CN216410254U - Tobacco planting detection system based on 51 single-chip microcomputer - Google Patents
Tobacco planting detection system based on 51 single-chip microcomputer Download PDFInfo
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- CN216410254U CN216410254U CN202121023915.6U CN202121023915U CN216410254U CN 216410254 U CN216410254 U CN 216410254U CN 202121023915 U CN202121023915 U CN 202121023915U CN 216410254 U CN216410254 U CN 216410254U
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Abstract
The utility model relates to a tobacco planting detection system based on a 51 single chip microcomputer, which effectively solves the problems that the illumination intensity information can not be acquired in real time in the existing tobacco planting process, the data of ambient temperature and humidity are detected and displayed, the illumination intensity time is recorded and the environment alarm function is not provided; the technical scheme for solving the problem is that the LED illumination control device comprises a single chip microcomputer, a power supply module, an illumination detection module, a humidity detection module, an LCD display module, a timing module and a key module, wherein the power supply module, the illumination detection module, the humidity detection module, the LCD display module, the timing module and the key module are all electrically connected with the single chip microcomputer; the structure is simple, and the practicability is strong.
Description
Technical Field
The utility model relates to the technical field of tobacco planting, in particular to a tobacco planting detection system based on a 51 single chip microcomputer.
Background
At present, global smokers are more than one billion and account for about one fourth of the world population, and the world occupies huge market as the country with the largest global smoker base number. The latest data of the national tobacco monopoly is shown in figure 1, the total amount of industrial and commercial taxes realized in 2019 in the tobacco industry is 12056 million yuan, and the increase on the same ratio is 4.3%; the total amount of financial payment is 11770 million yuan, and the year by year increases by 17.7%. As can be seen from the attached figure 2, the total amount of the tax and the total amount of the financial payment reach the highest history. At the present stage, the quality of life of people is improved, people have higher pursuit for the quality of tobacco, and the quality of tobacco is also paid attention.
As a kind of light-loving crop, the illumination intensity received by the tobacco can directly influence the growth of the tobacco, so the illumination intensity of the environment of the tobacco needs to be detected in the planting process of the tobacco. The domestic tobacco planting mode mainly takes scattered household operation as a main mode, the traditional manual mode is followed, small-sized agricultural machinery is used in partial links, the mechanization degree is low, and the labor amount and the operation cost are high. At this stage, large-scale planting parks are still available, and the traditional nursing scheme causes extremely high cost, which is not economical for production operation. Therefore, the process of manual operation is realized by adopting automatic equipment in combination with an electronic technology and a control technology, so that the cost is greatly reduced, the expenditure is reduced, and the profit margin is improved.
However, the existing tobacco planting process has the following problems:
1. the illumination intensity information cannot be acquired in real time, the data of the ambient temperature and humidity cannot be displayed at the same time, the illumination intensity time is recorded, and the tobacco planting environment is detected;
2. when the illumination intensity is too high, the buzzer cannot give an alarm to remind people so as to protect the planted tobacco;
3. temperature and humidity information and illumination intensity information cannot be accurately displayed.
Therefore, the utility model provides a tobacco planting detection system based on a 51 single-chip microcomputer to solve the problem.
SUMMERY OF THE UTILITY MODEL
Aiming at the situation and overcoming the defects of the prior art, the utility model provides a tobacco planting detection system based on a 51 single chip microcomputer, which effectively solves the problems that the illumination intensity information can not be acquired in real time in the existing tobacco planting process, the data of the ambient temperature and humidity can be detected and displayed, the illumination intensity time is recorded, and the environment alarm function is not provided.
The utility model relates to a tobacco planting detection system based on a 51 single chip microcomputer, which is characterized by comprising the single chip microcomputer, a power supply module, an illumination detection module, a humidity detection module, an LCD display module, a timing module and a key module;
the power module, the illumination detection module, the humidity detection module, the LCD display module, the timing module and the key module are electrically connected with the single chip.
Preferably, the single chip microcomputer is an STC89C51 single chip microcomputer.
Preferably, the power module adopts a battery with 5V direct current voltage.
Preferably, the timing chip of the timing module is a DS1302 (U1);
y1 is connected between the pin 2 and the pin C1 of the U1, and the other end of the Y1 is connected with the pin 3 of the U1.
