Control method, system and equipment of intelligent building central air conditioner and medium

Abstract

The invention discloses a control method, system and equipment of an intelligent building central air conditioner and a medium, and relates to the field of intelligent building control. The method comprises the following steps: acquiring a first image of a first camera at an interval of first preset time, and judging whether the number of people in the first image exceeds a first number of people threshold; when the number of people in the first image exceeds a first number of people threshold, acquiring a first code of the first camera, and determining a first air outlet group corresponding to the first camera according to the first code based on a first preset corresponding relation; determining a target temperature sensor group corresponding to the first camera according to the code based on a second preset corresponding relation, acquiring a first temperature value of a first sub-temperature sensor in the target temperature sensor group, and controlling opening and closing of a corresponding air outlet in the first air outlet group according to the first temperature value, the first sub temperature sensor is any temperature sensor in the target temperature sensor group. By implementing the technical scheme provided by the invention, the management efficiency and the user experience of the building central air conditioner are improved.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent building control, and in particular to a control method, system, electronic device and storage medium for a central air conditioner in an intelligent building. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, the intelligent control and management of central air-conditioning systems, as an important part of building environmental control, are becoming increasingly important. Through reasonable control methods, accurate adjustment of environmental parameters such as temperature and humidity in buildings can be achieved, improving user comfort while reducing energy consumption.

[0003] Most existing central air conditioning control methods are based on fixed schedules or preset temperature thresholds for regulation, and lack the ability to flexibly adapt to actual conditions. For example, some control methods may only open or close the air outlets during a specific time period, and cannot dynamically adjust the opening and closing status of the air outlets according to changes in the number of people in the building. This control method may not only lead to energy waste, but may also fail to provide sufficient cooling or heating effects when there are a large number of people, affecting the comfort of the residents. In addition, regulating the central air conditioner through temperature thresholds requires the temperature sensor to work in real time, and there are often a large number of temperature sensors in the building. If these temperature sensors are always turned on, it will generate huge energy consumption.

[0004] Therefore, how to achieve intelligent control of the building's central air-conditioning system, automatically adjust the opening and closing and temperature of the air outlet in real time according to the flow of people, and reduce overall energy consumption has become a technical problem that technical personnel in this field need to solve. Summary of the invention

[0005] The present application provides a control method, system, electronic device and storage medium for a central air conditioner in an intelligent building, which can automatically adjust the opening and closing and temperature of the air outlet in real time according to the flow of people and reduce the overall energy consumption.

[0006] In a first aspect of the present application, a control method for a central air conditioner in an intelligent building is provided, which is applied to a central air conditioner control platform. The control method comprises: Acquire a first image from a first camera at a first preset time interval, and determine whether the number of people in the first image exceeds a first number threshold; When the number of people in the first image exceeds the first number threshold, obtaining a first code of the first camera, and determining a first air outlet group corresponding to the first camera according to the first code based on a first preset corresponding relationship; Based on the second preset correspondence, the target temperature sensor group corresponding to the first camera is determined according to the code, the first temperature value of the first sub-temperature sensor in the target temperature sensor group is obtained, and the opening and closing of the corresponding air outlet in the first air outlet group is controlled according to the first temperature value, and the first sub-temperature sensor is any one temperature sensor in the target temperature sensor group.

[0007] By adopting the above technical solution, the first image of the first camera can be obtained at intervals of the first preset time, and it can be determined in real time whether the number of people in the image exceeds the first number threshold. This real-time performance ensures that the system can respond quickly to changes in the number of people, thereby adjusting the air outlet state of the central air conditioner. When the camera detects that the number of people exceeds the threshold, the system can automatically obtain the camera code and determine the corresponding air outlet group and target temperature sensor group based on the preset corresponding relationship. No manual intervention is required in this process, and intelligent temperature management is realized. According to the first temperature value of the first sub-temperature sensor in the target temperature sensor group, the central air conditioning control platform can control the opening and closing of the corresponding air outlet in the first air outlet group. This means that the central air conditioning control platform can perform personalized temperature adjustment according to the actual temperature conditions of each area to ensure the comfort of each area. By accurately controlling the opening and closing of each air outlet, unnecessary energy consumption can be avoided, especially in areas with fewer people, some air outlets can be closed to save energy. Based on the preset corresponding relationship, the control method can be easily extended to multiple cameras and air outlet groups to realize intelligent temperature management of the entire building. Since the air outlet state can be adjusted in real time according to the distribution of people and temperature conditions, it can provide users with a more comfortable and energy-saving indoor environment and improve user experience.

[0008] Optionally, the control method includes: Divide each floor of the building into an area, and assign a unique first code to each camera, wherein the first code includes a floor number, an area number, and a first serial number; Assigning a unique second code to each air outlet, wherein the second code includes a floor number, an area number, a first group number, and a second serial number; Assigning a unique third code to each temperature sensor, wherein the third code includes a floor number, an area number, a second group number and a third serial number; A first preset corresponding relationship between the first code and the second code is established according to the position relationship, a second preset corresponding relationship between the first code and the third code is established, and a third preset corresponding relationship between the second code and the third code is established.

[0009] By adopting the above technical solution, each floor of the building is divided into regions, and unique codes are assigned to cameras, air outlets and temperature sensors, so that the central air-conditioning control platform can accurately locate and manage each device. It ensures that when the central air-conditioning control platform receives specific instructions or data, it can accurately identify and act on the target device. The multiple preset correspondences established enable the central air-conditioning control platform to intelligently identify the air outlets and temperature sensors in the corresponding area based on the image data of the camera, thereby realizing temperature control of the area. This intelligent operation greatly improves the response speed and accuracy of the central air-conditioning control platform. The establishment of codes and correspondences is based on a standardized model, which allows the central air-conditioning control platform to be easily expanded to more floors, regions and devices. When a new camera, air outlet or temperature sensor needs to be added, it is only necessary to assign a new code to it according to the same coding rules and update the relevant information in the correspondence. Since each device has a unique code, when a failure or problem occurs in the central air-conditioning control platform, the specific device can be quickly located and targeted troubleshooting and repair can be carried out. This greatly reduces the time and difficulty of troubleshooting. By establishing corresponding relationships, the central air conditioning control platform can integrate data from different devices to form a complete building environment data set. This data can be used for further analysis and mining to optimize the building's temperature control strategy, improve energy efficiency, and enhance user comfort. Since the encoding and corresponding relationships are based on location relationships, the central air conditioning control platform can flexibly adjust the layout and configuration of the equipment. For example, when the number of devices in a certain area changes, only the corresponding relationship needs to be updated without making large-scale modifications to the entire central air conditioning control platform.

[0010] Optionally, controlling the opening and closing of corresponding air outlets in the first air outlet group according to the first temperature value includes: Determine the target air outlet group corresponding to the first sub-temperature sensor according to a third preset corresponding relationship; When the first temperature value is greater than a first temperature threshold, increasing the opening of the air outlets in the target air outlet group or increasing the number of air outlets opened in the target air outlet group; When the first temperature value is less than a second temperature threshold, the opening of the air outlets in the target air outlet group is reduced or the number of opened air outlets in the target air outlet group is reduced, and the second temperature threshold is less than the first temperature threshold.

[0011] By adopting the above technical solution, the opening degree or the number of air outlets opened in the target air outlet group can be accurately controlled based on the real-time temperature value (i.e., the first temperature value) of the first sub-temperature sensor. This precise temperature regulation ensures rapid response and accurate control of the indoor temperature. When the indoor temperature is high (i.e., the first temperature value is greater than the first temperature threshold), the central air conditioning control platform accelerates the cooling speed by increasing the opening degree of the air outlet or increasing the number of air outlets opened. On the contrary, when the indoor temperature is low (i.e., the first temperature value is less than the second temperature threshold), the central air conditioning control platform reduces the opening degree of the air outlet or reduces the number of air outlets opened to reduce energy consumption. This method of adjusting the air outlet state according to actual needs effectively improves the energy efficiency of the central air conditioning system. By adjusting the air outlet state in real time, the central air conditioning control platform can ensure that the indoor temperature is always maintained within a comfortable range. This can not only improve the comfort of indoor personnel, but also help reduce discomfort or health problems caused by excessive temperature differences. By intelligently adjusting the air outlet state, the central air conditioning control platform can reduce equipment wear and failure rate caused by frequent opening and closing. This helps to reduce the maintenance cost of the equipment and extend the service life of the equipment. The control method automatically adjusts based on the preset correspondence and temperature threshold without manual intervention. This intelligent management method not only improves management efficiency but also reduces management costs. The control method is based on standardized coding and correspondence, so it can be easily expanded to other areas or equipment. When a new camera, air outlet or temperature sensor needs to be added, only the correspondence needs to be updated.

[0012] Optionally, when the first temperature value is greater than a first temperature threshold, increasing the opening of the air outlets in the target air outlet group or increasing the number of opened air outlets in the target air outlet group includes: When the first temperature value is greater than a first temperature threshold, determining to increase a first opening of the air outlet or to increase a first number of air outlets according to a difference between the first temperature value and the first temperature threshold, and obtaining a second temperature value of the first sub-temperature sensor in the target temperature sensor group at a second preset time interval, wherein the second preset time is less than the first preset time; When the second temperature value is greater than the first temperature threshold, all the air outlets in the target air outlet group are opened and the opening degrees of the air outlets are set to a first target opening degree.

