A public area low energy consumption control method and system

Abstract

The present application relates to a kind of public area low energy consumption control method, public area is divided into preferred room and secondary room, each preferred room or secondary room includes main control area and secondary control area;The number of people in public area is detected;If the number of people in secondary room is lower than the first threshold, the air conditioning wind speed of main control area is increased, and the air conditioning temperature correction value of secondary control area is reduced;If the number of people in secondary room is lower than the second threshold, air conditioner is closed;If the number of people in preferred room is zero, air conditioner is closed.The method of the present application can balance the temperature and illumination distribution in public area while saving energy when there are only a few people in public area, so that the personnel in the whole public area can have a better experience, and avoid directly closing air conditioner and lighting equipment to make personnel feel uncomfortable.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of air conditioner management, and particularly relates to a public area low-energy-consumption control method and system. BACKGROUND

[0002] School public classrooms and libraries begin to change the original simple way of using electric fans to reduce temperature in high-temperature seasons. More and more school public classrooms begin to be equipped with air conditioning equipment to improve the learning environment of students and improve the learning efficiency of students. A large amount of air conditioning energy consumption and lighting energy consumption is consumed during the operation of the public classroom. With the development of science and technology, the efficiency of the equipment itself and the lighting lamps has been greatly improved. However, due to the lack of school energy management technology and the backwardness of energy management means, the comprehensive utilization rate of air conditioning and lighting energy is not high. During the use of the public classroom, there is a lot of energy waste. At present, in the design of many new campuses of universities, middle schools and primary schools, the public classrooms mostly use cabinet air conditioners or VRV multi-connected machines with very convenient operation. Taking the VRV multi-connected machine as an example, students can set the temperature and change the operation mode through the operation panel. In actual use, many students want to turn on the air conditioner, but few students turn off the air conditioner afterwards. The air conditioner and lighting are often left unattended. Even when the public classroom is empty after the self-study, the air conditioner and lighting are still running, and the energy waste is very obvious.

[0003] How to reduce energy consumption and improve the efficiency of daily energy management of public classrooms to further improve the utilization rate of energy is a very worthy topic for us to study and explore. The function of the public classroom is to have classes and self-study. During the self-study period of students, the situation is the most complex. The number of students in the public classroom changes greatly. Sometimes, there is no one in the room, and the air conditioner and lighting are not attended at all.

[0004] In order to reduce the overuse of energy in school public classrooms and avoid using a general and simple manual operation method, we need to find a more accurate and intelligent energy control system that can meet the learning requirements of students and reduce unnecessary energy waste to achieve the goal of improving energy utilization.

[0005] At present, the daily management of lighting and air conditioning in public classrooms is relatively lax. The daily operation adopts a manual mode. Students can turn on the air conditioner at will. Finally, the school security or cleaning personnel go on patrol and turn off the air conditioner at night. There are too many times when there are few people. The public classroom is used by teachers for classes and by students for self-study. The number of people changes constantly. The air conditioner and lighting have become the abandoned ones that are not cared for and paid attention to. A large amount of invalid energy is consumed during the long-term operation.

[0006] In addition, in the operation process of the classroom, the utilization rate of the classroom is different, some are frequently used, and some are rarely used; in different time periods, the number of users of the same public classroom is different; there are many people during the class, and fewer people during self-study; there are many students during self-study from 19:00 to 20:30 in the evening, and fewer students after 20:30; there are many students during normal study, and fewer students during the weekend and holidays. The full load (fixed) operation mode of air conditioning and lighting obviously causes waste of energy.

[0007] In view of the above problems, some control systems currently exist, which divide the classroom into multiple air conditioning and lighting areas, and when the number of people in the classroom is below a certain threshold, the air conditioning and lighting in some areas are turned off, so as to dynamically and flexibly save the energy consumption of the equipment according to the number of people.

[0008] However, the existing control system has the following problems: if the number of students in the entire classroom is used as a criterion for turning off the air conditioning of each area, the temperature distribution in the entire classroom will be seriously uneven, the area where the air conditioning is turned off will be relatively cold, and the area where the air conditioning is not turned off will have a lower temperature, but the students will still be scattered in the areas where the air conditioning is turned off and not turned off, and the feeling will be poor. In addition, since the distribution of students in the classroom is not uniform, even if some control systems use the number of students covered by a certain area as a criterion for individual control, the air conditioning and lighting in the area with people are kept on and the air conditioning and lighting in the area without people are turned off, the temperature and lighting distribution will still be uneven, the feeling will be poor when moving from one area to another, and there will also be a serious light defect, which affects the students' reading. SUMMARY

[0009] Based on the above-mentioned shortcomings and deficiencies in the prior art, one of the purposes of the present application is to at least solve one or more of the above-mentioned problems in the prior art, in other words, one of the purposes of the present application is to provide a public area low energy consumption control method and system which meets one or more of the above-mentioned needs.

