TWI511057B - Energy output control system and method for the same - Google Patents

Description

Energy output control system and method

The invention relates to an energy output control system and method, in particular to a technology for dynamically adjusting energy output of a specific occasion according to human flow information.

One of the conventional power-saving technologies used in various occasions can refer to the public room indoor lighting energy-saving control system disclosed in the Republic of China Patent No. M351380 (Announcement Date: 2009/02/21), in which the technology judges personnel in relevant occasions. When it appears, it is determined that the location of the person is located and the lighting device is activated. Conversely, when the person leaves, the lighting is turned off, thereby achieving the purpose of power saving.

In the conventional counting of personnel counts, there have been many techniques for counting the flow of people entering and exiting a specific occasion. For example, when a department store or a store needs to know the number of people entering and leaving, a flow counter can be set at the door, such as utilization.

The conventional technology, such as the method of counting the inflow and outflow of a gate disclosed in the Republic of China Patent No. I307059 (Announcement Date: 2009/03/01), the method disclosed in the present invention is a technique for judging a camera by using image processing technology. According to the description of the case, the camera is set up at the entrance and exit, and the distribution of the moving pattern of the person is obtained, compared with the area of the reference model established in advance, thereby estimating the number of people, and then moving the figure. "Color Analysis Induction" yields a color vector representing a moving pattern as a pattern recognition reference for the tracking person to move.

In addition, the image type of entrance and exit flow counting method disclosed in the Republic of China Patent Publication No. 201129932 (Publication Date: 2011/09/01), which also uses the camera to capture images, through computer vision image processing To achieve the purpose of counting the flow of entrances and exits, and then provide image correction technology to accurately calculate the number of entrances.

Different from the conventional techniques for using light interception or image processing to judge moving objects or people entering and leaving a specific place, the present invention particularly utilizes height detection technology to obtain a height map of a specific position and determine a specific object therein, such as In the application described in the embodiments disclosed in the disclosure, the energy output control system and method of the present invention controls the output energy of various power load terminals after analyzing the flow according to the number of people obtained in one or more specific ranges. .

According to the disclosed embodiment, the disclosed energy output control system includes a counting acquisition unit implemented by hardware or software to receive one or more count values, and a human flow analysis unit receives the data according to the counting acquisition unit. The one or more count values are numerically analyzed, and then a power control unit is configured to generate a control signal for controlling the energy output based on the numerical analysis result, so that the energy output control system controls the power load terminal to adjust the output energy through the power control unit.

According to an embodiment, the energy output control system is connected to the counting devices provided at a plurality of locations through the connection, so that the system can obtain the number of objects detected by the plurality of locations, especially the number of people, and the energy output control system will be based on the flow analysis unit therein. The numerical analysis results determine the output energy of each power load terminal.

According to one of the objects of the invention, the energy output control system can obtain the number of people at one time point by the counting means provided at a specific position, and thus can control the output power of the various power load terminals in the position. For example, if If the number of people is below a certain threshold, the energy output will be reduced, including increasing the temperature of the air conditioner, changing the heat dissipation of the fan, turning off part of the lighting, or reducing the brightness, so as to save power according to the flow analysis.

The energy output control system of the invention can simultaneously obtain the human values of a plurality of positions at the same time, and adopt different power saving measures for different positions.

According to an embodiment, the power control unit in the system may generate a power control signal according to the result of the numerical analysis according to an energy output strategy. The energy output strategy includes the ratio of the number of people in a plurality of different locations to the energy output of one or more of the power load terminals in each location, so the system can set a corresponding energy output ratio according to the number of people.

In addition, the power control unit can further determine the distribution ratio of the energy outputs of the one or more power load terminals according to a total load and a numerical analysis result.

According to the energy output control method contained in the disclosure, the embodiment includes first obtaining a height distribution of a position, determining a person in the position according to the height distribution, and calculating the number of persons, and then the counting device for obtaining the position by the energy output control system The generated human value is used to control the output energy of one or more electrical load terminals within the location based on the human value.