[0013] By adopting the above technical solution, when the first temperature value exceeds the first temperature threshold, the central air conditioning control platform will determine the specific value of increasing the opening of the air outlet or increase the number of air outlets to be opened according to the size of the temperature difference. This adaptive adjustment strategy based on the temperature difference enables the system to respond to the increase in indoor temperature more accurately, thereby reaching the set temperature range more quickly. After adjusting the air outlet, the central air conditioning control platform will obtain the second temperature value of the first sub-temperature sensor in the target temperature sensor group again within a shorter second preset time. This ensures that the system can continuously monitor the change of indoor temperature and further adjust the state of the air outlet according to the new temperature value. If the second temperature value measured for the second time is still higher than the first temperature threshold, the central air conditioning control platform will take more radical adjustment measures, that is, open all the air outlets in the target air outlet group and set the opening to the first target opening. This rapid response can ensure that in extreme cases, the system can quickly reduce the indoor temperature and prevent the temperature from rising further. Although the central air conditioning control platform system will take more radical adjustment measures when necessary, overall, this adaptive adjustment strategy based on temperature difference can avoid unnecessary energy consumption. When the temperature is close to the set range, the central air conditioning control platform will only fine-tune the status of the air outlets instead of opening all the air outlets at once, thereby improving energy efficiency. Through precise temperature response and rapid adjustment measures, the central air conditioning control platform can ensure that the indoor temperature is always maintained within a comfortable range. This not only improves the comfort of indoor personnel, but also helps reduce discomfort or health problems caused by excessive temperature differences, thereby improving user experience. The entire adjustment process does not require human intervention and is completely automatically executed based on preset rules and algorithms. This intelligent management method not only improves management efficiency, but also reduces management costs.

[0014] Optionally, the control method further includes: When all first temperature values ​​in the target temperature sensor group are greater than a first temperature threshold, all air outlets in the first air outlet group are opened, and a second temperature value of a first sub-temperature sensor in the target temperature sensor group is obtained at a third preset time interval, and the third preset time is less than the first preset time; When all second temperature values ​​in the target temperature sensor group are greater than the first temperature threshold, determining whether all air outlets in a second air outlet group are open, the second air outlet group being an air outlet group corresponding to a second camera, the second camera being a camera with a first serial number adjacent to the first camera; When all the air outlets in the second air outlet group are opened, the air outlet temperature of the central air conditioner is lowered.

[0015] By adopting the above technical solution, when all the first temperature values ​​in the target temperature sensor group exceed the first temperature threshold, the central air conditioning control platform will immediately open all the air outlets in the first air outlet group to cool down with maximum efficiency. This strategy of rapid response and comprehensive cooling ensures that the indoor temperature can be controlled in a relatively short time and improves the adjustment speed of the system. After the air outlets are fully opened, the central air conditioning control platform will obtain the second temperature value of the first sub-temperature sensor in the target temperature sensor group again at a third preset time interval. This continuous monitoring strategy enables the central air conditioning control platform to continuously evaluate the cooling effect and perform further operations based on the new temperature value. If all the second temperature values ​​in the target temperature sensor group still exceed the first temperature threshold after continuous monitoring, the central air conditioning control platform will further determine the state of the second air outlet group corresponding to the second camera adjacent to the first camera. This multi-region collaborative adjustment strategy takes into account the mutual influence between different regions and helps to achieve more balanced and effective temperature control. When all the air outlets in the second air outlet group have been opened, the central air conditioning control platform will further reduce the outlet temperature of the central air conditioner. This strategy of intelligent judgment and automatic adjustment reflects the intelligence level of the system, and can make reasonable decisions based on actual conditions to achieve better cooling effects. Through multi-region collaborative adjustment and intelligent judgment, the central air-conditioning control platform can avoid unnecessary energy consumption and improve energy efficiency. At the same time, this adjustment method based on temperature distribution and regional collaboration also helps to achieve a more balanced and comfortable indoor temperature distribution. Through rapid response, comprehensive cooling, continuous monitoring and intelligent adjustment, the central air-conditioning control platform can ensure that the indoor temperature is always maintained within a comfortable and stable range. This not only improves the comfort of indoor occupants, but also helps to reduce the discomfort caused by temperature fluctuations, thereby improving the user experience.

[0016] Optionally, the control method further includes: Acquire a second image of a third camera at a preset position, perform face recognition on the second image, and match the recognition result with a preset database to determine a work destination of a target person in the second image, wherein the work destination includes a work floor and a work area, and the preset database is used to store a correspondence between the target person and the work destination; Determine whether the target person is the first person matched to the work destination in the current cycle; When the target person is the first person matched to the work destination in the current cycle, the first-level air outlet of the work destination is opened; When the target person is not the first person matched to the work destination in the current period, the current number of people at the work destination is increased by one, and it is determined whether the current number of people is greater than a second number threshold; When the current number of people is greater than a second number threshold, the second-level air outlet of the work destination is opened.

[0017] By adopting the above technical solution and using face recognition technology, the system can identify the identity of a specific person and determine his / her work destination based on the information in the preset database. This provides the system with the ability to provide personalized services for different people. The system can intelligently adjust the air outlets according to whether the target person is the first person to arrive at the work destination in the current cycle. If the target person is the first to arrive, the system can only open the first-level air outlets, and gradually open the second-level air outlets as the number of people increases, thereby achieving energy saving. The system can count the current number of people at each work destination in real time and intelligently adjust the air outlets according to the number threshold. This helps to ensure the comfort of each area while avoiding unnecessary energy waste. Through the combination of camera and face recognition technology, the system can respond to changes in personnel in real time and quickly adjust the air outlets according to actual conditions, improving the response speed and adaptability of the system.

[0018] Optionally, the control method further includes: Determine whether the current brightness of the target area is less than the brightness threshold; When the current brightness of the target area is less than the brightness threshold, obtaining a third image of the target area by a fourth camera, and determining whether the number of people in the third image exceeds a third number threshold, and the third number threshold is less than the first number threshold; When the number of people in the third image exceeds the third number threshold, determining the number of people in the third image with a preset posture and the total number of people, calculating the ratio of the number of people to the total number of people, and determining whether the ratio is less than the ratio threshold; When the ratio is less than the ratio threshold, the number of air outlets is reduced or the opening of the air outlets is lowered.

[0019] By adopting the above technical solution, when the system detects that the current brightness of the target area is less than the brightness threshold, it will automatically determine that this may be caused by turning off the lights or closing the curtains. In this situation, the system will further determine whether it is currently lunch time based on the number of people and the posture of the people. If there are fewer people in the area or most of the people are not working (such as lunch time), the system will reduce the number or opening of the air outlets to reduce energy consumption. By comprehensively judging information such as brightness, number of people and posture, the system can adjust the indoor environment in time after turning off the lights or closing the curtains to ensure that people can still remain comfortable when resting or in a low-activity state. This helps to improve employee work efficiency and satisfaction. By intelligently judging the context of turning off the lights or closing the curtains, the system can more accurately understand the needs and intentions of employees. In these special cases, the system will take more humane measures to ensure the comfort and happiness of employees. The entire control process does not require manual intervention. The system can automatically judge the context of turning off the lights or closing the curtains, and intelligently adjust the status of the air outlets according to the actual situation. This intelligent and automated management method reduces management costs and improves management efficiency. The system can continuously learn and optimize judgment logic and adjustment strategies. By collecting and analyzing historical data, the system can better understand the patterns and needs of people's activities after turning off the lights or closing the curtains, thereby providing more accurate and personalized environmental control services.

[0020] In a second aspect of the present application, a control system for a central air conditioner in an intelligent building is provided, comprising a judgment module, a coding module and an execution module, wherein: A judgment module, configured to obtain a first image from a first camera at a first preset time interval, and judge whether the number of people in the first image exceeds a first number threshold; a coding module configured to obtain a first code of the first camera when the number of people in the first image exceeds the first number threshold, and determine a first air outlet group corresponding to the first camera according to the first code based on a first preset corresponding relationship; An execution module is configured to determine the target temperature sensor group corresponding to the first camera according to the code based on a second preset correspondence relationship, obtain a first temperature value of a first sub-temperature sensor in the target temperature sensor group, and control the opening and closing of the corresponding air outlet in the first air outlet group according to the first temperature value, wherein the first sub-temperature sensor is any one temperature sensor in the target temperature sensor group.

[0021] In the third aspect of the present application, an electronic device is provided, including a processor, a memory, a user interface and a network interface, the memory is used to store instructions, the user interface and the network interface are both used to communicate with other devices, and the processor is used to execute the instructions stored in the memory so that the electronic device executes any one of the methods described above.

[0022] In a fourth aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores instructions, and when the instructions are executed, any of the methods described above is executed.

