CN213780721U

CN213780721U - Integrated environmental parameter detection device based on single chip microcomputer

Info

Publication number: CN213780721U
Application number: CN202120283796.1U
Authority: CN
Inventors: 赵琳
Original assignee: Linyi University
Current assignee: Linyi University
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-07-23
Anticipated expiration: 2031-02-01

Abstract

The integrated environmental parameter detection device based on the single chip microcomputer comprises a single chip microcomputer controller, wherein the controller is connected with a temperature sensor, a humidity sensor and an air pressure sensor through an AD converter, and the temperature sensor, the humidity sensor and the air pressure sensor are used for detecting environmental parameters in a laboratory; the controller is connected with a timer, and the timer is used for recording time nodes corresponding to the detected environmental parameters; the controller is also electrically connected with a voice chip and a liquid crystal display screen, the liquid crystal display screen is used for displaying the detected environmental parameters, and the voice chip is used for playing voice information; the controller is connected with an upper computer through a wireless transceiver so as to transmit the detected environmental parameters to the upper computer.

Description

Integrated environmental parameter detection device based on single chip microcomputer

The technical field is as follows:

the utility model relates to an integrated environmental parameter detection device based on singlechip.

Background art:

the single chip computer is an integrated circuit chip, it is a small and perfect microcomputer system that adopts the super large scale integrated circuit technology to integrate the central processing unit CPU with data processing capacity, RAM, ROM, many I/O ports and interrupt system, timer/counter and other functions (also including display drive circuit, pulse width modulation circuit, analog multiplexer, A/D converter and other circuits) onto a silicon chip, it is widely used in the field of industrial control, its main structure includes arithmetic unit, controller and main register; the arithmetic unit has the functions of executing various arithmetic operations and logic operations, and the controller consists of a program counter, an instruction register, an instruction decoder, a time sequence generator, an operation controller and the like, and is a decision mechanism for issuing commands, namely coordinating and commanding the operation of the whole microcomputer system.

The singlechip has the following application characteristics: (1) the integration level is good; (2) the size of the single chip microcomputer is small; (3) the single chip microcomputer has a strong control function, and meanwhile, the running voltage is low; (4) the single chip microcomputer has the advantages of being simple and easy to carry and the like, and meanwhile, the performance-price ratio is high. The single chip microcomputer is mainly applied to the following fields: the system comprises the fields of automation office work, electromechanical integration, advanced weaponry, national defense and military, aerospace, automotive electronics, medical equipment, commercial marketing equipment, computer communication, household appliance, daily life, real-time control and the like.

In the existing laboratory, in order to keep the conditions in the laboratory to meet the experimental requirements, various sensors or detection instruments are required to detect the environmental parameters in the laboratory; because detecting instrument all sets up independently and each other not communicate, so need the staff to read data one by one, just can confirm whether qualified in the environment in the laboratory, operating procedure is comparatively loaded down with trivial details, and the manual work is carried out the record and also appears the error easily, especially when the environmental parameter kind that needs to detect is more, often can appear omitting or the deviation.

The utility model has the following contents:

the embodiment of the utility model provides an integrated environmental parameter detection device based on singlechip, based on the singlechip control principle, integrated electrical connection a plurality of sensors or detecting instrument, make the multinomial environmental parameter that obtains of detection upload automatically to can send the host computer, avoid appearing data omission or deviation, the staff can real-time long-range acquisition laboratory in environmental parameter, thereby judge whether the environment is qualified and satisfy the experiment requirement; still supporting voice prompt facility that is provided with, it is more convenient to use, has solved the problem that exists among the prior art.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

the integrated environmental parameter detection device based on the single chip microcomputer comprises a single chip microcomputer controller, wherein the controller is connected with a temperature sensor, a humidity sensor and an air pressure sensor through an AD converter, and the temperature sensor, the humidity sensor and the air pressure sensor are used for detecting environmental parameters in a laboratory; the controller is connected with a timer, and the timer is used for recording time nodes corresponding to the detected environmental parameters; the controller is also electrically connected with a voice chip and a liquid crystal display screen, the liquid crystal display screen is used for displaying the detected environmental parameters, and the voice chip is used for playing voice information; the controller is connected with an upper computer through a wireless transceiver so as to transmit the detected environmental parameters to the upper computer; the controller is of the model STM32F072C, 48 pins are arranged on the controller, crystal oscillators are arranged on a third pin and a fourth pin of the controller, a second capacitor and a third capacitor which are connected in parallel are arranged on the crystal oscillators, and a seventh pin of the controller is grounded through a first capacitor; the controller links to each other with the time-recorder through No. twelve pins, the controller links to each other with wireless transceiver through No. thirteen pins and No. fourteen pins, the controller links to each other with liquid crystal display through No. twenty pins, the controller links to each other with the pronunciation chip through No. twenty-five pins, the controller links to each other with the AD converter through No. thirty pins.

