuit 50 and transmitting line 60 receive circuit 70, wherein
Crystal oscillating circuit 10 is connected with chip U1, for providing crystal oscillator, temperature-sensitive circuit 20 and chip U1 for the temperature control circuit
It is connected, for obtaining the temperature control circuit Current Temperatures, reset circuit 30 is connected with chip U1, resets for chip U1, display
Circuit 40 is connected with chip U1, for showing the current temperature of the temperature control circuit that temperature-sensitive circuit 20 obtains, filter circuit 50 and core
Piece U1 is connected, and for filtering, transmitting line 60 receives circuit 70 and be connected with chip U1, for receiving for issuing thermometric instruction
The instruction that transmitting line issues.
It should be appreciated that the preferred ATMEGA16 of chip U1, the preferred 7SEG charactron of chip U2, the preferred DS18B20 temperature of chip U3
Spend sensor.
The wireless temperature measurement circuit of the embodiment of the present invention can issue thermometric by the wireless sending module of transmitting line and refer to
It enables, receives circuit and receive measuring circuit temperature after thermometric instruction, and measurement result is shown in display circuit, prevent
The electronic component of damaged circuit due to circuit overheat, structure is simple, low in cost.
Fig. 2 is referred to, is another embodiment of the present invention wireless temperature measurement electrical block diagram, temperature control circuit of the present invention can be prevented
Only because circuit overheat damages electronic component comprising: chip U1, crystal oscillating circuit 10, temperature-sensitive circuit 20, reset circuit
30, display circuit 40, filter circuit 50 and transmitting line 60, reception circuit 70, wherein
Crystal oscillating circuit 10 is used to provide crystal oscillator for the temperature control circuit, comprising: crystal oscillator Y1, first capacitor C1 and the second capacitor
C2, wherein
1 end of the crystal oscillator Y1 is connected with the 12nd foot of the chip U1, and 2 ends are connected with the 13rd foot of the chip U1；
One end of the first capacitor C1 is connected with 2 ends of the crystal oscillator Y1, other end ground connection；
One end of the second capacitor C2 is connected with 1 end of the crystal oscillator Y1, other end ground connection.
It is understood that the first capacitor C1 and preferred 16MHZ of the second capacitor C2 preferred 22pF, crystal oscillator Y1.
Temperature-sensitive circuit 20 is for obtaining the temperature control circuit Current Temperatures, comprising: chip U3, wherein
The 1st foot of the chip U3 is grounded, and crus secunda is connected with the 4th foot of the chip U1, third foot and supply voltage
It is connected.
It should be appreciated that chip U3 is temperature sensor, preferably DS18B20.
Reset circuit 30 for the chip U1 reset, comprising: first resistor R1, third capacitor C3, the 4th capacitor C4 and
First switch S1, wherein
One end of the first resistor R1 simultaneously with one end of the third capacitor C3, one end of the 4th resistance C4, first
One end of switch S1 is connected, and the other end of the first resistor R1 is connected with the supply voltage；
One end of the first resistor R1 simultaneously with one end of the third capacitor C3, one end of the 4th resistance C4, first
One end of switch S1 is connected with the 9th foot of the chip U1 simultaneously；
The other end of the third capacitor C3 other end and ground with the other end of the 4th resistance, first switch simultaneously
It is connected.
Further, the preferred 1K Ω of first resistor R1, third capacitor C3 preferably 105PF, the 4th capacitor C4 preferably 107pF。
Display circuit 40 is used to show the temperature that the temperature control circuit that the temperature-sensitive circuit 20 obtains is current, comprising: core
Piece U2, wherein
The 1st foot of the chip U2 is connected with the 22nd foot of the chip U1, the 2nd foot and the chip of the chip U2
The 23rd foot of U1 is connected, and the 3rd foot of the chip U2 is connected with 24 feet of the chip U1, the 4th foot of the chip U2 and institute
The 25th foot for stating chip U1 is connected, and the 5th foot of the chip U2 is connected with the 26th foot of the chip U1, and the of the chip U2
6 feet are connected with the 27th foot of the chip U1, and the 7th foot of the chip U2 is connected with the 28th foot of the chip U1, the core
The 8th foot of piece U2 is connected with the 29th foot of the chip U1, and the A1 foot of the chip U2 is connected with the 40th foot of the chip U1,
The A2 foot of the chip U2 is connected with the 39th foot of the chip U1.