In one embodiment, the method for obtaining the number of people by using the height distribution generated by the counting device uses a depth of field detector to obtain the height distribution of the position for a period of time, and then can determine the relative height and the contour density according to the height distribution. The number of people.

The way to obtain a high degree of distribution includes that the depth of field detector sends a detection signal to the detection range in which the position is located, and obtains the height distribution of the position through the received reflection signal.

Or, the depth of field detector includes at least two shots taken at different angles. The machine obtains the depth information by taking the image difference of the object in the position from top to bottom at the same time, and then obtains the height distribution of the position.

According to the embodiment of the present disclosure, there is provided an energy output control system and method according to the present invention, the main concept of which is capable of controlling the output energy in the relevant range according to the count value of a counting device within a detection range. . According to one embodiment, the human flow information obtained by the energy output control is determined by using a height profile obtained by detecting the depth information of the range, and in actual application, the object can be set according to the requirements in the detection range. It does not exclude the detection of people, animals, vehicles, or specific items.

1A shows one of the schematic diagrams of an embodiment of an object counting mode employed by the energy output control system of the present invention.

According to the illustrated embodiment, the human body is taken as an example. The depth of field detector 10 is disposed on the ceiling. The depth of field detector 10 emits electromagnetic waves from top to bottom within a detection range (such as a transmitted wave). 102), various facilities, articles, human 101, 103 and other physical objects will reflect this electromagnetic wave (especially for invisible light, such as infrared light, radio waves), and the receiving device in the depth of field detector 10 receives reflected electromagnetic waves because of this detection The measurement range should have background information formed by the ground and the original facilities. Therefore, it is possible to calculate the object of the foreground (earlier reflection time) based on the time difference between the transmitted wave 102 and the relative reflected wave, and determine the depth information of each position. In turn, the height distribution within this detection range is obtained.

The invention can therefore determine whether there is a specific object according to the height distribution within the range, and if the object to be judged is a person, the depth of field can be set accordingly. The threshold is judged. In the case of a person, you can set the height of the threshold (such as 100 cm to 200 cm) and the area occupied by the person (such as the diameter of the circle in a plan view of 50-70 cm). There are one or more people (101, 103).

FIG. 1B is a second schematic diagram showing an embodiment of an object counting mode employed by the energy output control system of the present invention.

In this example, the depth of field detector 10 is also disposed above a detection range, and the cameras 11, 12 respectively capture the detection range in different directions and angles. Similarly, the detection range includes the background formed by the original ground or the facility. The images taken by the cameras 11 and 12 from different angles can exclude the original background objects, and the different objects have different aperture values, so that the captured objects will have Different degrees of blurring, so you can judge the depth of field accordingly. After excluding the above background information, the foreground object can be judged smoothly according to the height distribution formed by the depth information, such as the person 101', 103', but the actual implementation does not exclude other objects, such as animals, vehicles, etc., the system can be based on Set the threshold for the object to be detected, such as the height of the object, the area occupied, and other parameters.

Figure 2 shows a schematic representation of the height profile used in the system of the present invention. The contour line drawn according to the depth information in the height detection range 20 is displayed, and the resolution of the contour line provided by the counting system is designed according to requirements. Each contour line represents a height value or a height range, and each height line represents a height value or a height range. A height difference can be obtained between a high line, so it can be judged according to the density of the contour line whether a specific object exists.

In this example, there are two concentrated areas 201, 203 with dense contour lines. According to the depth information, the height and the occupied area of the two concentrated areas 201, 203 can be calculated, so that it is determined according to the threshold. Animals, vehicles or other objects.

For example, in the case of an adult, the height detector is located above. After the calculation of the depth of field, simply speaking, the height of the person's head is 170 cm and the height of the shoulder is about 140 cm. This height difference If it is formed within a range of about 60 cm in diameter, it can be judged as an adult.

