Teaching illumination culture device with remote experiment function
By designing a teaching light-based culture device with remote experimental capabilities, integrating sensor and control modules, the problem of existing biological culture devices being limited in function, large in size, and high in cost is solved. It enables precise control of culture conditions and remote experimental teaching, making it suitable for the needs of middle school biology teaching.
Patent Information
- Application Number
- CN202422459497.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-10-12
AI Technical Summary
Existing biological culture devices are mainly focused on cultivation, are large in size and expensive, lack automatic detection functions, and cannot achieve precise control of more experimental conditions and remote experimental functions, thus failing to meet the needs of secondary school biology teaching.
A teaching light-based culture device with remote experimental capabilities was designed, comprising a light-based incubator, a cloud platform, and a user's mobile phone. It integrates a sensor module, a control module, a sample addition-sampling module, and an illumination module. The device enables precise control and remote operation of the culture conditions through a programmable logic controller (PLC) and a cloud platform.
It enables automatic detection of more experimental data, reduces operation time, is suitable for middle school students to carry out a wide variety of scientific experiments, supports remote experimental teaching, and enhances the flexibility and convenience of teaching.
Smart Images

Figure CN223620397U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to biology teaching instruments for middle schools, specifically to a light-based culture device for teaching with remote experimental function. Background Technology
[0002] High school biology teaching frequently involves experiments requiring the cultivation of plants, microorganisms, and animals. Currently, the main related products are biochemical incubators, light incubators, and artificial climate chambers. All three can cultivate experimental materials at specified temperatures, with the latter two also providing specific lighting for organisms. However, none of these can remotely monitor and control the cultivation environment (temperature, light intensity, etc.) within the incubator, nor can they precisely control the light frequency, oxygen concentration, and carbon dioxide concentration within the cultivation chamber. Furthermore, all three use alternating current, are large in size, and expensive, making it difficult to relocate them or add / remove sensors or other expandable devices according to teaching needs. Combining direct current (DC) power with Internet of Things (IoT) technology and a miniaturized design can effectively solve these problems.
[0003] Meanwhile, due to limited in-class hands-on time, it is difficult for middle school students to complete multiple sampling operations at specified times or under specified conditions during experiments. This problem can be solved using remote experimental teaching technology. Remote experimental teaching refers to using technologies such as remote data and image and sound acquisition, remote control technology, computer simulation technology, and virtual reality on the Internet, allowing experimenters to perform experiments and observe from remote computer devices. The results obtained are completely equivalent to the data obtained locally, just like operating real experimental equipment. In the post-pandemic era, the combination of online and offline education has received increasing attention, but only one case of remote experimental teaching device suitable for middle schools has been reported: the "520 Remote Chemistry Laboratory." There are currently no reports on remote experimental devices for biology subjects.
[0004] In summary, existing biological culture devices are mainly focused on cultivation, and are large in size, expensive, lack automatic detection functions, and cannot achieve precise control of more experimental conditions and remote experimental functions. They cannot meet the needs of fully carrying out "inquiry-based teaching" in middle school biology teaching. Summary of the Invention
[0005] To address the problems existing in the prior art, this utility model proposes a teaching light-based cultivation device with remote experimental function.