Preferably, the LCD display module is a 1602 character type liquid crystal module;
pins 7-14 of the LCD display module are respectively connected with pins 39-32 of the single chip microcomputer;
the pins 40 and 31 of the single chip microcomputer are connected with VCC;
and the pin 3 is connected with the R2 and then connected with GND.
Preferably, the temperature detection module and the humidity detection module adopt DHT11, and the DHT11 is a digital temperature and humidity sensor;
the pin 1 of the singlechip is connected with VCC;
a pin 4 of the singlechip is connected with GND;
and the pin 2 of the singlechip is connected with the communication interface of the DHT 11.
Preferably, the illumination detection module adopts a GY-30 sensor (U3);
Preferably, a pin 9 of the single chip microcomputer is connected with a reset resistor R1, and the other end of the reset resistor R1 is connected with GND;
the pin 9 of the single-chip microcomputer is connected with the negative electrode of a single-pole capacitor C1, the positive electrode of the single-pole capacitor C1 is connected with VCC5V, the positive electrode of the single-pole capacitor C1 is connected with a switch S1, and the other end of the switch S1 is connected with the pin 9 of the single-chip microcomputer.
Preferably, the single-chip microcomputer crystal oscillator circuit adopts a crystal oscillator of 11.0592MHz or 12 MHz;
two ends of the crystal oscillator X1 are respectively connected with the XTAL1 and the XTAL2 of the single chip microcomputer, two ends of the crystal oscillator X1 are respectively connected with the capacitors C3 and C4, and the other ends of the capacitors C3 and C4 are both connected with GND.
The utility model is improved aiming at the existing tobacco planting, and effectively solves the problems of detecting the temperature, the humidity and the light intensity parameters around the tobacco planting, accurately displaying the temperature, the humidity and the light intensity on an LED screen and automatically adjusting the threshold value of the light intensity by arranging a single chip microcomputer, a power supply module, a light detection module, a temperature detection module, a humidity detection module, an LCD display module and a timing module; the reset operation of the singlechip and the setting of the illumination intensity threshold are finished by setting keys; the LCD display module is arranged to display the currently detected temperature, humidity and illumination intensity; and the structure is simple and stable, the circuit is stable, and the universality is very high.
Drawings
FIG. 1 is a schematic diagram of the total industrial and commercial tax amount of the tobacco industry.
FIG. 2 is a schematic diagram of the total amount of financing in the tobacco industry according to the present invention.
FIG. 3 is a block diagram of the system of the present invention.
FIG. 4 is a circuit diagram of a timing module according to the present invention.
FIG. 5 is a schematic circuit diagram of an LCD display module according to the present invention.
FIG. 6 is a circuit diagram of the temperature and humidity detecting module according to the present invention.
FIG. 7 is a schematic diagram of the circuit connection of the illumination detection module according to the present invention.
Fig. 8 is a schematic diagram of the connection of the reset circuit of the single chip microcomputer.
FIG. 9 is a schematic diagram of a single-chip crystal oscillator circuit according to the present invention.
FIG. 10 is a logic diagram of the tobacco planting test of the present invention.
FIG. 11 is a schematic view of a main interface of the inspection system of the present invention.
FIG. 12 is a diagram illustrating an illumination threshold setting according to the present invention.
FIG. 13 is a schematic view of a timing display interface according to the present invention.