According to the foregoing embodiment, the present invention can use the information of the depth of field to judge the existence of the object, and can further judge the movement of the object according to the height distribution change of the front and rear time, and can further calculate the number of passing through the specific entrance and exit or the specific range.

It is worth mentioning that the method of image recognition needs to perform calculus according to each pixel, and requires powerful data processing capability. However, the object counting method used in the embodiments of the present invention does not use image recognition to determine the flow of people. The technology only judges the flow of people according to the depth of field and height distribution within a specific detection range. The data to be processed is only a general numerical analysis, so the system processing power is not as powerful as the conventional technology; in other words, Under the same processing capability, the counting technology adopted by the invention can cope with a large number of object judgments and counts, and can be used for large-scale occasions.

According to one of the objects of the present invention, one or more counting devices can be provided in one occasion, such as dividing a place (such as a store, a store, a public place) into a plurality of blocks, somewhere in each block (such as an entrance and exit) The top of the center is provided with a counting device, which can be connected to the energy output control system disclosed in the disclosure, or can be obtained through a relay device (such as the counting calculation center 70 shown in FIG. 7). The count value of the counting device is then passed to the energy output control system.

The energy output control system electrically connects various electrical devices installed in various places through the circuit therein, such as lighting, air conditioning, and advertising billboards. The power consumption control system can generate corresponding control signals according to the flow information of each position, thereby controlling the power output of various power devices.

Embodiments such as the counting device shown in Fig. 3 are used in a large-scale situation for a plurality of people.

There is shown a depth of field detector 30, which can capture images within the detection range 32, analyze the height distribution within the range 32 through the image, or determine the depth of field according to the electromagnetic wave reflection time of various objects in the detection range 32, thereby forming The height distribution of the detection range 32 at a certain time, and the relative height and the contour density determine the number of specific objects, the movement, and the number of the detection range 32.

In this example, the depth of field detector 30 is disposed above a detection range 32, and is not only located at a specific entrance or exit, so that the number of people of different heights can be directly obtained according to the height distribution, even for each moving person. Tracking and determining if the range 32 has been removed, or if someone has entered the detection range 32.

According to the embodiment of the disclosure, the energy output control system 3 of the present invention can be electrically connected to the depth of field detector 30 contained in the figure, and simultaneously connected to various types of load terminals 301 (such as lighting) in the place. 302 (such as air conditioning), 303 (such as Kanban). The energy output control system 3 can receive the height information at each point within the detection range 32 obtained by the depth of field detector 30 in a time, and thus can further form a height distribution over the entire range, and can then be distributed according to the height. Information to determine which objects (will move better, such as people). The height distribution formed over a period of time may be processed by circuitry within depth of field detector 30 or by circuitry or software within the energy output control system 3 of the present invention.

Through the number of people in the height distribution calculation or the number of specific objects, the energy output control system 3 can control the power output of each of the load terminals 301, 302, 303 according to a specific energy output strategy.

For example, if the number of people in this situation is below a threshold, the energy output can be adjusted according to the properties of the power equipment, such as turning off the lighting, adjusting the brightness, increasing the temperature of the air conditioner, or changing to another type of cold room (such as a fan). Turn off kanban lighting or reduce brightness; otherwise, if the number is higher than the threshold, you will need to determine the lighting level, the output of the air conditioner, or any lighting that needs to be turned on. The number of people can be divided into multiple levels, so different power saving measures can be distinguished according to the level to improve the power efficiency.

For an implementation of the energy output control system of the present invention, reference may be made to the circuit block diagram shown in FIG.

The figure shows an energy output control system 4, according to the provided functions, wherein the main functional units implemented by circuit or software are power control unit 413, human flow analysis unit 415 and count acquisition unit 417, and the signals generated by each unit can be data. Processing unit 411 or associated control circuit processing.

The count acquisition unit 417 is an interface in which the energy output control system 4 is connected to each end counting device, whereby the count value generated from one or more counting devices can be received.

