KR20150071475A - Apparatus and method of moving direction decision using intergrated sensors - Google Patents

Abstract

As saving energy becomes important, a technology capable of determining the presence of a person in a specific space is needed to minimize the energy consumption in the space when there is no one in the specific space. The present invention relates to a device which installs two distance measuring sensors on the entrance and exit of the measuring target space to determine the number of moving objects coming in and out of the measuring target space and a method thereof. The present invention uses the distance measuring sensors to recognize the number of moving objects coming in and out as well as simply determining the entry and exit of the objects. The present invention can use such information to manage the number of moving objects present in the specific place. The moving object entrance/exit determination apparatus according to the present invention can store the number of the moving objects, increase the number of the objects by the number of entering objects, and decrease the number of the objects by the number of exiting objects. Accordingly, the present invention can control the amount of the energy supplied to the apparatus present in the specific space according to the number of the objects.

Description

[0001] APPARATUS AND METHOD OF MOVING DIRECTION DECISION USING INTERGRATED SENSORS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an apparatus and method for determining entry and exit of a moving body. More particularly, the present invention relates to an apparatus and method for detecting a moving body entering or advancing into a space to be measured and counting the number of moving bodies.

BACKGROUND ART As energy saving becomes important, a technique for determining whether a person exists in a specific space is required in order to minimize the energy consumed in the space when no person exists in the specific space. In the past, a sensor was installed inside the measurement space to detect movement of the moving object, and when no motion of the moving object was measured, it was determined that no person existed. However, in this case, there is a problem that if a person does not move in spite of existence of a person, it is judged that no person exists in the space.

In order to determine whether or not a person is present in a space to be measured, a device for detecting the entry / exit of a moving body is installed at the entrance / exit of the space to be measured, and a moving body entering / Is used to determine whether or not there is a presence. However, in this case, there is a problem that the number of people existing in the space can not be accurately grasped when a plurality of moving bodies try to advance or enter at the same time.

Therefore, even when a large number of moving bodies enter or enter at the same time, there is a growing demand for a technique for accurately grasping the number of persons existing in the measurement target space.

Korea Patent Publication No. 2005-0111854

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus and method for determining whether or not a moving object enters or exits by using two distance measuring sensors installed at a space entrance of a measurement object.

Another object of the present invention is to provide an apparatus and method for determining the number of moving objects entering or advancing by using a change in distance value measured by two distance measuring sensors provided at a space entrance of a measurement object.

Another object of the present invention is to provide an apparatus and method for determining the number of a moving object located in the measurement target space by using the number of moving objects entering or advancing into the measurement target space.

Another object of the present invention is to transmit a control signal to a device located in the space to be measured according to the number of moving objects located in a space to be measured, And an apparatus and method for controlling an apparatus located in a space to be measured.

The technical objects of the present invention are not limited to the above-mentioned technical problems, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an apparatus for determining entry / exit of a moving object, comprising: a first distance sensor installed on one side of a space to be measured to provide a first distance measurement value according to entry / A second distance sensor provided at a predetermined distance from the first distance sensor in an inner direction of the space to be measured on the first distance sensor installation surface to provide a second distance measurement value depending on whether the moving body is moving in or out, And an input / output determination unit that determines whether the moving object enters or exits the space to be measured and the number of the entry / exit bodies by receiving the second distance measurement value.

According to one embodiment, the first distance sensor includes a first transmitter for emitting a first measurement signal, a first receiver for receiving the first measurement signal reflected back and forth, and a second receiver for receiving the first measurement signal And a first detector for providing a signal for instructing emission and receiving the first measurement signal received from the first receiver to derive the first distance measurement value.

According to an exemplary embodiment, the first measurement signal may be configured as a linear signal, and the linear signal may include any one of an infrared ray, a laser, and an ultrasonic wave.

According to one embodiment, the second distance sensor comprises: a second transmitter for emitting a second measurement signal; a second receiver for receiving the second measured signal reflected back to the second transmitter; And a second detection unit for providing a signal indicating emission and receiving the second measurement signal from the second reception unit to derive the second distance measurement value.