[0006] This utility model relates to a teaching light-based culture device with remote experimental function, comprising a light-based culture chamber, a cloud platform, and a user's mobile phone. The light-based culture chamber includes an outer shell, a control panel, a light-based culture chamber, a lighting module, a control module, culture flasks, a temperature and ventilation module, a sample feeding / sampling module, and a sensor module. The control panel is mounted on the outside of the outer shell, forming the light-based culture chamber. Culture flasks are located within the light-based culture chamber and are used to culture organisms. The lighting module includes a lighting device and an illuminance adjustment device. The control module includes an information input interface, a programmable logic controller (PLC), an instruction output interface, a control switch, and a signal receiver / transmitter. The illuminance adjustment device of the lighting module and the control switch of the control module are mounted on the control panel. The temperature and ventilation module includes a heating device and a cooling and ventilation device, which can be located on the bottom, side, or top of the light-based culture chamber. The sample feeding / sampling module includes a first storage tank, a second storage tank, a first feed pipe, and a second feed pipe. The system comprises a first discharge pipe, a second discharge pipe, a sampling pipe, a sample outlet pipe, a sample chamber, a first peristaltic pump, a second peristaltic pump, a third peristaltic pump, a first solenoid valve, and a second solenoid valve; a first storage tank and a second storage tank are located inside or outside the light-illuminated culture chamber and are connected to the culture flasks sequentially via the first and second feed pipes, the first and second peristaltic pumps (or the first and second solenoid valves), and the first and second discharge pipes, respectively; the sample chamber is located inside or outside the light-illuminated culture chamber and is connected to the culture flasks sequentially via the sample outlet pipe, the third peristaltic pump, and the sampling pipe; a sensor module is located inside the culture chamber and includes a gas phase sensor group and a liquid phase sensor group; a control module is sequentially connected to the user's mobile phone via a wireless network and a cloud platform; it is connected to the sensor group via a cable to read culture data; and it is connected to the lighting module, the temperature and ventilation module, and the sample addition-sampling module via a cable to control the light frequency, light intensity, temperature, and ventilation inside the light-illuminated culture chamber, and to perform sample addition and sampling operations.
[0007] The outer shell of the light incubator is made of rigid materials such as engineering plastics and aluminum alloys, and an insulation layer can be added to the inside. The inside of the light incubator is a light culture chamber. One or more culture bottles are placed in the culture chamber to culture organisms. The culture bottles can be existing culture containers such as test tubes, small beakers, conical flasks, petri dishes, tissue culture bottles, hydroponic bottles, and small flower pots, or they can be self-made special bottle-shaped or box-shaped culture bottles. The cultured organisms can be individual plants, tissues, or organs, or microorganisms or small animals. Furthermore, special culture racks can be installed on the culture bottles for placement.
[0008] The lighting module uses multiple sets of high-brightness LEDs as lighting devices. These devices can be located on the top or side wall of the culture chamber, or outside the culture chamber, illuminating through transparent materials such as glass. Each set of LEDs has a different emission frequency, and the emitted light colors include, but are not limited to, red, blue, purple, and white light. Each set of LEDs is powered by the control module via cables and connected in parallel. Each set of LEDs has an illuminance adjustment device connected within its circuit. The brightness adjustment device uses PWM technology to adjust the light intensity. The control switch is connected to the control module via a cable. The control module can automatically control the opening and closing of the LED groups. The corresponding LED groups can also be manually controlled by the signals transmitted through the control switch.
[0009] The temperature control and ventilation module includes a heating device and a cooling and ventilation device; the heating device and the cooling and ventilation device can be located at the bottom or side wall of the light-illuminated culture chamber; the heating device heats the light-illuminated culture chamber through the thermal effect of electric current; the cooling and ventilation device ventilates and cools the light-illuminated culture chamber through an exhaust fan; furthermore, a refrigeration system can be added to the cooling and ventilation device to enhance the cooling effect.
[0010] The first and second storage tanks of the sampling-addition module can store liquids such as water, nutrient solutions, and pharmaceutical solutions, or gases such as oxygen, carbon dioxide, and nitrogen. The first and second peristaltic pumps can draw liquids or gases from the first and second storage tanks through the first and second feed pipes, respectively, and add them to the culture flasks through the first and second discharge pipes. Depending on the experimental needs, the first and second storage tanks can store both liquids or gases, or one can store liquid and the other gas. The third peristaltic pump is connected to the culture flask through a sampling pipe and to the sample chamber through a sample discharge pipe, which can draw liquid or gas samples from the culture flasks into the sample chamber. The first, second, and third peristaltic pumps are connected to the control module through cables, and the control module is connected to the user's mobile phone through a cloud platform. The user can set the control logic of the control module through their mobile phone to trigger specified operations for a specified duration, so as to achieve timed and quantitative or quantitative gas, liquid, and sample replenishment to the culture flasks under specified conditions. Furthermore, if the fluid pressure stored in the first and second storage tanks is greater than atmospheric pressure, the first and second peristaltic pumps can be replaced with the first and second solenoid valves.