[0010] In order to achieve the above-mentioned purposes of the application, the following technical solutions are adopted in the present application:

[0011] A public area low energy consumption control method for controlling the energy consumption of a public area, the method specifically comprising:

[0012] The public area includes preferred rooms and secondary rooms, and each preferred room or secondary room includes a main control area and a secondary control area;

[0013] A sensor detects the number of people in each preferred room and secondary room;

[0014] A controller controls as follows according to the number of people in each preferred room and secondary room:

[0015] If the number of people in a selected room is lower than a first threshold, the air conditioning temperature correction value of the primary control area of the selected room is decreased.

[0016] If the number of people in a selected room is lower than a second threshold, the air conditioning of the selected room is turned off, the second threshold being lower than the first threshold.

[0017] If the number of people in a primary selected room is zero, the air conditioning of the primary selected room is turned off.

[0018] As a preferred solution, the method further comprises:

[0019] The controller further controls according to the number of people in each selected room as follows:

[0020] If the number of people in a selected room is lower than a first threshold, the lighting power of the secondary control area of the selected room is decreased.

[0021] If the number of people in a selected room is lower than a second threshold, the lighting of the selected room is turned off.

[0022] If the number of people in a primary selected room is zero, the lighting of the primary selected room is turned off.

[0023] As a preferred solution, the method further comprises:

[0024] The controller forces the air conditioning to run at a preset air conditioning power for a preset time.

[0025] As a further preferred solution, the method further comprises:

[0026] When the indoor temperature of the room is within a preset range, the controller does not force the air conditioning to run at a preset air conditioning power.

[0027] As a preferred solution, the method further comprises:

[0028] The controller further controls according to the number of people in the selected room as follows:

[0029] If the number of people in a selected room is lower than a first threshold, the air conditioning temperature correction value of the primary control area of the selected room is decreased.

[0030] In another aspect, the application also provides a public area low energy consumption control system, specifically comprising:

[0031] An air conditioning unit, the public area is divided into primary selected rooms and secondary selected rooms, each primary selected room or secondary selected room comprises a primary control area and a secondary control area, and the air conditioning unit is distributed in the primary control area and the secondary control area of each primary selected room or secondary selected room.

[0032] The number detecting unit comprises sensors for detecting the number of people in each primary room and secondary room.

[0033] The controller controls the public area according to the number of people in each primary room and secondary room as follows:

[0034] If the number of people in a certain secondary room is lower than a first threshold, the air conditioning speed of the primary control area of the secondary room is increased, and the air conditioning temperature correction value of the secondary control area of the secondary room is decreased.

[0035] If the number of people in a certain secondary room is lower than a second threshold, the air conditioning of the secondary room is turned off, and the second threshold is lower than the first threshold.

[0036] If the number of people in a certain primary room is zero, the air conditioning of the primary room is turned off.

[0037] As a preferred solution, the system further comprises:

[0038] The lighting unit is distributed in the primary control area and the secondary control area of each primary room or secondary room.

[0039] The controller further controls according to the number of people in each secondary room as follows:

[0040] If the number of people in a certain secondary room is lower than a first threshold, the lighting power of the secondary control area of the secondary room is decreased.

[0041] If the number of people in a certain secondary room is lower than a second threshold, the lighting of the secondary room is turned off.

[0042] If the number of people in a certain primary room is zero, the lighting of the primary room is turned off.

[0043] As a preferred solution, the system further comprises:

[0044] The controller is further used for manually setting the air conditioning power of a certain primary room or secondary room, so that the air conditioning is fixed to run at a certain preset air conditioning power for a certain preset time according to the manual setting.

[0045] Compared with the prior art, the present application has the beneficial effects that:

[0046] The method and system of the present application can balance the temperature and light distribution in the public area as much as possible under the condition that only a few people are left in the public area, save energy, and make the people in the entire public area have a better experience, avoiding the direct closing of the equipment to make the people feel uncomfortable. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 is a layout schematic diagram of a public area according to an embodiment of the present application;

[0048] Figure 2 is a flow chart of a public area low energy consumption control method according to an embodiment of the present application. DETAILED DESCRIPTION

[0049] In order to more clearly illustrate the embodiments of the present application, the specific embodiments of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0050] Embodiment: The embodiment provides a public area low energy consumption control method, the method comprising the following steps:

[0051] A public area low energy consumption control method, the method specifically comprising:

[0052] In the controller, corresponding settings are made, or the controller is pre-configured, and the public area is divided into preferred rooms and secondary rooms.

