CN203027573U - LED (Light Emitting Diode) lawn lamp capable of intelligently changing in color temperature at high accuracy - Google Patents
LED (Light Emitting Diode) lawn lamp capable of intelligently changing in color temperature at high accuracy Download PDFInfo
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- CN203027573U CN203027573U CN 201320012165 CN201320012165U CN203027573U CN 203027573 U CN203027573 U CN 203027573U CN 201320012165 CN201320012165 CN 201320012165 CN 201320012165 U CN201320012165 U CN 201320012165U CN 203027573 U CN203027573 U CN 203027573U
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- lawn lamp
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Abstract
The utility model discloses an LED (Light Emitting Diode) lawn lamp capable of intelligently changing in color temperature at high accuracy. The LED lawn lamp comprises an LED light source, an environmental temperature measuring and amplifying circuit and an environmental temperature detecting and processing circuit, wherein the LED light source comprises a warm color temperature light LED lamp, an intermediate color temperature light LED lamp and a cold color temperature light LED lamp, the environmental temperature measuring and amplifying circuit is connected with the input of the environmental temperature detecting and processing circuit, and the LED light source is connected with the output of the environmental temperature detecting and processing circuit. The LED lawn lamp has the advantages that the lawn lamp is controlled to give out lights suitable for current temperature and color temperature by setting the temperature measuring circuit and the environmental temperature detecting circuit according to outside temperature, the compatibility between the lawn lamp and environments is improved, and the illumination effect is improved.
Description
Technical field
The utility model relates to a kind of LED lighting, and particularly a kind of high-precision intelligent changes the LED Lawn lamp of colour temperature.
Background technology
The design of Lawn lamp is mainly safe and beautiful as urban green space landscape increases take external form and soft light, and generally have easy for installation, the ornamental characteristics such as strong, can be used for park, garden villa, square greening, etc. the decorative lighting of greenbelt in place.The light emission color temperature of Lawn lamp of the prior art is single, and the light that sends same colour temperature under different thermal climates can seem lofty, inharmonious.
The utility model content
The purpose of this utility model is in order to overcome the problems referred to above, to provide a kind of high-precision intelligent to change the LED Lawn lamp of colour temperature.
For achieving the above object, the method that the utility model adopts is: a kind of high-precision intelligent changes the LED Lawn lamp of colour temperature, it is characterized in that: comprise LED light source, ambient temperature measurement amplifying circuit and ambient temperature Check processing circuit, described LED light source comprises warm colour temperature light LED lamp, middle colour temperature light LED lamp and cool colour temperature light LED lamp, described ambient temperature measurement amplifying circuit JA(junction ambient) temperature detection treatment circuit input, the output of LED light source JA(junction ambient) temperature detection treatment circuit.
As a kind of improvement of the present utility model, described ambient temperature measurement amplifying circuit is provided with 3.
As a kind of improvement of the present utility model, described temperature survey amplifying circuit comprises a triode and an operational amplifier.
As a kind of improvement of the present utility model, described ambient temperature Check processing circuit comprises analog switch, V/F transducer, frequency divider, single-chip microcomputer and storage chip, described analog switch JA(junction ambient) temperature survey amplifying circuit, described single-chip microcomputer connect LED light source output.
The beneficial effects of the utility model are:
The utility model is by set temperature measuring circuit and ambient temperature detection circuit, can control Lawn lamp according to the temperature in the temperature external world and send the light that is fit to the Current Temperatures colour temperature, increased the harmony with environment, improved illuminating effect.
Description of drawings
Fig. 1 is the circuit diagram of ambient temperature measurement amplifying circuit of the present utility model;
Fig. 2 is the circuit diagram of environment measuring treatment circuit of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further;
Change the LED Lawn lamp of colour temperature to a kind of high-precision intelligent shown in Figure 2 as Fig. 1, comprise LED light source, ambient temperature measurement amplifying circuit and ambient temperature Check processing circuit, described LED light source comprises warm colour temperature light LED lamp, middle colour temperature light LED lamp and cool colour temperature light LED lamp, described ambient temperature measurement amplifying circuit JA(junction ambient) temperature detection treatment circuit input, the output of LED light source JA(junction ambient) temperature detection treatment circuit.
ambient temperature measurement amplifying circuit as described in Figure 1 comprises triode Q1 and operational amplifier LM324, use Q1(3DG6) as temperature sensor, its base stage and collector electrode short circuit are emitter positively biased, the base stage of triode Q1 connects power supply through resistance R 1, the base stage of described triode Q1 also is connected to the positive input of operational amplifier LM324 through resistance R 4, the collector electrode of described triode Q1 is connected to power supply through resistance R 1, be connected to the positive input of operational amplifier LM324 through resistance R 4, the emitter of described triode Q1 is connected to the reverse input end of operational amplifier LM324 through resistance R 2, the reverse input end of operational amplifier LM324 is connected to the output of operational amplifier LM324 through resistance R 3.Power supply passes through R1(100K) to triode Q1(3DG6) the approximately collector current of 45mA is provided.
