CN111579128B - Compost internal temperature field monitoring system - Google Patents
Compost internal temperature field monitoring system Download PDFInfo
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- CN111579128B CN111579128B CN202010482968.8A CN202010482968A CN111579128B CN 111579128 B CN111579128 B CN 111579128B CN 202010482968 A CN202010482968 A CN 202010482968A CN 111579128 B CN111579128 B CN 111579128B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/10—Thermometers specially adapted for specific purposes for measuring temperature within piled or stacked materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention provides a compost internal temperature field monitoring system, which comprises: the temperature measuring device comprises a plugging piece, at least one temperature measuring pipe unit and a control communication unit; two adjacent temperature measuring tube units are connected in a matching way through a first connecting port and a second connecting port; the second connecting port of the first temperature measuring pipe unit is connected with the first connecting port of the plugging piece in a matching way, and the first connecting port of the last temperature measuring pipe unit is connected with the second connecting port of the control communication unit in a matching way; the temperature measuring elements are used for acquiring the temperatures of different positions in the compost; the gravity sensor is used for acquiring the inclination angle of the control communication unit relative to the horizontal plane; the main control board sends the received temperatures and the inclination angles of different positions in the compost to the client side, so that the client side displays temperature fields generated according to the temperatures and the inclination angles of the different positions in the compost. The invention realizes the real-time and high-precision measurement of the temperature field in the compost and can accurately reflect the state in the compost fermentation process.
Description
Technical Field
The invention relates to the technical field of temperature monitoring, in particular to a compost internal temperature field monitoring system.
Background
The compost is a fertilizer pile in the composting process, the compost is an organic fertilizer which is formed by fermenting and decomposing organic matters such as various animal and plant residues and the like serving as main raw materials under the condition of certain artificial temperature and humidity by utilizing microorganisms widely existing in the nature, the content of nutrient substances is rich, the fertilizer efficiency is long and stable, the formation of a soil granular structure can be promoted, and the water-retaining, heat-preserving, air-permeable and fertilizer-retaining capacities of soil are improved.
Composting can be divided into two modes of general composting and high-temperature composting. The former has a lower fermentation temperature, and the latter has a higher fermentation temperature in the former stage. The common compost adopts the modes of simple mixing, manual stacking and natural fermentation, the required time is long, the foreign flavor is heavy during the fermentation period, and the nutrient loss is serious. The high-temperature compost is generally added with a leaven, and the high-temperature fermentation of the mixed raw materials promotes the rapid fermentation and decomposition of fermentation substrates and can kill germs, worm eggs and weed seeds in the fermentation substrates. Therefore, good conditions are created for the life activities of microorganisms in the composting process, and the key points are to accelerate the composting and obtain high-quality compost.
The compost fermentation is closely related to fermentation bacteria, temperature, humidity, time, fermentation substrate types, size, turning time and the like. Especially with respect to temperature, it is constantly changing throughout the composting process, and producers need to take different actions on the compost at different stages depending on the temperature. In the early-stage rapid fermentation process, the temperature continuously and rapidly rises and often exceeds 65 ℃, and if the stack is not turned, the fertilizer production quality is influenced. When the temperature in the pile exceeds 60 ℃, the pile needs to be turned, and when the temperature of the fertilizer pile exceeds the limit within about 10 hours, the pile needs to be turned again. The whole composting process needs to be turned over for 4 to 5 times. When the temperature in the fermentation pile is maintained at 45-50 ℃ and is not continuously raised, the pile turning interval time can be gradually prolonged for 5 days. Therefore, monitoring the temperature of the compost heap is an important process in the composting process. In the prior art, the temperature in the compost is calculated by measuring the surface temperature of the compost, but the influence of the environmental temperature is large.
Disclosure of Invention
Based on the above, the invention aims to provide a compost internal temperature field monitoring system to realize monitoring of a compost internal temperature field.
In order to achieve the above object, the present invention provides a compost internal temperature field monitoring system, comprising:
the temperature measuring device comprises a plugging piece with a first connecting port, at least one temperature measuring pipe unit and a control communication unit with a second connecting port; one end of each temperature measuring pipe unit is provided with a first connecting port, the other end of each temperature measuring pipe unit is provided with a second connecting port, and two adjacent temperature measuring pipe units are connected in a matched mode through the first connecting ports and the second connecting ports; the second connecting port of the first temperature measuring pipe unit is connected with the first connecting port of the plugging piece in a matching way, and the first connecting port of the last temperature measuring pipe unit is connected with the second connecting port of the control communication unit in a matching way;
a plurality of temperature measuring elements are arranged on each temperature measuring pipe unit and used for acquiring the temperatures of different positions in the compost;
the control communication unit comprises a main control board and a gravity sensor, and the gravity sensor is used for acquiring the inclination angle of the control communication unit relative to the horizontal plane;
the main control board is respectively connected with the temperature measuring pipe unit and the gravity sensor, and is used for sending the received temperatures and the inclination angles of different positions in the compost to the client side, so that the client side displays temperature fields generated according to the temperatures and the inclination angles of the different positions in the compost.
