Intelligent auxiliary lighting energy-saving control system for building

Abstract

The invention relates to the technical field of intelligent buildings, in particular to an intelligent auxiliary lighting energy-saving control system for a building, and the system comprises a plurality of lighting devices; the power storage device is used for storing the electric energy converted and obtained by the new energy power generation device; the control equipment is used for controlling the lighting devices in the public area in the building according to a first control strategy and controlling the lighting devices in the non-public area in the building according to a second control strategy; when the electricity storage quantity in the electricity storage device is larger than a preset proportion and the power generation efficiency of the new energy power generation device is larger than a preset value, the electricity storage device is called to supply power to the lighting device, otherwise, the mains supply is called to supply power to the lighting device. By adopting the scheme provided by the invention, the power supply pressure of a power grid can be relieved, the consumption of fire coal is reduced, and energy conservation and emission reduction are realized; and meanwhile, on the premise that the energy-saving target is achieved, the requirement of a user for the lighting comfort degree can be met to the maximum degree, and intelligent and humanized regulation and control of the lighting device are achieved.

Description

Technical Field

[0001] The present application relates to the field of intelligent building technology, and in particular to an intelligent auxiliary lighting energy-saving control system for a building. Background Art

[0002] With the development of economy, people's living standards have been significantly improved, and the requirements for lighting effects are getting higher and higher. Therefore, the lighting energy consumption has increased year by year. In public buildings such as office buildings and commercial office buildings, the proportion of lighting energy consumption can reach 20%-40%, of which a considerable part belongs to "ineffective lighting", resulting in a huge waste of resources. The existing lighting energy-saving control scheme usually reduces the working time of lighting devices within a fixed period of time or reduces the number of lighting devices enabled by a fixed amount. It is not intelligent enough and has poor energy-saving effect. In addition, although the existing lighting energy-saving control scheme can reduce power loss to a certain extent, the huge power consumption in public buildings during the peak period of electricity consumption will still cause considerable pressure on the power grid. Therefore, it is of great significance to explore the intelligent lighting energy-saving ways and methods suitable for buildings and study the intelligent lighting energy-saving control system that meets user needs. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a building intelligent auxiliary lighting energy-saving control system to reduce the energy consumption of building lighting and improve lighting comfort.

[0004] In order to achieve the above-mentioned objectives, the first aspect of the present application provides a building intelligent auxiliary lighting energy-saving control system, the system comprising: a plurality of lighting devices; a new energy power generation device for converting other forms of energy into electrical energy, the new energy power generation device comprising a photovoltaic power generation device and a wind power generation device; a power storage device for storing electrical energy converted by the new energy power generation device; a control device for controlling the lighting devices in the public areas of the building according to a first control strategy and for controlling the lighting devices in the non-public areas of the building according to a second control strategy; when the storage capacity in the power storage device is greater than a preset ratio and the power generation efficiency of the new energy power generation device is greater than a preset value, the power storage device is called to supply power to the lighting device, otherwise the mains power is called to supply power to the lighting device.

[0005] Based on the first aspect, in an embodiment of the present application, the public area includes stairs, corridors or public toilets; the system also includes: a first illuminance measuring device, used to measure the illuminance of the public area; the control device also includes: a first control unit, used to execute a first control strategy, the first control strategy including: during the working time period, when the natural light illuminance of the preset target area is not lower than the first expected illuminance, turning off the lighting device in the target area; when the natural light illuminance of the preset target area is lower than the first expected illuminance, compensating the illuminance of the target area to the first expected illuminance by adjusting the power of the lighting device in the target area.

[0006] Based on the first aspect, in an embodiment of the present application, the system also includes: a positioning system for obtaining real-time location information of people in the building; the first control strategy also includes: during non-working hours, judging whether someone has entered the target area based on the real-time location information, and if so, turning on the lighting device in the target area, and adjusting the power of the lighting device so that the illumination of the target area meets the first expected illumination; otherwise, turning off the lighting device in the target area.

[0007] Based on the first aspect, in an embodiment of the present application, the system also includes: a positioning system for obtaining real-time location information of people in the building; a path prediction module for predicting the movement path and destination of people in the building based on the real-time location information and the building map; the first control strategy also includes: during non-working hours, turning on the lighting devices of people in the building on the predicted movement path and predicted destination in advance.

