CN207574325U - Drosophila space treatment experimental provision - Google Patents

Abstract

The utility model relates to the field of aerospace instruments, in particular to a fruit fly space carrying experiment device, which includes four parts: a general-purpose box with characteristics such as heat insulation and pressure resistance, a space carrying life support system for fruit flies, Drosophila spatial behavior research monitoring system and environmental monitoring control module. The equipment can meet the requirements of vibration isolation, heat insulation, and pressure resistance, and can withstand the harsh mechanical environment during spacecraft launch and recovery; it can provide suitable conditions such as temperature, humidity, oxygen supply, and light for the growth and reproduction of fruit flies, meeting the requirements of The basic needs for the growth of fruit flies; space behavior research can be carried out on the movement ability, learning and memory ability, courtship behavior and circadian rhythm cycle of fruit flies carried by spaceflight; the modular design and digital operating system are adopted to make all functions work together. Collaboration can complete tasks such as monitoring, control and data transmission. The successful development of the utility model will provide technical support conditions for in-depth research on space life science, and has very important scientific significance and practical application value for promoting human beings to carry out space science experiment research.

Description

Drosophila Spaceborne Experimental Device

technical field

The present invention and the field of aerospace instruments, in particular, relate to a fruit fly space-borne experimental device, which can meet the basic life support functions required by the growth and development of fruit flies in space, and can be used to carry out research on the space behavior and genetics of fruit flies .

Background technique

With the rapid development of human aerospace technology, entering and developing the outer space of the earth orbit has become an inevitable development direction for human beings to explore the mysteries of the universe, obtain more natural resources, and expand living space. Space life science research is closely related to human production and life. It is an important part of the development of manned spaceflight and the basis for the development of manned spaceflight. Its potential social and economic benefits have become key research areas in many countries.

my country's aerospace life science research is biased towards space breeding, especially the space breeding of plants and microorganisms, which is related to its small size, strong survivability, high mutation rate and easy loading. Compared with foreign countries, there are fewer living organisms. This may be related to the large space required for carrying live animals and the relatively harsh requirements for the living environment. How to provide biological samples with a good environment suitable for survival and growth (relatively stable temperature, humidity, sufficient light, etc.); how to minimize the impact of the non-space environment on the experiment and reduce the noise caused by itself or the installation location and vibration, to avoid damaging the microgravity environment of space; how to ensure that biological samples and their installation structures can adapt to the harsh mechanical environment during launch and recovery, etc. These are all technical problems that need to be solved urgently.

The present invention will design a fruit fly spaceflight carrying device, the experimental device will be designed according to the requirements of aerospace instruments and the characteristics of biology, space microgravity, and space radiation, and provide the basic life support functions required by the growth and development of fruit flies , can carry out research on Drosophila spatial behavior and genetics.

Contents of the invention

1. Purpose of the invention:

The present invention is mainly based on the requirements of aerospace instruments and the characteristics of biology, space microgravity, and space radiation, and designs an experimental platform that meets the needs of fruit fly space growth and development and can carry out research on fruit fly space behavior and genetics. The successful development of the invention will provide technical support conditions for in-depth research on space life science, and has very important scientific significance and practical application value for promoting human beings to carry out space science experiment research.

2. Technical solution:

The present invention is mainly designed into four parts, which are: a general-purpose box with characteristics such as heat insulation and pressure resistance, a life support system for fruit flies in spaceflight, a space behavior research and monitoring system for fruit flies, and an environmental monitoring control module.

(1) The general-purpose box with the characteristics of heat insulation and pressure resistance adopts a sandwich structure. The inner layer is an airtight pressure-resistant box, wrapped with aerospace multi-layer heat insulation film for heat insulation, and the outer layer consists of a mounting substrate and five cover plates. Composition, and a unified and standardized interface is provided outside the box, radiation detectors, distributed temperature, humidity, light, oxygen supply, microgravity intelligent sensing units and camera components are installed inside the box. (2) Drosophila's spaceborne life support system includes temperature control system, lighting system, humidity and oxygen supply system. (3) Research on Drosophila Spatial Behavior The monitoring system includes a Drosophila behavior monitor and corresponding storage devices. (4) The environmental monitoring and control module mainly includes a distributed control system, temperature, humidity, light, oxygen supply control software, and a video monitoring system.

