Multi-sensor fusion air conditioner structure

Abstract

The utility model discloses a kind of multi-sensor fusion air conditioner structure to overcome the risk resistance ability insufficient caused by traditional air conditioner structure dependence single temperature detection control point. The structure contains environment room, air conditioning unit, multiple temperature detection points, return valve and control unit;Air conditioning unit is located outside environment room, responsible for adjusting environment room temperature. Temperature detection point in environment room real-time acquisition temperature and connect to return valve, return valve connects air conditioning unit to adjust its work efficiency. Temperature detection point is connected to control unit in parallel, control unit compares detection point current with preset current, judges whether detection point is effective. When single detection point is abnormal, redundant detection point can be used, avoid monitoring interruption or regulation out of control, significantly improve system risk resistance ability, guarantee environment room temperature stability.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning system technology, specifically to an air conditioning structure that integrates multiple sensors. Background Technology

[0002] In the production of substrate glass, the hot-end processes such as melting and forming require maintaining a specific temperature range, which is crucial for ensuring stable production and product quality. These hot-end processes are high-heat areas, and the dynamic temperature balance between these environments must be achieved through the temperature regulation mechanism of the air conditioning system.

[0003] The existing temperature regulation mechanism of air conditioning systems automatically adjusts the opening of the return water control valve on the cooling coil side of the air conditioning unit based on the deviation between a single temperature detection control point and the set temperature value. This mechanism, which relies on a single temperature detection control point, has significant drawbacks: once an abnormality occurs in temperature detection, it can easily disrupt the dynamic temperature balance between the environments, resulting in weak system resilience; after an abnormal temperature detection, emergency measures must be taken and superior resources must be concentrated for unplanned maintenance, significantly increasing maintenance costs; from system warning and equipment failure troubleshooting to the ambient temperature reaching the standard, a long manual processing time is required, resulting in a prolonged ambient temperature recovery period.

[0004] Therefore, there is an urgent need for a multi-sensor fusion air conditioning structure to overcome the problems of insufficient risk resistance caused by the reliance on a single temperature detection and control point in traditional air conditioning structures. Utility Model Content

[0005] The purpose of this invention is to provide an air conditioning structure that integrates multiple sensors, so as to overcome the insufficient risk resistance caused by the reliance on a single temperature detection and control point in traditional air conditioning structures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An air conditioning structure with multi-sensor fusion includes multiple temperature detection points set inside an ambient room and an air conditioning unit set outside the ambient room, the air conditioning unit adjusting the temperature inside the ambient room; The environmental room is equipped with multiple temperature detection points, including main detection points and redundant detection points; each temperature detection point is connected to a return water valve, which is connected to the air conditioning unit and is used to adjust the efficiency of the air conditioning unit. A control unit is installed between the return water valve and the temperature detection point. The temperature detection point is connected to the control unit in parallel. The control unit compares the current of the temperature detection point with the preset current to determine whether the temperature detection point has lost its effective state.

[0007] The control unit associates the main detection points with the opening degree of the return water valve; when the main detection points are no longer in an effective state, the control unit switches to associate redundant detection points with the opening degree of the return water valve.

[0008] When the main detection point is no longer in an effective state, the control unit receives an external command to associate the redundant detection points with the opening degree of the return water valve.

[0009] When the main detection point is no longer in an effective state, the control unit automatically associates the redundant detection points with the opening degree of the return water valve.

[0010] The control unit has a built-in PLC. The PLC compares the temperature value obtained from the temperature detection point associated with the return water valve with the preset temperature value to determine the opening degree of the return water valve.

[0011] The control unit triggers a warning signal after determining that the temperature detection point has lost its effective state.

[0012] The air conditioning unit is equipped with a cooling coil, which is connected to the return water valve.

[0013] The preset current is 4-20mA.

[0014] The environment is divided into zones according to the heat intensity of the equipment, and the density of the temperature detection points is adapted according to the zones.