Described ambient temperature measurement amplifying circuit is provided with 3, and 3 ambient temperature measurement amplifying circuits are distinguished output level U0, U1, U2, and level U0, U1, U2 are connected to the environment measuring treatment circuit.By being set, 3 ambient temperature measurement amplifying circuits outside temperature can be detected more accurately.
Described environment measuring treatment circuit comprises analog switch 4051, V/F transducer LM331, chip 74LS74, single chip computer AT 89C2051 and chip AT24C02.Level U0, U1, U2 are connected to X0, X1, the X2 pin of analog switch 4051, and 4051 X7 pin is the auto-compensation input, and LM324 is connected into follow-up amplifier, and it is input as the VREF voltage of the 2 pin outputs of LM331.LM331 is the V/F transducer, is connected to the 6 pin P3.2 ends of single chip computer AT 89C2051 after its output process chip 74LS74 frequency division, is detected pulse duration and is drawn the corresponding temperature value by computing by single-chip microcomputer.
Chip AT24C02 is serial i 2C bus EEPROM, 10 ℃ of two reference temperature values and 20 ℃ and the corresponding pulse duration of LM331 reference voltage V REF when being used for depositing adjustment.Chip AT24C02 is transported to the signal that single-chip microcomputer carries into and the temperature value signal that single-chip microcomputer calculates with the signal of storage and compares output, and the pin of the P1.2 of single-chip microcomputer, P1.4, P1.6 connects respectively the LED lamp of warm colour temperature LED lamp D1, middle colour temperature LED lamp D2, cool colour temperature LED lamp D3 and exports.
When temperature value less than or equal to 10 ℃; Greater than 10 ℃ less than 20 ℃; During greater than 20 ℃, Single-chip Controlling garden lamp, Lawn lamp send respectively the illumination of warm colour temperature, middle colour temperature, cool colour temperature.
The utility model is by set temperature measuring circuit and ambient temperature detection circuit, can control Lawn lamp according to the temperature in the temperature external world and send the light that is fit to the Current Temperatures colour temperature, improved illuminating effect.
The above; it is only preferred embodiment of the present utility model; be not to be the utility model to be done the restriction of any other form, and according to any modification or equivalent variations that technical spirit of the present utility model is done, still belong to the utility model scope required for protection.
Claims (4)
1. a high-precision intelligent changes the LED Lawn lamp of colour temperature, it is characterized in that: comprise LED light source, ambient temperature measurement amplifying circuit and ambient temperature Check processing circuit, described LED light source comprises warm colour temperature light LED lamp, middle colour temperature light LED lamp and cool colour temperature light LED lamp, described ambient temperature measurement amplifying circuit JA(junction ambient) temperature detection treatment circuit input, the output of LED light source JA(junction ambient) temperature detection treatment circuit.
2. a kind of high-precision intelligent according to claim 1 changes the LED Lawn lamp of colour temperature, and it is characterized in that: described ambient temperature measurement amplifying circuit is provided with 3.
3. a kind of high-precision intelligent according to claim 1 and 2 changes the LED Lawn lamp of colour temperature, and it is characterized in that: described temperature survey amplifying circuit comprises a triode and an operational amplifier.
4. a kind of high-precision intelligent according to claim 1 changes the LED Lawn lamp of colour temperature, it is characterized in that: described ambient temperature Check processing circuit comprises analog switch, V/F transducer, frequency divider, single-chip microcomputer and storage chip, described analog switch JA(junction ambient) temperature survey amplifying circuit, described single-chip microcomputer connect LED light source output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012165 CN203027573U (en) | 2013-01-10 | 2013-01-10 | LED (Light Emitting Diode) lawn lamp capable of intelligently changing in color temperature at high accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012165 CN203027573U (en) | 2013-01-10 | 2013-01-10 | LED (Light Emitting Diode) lawn lamp capable of intelligently changing in color temperature at high accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203027573U true CN203027573U (en) | 2013-06-26 |
Family
ID=48651511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320012165 Expired - Fee Related CN203027573U (en) | 2013-01-10 | 2013-01-10 | LED (Light Emitting Diode) lawn lamp capable of intelligently changing in color temperature at high accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203027573U (en) |
-
2013
- 2013-01-10 CN CN 201320012165 patent/CN203027573U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20170110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |