CN201541507U - Plant acoustic frequency generator - Google Patents
Plant acoustic frequency generator Download PDFInfo
- Publication number
- CN201541507U CN201541507U CN2009200266175U CN200920026617U CN201541507U CN 201541507 U CN201541507 U CN 201541507U CN 2009200266175 U CN2009200266175 U CN 2009200266175U CN 200920026617 U CN200920026617 U CN 200920026617U CN 201541507 U CN201541507 U CN 201541507U
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- acoustic frequency
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Abstract
The utility model provides a plant acoustic frequency generator. The utility model is characterized in that the plant acoustic frequency generator consists of a microcomputer consisting of peripheral components, such as a singlechip master chip, a keying circuit, an LED display and the like, an acoustic frequency generating unit, a digital power amplifying circuit, a loudspeaker, a power circuit and a box body; a frequency range selecting port of the acoustic frequency generating unit is connected to an I/O port of a singlechip; an output of the acoustic frequency generating unit is connected to the digital power amplifying circuit; an output of the power amplifying circuit is connected to the loudspeaker; and the working time of the plant acoustic frequency and the frequency range selection are programmed and controlled by the singlechip. The microcomputer organically combines softwares with hardwares and can flexibly combine various acoustic signals and various working modes, thus, the plant acoustic frequency generator has wider application and has the advantages of stable working, small volume, low electricity consumption, convenient operation, convenient maintenance and really practical value.
Description
Technical field
The utility model is a kind of acoustic frequency generator that promotes that crop growth is used, and belongs to agricultural electronic technology field, is a kind of audio plant generator specifically.
Background technology
Twentieth century chemistry agricultural has improved the output of crops greatly, for conclusive effect has been played in agricultural development, but, cause the soil fertility decline along with the excessive use of chemical fertilizer and agricultural chemicals, adverse consequencess such as crops quality decline and environmental pollution have had a strong impact on agriculture sustainable development.Therefore, current agricultural is in by chemistry agriculture to the period of physics agricultural transition, and the physics agricultural also is one of main path that realizes the ecological agriculture.Audio plant control technology and product then are importances of physics agricultural, and research and development audio plant control technology is significant to China's Agricultural Development.
The audio plant control technology belongs to the sound wave physics agricultural engineering technology field of physics agricultural high-tech scope, it is according to biophysics, biological motion physiology, the design of acoustic wave biological effect theories such as applied acoustics, from audible frequency, growing plants is applied sound signal in conjunction with plant, make vegetable resonance, strengthen photosynthesis and absorption, reduce the biologic resistance of plant, in the hope of reaching volume increase, high-quality, disease-resistant purpose.
The present great majority of audio plant generation equipment all rest on experimental stage, Chinese patent " audio plant treating technology and equipment " (application number: be made up of separate electronic components and parts and common time-base integrated circuit by the audio plant generator of 01131188.6) being discussed, particularly multi-point multi-layer multiband mechanical type selector switch has been adopted in the selection of audio plant frequency range, audio-frequency power amplifier adopts the simulation integrated amplifier, installs the bigger radiator of volume additional and forms.Because the discreteness of separate electronic components and parts makes its error bigger, volume is big, the power consumption height; Special multi-point multi-layer frequency range switch is done Frequency Band Selection usefulness, and its mechanical contact works long hours in the large natural environment of farmland, and humidity is bigger, corrosion is caused in the contact, generated resistance, caused the occurrence frequency skew of audio plant generator, made its audio plant generator job insecurity; The simulation integrated amplifier is when high-power output, and distortion is big, power consumption is big, the heat of generation is also big, must install radiator additional, causes that machine volume is big, power consumption is many, and separating electronic components has brought very big inconvenience to maintenance and debugging.
Summary of the invention
The problem that the utility model exists at prior art, a kind of audio plant generator is provided, makes it in the large natural environment of the protean farmland of temp. and humidity, can both export audio frequency, steady operation accurately, and volume is little, little power consumption, distortion are little, is convenient to Operation and maintenance.
The purpose of this utility model is achieved through the following technical solutions:
A kind of audio plant generator, comprise: audio frequency generating unit, audible region selected cell, power amplification circuit, display, loudspeaker, operated key, power circuit, casing, it is characterized in that: by a single-chip microcomputer of forming by single-chip microcomputer master chip and keying circuit and LED display, the Frequency Band Selection port of audio frequency generating unit is connected to the I/O mouth of single-chip microcomputer, the output of audio frequency generating unit is connected to power amplification circuit, the output of power amplification circuit is connected to loudspeaker, and the working time and the Frequency Band Selection of audio plant are controlled by mcu programming.
To improvement of the technical scheme: described power amplification circuit is the digital power amplifier circuit.
To further improvement in the technical proposal: described single-chip microcomputer is AT89C2051, and the audio frequency generating unit is the multi-segment Programmable speech chip.
To further improvement in the technical proposal: the I/O mouth of each single-chip microcomputer of described connection audio frequency generating unit Frequency Band Selection port also is connected with the LED display lamp.
To further improvement in the technical proposal: described digital power amplifier model is TDA8932.
To further improvement in the technical proposal: described multi-segment Programmable speech chip model is AP89042.
Advantage of the present utility model and good effect are:
Adopt mcu programming to select the frequency range of audio plant, and the working time of control acoustic frequency generator, software and hardware is organically combined, can flexible combination go out multiple sound signal and multiple mode of operation, adopt digital power amplifier to overcome disadvantages such as the distortion of simulation integrated amplifier is big, power consumption is big, calorific value is big, make audio plant generator applicability wider, working stability, volume are little, little power consumption, distortion are little, be convenient to operation, be convenient to maintenance, have real practical value.
Description of drawings
Fig. 1 is the electric theory diagram of the utility model audio plant generator;
Fig. 2 is the single-chip microcomputer Frequency Band Selection port circuit figure of the utility model audio plant generator;
Fig. 3 is the digital power amplifier circuit diagram of the utility model audio plant generator;
Fig. 4 is the digital power amplifier power circuit diagram of the utility model audio plant generator.
Embodiment
Referring to Fig. 1, a kind of audio plant generator comprises: audio frequency generating unit, audible region selected cell, power amplification circuit, display, loudspeaker, operated key, power circuit.By a single-chip microcomputer of forming by single-chip microcomputer master chip and keying circuit and light-emitting diode display, the Frequency Band Selection port of audio frequency generating unit is connected to the I/O mouth of single-chip microcomputer, the output of audio frequency generating unit is connected to power amplification circuit, the output of power amplification circuit is connected to loudspeaker, the I/O mouth of each single-chip microcomputer of described connection audio frequency generating unit Frequency Band Selection port also is connected with the LED display lamp, and the working time and the Frequency Band Selection of audio plant are controlled by mcu programming.
In Fig. 2, embodiment shown in Figure 3, single-chip microcomputer adopts AT89C2051; The audio frequency generating unit adopts speech chip AP89042 able to programme; Power amplification circuit adopts digital power amplifier TDA8932.
Single chip computer AT 89C2051 contains 15 in 2 of Flash memories, 128RAM (B), 2 timers, 1 serial port, I/O mouth, 6 interrupt sources, maximum speed 24MHz, operating voltage 2.7-6V, and analog comparator is arranged, the idle and power-down mode of low-power consumption, directly LED drives output.Keying circuit is used for setting audio plant generator operating frequency and volume, and the effect of light-emitting diode display is: when keying had been selected certain frequency range, the LED lamp of this frequency range was just bright.
Utilize the timer function in the single chip computer AT 89C2051, can set the working time of audio plant generator according to user's demand; as some start every day; the audio plant generator work of start back how long, and some shutdown etc. can be set many group working times as required.
Digital power amplifier TDA8932 is current advanced digital power amplifier; it has the power output of 45W * 2; high-power low distortion, low noise, low-power consumption; without radiator; idle function and kinds of protect functions such as overvoltage monitoring and junction temperature monitoring are arranged, it can be guaranteed audio plant generator working stability, reliable as the audio power amplification output circuit.