[0011] The sensor module includes a gas phase sensor group and a liquid phase sensor group. The gas phase sensor group consists of a set of sensors that detect light and air data, and may include several or all of the following: light intensity sensor, temperature sensor, humidity sensor, carbon dioxide concentration sensor, and oxygen concentration sensor. Its probe is located in the light incubation chamber and continuously detects culture data. The liquid phase sensor group consists of a set of sensors that detect solution data, and may include several or all of the following: temperature sensor, conductivity sensor, soil moisture sensor, pH sensor, nitrogen salt sensor, phosphate sensor, and potassium salt sensor. Its probe is placed in the culture medium or culture solution such as soil in the culture bottle and continuously detects culture data. Furthermore, the probes of one or more specified sensors can be installed in the sample chamber, and the corresponding data can be detected only after sampling. The sensor module is connected to the control module via a cable. The control module is connected to the user's mobile phone via a cloud platform. The user's mobile phone can read the culture data in real time.
[0012] The control module includes a programmable logic controller (PLC), control switches, and a signal receiver / transmitter. The PLC is a mature, existing product with built-in logic operation and storage functions, and is equipped with a cloud platform and control app. Cables from the information input interface connect to the sensor module; cables from the instruction output interface connect to the lighting module, temperature control and ventilation module, and sample addition / sampling module, forming parallel execution circuits. Cables from these circuits also connect to the control switches. The control switches are momentary switches, used to control the opening and closing of each execution circuit, enabling manual control. Pre-set control logic controls illumination, heating, cooling, ventilation, and sample addition. The system enables automatic control of operations such as sampling; the control logic includes querying control conditions and controlling the execution circuit; the control conditions include time, data collected by sensors, and the working status of each execution circuit; it can control the closing, opening, and closing of the execution circuit for a specified duration before opening; it receives and transmits wireless signals through a signal receiver and transmitter to connect to the cloud platform, and further connects to the user's mobile phone with the control app installed; the user's mobile phone can read the physicochemical data transmitted by the sensors and the working status of the execution circuit; retrieve historical data; set control logic; and it can also control operations such as lighting, adjusting temperature, adding samples, and sampling by controlling the opening (closing) of related circuits, thereby realizing remote experiments.
[0013] Furthermore, this device can be equipped with a built-in battery to increase its convenience and portability; when an external power source is available, the external power source can be used to power the battery; when no external power source is available, the battery can be used to power the device.
[0014] Furthermore, the sampling-addition module of this device can be equipped with a fourth peristaltic pump, a first drain pipe, a second drain pipe, and a waste liquid cylinder. One end of the first drain pipe is connected to the sample chamber, and the other end is connected to the feed end of the peristaltic pump. One end of the second drain pipe is connected to the discharge end of the peristaltic pump, and the other end is connected to the waste liquid cylinder. Some liquid phase sensors that are not suitable for long-term immersion in a liquid environment are installed in the sample chamber. The control module controls the third and fourth peristaltic pumps to start sequentially for a specified duration, transporting the culture medium in the culture bottle to the sample chamber for detection, and then discharging it into the waste liquid cylinder, so as to realize multiple sampling and detection of the culture medium.
[0015] Furthermore, the sample addition-sampling module of this device can be equipped with more sets of storage tanks, peristaltic pumps (solenoid valves), and feed and discharge pipes to enable the addition of more types of liquids or gases to the culture flasks during experiments.
[0016] Furthermore, the control module of this device may also include a display; the display can directly show the sensor's detection data and the operating status of the control switch.
[0017] Furthermore, a camera can be installed in the light-incubation chamber of this device to record the growth status of the cultured organisms and other experimental phenomena in real time.