[0023] In summary, one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. By acquiring the first image of the first camera at a first preset interval and determining whether the number of people in the image exceeds the first threshold, this method ensures that the system responds to changes in the number of people indoors in real time. Once the number of people exceeds the threshold, the central air conditioning control platform can respond quickly and adjust the state of the corresponding air outlet; 2. According to the code of the first camera, the corresponding first air outlet group is determined through the first preset correspondence, which realizes the precise control of the specific area. The central air conditioning control platform can accurately adjust the air outlet status in the crowded area, so as to provide a more comfortable indoor environment; 3. Determine the target temperature sensor group based on the second preset corresponding relationship, and obtain the first temperature value of the first sub-temperature sensor. This step enables the central air conditioning control platform to sense the real-time temperature of a specific area, and intelligently adjust the state of the air outlet according to the temperature value to ensure that the indoor temperature is within a comfortable range; 4. The value of the temperature sensor is obtained only when the number of people exceeds the threshold, which avoids the huge energy consumption caused by the real-time opening of the temperature sensor. When the temperature deviates from the normal range, the ambient temperature of the target area is adjusted by adjusting the number of air outlets opened and the opening degree of the air outlets. This intelligent adjustment method based on the number of people and temperature helps to achieve energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a flow chart of a control method of a central air conditioner in an intelligent building disclosed in an embodiment of the present application; Figure 2 It is a plan view of a floor of a smart building disclosed in an embodiment of the present application; Figure 3 It is a module schematic diagram of a control system of a central air conditioner in an intelligent building disclosed in an embodiment of the present application; Figure 4 It is a structural schematic diagram of an electronic device disclosed in an embodiment of the present application.

[0025] Explanation of the reference numerals: 301, judgment module; 302, encoding module; 303, execution module; 401, processor; 402, communication bus; 403, user interface; 404, network interface; 405, memory. DETAILED DESCRIPTION

[0026] In order to enable technicians in this field to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0027] In the description of the embodiments of the present application, words such as "for example" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "for example" or "for example" is intended to present related concepts in a specific way.

[0028] In the description of the embodiments of the present application, the meaning of the term "multiple" refers to two or more. For example, multiple systems refer to two or more systems, and multiple screen terminals refer to two or more screen terminals. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0029] This embodiment discloses a control method for a central air conditioner in an intelligent building, which is applied to a central air conditioner control platform. Figure 1 is a flow chart of a control method for a central air conditioner in an intelligent building disclosed in an embodiment of the present application, such as Figure 1 As shown, the control method includes the following steps: S110: Acquire a first image from a first camera at a first preset time interval, and determine whether the number of people in the first image exceeds a first threshold number of people.

[0030] The first preset time is a time interval set according to actual needs and the processing capacity of the central air conditioning control platform. This time interval can be fixed, such as 5 minutes, 10 minutes, etc., or it can be dynamically adjusted, and it can be dynamically set according to factors such as changes in the flow of people in the building and seasonal changes. For example, the time interval can be increased when the flow of people changes relatively small. A plurality of cameras are arranged in the building, and the first camera is any camera in the building. The central air conditioning control platform sends instructions to the first camera at regular intervals through the network connection established with the first camera, requesting it to capture and send the current image data. After receiving the instruction, the first camera will immediately take a photo of the current scene and send the photo to the central air conditioning control platform in the form of a digital image. After receiving the image data, the central air conditioning control platform will save it as the first image of the first camera. The first number threshold is a value set according to the actual use and needs of the building. It represents the critical value at which the central air conditioning control platform believes that there are too many people in a certain area and needs to adjust the air conditioning operation state. This threshold can be personalized according to different areas and different time periods to better meet actual needs. After receiving the first image, the central air conditioning control platform will use image processing and analysis technology to process and analyze the image. By applying some computer vision algorithms, the central air conditioning control platform can automatically identify the human body outline in the image and count the number of people in the image. This process can use machine learning, deep learning and other technologies to improve the accuracy and efficiency of recognition. After the central air conditioning control platform counts the number of people in the first image, it will compare it with the preset first number threshold. If the number of people exceeds the first number threshold, the central air conditioning control platform will think that there are too many people in the area and may need to take corresponding measures to adjust the operating status of the air conditioner; if the number of people does not exceed the first number threshold, the central air conditioning control platform will continue to maintain the current air conditioning operating status and continue to obtain the next image for monitoring at a fixed time.

[0031] In some embodiments, the control method comprises: Divide each floor of the building into an area, and assign a unique first code to each camera, wherein the first code includes a floor number, an area number, and a first serial number; Assigning a unique second code to each air outlet, wherein the second code includes a floor number, an area number, a first group number, and a second serial number; Assigning a unique third code to each temperature sensor, wherein the third code includes a floor number, an area number, a second group number and a third serial number; A first preset corresponding relationship between the first code and the second code is established according to the position relationship, a second preset corresponding relationship between the first code and the third code is established, and a third preset corresponding relationship between the second code and the third code is established.

[0032] For more effective monitoring and temperature control, each floor is divided into zones. This division can be based on the function, structure or actual needs of the floor. For example, a floor may include multiple different areas such as office area, rest area, meeting room, etc. Use floor plans or CAD drawings to determine the boundaries of each area. Assign a unique zone number to each area for easy subsequent management and identification.

[0033] In order to ensure that each camera can be accurately identified and managed, a unique first code needs to be assigned to each camera. The first code contains the location information of the camera, such as the floor number and area number, and a first serial number, which is used to distinguish different cameras in the same area. According to the location and area information of the first camera, a first code including the floor number, area number and first serial number is generated. For example, the first code can be S (camera type number) 10 (floor number) A (area number) 01 (first serial number). Similarly, in order to accurately control the air volume and temperature of each air outlet, a unique second code needs to be assigned to each air outlet. The second code not only contains the location information of the air outlet (floor number, area number), but also includes the first group number to which the air outlet belongs (which may refer to a group of air outlets with similar locations or functions) and the second serial number (used to distinguish different air outlets in the same group). According to the location and group information of the air outlet, a second code including the floor number, area number, first group number and second serial number is generated. For example, the second code can be C (air outlet type number) 05 (floor number) B (area number) 01 (first group number) 04 (second serial number). The temperature sensor is used to monitor the temperature of each area in the building in real time. In order to accurately obtain and identify temperature data, a unique third code needs to be assigned to each temperature sensor. The third code also contains the location information of the sensor (floor number, area number) and the second group number to which it belongs (which may refer to a group of temperature sensors with similar distances or used for the same temperature control logic) and the third serial number (used to distinguish different temperature sensors in the same group). According to the location and group information of the temperature sensor, a third code including the floor number, area number, second group number and third serial number is generated. For example, the third code can be W (temperature sensor type number) 08 (floor number) D (area number) 06 (second group number) 05 (third serial number).

[0034] In order to effectively control the environment in the building and ensure the accuracy of monitoring, it is necessary to establish preset correspondences between cameras, air outlets and temperature sensors. These correspondences are based on their positional relationships and possible control logic. First preset correspondence: Establish a correspondence between the first code and the second code based on the positional relationship between the camera and the air outlet. For example, the range monitored by a camera includes multiple air outlets, and the multiple air outlets within the monitoring range of a camera are divided into a group. Second preset correspondence: Establish a correspondence between the first code and the third code based on the positional relationship between the camera and the temperature sensor. For example, the range monitored by a camera includes multiple temperature sensors, and the multiple temperature sensors within the monitoring range of a camera are divided into a group. Third preset correspondence: Establish a correspondence between the second code and the third code based on the positional relationship between the air outlet and the temperature sensor. For example, the first preset correspondence may be S10A01-C10A01 (C10A0101-C10A0105), that is, the camera No. 01 in the A area on the 10th floor establishes a first preset correspondence with the air outlet group of the A area on the 10th floor, and the air outlet group of the A area on the 10th floor includes the air outlets C10A0101-C10A0105. The second preset correspondence may be S10A01-W10A01 (W10A0101-W10A0102), that is, the camera No. 01 in the A area on the 10th floor establishes a second preset correspondence with the temperature sensor group of the A area on the 10th floor, and the temperature sensor group of the A area on the 10th floor includes the temperature sensors W10A0101-W10A0102. The third preset corresponding relationship may be W10A0101-(C10A0101-C10A0102), that is, temperature sensor No. 01 of group 01 in area A on floor 10 establishes a third preset corresponding relationship with air outlets No. 01-02 of group 01 in area A on floor 10.

[0035] By dividing each floor of the building into zones and assigning cameras, air outlets, and temperature sensors to each zone, the central air conditioning control platform can more accurately monitor and control the environmental conditions of each zone. The unique coding of cameras, air outlets, and temperature sensors ensures that the central air conditioning control platform can accurately identify each device, thus avoiding confusion or misoperation. Through precise environmental control, the central air conditioning control platform can reduce unnecessary energy consumption while ensuring people's comfort. Unique coding and preset correspondence make the central air conditioning control platform easier to maintain and expand. When you need to add new cameras, air outlets, or temperature sensors, you only need to assign new codes to them and establish corresponding preset correspondences. When a device fails, it can also be quickly located and repaired or replaced based on the code.

[0036] S120: When the number of people in the first image exceeds the first number threshold, obtain a first code of the first camera, and determine a first air outlet group corresponding to the first camera according to the first code based on a first preset corresponding relationship.