According to an embodiment, the second measurement signal may be configured as a linear signal, and the linear signal may include any one of an infrared ray, a laser, and an ultrasonic wave.

According to one embodiment, the entry / exit determination unit determines that the first distance measurement is sensed if the first distance measurement value is less than the predetermined sensing reference value, and if the first distance measurement value is greater than the reference value And if the second distance measurement value is less than the sensing reference value, it is determined that the second distance sensor is detected, and if the second distance measurement value is within the predetermined range of time If the value is within the range of the reference value and the second initial value, it may be determined that the second distance sensor is not detected.

According to one embodiment, the first initial value is a first distance measurement value derived when there is no moving body entering or exiting the measurement subject space, and the second initial value is a first distance measurement value when there is no moving body entering / Lt; / RTI >

According to one embodiment, the entry / exit determination unit generates a first pattern in which a change in the first distance measurement value is recorded until it is determined that the first distance sensor is not detected, when the first distance sensor is detected, Generating a second pattern in which a change in the second distance measurement value is recorded until it is determined that the second distance sensor is not detected, when the second distance sensor is detected, analyzing the first pattern and the second pattern It is possible to determine whether the space to be measured is entered or not and the number of the entry / exit bodies.

According to one embodiment, when the first pattern is generated earlier than the second pattern, the entry / exit determination unit determines that the predetermined moving body detection pattern appears n times (n is a natural number) in the first pattern, It may be determined that n moving bodies have entered the measurement subject space if the moving body detection pattern appears n times within the second pattern.

According to one embodiment, when the second pattern is generated earlier than the first pattern, the entry / exit determination unit may display the moving object detection pattern n (n is a natural number) determined in the second pattern, It may be determined that n moving bodies have advanced into the measurement subject space if the moving body detection pattern appears n times in the first pattern.

According to one embodiment, the moving object detection pattern may indicate a tendency that a value constituting the pattern decreases and then increases.

According to an embodiment, the system may further include a population management unit for managing the number of living bodies in the measurement subject space by reflecting the determination of the entry / exit determination / entry / exit status of the entry / exit determination unit and the determination of the number of the entry / exit living body.

According to one embodiment, the population management unit stores information on the current population present in the measurement subject space, and when the determination result of the measurement subject space entry / exit state is determined to be entry, And if the determination result of the space entry / exit state is determined to advance, the current number of the objects can be reduced by the number of the entry / exit bodies.

According to an embodiment of the present invention, a control signal generator for generating a control signal for a device operating in the measurement object space by at least one of wired or wireless based on the number of the moving body managed by the population management unit .

According to an embodiment of the present invention, there is provided an apparatus for measuring a temperature of a measurement object, comprising: a human body sensing unit installed inside the measurement object space to sense a signal of a human body existing in the measurement object space; And a human body detection determination unit for determining presence / absence of a human body and providing the presence / absence result to the population management unit, wherein the population management unit includes a determination unit for determining a population number of the entry / exit body of the entry / exit determination unit, It is possible to manage the number of the objects in the space to be measured based on the presence or absence.

According to another aspect of the present invention, there is provided a method for determining entry / exit of a moving object, the method comprising: receiving a first distance measurement value according to whether a moving object enters or exits through a first distance sensor installed on a side surface of a space to be measured Receiving a second distance measurement value according to whether the moving body moves in or out through a first distance sensor provided in an inner space of the measurement object space on the first distance sensor installation surface, and receiving the first distance measurement value and the second distance measurement And determining whether the moving object enters or exits the space to be measured and the number of entrances / exits of the moving object.

According to an embodiment, the method may further include managing the number of living bodies in the measurement subject space using the result of the step of determining whether the measurement subject space entry / exit and the entry / exit body are determined.

According to one embodiment, a method for judging entry / exit of a moving body includes a step of judging the presence or absence of a human body in the measurement subject space, a result of judging whether or not the measurement subject space entry / And a step of managing the number of living bodies in the measurement subject space using the result of the step of determining the presence or absence of the living body.