The type of the timer is 555 timers, 8 pins are arranged on the 555 timers, and the 555 timers are connected with a No. twelve pin of the controller through a No. three pin.

The model of the wireless transceiver is ESP8266, 8 pins are arranged on the wireless transceiver, a fourth pin of the wireless transceiver is connected with a thirteenth pin of the controller, and an eighth pin of the wireless transceiver is connected with a fourteenth pin of the controller.

The model of the voice chip is WT588D, 20 pins are arranged on the voice chip, and the voice chip is connected with a twenty-five pin of the controller through a seven pin; a tenth pin of the voice chip is connected with a 3.3V power supply and is grounded through a fourth capacitor; an eighteen pin and a fifteen pin of the voice chip are connected and grounded; the seventeen pin of the voice chip is connected with a 3.3V power supply, a fourth resistor is arranged between the seventeen pin and the fourteen pin of the voice chip, a seventh capacitor and a third resistor which are connected in series are arranged between the fourteen pin and the thirteenth pin of the voice chip, and a sixth capacitor and a third resistor which are connected in series are arranged between the thirteen pin and the twelfth pin of the voice chip; the voice chip is connected with a 3.3V power supply through an indicator lamp and a first resistor; the voice chip is connected with the loudspeaker through a sixteen-pin, and a second resistor and a fifth capacitor which are connected in parallel are arranged on the sixteen-pin of the voice chip.

The type of AD converter is AD8551, is equipped with 8 pins on the AD converter, the AD converter links to each other through No. six pins and No. thirty pins of controller.

The type of the temperature sensor is SHT20, 4 pins are arranged on the temperature sensor, a second pin of the temperature sensor is connected with a third pin of the AD converter, and the third pin of the temperature sensor is connected with the second pin of the AD converter; the type of the humidity sensor is KZWS-01, 3 pins are arranged on the humidity sensor, a second pin of the humidity sensor is connected with a third pin of the AD converter, and the third pin of the humidity sensor is connected with the second pin of the AD converter; the type of the air pressure sensor is MI K-P300, and the air pressure sensor is connected with a third pin of the AD converter.

The utility model adopts the structure, and integrates and connects various types of electric elements to the controller through the integrated control principle of the singlechip controller, so as to realize the accurate detection and transmission of environmental parameters; converting the detected data into data recognizable to the controller through an AD converter; the detected environmental parameters are transmitted to upper computer equipment of workers through a wireless transceiver, and remote communication is realized; time nodes corresponding to the detection environment parameters are recorded through a timer, so that the working personnel can conveniently inquire historical records; the voice chip is used for playing voice information to prompt workers and the real-time environment of the experimental environment, and the voice chip has the advantages of being accurate, practical and easy and convenient to operate.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an electrical schematic diagram of the controller of the present invention.

Fig. 3 is an electrical schematic diagram of the AD converter of the present invention.

Fig. 4 is an electrical schematic diagram of the temperature sensor of the present invention.

Fig. 5 is an electrical schematic diagram of the humidity sensor of the present invention.

Fig. 6 is a schematic structural diagram of the air pressure sensor of the present invention.

Fig. 7 is an electrical schematic diagram of a wireless transceiver according to the present invention.

Fig. 8 is an electrical schematic diagram of the timer of the present invention.

Fig. 9 is an electrical schematic diagram of the voice chip of the present invention.

