KR101244940B1 - method and apparatus for measuring activity state of moving object and device control system using them - Google Patents

Abstract

A plurality of weight sensors are used to detect moving objects located in the measurement area, and measure the amount of activity for the detected moving objects. In particular, a plurality of filtering processes including first and second extraction and grouping processes are performed on signals detected by the weight sensor to obtain weight sensors that detect the moving object substantially, and based on the obtained weight sensors. Detect. The amount of activity of the detected moving objects is measured based on the signals of the obtained weight sensors. The measured amount of activity of the moving object can be used as basic data for controlling the operation of the electrical devices located in the measurement area.

Description

Method and apparatus for measuring activity state of moving object and device control system using them

The present invention relates to a method for measuring an activity state, and more particularly, to a method and apparatus for detecting an activity state of a moving object and a device thereof, and a system for controlling the operation of a predetermined device using the same. .

The weight sensor is a sensor for detecting an applied pressure and is used in various fields. As a technique using a weight sensor, a plurality of weight sensors are installed on the bottom surface of entrance and exit doors of a predetermined area, and there is a method of measuring the number of people entering and leaving the area. In addition to the weight sensor, there is a technique of counting the number of people entering and leaving a predetermined area using an RF terminal. In addition, there is a technique of counting people entering and leaving using an image processor, but in this case, the image processing is performed without permission of the people, which may cause controversy such as infringement of meandering activity. In addition, there is a technology that detects the entrance and exit of people by using an infrared sensor, which is difficult to accurately measure the number of people due to the high probability of error when the entrance is wide, and if there are multiple entrances, sensors must be installed for each entrance. If the doorway is changed, there is a need to change the sensor installation layout again.

On the other hand, it is possible to perform a predetermined control including controlling the electric devices installed in the area based on the number of people entering and leaving the area, it is difficult to efficiently control the area only by the number of people entering and leaving the area. Some technologies use sensor networks to perform statistical analysis, including head count, propensity analysis, and route analysis for people entering and exiting a given location, but these technologies use sensors that detect people's body temperature. Alone cannot effectively detect people's activity.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method and apparatus for detecting a moving object using a weight sensor and effectively measuring the activity state of the detected moving object.

It is also an object of the present invention to provide a system for efficiently controlling the operation of a given device using this method.

An apparatus for measuring the activity state of a moving object according to a feature of the present invention for the above problem, is a device for detecting the moving object in the measurement area and measuring the activity state, which is installed in the measurement area, the weight according to the applied pressure A plurality of weight sensors for outputting a signal; A moving object detecting unit detecting a moving object located in the measurement area based on the weight signals output from the plurality of weight sensors and the position coordinates of the weight sensors; And an activity amount measuring unit configured to measure the amount of activity of the detected moving body based on a change amount of the weight signals output from the plurality of weight sensors during a preset time.

In addition, the method for measuring the activity state of the moving object according to another aspect of the present invention, the moving object is detected and moved by using a device using a plurality of weight sensors installed in the measurement area, and outputs a weight signal according to the applied pressure A method for measuring the activity state of the, based on the weight signal output from the plurality of weight sensors and the position coordinates of the weight sensors, the initial measurement data set corresponding to the position coordinates of each weight signal and the corresponding weight sensor Generating; Performing first extraction from the initial measurement data set to select weight sensors whose weight signals are located in a preset range; The change amount of the weight signal output for a predetermined time with respect to the weight sensors selected by the first extraction is measured, and among the selected weight sensors, weight sensors having a measured change amount larger than a predetermined set amount are selected and extracted data. Performing a second extraction to generate a set; For each weight sensor included in the extracted data set, a grouping set including at least one group consisting of at least two weight sensors is performed by grouping position coordinates located within a predetermined distance to form a group. Generating a grouping step; And detecting a moving object located in the measurement area based on the grouping set.

Device control system according to another aspect of the present invention is a device control system for controlling the operation of a plurality of electrical devices, detecting the moving object using a plurality of weight sensors for each measurement area, according to the signal output from the weight sensor A data acquisition unit that receives data including an activity amount of the moving object for each measurement area from a measuring device that measures the activity state of the moving object based on the measured weight change of the moving object; A first operation controller configured to operate or stop the respective electric devices based on the obtained data; And a second operation controller configured to control an operation amount of each electric device based on the obtained data.

Here, the data provided from the measuring device includes an amount of activity based on the weight change amount of the moving object for each measurement area, and the moving distance of the moving object based on the number of moving objects detected, the position change amount of the center point of the moving object, and the moving direction. It may further include at least one of. The plurality of electrical devices may be one of an air conditioning device and a lighting device.