According to the present invention as described above, it is possible to grasp the number of the moving bodies entering or advancing by using two distance measuring sensors installed at the entrance of the space to be measured. That is, there is an effect that, in addition to the determination as to whether or not the moving body is entering or leaving, the number of the plurality of moving bodies can be grasped when a plurality of moving bodies enter or advance.

Further, it is possible to grasp the number of the moving bodies located in the measurement subject space based on whether or not the moving body enters the measurement subject space, and control the electric devices in the measurement subject space accordingly.

FIG. 1 is a conceptual layout diagram of an apparatus for determining entry / exit of a moving object according to an embodiment of the present invention.
FIG. 2A is a block diagram of the apparatus for determining entrance and exit according to an embodiment of the present invention.
FIGS. 3A through 4D illustrate variations of a first distance measurement value and a second distance measurement value when one moving body enters a space to be measured according to an embodiment of the present invention.
FIGS. 5A and 6B illustrate a variation of a first distance measurement value and a second distance measurement value when two moving bodies enter a measurement object space according to an embodiment of the present invention.
FIGS. 7A to 7C show variations of the first distance measurement value and the second distance measurement value when three moving bodies enter the measurement object space according to an embodiment of the present invention.
FIG. 8 is a flowchart of a method for judging entry / exit of a moving object according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element. Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" And can be used to easily describe a correlation between an element and other elements. Spatially relative terms should be understood in terms of the directions shown in the drawings, including the different directions of components at the time of use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

Hereinafter, an apparatus and a method for determining the entry / exit of a moving body and determining the number of the entry / exit bodies will be described with reference to the drawings. In addition, a method of managing the number of the objects to be measured and a method of controlling the device of the measurement object space will be described based on the determination of entry / exit of the body and the number of the bodies.

First, the configuration and operation of a device for determining entry / exit of a moving object according to an embodiment of the present invention will be described with reference to FIG. 1 to FIG. 2A. FIG. 1 is a diagram illustrating an exemplary arrangement of a device for determining entry / exit of a fuselage according to an embodiment of the present invention, and FIG. 2 (a) is a configuration diagram of an apparatus for determining entry / exit of a fuselage 100 according to an embodiment of the present invention.

As shown in FIG. 1, the first distance sensor 110 and the second distance sensor 120 of the moving object entry / exit determining apparatus according to the present embodiment are installed on one side of the entrance / exit of the measurement target space 102. At this time, the second distance sensor 120 is installed inside the measurement target space 102 on the installation surface of the first distance sensor 110. The first distance sensor 110 and the second distance sensor 120 should not be installed in parallel with the ground in a direction perpendicular to the ground and should be spaced apart from the ground by a predetermined width d in the horizontal direction.

One side of the doorway includes not only the left and right sides of the doorway but also the upper and lower ends of the doorway.

The first distance sensor 110 and the second distance sensor 120 are sensors for distance measurement. The first distance sensor 110 may include a first transmitter 112 and a first receiver 114 and the second distance sensor 120 may include a second transmitter 122 and a second receiver 124. have. The first transmitter 112 emits a first measurement signal, and the first receiver 114 receives the reflected first measurement signal. The second transmitting unit 122 emits a second measurement signal, and the second receiving unit 124 receives the reflected second measurement signal.

The first measurement signal and the second measurement signal may include any one of an electromagnetic wave signal and an ultrasonic signal. The electromagnetic wave signal may include any one of an infrared signal and a laser signal.

The first distance sensor 110 and the second distance sensor 120 may calculate the distance by analyzing the received first measurement signal and the second measurement signal. The distance calculation will be described with reference to FIG.

FIG. 2A is a block diagram showing the configurations of the moving object entry / exit determining apparatus according to the present embodiment. It will be understood that each block or each block combination may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, so that those instructions, which are executed through a processor of a computer or other programmable data processing apparatus, Thereby creating means for performing functions. These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner so that the computer usable or computer readable memory The instructions stored in the block diagram (s) are also capable of producing manufacturing items containing instruction means for performing the functions described in the flowchart block (s). Computer program instructions may also be stored on a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible for the instructions to perform the processing equipment to provide steps for executing the functions described in the flowchart block (s).