The flow analysis unit 415 can obtain the count value obtained by the count acquisition unit 417, and can also implement numerical analysis of the human flow by circuit or software, and one of the purposes is to perform numerical analysis on the received one or more count values to obtain The distribution of people in different locations in the same place or in different places, so the energy output of each position can be determined according to the distribution of people flow.

The power control unit 413 then obtains the flow information of each location by the human flow analysis unit 415, and the power control unit 413 is the energy output control system 4. Electrically connecting the interface of each load terminal and the control circuit of the energy output, corresponding measures are generated according to the flow distribution of the person, including allocating the energy output of each position according to a total amount; or determining the output power according to a specific energy output strategy, for example The number of people and energy have a certain ratio or threshold limit, so as to achieve better power efficiency.

In this example, the energy output control system 4 is connected to various power load terminals 401 disposed in the area 40. One or more counting devices 402 are correspondingly disposed in the area 40. Therefore, the energy output control system 4 can obtain the area 40 from the counting device 402. The flow information is instantaneous or for a certain period of time, and then the power control signal is output to each of the power load terminals 401. When the system performs numerical analysis according to the count value generated by each counting device 402, the result of the analysis generates a control signal for controlling the energy output, and the control signal can carry power control information according to different terminal devices, so that the energy output control system 4 controls the power. The load terminal 401 adjusts the output energy according to the control signal.

The foregoing area 40 can be provided with a plurality of counting devices 402. The system 4 obtains the counting value through the network, the power line or various communication methods, can obtain the counting value at a time, and instantly and dynamically adjust the energy output of each power load terminal 401 according to the flow analysis. Level, the so-called energy output level can be divided into multiple levels according to the number of people, so different power saving measures can be distinguished according to the level to improve the power efficiency. For example, the design has a variety of people, different range of people have different energy output levels, each level compares the power output of various power load terminals (power equipment) in the relevant area, including the start and shutdown of various power equipment, including power Adjustment, time for continuous output of specific power, measures for power modulation according to time, etc.

A functional block diagram of an embodiment of the energy output control system of the present invention, along with counting techniques, can be seen in Figure 5A.

The embodiment of the figure has three parts, including a depth of field detector 50 disposed at each position, and a counting calculation center 54 connectable to the plurality of depth detectors 50, which can be connected by a specific connecting means, including The network, the cable, the radio wave, and the like, and then the counting calculation center 54 is connected to the energy output control system 5 by a connection means. The counting calculation center 54 can obtain the height information 51 generated by the depth of field detector 50 through the connection, and the counting calculation center 54 performs the operation according to the time synchronization of the time to obtain the height distribution of the range detected by the detector 50, and according to the The number of objects judged by the information.

The depth of field detector 50 is configured to obtain a depth of field information of a detection range at a time. In this example, the depth of field information may be obtained by electromagnetic waves, including a transmitting unit 501 that transmits a detection signal, and a reflection signal. The receiving unit 502, the reflected signal may reflect various objects within the detection range, including the initially set background and other objects that enter the detection range.

Another height calculation unit 503 is electrically connected to the transmitting unit 501 and the receiving unit 502, and obtains the transmitted detection signal and the reflected signal, and can calculate the time difference between the two, and compares with the original background signal, thereby obtaining the detection range. The depth information of each position in the position is formed by the depth of field of the entire detection range to form a height distribution map of the detection range at a specific time.

After the depth of field detector 50 obtains the height distribution over a period of time, the height calculation 51 is obtained by the counting calculation center 54, and the counting calculation center 54 can determine the objects therein and count them. In this example, the height calculation unit 541 implemented by the software module or the circuit is provided in the counting calculation center 54 to form a height distribution map within a range according to the height information 51, wherein the relevant time information can be Counting calculation center The synchronization is generated by the height distribution forming unit 541 to recognize the height signal for a certain time. Therefore, the height distribution forming unit 541 can generate the height distributions at different times after continuously receiving the signal from the depth of field detector 50. .