According to an embodiment of the present invention, the number of people located in a predetermined area can be accurately measured, and in addition, the activity state including the amount of activity of the person can be measured more effectively. In particular, by detecting the moving object using the weight sensors provided in the measurement area, even if the layout of the entrance and the like installed in the measurement area is changed, the moving object can be effectively detected without being affected.

In addition, it is possible to efficiently control the electric devices located in the area based on the activity state indicating the number of moving objects and the amount of activity located in the particular area. In particular, by adjusting the operation state and the operation amount of the device (cooling, heating, lighting, humidity, etc.) for supplying energy to a predetermined region, it is possible to supply energy in consideration of the movement trajectory or the actual position of the person.

1 is a structural diagram of an apparatus for measuring the activity state of a moving body according to an embodiment of the present invention.
2 is a structural diagram of a moving object detecting unit according to an embodiment of the present invention.
3 to 5 are exemplary views illustrating a filtering process for detecting a moving object according to an embodiment of the present invention.
6 is an exemplary view showing a result obtained by performing a filtering process a plurality of times according to an embodiment of the present invention.
7 is an exemplary view illustrating measuring an activity amount for a group detected by a moving object according to an exemplary embodiment of the present invention.
8 is a flowchart illustrating a method for measuring the activity state of a moving object according to an embodiment of the present invention.
9 is a diagram illustrating a structure of a device control system using an activity state measuring device of a moving object according to an embodiment of the present invention.
10 is an exemplary view illustrating operating the air conditioner and the lighting device based on the activity state of the moving object according to the embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. In the following detailed description of the preferred embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In the drawings, like reference numerals are used throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to "include" an element means that it may include other elements, rather than excluding other elements, unless specifically stated otherwise.

Hereinafter, a method and apparatus for measuring an activity state of a moving object according to an embodiment of the present invention with reference to the drawings, and a device control system using the same will be described.

1 is a diagram illustrating a structure of an apparatus for measuring activity state of a moving body according to an exemplary embodiment of the present invention.

As shown in FIG. 1, the activity state measuring apparatus 1 (hereinafter, also referred to as a “measuring device” for convenience of description) of a moving object according to an exemplary embodiment of the present invention includes a plurality of weight sensors 11 and a signal processor 12. , A moving object detecting unit 13, a moving object counting unit 14, and an activity amount measuring unit 15, and a moving state measuring unit 16.

The plurality of weight sensors 11 output a signal corresponding to the pressure applied to the predetermined region. The weight sensors according to the embodiment of the present invention may be installed through various methods, such as being installed at predetermined intervals in a predetermined area or at specific locations satisfying a setting condition. Here, an example will be described in which the weight sensors are installed in the form of being embedded in the bottom surface of the predetermined region. For convenience of description, the area where the weight sensors are installed is called a "measurement area".

The signal processor 12 processes and outputs signals output from the respective weight sensors in a state in which the measuring apparatus according to the exemplary embodiment of the present invention can recognize them. Methods for processing signals from such weight sensors may employ techniques known in the art, and thus detailed descriptions thereof are omitted herein.

The moving object detector 13 detects the moving object based on the signals of the respective weight sensors output from the signal processor 12. 2 is a diagram showing the structure of a moving object detecting unit 13 according to an embodiment of the present invention. As shown in FIG. 2, the moving object detector 13 includes a first extraction module 131, a second extraction module 132, a grouping module 133, and a detection module 134.

In this case, the object to which the pressure is applied by the weight sensor has a weight, so for convenience of explanation, it will be referred to as "weight" below. For example, weights include people, furniture, partitions, electrical devices, and the like. In an embodiment of the present invention, the coordinates of the position where the weight sensor is installed are previously stored in the measuring device 1, and it is possible to detect whether there is a weight body at the position based on a signal output from the weight sensor corresponding to each coordinate.

Corresponding to the position coordinates of each weight sensor, that is, the magnitude of the signal output from each weight sensor, that is, the weight signal, the moving object detection process is performed based on the magnitude of the weight signal for each position coordinate. Here, the magnitude of the weight signal represents the weight of the weight body applied by the weight sensor. The signals output from the respective weight sensors are collected and acquired, and those corresponding to the weight values corresponding to the magnitudes of the weight signals output from the respective weight sensors according to the position coordinates of the respective weight sensors are referred to as “initial measurement data sets”. Name it. Then, the moving object detector 13 selects the weight sensors determined to be measured by the moving object in the initial measurement data set, and detects the moving object based on the positions of the selected weight sensors.