Detailed Description
The foregoing and other aspects, features and advantages of the utility model will be apparent from the following more particular description of embodiments of the utility model, as illustrated in the accompanying drawings in which reference is made to figures 1 to 13. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
The tobacco planting detection system based on the 51 single-chip microcomputer is characterized by comprising the single-chip microcomputer, a power supply module, an illumination detection module, a humidity detection module, an LCD display module, a timing module and a key module;
the power supply module, the illumination detection module, the humidity detection module, the LCD display module, the timing module and the key module are all electrically connected with the single chip;
the single chip microcomputer is a control center of the whole system, and can complete specific functions by commanding peripheral devices to work in a coordinated manner, the realization of hardware adopts a modular design, each module only realizes one specific function, and finally all the modules are connected in a lap joint mode, and the design method can reduce the complexity of system design;
the single chip microcomputer is used as a main controller and is responsible for processing data sent by the modules and sending the processed data to the display module, and the temperature and humidity detection module and the illumination detection module are mainly used for collecting surrounding environment parameters and sending the data to the single chip microcomputer. The keys are mainly used for completing the reset operation of the single chip microcomputer and setting the illumination intensity threshold, and the LCD display module is used for displaying the currently detected temperature, humidity and illumination intensity;
this embodiment is when concrete implementation, at first through the singlechip initialize each module, through the button module after that accomplish the reset operation of singlechip and the settlement of illumination intensity threshold value, then through illumination detection module, humidity detection module detect the illumination intensity and the humidity of tobacco planting environment, give the singlechip with information transmission simultaneously, the singlechip with humiture and illumination intensity information transfer for LCD display module to show through LCD display module.
In a second embodiment, on the basis of the first embodiment, the present embodiment provides a type of the single chip microcomputer, specifically, the type of the single chip microcomputer is an STC89C51 single chip microcomputer.
In the third embodiment, on the basis of the second embodiment, in the whole system, the power supply is one of the most important parts, when the voltage is unstable, the data measured by each module will be disordered, the single chip microcomputer and the LCD display module cannot work normally, and when the power supply works for a long time, the power supply generates heat, and short-circuit burnout of components is easy to occur, so that the power supply with the protection function is provided in the embodiment, and specifically, the power supply module adopts a battery with 5V direct-current voltage.
In a fourth embodiment, based on the second embodiment, the timing chip of the timing module is a DS1302 (U1);
the DS1302 and the single chip microcomputer can simply adopt a synchronous serial mode for communication, as shown in FIG. 4;
y1 is connected between the pin 2 of the U1 and the pin C1, and the other end of the Y1 and the pin of the U1;
in this embodiment, only three pins are needed: RST reset, I/O data line, SCLK serial clock, the clock signal of STC89C51 can be produced by internal oscillator, also can be provided by external circuit directly, and internal oscillator's input and output pin are XTAL1 and XATL2 respectively, provide the clock signal for singlechip internal circuit by XTAL2, when the clock signal is provided by external circuit, external clock connection pin XTAL2, XTAL1 pin ground.
In the fifth embodiment, on the basis of the fourth embodiment, the LCD display module is a 1602 character type liquid crystal module, and the 1602 character type liquid crystal module is a dot matrix type liquid crystal module, so that the driving is convenient;
pins 4, 5 and 6 of the LCD display module are respectively connected with pins 28, 27 and 26 of the single chip microcomputer;
pins 7-14 of the LCD display module are respectively connected with pins 39-32 of the single chip microcomputer;
the pins 40 and 31 of the single chip microcomputer are connected with VCC;
and the pin 3 is connected with the R2 and then connected with GND.
Sixth embodiment, on the basis of the second embodiment, the temperature detection module and the humidity detection module adopt DHT11, the DHT11 is a digital temperature and humidity sensor, and can directly transmit the acquired temperature and humidity of the current environment in a digital manner, and the DHT11 adopts single bus communication, so according to the connection method shown in fig. 6, data acquisition and transmission can be realized only by connecting one I/0 (pin 2) of the single chip microcomputer and a communication interface of the DHT11, and the specific connection method is as follows:
the pin 1 of the singlechip is connected with VCC;
a pin 4 of the singlechip is connected with GND;
and the pin 2 of the singlechip is connected with the communication interface of the DHT 11.