[0053] For a public area, such as a school, a library, etc., generally has multiple classrooms and reading rooms. The rooms in a public area, such as classrooms and reading rooms, are divided into two categories, preferred rooms or secondary rooms, according to certain operation considerations or random selection.

[0054] The number of preferred rooms is generally less than that of secondary rooms, but in some special cases, it can be equal to or more than that of secondary rooms.

[0055] Each preferred room or secondary room is a room structure with a certain area, which has an area for students and other personnel to stay and use. The area in each room is divided into a main control area and a secondary control area, and each room has both a main control area and a secondary control area.

[0056] Similar to the relationship between preferred rooms and secondary rooms, in each room, the area of the main control area is generally less than that of the secondary control area, but in some special cases, it can be equal to or more than that of the secondary control area.

[0057] The specific layout can be as shown in Figure 1 For example, a public classroom in a school, the classroom area is 90 square meters, the student seat is 90, and the VRV air conditioner is four air outlets, a total of four, which are installed on the left and right sides of the classroom. We divide the classroom into two virtual energy consumption areas, i.e. the main control area in the front half of the classroom and the secondary control area in the back half of the classroom.

[0058] For the partition of the public staircase classroom, the virtual partition should be made according to the specific building conditions. The left and right partitions can be made, and the front and back partitions can also be made. In order to make the air conditioning effect of the classroom operation area better, the last row area (the highest area) of the staircase classroom can be used as the main control area in winter, and the first row area (the lowest area) can be used as the main control area in summer.

[0059] After the preferred room and the secondary room, the main control area and the secondary control area are divided, in the actual operation of the public area, the number of people in each room is detected in real time by using the sensor.

[0060] The above-mentioned preferred room is a room that is more recommended for personnel to stay compared to the secondary room. When the flow of people is insufficient and the power of the air conditioning and lighting equipment needs to be reduced for energy saving, the air conditioning and lighting system of the secondary room will be closed or reduced in priority, so as to guide the personnel to the preferred room as much as possible to supply air conditioning and lighting.

[0061] The concept of the main control area and the secondary control area in the room is similar to that of the preferred room and the secondary room. The main control area is a more recommended area for personnel to stay. When the number of people in the current room is low, the air conditioning and lighting supply of the secondary control area is reduced to guide the personnel in the room to the main control area as much as possible. However, the guidance needs to be achieved through a relatively flexible and gentle temperature difference and body sensation difference to avoid making the personnel in the secondary control area feel a larger physical discomfort.

[0062] After the above-mentioned number detection, the specific flow chart of the control method is as shown in Figure 2 If the main control detection obtains that the number of people in a certain preferred room is lower than a preset first threshold value, the air conditioning wind speed of the main control area of the room is increased, and the air conditioning temperature correction value of the secondary control area of the room is reduced. On the basis of reducing the energy consumption of the secondary control area, the temperature of the main control area is diffused to form a smaller temperature difference between the main control area and the secondary control area, so as to realize flexible and gentle guidance.

[0063] In some embodiments of the present application, the above-mentioned first threshold value can be set to a certain percentage of the peak number of people, such as 10% of the peak number of people; or it can also be set to a fixed number of people, such as 10 people.

[0064] The peak number of people can refer to the multi-day average of the number of people in the current public area or room at the peak time, or a fixed number can be directly set.

[0065] In some embodiments of the present application, the above-mentioned reduction of the air conditioning temperature correction value is a relative concept. When the air conditioner is used for cooling in summer, the air conditioner corrects the environment temperature downward to make the indoor temperature lower, and then the actual temperature after the reduction of the air conditioning temperature correction value is a higher temperature. If the air conditioner is used for heating in winter, the air conditioner corrects the environment temperature upward to make the indoor temperature higher, and then the reduced air conditioning temperature correction value is a lower temperature.

[0066] If the number of people in a certain secondary room further decreases after being below the first threshold, and is below a second threshold, it means that the number of people in the room is too small, and there is no need to turn on the air conditioner, so the air conditioner in the room is directly turned off, and the flow of people is pushed to the preferred room.

[0067] If the number of people in a certain preferred room is equal to zero, the preferred room is completely empty, and the air conditioner can also be turned off.