[0008] Based on the first aspect, in an embodiment of the present application, the non-public area includes a conference room, and a projector is provided in the conference room; the energy-saving control system also includes: a personnel detection device, which is arranged in the conference room and is used to detect the number and position of people in the conference room; a second illuminance measuring device, which is used to measure the illuminance of the conference room; the control device also includes: a second control unit, which is used to execute a second control strategy, and the second control strategy includes: if the number of people in the conference room is zero or the natural light illuminance in the conference room is not lower than the second expected illuminance, then turn off all lighting devices in the conference room; otherwise, determine whether the projector is in an enabled state; if so, control the lighting devices in the conference room according to the viewing lighting mode; if not, determine whether the people in the conference room are dispersed according to the positions of each person in the conference room; if so, turn on all lighting devices in the conference room, and compensate the illuminance in the conference room to the second expected illuminance by adjusting the power of the lighting devices; if not, only turn on the lighting devices near the gathering place of people, with the goal of minimizing the total energy consumption of the lighting devices, and compensate the illuminance at the gathering place of people to the second expected illuminance by adjusting the power of the lighting devices.

[0009] Based on the first aspect, in the embodiment of the present application, if there are n lighting devices near the gathering place of people, and the n lighting devices have the same specification parameters, and their rated powers are all P R , then the illumination E where people gather A It can be expressed as:

[0010]

[0011] In formula (1), E i represents the illumination generated by the ith lighting device at the gathering place, E N represents the natural light illuminance at the place where people gather; the luminous flux of the i-th lighting device at the place where people gather is Φ i It can be expressed as:

[0012] Φ i =E i ×S (2)

[0013] In formula (2), S represents the irradiation area where people gather. Since the energy consumption of the lighting device is positively correlated with the luminous flux, the objective function is set with the minimum total luminous flux of the lighting device as the goal:

[0014]

[0015] The constraints are: E A ≥e2(4); in formula (4), e2 represents the second desired illumination;

[0016] The second control strategy also includes: solving the objective function to obtain the power of the n lighting devices respectively.

[0017] Based on the first aspect, in an embodiment of the present application, the personnel detection device includes a CMOS image sensor and at least three infrared ranging sensors that are not arranged on the same straight line.

[0018] The present application provides an intelligent building auxiliary lighting energy-saving control system, which has at least the following beneficial effects:

[0019] 1) By introducing power storage devices, the power supply pressure of the power grid can be alleviated, the consumption of coal can be reduced, and energy conservation and emission reduction can be achieved; at the same time, since the power generation law of new energy power generation devices has a certain randomness, this part of electricity can be consumed in time during the efficient power generation period of new energy power generation devices, which can improve the conversion efficiency of new energy to electric energy and improve the utilization rate of (new energy) resources;

[0020] 2) Different control strategies are adopted for different areas to meet the electricity needs of users in different occasions. Under the premise of achieving energy-saving goals, it can maximize the user's requirements for lighting comfort and realize intelligent and humanized regulation of lighting devices.

[0021] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings:

[0023] Figure 1 The structure block diagram of a building intelligent auxiliary lighting energy-saving control system according to an embodiment of the present application is schematically shown;

[0024] Figure 2 A flowchart of lighting control for a public area in an embodiment of the present application is schematically shown;

[0025] Figure 3 The lighting control flow chart of the conference room in the embodiment of the present application is schematically shown.

[0026] Description of Reference Numerals

[0027] 1-lighting device; 2-power storage device; 3-control device; 31-first control unit; 32-second control unit; 4-first illuminance measuring device; 5-positioning system; 6-path prediction module; 7-second illuminance measuring device; 8-new energy power generation device; 9-personnel detection device. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] Example 1

[0032] This embodiment provides a building intelligent auxiliary lighting energy-saving control system. Figure 1 As shown, the system comprises:

[0033] Several lighting devices 1, in this embodiment, use semiconductor lamps with high luminous efficiency (such as LEDs).