Seventh embodiment, on the basis of the second embodiment, the illumination detection module uses a GY-30 sensor (U3), and since a built-in 16-bit ad converter can directly output digital data, complicated calculation is omitted, calibration is omitted, an ambient light source is not distinguished, and spectral characteristics close to visual sensitivity are omitted, referring to fig. 7, pin SCL is an IIC bus clock pin, and pin SDA is an IIC bus data pin. The circuit shown in fig. 7 is connected to the pin P1.0 and the pin P1.1 of the 89C51, respectively, so as to realize the collection and transmission of illumination, and the specific circuit connections are as follows:
In the eighth embodiment, on the basis of the second embodiment, the pin 9 of the single chip microcomputer is connected with a reset resistor R1, and the other end of the reset resistor R1 is connected with GND;
the pin 9 of the single-chip microcomputer is connected with the negative electrode of a single-pole capacitor C1, the positive electrode of the single-pole capacitor C1 is connected with VCC5V, the positive electrode of the single-pole capacitor C1 is connected with a switch S1, and the other end of the switch S1 is connected with the pin 9 of the single-chip microcomputer;
the reset circuit is composed of a capacitor series resistor, and in combination with the property that the capacitor voltage cannot suddenly change, when the system is powered on, the RST pin will have a high level, and the duration of the high level is determined by the RC value of the circuit. As shown in fig. 8, when the key is pressed, the RST is reset, so that the single chip microcomputer is initialized.
Ninth, on the basis of the second embodiment, the single-chip crystal oscillator circuit adopts a crystal oscillator of 11.0592MHz or 12MHz, and since 2 machine cycles are required to detect a falling edge from 1 to 0, it is required that the sampled level is maintained for at least one machine cycle, when the frequency of the crystal oscillator is 12MHz, the highest counting frequency does not exceed 1/2MHz, that is, the period of the counting pulse is greater than 2ms, the oscillation starting capacitors C3 and C4 adopt 20pF, the port P0 is open-drain output, when serving as an output port, a pull resistor needs to be added, and the resistance value is generally 10 kilo ohms;
two ends of the crystal oscillator X1 are respectively connected with the XTAL1 and the XTAL2 of the single chip microcomputer, two ends of the crystal oscillator X1 are respectively connected with the capacitors C3 and C4, and the other ends of the capacitors C3 and C4 are both connected with GND.
When the system is used specifically, the detection equipment is placed around the growth of tobacco, data is initialized at first, and the system automatically acquires the illumination intensity and the temperature and humidity data. Setting an illumination threshold according to the illumination intensity required by the growth of the tobacco, starting timing by a detection system when the external illumination intensity reaches the set threshold, finally displaying the temperature, humidity and illumination intensity of the tobacco growth environment under the specified illumination intensity on a liquid crystal screen, and automatically recording the time;
in the process of detecting the environment, the display is carried out through the LCD display module, and the display mode is as follows:
1. FIG. 11 is a main interface of the detection system, the light intensity (light) is indicated by five digits, and capital letters T and H respectively indicate the detected temperature and humidity;
2. the threshold setting function in the detection system can record the effective illumination time of tobacco growth, a setting key is pressed, the illumination threshold setting shown in figure 12 is displayed on an interface, and the adjustment of the threshold can be realized by pressing an add-subtract key;
3. pressing the view key causes the interface to display a time period exceeding the set light intensity threshold (fig. 13), and pressing the view key again causes the interface to return to the main interface detection window.
According to the utility model, through researching the influence of illumination intensity, temperature and humidity and the like on the growth of tobacco, a tobacco planting detection system based on a 51 single chip microcomputer is designed, the detection of illumination, temperature and humidity environments in the growth process of tobacco is realized, when the illumination intensity is measured, a light intensity threshold value can be set, the size set by the threshold value is controlled by two keys, and timing is started when the illumination intensity is greater than a set value. In addition, a key for resetting timing is added, so that the timing is convenient to reset, and the detection data is finally displayed through an LCD screen; the time for the tobacco to receive the effective illumination intensity is displayed through the detection system, the tobacco maturity can be accurately controlled, the optimal time for harvesting the tobacco is grasped, and the quality of the tobacco is optimal; the design has complete functions and wide application range, and can be expected to be widely applied in the tobacco planting industry.