[0068] In some embodiments of the present application, the second threshold can be set to a very small number, such as 1 person, 2 people, 3 people, when there are only a few people or even 0 people in the room, the air conditioner is turned off, otherwise the air conditioner power in the master area and the secondary control area is controlled according to the first threshold.

[0069] In addition, since the power consumption in the public area is not only consumed by the air conditioner, but also consumed by the lighting, in some embodiments of the present application, when the number of people in a certain secondary room is below the first threshold, in addition to adjusting the air conditioner, the lighting intensity in the secondary control area of the room is also reduced.

[0070] At the same time, if the number of people in a certain secondary room is too low, below the second threshold, in order not to waste power, the lighting in the room is directly turned off.

[0071] The preferred room is the room that everyone is recommended to go to, even if the number of people is below the second threshold, the lighting is not turned off, and only when the number of people is zero, the lighting is turned off.

[0072] In some embodiments of the present application, in order to deal with temporary use of the room, or to avoid the use of a short period of low number of people affecting the normal work of the air conditioner, a manual setting function is also added to the air conditioner: manually set the air conditioner temperature in the master area or the secondary control area of the current room, and set the temperature for a period of time. Even if the number of people in the secondary room is below the first threshold, the air conditioner will not automatically reduce the temperature correction value, but will override the automatic adjustment of the temperature according to the manually set temperature, so as to continue to run at a fixed air conditioner power for a preset time.

[0073] But if the number of people in the secondary room is below the second threshold, the manual setting duration will be shortened, that is, when the number of people in the room is too small, the air conditioner after manual setting can still run at a fixed air conditioner power for a preset time, but the time will be shorter than when the number of people is above the second threshold. Try to reduce the situation that one or two people in the room always run the air conditioner through manual setting, causing wasteful occupation and consumption of energy.

[0074] For similar purposes, in some further embodiments of the present application, when the indoor temperature is in a certain preset range, the manual setting is invalid, and the air conditioner cannot be forced to run at a certain preset power. For example, when the indoor temperature in summer has reached about 26°C (when the ambient humidity is large, the preset temperature range can be set to 24°C), the manual setting is invalid, and the air conditioner can only be automatically adjusted to minimize energy waste.

[0075] In some embodiments of the present application, in order to improve the guiding effect of the temperature in the room on the personnel and try to guide the personnel from the secondary selected room to the primary selected room, the method further comprises: if the number of personnel in a certain secondary selected room is lower than a first threshold, reducing the air conditioning temperature correction value of the primary control area of the secondary selected room. In some embodiments, the air conditioning temperature correction value is reduced by 1-2 degrees Celsius, and the air conditioning temperature correction value of the primary control area is changed more slightly than that of the secondary control area, so as to slightly reduce the comfort of the current room as a whole within a reasonable range, and try to guide the personnel to leave the current room and go to the primary selected room to provide air conditioning and lighting.

[0076] In another aspect, the present application also provides a public area low-energy consumption control system, which specifically comprises:

[0077] An air conditioning unit, the public area is divided into primary selected rooms and secondary selected rooms, each primary selected room or secondary selected room comprises a primary control area and a secondary control area, and the air conditioning unit is distributed in the primary control area and the secondary control area of each primary selected room or secondary selected room.

[0078] A number detection unit, which uses a sensor to detect the number of personnel in each primary control area and secondary control area. In some embodiments, the sensor uses a people flow camera, and the number of personnel is counted using the people flow camera device arranged at the entrance of the room, and the total number of remaining personnel in multiple rooms on the same floor is counted through the people flow camera arranged at both ends of the corridor.

[0079] A controller, which is used to determine whether the number of personnel in a certain secondary selected room is lower than a first threshold, and if so, to increase the air conditioning unit wind speed of the primary control area of the secondary selected room and to reduce the air conditioning temperature correction value of the secondary control area of the secondary selected room. The controller is also used to determine whether the number of personnel in a certain primary selected room or secondary selected room is lower than a second threshold, and if so, to turn off the air conditioning unit of the primary selected room or secondary selected room.

[0080] In addition, in order to realize the lighting adjustment function of some of the above methods, in some embodiments of the present application, the public area low-energy consumption control system further comprises a lighting unit, which is configured in groups with the air conditioning unit and is distributed in the primary control area and the secondary control area of each primary selected room or secondary selected room.

[0081] The controller is further configured to reduce the lighting of the sub-control area of the selected room when the number of people in the selected room is below a first threshold value, to turn off the lighting unit of the selected room when the number of people in the selected room is below a second threshold value, and to turn off the lighting unit of the first selected room when the number of people in the first selected room is zero.

