Linkage equipment control system for indoor overall thermal environment and local thermal regulation

Abstract

The invention provides a linkage equipment control system for indoor overall thermal environment and local thermal regulation. The linkage equipment control system comprises a parameter acquisition module used for acquiring and recording various real-time indoor parameters; the linkage logic calculation module is used for analyzing local and overall heat requirements and calculating a background temperature regulation expected value; and the thermal regulation equipment module is used for regulating and controlling the background temperature so as to reach the expected temperature value and meet the indoor thermal environment requirement. According to the invention, by using the pairing control connection between the Internet of Things infrared remote controller and the PECS equipment, and by setting the parameter acquisition module, the linkage logic calculation module and the thermal regulation equipment module, the background thermal environment regulation equipment can be intelligently regulated and controlled according to the thermal demand of a user, and the control of the high-comfort, low-carbon and healthy background thermal environment regulation equipment is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of indoor environment thermal comfort, and in particular to a control system and method for indoor overall thermal environment and local thermal regulation linkage equipment. Background Art

[0002] A Personalized Environmental Control System (PECS) is a system that can control the local environment of a workstation based on personal preferences, including heating, cooling, ventilation, lighting, and acoustics. Compared with traditional whole-room conditioning, PECS can significantly improve personal comfort, health, and greatly improve the energy efficiency of the entire heating, ventilation, and air conditioning (HVAC) system.

[0003] Market research has found that most commercially available PECS devices can be controlled by an IoT infrared remote control, and their data can be accessed through a WiFi network. Using the IoT infrared remote control as an intermediary, PECS devices are indirectly connected, allowing these devices to be controlled in real time through a smartphone app. As a common technology, the IoT infrared remote control is widely used in products with infrared remote control functions (such as wall-mounted air conditioners, televisions, projectors, etc.), and its scalability to other forms of PECS devices is very promising. Its pairing process is very simple. You only need to align the ordinary infrared remote control with the IoT infrared remote control transmitter so that the IoT infrared remote control can obtain control authority for the device.

[0004] Therefore, it is necessary to propose an overall thermal environment and local thermal regulation linkage device and control method suitable for office scenes. With the help of corresponding control logic, the environmental detection of indoor scenes and the thermal environment regulation equipment are linked to each other to find a more optimized indoor thermal environment solution, thereby improving the energy efficiency of the entire heating, ventilation and air conditioning (HVAC) system. Summary of the invention

[0005] The object of the present invention is to provide a device control system that can intelligently adjust background thermal environment adjustment equipment according to user thermal requirements.

[0006] To achieve the above object, the present invention proposes a control system for indoor overall thermal environment and local thermal regulation linkage equipment, comprising the following modules:

[0007] Parameter collection module: used to collect and record various real-time indoor parameters;

[0008] Linkage logic calculation module: connected to the parameter acquisition module signal through the host computer, used to analyze the local and overall thermal demand and calculate the expected value of background temperature control;

[0009] Thermal regulation device module: connected to the linkage logic calculation module signal through the Internet of Things infrared remote control, used to adjust the background temperature, so as to reach the expected temperature value and meet the indoor thermal environment requirements.

[0010] Furthermore, the data acquisition module is connected to the host computer signal through a router, the host computer is connected to the thermal regulation device module signal control through an Internet of Things infrared remote controller, and the Internet of Things infrared remote controller is paired and connected to the thermal regulation device module.

[0011] The parameter acquisition module collects various indoor parameters through data acquisition equipment and collection methods. The collected parameters are transmitted to the host computer (mobile phone or computer APP) through the router, and then analyzed and calculated by the logic control calculation module in the host computer (mobile phone or computer APP). The calculated adjustment expected value is transmitted to the thermal regulation device module through the Internet of Things infrared remote control, thereby controlling the thermal regulation device for control and adjustment.

[0012] Furthermore, in the parameter collection module, various indoor parameters are collected through collection equipment and collection methods, and the indoor parameters include environmental parameters, use of thermal regulation equipment and thermal comfort of personnel.

[0013] Furthermore, in the parameter acquisition module, environmental parameters are acquired through distributed environmental monitors, and the environmental parameters include indoor temperature, indoor humidity, personnel position, light intensity, and indoor air quality.

[0014] Furthermore, the linkage logic calculation module includes a local thermal control analysis submodule and an overall thermal control analysis submodule; the overall thermal control analysis submodule calculates the upper and lower limits of the thermal comfort temperature according to the CIBSE Guide A empirical formula, and then obtains the final adjustment plan by comparing the number of units in the comfort zone and the non-comfort zone; the local thermal control analysis submodule calculates the expected temperature change value by weighting the local thermal comfort demand data.

[0015] Furthermore, the control method based on the control system for the indoor overall thermal environment and local thermal regulation linkage equipment includes the following steps:

[0016] S1: Collect environmental parameters, equipment usage and personnel thermal comfort through parameter collection module;

[0017] S2: Through the linkage logic calculation module, the collected parameters are used to perform local thermal control analysis and overall thermal control analysis respectively to obtain the local expected temperature change value and the overall thermal control temperature range;

[0018] S3: According to the overall thermal control temperature range and the local expected temperature change value, the background temperature is regulated by the thermal regulation device module. If the expected value is not reached, steps S1-S3 are repeated. If the expected value is reached, the adjustment is terminated.

[0019] Furthermore, in step S2, the overall thermal regulation analysis method is:

[0020] Determine the upper and lower limits of the temperature comfort zone based on environmental parameters, equipment operating conditions and personnel thermal comfort, and obtain the number of units belonging to the comfort zone;

[0021] 2) Compare the number of units in the comfort zone and the non-comfort zone: If the number of units in the comfort zone is greater than that in the non-comfort zone, the overall temperature remains unchanged; otherwise, the difference between each unit and the upper and lower limits of the closest comfort zone is calculated, and multiple adjustment schemes are obtained based on the obtained limit differences. The scheme with the largest number of comfort zone rooms is selected as the final adjustment scheme.

[0022] Furthermore, in step S2, the method of local thermal regulation analysis is:

[0023] Adjust the local temperature of each PECS device according to the initial set temperature, and record the temperature adjustment value of each PECS device;

[0024] Determine whether the sum of the temperature adjustment values ​​of each PECS device is within the total temperature adjustment range: if it is within the range, the initial setting plan is set as the final adjustment plan; otherwise, it is adjusted according to the linkage logic.

[0025] Furthermore, step S3 is specifically as follows: according to the overall thermal control temperature range and the local expected temperature change value, the indoor temperature is adjusted to within the overall thermal control temperature range, and it is determined whether the expected value is reached: if the expected value is reached, the adjustment is terminated; otherwise, steps S1-S3 are repeated.

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] 1. The present invention utilizes the paired control connection of the Internet of Things infrared remote control and the PECS device. By setting the parameter acquisition module, the linkage logic calculation module and the thermal regulation device module, it can intelligently adjust the background thermal environment regulation device according to the user's thermal demand, thereby realizing high comfort, low carbonization and healthy background thermal environment regulation device control.

[0028] 2. The present invention combines overall thermal analysis with local thermal analysis to ensure that as many rooms as possible are within the comfort zone, while significantly adjusting the temperature distribution in different rooms. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1This is a flow chart of a control system for an indoor overall thermal environment and local thermal regulation linkage device according to an embodiment of the present invention;

[0030] Figure 2 This is a working diagram of a parameter acquisition module in a control system according to an embodiment of the present invention;

[0031] Figure 3 It is a schematic flow chart of an overall thermal control analysis method of a linkage logic calculation module in a control system according to an embodiment of the present invention;

[0032] Figure 4 The figure is a flow chart of a local thermal control analysis method of a linkage logic calculation module in a control system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described below.

[0034] This embodiment proposes a control system for indoor overall thermal environment and local thermal regulation linkage equipment, which is mainly used in office scenes, such as Figure 1 As shown, the system includes a parameter acquisition module, a linkage logic calculation module and a thermal regulation device module.

[0035] The parameter acquisition module collects and records various real-time indoor parameters through acquisition equipment and acquisition methods. In this embodiment, Figure 2 As shown, the distributed environmental detectors and PECS devices are linked to each other to capture and adjust the uneven environment in space and time dimensions. The acquisition equipment includes distributed environmental monitors and equipment parameter sensors. The environmental parameters are obtained through distributed environmental monitors. The environmental parameters mainly include indoor temperature and humidity, personnel position and other environmental parameters (light intensity, indoor air quality and other parameters); the use status of each thermal adjustment PECS device (desktop fan, leg warmer, air conditioner) is obtained through the equipment parameter sensor; the thermal comfort feeling of indoor personnel is collected through the personnel thermal comfort voting method. The connection between the parameter sensor and the adjustment device is realized by connecting the IoT infrared remote control to the router.

[0036] The real-time indoor parameters collected by the parameter acquisition module are transmitted to the smartphone APP through the router, the IoT infrared remote control is paired with each thermal regulation PECS device, and real-time control is performed through the linkage logic calculation module in the smartphone APP.

[0037] In this embodiment, the linkage logic calculation module includes a local thermal regulation analysis submodule and an overall thermal regulation analysis submodule, wherein the overall thermal regulation analysis submodule calculates the upper and lower limits of thermal comfort temperature according to the CI BSE Guide A empirical formula, and then obtains the final adjustment plan by comparing the number of units in the comfort zone and the non-comfort zone; the local thermal regulation analysis submodule calculates the expected temperature change value by weighting the local thermal comfort demand data. The linkage logic calculation module uses the collected parameters to perform local thermal regulation analysis and overall thermal regulation analysis respectively, and calculates the local expected temperature change value and the overall thermal regulation expected temperature range. The specific method is:

[0038] 1) Conduct overall thermal regulation analysis, such as Figure 3 As shown:

[0039] 1.1) Using the collected parameters (environmental parameters, equipment operating conditions and personnel thermal comfort), calculate the upper and lower limits of thermal comfort temperature according to the CIBSE Guide A empirical formula to determine the upper and lower limits of the temperature comfort zone [T 下限 ,T 上限 ], and get the number of units N belonging to the comfort zone in ; Count the number of comfort zones and discomfort zones, denoted as N in , N out .

[0040] 1.2) Compare the number of units in the comfort zone and the discomfort zone: If the number of units in the comfort zone is greater than that in the discomfort zone, that is, N in >N out , the overall temperature remains unchanged and maintains the original temperature; on the contrary, if N in <N out , the difference between each unit and the upper and lower limits of the closest comfort zone is calculated according to the following formula:

[0041]

[0042] (D1, D2, D3, D4......)

[0043]

[0044] Among them, D i Represents the required adjustment temperature, T i,调整后 represents the adjusted temperature;

[0045] According to the obtained limit difference value, multiple adjustment schemes are obtained, and the scheme with the largest number of comfort zone rooms is selected as the final adjustment scheme. The expression formula is: N i (D i )=MAX{D1,D2,D3,D4......}

[0046] 2) Conduct local thermal regulation analysis, such as Figure 4 As shown:

[0047] 2.1) Set each PECS device according to the initial set temperature T 设置 Adjust the local temperature and record the temperature adjustment value of each PECS device. The temperature adjustment value of PECS1 is recorded as ΔT1, and the temperature adjustment value of PECS2 is recorded as ΔT2. i The temperature adjustment value is recorded as ΔT i ;

[0048] 2.2) Calculate the sum of the temperature adjustment values ​​of each PECS device ∑ΔT i ∈[T 低 , T 高 ], where T 低 Represents the lower limit temperature of the comfort zone, T 高 Represents the upper temperature limit of the comfort zone;

[0049] 2.3) Determine the sum of the temperature adjustment values ​​of each PECS device ∑ΔT i Is it in the total temperature adjustment range: If it is in the range, the initial set temperature T 设置 Set as the final adjusted temperature T, 设置 =T 设置 Otherwise, it will be adjusted according to the linkage logic. The adjustment method is as follows:

[0050] If ∑ΔT i >T 高 , the final adjusted temperature T, 设置 =T 设置 +T 高 ; If ∑ΔT i <T 低 , the final adjusted temperature T, 设置 =T 设置 +T 低 .

[0051] The finally obtained adjusted temperature is transmitted to the heat regulating device module. The heat regulating device module intelligently controls the background and the local heat regulating device according to the overall final adjustment plan and the local expected temperature change, controls the temperature bar within the required range, and then determines whether it reaches the expected range. If not, repeat the above-mentioned steps such as parameter collection and linkage logic calculation of the heat regulating device; if it reaches the expected temperature range, the intelligent control is successfully realized, the expected temperature value is reached, and the indoor thermal environment requirements are met.

[0052] The above is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, makes any form of equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which does not depart from the content of the technical solution of the present invention and still falls within the protection scope of the present invention.