3. Beneficial effects:

(1) The general-purpose box with characteristics of heat insulation and pressure resistance can meet the requirements of vibration isolation, heat insulation, and pressure resistance, and can withstand the harsh mechanical environment during spacecraft launch and recovery. (2) Drosophila's spaceborne life support system can provide suitable conditions such as temperature, humidity, oxygen supply and light for the growth and reproduction of Drosophila, and meet the basic needs of Drosophila growth. (3) Drosophila spatial behavioral research monitoring system can carry out spatial behavioral research on the movement ability, learning and memory ability, courtship behavior and circadian activity rhythm cycle of fruit flies carried by spaceflight. (4) The environmental monitoring and control module adopts a modular design and a digital operating system, so that various functions can work together to complete tasks such as monitoring, control, and data transmission.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

In Fig. 1, 1. A general-purpose box with characteristics such as heat insulation and pressure resistance, 2. The life support system carried by the space flight of the fruit fly, 3. The space behavior research monitoring system of the fruit fly, 4. The environmental monitoring control module, 5. Airtight pressure-resistant box, 6. Substrate, 7. Thermal insulation support structure, 8. Semiconductor cooler, 9. Interface, 10. Radiation detector, 11. Distributed intelligent sensing unit, 12. Camera element, 13. Temperature Control system, 14. Lighting system, 15. Humidity and oxygen supply system.

In Fig. 2, 16. a culture unit, 17. an infrared emission tube, and 18. a miniature infrared camera element.

Detailed ways

The present invention is mainly designed into four parts, which are: a general-purpose box 1 with characteristics such as heat insulation and pressure resistance, a space-borne life support system 2 for fruit flies, a space behavior research monitoring system 3 for fruit flies, and an environmental monitoring control module 4 .

The general-purpose box 1 with the characteristics of heat insulation and pressure resistance adopts a sandwich structure. The inner layer is an airtight pressure-resistant box 5 that has passed the mechanical environment test, and is wrapped with aerospace multi-layer heat insulation film for heat insulation; the outer layer is made of a mounting substrate. 6 and five cover plates, the airtight pressure-resistant box is fixed on the installation substrate 6 by the heat-insulating support structure 7, and the semiconductor refrigerator 8 is placed between the two, and the two-way operation of the semiconductor refrigerator is enough Realize the two-way active temperature control of the inner layer; and the box is equipped with a unified and standardized interface 9, and a radiation detector 10 is placed in the box, which can record and store data such as radiation particles and radiation doses, and various temperature, humidity, and light levels are placed in the box. , oxygen supply, microgravity distributed intelligent sensing unit 11, can respectively detect parameters such as temperature, humidity, light, oxygen supply, microgravity changes in the box, and install the camera element 12 in the box to monitor the situation in the box. In addition, some interfaces are reserved for future functional upgrades and transformations to expand functional application areas. The shape, size and weight of the box can be adjusted according to the requirements of the spacecraft.

The life support system 2 carried by the spaceflight of the fruit fly is composed of a temperature control system 13 , an illumination system 14 , and a humidity and oxygen supply system 15 .

The temperature control system 13 is composed of three parts: a temperature sensor, a temperature control circuit, and a temperature control actuator. A temperature sensor is placed in the box. After the temperature sensor collects and amplifies the temperature signal, it is transmitted to the control system, and the control system outputs the relevant control quantity. The semiconductor refrigerator 8 is used as the temperature control actuator; the control quantity controls the on-off of the relay. and the on-off time of the switch tube, so as to control the actuator, to heat or cool the incubator, to achieve the purpose of temperature control; the control system controls two relays, one controls the on-off of the temperature control circuit, and the other controls the through-execution The direction of the current of the device, that is, to control heating or cooling. The temperature range of this experimental cabin is set at 15ºC ~ 35ºC, with an accuracy of ±1ºC.

The lighting system 14 adopts high luminous efficiency and light source grid lattice distribution of different colors; the color of light, light source distribution, light wavelength, intensity and flicker frequency can be controlled through software settings; Create a uniformly distributed light condition, the illuminance is adjustable in the range of 0-10000Lux, and the wavelength is adjustable in the range of 380nm-780nm; the light control drive circuit realizes the simulated light change, and it controls the signal by the timer to realize the control function.

The humidity and oxygen supply system 15 is driven by a motor to provide water and oxygen in the incubator at regular intervals. The power supply end of the motor driver is connected to a constant current circuit to control the driving current of the motor. The control pulse or control signal of the motor is provided by the control system . Ensure that the oxygen content in the incubator is not lower than 20.95% of the earth's air, the humidity is 40%~80%RH, and the humidity accuracy is ±5.0%.