[0015] Environmental spaces are classified according to process heat flux density as follows: In areas with high equipment heat intensity, the density of temperature monitoring points is 50m². 2 Set up 3-4 temperature detection points; In the area of ​​high heat intensity of the equipment, the density of temperature detection points in this area is 50m². 2 Set up 2-3 temperature detection points; In areas with low equipment heat intensity, the density of temperature monitoring points is 50m². 2 Two temperature detection points were set up.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: This invention provides a multi-sensor fusion air conditioning structure that sets up multiple temperature detection points within the environment, rather than relying on a single detection point for temperature monitoring. When the main detection point malfunctions, redundant detection points can serve as backup monitoring carriers, preventing a complete interruption of monitoring function due to the failure of a single point. The temperature detection points are connected to the control unit in parallel, ensuring that the control unit receives signals from all detection points simultaneously. Even if one detection point fails, it will not affect the data transmission from other detection points to the control unit, ensuring the overall stability of the temperature monitoring network, unlike traditional structures where the entire monitoring link is paralyzed due to the failure of a single detection point. The control unit can also compare the current of the temperature detection point with the preset current to determine in real time whether the detection point has lost its effective state. Once an abnormality is detected at a detection point, the adjustment basis can be switched to other effective detection points in a timely manner, avoiding interference from the data of abnormal detection points with temperature regulation. At the same time, the temperature detection points are directly connected to the return water valve, and the return water valve is associated with the linkage logic of the air conditioning unit, allowing the monitoring data of the effective detection points to continuously support the efficiency adjustment of the air conditioning unit. This ensures that even if a single detection point fails, other effective detection points will still drive the normal operation of the temperature regulation function, significantly improving the system's resilience to detection point failures. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an air conditioning structure with multi-sensor fusion in an embodiment of this utility model.

[0018] In the diagram, 1 is the ambient room; 2 is the temperature detection point; 3 is the air conditioning unit; 4 is the cooling coil; and 5 is the return water valve. Detailed Implementation

[0019] During the production of substrate glass, the hot-end process environment needs to be maintained within a specific temperature range to ensure stable production and product quality. The dynamic balance of temperature between environments needs to be achieved through the temperature regulation mechanism of the air conditioning system.

[0020] The existing air conditioning system's temperature regulation mechanism relies on a single temperature detection point in the environment to adjust the opening of the automatic control valve for the return water of the cooling coil on the air conditioning unit side. This mechanism has significant drawbacks: an abnormal temperature detection point can easily disrupt the dynamic temperature balance between the environments, resulting in weak system resilience and necessitating unplanned maintenance and emergency response measures. Furthermore, the process from system warning and equipment troubleshooting to achieving the required ambient temperature takes considerable manual time, leading to a prolonged ambient temperature recovery period.

[0021] Therefore, there is an urgent need for a multi-sensor fusion air conditioning structure to overcome the problems of insufficient risk resistance caused by the reliance on a single temperature detection and control point in traditional air conditioning structures.

[0022] Based on the above background, this utility model proposes a multi-sensor fusion air conditioning structure. By setting multiple temperature detection points in the environment, and having the control unit determine the validity of each detection point, it breaks through the limitations of traditional single detection points. When one detection point malfunctions, redundant detection points can support temperature regulation, avoiding temperature imbalance caused by the failure of a single detection point and effectively improving resilience.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0027] Reference Figure 1As shown, this is a specific implementation of the multi-sensor fusion air conditioning structure provided by the present invention, including multiple temperature detection points 2 set in the environmental room 1 and an air conditioning unit 3 set outside the environmental room, the air conditioning unit 3 adjusting the temperature in the environmental room 1. Multiple temperature detection points 2 are set up in the environmental room 1, including main detection points and redundant detection points; temperature detection points 2 are connected to return water valves 5, which are connected to air conditioning units 3, and the return water valves 5 are used to adjust the efficiency of air conditioning units 3. A control unit is installed between the return water valve 5 and the temperature detection point 2. The temperature detection point 2 is connected in parallel to the control unit. The control unit compares the current of the temperature detection point 2 with the preset current to determine whether the temperature detection point 2 has left the effective state.

