CN220525056U - Intelligent measuring cylinder for teaching - Google Patents
Intelligent measuring cylinder for teaching Download PDFInfo
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- CN220525056U CN220525056U CN202320848885.5U CN202320848885U CN220525056U CN 220525056 U CN220525056 U CN 220525056U CN 202320848885 U CN202320848885 U CN 202320848885U CN 220525056 U CN220525056 U CN 220525056U
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- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 14
- 229910052744 lithium Inorganic materials 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 10
- 239000003381 stabilizer Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an intelligent measuring cylinder for teaching, which comprises a measuring cylinder body, wherein an information acquisition system is arranged in the measuring cylinder body: the information acquisition system comprises a pressure acquisition unit, an angle acquisition unit, a singlechip, a power module and a communication unit; the pressure acquisition unit is used for acquiring pressure data information of liquid in the measuring cylinder body, the angle acquisition unit is used for acquiring angle data information of the measuring cylinder body, the singlechip is used for receiving the data information of the pressure acquisition unit and the angle acquisition unit and transmitting the data to external equipment through the communication unit, and the power module is used for supplying power to the information acquisition system. The utility model has the advantages that the status information of the measuring cylinder used by students in the experimental process can be acquired and sent to the upper computer by the information acquisition system additionally arranged in the common measuring cylinder, and the acquired data can be compared with the data of operators in the later period so as to achieve the purpose of accurately evaluating the experimental process of each student.
Description
Technical Field
The utility model relates to a teaching experimental instrument, in particular to an intelligent measuring cylinder for teaching.
Background
The measuring cylinder is a common measuring device in laboratory, mainly made of glass, and a few (especially large) transparent plastics, and is used for quantitatively measuring liquid according to volume.
The measuring cylinder is in a vertical long cylinder shape, one side of the upper edge is provided with a nozzle, the measuring cylinder is convenient to pour, and the lower part is provided with a wide foot to keep stable. The cylinder wall is carved with a volumetric measuring range for a user to read the volume, and a measuring cylinder commonly used in a laboratory is shown in fig. 1. When viewing the reading, the experimenter's line of sight needs to be level with the lowest part of the concave liquid level (or the highest part of the convex liquid level) of the liquid.
In primary school science and middle school physics, chemistry and biology experiments, the measuring cylinder is also a main tool commonly used by students, the correct operation and use of the measuring cylinder are indispensable study contents of the students, and in experimental operation examination of the middle school physical and life, experimental test questions of the correct use of the measuring cylinder are also frequently found out.
In the teaching and judging process of the measuring cylinder using method for students, teachers need to judge whether the students place the measuring cylinder on a horizontal plane during measurement, and meanwhile judge whether the students can correctly read and record the volume of liquid in the measuring cylinder. The existing measuring cylinder is adopted for teaching, a teacher cannot collect specific operation data (such as angle information when the measuring cylinder is used, volume data of liquid in the measuring cylinder and the like) of students when the measuring cylinder is operated, and intelligent judgment cannot be achieved.
Disclosure of Invention
The utility model aims to provide an intelligent measuring cylinder for teaching, which can collect the angle of the student measuring cylinder and the volume data of liquid in the measuring cylinder when the student operates, so as to realize intelligent judgment of teachers.
In order to achieve the above purpose, the present utility model may adopt the following technical scheme:
the intelligent measuring cylinder for teaching comprises a measuring cylinder body, wherein an information acquisition system is arranged in the measuring cylinder body:
the information acquisition system comprises a pressure acquisition unit, an angle acquisition unit, a singlechip, a power module and a communication unit;
the pressure acquisition unit is used for acquiring pressure data information of liquid in the measuring cylinder body, the angle acquisition unit is used for acquiring angle data information of the measuring cylinder body, the singlechip is used for receiving the data information of the pressure acquisition unit and the angle acquisition unit and transmitting the data to external equipment through the communication unit, and the power module is used for supplying power to the information acquisition system.
Preferably, the communication unit comprises a wireless transceiver module and/or a serial communication module.
Preferably, the pressure acquisition unit comprises a barometric pressure sensor; the bottom of the measuring cylinder body is connected with a hose communicated with the inner cavity of the measuring cylinder body in a sealing way, the inner diameter of the hose is smaller than 1mm, and the outlet of the hose is communicated with the inlet of the air pressure sensor in a sealing way.
Preferably, the angle acquisition unit is a gyroscope.