Drosophila spatial behavior research monitoring system 3 includes multiple groups of Drosophila behavior monitors and corresponding storage devices. The fruit fly behavior monitor is mainly equipped with four pairs of infrared emission tubes 17 and corresponding storage devices evenly around a culture unit 16 that can replace the medium, and is used to record the number of activities of fruit flies. Two miniature infrared tubes are installed on the top. The camera element 18 is used to record the behavior of the fruit fly and is equipped with a corresponding storage device.

Environmental monitoring and control module 4: use the distributed control system to collect relevant data inside the equipment in real time and accurately. The system collects environmental parameters through various distributed intelligent sensing units 11 at the front end, and transmits the heterogeneous data to the preprocessing system of the control center. monitoring and regulation. Researchers can also use the video monitoring unit 12 in the collection system to grasp the on-site environmental conditions in real time, and provide auxiliary decision-making means for information collection.

Claims (10)

1. a kind of drosophila space treatment experimental provision, it is characterised in that：Include the universal babinet of the characteristics such as adiabatic and pressure resistance （1）, the spaceship-carried life-support systems of drosophila（2）, the spatial behavior research monitoring system of drosophila（3）, environmental monitoring control Molding block（4）.

2. drosophila space treatment experimental provision as described in claim 1, it is characterised in that：The characteristics such as the adiabatic and pressure resistance Universal babinet（1）Using sandwich, the airtight pressure-resistant babinet that mechanical environment was tested is passed through in internal layer selection（5）, package boat Its multilayer insulation film is thermally shielded；Outer layer is by floor installation substrate（6）It is formed with five pieces of cover boards, airtight pressure resistance babinet is by thermal insulation Support construction（7）It is fixed on installation base plate（6）On, while by semiconductor cooler（8）It is placed between the two, babinet is equipped with unified With the interface of standardization（9）.

3. the universal babinet of the characteristics such as drosophila space treatment experimental provision as described in claim 1, the adiabatic and pressure resistance （1）, the interior placement radiation detector of case（10）, can with data such as record storage radiating particle and dose of radiations, placement temperature in case, Humidity, illumination, oxygen supply, microgravity distributed intelligence perceive unit（11）, can find out the temperature inside the box, humidity, illumination, oxygen supply, Microgravity situation, and photographing element is installed in the case（12）, situation in monitoring box.

4. drosophila space treatment experimental provision as described in claim 1, it is characterised in that：The spaceship-carried life of the drosophila Safeguards system（2）By temperature control system（13）, illumination system（14）And humidity and oxygen system（15）Composition.

5. drosophila space treatment experimental provision as described in claim 1, the spaceship-carried life-support systems of the drosophila（2） Middle temperature control system（13）It is made of temperature sensor, temperature control circuit, temperature control executive component three parts, temperature range is set as 15oC ~ 35oC, precision are ± 1oC.

6. drosophila space treatment experimental provision as described in claim 1, the spaceship-carried life-support systems of the drosophila（2） Middle illumination system（14）It is distributed using the light source the Mesh Point Battle that luminous efficiency is high, different colours shine；It can by software setting To control the color of light, distribution of light sources, the wavelength of light, intensity and flicker frequency；Light source is inside device in inner wall uniform layout An equally distributed illumination condition is built, illumination is adjustable in the range of 0~10000Lux, and wavelength is in 380nm~780nm ranges It is interior adjustable；Illumination control driving circuit realizes illumination simulation variation, it realizes control function by timer control signal.

7. drosophila space treatment experimental provision as described in claim 1, the spaceship-carried life-support systems of the drosophila（2） Middle humidity and oxygen system（15）The interior oxygen content for being not less than earth air 20.95% of control incubator, 40% ~ 80%RH of humidity, Humidity precision ± 5.0%.

8. drosophila space treatment experimental provision as described in claim 1, it is characterised in that：The spatial behavior of the drosophila is ground Study carefully monitoring system（3）Including drosophila behavior monitoring device and corresponding storage device.

9. drosophila space treatment experimental provision as described in claim 1, the spatial behavior research monitoring system of the drosophila （3）Middle drosophila behavior monitoring device includes the culture unit of replaceable culture medium（16）, it is uniformly red equipped with four pairs around culture units Outer transmitting tube（17）And corresponding storage device, top are equipped with 2 miniature infrared photography elements（18）.

10. drosophila space treatment experimental provision as described in claim 1, it is characterised in that：The environmental monitoring control module （4）Using Distributed Control System, each environmental parameter is carried out accurately to monitor and regulate and control.