[0028] In this embodiment, the ambient room 1 is the core working space for hot-end processes such as substrate glass melting and molding. The air conditioning unit 3 is located outside the ambient room 1 and forms a temperature regulation loop with the ambient room 1 through pipelines, specifically providing stable temperature control for the ambient room 1 to meet the process requirements for temperature range.

[0029] Multiple temperature monitoring points 2 within the ambient room 1 collect temperature data in real time. These monitoring points are divided into primary and redundant points, forming a temperature monitoring network. The primary monitoring points serve as the core for daily temperature data collection, while the redundant points act as backups to prevent data interruption due to the failure of a single monitoring point. It should be noted that the primary and redundant monitoring points are not fixed. The one currently associated with the return water valve 5 is the primary monitoring point, and the rest are redundant. Their roles can be dynamically adjusted based on their association status. All temperature monitoring points 2 are connected to the return water valve 5 via wiring. The return water valve 5 connects to one end of the temperature monitoring point 2 and the other end to the air conditioning unit 3, acting as a regulating switch for the air conditioning unit 3. By changing its opening degree, it controls the amount of cooling or heating delivered by the air conditioning unit 3 to the ambient room 1, thereby regulating the efficiency of the air conditioning unit 3.

[0030] The control unit, located between the return valve 5 and temperature detection point 2, is the core of the entire system. Temperature detection point 2 is connected to the control unit in parallel. This connection allows the control unit to simultaneously receive current signals from all detection points, preventing a failure at one detection point from affecting data transmission to other points. The control unit compares the current value of each detection point with a preset current. If the current at a detection point exceeds this range, it can quickly determine that the detection point has lost its effective state, preventing invalid data from participating in temperature regulation.

[0031] This combination of components can avoid the dependence on traditional single detection points by using multiple detection points, and can ensure the validity of temperature data by using the real-time judgment of the control unit. Then, the efficiency of the air conditioning unit 3 can be precisely adjusted by the return water valve 5, and finally the temperature of the ambient room 1 can be stably controlled, reducing production fluctuations caused by abnormal detection points.

[0032] It should be noted that the control unit in this application can be implemented in hardware, such as a PLC. The PLC presets a current threshold for judging the validity of the detection point. After the temperature detection point 2 collects the current signal, the control unit only performs a simple numerical comparison between the current signal and the preset threshold. These are all conventional technical means. Based on the comparison result, it is determined whether the temperature detection point 2 has left the effective state, so as to ensure the normal operation of the subsequent temperature regulation function.

[0033] In another specific embodiment of the multi-sensor fusion air conditioning structure provided by this utility model, the environmental space 1 is divided into different areas according to the heat intensity of the equipment. In this specific embodiment, the melting zone is the high heat intensity area, the forming zone is the medium heat intensity area, and the auxiliary operation zone is the low heat intensity area. The density of temperature detection points 2 in different areas is adapted according to the heat intensity, and each area includes main detection points and redundant detection points. The heat is concentrated in the high heat intensity area, and 3-4 temperature detection points 2 are arranged every 50m2 to capture temperature changes more densely; the heat is relatively moderate in the medium heat intensity area, and 2-3 temperature detection points 2 are arranged every 50m2 to ensure monitoring accuracy while avoiding resource waste; the heat is less in the low heat intensity area, and 2 temperature detection points 2 are arranged every 50m2 to meet the basic temperature monitoring needs. This zoning adaptation method makes the temperature detection more in line with the actual working conditions and avoids detection blind spots. Moreover, the temperature detection points 2 in the same area are evenly distributed, and the distance between adjacent detection points does not exceed ±0.2 meters, further ensuring that there are no dead angles in the thermal field coverage.