To detect the moving object, the first extraction module 131 of the moving object detecting unit 13 performs the first extraction based on the weight according to the magnitude of the weight signal for each weight sensor based on the initial measurement data set. In detail, the first extraction module 131 determines whether the weight for each weight sensor is located within the setting range, and deletes the coordinates of the weight sensor from the initial measurement data set according to the determination result. In detail, the first extraction module 131 includes the coordinates of the weight sensor in the initial measurement data set when the weight measured by the arbitrary weight sensor is located within a setting range consisting of a preset minimum value and a maximum value. If the weight measured by the sensor is out of the setting range, the coordinate of the weight sensor is deleted from the initial measurement data set. In this process, only the weight sensors that are determined to be outputted by the weights that may correspond to the moving body among the weights actually detected are selected and included in the initial measurement data set.

The second extraction module 132 measures the amount of change in the weight signal, that is, the amount of change in weight per predetermined time (herein referred to as unit time) for each weight sensor, and performs the second extraction based on the measured weight change. In detail, the first extraction module 131 measures the weight change amount of time based on the initial measurement data sets in which the first extraction is performed, and outputs a signal by a weight body that can be determined as a fixed body according to the measured weight change amount. Exclude weight sensors from the initial measurement data set. The unit time may be set in various ways according to the measuring device (1).

The second extraction module 132 compares the measured weight change amount per unit time with a preset set amount, and if the measured weight change amount is greater than the set amount, includes the corresponding weight sensor in the initial measurement data set and measures the measured weight change amount. If it is smaller than this set amount, the coordinate of the weight sensor is deleted from the initial measurement data set. In this process, the weight sensors that are determined to be output by the stationary body among the weights that are substantially detected are deleted, and only the weight sensors that are determined to be output by the weights that may correspond to the moving body. Will remain. This process filters out fixtures that are detected by the weight sensor but do not move substantially.

As described above, among the weight sensors included in the initial measurement data set, the weight sensors still remaining through the first extraction and the second extraction process are called "extraction data sets". The extracted data set includes the position coordinates of the weight sensors determined to detect the moving object and the measured weights corresponding thereto.

The grouping module 133 performs grouping on the weight sensors determined to detect the moving object through the first and second extraction. In detail, the grouping module 133 performs grouping to form a group by connecting sensors located within a set distance based on the position coordinates of the respective weight sensors included in the extracted data set. Here, the set distance may be set based on, for example, a human body, and the weight sensors included in one group are determined to detect pressure applied by one moving body (eg, a person). Such grouping may be called "shortest point grouping".

Data corresponding to the results of performing grouping on each of the weight sensors included in the extracted data set is referred to as a "grouping set" for convenience of description. For example, the grouping set may include coordinates and measured weights of the weight sensors included in the group corresponding to the identification numbers assigned to the groups. Here, the identification number assigned to each group may be a number assigned separately or may be a coordinate of the center point of the corresponding group described later.

The moving object detector 13 according to an embodiment of the present invention obtains an initial measurement data set and performs first and second extraction by the first and second extraction modules 131 and 132 as described above with respect to the initial measurement data set. A process of obtaining the extracted data set and performing a grouping process by the grouping module 133 on the extracted data set is performed a plurality of times. The first extraction, the second extraction, and the grouping process may be collectively referred to as a "filtering process".

The signals output from the weight sensor in the measurement area may vary, and in order to accurately detect the moving object based on the signals of the weight sensors varying, the filtering process is repeated more than a predetermined number of times. . A plurality of grouping sets may be obtained according to the result of the repetition. The detection module 134 of the moving object detector 13 may acquire information about the finally grouped weight sensors based on the plurality of grouping sets. Here, the final grouping set may be generated by adding all the groups belonging to the plurality of grouping sets. In this case, only one group included in all the different grouping sets may be selected. Each group included in the final grouping set is determined to correspond to one moving object.

The detection module 134 may perform a function of controlling each module 131, 132, and 133 so that the filtering process is performed a plurality of times.

3 to 5 are exemplary views illustrating a filtering process for detecting a moving object according to an embodiment of the present invention. In particular, FIG. 3 is an exemplary view showing weights located in the measurement region, FIG. 4 is an exemplary view showing a case where primary and secondary extractions are performed on the weight sensors detecting the weight of FIG. 3. Is an exemplary view showing the result of performing grouping on the weight sensors in which the primary and secondary extractions are performed.