Speech chip AP89042 able to programme has 32 section audios, and 3 output LED, STOP, BUSY can select, and supports button or cpu mode to trigger, and audio frequency output can external amplification output or direct loudspeaker mode.In the embodiment shown in Figure 2, AP89042 is operated in the CPU triggering mode, the selection of frequency range is by single chip computer AT 89C2051 programming, realizes through the S1-S8 port of I/O mouth P1 port gating AP89042 that audio frequency output is connected to digital power amplifier TDA8932 by amplifying delivery outlet (COUT) through digital potentiometer X9315.
In actual use, at first the various sound signals that different plant was suitable for are burnt among the speech chip AP89042 able to programme, as: the suitable audio frequency of radish, spinach, cucumber, muskmelon, watermelon is 50-100HZ; The suitable audio frequency of potato, Chinese cabbage, pea, Kidney bean, soybean is 150-300HZ; The suitable audio frequency of cauliflower, corn, cotton, grape, strawberry is 300-500HZ.On keyboard, import required audible region at different plants then, single-chip microcomputer is according to the information of keyboard input, export corresponding level at I/O mouth P1 port, the corresponding port of gating AP89042, this sound signal of storing among the AP89042 is output to digital power amplifier TDA8932, amplifies the back and is broadcasted by loudspeaker.Single-chip microcomputer is also determined the time interval and the volume that audio frequency is play according to the characteristics of this plant simultaneously, as: 3 times weekly, handled 3 hours at every turn, volume: 70db-80db realizes playing automatically.
Above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example; variation, remodeling, interpolation or replacement that those skilled in the art are made in the novel essential scope of this use also should belong to protection domain of the present utility model.
Claims (7)
1. audio plant generator, comprise: audio frequency generating unit, audible region selected cell, power amplification circuit, display, loudspeaker, operated key, power circuit, casing, it is characterized in that: by a micro computer of forming by single-chip microcomputer master chip and keying circuit and light-emitting diode display, the Frequency Band Selection port of audio frequency generating unit is connected to the I/O mouth of single-chip microcomputer, the output of audio frequency generating unit is connected to power amplification circuit, and the output of power amplification circuit is connected to loudspeaker.
2. according to the described audio plant generator of claim 1, it is characterized in that: described power amplification circuit is the digital power amplifier circuit.
3. according to claim 1 or 2 described audio plant generators, it is characterized in that: described single-chip microcomputer is AT89C2051, and the audio frequency generating unit is the multi-segment Programmable speech chip.
4. according to claim 1 or 2 described audio plant generators, it is characterized in that: the I/O mouth of each single-chip microcomputer of described connection audio frequency generating unit Frequency Band Selection port also is connected with the LED display lamp.
5. according to the described audio plant generator of claim 3, it is characterized in that: the I/O mouth of each single-chip microcomputer of described connection audio frequency generating unit Frequency Band Selection port also is connected with the LED display lamp.
6. according to the described audio plant generator of claim 2, it is characterized in that: described digital power amplifier model is TDA8932.
7. according to the described audio plant generator of claim 3, it is characterized in that: described multi-segment Programmable speech chip model is AP89042.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200266175U CN201541507U (en) | 2009-06-01 | 2009-06-01 | Plant acoustic frequency generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200266175U CN201541507U (en) | 2009-06-01 | 2009-06-01 | Plant acoustic frequency generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201541507U true CN201541507U (en) | 2010-08-11 |
Family
ID=42596663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200266175U Expired - Lifetime CN201541507U (en) | 2009-06-01 | 2009-06-01 | Plant acoustic frequency generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201541507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394064A (en) * | 2011-08-30 | 2012-03-28 | 浙江大学 | Combined type plant audio frequency regulation and control method |
-
2009
- 2009-06-01 CN CN2009200266175U patent/CN201541507U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394064A (en) * | 2011-08-30 | 2012-03-28 | 浙江大学 | Combined type plant audio frequency regulation and control method |
| CN102394064B (en) * | 2011-08-30 | 2013-06-05 | 浙江大学 | Combined type plant audio frequency regulation and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |