Biochemical oxygen demand measuring device and water quality measuring system

Abstract

The utility model discloses a biochemical oxygen demand measuring device and a water quality measuring system.In the biochemical oxygen demand measuring device, a measuring module is assembled in a shell, a measured water container provides a constant-temperature environment for biochemical reaction of measured water, and the measuring module is assembled on the measured water container; the measuring module comprises a first main board structure and a second main board structure, and the first main board structure and the second main board structure are in an up-and-down position relation. A pressure sensor is arranged on the lower surface of the first main board structure and faces to-be-detected water in the to-be-detected water container, and pressure data in the to-be-detected water container are detected in real time so as to calculate the biological oxygen demand of the to-be-detected water; a wireless communication module is arranged on the upper surface of the second mainboard structure, a flow card is arranged on the lower surface of the second mainboard structure, and the flow card is electrically connected with the wireless communication module, so that the wireless communication module wirelessly sends the biological oxygen demand to target equipment based on the flow card, and the constant-temperature box does not need to be opened if a measurement result needs to be checked.

Description

Technical Field

[0001] The present application relates to the technical field of water quality measurement, and in particular to a biochemical oxygen demand measuring device and a water quality measuring system. Background Art

[0002] The quality of water is generally measured by measuring the biochemical oxygen demand. The principle is as follows: microorganisms consume oxygen in water and release carbon dioxide, which is absorbed by chemicals. The consumption of oxygen causes the vacuum degree in the culture bottle to increase, thereby causing the pressure in the bottle to decrease. The pressure in the bottle is detected in real time by the pressure sensor (211), and the pressure difference in the culture bottle is calculated by the processing circuit, and then the biological oxygen demand is calculated.

[0003] In order to simulate the biodegradation process in the natural environment, the biological oxygen demand measurement adopts a constant temperature water tank technology to maintain the constant temperature required for the growth and degradation process of microorganisms in the water body, and the above-mentioned pressure sensor and processing circuit are kept in the above-mentioned constant temperature environment.

[0004] In the prior art, during the measurement process, if you want to view the measurement results, you often need to open the thermostat to view the measurement results of the biological oxygen demand, and opening the thermostat may cause the temperature in the thermostat to change. Therefore, there are at least the following problems:

[0005] (1) The growth and degradation rate of microorganisms are closely related to temperature. Changes in temperature will cause changes in the growth and degradation rate of microorganisms, which in turn affects the consumption rate and measurement results of biological oxygen demand.

[0006] (2) Temperature changes may affect the dissolved oxygen content in water. Dissolved oxygen is one of the important factors for microbial growth and degradation. Temperature changes cause changes in dissolved oxygen content, which further affects the measurement results of biological oxygen demand.

[0007] (3) Temperature changes may affect the chemical reaction rates of other substances in the water body, thereby affecting the measured value of biological oxygen demand. Utility Model Content

[0008] In order to solve the above technical problems, the present application provides a biochemical oxygen demand measuring device and a water quality measuring system to at least alleviate the above technical problems.

[0009] The technical solutions provided by the embodiments of this application are as follows:

[0010] On the one hand, a biochemical oxygen demand measuring device is provided, comprising: a housing (1), a measuring module (2), and a measured water container (3), wherein the measuring module (2) is mounted in the housing (1), the measured water container (3) is used to provide a constant temperature environment for the measured water to perform a biochemical reaction, and the measuring module (2) is mounted on the measured water container (3); the measuring module (2) comprises: a first main board structure (21) and a second main board structure (22), wherein the first main board structure (21) and the second main board structure (22) are arranged in an upper and lower position relationship;

[0011] A pressure sensor (211) is provided on the lower surface of the first mainboard structure (21), the pressure sensor (211) facing the water to be tested in the water to be tested container (3), and used for real-time detection of pressure data in the water to be tested container (3) to calculate the biological oxygen demand of the water to be tested;

[0012] The upper surface of the second mainboard structure (22) is provided with a wireless communication module (221), and the lower surface is provided with a flow card, the flow card being electrically connected to the wireless communication module (221), so that the wireless communication module (221) wirelessly transmits the biological oxygen demand to a target device based on the flow card.

[0013] Optionally, the measurement module (2) further comprises: a mainboard structure connector (23), the mainboard structure connector (23) being located between the first mainboard structure (21) and the second mainboard structure (22), and having one end connected to the first mainboard structure (21) and the other end connected to the second mainboard structure (22), so that the first mainboard structure (21) and the second mainboard structure (22) are arranged in an upper and lower position relationship.

[0014] Optionally, the first mainboard structure (21) and the second mainboard structure (22) are parallel to each other, so that the mainboard structure connector (23) forms a vertical connection relationship with the first mainboard structure (21) and the second mainboard structure (22).

[0015] Optionally, a signal transmission line is provided in the mainboard structure connector (23) to perform data transmission between the first mainboard structure (21) and the second mainboard structure (22).

[0016] Optionally, the biochemical oxygen demand measuring device further comprises: a rechargeable battery and a charging interface (4); the charging interface (4) is arranged on the first main board structure (21) and can be exposed outside the measuring module (2) so as to charge the rechargeable battery; the rechargeable battery is arranged outside the measuring module (2) and is electrically connected to at least the pressure sensor (211), the flow card, and the wireless communication module (221) to supply power.

[0017] Optionally, a battery connection socket is provided on the upper surface of the first mainboard structure (21), and the battery connection socket is pluggably electrically connected to the rechargeable battery, and the battery connection socket has a plurality of power supply pins to electrically connect to at least the pressure sensor (211), the flow card, and the wireless communication module (221) for power supply.

[0018] Optionally, the battery connection seat is also provided with a charging pin line, and the charging pin line is electrically connected to the charging interface (4) so ​​as to charge the rechargeable battery.

[0019] Optionally, the biochemical oxygen demand measuring device further comprises: an antenna, wherein the antenna is arranged on the second main board structure (22).

[0020] Optionally, an interactive indicator light is provided on the upper surface of the second mainboard structure (22) for displaying the working status of the biochemical oxygen demand measuring device.

[0021] On the other hand, a water quality measurement system is provided, comprising: a biochemical oxygen demand measuring device as described in any one of the present application and a constant temperature box, wherein the biochemical oxygen demand measuring device is placed in the constant temperature box to provide a constant temperature environment for the measured water to perform biochemical reactions.

[0022] Through the present application, the problem of not opening the thermostat to check the measurement results is solved, thereby ensuring that the temperature in the thermostat will not change. On the one hand, it avoids changes in the growth and degradation rate of microorganisms caused by temperature changes, thereby affecting the consumption rate and measurement results of the biological oxygen demand; on the other hand, it avoids changes in dissolved oxygen content caused by temperature changes, thereby affecting the measurement results of the biological oxygen demand; finally, it avoids temperature changes affecting the chemical reaction rate of other substances in the water body, thereby affecting the measurement value of the biological oxygen demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall usage status of the biochemical oxygen demand measuring device according to an embodiment of the present application.

[0025] Figure 2 This is a schematic diagram of the first mainboard structure of an embodiment of the present application.

[0026] Figure 3 This is one of the schematic diagrams of the second mainboard structure (22) of the embodiment of the present application.

[0027] Figure 4 This is the second schematic diagram of the second mainboard structure (22) of the embodiment of the present application.

[0028] Figure 5 This is the third schematic diagram of the second mainboard structure (22) of the embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0030] It should be noted that the term "comprising" in the specification and claims of this application and the above-mentioned drawings is intended to cover non-exclusive inclusions. In this application, the orientations or positional relationships indicated by the terms "upper", "lower", "vertical", "horizontal", etc. are based on the orientations or positional relationships shown in the drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated components to have specific orientations. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Figure 1 This is a schematic diagram of the overall usage status of the biochemical oxygen demand measuring device according to an embodiment of the present application. Figure 2 This is a schematic diagram of the first mainboard structure of an embodiment of the present application. Figure 3 This is one of the schematic diagrams of the second mainboard structure (22) of the embodiment of the present application. Figure 4 This is the second schematic diagram of the second mainboard structure (22) of the embodiment of the present application. Figure 5This is the third schematic diagram of the second mainboard structure (22) of the embodiment of the present application.

[0033] like Figure 1-Figure 5 As shown, the biochemical oxygen demand measuring device comprises: a housing (1), a measuring module (2), and a measured water container (3), wherein the measuring module (2) is mounted in the housing (1), the measured water container (3) is used to provide a constant temperature environment for the measured water to perform a biochemical reaction, and the measuring module (2) is mounted on the measured water container (3); the measuring module (2) comprises: a first main board structure (21), and a second main board structure (22), wherein the first main board structure (21) and the second main board structure (22) are arranged in an upper and lower positional relationship. Exemplarily, the first main board structure (21) is located at the bottom, and therefore, it can be referred to as a lower main board; and the second main board structure (22) is located at the top, and therefore, it can be referred to as a lower main board.

[0034] A pressure sensor (211) is provided on the lower surface of the first mainboard structure (21), the pressure sensor (211) facing the water to be tested in the water container (3) to be tested, and is used to detect the pressure data in the water container (3) to be tested in real time so as to calculate the biological oxygen demand of the water to be tested.

[0035] The upper surface of the second mainboard structure (22) is provided with a wireless communication module (221), and the lower surface is provided with a flow card, the flow card being electrically connected to the wireless communication module (221), so that the wireless communication module (221) wirelessly transmits the biological oxygen demand to a target device based on the flow card.

[0036] Since the pressure sensor (211) is arranged on the first mainboard structure and directly contacts the inner cavity of the water container to be measured, the pressure data in the water container (3) to be measured can be detected in real time and accurately, thereby improving the accuracy and reliability of the measurement. In addition, the pressure sensor (211) is located on the lower surface of the first mainboard structure, which is convenient for installation and removal. If the sensor needs to be replaced or calibrated, the user can easily perform the operation without the need to perform complicated disassembly or adjustment of the entire device.

[0037] In this embodiment, since a wireless communication module (221) is provided on the second mainboard structure (22), the biological oxygen demand can be sent to a target device, such as a mobile phone or a server, in a wireless manner. Therefore, if the measurement result is to be checked, it is not necessary to open the thermostat, thereby ensuring that the temperature in the thermostat does not change. On the one hand, it avoids changes in the growth and degradation rate of microorganisms due to temperature changes, thereby affecting the consumption rate and measurement result of the biological oxygen demand; on the other hand, it avoids changes in dissolved oxygen content due to temperature changes, thereby affecting the measurement result of the biological oxygen demand; finally, it avoids temperature changes affecting the chemical reaction rate of other substances in the water body, thereby affecting the measurement value of the biological oxygen demand.

[0038] In addition, by allocating different functional modules to different mainboard structures, the space inside the device can be more effectively utilized, reducing the volume and weight of the overall device, making it more compact and portable. In addition, concentrating functionally related components on one mainboard structure is conducive to realizing modular design and improving the maintainability and scalability of the device. If a module fails, only the corresponding mainboard structure needs to be replaced, without the need for large-scale repair or replacement of the entire device. Moreover, the first mainboard structure (21) and the second mainboard structure (22) are arranged in an upper and lower positional relationship, so that the measurement module (2) is in an upper and lower stacked structural form in the overall structure, thereby reducing the volume of the measurement module (2) as a whole, and can be matched with a smaller volume of the measured water container (3), thereby reducing the footprint of the biochemical oxygen demand measurement device as a whole.

[0039] Furthermore, since the wireless communication module (221) and the flow card generate electromagnetic radiation when working, if they are too close to the pressure sensor (211), they may affect it. Therefore, by placing the wireless communication module (221) and the flow card on the upper main board, the signal interference between them and the pressure sensor (211) can be reduced, thereby improving the accuracy of the measurement result.

[0040] Here, it should be noted that calculating the biological oxygen demand of the water to be tested based on the pressure data detected in the water container (3) belongs to the prior art and will not be further described in this application.

[0041] Optionally, the measurement module (2) further comprises: a mainboard structure connector (23), the mainboard structure connector (23) being located between the first mainboard structure (21) and the second mainboard structure (22), and having one end connected to the first mainboard structure (21) and the other end connected to the second mainboard structure (22), so that the first mainboard structure (21) and the second mainboard structure (22) are arranged in an upper and lower position relationship.

[0042] To this end, the mainboard structure connector (23) makes the connection between the first mainboard structure and the second mainboard structure (22) more modular and standardized, simplifies the assembly and disassembly process of the device, and improves the maintainability and scalability of the device. In addition, through the mainboard structure connector (23), the first mainboard structure and the second mainboard structure (22) can be more firmly connected together, reducing the risk of loosening or damage caused by vibration or external forces, and improving the stability and reliability of the device. Furthermore, the use of the mainboard structure connector (23) makes the connection between the first mainboard structure and the second mainboard structure (22) more flexible. If the device needs to be upgraded or modified, only the corresponding mainboard structure needs to be replaced without large-scale changes to the entire device. Finally, if a mainboard structure fails, it can be easily removed from the device for repair or replacement through the mainboard structure connector (23) without affecting the normal operation of other parts, greatly reducing the maintenance cost and difficulty of the device.

[0043] Optionally, the first mainboard structure (21) and the second mainboard structure (22) are parallel to each other, so that the mainboard structure connector (23) forms a vertical connection relationship with the first mainboard structure (21) and the second mainboard structure (22).

[0044] Optionally, a signal transmission line is provided in the mainboard structure connector (23) to perform data transmission between the first mainboard structure (21) and the second mainboard structure (22).

[0045] To this end, by arranging the first mainboard structure and the second mainboard structure (22) in parallel and connecting them vertically with the mainboard structure connector (23), the space inside the device can be more effectively utilized, thereby reducing the horizontal spacing between the mainboards, making the entire device more compact and efficient. In addition, by arranging the mainboard structures in parallel and connecting them vertically, heat can be better managed and dispersed, reducing thermal interference between the mainboards, and improving the stability and reliability of the entire device. Furthermore, by vertically connecting the mainboard structure connector (23) and the mainboard, the signal transmission path can be optimized, signal attenuation and interference can be reduced, and the efficiency and stability of data transmission can be improved. Finally, the vertical connection relationship makes wiring and design simpler and more direct, reducing the complexity of the design and manufacturing costs.

[0046] Optionally, the biochemical oxygen demand measuring device further comprises: a rechargeable battery and a charging interface (4); the charging interface (4) is arranged on the first main board structure (21) and can be exposed outside the measuring module (2) so as to charge the rechargeable battery; the rechargeable battery is arranged outside the measuring module (2) and is electrically connected to at least the pressure sensor (211), the flow card, and the wireless communication module (221) to supply power.

[0047] For this reason, since the charging interface (4) is exposed outside the measuring module (2), the user can easily find and connect the charging device, thereby conveniently charging the rechargeable battery, ensuring that the device can continue to work when needed and will not be affected by power exhaustion. In addition, the rechargeable battery provides power for key components such as the pressure sensor (211), the flow card, and the wireless communication module (221), ensuring that these components can work stably. Since the battery is arranged outside the measuring module (2), it will not be affected by the high temperature or high humidity environment inside the module, thereby ensuring the stability of power supply. Furthermore, by arranging the rechargeable battery outside the measuring module (2), the operating temperature and heat dissipation conditions of the battery can be better controlled, thereby extending the service life of the battery. In addition, since the battery can be easily charged and replaced, this also indirectly extends the service life of the entire device. Finally, the rechargeable battery and the charging interface (4) are designed as independent modules, making the replacement and maintenance of these components simpler and more convenient. This helps to improve the maintainability and scalability of the device.

[0048] Optionally, a battery connection socket is provided on the upper surface of the first mainboard structure (21), and the battery connection socket is pluggably electrically connected to the rechargeable battery, and the battery connection socket has a plurality of power supply pins to electrically connect to at least the pressure sensor (211), the flow card, and the wireless communication module (221) for power supply.

[0049] For this reason, since the battery connector and the rechargeable battery are pluggable, when the rechargeable battery runs out of power or needs to be replaced, the user can easily unplug the battery from the connector and insert a new battery, thereby making the battery replacement process simple and quick, and also facilitating the maintenance of the battery connector and the battery itself. In addition, the design of the battery connector allows the use of different types of rechargeable batteries, as long as they meet the specifications and interface requirements of the connector, so that different types of batteries can be flexibly selected as needed to meet different usage scenarios and performance requirements and improve the power consumption capacity of the device. Furthermore, the battery connector has a number of power supply pins, which are electrically connected to at least key components such as the pressure sensor (211), the flow card, and the wireless communication module (221), ensuring that the device can obtain a stable power supply when working, thereby ensuring the normal operation of each component and the accuracy of the measurement results. Finally, through the design of the battery connector, it can be ensured that the connection between the battery and the mainboard is stable and safe, avoiding the potential safety hazards such as short circuit and leakage caused by the battery being directly exposed to the mainboard.

[0050] Optionally, the battery connection seat is also provided with a charging pin line, and the charging pin line is electrically connected to the charging interface (4) so ​​as to charge the rechargeable battery.

[0051] To this end, by integrating the charging pin line on the battery connector, the charging function and the battery connection function are unified, and an integrated design is achieved, thereby reducing the complexity of the circuit inside the device and improving the compactness and aesthetics of the overall structure. In addition, the user only needs to connect the charging device through the charging interface (4) to charge the rechargeable battery, without the need to find or connect other charging interfaces (4) in addition, which simplifies the charging process and improves the convenience of charging. Furthermore, since the charging pin line is directly connected to the battery connector, the charging pin line can only establish an effective electrical connection with the charging interface (4) when the battery is correctly installed on the connector, avoiding the risk of charging interruption or battery damage caused by misoperation. Finally, the design of the charging pin line ensures the safety of the charging process, ensuring that charging only starts when the battery is correctly installed and in close contact with the connector, and also avoiding charging anomalies and safety hazards caused by loose batteries or poor contact.

[0052] Optionally, the biochemical oxygen demand measuring device further comprises: an antenna, the antenna being arranged on the second main board structure (22) to enhance the wireless communication module (221) to wirelessly send the biological oxygen demand to a target device based on the flow card.

[0053] Optionally, an upper surface of the second mainboard structure (22) is provided with interactive indicator lights for displaying the working status of the biochemical oxygen demand measuring device, such as a charging indicator light, a standby indicator light, a measurement indicator light, a communication indicator light, etc.

[0054] To this end, the interactive indicator light can directly display the working status of the biochemical oxygen demand measuring device, so that the user can intuitively understand the operation of the device and make corresponding operations or adjustments. In addition, through the interactive indicator light, the user can quickly understand the status of the device without frequently checking the screen or reading complicated operating instructions. For example, when operating the device in a dark environment, the user can judge the working status of the device by observing the indicator light.

[0055] On the other hand, a water quality measurement system is provided, comprising: a biochemical oxygen demand measuring device as described in any one of the present application and a constant temperature box, wherein the biochemical oxygen demand measuring device is placed in the constant temperature box to provide a constant temperature environment for the measured water to perform biochemical reactions.

[0056] As mentioned above, in the present application, since the first main board structure (21) and the second main board structure (22) are arranged in an up-and-down positional relationship, the overall structure makes the measurement module (2) a stacked structure, thereby reducing the volume of the measurement module (2) as a whole, and can be matched with a smaller volume of the measured water container (3), thereby reducing the overall footprint of the biochemical oxygen demand measuring device. To this end, more biochemical oxygen demand measuring devices can be placed in the constant temperature box to perform multiple measurements on the same measured water in parallel, or to perform parallel measurements on different measured water, thereby improving the efficiency of the measurement.

[0057] It should be noted here that, for ordinary technicians in this field, the specific positions and specific methods of the above-mentioned various circuit structural components on the above-mentioned circuit board structure are not uniquely limited, as long as the purpose of the embodiments of the present application can be achieved.

[0058] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A biochemical oxygen demand measuring device, characterized in that: include: A housing (1), a measuring module (2), and a measured water container (3), wherein the measuring module (2) is mounted in the housing (1), the measured water container (3) is used to provide a constant temperature environment for the measured water to perform a biochemical reaction, and the measuring module (2) is mounted on the measured water container (3); the measuring module (2) comprises: a first main board structure (21) and a second main board structure (22), wherein the first main board structure (21) and the second main board structure (22) are arranged in an upper and lower position relationship; A pressure sensor (211) is provided on the lower surface of the first mainboard structure (21), the pressure sensor (211) facing the water to be tested in the water to be tested container (3), and used for real-time detection of pressure data in the water to be tested container (3) to calculate the biological oxygen demand of the water to be tested; The upper surface of the second mainboard structure (22) is provided with a wireless communication module (221), and the lower surface is provided with a flow card, the flow card being electrically connected to the wireless communication module (221), so that the wireless communication module (221) wirelessly transmits the biological oxygen demand to a target device based on the flow card.

2. The biochemical oxygen demand measuring device according to claim 1, characterized in that: The measurement module (2) further comprises: a mainboard structure connector (23), the mainboard structure connector (23) being located between the first mainboard structure (21) and the second mainboard structure (22), and having one end connected to the first mainboard structure (21) and the other end connected to the second mainboard structure (22), so that the first mainboard structure (21) and the second mainboard structure (22) are arranged in an upper and lower position relationship.

3. The biochemical oxygen demand measuring device according to claim 2, characterized in that: The first mainboard structure (21) and the second mainboard structure (22) are parallel to each other, so that the mainboard structure connector (23) forms a vertical connection relationship with the first mainboard structure (21) and the second mainboard structure (22).

4. The biochemical oxygen demand measuring device according to claim 2, characterized in that: A signal transmission line is arranged in the mainboard structure connector (23) to perform data transmission between the first mainboard structure (21) and the second mainboard structure (22).

5. The biochemical oxygen demand measuring device according to claim 1, characterized in that: The biochemical oxygen demand measuring device further comprises: a rechargeable battery and a charging interface (4); the charging interface (4) is arranged on the first main board structure (21) and can be exposed outside the measuring module (2) so as to charge the rechargeable battery; the rechargeable battery is arranged outside the measuring module (2) and is electrically connected to at least the pressure sensor (211), the flow card, and the wireless communication module (221) to supply power.

6. The biochemical oxygen demand measuring device according to claim 5, characterized in that: A battery connection socket is provided on the upper surface of the first mainboard structure (21), and the battery connection socket is pluggably electrically connected to the rechargeable battery. The battery connection socket has a plurality of power supply pins to electrically connect to at least the pressure sensor (211), the flow card, and the wireless communication module (221) for power supply.

7. The biochemical oxygen demand measuring device according to claim 6, characterized in that: The battery connection seat is also provided with a charging pin line, and the charging pin line is electrically connected to the charging interface (4) so ​​as to charge the rechargeable battery.

8. The biochemical oxygen demand measuring device according to claim 1, characterized in that: The biochemical oxygen demand measuring device further comprises: an antenna, which is arranged on the second main board structure (22).

9. The biochemical oxygen demand measuring device according to any one of claims 1 to 8, characterized in that: An interactive indicator light is arranged on the upper surface of the second main board structure (22) for displaying the working status of the biochemical oxygen demand measuring device.

10. A water quality measurement system, characterized in that: include: The biochemical oxygen demand measuring device and the thermostat as described in any one of claims 1 to 9, wherein the biochemical oxygen demand measuring device is placed in the thermostat to provide a constant temperature environment for the measured water to undergo biochemical reactions.

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