Optionally, the number and the spacing distance of the temperature measuring elements arranged on each temperature measuring tube unit are preset with a plurality of gradients according to measurement requirements; the measurement requirements include the temperature range inside the compost, the temperature change gradient, the compost size and the requirement for temperature change in the composting process.
Optionally, the system further includes:
and the communication module is respectively connected with the main control board and the client and is used for sending the temperatures and the inclination angles of different positions in the compost to the client.
Optionally, the system further includes:
and the storage battery is respectively connected with the main control panel and the communication module and is used for providing electric energy for the main control panel and the communication module.
Optionally, the temperature measuring tube unit is a tubular body, and the plurality of temperature measuring elements are distributed on two sides of the temperature measuring tube unit.
Optionally, the system further includes:
and the transmission line is arranged inside each temperature measuring tube unit, and the temperature measuring elements are connected with the main control board through the transmission line.
Optionally, the first connection port and the second connection port are connected through a thread; or the first connecting port and the second connecting port are connected through a bolt.
Optionally, the client and the communication module perform data transmission in a wireless transmission manner.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides a compost internal temperature field monitoring system, which comprises: the temperature measuring device comprises a plugging piece, at least one temperature measuring pipe unit and a control communication unit; two adjacent temperature measuring tube units are connected in a matching way through a first connecting port and a second connecting port; the second connecting port of the first temperature measuring pipe unit is connected with the first connecting port of the plugging piece in a matching way, and the first connecting port of the last temperature measuring pipe unit is connected with the second connecting port of the control communication unit in a matching way; the temperature measuring elements are used for acquiring the temperatures of different positions in the compost; the gravity sensor is used for acquiring the inclination angle of the control communication unit relative to the horizontal plane; the main control board sends the received temperatures and the inclination angles of different positions in the compost to the client side, so that the client side displays temperature fields generated according to the temperatures and the inclination angles of the different positions in the compost. The method realizes real-time and high-precision measurement of the temperature field in the compost, can accurately reflect the state in the compost fermentation process, provides data basis for the operation flow of the compost, can greatly improve the quality of the organic fertilizer compost, and improves the economic value of fertilizer products. In addition, the invention adopts a mode of multi-stage connection of the temperature measuring tube units, is convenient to carry, and can freely combine measuring devices with different lengths, thereby being suitable for composts with different sizes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a diagram of a monitoring system for the temperature field inside compost according to an embodiment of the invention;
FIG. 2 is a structural diagram of a compost internal temperature field monitoring system in which a first connecting port and a second connecting port are connected through a bolt according to an embodiment of the invention;
FIG. 3 is a structural diagram of a compost internal temperature field monitoring system with a first connector and a second connector connected through threads according to an embodiment of the invention;
FIG. 4 is a schematic diagram of the use state of a monitoring system of the internal temperature field of the compost in the embodiment of the invention;
the device comprises a plugging piece 1, a plugging piece 2, a second connecting port 3, a temperature measuring element 4, a temperature measuring tube unit 5, a transmission line 6, a first connecting port 7, a control communication unit 8, a main control board 9, a communication module 10, a storage battery 11, a client side 12, simple compost 13, a nut 14 and a bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a compost internal temperature field monitoring system to realize monitoring of a compost internal temperature field.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention discloses a compost internal temperature field monitoring system, which comprises: the plugging piece comprises a plugging piece 1 with a first connecting port 6, at least one temperature measuring pipe unit 4 and a control communication unit 7 with a second connecting port 2; one end of each temperature measuring pipe unit 4 is provided with a first connecting port 6, the other end of each temperature measuring pipe unit 4 is provided with a second connecting port 2, and two adjacent temperature measuring pipe units 4 are connected in a matched mode through the first connecting ports 6 and the second connecting ports 2; the second connecting port 2 of the first temperature measuring tube unit 4 is connected with the first connecting port 6 of the plugging piece 1 in a matching way, and the first connecting port 6 of the last temperature measuring tube unit 4 is connected with the second connecting port 2 of the control communication unit 7 in a matching way; a plurality of temperature measuring elements 3 are arranged on each temperature measuring tube unit 4, and the temperature measuring elements 3 are used for acquiring the temperatures of different positions in the compost; the control communication unit 7 comprises a main control board 8 and a gravity sensor, wherein the gravity sensor is used for acquiring the inclination angle of the control communication unit 7 relative to the horizontal plane; the main control board 8 is respectively connected with the temperature measuring tube unit 4 and the gravity sensor, and the main control board 8 is used for sending the received temperatures and inclination angles of different positions in the compost to the client 11, so that the client 11 visually displays the temperature fields generated according to the temperatures and inclination angles of different positions in the compost. Parameters matched with the temperature measuring tube unit 4 are preset in the client 11, and the client 11 is a mobile phone or a computer.