[0034] The new energy power generation device 8 is used to convert other forms of energy into electrical energy. The new energy power generation device 8 includes a photovoltaic power generation device and a wind power generation device; the power storage device 2 is used to store the electrical energy converted by the new energy power generation device 8; wherein, the photovoltaic power generation device includes a photovoltaic panel (assembly), a controller and an inverter. The photovoltaic panel directly converts sunlight into direct current and stores it in the power storage device 2 (battery). When necessary, the controller adjusts the current and voltage, and the inverter converts direct current into alternating current for use by the building lighting device 1; the wind power generation device includes a wind turbine, a rectifier charger and an inverter, etc. The wind turbine consists of a wind wheel (blades), a head (including a rotor and a stator), a rotor and a tail. The wind wheel captures wind power and converts it into mechanical energy. The rotor in the head cuts the magnetic lines of force by rotation, generating an induced electromotive force in the stator. The electric energy output by the wind turbine is variable alternating current, which usually needs to be rectified by a rectifier charger before charging the power storage device 2 . When necessary, the direct current is converted into alternating current through an inverter for use by the building lighting device 1 .

[0035] The control device 3 is used to control the lighting device 1 in the public area of ​​the building according to the first control strategy and to control the lighting device 1 in the non-public area of ​​the building according to the second control strategy; when the storage capacity in the power storage device 2 is greater than a preset proportion (for example, 70%) and the power generation efficiency of the new energy power generation device 8 is greater than a preset value, it is used to call the power storage device 2 to supply power to the lighting device 1, otherwise it calls the mains power to supply power to the lighting device 1.

[0036] In the above scheme, by introducing the power storage device 2, the power supply pressure of the power grid can be alleviated, the consumption of coal can be reduced, and energy conservation and emission reduction can be achieved; at the same time, since the power generation law of the new energy power generation device 8 has a certain randomness (the strength of sunlight or the size of wind will affect the efficiency of power conversion), in the efficient power generation period of the new energy power generation device 8, this part of the electric energy is consumed in time, which can improve the conversion efficiency of new energy to electric energy and improve the utilization rate of (new energy) resources. In addition, in this embodiment, different control strategies are adopted for different areas to meet the electricity needs of users in different occasions. On the premise of achieving the energy-saving goal, the user's requirements for lighting comfort can be guaranteed to the greatest extent, and the intelligent and humanized regulation of the lighting device 1 is realized.

[0037] Example 2

[0038] Specifically, the public area described in Example 1 may be a staircase, a corridor or a public toilet; the system further includes: a first illuminance measuring device 4, for measuring the illuminance of the public area (or the average illuminance in the area); a positioning system 5, for obtaining real-time position information of people in the building; the control device 3 further includes: a first control unit 31, for executing a first control strategy, the first control strategy including (such as Figure 2 shown):

[0039] During the working time period, when the natural light illumination of the preset target area is not lower than the first expected illumination, the lighting device 1 in the target area is turned off; when the natural light illumination of the preset target area is lower than the first expected illumination, the illumination of the target area is compensated to the first expected illumination by adjusting the power of the lighting device 1 in the target area.

[0040] During non-working hours, it is determined whether someone has entered the target area based on the real-time location information. If so, the lighting device 1 in the target area is turned on, and the power of the lighting device 1 is adjusted to make the illumination of the target area meet the first expected illumination; otherwise, the lighting device 1 in the target area is turned off.

[0041] The above working time period is mainly during the daytime, when most staff members in the office building work, such as 8:00-19:00 (adaptable to different time zones). During this period, there are many people in the public areas of the office building and the activity range is wide. Therefore, it is necessary to ensure that most activity areas with large personnel flow are well lit to avoid safety hazards caused by insufficient light. There is usually sufficient sunlight during the day, so it is only necessary to supplement the lighting in areas with darker light (natural light illuminance is lower than the first expected illuminance). This can reduce the total energy consumption of the lighting device 1 and meet the lighting needs of users. The value of the first expected illuminance can be 100lx-300lx.

[0042] During non-working hours, such as 19:00-8:00, the natural light is dim, and there are fewer people in the office building, and not many people are active in the public areas. Therefore, targeted lighting can be provided by determining the location of the people in the building. Usually, people in the building will not stay in the public areas for a long time. Therefore, when the light is dim and there are fewer people, it is only necessary to ensure the lighting on their routes and destinations.