[0037] When the number of people in the first image captured by the first camera exceeds the preset first number threshold, the central air conditioning control platform triggers a response mechanism. In order to determine the air outlet group and temperature sensor group associated with the camera, the central air conditioning control platform needs to obtain the first code of the camera. The central air conditioning control platform finds the first code corresponding to the first camera by querying the camera management database or system configuration. The central air conditioning control platform determines the first air outlet group associated with the first camera based on the first preset correspondence established previously.

[0038] S130. Determine the target temperature sensor group corresponding to the first camera according to the code based on a second preset correspondence, obtain a first temperature value of a first sub-temperature sensor in the target temperature sensor group, and control the opening and closing of the corresponding air outlet in the first air outlet group according to the first temperature value, where the first sub-temperature sensor is any one temperature sensor in the target temperature sensor group.

[0039] The target temperature sensor group associated with the first camera is determined according to the second preset corresponding relationship established previously. After the target temperature sensor group is determined, the central air conditioning control platform will control to open all temperature sensors of the target temperature sensor group and obtain the temperature value of each temperature sensor in the target temperature sensor group. Specifically, the central air conditioning control platform establishes a connection with each temperature sensor in the target temperature sensor group through a communication interface (such as a wired or wireless method), sends a temperature reading instruction to the first sub-temperature sensor, and waits for the temperature value returned by it, receives and parses the returned temperature data, and obtains the first temperature value. After obtaining the first temperature value, the target temperature sensor group will judge the environmental state of the current area according to this temperature value, and control the opening and closing of the corresponding air outlet group accordingly. For example, if the temperature value is too high, the central air conditioning control platform may increase the number of air outlets opened or increase the opening degree of the air outlet; if the temperature value is appropriate, the central air conditioning control platform may maintain the current state or make fine adjustments; if the temperature value is too low, the central air conditioning control platform may reduce the number of air outlets opened or reduce the air volume. The central air conditioning control platform calculates the required air outlet control parameters (such as the number of openings, opening degree, etc.) according to the preset temperature control strategy (such as PID control algorithm, fuzzy control algorithm, etc.) and the first temperature value. Send control instructions to the corresponding air outlet group through the control interface to adjust its opening and closing status and air volume. Monitor the actual status changes of the air outlet and adjust or optimize as needed.

[0040] Figure 2is a schematic diagram of a floor of a smart building disclosed in an embodiment of the present application, such as Figure 2 As shown, the floor is divided into four areas, A, B, C, and D. Each area includes at least one camera, at least one temperature sensor, and at least one group of air outlets. Taking area B as an example, camera 201 can cover the entire area B. Area B includes air outlets 202, 203, 204, 205, and 206, and also includes temperature sensors 207 and 208. Air outlets 202, 203, 204, 205, and 206 form a group of air outlets, and a first preset corresponding relationship is established with camera 201. Temperature sensors 207 and 208 form a group of temperature sensors, and a second preset corresponding relationship is established with camera 201. Temperature sensor 207 establishes a third preset corresponding relationship with air outlets 202 and 203. Temperature sensor 208 establishes a third preset corresponding relationship with air outlets 204, 205, and 206. Combined with Figure 2 The embodiments of the present application are described.

[0041] In some embodiments, controlling the opening and closing of corresponding air outlets in the first air outlet group according to the first temperature value includes: Determine the target air outlet group corresponding to the first sub-temperature sensor according to a third preset corresponding relationship; When the first temperature value is greater than a first temperature threshold, increasing the opening of the air outlets in the target air outlet group or increasing the number of air outlets opened in the target air outlet group; When the first temperature value is less than a second temperature threshold, the opening of the air outlets in the target air outlet group is reduced or the number of opened air outlets in the target air outlet group is reduced, and the second temperature threshold is less than the first temperature threshold.

[0042] The target air outlet group is a part or all of the first air outlet group, such as Figure 2 As shown, region B includes two temperature sensors 207 and 208, each of which corresponds to a part of the first air outlet group. When region B includes only one temperature sensor, the temperature sensor will correspond to the entire first air outlet group. In the embodiment of the present application, when the first sub-temperature sensor is 207, the target air outlet group corresponding to 207 is the combination of air outlet 202 and air outlet 203. When the first sub-temperature sensor is 208, the target air outlet group corresponding to 208 is the combination of air outlet 204, air outlet 205 and air outlet 206.

[0043] When the first temperature value is greater than the first temperature threshold (for example, 28°C), the central air conditioning control platform will determine that the ambient temperature of the current area is high and the amount of cold air needs to be increased to lower the temperature. For example, assuming that the current air outlet 202 is in an open state, the air outlet 203 is in a closed state, and the opening of the air outlet 202 is 50%, more cold air can flow into the area and lower the temperature by increasing the opening of the air outlet in the target air outlet group, that is, the opening of the air outlet 202 can be increased. If necessary, the central air conditioning control platform can also increase the number of air outlets opened in the target air outlet group to further improve the cooling effect, that is, the air outlet 203 can be opened. If the first temperature value exceeds the first temperature threshold by too much (for example, the first temperature value exceeds the first temperature threshold by 2°C), the air outlets in the target air outlet group corresponding to other temperature sensors in the same area can also be opened. For example, one or more of the air outlets 204, 205 or 206 can be opened in the embodiment of the present application. When the first temperature value is less than the second temperature threshold (for example, 22°C), the central air conditioning control platform will determine that the ambient temperature in the current area is low and the amount of cold air needs to be reduced to maintain the temperature. The opening of the air outlets in the target air outlet group can be reduced to reduce the amount of cold air flowing into the area and keep the temperature stable. If necessary, the central air conditioning control platform can also reduce the number of open air outlets in the target air outlet group to further reduce the cooling effect. The second temperature threshold is less than the first temperature threshold to ensure that the central air conditioning control platform can respond appropriately under different temperature conditions.

[0044] By correspondingly associating temperature sensors with air outlets, the central air conditioning control platform can accurately adjust the corresponding air outlets for temperature change areas. When the first temperature value exceeds the set first temperature threshold, the central air conditioning control platform can quickly increase the ventilation volume of the target air outlet group to effectively reduce the temperature of the local area. Conversely, when the temperature drops below the second temperature threshold, the central air conditioning control platform can reduce the ventilation volume, prevent energy waste, and maintain the stability of the indoor temperature. Accurate temperature control can reduce unnecessary energy consumption, especially during non-peak working hours or in areas with low population density. At the same time, by adjusting the temperature in a timely manner, the comfort of the indoor environment can be maintained. Through intelligent temperature control and adjustment, the central air conditioning control platform can make corresponding adjustments before the user perceives the temperature change, thereby providing a more comfortable and stable environment.

[0045] In some embodiments, when the first temperature value is greater than a first temperature threshold, increasing the opening of the air outlets in the target air outlet group or increasing the number of air outlets opened in the target air outlet group includes: When the first temperature value is greater than a first temperature threshold, determining to increase a first opening of the air outlet or to increase a first number of air outlets according to a difference between the first temperature value and the first temperature threshold, and obtaining a second temperature value of the first sub-temperature sensor in the target temperature sensor group at a second preset time interval, wherein the second preset time is less than the first preset time; When the second temperature value is greater than the first temperature threshold, all the air outlets in the target air outlet group are opened and the opening degrees of the air outlets are set to a first target opening degree.

[0046] When the difference between the first temperature value and the first temperature threshold is greater than zero and less than one, priority is given to increasing the opening of the opened air outlets. For example, the first temperature value is 28.5°C, the first temperature threshold is 28°C, and the difference is 0.5. If only one air outlet is opened in the current target air outlet group, the opening of the air outlet can be increased by 40%. If two air outlets are opened in the current target air outlet group, the opening of the two air outlets can be increased by 20% respectively. Of course, this is only exemplary, and the specific value of the opening adjustment can be further calculated according to the contribution rate of the percentage of the increase in the opening to the temperature reduction. When the difference between the first temperature value and the first temperature threshold is greater than or equal to one, priority is given to increasing the number of opened air outlets, so that the temperature of the target area can be reduced as soon as possible. After a period of time, the current temperature value of the first sub-temperature sensor (that is, the second temperature value) is obtained again, and it is determined again whether the current temperature value is greater than the first temperature threshold. If the current temperature value is still greater than the first temperature threshold, it indicates that the cooling effect is not obvious, and all the air outlets in the target air outlet group can be opened, and the opening of each air outlet can be set to the maximum. If the current temperature value is less than or equal to the first temperature threshold, it indicates that the cooling effect is as expected, and the current working state of the target air outlet group can be maintained.

[0047] By determining the adjustment range based on the temperature difference, the central air conditioning control platform can achieve more accurate temperature control. This helps to avoid the discomfort caused by excessive temperature fluctuations and also helps to save energy. The central air conditioning control platform can ensure a quick response to the ambient temperature by monitoring the temperature value again at a second preset interval and taking more aggressive measures when necessary. This helps to improve the comfort of the indoor environment. The gradual adjustment strategy helps to avoid unnecessary energy waste. When the temperature is only slightly above the threshold, the central air conditioning control platform only needs to fine-tune the outlet status without immediately taking measures to increase the maximum ventilation volume. Through precise control and quick response, the central air conditioning control platform can provide users with a more stable and comfortable indoor environment, thereby improving user satisfaction and comfort.