Next, the object calculation unit 542 implemented by the software or hardware circuit is provided in the count calculation center 54, and the existence of the foreign object can be determined after the background is excluded based on the contour distribution in the height profile. For example, an area with a high density of contour lines can determine whether an object exists according to the height characteristics of the object to be judged. It is also possible to determine that there is a moving object based on the height distribution change at different times before and after, and then confirm that it is a foreign object.

Then, the counting unit 544 implemented by the software or hardware in the counting calculation center 54 counts, and one of the main purposes is to calculate the number of objects in the detection range, the number of objects entering or leaving a specific occasion or region, and particularly the number of people. Then, the value is transmitted to the energy output control system 5, and the energy output control system 5 analyzes the count value obtained by the counting calculation center 54 to determine the flow information of each position, and one of the objects of the present invention is based on this. The flow of people information controls the energy output of each location, especially the power of various terminal facilities.

Another embodiment is shown in FIG. 5B, in which the counting system embodiment shown is a technique for obtaining depth information by using two or more cameras to capture image differences through the same time.

In this example, the depth of field detector 50' is a detector that generates depth of field information by using the degree of blurring of the captured image, and may include a first camera 505 and a second camera 506 that capture the same area but different shooting angles, and then have a height. The computing unit 503 is electrically connected to the two cameras 505, 506, and obtains the image information of the same position captured at different angles to determine the depth of field of each point of the detection range.

The technique of judging the depth of field by using two or more cameras to capture the same position. The technique used is to obtain depth information based on the principle of stereo vision, especially if two cameras are used to obtain an image by left and right. (frame), the depth of field information is obtained by using the disparity and triangulation of the position difference of the captured image of the object, and the depth information of a plurality of points in a detection range can be depicted to form a height profile. Another method can also capture objects in the detection range through different cameras (different aperture values). The images captured by the two cameras will have different degrees of blurring, so the depth of field can be judged accordingly.

The height information 51 generated by the depth finder 50' shown in Fig. 5B is transmitted to the counting calculation center 54 to perform the calculation of the height distribution and the judgment of the object. The count value is then passed to the energy output control system 5 via a particular connection means, and the energy output control system 5 is provided as a basis for determining the power configuration.

In the derivative embodiment, the counting calculation center may simultaneously connect a plurality of depth detectors disposed in different regions, and the plurality of depth detectors respectively provide the depth information detected in the respective regions at a time, and According to a height profile for forming the time, an embodiment can be seen in FIG.

Referring first to FIG. 7, this example shows an energy output control system 7 connected to a counting calculation center 70 for the purpose of counting the counting values generated by the depth of field detectors 701, 702, 703 set at different positions by the counting center 70. The computing center 70 and each of the end depth detectors 701, 702, 703 are connected by network, cable or radio to obtain the height information transmitted by each depth detector 701, 702, 703, and can determine the depth of field detection within a certain time. The number of objects, such as the number of people, detected by the range of 701, 702, 703.

It is worth mentioning that under this architecture, most of the computing resources are concentrated in the counting calculation center 70, including time synchronization, so the circuit design, workload and power consumption of each end depth detector 701, 702, 703 are compared. Lightweight.

In practical applications, if the depth of field detectors 701, 702, 703 of this example are located in different areas of a shopping mall, if there are a large number of specific areas, when the energy output control system 7 of the present invention obtains the count value of the non-receiving area, it will be By controlling the output energy of each area, it is possible to adjust the power output according to the number of people, and at the same time achieve the purpose of saving power and increasing power efficiency.

According to the various embodiments described above, the control method applied to the energy output control system can be referred to the control flow shown in FIGS. 6 and 8.