In addition, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing the specified logical function (s). It should also be noted that in some alternative implementations, the functions mentioned in the blocks may occur out of order. For example, two blocks shown in succession may actually be executed substantially concurrently, or the blocks may sometimes be performed in reverse order according to the corresponding function.

2A, the moving object entry / exit determination apparatus 100 according to the present embodiment may include a first distance sensor 110, a second distance sensor 120, and an entry / exit determination unit 150. 1, the first distance sensor 110 is installed on one side of the entrance and exit of the space to be measured 102, and the second distance sensor 120 is installed on the side of the first distance sensor 110 And is installed inside the measurement subject space 102.

The first distance sensor 110 includes a first transmitter 112, a first receiver 114, and a first detector 115. The first transmitter 112 emits a first measurement signal, and the first receiver 114 receives the reflected first measurement signal. The first detection unit 115 provides a signal for instructing the first transmission unit 112 to release the first measurement signal and receives the first measurement signal from the first reception unit 114. The first detection unit 115 may derive and output a first distance measurement value indicating a distance between a point where the first measurement signal is reflected and the first distance sensor 110 based on the received first measurement signal have.

The first measurement signal is configured as a linear signal. The linearity signal may include any one of an electromagnetic wave and an ultrasonic wave. The electromagnetic wave may include any one of an infrared ray and a laser.

A method for deriving the first distance measurement value by the first detection unit will be described as follows. For example, when the first detecting unit 115 emits infrared rays from the first transmitting unit 112 when the infrared ray is used as the first measuring signal, when the first receiving unit 114 receives the infrared rays reflected by the first receiving unit 114 A value obtained by multiplying the speed of light by the time taken to output the first distance measurement value.

The second distance sensor 120 includes a second transmitter 122, a second receiver 124, and a second detector 125. The second transmitting unit 122 emits a second measurement signal, and the second receiving unit 124 receives the reflected second measurement signal. The second detection unit 125 may derive a second distance measurement value indicating a distance between the second distance sensor and the reflected point based on the received second measurement signal.

The second measurement signal may be the same as the first measurement signal. The second detection unit 125 derives the second distance measurement value because the first detection unit 115 can derive the first distance measurement value, and a duplicated description will be omitted.

The entry and exit determination unit 150 receives the first distance measurement value from the first detection unit 115 of the first distance sensor 110 and receives the second distance measurement value from the second detection unit 125 of the second distance sensor 120, It is possible to determine whether or not the moving object enters or exits the space to be measured 102 and the number of moving objects to which the moving object enters. The entry / exit determination unit 150 may receive the first distance measurement value and the second distance measurement value from either the first detection unit 115 or the second detection unit 125, either in a wireless manner or in a wired manner. The wireless scheme may be one of RF communication and WiFi communication.

The entry / exit determination unit 150 according to the present embodiment may store the first initial value, the second initial value, and the reference value. The first initial value is the first distance measurement value when the moving body does not enter and exit, and the second initial value is the second distance measurement value when the moving body does not enter and exit. The first initial value and the second initial value may represent the distance from the distance sensor to one side of the entrance and exit, and the first initial value and the second initial value may have the same value. For convenience of explanation, the first initial value and the second initial value are assumed to be the same value, and the first initial value or the second initial value is referred to as an initial value. Is a maximum value of a first distance measurement value and a second distance measurement value for determining the entry and exit of a moving body when the first distance measurement value and the second distance measurement value are provided. That is, when the first distance measurement value is equal to or less than the reference value, the entry / exit determination unit 150 can determine that the first distance sensor 110 senses the moving body. When the second distance measurement value is equal to or less than the reference value, the entry / exit determination unit 150 may determine that the second distance sensor 120 senses the moving body.

According to the present embodiment, the reference value may be a value derived by multiplying the initial value by a predetermined ratio. For example, if the first initial value and the second initial value are equal to 1 m, the initial value is 1 m, and if the predetermined ratio is 80%, the reference value is 1 m X 0.8 = 80 cm .