For example, assume that there are a plurality of weights in the measurement area as in FIG. 3. As in the example of FIG. 3, there may be fixtures that do not move like furniture in the measurement area, and there may be movable objects that move like a person. The moving bodies may be in various forms as shown in FIG. 3, for example, sitting in a chair, moving, using a wheelchair, or the like.

The weight body is detected based on the weight signals output from the weight sensors installed in the measurement area, and positions of the weight sensors that detect the weight body can be secured as shown in FIG. 4. Then, from the weight sensors detecting the weight body, only the weight sensors whose weight change according to the output weight signal is located within the setting range are determined to be larger than the setting amount. In FIG. 4, the positions of the weight sensors for which the amount of change in the weight per unit time is detected are indicated by “●”, and the positions of the weight sensors for which the amount of change in the weight per unit time are not detected are indicated by “○”. Weight sensors marked with "●" are included in the extraction data set.

As shown in FIG. 5, the weight sensors included in the extracted data set are grouped into one group of weight sensors located within a set distance. For example, the weight sensors located within the set distance are grouped to form one group G1.

6 is an exemplary view showing a final result obtained by performing the filtering process disclosed above a plurality of times.

A plurality of grouping sets may be obtained by performing the filtering process as described above a plurality of times, and information about the finally grouped weight sensors may be obtained based on the plurality of grouping sets. For example, as shown in FIG. 6, the final grouping set may be obtained from the grouping sets obtained by repeating the filtering process. Here, three groups were acquired for the measurement area, and thus three moving objects were detected, and the positions of the detected three moving objects can be known.

In this way, the moving object detector 13 may detect moving objects in the measurement area based on the signals of the weight sensors. Each group included in the final grouping set obtained according to the above-described moving object detection is processed as corresponding to one moving object.

On the other hand, the moving object counting unit 14 counts the moving objects detected by the moving object detecting unit 13 and measures the number of moving objects. The number of moving objects may be measured by counting the number of groups included in the final grouping set obtained by the moving object detecting unit 13. For example, according to FIG. 6, the number of moving bodies may be measured as three.

The activity amount measuring unit 15 measures the amount of activity of the moving object detected by the moving object detecting unit 13. For example, the amount of activity of the moving object corresponding to the group is measured based on the change in weight measured by the weight sensor constituting each of the groups included in the final grouping set obtained by detecting the moving object.

For each group constituting the final grouping set, the weight change amount per unit time may be measured, and based on the result, the activity amount of the moving object corresponding to each group may be measured. The unit time used here and the unit time used in the above filtering process may be different.

The movement of the mobile body varies. For example, the movement of a person's hands or feet while a person in a mobile chain is sitting on a chair is included in the activity.

In an embodiment of the present invention, an evaluation score indicating an activity amount is differently assigned according to an operation state of the moving object, and the activity amount of the moving object is measured based on the evaluation score. Here, the operating state can be defined in various ways, in this case, if the person in the mobile chain is standing, standing but standing with crutches, sitting on the chair, sitting on the chair but legs are not located on the ground, This is defined as when a chair sits and only one foot is positioned on the ground. Each operation state is given an evaluation score representing a different activity amount, and the activity amount is measured based on the total sum of the evaluation scores accumulated for the corresponding group during the set time. To this end, in an embodiment of the present invention, for example, an evaluation score may be assigned by determining an operation state based on the number of weight sensors whose weight is measured for each group or the number of weight sensors in which a weight change amount is detected.

For example, when a person in a mobile chain is standing, a signal can be output by two weight sensors or a weight change can be measured only by two of the detection sensors of the group, in which case a "two point" To give.

In addition, when a person is standing but using crutches, the signal can be output by three weight sensors or the weight change can be measured only by three of the detection sensors of the group. ".

In addition, when a person is sitting in a chair, a signal may be output by six weight sensors in consideration of the number of legs of a chair and the number of legs of a person, or the weight change may be measured only by six sensors of the corresponding group of sensors. In such a case, a "6 points" is awarded to the group.

In addition, if a person is sitting on a chair but the legs are not located on the ground, only four chair legs are considered, and the weight change is measured only by four weight sensors or by four of the detection sensors in the group. In this case, "4 points" is given to the corresponding group.

In addition, when the chair is sitting and only one foot is positioned on the ground, the signal may be output by five weight sensors or the weight change may be measured only by five of the detection sensors of the group. Dot ".

However, the above descriptions are only examples, and the evaluation score may be given by measuring the operation state of the moving object by various methods such as considering the number or position of the weight sensors included in each group.