[0048] In some embodiments, reducing the opening of the air outlets in the target air outlet group or reducing the number of opened air outlets in the target air outlet group includes: When the first temperature value is less than a second temperature threshold, determining to reduce a second opening degree of the air outlet or to reduce a second number of the air outlets according to a difference between the first temperature value and the second temperature threshold, and obtaining a second temperature value of the first sub-temperature sensor in the target temperature sensor group at a second preset time interval, the second preset time being less than the first preset time; When the second temperature value is less than the second temperature threshold, all unmarked air outlets in the target air outlet group are closed, and the openings of the marked air outlets are set to a second target opening.

[0049] When the difference between the first temperature value and the second temperature threshold is greater than zero and less than one, priority is given to reducing the opening of the opened air outlets. For example, the first temperature value is 21.5°C, the first temperature threshold is 22°C, and the difference is 0.5. If only one air outlet is opened in the current target air outlet group, the opening of the air outlet can be reduced by 40%. If two air outlets are opened in the current target air outlet group, the opening of the two air outlets can be reduced by 20% respectively. Of course, this is only exemplary, and the specific value of the opening adjustment can be further calculated based on the contribution rate of the percentage of opening reduction to the temperature reduction. When the difference between the first temperature value and the first temperature threshold is greater than or equal to one, priority is given to reducing the number of opened air outlets, so that the temperature of the target area can be adjusted to the preset range as soon as possible. After a period of time, the current temperature value (that is, the second temperature value) of the first sub-temperature sensor is obtained again, and it is determined again whether the current temperature value is less than the first temperature threshold. If the current temperature value is still less than the first temperature threshold, it indicates that the cooling effect is much greater than the demand, and all unmarked air outlets in the target air outlet group can be closed, and the opening of the marked air outlets can be set to the minimum opening. Some air outlets need to be retained to maintain the normal cooling effect in the building, and these air outlets are marked. When the minimum cooling effect is maintained, only the marked air outlets are opened. If the current temperature value is greater than or equal to the first temperature threshold, it indicates that the cooling effect has reached the expected state, and the current working state of the target air outlet group can be maintained.

[0050] When the indoor temperature is lower than the required level, the central air conditioning control platform can significantly reduce unnecessary energy consumption by reducing the number of air outlets or lowering the opening of the air outlets. This not only helps to reduce operating costs, but also helps to reduce the burden on the environment. By dynamically adjusting the opening or number of air outlets based on the temperature difference, the central air conditioning control platform can achieve more accurate temperature control. This helps to avoid excessive temperature fluctuations and maintain the stability of the indoor environment. By gradually adjusting the state of the air outlets, the central air conditioning control platform can gradually reduce the indoor temperature without affecting the user's comfort. This smooth temperature change avoids a sharp drop in temperature, thereby providing a better experience. The central air conditioning control platform obtains the temperature value again at an interval of a second preset time and makes corresponding adjustments based on the temperature change. This fast response mechanism helps to respond to changes in indoor temperature in a timely manner and ensure that the indoor environment always remains within a comfortable range. The implementation of the entire strategy relies on an automated control system, which makes the temperature management of the indoor environment more intelligent. The central air conditioning control platform can automatically make decisions based on real-time data without manual intervention, which improves the efficiency and accuracy of management. This strategy is not only applicable to the temperature control of a single room or area, but can also be extended to the combined management of an entire building or multiple rooms. Through a unified control system, coordinated control of multiple areas can be achieved, further improving energy efficiency and comfort.

[0051] In some embodiments, the control method further comprises: When all first temperature values ​​in the target temperature sensor group are greater than a first temperature threshold, all air outlets in the first air outlet group are opened, and a second temperature value of a first sub-temperature sensor in the target temperature sensor group is obtained at a third preset time interval, and the third preset time is less than the first preset time; When all second temperature values ​​in the target temperature sensor group are greater than the first temperature threshold, determining whether all air outlets in a second air outlet group are open, the second air outlet group being an air outlet group corresponding to a second camera, the second camera being a camera with a first serial number adjacent to the first camera; When all the air outlets in the second air outlet group are opened, the air outlet temperature of the central air conditioner is lowered.

[0052] Continue to see Figure 2, the target temperature sensor group is temperature sensor 207 and temperature sensor 208. When the temperature values ​​of temperature sensor 207 and temperature sensor 208 are both greater than the first temperature threshold, all the air outlets in the first air outlet group are opened, that is, air outlets 202, 203, 204, 205 and 206 are opened, and the current temperature values ​​(i.e., second temperature values) of temperature sensor 207 and temperature sensor 208 are obtained again after a third preset time interval. When all second temperature values ​​are greater than the first temperature threshold, it indicates that the current cooling effect does not meet expectations. At this time, it is necessary to determine whether all the air outlets in the second air outlet group are opened. The second air outlet group is the air outlet group corresponding to the second camera. The second camera is Refers to the camera with the first serial number adjacent to the first camera. In the embodiment of the present application, the second camera may be camera 211 or camera 221. When the second camera is camera 211, the second air outlet group is air outlets 212, 213, 214, 215 and 216. When the second camera is camera 221, the second air outlet group is air outlets 222, 223, 224, 225 and 226. If the air outlets 212, 213, 214, 215, 216 and 222, 223, 224, 225, 226 are all in the open state, it indicates that the cooling effect of the current floor may be difficult to achieve the expected effect, and the air outlet temperature of the current floor can be reduced. If the air outlets of other floors are also in the open state at this time, or the ratio of the air outlets in the open state of the entire building to the total number of air outlets exceeds a certain preset value (for example, 90%), the air outlet temperature of the entire building can be reduced.

[0053] When all the first temperature values ​​in the target temperature sensor group exceed the first temperature threshold, the central air conditioning control platform quickly opens all the air outlets in the first air outlet group to quickly reduce the temperature in the target area. When it is found that the temperature of the target area continues to exceed the threshold, the central air conditioning control platform will further determine whether the second air outlet group corresponding to the second camera adjacent to the first camera has been fully opened. This linkage control strategy takes into account the mutual influence between adjacent areas and helps to achieve temperature balance in a larger range. If all the air outlets in the second air outlet group have been opened, but the temperature still exceeds the threshold, the central air conditioning control platform will choose to lower the outlet temperature of the central air conditioner. This intelligent adjustment method can ensure that while meeting the cooling requirements, unnecessary energy waste is avoided. Through refined control and intelligent adjustment, the central air conditioning control platform can provide users with a more comfortable environment and enhance the overall user experience.

[0054] Optionally, the average value of the temperature sensor 207 and the temperature sensor 208 can be used as the first temperature value, and all the air outlets in the area B can be regulated as a whole by using the average value. The regulation method can be as described above and will not be repeated here. In order to avoid abnormal regulation caused by a temperature sensor failure, the difference between the temperature value of the temperature sensor 207 and the temperature value of the temperature sensor 208 can be calculated. If the difference is greater than a preset threshold value (for example, 3°C), it indicates that there may be an abnormality in the temperature sensor 207 and the temperature sensor 208. At this time, the temperature value of the temperature sensor 207 and the temperature value of the temperature sensor 208 can be measured again, and the temperature sensor 207 and the temperature sensor 208 can be verified in combination with the temperature values ​​of other sensors. For example, when the temperature difference between the temperature sensor 218 and the temperature sensor 227 and the temperature sensor 207 is less than the preset threshold value, and the temperature difference between the temperature sensor 228 and the temperature sensor 208 is greater than the preset threshold value, it indicates that the temperature sensor 208 may be faulty.

[0055] In some embodiments, the control method further comprises: When all the first temperature values ​​in the target temperature sensor group are less than the second temperature threshold, keeping the first preset air outlet in the first air outlet group in an open state, closing the unmarked air outlets in the first air outlet group, and obtaining the third temperature value of the first sub-temperature sensor in the target temperature sensor group at a third preset time interval, wherein the third preset time is less than the first preset time; When all third temperature values ​​in the target temperature sensor group are less than the second temperature threshold, determining whether all unmarked air outlets in the second air outlet group are in a closed state, the second air outlet group being an air outlet group corresponding to a second camera, the second camera being a camera with a first serial number adjacent to the first camera; When all the unmarked air outlets in the second air outlet group are in closed state, the air outlet temperature of the central air conditioner is increased.

[0056] Continue to see Figure 2, the target temperature sensor group is temperature sensor 207 and temperature sensor 208. When the temperature values ​​of temperature sensor 207 and temperature sensor 208 are both less than the second temperature threshold, assuming that the marked air outlets are 203 and 206, close the unmarked air outlets in the first air outlet group, that is, close the air outlets 202, 204, and 205. Obtain the current temperature values ​​(i.e., the second temperature values) of temperature sensor 207 and temperature sensor 208 again after a third preset time interval. When all second temperature values ​​are less than the second temperature threshold, it indicates that the current cooling effect has far exceeded expectations. At this time, it is necessary to determine whether the unmarked air outlets in the second air outlet group are all in a closed state. The second air outlet group is the air outlet group corresponding to the second camera. The second camera refers to the air outlet group corresponding to the first serial number and the The camera adjacent to the first camera, in the embodiment of the present application, the second camera may be camera 211 or camera 221. When the second camera is camera 211, the second air outlet group is air outlets 212, 213, 214, 215 and 216. When the second camera is camera 221, the second air outlet group is air outlets 222, 223, 224, 225 and 226. Assuming that the marked air outlets are 212, 215, 222, 225, if at this time the air outlets 213, 214, 216 and 223, 224, 226 are all in a closed state, and the air outlets 212, 215, 222, 225 are at the minimum opening, it indicates that the cooling effect of the current floor may be far beyond the expected effect, and the air outlet temperature of the current floor can be increased. If at this time the unmarked air outlets on other floors are also in a closed state, the air outlet temperature of the entire building can be increased.