According to the present embodiment, the reference value may be a value arbitrarily designated after the first sensor and the second sensor are installed. For example, after the first sensor and the second sensor are installed when the width of the entrance is 1 m, the reference value may be designated as 80 cm.

The entry and exit determination unit 150 may generate the first pattern until the first distance sensor 110 detects the moving body again from the time when the first distance sensor 110 senses the moving body . When the first distance measurement value indicates a value that is greater than or equal to the reference value and equal to or less than the first initial value for a predetermined time or more determined in the assessment, the entry / exit determination unit 150 determines whether the first distance sensor 110 ) Can detect that the moving body is undetected. The entry / exit determination unit 150 may generate the second pattern from when the second distance sensor 120 senses the moving body until the second distance sensor 120 senses the moving body again. When the second distance measurement value indicates a value that is greater than or equal to the reference value and equal to or less than the second initial value for a predetermined time or more determined in the assessment, the entry / exit determination unit 150 determines whether the second distance sensor 120 ) Can detect that the moving body is undetected.

The first pattern may be a set of first distance measurements collected in time order, and the second pattern may be a set of second distance measurements collected in time order. According to another embodiment, the first pattern is a set of differences between a previous value of a first distance measurement value collected in a time order and a current value of a first distance measurement value, And may be a set of differences between the previous value of the distance measurement and the current value of the second distance measurement.

When both the first pattern and the second pattern are generated, the entry / exit determination unit 150 determines whether the moving object enters / exits the measurement object space 102 based on the first pattern and the first pattern, The number of entrances and exits can be determined. When the first pattern is generated earlier than the second pattern, it is determined that the moving body has entered the entry / exit determination unit 150, and if the second pattern is generated earlier than the first pattern, the entry / . The entry / exit determination unit 150 can determine the number of times that the predefined moving object detection pattern appears in the first pattern and the second pattern. The moving object detection pattern is a pattern indicating a change in the distance measurement value output by the distance sensor when the entry / exit determination unit 150 passes one of the moving objects ahead of the distance sensor. For example, the moving object detection pattern may be a pattern indicating a tendency that a distance measurement value increases and then increases. If the number of times the moving body detection pattern appears in the first pattern is n (n is a natural number) and the number of times the moving body detection pattern appears in the second pattern is n, the entry / Can be judged to be n. If the moving body normally enters and leaves the measurement target space 102, the number of times the moving body detection pattern appears in the first pattern and the second pattern should be the same.

The method for determining the number of times the moving object detection pattern appears in the first pattern and the second pattern by the entry / exit determination unit 150 according to the present embodiment may include detecting an inflection point in the first pattern and the second pattern Method can be used. For example, if the moving object detection pattern is decreased and then the pattern is incremented, if the first pattern and the second pattern value are differentiated to find an inflection point where the differential value changes from a negative value to a positive value, It can be a pattern matching the detection pattern.

According to the present embodiment, the moving object entrance / exit determination apparatus including the entry / exit determination unit 150 can be installed at a position away from the first distance sensor 110 and the second distance sensor 120. If the sensors 110 and 120 are installed separately at the entrance and exit of the measurement object space 102, the installation cost can be reduced, and the installation and the maintenance can be easily performed. When the first distance sensor 110 and the second distance sensor 120 are wirelessly connected to the moving object entrance / exit determination device, there is an advantageous effect that the installation becomes easier than when the first distance sensor 110 and the second distance sensor 120 are connected by wire.

The operation of the entry / exit determination unit 150 will be described in more detail with reference to Figs. 3A to 7C.

First, the operation of the entry / exit determination unit 150 for determining one moving body entering the measurement target space 102 will be described with reference to FIGS. 3A to 3D. The upper graphs 510, 512, 514 and 516 in FIGS. 3A to 3D are graphs showing the second distance measurement values outputted by the second detection unit 125 with respect to the time axis, and the lower graphs 511, 513, 515 and 517 Is a graph showing the first distance measurement value output by the first detection unit 115 with respect to the time axis.