Claims

1. A control system for indoor overall thermal environment and local thermal regulation linkage equipment, characterized in that: Includes the following modules: Parameter collection module: used to collect and record various real-time indoor parameters; Linkage logic calculation module: connected to the parameter acquisition module signal through the host computer, used to analyze the local and overall thermal demand and calculate the expected value of background temperature control; Thermal regulation device module: connected to the linkage logic calculation module signal through the Internet of Things infrared remote control, used to adjust the background temperature, so as to reach the expected temperature value and meet the indoor thermal environment requirements.

2. The control system for indoor overall thermal environment and local thermal regulation linkage equipment according to claim 1 is characterized in that: The data acquisition module is connected to the host computer signal through a router, and the host computer is connected to the thermal regulation device module signal control through an Internet of Things infrared remote controller, and the Internet of Things infrared remote controller is paired and connected to the thermal regulation device module.

3. The control system for indoor overall thermal environment and local thermal regulation linkage equipment according to claim 1 is characterized in that: In the parameter collection module, various indoor parameters are collected through collection equipment and collection methods. The indoor parameters include environmental parameters, use of thermal adjustment equipment and thermal comfort of personnel.

4. The control system for indoor overall thermal environment and local thermal regulation linkage equipment according to claim 3 is characterized in that: In the parameter acquisition module, environmental parameters are acquired through distributed environmental monitors, and the environmental parameters include indoor temperature, indoor humidity, personnel position, light intensity, and indoor air quality.

5. The control system for indoor overall thermal environment and local thermal regulation linkage equipment according to claim 1, characterized in that: The linkage logic calculation module includes a local thermal regulation analysis submodule and an overall thermal regulation analysis submodule; the overall thermal regulation analysis submodule calculates the upper and lower limits of thermal comfort temperature according to the CIBSE Guide A empirical formula, and then obtains the final adjustment plan by comparing the number of units in the comfort zone and the non-comfort zone; the local thermal regulation analysis submodule calculates the expected temperature change value by weighting the local thermal comfort demand data.

6. The control system for indoor overall thermal environment and local thermal regulation linkage equipment according to claim 1, characterized in that: The control method based on the control system comprises the following steps: S1: Collect environmental parameters, equipment usage and personnel thermal comfort through parameter collection module; S2: Through the linkage logic calculation module, the collected parameters are used to perform local thermal control analysis and overall thermal control analysis respectively to obtain the local expected temperature change value and the overall thermal control temperature range; S3: According to the overall thermal control temperature range and the local expected temperature change value, the background temperature is regulated by the thermal regulation device module. If the expected value is not reached, steps S1-S3 are repeated. If the expected value is reached, the adjustment is terminated.

7. The control system for indoor overall thermal environment and local thermal regulation linkage equipment according to claim 6, characterized in that: In step S2, the overall thermal regulation analysis method is: 1) Determine the upper and lower limits of the temperature comfort zone based on environmental parameters, equipment operating conditions and personnel thermal comfort, and obtain the number of units belonging to the comfort zone; 2) Compare the number of units in the comfort zone and the discomfort zone: If the number of units in the comfort zone is greater than that in the discomfort zone, the overall temperature remains unchanged; Otherwise, the difference between each unit and the upper and lower limits of the closest comfort zone is calculated, and multiple adjustment plans are obtained based on the obtained limit differences. The plan with the largest number of comfort zone rooms is selected as the final adjustment plan.

8. The control system for indoor overall thermal environment and local thermal regulation linkage equipment according to claim 6, characterized in that: In step S2, the method of local thermal regulation analysis is: 1) Adjust the local temperature of each PECS device according to the initial set temperature and record the temperature adjustment value of each PECS device; 2) Determine whether the sum of the temperature adjustment values ​​of each PECS device is within the total temperature adjustment interval: if it is within the interval, set the initial setting plan as the final adjustment plan; Otherwise, it will be adjusted according to the linkage logic.

9. The control system for indoor overall thermal environment and local thermal regulation linkage equipment according to claim 6, characterized in that: Step S3 is specifically as follows: according to the overall thermal control temperature range and the local expected temperature change value, the indoor temperature is adjusted to within the overall thermal control temperature range, and whether the expected value is reached: if the expected value is reached, the adjustment is terminated; otherwise, steps S1-S3 are repeated.

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