[0057] When all the first temperature values ​​in the target area are less than the second temperature threshold, the central air conditioning control platform closes the unmarked air outlets, reducing unnecessary energy consumption while maintaining the temperature stability of the target area. Obtaining the temperature value again at the third preset time interval means that the central air conditioning control platform will not continue to perform high-frequency temperature detection, thereby ensuring the timeliness of temperature adjustment while taking energy saving into account. Not only the temperature of the current target area is considered, but also the status of the air outlets in the adjacent areas. When it is determined that all the unmarked air outlets in the adjacent areas are in the closed state, the air outlet temperature of the central air conditioner is further increased. This linkage control strategy can avoid the mutual influence caused by temperature adjustment between different areas and improve the coordination and stability of the entire system. Since the central air conditioning control platform can dynamically adjust the air outlet status based on the real-time data of the temperature sensor, it can ensure that the temperature in the target area monitored by the camera is always maintained within a comfortable and safe range. The entire control process does not require manual intervention and is automatically executed based on preset thresholds and logical rules, realizing intelligent and automated temperature management, reducing labor costs, and improving the response speed and reliability of the system.

[0058] In some embodiments, the control method further comprises: Acquire a second image of a third camera at a preset position, perform face recognition on the second image, and match the recognition result with a preset database to determine a work destination of a target person in the second image, wherein the work destination includes a work floor and a work area, and the preset database is used to store a correspondence between the target person and the work destination; Determine whether the target person is the first person matched to the work destination in the current cycle; When the target person is the first person matched to the work destination in the current cycle, the first-level air outlet of the work destination is opened; When the target person is not the first person matched to the work destination in the current period, the current number of people at the work destination is increased by one, and it is determined whether the current number of people is greater than a second number threshold; When the current number of people is greater than a second number threshold, the second-level air outlet of the work destination is opened.

[0059] The third camera at a preset location (such as the lobby, elevator entrance, etc.) captures the second image of the person entering the area. The face recognition module analyzes the second image, identifies the face, and extracts the features of each face. These features are compared with the data in the preset database. The preset database stores the facial features of each target person and their corresponding work destination information. The system compares the facial features extracted from the image with the data in the database to find the matching target person and his / her work destination, which usually includes specific floor and area information. When the target person is identified and his / her work destination is determined, the system checks whether other people have been matched to the same work destination in the current cycle (such as one day). If the target person is the first person to match the work destination, the system will open the first-level air outlet of the target work destination. If the target person is not the first to arrive, the system will count the number of people and open the second-level air outlet when the number exceeds the threshold. The first-level air outlet can be a marked air outlet, and the second-level air outlet can be an unmarked air outlet at the target work location.

[0060] For example, at 8 o'clock in the morning, the third camera at the lobby of the office building captures the second image, identifies person M from the image, and determines that the work destination corresponding to M is area B on the 15th floor by matching with the preset database. At this time, it is determined whether there are employees in area B on the 15th floor who have entered the office building today. If not, it means that M is the first employee to come to work in area B on the 15th floor today. At this time, the first-level air outlet of area B on the 15th floor is opened in advance so that M can experience a comfortable temperature when entering area B on the 15th floor. If there is, it means that M is not the first employee to come to work in area B on the 15th floor today. The current number of people in area B on the 15th floor is increased by one, and it is determined whether the current number of people is greater than the second number threshold. If the current number of people is greater than the second number threshold, the second-level air outlet of area B on the 15th floor is opened. Opening the first-level air outlet of the target work destination is usually to ensure the basic comfort of the area and avoid energy waste, because there is only one person in the area at this time. The system will track the changes in the number of people in the area in real time and determine whether the current number of people exceeds the preset second number threshold. The second number threshold is set based on the area, design capacity and comfort requirements of the area. If the current number of people exceeds the threshold, the system will open the second-level air outlet. This is usually to further improve the comfort level of the area, ensure air circulation, and reduce the decrease in comfort caused by too many people. The entire control process is carried out in real time, and the system will dynamically adjust the status of the air outlet according to the changes in the number of people. This ensures that the central air conditioning system can provide the best comfort according to actual needs while achieving efficient use of energy.

[0061] The system can automatically recognize faces and match them with the preset database to determine the work destination of the target person, and then control the status of the air outlet. The whole process does not require human intervention, realizing intelligent and automated environmental control. The system accurately controls the air outlet according to the appearance of the target person, avoiding unnecessary energy consumption. When only a few people arrive, only opening the first-level air outlet can meet the demand and achieve energy saving. As the number of people increases, the second-level air outlet is opened in time to ensure environmental comfort while maintaining efficient operation. The system can automatically adjust the environment according to the work destination of the target person, ensuring that the target person can enjoy a comfortable environment when entering the work area. This helps to improve user satisfaction and comfort. The system can detect and match the work destination information of the target person in real time, and dynamically adjust the air outlet status according to the current number of people. This real-time and flexibility enable the system to adapt to various complex usage scenarios and meet the needs of different users. It can be integrated with other intelligent systems (such as access control systems, attendance systems, etc.) to achieve information sharing and collaborative work. In addition, with the continuous development of technology, the system can further expand its functions, such as adding automatic adjustment of environmental parameters such as carbon dioxide and humidity.

[0062] In some embodiments, the control method further comprises: Determine the hot zone and cold zone in each cycle and the generation time of the hot zone and cold zone according to the change rate of the personnel, wherein the hot zone refers to the area where the number of personnel increase exceeds the third threshold value within a preset time, and the cold zone refers to the area where the number of personnel decrease exceeds the fourth threshold value within a preset time; When the generation time of the same target hot zone or the same target cold zone in multiple cycles is close, determining the first preset time of the target hot zone or the target cold zone according to the generation time of the multiple cycles, wherein the close generation time means that the difference between the two generation times is less than the first time threshold; When the second preset moment is reached, the corresponding air outlet is opened according to the temperature of the target hot zone, and / or the corresponding air outlet is closed according to the temperature of the target cold zone, the second preset moment is the moment before the first preset moment, and the difference between the second preset moment and the first preset moment is less than a second time threshold.

[0063] Monitor the change in the number of personnel in each work area, and count the increase or decrease in the number of personnel according to a preset time period (such as 10 minutes). If the number of personnel in a certain area increases by more than the third threshold (this threshold can be set according to actual conditions, such as an increase of 10 people or 20%) within a preset time, then this area is defined as a "hot zone". On the contrary, if the number of personnel in a certain area decreases by more than the fourth threshold (such as a decrease of 5 people or 10%), then this area is defined as a "cold zone". Record the time when each hot zone and cold zone is generated, and pay attention to areas where hot zones or cold zones frequently appear. In particular, when the same area is identified as a hot zone or cold zone in multiple cycles, and the generation time of these cycles is similar (that is, the difference between the two generation times is less than the first time threshold, such as less than 5 minutes), then this area is regarded as a "target hot zone" or "target cold zone". This step can help the system identify areas with regular changes for prediction and early intervention. For example, if area A on the first underground floor is defined as a hot zone at 18:05 on March 1, 18:07 on March 2, 18:02 on March 3, and 18:09 on March 4, then area A on the first underground floor can be defined as a target hot zone, and the first preset time can be 18:02 (the earliest time among the above times), and the second preset time can be 18:00, that is, the air outlet of area A on the first underground floor can be opened in advance at 18:00 on March 5. Of course, if the appearance of the hot zone has obvious periodicity, that is, it appears on weekdays but not on holidays, then if March 5 is a holiday, the air outlet of area A on the first underground floor will not be opened in advance.

[0064] When the target hot zone or target cold zone is determined, the system will predict future needs based on the temperature change patterns of these areas and intervene in advance. Specifically, when the second preset moment is reached (this moment is a moment before the first preset moment of the target hot zone or cold zone, and the difference between the two is less than the second time threshold, such as 2 minutes in advance), the system will open the corresponding air outlet in advance according to the temperature of the target hot zone to increase air circulation and cooling effect in the area. Similarly, for the target cold zone, the system will also close the corresponding air outlet in advance according to the temperature conditions to reduce energy consumption and maintain the temperature of the area.

[0065] By predicting the time when hot and cold zones are generated, the system can intervene in advance to ensure that the environmental state is adjusted before the number of people changes, improving response speed and efficiency. By accurately controlling the opening and closing of the air outlets and adjusting them, the system can avoid unnecessary energy consumption, especially in cold zones, where closing the air outlets can significantly reduce energy consumption. The system can provide a comfortable environment based on the temperature change pattern of the area, ensuring that people work at a suitable temperature in both hot and cold zones. The entire process achieves intelligent management without manual intervention, reducing management costs and improving management efficiency.