[0018] Advantages of this utility model:
[0019] Compared to traditional devices, this device adds a sensor module, enabling automatic detection of more experimental data, making it more suitable for middle school students to conduct a wide variety of scientific experiments. This device uses a programmable logic controller (PLC), cloud platform, and user's mobile phone to logically control the cultivation conditions and sample addition and removal operations, greatly saving operation time and reducing physical labor, making it more suitable for middle school students with heavy academic burdens and little free time. Furthermore, this device can remotely read cultivation data and control experimental operations, thus realizing remote experimental teaching. Spatially, it provides convenience for cross-regional experimental teaching, and temporally, it allows teachers and students to continue experiments after school and during holidays. Additionally, this device can be powered by a built-in rechargeable battery, making it easy for teachers to move it to different classrooms for teaching. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of one embodiment of a teaching light-based cultivation device with remote experimental function according to this utility model;
[0021] Figure 2 This is a schematic diagram of the internal structure of a light-incubator in an embodiment of a teaching light-incubation device with remote experimental function according to this utility model;
[0022] Figure 3This is a schematic diagram of the control module of one embodiment of a teaching light-based cultivation device with remote experimental function according to this utility model;
[0023] Figure 4 This is a schematic diagram of the sample addition and sampling module of an embodiment of a teaching light-based cultivation device with remote experimental function according to this utility model;
[0024] Figure 5 This is a schematic diagram of the lighting module of one embodiment of a teaching light cultivation device with remote experimental function according to this utility model;
[0025] Figure 6 This is a schematic diagram of the temperature control and ventilation module of one embodiment of a teaching light-based cultivation device with remote experimental function according to this utility model;
[0026] Figure 7 This is a schematic diagram of a sensor module of a teaching light-based cultivation device with remote experimental function according to an embodiment of the present invention;
[0027] Figure 8 This is a schematic diagram of a gas phase sensor group of an embodiment of a teaching light-based cultivation device with remote experimental function according to this utility model; Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0029] like Figure 1 , Figure 2 , Figure 4As shown, the remote experimental device for teaching with seed culture function in this embodiment includes: a light incubator 3, a cloud platform 8, and a user mobile phone 11; wherein the light incubator 3 includes a signal receiver and transmitter 1, a lighting device 2, an illuminance adjustment device 4, a control switch 5, a control panel 36, a light culture chamber 45, a light culture chamber door 6, a power cord 7, and a light incubator shell 9; wherein the illuminance adjustment device 4 and the control switch 5 are located on the control panel 36, and the control panel 36 is located on the light culture chamber door 6; the interior of the light incubator 3 includes a gas phase sensor group 12, a liquid phase sensor group 20, a cooling and ventilation device 10, a heating device 22, a heating device partition 21, a control module 13, a peristaltic pump group 46, a first storage tank 16, a second storage tank 31, a sample chamber 14, and a culture bottle 19; the peristaltic pump group 46 includes a first peristaltic pump 49 and a second peristaltic pump 48. The third peristaltic pump 47; the control module 13 is connected to the gas phase sensor group 12 and the liquid phase sensor group 20 via cables to form a detection circuit; it is also connected to the lighting device 2, the cooling and ventilation device 10, the heating device 22, the first peristaltic pump 49, the second peristaltic pump 48, and the third peristaltic pump 47 via cables to form an execution circuit; it is connected to the control switch 5 via cables to form a local control circuit; it receives and sends wireless network signals through the signal receiver and transmitter 1, and is connected to the cloud platform 8 and the user's mobile phone 11 in sequence to form a remote control circuit; the detection data can be read through the user's mobile phone 11; furthermore, the control logic of the programmable logic controller 30 can be set to realize the logic control of the circuit; through local control, remote control, and logic control execution circuit, the light, temperature, ventilation, and sample addition and removal in the culture bottle can be controlled for the light culture chamber, realizing remote experimental teaching.
[0030] like Figure 3 , Figure 1 As shown: Control module 13 includes a signal receiver / transmitter 1, an information input interface 28, an instruction output interface 25, and a programmable logic controller 30, all connected to each other via cables. The programmable logic controller 30 is an existing mature product with built-in IoT functionality, and has a self-developed cloud platform and a user app for displaying detection data and controlling execution circuits. The user app is installed on the user's mobile phone 11. The programmable logic controller 30 is connected to a control switch 5 via a first cable 24. The control switch 5 is a group of multiple momentary switches, each connected to the programmable logic controller 30 via wires in the first cable 24. The momentary switch signals of the control switch 5 can be converted into instructions from the programmable logic controller 30 to control the opening or closing of the execution circuits, achieving local control. The user's mobile phone 11 can display sensor detection data through the app; display the working status of each group of circuits; control their opening and closing to achieve remote control; edit the conditions required for the opening and closing of the circuits for automatic control; the control instructions of the control switch 5 and the control instructions of the control app mutually recognize each other.