[0034] The air conditioning unit 3 is equipped with a cooling coil 4, which is directly connected to a return water valve 5. The return water valve 5 acts as a flow control switch for the cooling coil 4. When the opening of the return water valve 5 is adjusted, it changes the amount of chilled or hot water flowing into the cooling coil 4, thereby changing the heat exchange efficiency of the cooling coil 4. Ultimately, this regulates the output cooling or heating capacity of the air conditioning unit 3, providing core support for temperature control in the ambient room 1. Simultaneously, the system sets limit protection for the opening of the return water valve 5: the maximum opening does not exceed 90% to prevent excessive chilled or hot water flow from causing condensation or overload on the cooling coil 4; the minimum opening is not less than 10% to prevent the valve from completely closing, which could lead to freezing and cracking of the cooling coil 4 or system pressure buildup. If the adjustment demand exceeds the limit range, the system will execute according to the limit value and trigger an over-limit warning.

[0035] The control unit is the core of the entire structure. On one hand, it associates the main detection points with the opening of the return water valve 5, and controls the return water valve 5 daily based on the temperature data collected from the main detection points. For example, when the main detection point detects that the ambient temperature is higher than the preset value, the control unit will adjust the opening of the return water valve 5 to increase the heat exchange efficiency of the cooling coil 4 and lower the ambient temperature. If the main detection point is out of the effective state, the control unit compares the current at the detection point with the preset current of 4-20mA. If the current exceeds this range, it is considered abnormal, and the judgment process is set with a preset delay time of 3-5 seconds: after detecting an abnormal current, the current value is continuously monitored. If it does not return to the normal range within the delay time, it is determined that the effective state has been lost, avoiding misjudgment caused by instantaneous fluctuations.

[0036] The control unit has two switching modes: one is to receive external commands, manually select and associate redundant detection points with the opening degree of return water valve 5; the other is automatic switching, which associates redundant detection points with the opening degree of return water valve 5 without manual intervention, ensuring uninterrupted temperature regulation. It should be noted that the above automatic switching process is implemented through the control unit's built-in PLC. The PLC only presets the detection point priority determination logic (such as distance and historical fluctuation data comparison rules) and switching trigger conditions. The entire switching process relies solely on the PLC's invocation of preset rules and simple logical judgments, requiring no complex software programs; all are conventional hardware implementations. The switching between manual and automatic modes must be completed through the control unit's human-machine interface and can only be operated by authorized maintenance personnel. After switching, the system records the operator, operation time, and the effective period of the mode for later traceability. If multiple backup detection points exist, automatic switching prioritizes the redundant detection point closest to the abnormal detection point (e.g., a distance ≤ 1.5 meters) and with the smallest historical data fluctuations, ensuring the continuity and accuracy of the detection data.

[0037] On the other hand, the control unit has a built-in PLC. The PLC specifically compares the actual temperature value obtained from temperature detection point 2 associated with the return water valve 5 with the preset target temperature value, whether it is the main detection point or the redundant detection point after switching. The greater the deviation between the two, the more accurate the PLC's judgment on the opening adjustment of the return water valve 5, allowing the ambient temperature to approach the preset value more quickly. Furthermore, the PID control algorithm within the PLC supports parameter adjustment. Multiple sets of proportional coefficients, integral times, and derivative times can be preset according to different process stages in substrate glass production, such as the melting and heating period and the molding stabilization period. The system can automatically call the corresponding parameters to adapt to the temperature control requirements of different stages. It should be noted that the PLC's temperature value comparison process is only a simple numerical comparison, and although the PID control algorithm within the PLC supports parameter adjustment, the algorithm itself is conventional control logic. Multiple sets of proportional coefficients, integral times, and derivative times can be preset according to different process stages in substrate glass production, such as the melting and heating period and the molding stabilization period. The system can automatically call the corresponding parameters to adapt to the temperature control requirements of different stages. The above parameter calling and algorithm execution are all implemented by the PLC hardware, requiring no additional complex software support. Meanwhile, once the control unit determines that any temperature detection point 2 has lost its effective state, it will immediately trigger an early warning signal. The early warning signal includes local audio and visual prompts and a pop-up window on the remote monitoring platform, and also includes the location of the abnormal detection point, the type of abnormality (current higher than 20mA or lower than 4mA) and the duration of the abnormality, so that staff can quickly locate the fault and avoid temperature runaway due to the failure of the detection point.