The specific implementation mode is as follows:

in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

As shown in fig. 1 to 9, the integrated environment parameter detecting device based on the single chip microcomputer includes a single chip microcomputer controller, which is connected with a temperature sensor, a humidity sensor and an air pressure sensor through an AD converter, and the temperature sensor, the humidity sensor and the air pressure sensor are used for detecting environment parameters in a laboratory; the controller is connected with a timer, and the timer is used for recording time nodes corresponding to the detected environmental parameters; the controller is also electrically connected with a voice chip and a liquid crystal display screen, the liquid crystal display screen is used for displaying the detected environmental parameters, and the voice chip is used for playing voice information; the controller is connected with an upper computer through a wireless transceiver so as to transmit the detected environmental parameters to the upper computer; the controller is of the model STM32F072C, 48 pins are arranged on the controller, crystal oscillators are arranged on a third pin and a fourth pin of the controller, a second capacitor and a third capacitor which are connected in parallel are arranged on the crystal oscillators, and a seventh pin of the controller is grounded through a first capacitor; the controller links to each other with the time-recorder through No. twelve pins, the controller links to each other with wireless transceiver through No. thirteen pins and No. fourteen pins, the controller links to each other with liquid crystal display through No. twenty pins, the controller links to each other with the pronunciation chip through No. twenty-five pins, the controller links to each other with the AD converter through No. thirty pins.

The embodiment of the utility model provides an in integrated environmental parameter detection device's based on singlechip theory of operation do: based on the singlechip control principle, the integrated electric connection is realized with a plurality of sensors or detection instruments, so that a plurality of detected environmental parameters are automatically uploaded and can be sent to an upper computer, data omission or deviation is avoided, and workers can remotely acquire environmental parameters in a laboratory in real time, so as to judge whether the environment is qualified and meet the experimental requirements; still supporting voice prompt facility that is provided with, it is more convenient to use, can be applicable to the laboratory of different disciplines.

In the whole scheme, a single chip microcomputer controller STM32F072C is used as a core component, a crystal oscillator is arranged on a pin III and a pin IV of the controller, a second capacitor and a third capacitor which are connected in parallel are arranged on the crystal oscillator, and a pin VII of the controller is grounded through a first capacitor; the controller links to each other with the time-recorder through No. twelve pin, the controller links to each other with wireless transceiver through No. thirteen pin and No. fourteen pin, the controller links to each other with liquid crystal display through No. twenty pin, the controller links to each other with the pronunciation chip through No. twenty-five pin, the controller links to each other with the AD converter through No. thirty pin, thereby whole hardware circuit structure has been constituted, and rely on above-mentioned whole hardware circuit structure, each item environmental parameter in can real-time accurate detection laboratory, thereby confirm whether the real-time environment in laboratory can satisfy the user demand.

Preferably, the type of the timer is 555 timer, 8 pins are arranged on the 555 timer, and the 555 timer is connected with a twelve-number pin of the controller through a three-number pin, so that corresponding time nodes are provided for detection actions of various sensors.

Preferably, the model of wireless transceiver is ESP8266, is equipped with 8 pins on wireless transceiver, and wireless transceiver's No. four pins link to each other with the No. thirteen pin of controller, and wireless transceiver's No. eight pin links to each other with the No. fourteen pin of controller, makes controller and staff's host computer equipment establish wireless communication, and the data transmission that conveniently detects reaches the host computer.

Preferably, the model of the voice chip is WT588D, 20 pins are arranged on the voice chip, and the voice chip is connected with a twenty-five pin of the controller through a seven pin; a tenth pin of the voice chip is connected with a 3.3V power supply and is grounded through a fourth capacitor; an eighteen pin and a fifteen pin of the voice chip are connected and grounded; a seventeen pin of the voice chip is connected with a 3.3V power supply, a fourth resistor is arranged between the seventeen pin and the fourteen pin of the voice chip, a seventh capacitor and a third resistor which are connected in series are arranged between the fourteen pin and the thirteen pin of the voice chip, and a sixth capacitor and a third resistor which are connected in series are arranged between the thirteen pin and the twelfth pin of the voice chip; the voice chip is connected with a 3.3V power supply through an indicator lamp and a first resistor; the voice chip is connected with the loudspeaker through the sixteen pins, the second resistor and the fifth capacitor which are connected in parallel are arranged on the sixteen pins of the voice chip, corresponding voice information can be played under the effect of the loudspeaker, and workers can conveniently know the state of a laboratory in time.

Preferably, the type of the AD converter is AD8551, 8 pins are provided on the AD converter, and the AD converter is connected to the thirty pins of the controller through the six pins to convert the detected data into the type that can be recognized by the controller.

When the device is actually used, different types of sensors or detection equipment are placed according to the area and the type of a laboratory, and the detection equipment and the sensors are placed at some specified positions to ensure that the detection result is accurate; then on inserting the controller, the electric elements of cooperation a plurality of types, real-time detection environmental parameter uploads in real time, cooperation liquid crystal display and pronunciation chip, can make the staff in time acquire information to confirm the environmental status in the laboratory fast.