The client 11 generates a temperature field according to the temperatures and the inclination angles of different positions in the compost by an interpolation calculation method.
As an implementation mode, the number and the spacing distance of the temperature measuring elements 3 arranged on each temperature measuring tube unit 4 are preset with a plurality of gradients according to the measurement requirements, as shown in figure 1, the compost internal temperature field monitoring system is formed by connecting three temperature measuring tube units 4 with different temperature measuring elements 3 in an end-to-end mode, and the temperature measuring elements 3 are distributed from dense to sparse. The measurement requirements include the temperature range inside the compost, the temperature change gradient, the compost size and the requirement for temperature change in the composting process. The plurality of gradients mean that the number and the spacing of the temperature measuring elements 3 on different temperature measuring tube units 4 are different, and the temperature measuring tube units 4 can be dynamically adjusted to realize different measuring accuracies. The temperature change gradient is a temperature difference over a distance. For example, a temperature measuring tube unit 4 having 5 temperature measuring elements 3 is selected for a temperature change of 10 ℃ over a distance of 1 m, and a temperature measuring tube unit 4 having 3 temperature measuring elements 3 is selected for a temperature change of 5 ℃ over a distance of 1 m. Therefore, the higher the temperature change gradient measurement is required, the more temperature measuring tube units 4 having the temperature measuring elements 3 are selected.
As an embodiment, the system of the present invention further includes: and the communication module 9 is arranged in the control communication unit 7, is respectively connected with the main control board 8 and the client 11, and is used for sending the temperatures and the inclination angles of different positions in the compost to the client 11. The client 11 and the communication module 9 adopt a wireless transmission mode for data transmission; the wireless transmission mode mainly comprises a WiFi or Bluetooth transmission mode.
As an embodiment, the system of the present invention further includes: and the storage battery 10 is arranged in the control communication unit 7, is respectively connected with the main control board 8 and the communication module 9, and is used for providing electric energy for the main control board 8 and the communication module 9.
In one embodiment, the temperature measuring tube unit 4 of the present invention is a tubular body, and the plurality of temperature measuring elements 3 are distributed on both sides of the temperature measuring tube unit 4. The temperature measuring tube unit 4 is made of a material with poor thermal conductivity, so that the interference of a heat conduction phenomenon on the temperature measuring element 3 is avoided. In addition, the measuring range of the temperature measuring element 3 is larger than the temperature change range of the compost in the whole production process, and the sensitivity level of the temperature measuring element is higher than the measuring requirement at the maximum temperature change gradient of the compost.
As an embodiment, the system of the present invention further includes: and the transmission line 5 is arranged inside each temperature measuring tube unit 4, and the temperature measuring element 3 is connected with the main control board 8 through the transmission line 5. The transmission line 5 is positioned inside the temperature measuring tube unit 4, so that the safety of the transmission line 5 is effectively protected, the transmission line 5 is prevented from being broken in use, the stability of equipment is improved, and the transmission lines 5 in the adjacent temperature measuring tube units 4 are connected through quick connectors.
As shown in fig. 2, the first connection port 6 and the second connection port 2 are connected by a bolt 14, the first connection port 6 is a connection female head, the second connection port 2 is a connection male head, the connection male head is inserted into the connection female head and connected by penetrating the bolt 14 into an aligned central hole, the bolt 14 is fixed by a nut 13, the nut 13 is tightened, the positions of the temperature measuring tube units 4 are fixed, the nut 13 is loosened, the temperature measuring tube units 4 can rotate relative to each other, the folding is facilitated, the nut 13 is disassembled, and the combination of the temperature measuring tube units 4 can be replaced. Meanwhile, the temperature measuring tube unit 4 is changed into a sheet-shaped body, and the temperature measuring elements 3 on two sides of the original temperature measuring tube unit 4 are changed into a structure arranged in the center of the temperature measuring tube unit 4.