[0038] The multi-sensor fusion air conditioning structure provided by this utility model not only ensures the rationality of temperature acquisition through zoned and adapted detection points, but also achieves precise heat exchange through the cooperation of return water valve 5 and surface cooling coil 4. In addition, the associated switching of the control unit, PLC adjustment and early warning functions can not only deal with the abnormal situation of the main detection points, but also make the temperature control more stable, and further reduce the risks caused by temperature fluctuations in the production process.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air conditioning structure with multi-sensor fusion, characterized in that, It includes multiple temperature detection points (2) set in the environmental room (1) and an air conditioning unit (3) set outside the environmental room. The air conditioning unit (3) adjusts the temperature in the environmental room (1). The environmental room (1) is equipped with multiple temperature detection points (2), including main detection points and redundant detection points; the temperature detection points (2) are connected to a return water valve (5), which is connected to the air conditioning unit (3). The return water valve (5) is used to adjust the efficiency of the air conditioning unit (3). A control unit is set between the return valve (5) and the temperature detection point (2). The temperature detection point (2) is connected in parallel to the control unit. The control unit compares the current of the temperature detection point (2) with the preset current to determine whether the temperature detection point (2) has left the effective state.

2. The air conditioning structure with multi-sensor fusion according to claim 1, characterized in that, The control unit associates the main detection point with the opening degree of the return valve (5); when the main detection point is out of the effective state, the control unit switches to associate the redundant detection point with the opening degree of the return valve (5).

3. The air conditioning structure with multi-sensor fusion according to claim 2, characterized in that, When the main detection point is out of the effective state, the control unit receives an external instruction to associate the redundant detection point with the opening degree of the return valve (5).

4. The air conditioning structure with multi-sensor fusion according to claim 2, characterized in that, When the main detection point is out of the effective state, the control unit automatically associates the redundant detection point with the opening degree of the return valve (5).

5. The air conditioning structure with multi-sensor fusion according to claim 2, characterized in that, The control unit has a built-in PLC. The PLC compares the temperature value obtained from the temperature detection point (2) associated with the return valve (5) with the preset temperature value to determine the opening degree of the return valve (5).

6. The air conditioning structure with multi-sensor fusion according to claim 1, characterized in that, The control unit triggers an early warning signal after determining that the temperature detection point (2) has left the effective state.

7. The air conditioning structure with multi-sensor fusion according to claim 1, characterized in that, The air conditioning unit (3) is equipped with a cooling coil (4), which is connected to the return water valve (5).

8. The air conditioning structure with multi-sensor fusion according to claim 1, characterized in that, The preset current is 4-20mA.

9. The air conditioning structure with multi-sensor fusion according to claim 1, characterized in that, The environment (1) is divided into zones according to the heat intensity of the equipment, and the density of the temperature detection points (2) is adapted according to the zones.

10. The air conditioning structure with multi-sensor fusion according to claim 9, characterized in that, The environmental spaces (1) are classified according to process heat flux density as follows: In areas with high equipment heat intensity, the density of temperature detection points (2) in this area is 3-4 temperature detection points (2) per 50m2; In the area of ​​equipment heat intensity, the temperature detection points (2) in this area are arranged at a density of 2-3 temperature detection points (2) per 50m2; In areas with low equipment heat intensity, the density of temperature detection points (2) in this area is 2 temperature detection points (2) per 50m2.

Images