[0031] like Figure 4As shown: The sampling-addition module includes a first peristaltic pump 49, a second peristaltic pump 48, a third peristaltic pump 47, a first feed pipe 15, a second feed pipe 30, a first storage tank 16, a second storage tank 31, a first discharge pipe 32, a second discharge pipe 33, a sampling pipe 35, a sample outlet pipe 29, and a sample chamber 14. The storage tanks and sample chambers are made of materials such as plastic or aluminum and can be used to store liquids or gases in a sealed manner. The peristaltic pumps can move the liquid or gas from the feed end to the discharge end by regularly and repeatedly squeezing the flexible tube inside, thereby realizing the addition or sampling. The added material and the sampled item can be either liquid or gas. The feed pipe and discharge pipe can be flexible tubes such as silicone tubes or rigid tubes such as PVC tubes. The feed end of the first peristaltic pump 49 is connected to the first storage tank 16 through the first feed pipe 15. The material end is connected to the culture bottle 19 through the first discharge pipe 32, and can quantitatively deliver the liquid (or gas) in the first storage tank 16 to the culture bottle 19 under the control of the control module 13; the feed end of the second peristaltic pump 48 is connected to the second storage tank 31 through the second feed pipe 30, and the discharge end is connected to the culture bottle 19 through the second discharge pipe 33, and can quantitatively deliver the liquid (or gas) in the second storage tank 30 to the culture bottle 19 under the control of the control module 13; the sampling tube 35 is immersed in the liquid or gas to be sampled in the culture bottle 19; the feed end of the third peristaltic pump 47 is connected to the sampling tube 35, and the discharge end is connected to the sample chamber 14 through the sample outlet pipe 29, and can quantitatively deliver the liquid (or gas) in the culture bottle 19 to the sample chamber 14 for storage under the control of the control module 13.
[0032] like Figure 5 As shown: The lighting module consists of a lighting device 2, an illuminance adjustment device 4, a first cable 24, and a second cable 23; the lighting device 2 uses multiple high-brightness LEDs, which are divided into multiple groups according to different light emission frequencies, such as red light group, blue light group, purple light group, and white light group; the illuminance adjustment device 4 contains multiple knobs, the number of which is the same as the number of LED light groups, and the light intensity of each group of LEDs can be adjusted by rotating the knobs using PWM.
[0033] like Figure 6 As shown: The temperature control and ventilation module includes a cooling and ventilation device 10, a heating device 22, a third cable 17, and a fourth cable 26; the cooling and ventilation device 10 includes a refrigeration system and an exhaust fan, located on the side wall of the light-illuminated culture chamber 45, and can cool and ventilate the light-illuminated culture chamber; the heating device 22 irradiates the bottom or side wall of the light-illuminated culture chamber 45, and uses the thermal effect of electric current to generate heat; the control module 13 is connected to the cooling and ventilation device 10 via the third cable 17, and to the heating device 22 via the fourth cable 26; the control module 13 can control cooling and ventilation or heating.
[0034] like Figure 7As shown: The sensor module includes a gas phase sensor group 12 and a liquid phase sensor group 22; the gas phase sensor group 12 is a collection of sensors for light intensity, temperature, humidity, etc., and is connected to the control module 13 via the fifth cable 27; the liquid phase sensor group 22 can be an existing integrated soil sensor, which can detect several or all of the values of temperature, humidity, conductivity, pH, nitrogen salt content, phosphate content, potassium salt content, etc. in soil or aqueous solution, and is connected to the control module 13 via the sixth cable 28; the data detected by the sensor module is displayed on the user's mobile phone 11 via the control module 13.
[0035] like Figure 8 As shown: The gas phase sensor group 22 includes a housing 44, a sensor fixing slot 38, a light intensity sensor 43, a temperature sensor 39, a humidity sensor 40, a carbon dioxide concentration sensor 41, and an oxygen concentration sensor 42; the housing 44 is mainly made of waterproof, rust-free, and corrosion-resistant natural or synthetic materials, and has several ventilation windows 37 engraved on it, which are covered with waterproof and breathable cloth, paper, or other natural or synthetic materials; the temperature sensor 39, humidity sensor 40, carbon dioxide concentration sensor 41, and oxygen concentration sensor 42 are fixed in the sensor fixing slot 38; the probe of the light intensity sensor 43 is fixed on the surface of the housing 44.