[0043] Preferably, the system further includes: a positioning system 5 for obtaining real-time location information of people in the building; a path prediction module 6 for predicting the movement path and destination of people in the building based on the real-time location information and the map in the building; the first control strategy also includes: turning on the lighting device 1 on the predicted movement path and predicted destination of people in the building in advance during non-working hours. This can avoid delays in the process of turning on the lighting device 1, and the lighting device 1 is turned on only when people in the building are close, which can easily cause fear in a dark environment. The path prediction module 6 is a machine model that has been trained in advance. Usually, employees have fixed movement routes in office buildings, including routes to the office and to the toilet. Therefore, it is easy to infer their movement paths and destinations when the identities of people in the building are determined.

[0044] The solution provided in this embodiment can effectively meet the user's requirements for the lighting of the lighting device 1 in the public area in different time periods, and can reduce the energy consumption of the lighting device 1 to varying degrees in both time periods, and realize intelligent and humanized control.

[0045] Example 3

[0046] This embodiment mainly illustrates the lighting control strategy for non-public areas. Taking a representative conference room as an example, a projector is usually installed in the conference room. When a user uses a projector in the office, in order to ensure clear projection, it is usually necessary to maintain a darker light. However, the light cannot be too dark, otherwise it will easily hurt the eyes and cause eye fatigue. In this embodiment, the working mode of each lighting device 1 in the conference room in the viewing state is set to the viewing lighting mode. In order to provide a more humane lighting service, it is also necessary to timely detect the environmental conditions and personnel position status in the conference room in order to quickly respond to user needs. Therefore, the energy-saving control system also includes: a personnel detection device 9, which is arranged in the conference room and is used to detect the number and position of personnel in the conference room; a second illuminance measuring device 7, which is used to measure the illuminance of the conference room; the control device 3 also includes: a second control unit 32, which is used to execute a second control strategy. The second control strategy includes (such as Figure 3As shown): if the number of people in the conference room is zero or the natural light illumination in the conference room is not lower than the second expected illumination, all lighting devices 1 in the conference room are turned off; otherwise (i.e. the number of people in the conference room is not zero and the natural light illumination in the conference room is lower than the second expected illumination), it is determined whether the projector is in an enabled state; if so, the lighting devices 1 in the conference room are controlled according to the movie viewing lighting mode. Specifically, the movie viewing lighting mode is: turn off the lighting devices 1 close to the screen, and adjust the illumination of the area far from the screen to the optimal movie viewing illumination (30lx~100lx, depending on the screen brightness).

[0047] If not (the projector is in the off state), then determine whether the people in the conference room are dispersed according to the positions of the people in the conference room; if so, turn on all the lighting devices 1 in the conference room, and compensate the illumination in the conference room to the second expected illumination by adjusting the power of the lighting device 1; if not, only turn on the lighting device 1 near the gathering place of the people, with the goal of minimizing the total energy consumption of the lighting device 1, and compensate the illumination at the gathering place of the people to the second expected illumination by adjusting the power of the lighting device 1. When the number of people entering the conference room is large and relatively dispersed, it means that the user may hold a large meeting or event in the conference room, so it is necessary to ensure that the illumination in the entire conference room is not lower than the second expected illumination (valued at 300lx~500lx). If the people entering the conference room are concentrated in a certain place, it may be that a few people gather together to hold a small meeting. At this time, for a large conference room, the lighting in the rest of the conference room is "ineffective lighting", so turning off the lighting device 1 away from the gathering place of the people can reduce power consumption and achieve energy saving.

[0048] Exemplarily, the above-mentioned personnel detection device 9 can use a CMOS image sensor and at least three infrared ranging sensors that are not arranged in the same straight line. Among them, the CMOS image sensor has the function of measuring the illumination distribution, so it can replace the second illumination measurement device 7. The CMOS image sensor measures the huge illumination distribution in the conference room. After image acquisition and image processing, it can complete the accurate measurement of the illumination distribution, and at the same time, it can also realize the detection of environmental color temperature, personnel density, and personnel behavior. However, the CMOS image sensor may also have blind spots or occlusions. Therefore, in order to ensure the accuracy of positioning the personnel in the office, at least three infrared ranging sensors that are not in the same straight line can be set in the office, and the specific position of the indoor personnel can be calculated based on the RSSI positioning algorithm.