As shown in fig. 3, the first connection port 6 is a locking screw thread, the second connection port 2 is a locking ring, and the locking screw thread and the locking ring are connected by screw threads.
As shown in figure 4, the monitoring systems of the temperature field in the compost are distributed in the horizontal direction and the vertical direction and are inserted into the simple compost 12, so that the temperature measuring elements 3 form plane distribution in the simple compost 12, the temperature distribution on the plane is calculated, and a group of temperature measuring tube units 4 can be added to form the measurement distribution of the temperature field in a three-dimensional space. Meanwhile, in the simplest case, the temperature distribution in the one-dimensional direction can also be performed with a single set of temperature tube units 4.
The invention discloses a compost internal temperature field monitoring system for monitoring, which comprises the following specific monitoring steps:
step S1: the connection number of the temperature measuring tube units 4, the arrangement interval of the temperature measuring elements 3 on each temperature measuring tube unit 4 and the arrangement position of the temperature measuring tube units 4 are determined according to the overall dimension of the compost and the characteristics of the compost.
Step S2: temperature measuring tube units 4 with temperature measuring elements 3 are selected according to the temperature monitoring requirement in the foot composting process, the temperature measuring tube units 4 are connected end to end, and plugging pieces 1 and a control communication unit 7 are installed and connected with an internal transmission line 5.
That is to say, if the internal temperature difference is large, the temperature measuring tube unit 4 with the smaller arrangement interval of the temperature measuring elements 3 is selected, if the internal temperature difference is small, the temperature measuring tube unit 4 with the larger arrangement interval of the temperature measuring elements 3 is selected, and when the temperature measuring tube unit 4 is selected, the temperature monitoring requirement in the composting process is met, so that the sensitivity of the temperature measuring elements 3 is higher than the temperature difference of two longitudinally adjacent temperature measuring elements 3 in the actual measurement environment, and the detection precision between the temperature measuring elements 3 on the temperature measuring tube unit 4 is ensured to be higher than the temperature monitoring requirement precision in the composting process.
Step S3: after the temperature field monitoring system in the compost is inserted into the compost along one direction, the temperature of different positions in the compost is measured by using a plurality of temperature measuring elements 3, and the inclination angle of a control communication unit 7 relative to the horizontal plane is measured by using a gravity sensor.
Step S4: the client 11 and the temperature measuring tube unit 4 are synchronously provided with parameters, the temperature measurement and the inclination angle of different positions in the compost are sent to the client 11 through the communication module 9, meanwhile, the client 11 performs interpolation calculation according to the inclination angle and the temperature of different positions in the compost, temperature field distribution in a first stack is obtained, and temperature field measurement distribution in a one-dimensional space is realized.
Step S5: and (4) inserting the temperature field monitoring system in the compost into the compost along the other direction, and repeating the steps S3 and S4 to obtain the temperature field distribution in the second compost and realize the temperature field measurement distribution on the two-dimensional space.
Step S6: and (4) inserting the temperature field monitoring system in the compost along the third direction into the compost, and repeating the steps S3 and S4 to obtain the temperature field distribution in the third pile and realize the temperature field measurement distribution in the three-dimensional space.