In addition, as each group included in the final grouping set is processed as the detected moving object, each group may be characterized based on the position of the weight sensors included in each group and the weight measured by the respective weight sensors. For example, the shape of the group may be defined based on the position of each weight sensor constituting the group, and the total weight of the group may be obtained by adding the weights measured by the weight sensors constituting the group. The center point of the group may be set based on the positions of the respective weight sensors constituting the group. Through this process, the center point, shape, and total weight of the group having a predetermined identification number may be defined as feature parameters. That is, feature parameters are assigned to groups corresponding to the detected moving objects.

7 is an exemplary view illustrating measuring an activity amount for a group detected by a moving object according to an exemplary embodiment of the present invention.

The movement state measuring unit 16 may determine that the moving object is moved when the group having the characteristic parameter is detected at various positions of the measurement area. In particular, as shown in FIG. 7, when the position of the center point of the group is changed, the moving object is changed. It can be determined that the moved, the distance the moving body moved can be calculated based on the change in the position of the center point, the direction in which the moving body moved based on the movement direction of the center point can be measured.

If the center point is changed, the coordinates of the center point of the group are changed to the moved position, and the amount of activity including the evaluation score of the group measured thereafter is cumulatively recorded corresponding to the changed coordinate.

As shown in FIG. 7, the activity amount measuring unit 15 sets an evaluation score that is accumulated based on the measured amount of weight change and an evaluation score that is given for each moving distance calculated based on the position change amount of the center point of each group. The cumulative calculation may be performed during the activity measurement time, and the cumulative calculated value may be used as the activity amount of the corresponding group, that is, the movement amount. The process of measuring the activity amount for each group may also be repeated a plurality of times.

Meanwhile, the moving state measuring unit 16 may classify the moving object detected as the first moving object and the second moving object based on the measured movement pattern of the moving object.

The first moving body represents a moving body having a constant moving pattern such as a mobile robot or a mechanical device, and the second moving body represents a remaining moving body except for the first moving body. The second mobile may be a human. For example, the moving state measuring unit 16 calculates the moving speed of the moving object based on the moving distance and the moved coordinate of the center point of each group included in the final grouping set. In addition, even if the calculated moving speed is constant without change or there is a change, when the change amount is smaller than the set value, it is determined that the moving object is the first moving object having a constant moving pattern. In addition, the movement state measuring unit 16 may measure the movement pattern of the moving body based on the position and the moving direction of the center point of each group, and determine that the moving body is the first moving body when the measured movement pattern shows a constant pattern. have. The movement pattern may be based on the moving direction of the moving object. For example, when the moving object continues to move in the same direction for a predetermined time in the measurement area, it may be determined that the moving object moves in a constant moving pattern.

In addition, the activity amount measuring unit 15 (or the moving state measuring unit 16) may determine whether the moving body is the first moving body or the second moving body based on the change amount of each weight per set time for each group. For example, when the amount of change in the weight measured per set time is smaller than the set value, it may be determined that the moving object such as a robot is moving in a certain pattern, and the moving object corresponding to the group may be determined as the first moving object. .

However, the method of determining the moving pattern of the moving object and classifying it as the first moving object or the second moving object based on the signals from the weight sensors provided at the plurality of positions in the measurement area is not limited to the above-described one.

Meanwhile, the group classified as the first moving object may be excluded from the target to measure the amount of activity so that unnecessary activity amount measurement is not performed. For example, when controlling a device for adjusting the temperature or humidity of the measurement area based on the amount of activity of the moving objects detected in the measurement area, the amount of activity of the first moving object such as a robot greatly affects the temperature or humidity in the measurement area. No activity measurement is performed for the first mobile body. Thereby, the time, processing load, etc. which are required for the measurement of the mobile body activity of the measuring apparatus 1 can be reduced.

Through the measuring device 1 having such a structure, the weight body detected based on the change in weight measured using the weight sensor can be classified into a moving body and a fixed body, and the positions of the weight sensors detecting the weight body determined as the moving body. The amount of activity of the moving object can be measured based on the amount of change in weight measured by the weight sensors.

On the other hand, when measuring the weight based on the signal measured by each weight sensor 11, the measuring apparatus 1 can use the absolute value of the measured signal.

Next, a method of measuring the activity state of the moving body according to the embodiment of the present invention will be described based on the structure described above.

8 is a flowchart illustrating a method for measuring the activity state of a moving object according to an embodiment of the present invention. Here, the activity state includes at least one of the number of moving objects, the active amount of the moving object, the moving distance of the moving object, the moving speed of the moving object, and the moving pattern of the moving object, and may further include other parameters that may be generated according to the movement or operation of the moving object. have.