[0049] For example, if there are n lighting devices 1 near a gathering place, and the n lighting devices 1 have the same specification parameters, and their rated powers are all P R , then the illumination E where people gather A It can be expressed as:

[0050]

[0051] In formula (1), E i represents the illumination generated by the ith lighting device 1 at the gathering place, E N Indicates the natural light intensity in places where people gather;

[0052] The luminous flux Φ of the i-th lighting device 1 at the place where people gather i It can be expressed as:

[0053] Φ i =E i ×S (2)

[0054] In formula (2), S represents the irradiation area where people gather;

[0055] In the optical illumination formula, since there is no power parameter, the relationship between luminous flux and power is established according to the luminous efficiency of the lighting device 1. The greater the luminous flux of the same lighting device 1, the greater the corresponding power (energy consumption). Therefore, the energy consumption of the lighting device 1 is positively correlated with the luminous flux. In order to save lighting energy consumption, the objective function with the minimum total luminous flux of the lighting device 1 as the goal can be set as:

[0056]

[0057] The constraints are: E A ≥e2(4), where e2 represents the second desired illumination;

[0058] The second control strategy also includes:

[0059] Solve the objective function, and obtain the power of the n lighting devices 1 respectively, when the total power consumption of the n lighting devices 1 is the minimum. Exemplarily, a particle swarm algorithm may be used to find the optimal solution.

[0060] In this embodiment, corresponding lighting control strategies are formulated according to the functions of non-public areas (conference rooms, offices, lounges, etc.), which reduces the energy consumption of the lighting device 1 while realizing humanized intelligent control. The working mode of the lighting device 1 is automatically adjusted according to the application scenario, meeting the user's diverse needs for lighting modes and improving the user experience.

[0061] Example 4

[0062] The present embodiment provides a building intelligent auxiliary lighting energy-saving control method, which is applied to the above-mentioned building intelligent auxiliary lighting energy-saving control system, and the method includes: controlling the lighting device 1 in the public area of ​​the building according to the first control strategy; controlling the lighting device 1 in the non-public area of ​​the building according to the second control strategy; when the storage capacity in the power storage device 2 is greater than the preset ratio and the power generation efficiency of the new energy power generation device 8 is greater than the preset value, calling the power storage device 2 to supply power to the lighting device 1, otherwise calling the mains power to supply power to the lighting device 1; the power storage device 2 is used to store the electric energy converted by the new energy power generation device 8, and the new energy power generation device 8 includes a photovoltaic power generation device and a wind power generation device.

[0063] Furthermore, the method further includes: measuring the illumination of the public area; obtaining the real-time location information of the people in the building; the first control strategy (such as Figure 2 The method comprises: during a working period, when the natural light illumination of a preset target area is not lower than a first expected illumination, turning off the lighting device 1 in the target area; when the natural light illumination of the preset target area is lower than the first expected illumination, compensating the illumination of the target area to the first expected illumination by adjusting the power of the lighting device 1 in the target area; during a non-working period, judging whether someone enters the target area according to the real-time position information, and if so, turning on the lighting device 1 in the target area, and adjusting the power of the lighting device 1 so that the illumination of the target area meets the first expected illumination; otherwise, turning off the lighting device 1 in the target area.

[0064] Specifically, the non-public area includes a conference room, and a projector is installed in the conference room; the method further includes: detecting the number and position of people in the conference room; measuring the illumination of the conference room; the second control strategy (such as Figure 3 ) includes: if the number of people in the conference room is zero or the natural light illumination in the conference room is not lower than the second expected illumination, then turning off all lighting devices 1 in the conference room; otherwise, judging whether the projector is in an enabled state; if so, controlling the lighting device 1 in the conference room according to the viewing lighting mode; if not, judging whether the people in the conference room are dispersed according to the positions of the people in the conference room; if so, turning on all lighting devices 1 in the conference room, and by adjusting the power of the lighting device 1, compensating the illumination in the conference room to the second expected illumination; if not, turning on only the lighting device 1 near the gathering place of people, with the goal of minimizing the total energy consumption of the lighting device 1, and by adjusting the power of the lighting device 1, compensating the illumination at the gathering place of people to the second expected illumination.