It should be appreciated that the preferred 7SEG charactron of chip U2.
Filter circuit 50 includes: the 5th capacitor C5 for filtering, wherein
One end of the 5th capacitor C5 is connected with the 11st foot, the 31st foot and the ground of the chip U1 simultaneously, and the described 5th
The other end of capacitor C5 is connected with the 32nd foot of the chip U1.
It is understood that the preferred 105pF of third capacitor C3.
Transmitting line 60 includes connector and wireless sending module, including 10 for issuing thermometric instruction, transmitting line 60
A pin, wherein the 1st foot is VCC, for connecting power supply, in the embodiment of the present invention, VCC can connect the DC voltage of 3.3V,
10th foot is GND foot, ground connection.The 2nd foot to the 9th foot of the connector is connected with wireless sending module respectively, and the 2nd foot is also
It is connected with second switch.
Specifically, wireless sending module can choose JF24D-TX, certainly, in other embodiments of the present invention, can
To select the wireless sending module of other models.
It receives circuit 70 to be connected with chip U1, for receiving the instruction of transmitting line sending, the reception circuit 70 includes
Connector and wireless receiving module, the connector includes 10 pins, wherein the 1st foot is VCC, for connecting power supply, this hair
In bright embodiment, VCC can connect the DC voltage of 3.3V, and the 10th foot is GND foot, ground connection.The 2nd foot and core of the plug connector
The 1st foot of piece U1 is connected, and the 3rd foot to the 9th foot is connected with wireless receiving module respectively.
Specifically, wireless receiving module can choose JF24D-RX, certainly, in other embodiments of the present invention, can
To select the wireless receiving module of other models.
It should be appreciated that the 30th foot of chip U1 is connected with supply voltage with the 10th foot, the power supply electricity of the embodiment of the present invention
Press the DC voltage of preferably+5V.
The working principle of wireless temperature measurement circuit of the embodiment of the present invention are as follows: when wireless temperature measurement circuit needs thermometric, press
2nd foot of transmitting line 60 is connect low level by two switch S2, is sent data to circuit 70 is received, is received circuit 70 and receive data,
2nd foot exports high level, when the 1st foot of chip U1 detects high level, starts thermometric, and show currently by charactron U2
The temperature of measurement；Second switch S2 is pressed again, receives the low level that circuit 70 receives the output of the 2nd foot, when the 1st foot of chip U1 is examined
When measuring low level, chip U2 stops working, i.e. chip U2 closes display, completes thermometric process.
The wireless temperature measurement circuit of the embodiment of the present invention can issue thermometric by the wireless sending module of transmitting line and refer to
It enables, the wireless receiving module for receiving circuit receives measuring circuit temperature after thermometric instruction, and by measurement result in display circuit
In show, prevent because circuit overheat due to the electronic component of damaged circuit, structure is simple, low in cost.
The embodiment of the present invention also provides a kind of LED illumination device, and the LED illumination device includes above-mentioned wireless temperature measurement electricity
Road.
LED illumination device provided in an embodiment of the present invention can be issued thermometric instruction by transmitting line, receive circuit and connect
Measuring circuit temperature after thermometric instructs is received, and measurement result is shown in display circuit, is prevented due to circuit overheats
The electronic component of damaged circuit, structure is simple, low in cost.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (10)
1. a kind of wireless temperature measurement circuit characterized by comprising chip U1, crystal oscillating circuit, temperature-sensitive circuit, reset circuit, display
Circuit, filter circuit and transmitting line receive circuit, wherein
The crystal oscillating circuit is connected with the chip U1, for providing crystal oscillator, the temperature-sensitive circuit and the core for temperature control circuit
Piece U1 is connected, and the temperature-sensitive circuit includes chip U3, and the chip U3 includes temperature sensor, for obtaining the temperature control circuit
Current Temperatures, the reset circuit are connected with the chip U1, reset for the chip U1, the display circuit and the core
Piece U1 is connected, and the display circuit includes chip U2, and the chip U2 is charactron, for showing what the temperature-sensitive circuit obtained
The current temperature of the temperature control circuit, the filter circuit is connected with the chip U1, and for filtering, the transmitting line is used for
Thermometric instruction is issued by the wireless sending module of the transmitting line, the transmitting line includes connector and wireless transmission mould
Block, the connector are connected with the wireless sending module, and the reception circuit is connected with the chip U1, described for receiving
The thermometric instruction that transmitting line issues, the reception circuit includes connector and wireless receiving module；
The transmitting line sends the thermometric instruction to the reception circuit, when the chip U1 detects high level, opens
Beginning measuring circuit temperature, and the circuit temperature currently measured is shown by the chip U2；When the chip U1 detects low electricity
Usually, the chip U2 stops working.