First, in Figure 6, the energy output control system obtains information on the number of people using the depth of field information to control the power. The method of obtaining the person's ground includes the depth of field determined by shooting images from different cameras, or obtaining specific by electromagnetic wave detection. The depth of field information of the range, in step S601, after obtaining the depth information, forming a height distribution. In step S603, the background is excluded (aligned with the foreground) to determine the possible object, such as from one or more height distributions. The contour line density determines whether one or more objects are counted. Then, the movement of the suspected object is determined by the change of the height distribution of the previous time, and the object can be confirmed as the moving object, and the object can be tracked and the state of the entry and exit can be determined (step S605), including the object within the specific range. Counting is performed (step S607).

According to one of the objects of the present invention, a specific range of count values is obtained in the foregoing manner to serve as a basis for energy output control of various power facilities in the range. In step S609, the foregoing count value is transmitted to the energy output control system in the transmission area. The flow distribution of the person produces a power control signal for the area.

The foregoing steps of FIG. 6 are more applicable to the power configuration embodiment architecture in the case of multiple regions as shown in FIG. 7, and the energy output control system can simultaneously perform control on the power facilities of the plurality of regions.

Figure 8 next shows the flow of the present invention.

In step S801, the system of the present invention can obtain the counting information according to the depth information, and obtain the information of the depth detectors located at different positions. When the height distribution of one or more positions is obtained, the height distribution is determined according to the height distribution. Out people in one or more locations and count the number of people in each location. The system is primarily capable of controlling the energy output based on these data.

According to the embodiment, in step S803, the system can design one or more threshold ranges according to the actual requirements of the set occasion, and the obtained flow information can be matched with the design of the threshold to the energy output, thereby establishing an energy output strategy (80). ). In step S805, the energy output stage is determined according to the energy output strategy (80), that is, the control signal can be generated according to the human value (step S807), and the output energy of the one or more power load terminals in the one or more positions is controlled.

The foregoing energy output strategy (80) mainly includes setting one or more thresholds to compare various energy saving modes. For example, the energy output strategy (80) may include a plurality of people in different locations and energy of one or more power load terminals in each location. Output ratio; the power control circuit in the system can determine the distribution ratio of the energy output of one or more power load terminals according to a total load and a numerical analysis result according to the energy output strategy (80).

For example, if the number of people is above a certain threshold, the power facilities in the relevant regional locations should be fully powered; if the number falls within the threshold, the power output of the electrical facilities in the relevant regional locations can be adjusted, including adjusting the air conditioning. Temperature, lighting shading control, turning off unnecessary power, Such as advertising billboards; if the number is below a threshold, indicating that there are not many people in the relevant areas, the implementation includes the closure of some lighting and kanban power, air conditioning can be phased off and other measures. The description herein is merely an example, and the actual implementation of the energy output strategy (80) can be designed according to the needs of the relevant occasion.

In summary, the present invention discloses an energy output control system and method. The main count is to determine the flow information by using the height distribution at a specific position within a certain time, and the system controls various kinds according to the flow information according to the energy output strategy. The energy output of the power plant can therefore provide a higher power efficiency in the case where the system is set up.

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent structural changes that are made by using the specification and the contents of the present invention are equally included in the present invention. Within the scope, it is combined with Chen Ming.