[0066] In some embodiments, the control method further comprises: Determine whether the current brightness of the target area is less than the brightness threshold; When the current brightness of the target area is less than the brightness threshold, obtaining a third image of the target area by a fourth camera, and determining whether the number of people in the third image exceeds a third number threshold, and the third number threshold is less than the first number threshold; When the number of people in the third image exceeds the third number threshold, determining the number of people in the third image with a preset posture and the total number of people, calculating the ratio of the number of people to the total number of people, and determining whether the ratio is less than the ratio threshold; When the ratio is less than the ratio threshold, the number of air outlets is reduced or the opening of the air outlets is lowered.

[0067] Monitor the current brightness of the target area, which is usually achieved through a brightness sensor or a built-in brightness detection function of the camera. When the system detects that the current brightness of the target area is less than a preset brightness threshold, subsequent operations will be triggered. Alternatively, when it is detected that the lights in the target area are turned off or the curtains in the target area are drawn, subsequent operations will also be triggered, because turning off the lights in the target area or drawing the curtains in the target area often means a meeting or a lunch break. Whether to turn off the lights in the target area or draw the curtains in the target area can be determined by a sensor set at a lamp switch or a curtain crossbar. When the brightness is lower than the brightness threshold, the system activates the fourth camera (or other specified camera) to capture an image of the target area. That is, the third image, the system will perform a number recognition on the third image. This is usually achieved through image analysis technology (such as target detection, background segmentation, etc.) to determine whether the number of people in the image exceeds the preset third number threshold. This threshold is usually smaller than the first number threshold to take into account the situation where people may be more concentrated or less active when the brightness is low. In some embodiments, the third number threshold can be set to zero. If the number of people in the third image exceeds the third number threshold, the system will further analyze the posture of the person in the image. This can be achieved through a posture recognition algorithm, which can identify the current posture of the person and determine whether the current posture is a preset posture. The preset posture can be a normal working posture, that is, the head and the upper body are approximately on the same plane, and the upper body and the thighs are approximately vertical. Any abnormal working posture does not belong to the preset posture, such as lying, lying, and standing. Calculate the ratio of the number of people in the preset posture to the total number of people. This ratio reflects the proportion of people in the current area who are in a working state. Determine whether the above calculated ratio is less than the preset ratio threshold. The ratio threshold is usually set according to the actual application scenario and user needs to determine whether the setting of the air outlet needs to be adjusted. If the ratio is less than the ratio threshold, the system will assume that most of the people in the current area are in a non-working state or a lunch break, so the number of air outlets will be reduced or the opening of the air outlet will be reduced. This helps save energy, reduce noise, and provide a more comfortable environment for people.

[0068] In some embodiments, the control method further comprises: Acquire a fourth image of the target area from a fifth camera, and determine the size and opening angle of doors and windows in the target area according to the fourth image; When there is a door or window in the target area whose opening angle is greater than a first angle threshold, a prompt to close the door or window is sent to the administrator; When the opening angles of the doors and windows of the target area are less than or equal to the first angle threshold, predicting a fourth temperature value at a target time according to the current operation mode, the sizes of the doors and windows, and the opening angles, where the target time is the time corresponding to the target operation time of the current operation mode; The fifth temperature value at the target time is obtained, and the difference between the fourth temperature value and the fifth temperature value is calculated. When the difference is greater than a difference threshold, a prompt message to clean the air conditioner is sent to the administrator.

[0069] The fifth camera in the target area is used to capture a live video stream or a static image (i.e., the fourth image). This camera should be placed in a position where the doors and windows of the target area can be clearly observed. Image analysis is performed on the captured fourth image. By applying image recognition techniques (such as edge detection, contour recognition, etc.), the system can identify the doors and windows in the image and further determine their sizes and opening angles through calculation. When the system determines the opening angles of the doors and windows, it compares these angles with the preset first angle threshold. If the opening angle of any door or window is greater than the first angle threshold, the system will consider that the opening of these doors or windows may have a greater impact on the indoor temperature, so it will issue a prompt message to the administrator to recommend that the doors or windows be closed. If the opening angles of all doors and windows in the target area are less than or equal to the first angle threshold, the system will enter the temperature prediction mode. First, it will determine the current central air conditioning operation mode (i.e., the number and opening degree of the open air outlets) and the target operation time of the mode. Next, the system will use a temperature prediction algorithm (such as a prediction model based on machine learning) to predict the indoor temperature at the target time (i.e., the time corresponding to the target duration of the current operation mode) in combination with the current operation model and the size and opening angle of the door and window, i.e., the fourth temperature value. At the target time, the system will obtain the actual indoor temperature value, i.e., the fifth temperature value. The fifth temperature value can be obtained by a temperature sensor or other temperature detection device. Next, the system will calculate the difference between the predicted fourth temperature value and the actually obtained fifth temperature value. The calculation method of the difference can be defined according to specific needs, for example, an absolute difference, a relative difference, etc. can be used. The system will determine whether the calculated difference is greater than a preset difference threshold. If the difference is greater than the threshold, the system will believe that there is a large deviation between the actual operation effect of the air conditioner and the predicted value, which may be caused by dust accumulation inside the air conditioner, filter blockage, etc. Therefore, the system will send a prompt message to the administrator, suggesting that he clean or maintain the air conditioner.

[0070] This embodiment also discloses a control system for a central air conditioner in an intelligent building. Figure 3 Schematic diagram of a module of a control system for a central air conditioner in an intelligent building disclosed in an embodiment of the present application, such as Figure 3 As shown, the control system includes a judgment module 301, a coding module 302 and an execution module 303, wherein: The judgment module 301 is configured to obtain a first image from a first camera at a first preset time interval, and judge whether the number of people in the first image exceeds a first number threshold; The coding module 302 is configured to obtain a first code of the first camera when the number of people in the first image exceeds the first number threshold, and determine a first air outlet group corresponding to the first camera according to the first code based on a first preset corresponding relationship; The execution module 303 is configured to determine the target temperature sensor group corresponding to the first camera according to the code based on a second preset correspondence relationship, obtain a first temperature value of a first sub-temperature sensor in the target temperature sensor group, and control the opening and closing of the corresponding air outlet in the first air outlet group according to the first temperature value, wherein the first sub-temperature sensor is any one temperature sensor in the target temperature sensor group.

[0071] Optionally, the control system includes a relationship module, and the relationship module is configured to: Divide each floor of the building into an area, and assign a unique first code to each camera, wherein the first code includes a floor number, an area number, and a first serial number; Assigning a unique second code to each air outlet, wherein the second code includes a floor number, an area number, a first group number, and a second serial number; Assigning a unique third code to each temperature sensor, wherein the third code includes a floor number, an area number, a second group number and a third serial number; A first preset corresponding relationship between the first code and the second code is established according to the position relationship, a second preset corresponding relationship between the first code and the third code is established, and a third preset corresponding relationship between the second code and the third code is established.

[0072] Optionally, the execution module 303 is configured to: Determine the target air outlet group corresponding to the first sub-temperature sensor according to a third preset corresponding relationship; When the first temperature value is greater than a first temperature threshold, increasing the opening of the air outlets in the target air outlet group or increasing the number of air outlets opened in the target air outlet group; When the first temperature value is less than a second temperature threshold, the opening of the air outlets in the target air outlet group is reduced or the number of opened air outlets in the target air outlet group is reduced, and the second temperature threshold is less than the first temperature threshold.

[0073] Optionally, the execution module 303 is configured to: When the first temperature value is greater than a first temperature threshold, determining to increase a first opening of the air outlet or to increase a first number of air outlets according to a difference between the first temperature value and the first temperature threshold, and obtaining a second temperature value of the first sub-temperature sensor in the target temperature sensor group at a second preset time interval, wherein the second preset time is less than the first preset time; When the second temperature value is greater than the first temperature threshold, all the air outlets in the target air outlet group are opened and the opening degrees of the air outlets are set to a first target opening degree.

[0074] Optionally, the control system further comprises an adjacency module, wherein the adjacency module is configured to: When all first temperature values ​​in the target temperature sensor group are greater than a first temperature threshold, all air outlets in the first air outlet group are opened, and a second temperature value of a first sub-temperature sensor in the target temperature sensor group is obtained at a third preset time interval, and the third preset time is less than the first preset time; When all second temperature values ​​in the target temperature sensor group are greater than the first temperature threshold, determining whether all air outlets in a second air outlet group are open, the second air outlet group being an air outlet group corresponding to a second camera, the second camera being a camera with a first serial number adjacent to the first camera; When all the air outlets in the second air outlet group are opened, the air outlet temperature of the central air conditioner is lowered.