[0036] Finally, it should be noted that the purpose of disclosing the embodiments is to help further understand this utility model. However, those skilled in the art will understand that various substitutions and modifications are possible without departing from the spirit and scope of this utility model and the appended claims. Therefore, this utility model should not be limited to the content disclosed in the embodiments, and the scope of protection of this utility model is defined by the scope of the claims.
Claims
1. A teaching light-based incubation device with remote experimental capabilities, characterized in that, This includes a light incubator, a cloud platform, and the user's mobile phone; The light incubator includes an outer shell, control panel, light incubation chamber, lighting module, control module, culture flasks, temperature and ventilation module, sample feeding / sampling module, and sensor module. The control panel is mounted on the outside of the outer shell, forming the light incubation chamber. The culture flasks are located within the light incubation chamber and are used to culture organisms. The lighting module includes a lighting device and an illuminance adjustment device. The control module includes an information input interface, a programmable logic controller, an instruction output interface, a control switch, and a signal receiver / transmitter. The illuminance adjustment device of the lighting module and the control switch of the control module are mounted on the control panel. The temperature and ventilation module includes a heating device and a cooling and ventilation device, which can be located on the bottom, side, or top of the light incubation chamber. The sample feeding / sampling module includes a first storage tank, a second storage tank, a first feed pipe, a second feed pipe, a first discharge pipe, and a second discharge pipe. The system includes a sampling tube, a sample outlet tube, a sample chamber, a first peristaltic pump, a second peristaltic pump, and a third peristaltic pump; a first storage tank and a second storage tank located inside or outside the light-illuminated culture chamber, connected to the culture flasks sequentially via the first and second feed pipes, the first and second peristaltic pumps, and the first and second discharge pipes, respectively; a sample chamber located inside or outside the light-illuminated culture chamber, connected to the culture flasks sequentially via the sample outlet tube, the third peristaltic pump, and the sampling tube; a sensor module located inside the light-illuminated culture chamber, including a gas phase sensor group and a liquid phase sensor group; a control module connected to the user's mobile phone sequentially via a wireless network and a cloud platform; a cable connected to the sensor group to read culture data; and a cable connected to the lighting module, temperature control and ventilation module, and sample addition-sampling module to control the light frequency, light intensity, temperature, and ventilation within the light-illuminated culture chamber, and to perform sample addition and sampling operations.
2. The teaching light-based cultivation device with remote experimental function as described in claim 1, characterized in that, The lighting module uses multiple sets of high-brightness LEDs as lighting devices; each set of LEDs has a different emission frequency, and the emitted light colors include, but are not limited to, red, blue, purple, and white light; each set of LEDs is powered by the control module through cables and is connected in parallel with each other; each set of LEDs has an illuminance adjustment device connected in its circuit; the brightness adjustment device uses PWM technology to adjust the light intensity.
3. The teaching light-based cultivation device with remote experimental function as described in claim 1, characterized in that, The temperature control and ventilation module includes a heating device and a cooling and ventilation device; the heating device heats the light-illuminated culture chamber through the thermal effect of electric current; the cooling and ventilation device ventilates and cools the light-illuminated culture chamber through an exhaust fan; furthermore, a refrigeration system can be added to the cooling and ventilation device to enhance the cooling effect.
4. The teaching light-based cultivation device with remote experimental function as described in claim 1, characterized in that, The first and second storage tanks of the sampling-addition module can store clean water, nutrient solution, drug solution, or oxygen, carbon dioxide, and nitrogen. The first and second peristaltic pumps can respectively draw liquid or gas from the first and second storage tanks through the first and second feed pipes and add it to the culture flask through the first and second discharge pipes. The third peristaltic pump is connected to the culture flask via a sampling tube and to the sample chamber via a sample outlet tube, allowing it to extract liquid or gas samples from the culture flask into the sample chamber. The first, second, and third peristaltic pumps are connected to the control module via cables, and the control module is connected to the user's mobile phone via a cloud platform. The user's mobile phone can be used to set the control logic of the control module to trigger a specified operation for a specified duration, so as to achieve timed and quantitative replenishment of gas, liquid, and sampling of the culture flask or quantitative replenishment of gas, liquid, or sampling under specified conditions. Furthermore, if the fluid pressure stored in the first and second storage tanks is greater than atmospheric pressure, the first and second peristaltic pumps can be replaced with the first and second solenoid valves.