[0082] In some embodiments of the present application, in order to realize the manual setting process of the above-mentioned method, the controller is further configured to set the main control area or the sub-control area, and control the air conditioning unit to run for a preset time.

[0083] The above-mentioned control system is aimed at the intermittent and disordered energy use characteristics of some public areas. The remaining number of people in the public area is determined by the people flow camera, and the actual number of people is compared with the preset value triggered by the control system. The control system accurately controls the running state of the air conditioning and lighting lamps, thereby reducing a large amount of invalid energy, and at the same time, the environmental comfort requirements of the personnel are met as much as possible.

[0084] It should be noted that the above-mentioned embodiments only explain the preferred embodiments and principles of the present application. For ordinary skilled persons in the art, the specific implementation manners will be changed according to the idea provided by the present application, and these changes should be regarded as the protection scope of the present application.

Claims

1. A public area low energy consumption control method for controlling public area energy consumption, characterized by, The method specifically comprises the following steps. The public area is divided into preferred rooms and non-preferred rooms, each of the preferred rooms or non-preferred rooms is divided into a master control area and a slave control area, and air conditioning units are distributed in the master control area and the slave control area of each of the preferred rooms and non-preferred rooms. A sensor detects the number of people in each of the preferred rooms and non-preferred rooms. A controller controls as follows according to the number of people in each of the preferred rooms and non-preferred rooms. If the number of people in a non-preferred room is lower than a first threshold value, the air conditioning wind speed of the master control area of the non-preferred room is increased, and the air conditioning temperature correction value of the slave control area of the non-preferred room is decreased. If the number of people in a preferred room is zero, the air conditioning of the preferred room is turned off. The method further comprises the following steps.

2. The public area low energy consumption control method of claim 1, wherein, The controller further controls as follows according to the number of people in each of the non-preferred rooms. If the number of people in a non-preferred room is lower than a first threshold value, the lighting power of the slave control area of the non-preferred room is decreased. If the number of people in a non-preferred room is lower than a second threshold value, the lighting of the non-preferred room is turned off. If the number of people in a preferred room is zero, the lighting of the preferred room is turned off. The method further comprises the following steps.

3. The public area low energy consumption control method of claim 1, wherein, The controller forcibly controls the air conditioning to run at a preset air conditioning power for a preset time. The method further comprises the following steps.

4. The public area low energy consumption control method of claim 3, wherein, When the indoor temperature of the room is in a preset range, the controller does not forcibly control the air conditioning to run at a preset air conditioning power. The method further comprises the following steps.

5. The public area low energy consumption control method of claim 1, wherein, The controller further controls as follows according to the number of people in each of the non-preferred rooms. If the number of people in a non-preferred room is lower than a first threshold value, the air conditioning temperature correction value of the master control area of the non-preferred room is decreased. The method specifically comprises the following steps.

6. A public area low energy consumption control system, characterized by, Air conditioning units, a public area is divided into preferred rooms and non-preferred rooms, each of the preferred rooms or non-preferred rooms is divided into a master control area and a slave control area, and the air conditioning units are distributed in the master control area and the slave control area of each of the preferred rooms and non-preferred rooms. A number detection unit comprising a sensor, which is used to detect the number of people in each of the preferred rooms and non-preferred rooms. A controller, which is used to control as follows according to the number of people in each of the preferred rooms and non-preferred rooms. If the number of people in a non-preferred room is lower than a first threshold value, the air conditioning wind speed of the master control area of the non-preferred room is increased, and the air conditioning temperature correction value of the slave control area of the non-preferred room is decreased. If the number of people in a preferred room is zero, the air conditioning of the preferred room is turned off. The system further comprises the following steps. Lighting units, which are distributed in the master control area and the slave control area of each of the preferred rooms or non-preferred rooms.

7. A common area low energy control system as claimed in claim 6, wherein, The controller further controls as follows according to the number of people in each of the non-preferred rooms. If the number of people in a non-preferred room is lower than a first threshold value, the lighting power of the slave control area of the non-preferred room is decreased. If the number of people in a non-preferred room is lower than a second threshold value, the lighting of the non-preferred room is turned off. ​ ​ If the number of people in a said preferred room is zero, the lighting of the preferred room is turned off.

8. A common area low energy control system as claimed in claim 6, wherein, The system further comprises: The controller is further configured to manually set the air conditioning power of a said preferred room or a said secondary room, so that the air conditioner is fixed to run at a said manually set air conditioning power for a said preset time.

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