To sum up, the integrated environmental parameter detection device based on the single chip microcomputer in the embodiment of the present invention can integrate and electrically connect a plurality of sensors or detection instruments based on the single chip microcomputer control principle, so that a plurality of detected environmental parameters can be automatically uploaded and can be sent to an upper computer, thereby avoiding data omission or deviation, and a worker can remotely obtain environmental parameters in a laboratory in real time, thereby judging whether the environment is qualified and meeting the experimental requirements; still supporting voice prompt facility that is provided with, it is more convenient to use, can be applicable to the laboratory of different disciplines.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. Integrated environmental parameter detection device based on singlechip, its characterized in that: the device comprises a singlechip controller, wherein the controller is connected with a temperature sensor, a humidity sensor and an air pressure sensor through an AD converter, and the temperature sensor, the humidity sensor and the air pressure sensor are used for detecting environmental parameters in a laboratory; the controller is connected with a timer, and the timer is used for recording time nodes corresponding to the detected environmental parameters; the controller is also electrically connected with a voice chip and a liquid crystal display screen, the liquid crystal display screen is used for displaying the detected environmental parameters, and the voice chip is used for playing voice information; the controller is connected with an upper computer through a wireless transceiver so as to transmit the detected environmental parameters to the upper computer; the controller is of the model STM32F072C, 48 pins are arranged on the controller, crystal oscillators are arranged on a third pin and a fourth pin of the controller, a second capacitor and a third capacitor which are connected in parallel are arranged on the crystal oscillators, and a seventh pin of the controller is grounded through a first capacitor; the controller links to each other with the time-recorder through No. twelve pins, the controller links to each other with wireless transceiver through No. thirteen pins and No. fourteen pins, the controller links to each other with liquid crystal display through No. twenty pins, the controller links to each other with the pronunciation chip through No. twenty-five pins, the controller links to each other with the AD converter through No. thirty pins.

2. The integrated environment parameter detection device based on the single chip microcomputer according to claim 1, characterized in that: the type of the timer is 555 timers, 8 pins are arranged on the 555 timers, and the 555 timers are connected with a No. twelve pin of the controller through a No. three pin.

3. The integrated environment parameter detection device based on the single chip microcomputer according to claim 1, characterized in that: the model of the wireless transceiver is ESP8266, 8 pins are arranged on the wireless transceiver, a fourth pin of the wireless transceiver is connected with a thirteenth pin of the controller, and an eighth pin of the wireless transceiver is connected with a fourteenth pin of the controller.

4. The integrated environment parameter detection device based on the single chip microcomputer according to claim 1, characterized in that: the model of the voice chip is WT588D, 20 pins are arranged on the voice chip, and the voice chip is connected with a twenty-five pin of the controller through a seven pin; a tenth pin of the voice chip is connected with a 3.3V power supply and is grounded through a fourth capacitor; an eighteen pin and a fifteen pin of the voice chip are connected and grounded; the seventeen pin of the voice chip is connected with a 3.3V power supply, a fourth resistor is arranged between the seventeen pin and the fourteen pin of the voice chip, a seventh capacitor and a third resistor which are connected in series are arranged between the fourteen pin and the thirteenth pin of the voice chip, and a sixth capacitor and a third resistor which are connected in series are arranged between the thirteen pin and the twelfth pin of the voice chip; the voice chip is connected with a 3.3V power supply through an indicator lamp and a first resistor; the voice chip is connected with the loudspeaker through a sixteen-pin, and a second resistor and a fifth capacitor which are connected in parallel are arranged on the sixteen-pin of the voice chip.

5. The integrated environment parameter detection device based on the single chip microcomputer according to claim 1, characterized in that: the type of AD converter is AD8551, is equipped with 8 pins on the AD converter, the AD converter links to each other through No. six pins and No. thirty pins of controller.

6. The integrated environment parameter detection device based on the single chip microcomputer according to claim 1, characterized in that: the type of the temperature sensor is SHT20, 4 pins are arranged on the temperature sensor, a second pin of the temperature sensor is connected with a third pin of the AD converter, and the third pin of the temperature sensor is connected with the second pin of the AD converter; the type of the humidity sensor is KZWS-01, 3 pins are arranged on the humidity sensor, a second pin of the humidity sensor is connected with a third pin of the AD converter, and the third pin of the humidity sensor is connected with the second pin of the AD converter; the model of the air pressure sensor is MIK-P300, and the air pressure sensor is connected with a third pin of the AD converter.