5. The teaching light-based cultivation device with remote experimental function as described in claim 1, characterized in that, The sensor module includes a gas phase sensor group and a liquid phase sensor group. The gas phase sensor group consists of a set of sensors that detect light and air data, and may include several or all of the following: light intensity sensor, temperature sensor, humidity sensor, carbon dioxide concentration sensor, and oxygen concentration sensor. Its probe is located in the light incubation chamber and continuously detects culture data. The liquid phase sensor group consists of a set of sensors that detect solution data, and may include several or all of the following: temperature sensor, conductivity sensor, soil moisture sensor, pH sensor, nitrogen salt sensor, phosphate sensor, and potassium salt sensor. Its probe is placed in the culture medium or culture solution in the culture flask and continuously detects culture data. Furthermore, the probes of one or more sensors can be installed in the sample chamber, and the corresponding data can be detected only after sampling. The sensor module is connected to the control module via a cable. The control module is connected to the user's mobile phone via a cloud platform. The user's mobile phone can read the culture data in real time.
6. The teaching light-based cultivation device with remote experimental function as described in claim 1, characterized in that, The control module includes a programmable logic controller (PLC), a control switch, and a signal receiver / transmitter. The PLC is a mature, existing product with built-in logic operation and storage functions, and is equipped with a cloud platform and control app. It connects to the sensor module via an information input interface and to the lighting module, temperature control and ventilation module, and sampling module via an instruction output interface, forming parallel execution circuits. It also connects to the control switch via a cable. The control switch is a momentary switch that can be used to control the opening or closing of each execution circuit, enabling manual control. Automatic control is achieved by controlling illumination, heating, cooling, ventilation, sampling, and extraction operations through pre-set control logic. The control logic includes querying control conditions and controlling the execution circuits. Control conditions include time, data collected by the sensors, and the operating status of each execution circuit. It can control the closing, opening, and closing of the execution circuits for a specified duration before opening. The signal receiver and transmitter receive and transmit wireless signals to connect to the cloud platform and the user's mobile phone with the control app installed. The user's mobile phone can read the physicochemical data transmitted by the sensor and the working status of the execution circuit; retrieve historical data; set control logic; and control the relevant execution circuit to control the illumination, adjust the temperature, add samples, and take samples, thereby realizing remote experiments.
7. The teaching light-based cultivation device with remote experimental function as described in claim 1, characterized in that, The light incubator can be equipped with a built-in battery to increase the convenience and portability of the device; when an external power source is available, the external power source should be used to power the battery; when no external power source is available, the battery should be used to power the device.
8. The teaching light-based cultivation device with remote experimental function as described in claim 1, characterized in that, The sample addition-sampling module can be equipped with a fourth peristaltic pump, a first drain pipe, a second drain pipe, and a waste liquid cylinder. One end of the first drain pipe is connected to the sample chamber, and the other end is connected to the feed end of the peristaltic pump. One end of the second drain pipe is connected to the discharge end of the peristaltic pump, and the other end is connected to the waste liquid cylinder. Some liquid phase sensors that are not suitable for long-term immersion in a liquid environment are installed in the sample chamber. The control module controls the third and fourth peristaltic pumps to start sequentially for a specified duration to transport the culture medium in the culture bottle to the sample chamber for detection, and then discharge it into the waste liquid cylinder to achieve multiple sampling and detection of the culture medium.
9. The teaching light-based cultivation device with remote experimental function as described in claim 1, characterized in that, The sample addition-sampling module can be equipped with more sets of storage tanks, peristaltic pumps, and feed and discharge pipes to enable the addition of more types of liquids or gases to the culture flasks during experiments.
10. The teaching light-based cultivation device with remote experimental function as described in claim 1, characterized in that, The control module may also include a display; the display can directly show the sensor's detection data and the operating status of the control switch.
11. The teaching light-based cultivation device with remote experimental function as described in claim 1, characterized in that, A camera can be installed in the light-inducing chamber to record the growth status of the cultured organisms and experimental phenomena in real time.