[0065] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0066] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0067] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0068] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0069] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0070] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0071] Computer readable media include permanent and non-permanent, removable and non-removable media, and can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0072] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0073] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A building intelligent auxiliary lighting energy-saving control system, characterized in that: The system comprises: Certain lighting fixtures; New energy power generation devices, used to convert other forms of energy into electrical energy, including photovoltaic power generation devices and wind power generation devices; An electric storage device for storing electric energy converted by a new energy power generation device; A control device is used to control lighting devices in public areas of a building according to a first control strategy and to control lighting devices in non-public areas of the building according to a second control strategy; when the amount of power stored in the power storage device is greater than a preset ratio and the power generation efficiency of the new energy power generation device is greater than a preset value, the power storage device is used to supply power to the lighting device; otherwise, the mains power is used to supply power to the lighting device.

2. The intelligent building auxiliary lighting energy-saving control system according to claim 1 is characterized in that: The public area includes stairs, corridors or public toilets; the system also includes: A first illuminance measuring device, used to measure the illuminance of a public area; The control device also includes: A first control unit is configured to execute a first control strategy, wherein the first control strategy includes: During the working time period, when the natural light illumination of the preset target area is not lower than the first expected illumination, the lighting device in the target area is turned off; when the natural light illumination of the preset target area is lower than the first expected illumination, the illumination of the target area is compensated to the first expected illumination by adjusting the power of the lighting device in the target area.

3. The intelligent building auxiliary lighting energy-saving control system according to claim 2 is characterized in that: The system further comprises: Positioning system, used to obtain real-time location information of people in the building; The first control strategy also includes: During non-working hours, determine whether someone has entered the target area based on the real-time location information. If so, turn on the lighting device in the target area, and adjust the power of the lighting device so that the illumination of the target area meets the first expected illumination; otherwise, turn off the lighting device in the target area.

4. The intelligent building auxiliary lighting energy-saving control system according to claim 2 is characterized in that: The system further comprises: Positioning system, used to obtain real-time location information of people in the building; The path prediction module is used to predict the movement path and destination of people in the building based on real-time location information and the building map; The first control strategy also includes: During non-working hours, turn on the lighting devices on the predicted movement paths and predicted destinations of people in the building in advance.

5. The intelligent building auxiliary lighting energy-saving control system according to claim 1 is characterized in that: The non-public area includes a conference room, and a projector is provided in the conference room; the system also includes: A personnel detection device is arranged in the conference room and is used to detect the number and position of personnel in the conference room; The second illuminance measuring device is used to measure the illuminance of the conference room; The control device also includes: A second control unit is configured to execute a second control strategy, wherein the second control strategy includes: If the number of people in the conference room is zero or the natural light illumination in the conference room is not lower than the second expected illumination, turn off all lighting devices in the conference room; Otherwise, determine whether the projector is in an enabled state; if so, control the lighting device in the conference room according to the viewing lighting mode; If not, determine whether the people in the conference room are dispersed based on the locations of each person in the conference room; if so, turn on all lighting devices in the conference room, and compensate the illumination in the conference room to the second expected illumination by adjusting the power of the lighting devices; if not, only turn on the lighting devices near the places where people gather, with the goal of minimizing the total energy consumption of the lighting devices, and compensate the illumination at the places where people gather to the second expected illumination by adjusting the power of the lighting devices.

6. The intelligent building auxiliary lighting energy-saving control system according to claim 5 is characterized in that: If there are n lighting devices near a gathering place, and the n lighting devices have the same specifications and parameters, their rated power is P R , then the illumination E where people gather A It can be expressed as: In formula (1), E i represents the illumination generated by the ith lighting device at the gathering place, E N Indicates the natural light intensity in places where people gather; The luminous flux Φ of the i-th lighting device at the gathering place of people i It can be expressed as: F i =E i ×S (2) In formula (2), S represents the irradiation area where people gather; Since the energy consumption of the lighting device is positively correlated with the luminous flux, the objective function is set with the minimum total luminous flux of the lighting device as the goal: The constraints are: E A ≥e2(4), where e2 represents the second desired illumination; The second control strategy also includes: Solve the objective function and obtain the power of n lighting devices respectively.

7. The intelligent building auxiliary lighting energy-saving control system according to claim 5 is characterized in that: The personnel detection device comprises a CMOS image sensor and at least three infrared distance measuring sensors which are not arranged on the same straight line.

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