Claims (6)
1. The tobacco planting detection system based on the 51 single-chip microcomputer is characterized by comprising the single-chip microcomputer, a power supply module, an illumination detection module, a temperature detection module, a humidity detection module, an LCD display module, a timing module and a key module;
the power supply module, the illumination detection module, the temperature detection module, the humidity detection module, the LCD display module, the timing module and the key module are all electrically connected with the single chip;
the model of the single chip microcomputer is STC89C51 single chip microcomputer;
the temperature detection module and the humidity detection module adopt DHT11, and the DHT11 is a digital temperature and humidity sensor;
the pin 1 of the singlechip is connected with VCC;
pin 2 of the single chip is connected with R1 and then connected with VCC;
a pin 4 of the singlechip is connected with GND;
the pin 2 of the single chip microcomputer is connected with the communication interface of the DHT 11;
the illumination detection module adopts a GY-30 sensor (U3);
pin 1 of the U3 is connected with VCC 5V;
pins 4 and 5 of the U3 are connected with GND;
pin 3 of the U3 is connected with pin 2 of the singlechip, and pin 2 of the singlechip is connected with a resistor R2 and then with VCC 5V;
pin 2 of the U3 is connected to a resistor R1 and then to VCC 5V.
2. The tobacco planting detection system based on the 51-single chip microcomputer according to claim 1, wherein the power supply module adopts a battery with 5V direct current voltage.
3. The tobacco planting detection system based on the 51-single-chip microcomputer according to claim 1, wherein a timing chip of the timing module is a DS1302 (U1);
pin 1 of the U1 is connected to VDD 5;
pin 8 of the U1 is connected with the anode of BT1, and the other end of BT1 is connected with GNDF;
pin 6 of U1 connects R3B, another end of R3B connects VDD5, pin 6 of R3B and U1 connect with P3.6 of the said one-chip computer after connecting;
pin 7 of the U1 is connected with P3.5 of the singlechip, R2C is connected between pin 7 of the U1 and P3.5 of the singlechip, and the other end of the R2C is connected with VDD 5;
pin 5 of the U1 is connected with P3.7 of the singlechip, RA1 is connected between pin 5 of the U1 and P3.7 of the singlechip, and the other end of RA1 is connected with VDD 5;
pin 4 of U1 is connected with GND;
pin 2 of the U1 is connected with C1, and the other end of the C1 is connected with GND;
pin 3 of the U1 is connected with C2, and the other end of the C2 is connected with GND;
y1 is connected between the pin 2 and the pin C1 of the U1, and the other end of the Y1 is connected with the pin 3 of the U1.
4. The 51-singlechip-based tobacco planting detection system of claim 3, wherein the LCD module is a 1602 character type liquid crystal module;
pins 4, 5 and 6 of the LCD display module are respectively connected with pins 28, 27 and 26 of the single chip microcomputer;
pins 7-14 of the LCD display module are respectively connected with pins 39-32 of the single chip microcomputer;
the pins 40 and 31 of the single chip microcomputer are connected with VCC;
pins 1 and 16 of the LCD display module are connected with GND;
pins 2 and 15 of the LCD display module are connected with VCC;
and the pin 3 is connected with the R2 and then connected with GND.
5. The tobacco planting detection system based on the 51-singlechip microcomputer according to claim 1, wherein a pin 9 of the singlechip microcomputer is connected with a reset resistor R1, and the other end of the reset resistor R1 is connected with GND;
the pin 9 of the single-chip microcomputer is connected with the negative electrode of a single-pole capacitor C1, the positive electrode of the single-pole capacitor C1 is connected with VCC5V, the positive electrode of the single-pole capacitor C1 is connected with a switch S1, and the other end of the switch S1 is connected with the pin 9 of the single-chip microcomputer.
6. The tobacco planting detection system based on the 51-single-chip microcomputer according to claim 1, wherein the single-chip microcomputer crystal oscillator circuit adopts a crystal oscillator of 11.0592MHz or 12 MHz;
two ends of the crystal oscillator X1 are respectively connected with the XTAL1 and the XTAL2 of the single chip microcomputer, two ends of the crystal oscillator X1 are respectively connected with the capacitors C3 and C4, and the other ends of the capacitors C3 and C4 are both connected with GND.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121023915.6U CN216410254U (en) | 2021-05-13 | 2021-05-13 | Tobacco planting detection system based on 51 single-chip microcomputer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121023915.6U CN216410254U (en) | 2021-05-13 | 2021-05-13 | Tobacco planting detection system based on 51 single-chip microcomputer |
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| CN216410254U true CN216410254U (en) | 2022-04-29 |
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| CN202121023915.6U Active CN216410254U (en) | 2021-05-13 | 2021-05-13 | Tobacco planting detection system based on 51 single-chip microcomputer |
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