Preferably, the measuring cylinder body is composed of a base and a cylinder body, and the information acquisition system is arranged in the base, so that the structure of the measuring cylinder body is more compact.
Specifically, the base comprises a base cavity extending downwards from the bottom of the cylinder body in a sealing way and a bottom plate for blocking the base cavity, and a circuit board integrated with the information acquisition system is arranged in the base cavity.
The power module comprises a lithium battery, a lithium battery charging management chip and a wireless charging module, and the lithium battery is arranged in the seat cavity.
The utility model has the advantages that the status information of the measuring cylinder used by students in the experimental process can be acquired and sent to the upper computer by the information acquisition system additionally arranged in the common measuring cylinder, and the acquired data can be compared with the data of operators in the later period so as to achieve the aim of accurately evaluating the experimental process of each student: when a student operates, an angle acquisition unit (angle sensor) in the information acquisition system can acquire whether the placement of the measuring cylinder is on a horizontal plane, a pressure acquisition unit (air pressure sensor) can transmit the pressure of air in the connecting hose to the air pressure sensor through liquid in the measuring cylinder to acquire a pressure value, a singlechip receives data of the sensor and calculates the volume of the liquid in the measuring cylinder according to a preset program, and a communication unit sends the acquired data to an upper computer, so that data acquisition can be realized in the experimental operation process of the student.
Drawings
Fig. 1 is a structural view of a conventional measuring cylinder.
Fig. 2 is a schematic structural view of the present utility model.
Fig. 3 is a schematic block diagram of the circuit of the present utility model.
Detailed Description
The present application is described in more detail below with reference to the accompanying drawings for the understanding of those skilled in the art.
As shown in fig. 2 and 3, the intelligent measuring cylinder for teaching comprises a measuring cylinder body consisting of a base 1 and a cylinder body 2, wherein an information acquisition system is arranged in the base 1.
The information acquisition system comprises a pressure acquisition unit, an angle acquisition unit, a singlechip, a power module and a communication unit; the pressure acquisition unit is used for acquiring pressure data information of liquid in the measuring cylinder body, the angle acquisition unit is used for acquiring angle data information of the measuring cylinder body, the singlechip is used for receiving the data information of the pressure acquisition unit and the angle acquisition unit and transmitting the data to external equipment through the communication unit, and the power module is used for supplying power to the information acquisition system.
Specifically, the pressure acquisition unit of the present application includes a barometric pressure sensor 3 (a commercially available product of model XGZP010SB1 may be used); in practical manufacturing, a hose 4 communicated with the inner cavity of the cylinder 2 is hermetically connected to the bottom of the cylinder 2, a thin tube (the lumen of the thin tube is communicated with the inside of the cylinder 2 and used as a pipe joint) can be integrally formed and extended at the bottom of the cylinder 2 for convenient installation, the inner diameter of the thin tube is small (less than 1 mm), then the hose 4 with the inner diameter smaller than 1mm is hermetically sleeved on the thin tube, the outlet of the hose 4 is hermetically communicated with the inlet of the air pressure sensor 3, so that a very thin air passage is formed from top to bottom, and when the liquid pressure in the cylinder 2 is transmitted to the air pressure sensor 3 through the air passage, the liquid in the cylinder 2 cannot enter the air passage due to the small inner diameter of the air passage and the upward acting force of the liquid and the air on water.
The communication unit of the application comprises a wireless transceiver module and/or a serial port communication module: the wireless transceiver module can adopt ESP8266 series WIFI module, and the serial port communication module can adopt USB bus conversion chip CH340G.
The angle acquisition unit of this application is gyroscope 5, can adopt the gyroscope of MPU3050 model.
The singlechip used in the application can adopt a 32-bit microcontroller STM32F103C8T6 or STM32F103C6T6A; the power supply module comprises a lithium battery charging management chip TC4056A, a 3.3V linear voltage stabilizer RT9013-3.3V and a lithium battery 6; during charging, the wireless charging module charges the lithium battery, and the lithium battery charging management chip converts the voltage of the wireless charging module into the charging voltage of the lithium battery in the process; in the use process of the measuring cylinder, the lithium battery supplies power to the singlechip through the voltage stabilizer, and the voltage stabilizer enables the voltage of the lithium battery to be converted into the working voltage of 3.3V of the singlechip.