In order to detect the moving object located in the measurement area and measure the activity state of the detected moving object, first, signals output from each weight sensor located in the measurement area are collected. In addition, the magnitude of the signal output, i.e., the weight signal, is output to the position coordinates of each weight sensor, and the moving object detection process is performed based on the magnitude of the weight signal for each position coordinate. In this case, the magnitude of the weight signal represents the weight of the weight body applied by the weight sensor, and thus an initial measurement data set is formed (S100).

The moving object is detected based on the signals of the weight sensors included in the initial measurement data set. To this end, first, it is determined whether the weight according to the magnitude of the weight signal for each weight sensor is located within the setting range (S110). Based on the determination result, the first extraction is performed to select only the weight sensors whose weight measured among the weight sensors included in the initial measurement data set are within a setting range. Coordinates of the weight sensors whose weight is not measured within the set range are deleted from the initial measurement data set (S120).

Then, the second extraction is performed to select only the weight sensors having the amount of change in the weight per unit time measured among the first extracted weight sensors more than the set amount (S130). Even in this case, the coordinates of the weight sensors whose change amount of the weight is smaller than the set amount are deleted from the initial measurement data set (S120). Here, the fixed body or the first moving bodies may be filtered.

In the extraction data set including the weight sensors selected through the first and second extraction processes from the initial measurement data set, grouping is performed by connecting two coordinates within a set distance and setting them as one group (S140).

When the final grouping set is generated by performing the filtering process including the first and second extraction processes and the grouping process, the finally obtained groups are processed as one moving object, and the number and positions of the moving objects are based on the finally obtained groups. Measured (S150).

Then, the change amount of weight per set unit time of each group is measured to give an evaluation score as described above, and the activity amount of the corresponding group, that is, the moving body, is measured based on the evaluation score accumulated for each group (S170). In this case, an evaluation score can be given for each moving distance calculated based on the movement amount of the center point of each group, and cumulatively summing up the change amount of weight and the evaluation points given for each moving distance for each group during the set activity measurement time. The value of the summed score can be used as the activity of the group, that is, the moving object.

By using the measuring device 1 operated as described above, the number of people located in a predetermined area can be accurately measured, and in addition, the activity state including the amount of activity of the person can be measured more effectively. In particular, by detecting the moving object using the weight sensors provided in the measurement area, even if the layout of the entrance and the like installed in the measurement area is changed, the moving object can be effectively detected without being affected.

By using the activity state measuring device 1 of the movable body according to the embodiment of the present invention operating as described above, it is possible to efficiently control the electrical device that consumes energy.

9 is a view showing the structure of a device control system according to an embodiment of the present invention.

The device control system 2 controls a plurality of electric devices 31 to 3n (denoted by "31" as a representative number for convenience of description) as shown in FIG. 9, in particular provided from the measuring device 1. A data acquisition unit 21 receiving data corresponding to an active state of the moving object for each measurement area to be operated, a first operation control unit 22 for operating or stopping each device based on the acquired data, and based on the obtained data And a second operation control unit 23 for controlling the operation amount of each device.

Here, the first operation control unit 21 operates or stops the operation of the electric device 31, and is shown here as "ON" to operate the operation for convenience of description, and "OFF" to stop the operation. ) ". Accordingly, the first operation control unit 22 turns on or off the electric device 31.

The second operation control unit 23 controls how much operation amount the electric device 31 is operated. For example, when the electric device 31 operates at different operation amounts for a plurality of levels, The electrical device 31 is operated at one of the plurality of levels.

The electric device 31 according to the embodiment of the present invention is a device in which the operating state and the amount of operation should be changed according to the active state of the moving body. Here, for example, the electric device 31 is a heating device, a cooling device, a ventilation device, an air. It is assumed that the air conditioner and the lighting devices, which are the air conditioning devices, such as the purification device.

10 is an exemplary view illustrating operating the air conditioner and the lighting device based on the activity state of the moving object according to the embodiment of the present invention. In FIG. 10, the electric device 10 is a lighting device, a heating device, or an air purifying device as an example, and these devices are installed in the measurement area.

The device control system 2 according to an exemplary embodiment stores and manages energy supply reference data for an electric device used for each measurement area in advance. The energy supply reference data defines the on / off state of each electric device and the operation amount of each electric device based on the active state of the moving object in the measurement area, for the electric devices installed for each measurement area. It may look like the table. Here, the data representing the activity state may include an activity amount of the moving object, the number of moving objects, etc. The present invention is not limited thereto, and all data acquired by the measuring device 1 may be selectively included.