3A shows signal reception in a state before the moving body 210 enters the measurement target space 102. FIG. The first measurement signal emitted from the first transmitter is reflected by the opposite wall of the exit of the measurement target space 102 because there is no obstacle in the middle, and is received by the first receiver, and based on the received first measurement signal, The first distance measurement value output by the detection unit 115 is a first initial value dw. Since the second measurement signal emitted from the second transmission unit also does not encounter any obstacle in the middle, the second distance measurement value outputted by the second detection unit is the second initial value dw. Since the first distance measurement value and the second distance measurement value are both greater than the reference value D, the entry / exit determination unit 150 determines that the first distance sensor 110 and the second distance sensor 110 are in the ' It can be determined that the moving body 120 has missed the moving body.

3B to 3C illustrate signal reception in a state where the moving body 210 is entering the measurement target space 102. FIG.

3B, the moving body 210 is positioned at the front of the first distance sensor 110 at a time t1, and the first measurement signal emitted from the first transmitter is reflected by the moving body 210 to be transmitted to the first receiver 114, As shown in FIG. The first detection unit 115 derives a first distance measurement value between the first distance sensor 110 and the moving body 210 based on the first measurement signal received by the first reception unit 114. Referring to the first distance measurement value graph 513, it can be seen that the first distance measurement value is smaller than the reference value D. Since the body 210 has not yet passed in front of the second distance sensor 120, the second distance measurement is still the second initial value dw. Therefore, the entry / exit determination unit 150 determines that the first distance sensor 110 senses the moving body 210, and starts generating the first pattern based on the first distance measurement value.

In FIG. 3C, the body 210 is located in front of the second distance sensor 120 by passing the first distance sensor 110. Referring to the first distance measurement value graph 515 and the second distance measurement value graph 514, since the moving body 210 passes through the first distance sensor 110 at time t2, 1 Indicates the initial value (dw). Therefore, the entry / exit determination unit 150 completes the first pattern generation. At time t3, the moving body 210 starts to pass in front of the second distance sensor 120, so that the second measurement signal emitted from the second transmitter is reflected on the body 210 and is received by the second receiver. The second detection unit 125 derives a second distance measurement value, which is a distance between the equivalent value 210 and the second distance sensor 120, based on the received second measurement signal. Referring to the second distance measured value graph 514, it can be seen that the second distance measured value is smaller than the reference value D. Therefore, the entry / exit determination unit 150 determines that the second distance sensor 120 senses the moving body 210 from time t3 and starts generating the second pattern for recording the second distance measurement value.

In FIG. 3D, the moving body 210 has entered the measurement target space 102. Referring to the first distance measurement value graph 517 and the second distance measurement value graph 516, at time t4, the moving body 210 passes the second distance sensor 120 to enter the measurement target space 102 Complete. The first distance measurement value indicates the first initial value dw and the second distance measurement value indicates the second initial value dw because no obstacle exists in front of the first distance sensor 110 and the second distance sensor 120. [ Lt; / RTI > Therefore, the entry / exit determination unit 150 determines that the body 210 has completely passed through the entrance / exit, and completes the generation of the second pattern.

A method for determining whether or not the entry / exit determination unit 150 enters or advances the measurement target space 102 using the generated first pattern and second pattern and determining the number of the entry / exit bodies will be described next. Respectively.

In the present embodiment, the first pattern is a set of values of the interval from t1 to t2 of the first distance measurement graph 517 in Fig. The second pattern is a set of values of the interval from t3 to t4 of the second distance measurement graph 516 in Fig. The entry / exit determination unit 150 determines how many times the moving object detection pattern appears in the first pattern and the second pattern. In the present embodiment, the moving object detection pattern is a variation pattern of a value obtained by decreasing the distance measurement value, and determines the number of times the moving object detection pattern appears in the first pattern and the second pattern as the number of the moving object. In the first pattern, it decreases once in the interval from t1 to t2 and increases, and in the second pattern, it decreases once in the interval from t3 to t4, and then increases. Therefore, the entry / exit determination unit 150 determines that one moving object detection pattern appears in the first pattern, and determines that one moving object detection pattern appears even in the second pattern, and determines that the number of the moving objects entered / exited is one.