In order to make the structure of the whole measuring cylinder compact, the base 1 comprises a base cavity extending downwards from the bottom of the cylinder body in a sealing way and a bottom plate 7 for plugging the base cavity, and a circuit board 8 integrated with an information acquisition system (comprising a barometric sensor 3, a gyroscope 5, a singlechip, a power supply module, a wireless transceiver module, a serial communication module and the like) is arranged in the base cavity. The lithium battery 6 can adopt wireless charging seat to carry out wireless charging, and the whole outward appearance of intelligent graduated flask is no opening for teaching, and the water-proof effects is better.
The operation judging method of the intelligent measuring cylinder for teaching comprises the following steps:
step 1, firstly, horizontally placing a measuring cylinder body on a horizontal plane, and then pouring specified quantitative liquid into a cylinder body;
step 2, a pressure acquisition unit (such as an XGZP010SB1 model air pressure sensor) arranged in the measuring cylinder body acquires pressure data information of liquid in the measuring cylinder body and sends the pressure data information to a singlechip (a 32-bit microcontroller STM32F103C8T6 or STM32F103C6T6A can be adopted), the singlechip receives the acquired pressure data information of the liquid, and the volume of the liquid in the measuring cylinder is calculated according to a preset program (a C language program preset by the singlechip);
step 3, an angle acquisition unit (such as an MPU3050 type gyroscope) acquires angle data information of the measuring cylinder body and sends the angle data information to the singlechip;
step 4, the singlechip simultaneously transmits the data information of the liquid volume calculated in the step 2 and the angle data information received in the step 3 to the upper computer through a wireless transceiver module (such as an ESP8266 series WIFI module);
step 5, the operator submits the data information of the operation completion to the upper computer;
and 6, comparing the data information submitted by the operator with the data information acquired by the measuring cylinder body by the upper computer through data analysis software (the experimental operation evaluation system or the automatic pouring into an Excel table for comparison), and judging whether the data submitted by the operator accords with the corresponding operation result or not, thereby realizing intelligent evaluation.
Claims (7)
1. The utility model provides an intelligent graduated flask is used in teaching, includes the graduated flask body, its characterized in that: an information acquisition system is arranged on the measuring cylinder body:
the information acquisition system comprises a pressure acquisition unit, an angle acquisition unit, a singlechip, a power module and a communication unit;
the pressure acquisition unit is used for acquiring pressure data information of liquid in the measuring cylinder body, the angle acquisition unit is used for acquiring angle data information of the measuring cylinder body, the singlechip is used for receiving the data information of the pressure acquisition unit and the angle acquisition unit and transmitting the data to external equipment through the communication unit, and the power module is used for supplying power to the information acquisition system.
2. The intelligent measuring cylinder for teaching of claim 1, wherein: the communication unit comprises a wireless transceiver module and/or a serial communication module.
3. The intelligent measuring cylinder for teaching of claim 1, wherein: the pressure acquisition unit comprises an air pressure sensor; the bottom of the measuring cylinder body is connected with a hose communicated with the inner cavity of the measuring cylinder body in a sealing way, the inner diameter of the hose is smaller than 1mm, and the outlet of the hose is communicated with the inlet of the air pressure sensor in a sealing way.
4. The intelligent measuring cylinder for teaching of claim 1, wherein: the angle acquisition unit is a gyroscope.
5. The intelligent measuring cylinder for teaching of claim 1, wherein: the measuring cylinder body is composed of a base and a cylinder body, and the information acquisition system is arranged in the base.
6. The intelligent measuring cylinder for teaching of claim 5, wherein: the base comprises a base cavity and a bottom plate, wherein the base cavity extends downwards from the bottom of the cylinder body in a sealing mode, the bottom plate is used for sealing the base cavity, and the circuit board integrated with the information acquisition system is arranged in the base cavity.
7. The intelligent measuring cylinder for teaching of claim 6, wherein: the power module comprises a lithium battery, a lithium battery charging management chip and a wireless charging module, and the lithium battery is arranged in the seat cavity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022209655545 | 2022-04-25 | ||
| CN202220965554 | 2022-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220525056U true CN220525056U (en) | 2024-02-23 |
Family
ID=89935442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320848885.5U Active CN220525056U (en) | 2022-04-25 | 2023-04-17 | Intelligent measuring cylinder for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220525056U (en) |
-
2023
- 2023-04-17 CN CN202320848885.5U patent/CN220525056U/en active Active
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