[0075] Optionally, the control system further includes an identification module, wherein the identification module is configured to: Acquire a second image of a third camera at a preset position, perform face recognition on the second image, and match the recognition result with a preset database to determine a work destination of a target person in the second image, wherein the work destination includes a work floor and a work area, and the preset database is used to store a correspondence between the target person and the work destination; Determine whether the target person is the first person matched to the work destination in the current cycle; When the target person is the first person matched to the work destination in the current cycle, the first-level air outlet of the work destination is opened; When the target person is not the first person matched to the work destination in the current period, the current number of people at the work destination is increased by one, and it is determined whether the current number of people is greater than a second number threshold; When the current number of people is greater than a second number threshold, the second-level air outlet of the work destination is opened.

[0076] Optionally, the control system further includes a lunch break module, and the lunch break module is configured to: Determine whether the current brightness of the target area is less than the brightness threshold; When the current brightness of the target area is less than the brightness threshold, obtaining a third image of the target area by a fourth camera, and determining whether the number of people in the third image exceeds a third number threshold, and the third number threshold is less than the first number threshold; When the number of people in the third image exceeds the third number threshold, determining the number of people in the third image with a preset posture and the total number of people, calculating the ratio of the number of people to the total number of people, and determining whether the ratio is less than the ratio threshold; When the ratio is less than the ratio threshold, the number of air outlets is reduced or the opening of the air outlets is lowered.

[0077] It should be noted that: when the device provided in the above embodiment realizes its function, only the division of the above functional modules is used as an example. In actual application, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0078] This embodiment also discloses an electronic device, referring to Figure 4 The electronic device may include: at least one processor 401 , at least one communication bus 402 , a user interface 403 , a network interface 404 , and at least one memory 405 .

[0079] The communication bus 402 is used to realize the connection and communication between these components.

[0080] The user interface 403 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 403 may also include a standard wired interface and a wireless interface.

[0081] The network interface 404 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

[0082] Among them, the processor 401 may include one or more processing cores. The processor 401 uses various interfaces and lines to connect various parts in the entire server, and executes various functions of the server and processes data by running or executing instructions, programs, code sets or instruction sets stored in the memory 405, and calling data stored in the memory 405. Optionally, the processor 401 can be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA). The processor 401 can integrate one or a combination of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU) and a modem. Among them, the CPU mainly processes the operating system, user interface and application programs; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 401, and it can be implemented separately through a chip.

[0083] Among them, the memory 405 may include a random access memory (Random Access Memory, RAM) and may also include a read-only memory (Read-Only Memory). Optionally, the memory 405 includes a non-transitory computer-readable storage medium. The memory 405 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 405 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 405 may also be optionally at least one storage device located away from the aforementioned processor 401. As Figure 4 As shown, the memory 405 as a computer storage medium may include an operating system, a network communication module, a user interface module, and an application program of a control method for a central air conditioner in an intelligent building.

[0084] exist Figure 4In the electronic device shown, the user interface 403 is mainly used to provide an input interface for the user and obtain data input by the user; and the processor 401 can be used to call the application program for storing the control method of the intelligent building central air conditioner in the memory 405. When executed by one or more processors 401, the electronic device executes one or more methods in the above-mentioned embodiments.

[0085] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the order of the actions described, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for the present application.

[0086] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0087] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0088] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0089] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0090] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory 405, including a number of instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned memory 405 includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk.

[0091] The above is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the disclosure of the specification and the truth of practice, it will be easy for those skilled in the art to think of other embodiments of the present disclosure. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field that are not recorded in the present disclosure. The description and examples are regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A control method for central air conditioning in an intelligent building, characterized in that: Applied to the central air conditioning control platform, the control method includes: Acquire a first image from a first camera at a first preset time interval, and determine whether the number of people in the first image exceeds a first number threshold; When the number of people in the first image exceeds the first number threshold, obtaining a first code of the first camera, and determining a first air outlet group corresponding to the first camera according to the first code based on a first preset corresponding relationship; Based on the second preset correspondence, the target temperature sensor group corresponding to the first camera is determined according to the code, the first temperature value of the first sub-temperature sensor in the target temperature sensor group is obtained, and the opening and closing of the corresponding air outlet in the first air outlet group is controlled according to the first temperature value, and the first sub-temperature sensor is any one temperature sensor in the target temperature sensor group.

2. The control method of the intelligent building central air conditioner according to claim 1, characterized in that: The control method comprises: Divide each floor of the building into an area, and assign a unique first code to each camera, wherein the first code includes a floor number, an area number, and a first serial number; Assigning a unique second code to each air outlet, wherein the second code includes a floor number, an area number, a first group number, and a second serial number; Assigning a unique third code to each temperature sensor, wherein the third code includes a floor number, an area number, a second group number and a third serial number; A first preset corresponding relationship between the first code and the second code is established according to the position relationship, a second preset corresponding relationship between the first code and the third code is established, and a third preset corresponding relationship between the second code and the third code is established.

3. The control method of the intelligent building central air conditioner according to claim 1, characterized in that: The controlling the opening and closing of the corresponding air outlets in the first air outlet group according to the first temperature value includes: Determine the target air outlet group corresponding to the first sub-temperature sensor according to a third preset corresponding relationship; When the first temperature value is greater than a first temperature threshold, increasing the opening of the air outlets in the target air outlet group or increasing the number of opened air outlets in the target air outlet group; When the first temperature value is less than a second temperature threshold, the opening of the air outlets in the target air outlet group is reduced or the number of opened air outlets in the target air outlet group is reduced, and the second temperature threshold is less than the first temperature threshold.

4. The control method of the intelligent building central air conditioner according to claim 3 is characterized in that: When the first temperature value is greater than a first temperature threshold, increasing the opening of the air outlets in the target air outlet group or increasing the number of opened air outlets in the target air outlet group includes: When the first temperature value is greater than a first temperature threshold, determining to increase a first opening of the air outlet or to increase a first number of air outlets according to a difference between the first temperature value and the first temperature threshold, and obtaining a second temperature value of the first sub-temperature sensor in the target temperature sensor group at a second preset time interval, wherein the second preset time is less than the first preset time; When the second temperature value is greater than the first temperature threshold, all the air outlets in the target air outlet group are opened and the opening degrees of the air outlets are set to a first target opening degree.

5. The control method of the intelligent building central air conditioner according to claim 3, characterized in that: The control method further comprises: When all first temperature values ​​in the target temperature sensor group are greater than a first temperature threshold, all air outlets in the first air outlet group are opened, and a second temperature value of a first sub-temperature sensor in the target temperature sensor group is obtained at a third preset time interval, and the third preset time is less than the first preset time; When all second temperature values ​​in the target temperature sensor group are greater than the first temperature threshold, determining whether all air outlets in a second air outlet group are open, the second air outlet group being an air outlet group corresponding to a second camera, the second camera being a camera with a first serial number adjacent to the first camera; When all the air outlets in the second air outlet group are opened, the air outlet temperature of the central air conditioner is lowered.

6. The control method of the intelligent building central air conditioner according to claim 1, characterized in that: The control method further comprises: Acquire a second image of a third camera at a preset position, perform face recognition on the second image, and match the recognition result with a preset database to determine a work destination of a target person in the second image, wherein the work destination includes a work floor and a work area, and the preset database is used to store a correspondence between the target person and the work destination; Determine whether the target person is the first person matched to the work destination in the current cycle; When the target person is the first person matched to the work destination in the current cycle, the first-level air outlet of the work destination is opened; When the target person is not the first person matched to the work destination in the current period, the current number of people at the work destination is increased by one, and it is determined whether the current number of people is greater than a second number threshold; When the current number of people is greater than a second number threshold, the second-level air outlet of the work destination is opened.

7. The control method of the intelligent building central air conditioner according to claim 1, characterized in that: The control method further comprises: Determine whether the current brightness of the target area is less than the brightness threshold; When the current brightness of the target area is less than the brightness threshold, obtaining a third image of the target area by a fourth camera, and determining whether the number of people in the third image exceeds a third number threshold, and the third number threshold is less than the first number threshold; When the number of people in the third image exceeds the third number threshold, determining the number of people in the third image with a preset posture and the total number of people, calculating the ratio of the number of people to the total number of people, and determining whether the ratio is less than the ratio threshold; When the ratio is less than the ratio threshold, the number of air outlets is reduced or the opening of the air outlets is lowered.

8. A control system for central air conditioning in an intelligent building, characterized in that: It includes a judgment module, a coding module and an execution module, wherein: A judgment module, configured to obtain a first image from a first camera at a first preset time interval, and judge whether the number of people in the first image exceeds a first number threshold; a coding module configured to obtain a first code of the first camera when the number of people in the first image exceeds the first number threshold, and determine a first air outlet group corresponding to the first camera according to the first code based on a first preset corresponding relationship; An execution module is configured to determine the target temperature sensor group corresponding to the first camera according to the code based on a second preset correspondence relationship, obtain a first temperature value of a first sub-temperature sensor in the target temperature sensor group, and control the opening and closing of the corresponding air outlet in the first air outlet group according to the first temperature value, wherein the first sub-temperature sensor is any one temperature sensor in the target temperature sensor group.

9. An electronic device, characterized in that: It includes a processor, a memory, a user interface and a network interface, the memory is used to store instructions, the user interface and the network interface are both used to communicate with other devices, and the processor is used to execute the instructions stored in the memory so that the electronic device executes the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed, the method according to any one of claims 1 to 7 is executed.

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