The first and second operation controllers 22 and 23 inquire the energy supply reference data based on the activity state of the moving object in the measurement area provided by the measurement device 1 to turn on or off the electric device located in the measurement area. In this case, it decides which level to operate, and operates each electric device accordingly.

As illustrated in FIG. 10, the measurement areas correspond to A to G on the vertical axis and 1 to 5 on the horizontal axis, and a plurality of areas A1 to A5, B1 to B5, C1 to C5, D1 to D5, E1 to E5, In the state divided by F1 to F5, G1 to G5), the amount of activity of each measuring area measured by the measuring device 1 is compared with the energy supply reference data as shown in the table shown in FIG. The purifier is turned on or off and the heating or air purifier is operated at one of three stages. For example, if the amount of activity of the moving object measured for the measuring area D5 is "200 kg / s", the lighting device, the heating device, and the air purifier are all turned on, and the heating device is operated in three stages while the air purifier is operated in two stages. Operate with

On the other hand, for example, as shown in Fig. 10, when the moving object located in the measuring area D5 is moved to the measuring area C4, the amount of activity of the moving objects in each of the measuring areas D5 and C4 is changed. As a result, when the moving object is in the measurement area D5, the device (eg, the lighting device) that has been turned off can be changed from the off state to the on state.

According to such an embodiment, the electric devices located in the corresponding area can be efficiently controlled based on the activity state indicating the number of moving objects and the amount of activity located in the specific area. In particular, by adjusting the operation state and the operation amount of the device (cooling, heating, lighting, humidity, etc.) for supplying energy to a predetermined region, it is possible to supply energy in consideration of the movement trajectory or the actual position of the person. Therefore, it is possible to improve the degree of comfort through the use of energy by minimizing the waste of unnecessary energy.

The embodiments of the present invention described above are not implemented only through an apparatus (object) and a method, but a program capable of executing a function corresponding to the configuration of the electronic commerce method and the system according to the embodiment of the present invention or the The program may be implemented through a computer readable recording medium having recorded thereon, and such an implementation can be easily implemented by those skilled in the art from the description of the above-described embodiments.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

Claims (18)