2. circuit as described in claim 1, which is characterized in that the crystal oscillating circuit includes: crystal oscillator Y1, first capacitor C1 and
Two capacitor C2, wherein
1 end of the crystal oscillator Y1 is connected with the 12nd foot of the chip U1, and 2 ends are connected with the 13rd foot of the chip U1；
One end of the first capacitor C1 is connected with 2 ends of the crystal oscillator Y1, other end ground connection；
One end of the second capacitor C2 is connected with 1 end of the crystal oscillator Y1, other end ground connection.
3. circuit as described in claim 1, which is characterized in that the temperature-sensitive circuit includes: chip U3, wherein
The 1st foot of the chip U3 is grounded, and crus secunda is connected with the 4th foot of the chip U1, and third foot is connected with supply voltage.
4. circuit as described in claim 1, which is characterized in that the reset circuit includes: first resistor R1, third capacitor
C3, the 4th capacitor C4 and first switch S1, wherein
One end of first resistor R1 one end, one end of the 4th resistance C4, first switch with the third capacitor C3 simultaneously
One end of S1 is connected, and the other end of the first resistor R1 is connected with supply voltage；
One end of first resistor R1 one end, one end of the 4th resistance C4, first switch with the third capacitor C3 simultaneously
One end of S1 is connected with the 9th foot of the chip U1 simultaneously；
The other end of the third capacitor C3 other end and ground phase with the other end of the 4th resistance, first switch simultaneously
Even.
5. circuit as described in claim 1, which is characterized in that the display circuit includes: chip U2, wherein
The 1st foot of the chip U2 is connected with the 22nd foot of the chip U1, and the 2nd foot of the chip U2 is with the chip U1's
23rd foot is connected, and the 3rd foot of the chip U2 is connected with 24 feet of the chip U1, the 4th foot and the core of the chip U2
The 25th foot of piece U1 is connected, and the 5th foot of the chip U2 is connected with the 26th foot of the chip U1, the 6th foot of the chip U2
It is connected with the 27th foot of the chip U1, the 7th foot of the chip U2 is connected with the 28th foot of the chip U1, the chip U2
The 8th foot be connected with the 29th foot of the chip U1, the A1 foot of the chip U2 is connected with the 40th foot of the chip U1, described
The A2 foot of chip U2 is connected with the 39th foot of the chip U1.
6. circuit as described in claim 1, which is characterized in that the filter circuit includes: the 5th capacitor C5, wherein
One end of the 5th capacitor C5 is connected with the 11st foot, the 31st foot and the ground of the chip U1 simultaneously, the 5th capacitor
The other end of C5 is connected with the 32nd foot of the chip U1.
7. circuit as described in claim 1, which is characterized in that the transmitting line includes connector and wireless sending module,
The 2nd foot to the 9th foot of the connector is connected with the wireless sending module respectively, the 2nd foot also with second switch S2 phase
Even.
8. circuit as described in claim 1, which is characterized in that the reception circuit includes connector and wireless receiving module,
2nd foot of the connector is connected with the chip U1, and the 3rd foot to the 9th foot is connected with the wireless receiving module respectively.
9. such as the described in any item circuits of claim 1-8, which is characterized in that the 30th foot and the 10th foot of the chip U1 with
Supply voltage is connected.
10. a kind of LED illumination device, which is characterized in that the LED illumination device includes described in claim 1-9 any one
Wireless temperature measurement circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310443425.5A CN104519610B (en) | 2013-09-26 | 2013-09-26 | A kind of wireless temperature measurement circuit and LED illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN104519610A CN104519610A (en) | 2015-04-15 |
| CN104519610B true CN104519610B (en) | 2019-03-26 |
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| CN201310443425.5A Active CN104519610B (en) | 2013-09-26 | 2013-09-26 | A kind of wireless temperature measurement circuit and LED illumination device |
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