The method realizes real-time and high-precision measurement of the temperature field in the compost, can accurately reflect the state in the compost fermentation process, provides data basis for the operation flow of the compost, can greatly improve the quality of the organic fertilizer compost, and improves the economic value of fertilizer products; the temperature measuring tube units 4 are connected in a multi-stage manner, so that the portable temperature measuring device is convenient to carry, and measuring devices with different lengths can be freely combined, thereby being suitable for composts with different sizes; the temperature measuring elements 3 on the temperature measuring tube unit 4 have various distribution types, and can realize temperature measurement of different space granularities; the client 11 adopts wireless communication, is convenient to use, reduces the use of cables, and is safer and more stable; the number of the measuring devices can be freely combined, the accurate measurement of the temperature field in the three-dimensional space is realized, and the degree of freedom is high.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to assist understanding of the system and its core concepts; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. A compost internal temperature field monitoring system, comprising:
the temperature measuring device comprises a plugging piece with a first connecting port, at least one temperature measuring pipe unit and a control communication unit with a second connecting port; one end of each temperature measuring pipe unit is provided with a first connecting port, the other end of each temperature measuring pipe unit is provided with a second connecting port, and two adjacent temperature measuring pipe units are connected in a matched mode through the first connecting ports and the second connecting ports; the second connecting port of the first temperature measuring pipe unit is connected with the first connecting port of the plugging piece in a matching way, and the first connecting port of the last temperature measuring pipe unit is connected with the second connecting port of the control communication unit in a matching way;
a plurality of temperature measuring elements are arranged on each temperature measuring pipe unit and used for acquiring the temperatures of different positions in the compost;
the control communication unit comprises a main control board and a gravity sensor, and the gravity sensor is used for acquiring the inclination angle of the control communication unit relative to the horizontal plane;
the main control board is respectively connected with the temperature measuring tube unit and the gravity sensor, and is used for sending the received temperatures and inclination angles of different positions in the compost to the client so as to enable the client to display a temperature field generated according to the temperatures and inclination angles of the different positions in the compost;
inserting a temperature field monitoring system in the compost into the compost along a plurality of directions, measuring the temperature of different positions in the compost by using a plurality of temperature measuring elements, and measuring the inclination angle of a control communication unit relative to a horizontal plane by using a gravity sensor; the client performs interpolation calculation according to the inclination angle and the temperatures of different positions in the compost to obtain the temperature field distribution in each pile, so as to realize the temperature field measurement distribution in a multi-dimensional space;
the number and the spacing distance of the temperature measuring elements arranged on each temperature measuring pipe unit are preset with a plurality of gradients according to measurement requirements, wherein the measurement requirements comprise the internal temperature range of compost, the temperature change gradient, the compost size and the requirement on temperature change in the compost treatment process;
and the transmission line is arranged inside each temperature measuring tube unit, and the temperature measuring elements are connected with the main control board through the transmission line.
2. The compost internal temperature field monitoring system of claim 1, wherein the number and the spacing distance of the temperature measuring elements arranged on each temperature measuring tube unit are preset with a plurality of gradients according to measurement requirements; the measurement requirements include the temperature range inside the compost, the temperature change gradient, the compost size and the requirement for temperature change in the composting process.
3. A compost internal temperature field monitoring system as claimed in claim 1, further comprising:
and the communication module is respectively connected with the main control board and the client and is used for sending the temperatures and the inclination angles of different positions in the compost to the client.
4. A compost internal temperature field monitoring system as claimed in claim 3, further comprising:
and the storage battery is respectively connected with the main control panel and the communication module and is used for providing electric energy for the main control panel and the communication module.
5. A compost internal temperature field monitoring system as claimed in claim 1, wherein said temperature tube unit is a tubular body, and a plurality of said temperature measuring elements are distributed on both sides of said temperature tube unit.
6. A compost internal temperature field monitoring system as claimed in claim 1, wherein said first connection port and said second connection port are connected by a screw thread; or the first connecting port and the second connecting port are connected through a bolt.
7. A compost internal temperature field monitoring system as claimed in claim 3, wherein data transmission is performed between said client and said communication module by wireless transmission.
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Citations (5)
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| CN204373812U (en) * | 2014-12-23 | 2015-06-03 | 山东农业大学 | A kind of temperature sensing device for detecting compost temperature variable Rate |
| CN105547515A (en) * | 2016-02-25 | 2016-05-04 | 中国科学院地质与地球物理研究所 | Self-floating undersea temperature detecting system |
| CN106768009A (en) * | 2015-11-25 | 2017-05-31 | 李福霞 | A kind of scale aerobic compost temperature oxygen monitoring system |
| CN107703193A (en) * | 2017-09-27 | 2018-02-16 | 北京农业智能装备技术研究中心 | For measuring the device and method of moisture in compost |
| CN111026199A (en) * | 2019-11-25 | 2020-04-17 | 南京大学（溧水）生态环境研究院 | Kitchen remains compost intelligent monitoring regulation and control system |
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2020
- 2020-06-01 CN CN202010482968.8A patent/CN111579128B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204373812U (en) * | 2014-12-23 | 2015-06-03 | 山东农业大学 | A kind of temperature sensing device for detecting compost temperature variable Rate |
| CN106768009A (en) * | 2015-11-25 | 2017-05-31 | 李福霞 | A kind of scale aerobic compost temperature oxygen monitoring system |
| CN105547515A (en) * | 2016-02-25 | 2016-05-04 | 中国科学院地质与地球物理研究所 | Self-floating undersea temperature detecting system |
| CN107703193A (en) * | 2017-09-27 | 2018-02-16 | 北京农业智能装备技术研究中心 | For measuring the device and method of moisture in compost |
| CN111026199A (en) * | 2019-11-25 | 2020-04-17 | 南京大学（溧水）生态环境研究院 | Kitchen remains compost intelligent monitoring regulation and control system |
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