In a device that detects moving objects in the measurement area and measures activity
A plurality of weight sensors installed in the measurement area and outputting a weight signal according to the applied pressure;
A moving object detecting unit detecting a moving object located in the measurement area based on the weight signals output from the plurality of weight sensors and the position coordinates of the weight sensors; And
Activity measuring unit for measuring the amount of activity of the detected moving object based on the change amount of the weight signals output from the plurality of weight sensors during a predetermined time
Including,
The moving object detector detects at least one group consisting of at least two weight sensors based on a weight signal output from the plurality of weight sensors, a change amount of the weight signal per predetermined time, and a position coordinate of each weight sensor, and detects the detected group. An apparatus for measuring the activity state of a moving body, which processes a as a moving body. delete The method of claim 1, wherein
The moving object detecting unit,
A first extraction module for selecting weight sensors having a magnitude of a weight signal located in a preset range from an initial measurement data set in which weight signals outputted from the plurality of weight sensors and position coordinates of corresponding weight sensors correspond to each other; ;
For the weight sensors selected by the first extraction module, a change amount of the weight signal output during a preset time is measured, and among the selected weight sensors, weight sensors having a measured change amount greater than a preset set amount are selected. A second extraction module for generating an extraction data set;
For each weight sensor included in the extracted data set, a grouping set including at least one group consisting of at least two weight sensors is performed by grouping position coordinates located within a predetermined distance to form a group. A grouping module for generating; And
A detection module detecting a moving object located in the measurement area based on the grouping set
Comprising a device for measuring the activity state of the moving object. The method of claim 3, wherein
The detection module generates a plurality of grouping sets by driving the first extraction module, the second extraction module, and the grouping module a predetermined number of times, and generates a final grouping set including groups included in each of the generated plurality of grouping sets. Create,
And processing each group included in the final grouping set as one mobile object to be detected. The method according to any one of claims 1, 3 and 4
A moving object counting unit for counting groups detected by the moving object detecting unit to measure the number of moving objects; And
For the groups detected by the moving object detecting unit, the center point of the group is set based on the position of each weight sensor constituting each group, and the moving distance and the movement of the moving object corresponding to the group based on the position change amount of the center point. Movement state measuring unit for measuring the direction
Further comprising, the activity state measuring device of the moving object. The method of claim 5,
The activity measuring unit
Measuring the amount of change in the weight signal output for a predetermined time for each weight sensor included in the group, assigning an evaluation score according to the measured amount of change in the weight signal, the amount of activity of the corresponding moving body based on the accumulated evaluation score for each group To measure the activity state of the mobile body. The method of claim 6, wherein
The activity measuring unit
The evaluation score according to the position change amount of the center point for each group is further measured for a predetermined time,
And an evaluation score according to the change amount of the weight signal and an evaluation score according to the position change amount to calculate the activity amount of the moving object corresponding to each group. In the method for detecting the moving object and measuring the activity state of the moving object using a device provided in the measurement area and using a plurality of weight sensors that output a weight signal according to the applied pressure,
Generating an initial measurement data set in which the position coordinates of each weight signal and the corresponding weight sensor correspond to each other based on the weight signals output from the plurality of weight sensors and the position coordinates of the weight sensors;
Performing first extraction from the initial measurement data set to select weight sensors whose weight signals are located in a preset range;
The change amount of the weight signal output for a predetermined time with respect to the weight sensors selected by the first extraction is measured, and among the selected weight sensors, weight sensors having a measured change amount larger than a predetermined set amount are selected and extracted data. Performing a second extraction to generate a set;
For each weight sensor included in the extracted data set, a grouping set including at least one group consisting of at least two weight sensors is performed by grouping position coordinates located within a predetermined distance to form a group. Generating a grouping step; And
Detecting a moving object located in the measurement area based on the grouping set;
Including, the activity state measurement method of the moving body. The method of claim 8, wherein
Performing the first extraction, performing the second extraction, and performing the grouping repeatedly by a predetermined number of times to generate a plurality of grouping sets, and to each of the generated plurality of grouping sets. Generating a final grouping set including the included groups,
The detecting of the moving object may include detecting each group included in the final grouping set as one detected moving object. The method according to claim 8 or 9
For each weight sensor included in the group, the amount of change in the weight signal output for a predetermined time is measured, and an evaluation score is assigned according to the measured change amount, and the moving object corresponding to each group is calculated based on the accumulated evaluation score for each group. Steps to measure activity
Further comprising, the activity state measurement method of the moving body. The method of claim 10
Measuring the activity amount
A method for measuring the activity state of a moving object, which gives an evaluation score to a corresponding group based on the number of sensors outputting a weight signal among the weight sensors included in each group or the number of sensors for which a change in the weight signal is detected. The method of claim 10
Counting the groups to measure the number of moving objects; And
For each of the groups, setting a center point of the group based on the position of each weight sensor constituting each group, and measuring the moving distance and the moving direction of the moving object corresponding to the group based on the position change amount of the center point
Further comprising, the activity state measurement method of the moving body. The method of claim 12, wherein
Measuring the activity amount,
An evaluation score according to the position change amount of the center point of each group is further measured during a predetermined time, and the evaluation score according to the change amount of the weight signal and the evaluation score according to the position change amount are added to calculate the activity amount of the moving object corresponding to each group. , How to measure the state of activity of moving objects. The method of claim 10
Based on the amount of activity of the moving object to be measured, the operation amount of the at least one electric device located in the measurement area is turned on or off, and when the electric device is turned on, the operation amount of the electric device is operated in a plurality of stages. Controlling steps
Further comprising, the activity state measurement method of the moving body. The method of claim 10
Classifying the detected moving object into a first moving body including a robot and a second moving body including moving bodies other than the first moving body,
Measuring the activity amount
The activity amount measurement method of the moving object is not performed for the moving object classified as the first moving object. In a device control system for controlling the operation of a plurality of electrical devices,
From the measuring device for detecting the moving object using a plurality of weight sensors for each measuring area, and measuring the activity state of the moving object based on the weight change amount of the moving object measured according to the signal output from the weight sensor, A data acquisition unit receiving data including;
A first operation controller configured to operate or stop the respective electric devices based on the obtained data; And
A second operation controller for controlling an operation amount of each electric device based on the obtained data;
Including;
At least one group consisting of at least two weight sensors is detected based on a weight signal output from the plurality of weight sensors in the measuring device, a change amount of the weight signal per predetermined time, and position coordinates of the respective weight sensors, and the detected group is Is treated as a moving object,
And the data obtaining unit receives data including an activity amount of a moving object corresponding to the detected group from the measuring device. The method of claim 16, wherein
The data provided from the measuring device
And an activity amount based on the weight change amount of the moving object for each measurement area, and further comprising at least one of the number of the moving objects, the moving distance of the moving object based on the position change amount of the center point of the moving object, and the moving direction. The method of claim 16, wherein
And the plurality of electrical devices is one of an air conditioning device and a lighting device.

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