An integrated calibration device for a biodegradation test system

Abstract

The utility model relates to device calibration technical field especially relates to a kind of integrated calibration device of biodegradation test system, by temperature detection module, carbon dioxide concentration detection module, gas flow detection module, main control module and power module are integrated in the shell of integrated structure, only need to carry one equipment to satisfy multiple detection needs, effectively solve the problem of function dispersion, equipment is numerous, improve detection efficiency, reduce equipment cost and occupied space;Through the design of small overall volume, light weight, it is convenient for user to carry to different places to detect, greatly improve the mobility and applicability of equipment;Through power module, rechargeable lithium battery is used, it is convenient to charge at any time to support complete calibration process;Through main control module, the data of each detection module can be quickly and accurately processed, and data is transmitted to intelligent terminal equipment in real time through wireless communication module, and user can remotely view and manage data.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment calibration technology, and in particular to an integrated calibration device for a biodegradation testing system. Background Technology

[0002] Biodegradation testing systems are primarily used to evaluate the degradation performance of materials in biological environments. Their principle is to simulate the biodegradation process of materials in natural environments, measuring the biodegradability of materials by monitoring relevant indicators. A biodegradation testing system consists of a temperature control system, reaction vessel, flow control system, humidity control system, gas supply system, detection system, and automatic control system. Key parameters affecting the instrument's metrological performance are temperature, flow rate, and carbon dioxide sensors. If the temperature deviates from the suitable range, the metabolic rate of microorganisms will change, potentially accelerating or slowing down the degradation reaction, leading to test results that do not accurately reflect the biodegradation performance of the sample under normal conditions. The accuracy of the carbon dioxide concentration monitoring equipment ensures that the measured concentration accurately reflects the sample's degradation status, avoiding incorrect assessments of biodegradability performance due to concentration measurement errors. Gas flow rate affects the oxygen supply and the removal of metabolic products within the system; a suitable gas flow rate provides a favorable living environment for microorganisms, ensuring the normal progress of the degradation reaction.

[0003] Currently, existing calibration devices lack integrated calibration methods, requiring multiple devices to calibrate multiple parameters separately, resulting in low efficiency and inconvenience. Some integrated testing devices are bulky and inconvenient to carry to the site for calibration. Some calibration devices require continuous power connection or have short battery life, making it impossible to support the complete calibration process. Some devices lack data transmission or data processing functions, relying mostly on manual recording and lacking remote monitoring capabilities. Utility Model Content

[0004] This utility model discloses an integrated calibration device for a biodegradation testing system, which aims to solve the technical problems existing in the prior art.

[0005] The present invention adopts the following technical solution: An integrated calibration device for a biodegradation testing system is placed in the environmental control area of ​​the biodegradation testing system. It includes a housing unit and an electronic unit installed within the inner cavity of the housing unit. The electronic unit includes a temperature detection module and a carbon dioxide concentration detection module installed on one side, a main control module located in the middle, and a gas flow detection module located on the other side. The temperature detection module, carbon dioxide concentration detection module, and gas flow detection module are all connected to the main control module via wires. The temperature probe of the temperature detection module and the carbon dioxide concentration probe of the carbon dioxide concentration detection module are connected to the outside through vents on the top wall of the housing, and the outer walls of all probes are sealed to the top wall at their connection points. The gas flow detection module includes a horizontally installed gas flow pipe and a gas flow sensor located within the gas flow pipe. The inlet and outlet of the gas flow pipe are located on the outer surface of the side wall of the housing, and a filter is installed at the inlet end.

[0006] In some embodiments, the airflow sensor located in the gas flow pipe includes a heating sensor and a temperature sensor, with the heating sensor near the air inlet and the temperature sensor near the air outlet; the gas flow detection module is electrically connected to the main control chip provided in the main control module.

[0007] In some embodiments, the mesh count of the filter should be no less than 30 meshes.

[0008] In some embodiments, a temperature probe provided on the top of the temperature detection module extends from a through hole in the top wall of the housing. The temperature probe includes a stainless steel sensor housing and a temperature sensor located inside. The outer wall of the temperature probe is sealed and armored together with the housing. The length of the temperature probe is set according to preset requirements. The temperature detection module is connected to the corresponding pins of the main control chip provided in the main control module via pins.

[0009] In some embodiments, the carbon dioxide concentration detection module is provided with a carbon dioxide concentration detection probe on its top, and a carbon dioxide sensor is provided inside the carbon dioxide concentration detection probe. The carbon dioxide concentration detection probe is sealed and armored as a whole with the outer shell, and the carbon dioxide concentration detection probe is in direct contact with the air through the shell cutout on the top wall of the outer shell. The carbon dioxide concentration detection module is electrically connected to the main control chip provided in the main control module.

[0010] In some embodiments, the main control module includes a main control chip for receiving temperature, carbon dioxide concentration, and gas flow signals from the detection module, processing, analyzing, and storing the data, and a wireless communication module for transmitting the processed data to an external smart terminal in the form of wireless signals.

[0011] In some embodiments, the housing unit includes an integrated PVC outer shell, an inner cavity for housing the electronic unit, and a support frame placed in the inner cavity for stabilizing the electronic unit; and the outer shell is a small-volume square with external dimensions of length × width × height, and the maximum side length should not exceed 300mm.

[0012] In some embodiments, the wall thickness H of the outer casing should satisfy: 4mm < H < 6mm.

[0013] In some embodiments, the wall thickness H of the outer casing is set to 5 mm.

[0014] In some embodiments, the device further includes a power module for powering the electronic unit, the power module employing a rechargeable lithium battery; and an exposed charging port is provided on the side wall of the housing.

[0015] Beneficial effects:

[0016] This utility model discloses an integrated calibration device for a biodegradation testing system. Compared with the prior art, this utility model has the following advantages: An integrated calibration device for a biodegradation testing system integrates a temperature detection module, a carbon dioxide concentration detection module, a gas flow detection module, a main control module, and a power supply module into a single PVC housing. This allows for multiple testing needs to be met with a single device, effectively solving the problems of fragmented functions and numerous devices, improving testing efficiency, and reducing equipment costs and space requirements. Its compact size and lightweight design make it easy for users to carry to different locations, greatly improving the device's mobility and applicability. The power supply module uses a rechargeable lithium battery, with an exposed charging port on the side wall of the housing for convenient charging at any time, ensuring support for the entire calibration process. The main control module contains a low-power, high-performance microcontroller that receives, processes, analyzes, and stores the temperature, carbon dioxide concentration, and gas flow signals from the detection modules. This allows for fast and accurate processing, analysis, and storage of data from each detection module. A wireless communication module enables wireless transmission of the test data to smartphones, tablets, or computers, facilitating remote viewing and management by users. This solves the problems of inconvenient data transmission and lack of remote monitoring, improving data operability and the device's intelligence. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below, constituting a part of this utility model. The illustrative embodiments of this utility model and their descriptions explain this utility model and do not constitute an improper limitation of this utility model; in the drawings: Figure 1 This is a schematic diagram of the technical solution structure of the integrated calibration device for the biodegradation testing system disclosed in this utility model embodiment; Figure 2 for Figure 1 AA section view; Figure 3 for Figure 1 Top view.

[0018] In the picture: Housing unit 1; outer shell 11; support frame 12; charging port 13; vent 14; through hole 141; hollow part 142; inner chamber 15; temperature detection module 2; temperature probe 21; temperature sensor 211; main control module 3; main control chip 31; wireless communication module 32; gas flow detection module 4; heating sensor 41; temperature sensor 42; gas flow pipe 43; air inlet 431; air outlet 432; filter screen 45; carbon dioxide concentration detection module 5; carbon dioxide concentration detection probe 51; carbon dioxide sensor 511; power module 6; wires 7; computer 8. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. In the description of this utility model, it should be noted that the term "comprising" mentioned in the specification and claims is an open-ended term and should therefore be interpreted as "including but not limited to".

[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments; based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figures 1-3 As shown, the technical solution disclosed in this utility model is as follows: An integrated calibration device for a biodegradation testing system is placed in the environmental control area of ​​the biodegradation testing system. It includes a housing unit 1 and an electronic unit installed in the inner chamber 15 of the outer housing 11 of the housing unit 1. The electronic unit includes a temperature detection module 2 and a carbon dioxide concentration detection module 5 installed on one side, a main control module 3 located in the middle, and a gas flow detection module 4 located on the other side. The temperature detection module 2, carbon dioxide concentration detection module 5, and gas flow detection module 4 are all connected to the main control module 3 via wires 7. The temperature probe 21 of the measurement module 2 and the carbon dioxide concentration detection probe 51 of the carbon dioxide concentration detection module 5 are both connected to the outside through the vent 14 provided on the top wall of the outer shell 11, and the outer walls of all probes are sealed and fitted to the top wall at the connection point; the gas flow detection module 4 includes a horizontally installed gas flow pipe 43 and an airflow sensor located in the gas flow pipe 43. The inlet 431 and outlet 432 of the gas flow pipe 43 are respectively located on the side outer wall surface of the outer shell 11, and a filter screen 45 is installed at the inlet 431 end.

[0023] like Figures 1-3 As shown, the preferred embodiment of this utility model is as follows: An integrated calibration device for a biodegradation testing system is placed in the environmental control area of ​​the biodegradation testing system. It includes a housing unit 1 and an electronic unit installed in the inner chamber 15 of the outer shell 11 of the housing unit 1. The electronic unit includes a temperature detection module 2, a carbon dioxide concentration detection module 5, a gas flow detection module 4, and a main control module 3. The temperature detection module 2 and the carbon dioxide concentration detection module 5 are located on one side and at the top of the inner chamber 15, while a power supply module 6 for powering the electronic unit is installed at the bottom. The main control module 3 is located in the middle, and the gas flow detection module 4 is installed on the other side of the main control module 3. The temperature detection module 2, the carbon dioxide concentration detection module 5, and the gas flow detection module 4 are all electrically connected to the main control module 3, and all three modules are connected to the power supply module 6 via wires 7.

[0024] The housing unit 1 includes an integrated outer shell 11 made of PVC material, an inner cavity 15, and a support frame 12 placed in the inner cavity 15 to stabilize the electronic unit. PVC plastic material has the characteristics of being lightweight and high-strength. The wall thickness H of the outer shell 11 should meet the following requirement: 4mm < H < 6mm. In this embodiment, the wall thickness H is selected as 5mm, which plays a good role in protecting the internal electronic unit.

[0025] The outer shell 11 is designed as a small-volume cuboid or cube shape, with external dimensions of length L1 × width L2 × height L3, and the maximum side length should not exceed 300mm. In this embodiment, a cuboid is selected, with external dimensions of length L1 × width L2 × height L3 of 300mm * 250mm * 250mm.

[0026] The top of the outer casing 11 is provided with a vent 14, which includes a through hole 141 and a hollow part 142; the through hole 141 corresponds to the temperature probe 21, and the hollow part 142 corresponds to the carbon dioxide concentration detection probe 51.

[0027] Through integrated design, a single device can meet multiple testing needs, effectively solving the problems of scattered functions and numerous devices, improving testing efficiency, and reducing equipment costs and space occupation. The small overall size and light weight design make it convenient for users to carry the device to different locations for testing, greatly improving the mobility and applicability of the equipment.

[0028] The power module 6 uses a rechargeable lithium battery, and the outer casing 11 has an exposed charging port 13 on its side wall, which can be conveniently charged at any time to ensure support for the complete calibration process.

[0029] The gas flow detection module 4 uses a thermal gas mass flow sensor, which is based on the principle of thermal diffusion and can directly measure gas mass flow without temperature and pressure compensation. It has the advantages of high measurement accuracy, fast response speed and wide range.

[0030] The gas flow detection module 4 includes a horizontally installed gas flow pipe 43 and an airflow sensor located inside the gas flow pipe 43. The gas flow pipe 43 passes through the outer shell 11. The inlet 431 and the outlet 432 are located on the outer side wall surface of the outer shell 11, and a filter screen 45 is installed at the inlet 431 end.

[0031] The airflow sensor includes a heating sensor 41 and a temperature sensor 42. The heating sensor 41 is located near the air inlet 431, and the temperature sensor 42 is located near the air outlet 432. The gas flow detection module 4 is electrically connected to the main control chip 31 of the main control module 3 via a wire 7, and transmits the detected gas flow data to the main control chip 31.

[0032] The mesh size of the filter screen 45 should be no less than 30 mesh. In this embodiment, 30 mesh is selected to prevent dust and other impurities from entering and affecting the detection accuracy.

[0033] The temperature detection module 2 is equipped with a temperature probe 21 on its top. The temperature probe 21 has a stainless steel metal shell on the outside and a temperature sensor 211 inside. In this embodiment, a PT1000 platinum resistance temperature sensor is used.

[0034] The temperature probe 21 extends from the through hole 141 on the top wall of the outer casing 11. The connection between the outer wall of the temperature probe 21 and the outer casing 11 is armored and sealed. The length of the temperature probe is set according to preset requirements. The temperature detection module 2 is connected to the corresponding pin of the main control chip 31 provided in the main control module 3 through pins.

[0035] The top of the carbon dioxide concentration detection module 5 is provided with a carbon dioxide concentration detection probe 51, and the carbon dioxide concentration detection probe 51 is provided with a carbon dioxide sensor 511. In this embodiment, the MG811 carbon dioxide sensor based on the NDIR principle is used. This sensor has the characteristics of high sensitivity, good stability and long life.

[0036] The top wall of the outer shell 11 of the carbon dioxide concentration detection probe 51 is provided with a corresponding hollow part 142. The outer wall of the carbon dioxide concentration detection probe 51 and the outer shell 11 are sealed and armored together. The carbon dioxide concentration detection probe 51 directly contacts the air through the hollow part 142 on the top wall of the outer shell 11 to detect the carbon dioxide concentration. The carbon dioxide concentration detection module 4 is electrically connected to the main control chip 31 of the main control module 3 through the wire 7. It can detect the carbon dioxide concentration in the environment in real time and send the data to the main control chip 31.

[0037] The main control module 3 includes a main control chip 31 for receiving temperature, carbon dioxide concentration, and gas flow signals from the detection modules, processing, analyzing, and storing the data, and a wireless communication module 32 for transmitting the processed data to an external smart terminal in the form of wireless signals. The main control chip 31 uses a low-power, high-performance STM32 microcontroller to receive data transmitted from the temperature detection module 2, gas flow detection module 4, and carbon dioxide concentration detection module 5, and to process, analyze, and store the data. The wireless communication module 32 uses a Bluetooth module and connects to the main control chip 31, enabling wireless transmission of detection data to a computer 8 or terminal devices such as smartphones and tablets. This facilitates remote viewing and management of detection data by users, solving the problems of inconvenient data transmission and inability to remotely monitor, and also facilitates data interaction and sharing with other devices, improving data operability and the intelligence level of the equipment.

[0038] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. An integrated calibration device for a biodegradation testing system, placed in the environmental control area of ​​the biodegradation testing system, characterized in that: The device includes a housing unit and an electronic unit installed within the inner cavity of the housing unit. The electronic unit includes a temperature detection module and a carbon dioxide concentration detection module installed on one side, a main control module located in the middle, and a gas flow detection module located on the other side. The temperature detection module, the carbon dioxide concentration detection module, and the gas flow detection module are all connected to the main control module via wires. The temperature probe of the temperature detection module and the carbon dioxide concentration detection probe of the carbon dioxide concentration detection module are connected to the outside through vents on the top wall of the housing, and the outer walls of all probes are sealed and fitted to the top wall at their joints. The gas flow detection module includes a horizontally installed gas flow pipe and an airflow sensor located within the gas flow pipe. The inlet and outlet of the gas flow pipe are located on the outer surface of the side wall of the housing, and a filter screen is installed at the inlet end.

2. The integrated calibration device for the biodegradation testing system according to claim 1, characterized in that: The airflow sensor located in the gas flow pipe includes a heating sensor and a temperature sensor. The heating sensor is located near the air inlet end, and the temperature sensor is located near the air outlet end. The gas flow detection module is electrically connected to the main control chip in the main control module.

3. The integrated calibration device for the biodegradation testing system according to claim 2, characterized in that: The mesh size of the filter screen should be no less than 30 mesh.

4. The integrated calibration device for the biodegradation testing system according to claim 1, characterized in that: The temperature probe on the top of the temperature detection module extends from a through hole in the top wall of the housing. The temperature probe includes a stainless steel sensor housing and an internal temperature sensor. The outer wall of the temperature probe is sealed and armored together with the housing. The length of the temperature probe is set according to preset requirements. The temperature detection module is connected to the corresponding pins of the main control chip in the main control module via pins.

5. The integrated calibration device for the biodegradation testing system according to claim 1, characterized in that: The carbon dioxide concentration detection module is equipped with a carbon dioxide concentration detection probe on its top. The carbon dioxide concentration detection probe contains a carbon dioxide sensor. The carbon dioxide concentration detection probe is sealed and armored as a whole with the outer shell, and the carbon dioxide concentration detection probe is in direct contact with the air through the shell cutout on the top wall of the outer shell. The carbon dioxide concentration detection module is electrically connected to the main control chip in the main control module.

6. The integrated calibration device for the biodegradation testing system according to claim 1, characterized in that: The main control module includes a main control chip for receiving temperature, carbon dioxide concentration, and gas flow signals from the detection module, processing, analyzing, and storing the data, and a wireless communication module for transmitting the processed data to an external smart terminal in the form of wireless signals.

7. The integrated calibration device for the biodegradation testing system according to claim 1, characterized in that: The housing unit includes an integrated PVC outer shell, an inner cavity for housing the electronic unit, and a support frame placed in the inner cavity for stabilizing the electronic unit; the outer shell is a small-volume square with external dimensions of length × width × height, and the maximum side length should not exceed 300mm.

8. The integrated calibration device for the biodegradation testing system according to claim 7, characterized in that: The wall thickness H of the outer shell should satisfy: 4mm < H < 6mm.

9. The integrated calibration device for the biodegradation testing system according to claim 8, characterized in that: The wall thickness H of the outer shell is set to 5mm.

10. The integrated calibration device for the biodegradation testing system according to claim 8, characterized in that: It also includes a power module that supplies power to the electronic unit, the power module using a rechargeable lithium battery; an exposed charging port is provided on the side wall of the housing.

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