10‧‧‧Depth of Field Detector

102‧‧‧transmitted waves

101,103,101’,103’‧‧‧ people

11,12‧‧‧ camera

20‧‧‧High detection range

201, 203 ‧ ‧ concentrated area

30‧‧‧Depth of Field Detector

32‧‧‧Detection range

3‧‧‧Energy Output Control System

301,302,303‧‧‧ load terminal

4‧‧‧Energy Output Control System

411‧‧‧Data Processing Unit

413‧‧‧Power Control Unit

415‧‧‧ Personnel Analysis Unit

417‧‧‧Counter acquisition unit

40‧‧‧Area

401‧‧‧Electric load terminal

402‧‧‧counting device

50‧‧‧Depth of Field Detector

501‧‧‧ Launching unit

502‧‧‧ receiving unit

503‧‧‧ Height calculation unit

51‧‧‧High information

54‧‧‧Counting Calculation Center

541‧‧‧Highly distributed forming unit

542‧‧‧Object Judgment Unit

5‧‧‧Energy Output Control System

544‧‧‧counting unit

50'‧‧‧ Depth of Field Detector

505‧‧‧First camera

506‧‧‧Second camera

70‧‧‧Counting Calculation Center

701,702,703‧‧‧Depth of Field Detector

7‧‧‧Energy Output Control System

80‧‧‧Energy output strategy

Step S601~S609‧‧‧One of the energy output control processes

Step S801~S807‧‧‧ Energy Output Control Process 2

1A is a schematic diagram showing an embodiment of an object counting mode adopted by the energy output control system of the present invention; FIG. 1B is a second schematic view showing an embodiment of an object counting mode adopted by the energy output control system of the present invention; FIG. 3 is a block diagram showing an embodiment of an energy output control system of the present invention; FIG. 4 is a block diagram showing an embodiment of an energy output control system of the present invention; FIG. System with counting technology FIG. 5B is a functional block diagram of an embodiment of the energy output control system of the present invention together with the counting technique; FIG. 6 shows one of the energy output control flowcharts of the present invention; FIG. 7 shows the present invention. A schematic diagram of an embodiment of an energy output control system along with a counting system; FIG. 8 shows a second flow chart of the energy output control of the present invention.

S801‧‧‧Get count information

S803‧‧‧ comparison threshold

S805‧‧‧Determination of energy output stages

S807‧‧‧ generates control signals

Claims (8)

An energy output control system includes: a count acquisition unit that receives a plurality of count values, wherein the plurality of count values are respectively obtained by a plurality of counting devices provided at different positions; and the plurality of pens received according to the count obtaining unit a one-person flow analysis unit for numerically analyzing a value; a power control unit that generates a control signal for controlling energy output according to the result of the numerical analysis, wherein the energy output control system connects the plurality of power load terminals through the power control unit, and each power load terminal is The control signal adjusts the output energy; wherein the energy output control system determines the output energy level of each power load terminal according to the numerical analysis result of the human flow analysis unit, and then determines, according to the total amount of the load and the numerical analysis result, the power control unit The ratio of the energy output of the plurality of electrical load terminals. The energy output control system of claim 1, wherein the power control unit generates the control signal according to a numerical analysis result according to an energy output strategy to determine the output energy level. The energy output control system of claim 2, wherein the output energy level corresponds to different energy output levels according to different range of persons designed; each level compares various powers in a position set by the counting device The power output of the load terminal includes startup and shutdown of various power load terminals, power adjustment, time for continuous output of specific power, and power modulation according to time. The energy output control system of claim 2, wherein the energy output strategy includes the number of people in the plurality of different locations and is set to The energy output ratio of the plurality of electrical load terminals at different locations. An energy output control method includes: obtaining a height distribution of a plurality of locations; determining a person in the plurality of locations according to a height distribution of the plurality of locations, and calculating a number of persons in the plurality of locations; obtaining a location set by each location a person value generated by the counting device; controlling an output energy level of one or more power load terminals in each position according to the person value of each position; and determining the plurality of positions according to a total amount of the load and a person value of the plurality of positions The ratio of the energy output of the plurality of power load terminals. The energy output control method according to claim 5, wherein the method for obtaining the number of people by using the height distribution comprises: obtaining a height distribution of the position over a period of time by using a depth of field detector; and determining a relative height according to the height distribution; Determine the number of people with the contour density. The energy output control method according to claim 6, wherein the depth of field detector sends a detection signal to the detection range where the position is located, and obtains a height distribution of the position through the received reflection signal. The energy output control method according to claim 6, wherein the depth of field detector comprises at least two cameras that capture different angles, and the depth of field information is obtained by capturing image differences of objects in the position from top to bottom at the same time. And further obtain the height distribution of the position.