In this embodiment, the entry / exit determination unit 150 determines the generation post-occurrence time of the first pattern and the second pattern in order to determine whether or not the moving body has entered the space to be measured or advanced. When the first pattern is generated first, the moving body is judged as entering because it is excessive from the first distance sensor 110, and when the second pattern is generated first, the moving body is past the second distance sensor 120, can do. The first pattern is between t1 and t2, the second pattern is between t3 and t4, and t3 is later than t2, so that the generation of the first pattern is fast. Therefore, the entry / exit determination unit 150 determines that the moving body has entered.

Next, another operation of the entry / exit determination unit 150 for determining one moving body entering the measurement target space 102 will be described with reference to Figs. 4A to 4D. The upper graphs 520, 522, 524 and 526 in FIGS. 4A to 4D are graphs showing the second distance measurement values output from the second detection unit 125 with respect to the time axis, and the lower graphs 521, 523, 525 and 527 Is a graph showing the first distance measurement value output by the first detection unit 125 with respect to the time axis.

4A to 4D are diagrams illustrating a case where the installation distance of the first distance sensor 110 and the second distance sensor 120 is relatively narrow or when the size of the moving body entering and leaving the measurement target space 102 is relatively large, (150).

4A shows a state in which the moving body 210 passes in front of the first distance sensor 110 at time t1. The first measurement signal emitted from the first transmitter 112 of the first distance sensor 110 is reflected by the body 210 and is received by the first receiver 114. Based on the received first measurement signal, 1 detection unit outputs the first distance measurement value. Referring to the first distance measurement graph 521, the first distance measurement value is smaller than the reference value D. Therefore, the entry / exit determination unit 150 starts generating the first pattern. Since there is no obstacle in front of the second distance sensor 120, referring to the first distance measurement graph 520, the second distance measurement value indicates a second initial value dw.

4B shows a state in which the moving body 210 passes in front of the first distance sensor 110 and the second distance sensor 120 at time t5. The first measurement signal emitted from the first transmitter 112 and the second measurement signal emitted from the second transmitter 122 are both reflected from the body 210. Referring to the first distance measurement graph 523 and the second distance measurement graph 522, the first distance measurement and the second distance measurement are both smaller than the reference value D. Therefore, the entry / exit determination unit 150 starts generating the second pattern.

4C shows a state where the moving body 210 passes the first distance sensor 110 and passes the second distance sensor 120 at time t6. Since there is no obstacle in front of the first distance sensor 110, referring to the first distance measurement graph 525, the first distance measurement value indicates a first initial value dw. Therefore, the entry / exit determination unit 150 completes the generation of the first pattern since the first distance measurement value is constant at the first initial value dw. Referring to the second distance measurement graph 5245, the second distance measurement value indicates a value smaller than the reference value D because the body 210 is in front of the second distance sensor 120.

FIG. 4D shows a state in which the moving body 210 has completed entry into the measurement object space at time t7. Referring to the first distance measurement graph 527 and the second distance measurement 526, since there are no obstacles in front of the first distance sensor 110 and the second distance sensor 120, Indicates a first initial value dw and the second distance measurement indicates a second initial value dw. Therefore, the entry / exit determination unit 150 completes the generation of the second pattern since the second distance measurement value is constant at the second initial value dw.

When the generation of the first pattern and the second pattern is completed, the entry / exit determination unit 150 can determine whether the moving body is entering or exiting and the number of the entry / exit body. In the first distance measurement graph 527 of FIG. 4D, the first pattern interval is from t1 to t6, and the second distance measurement value graph 526 is from t5 to t7. Accordingly, the moving object detection pattern increases once in the first pattern, and once in the second pattern. The first pattern is generated at time t1 and the second pattern is generated at time t5 which is later than t1. Therefore, the entry / exit determination unit 150 can determine that the moving body 210 has entered the measurement target space 102 and the number of the moving bodies entered is one (1).

3A to 3D and FIGS. 4A to 4D, the distance between the first distance sensor 110 and the second distance sensor 120, and the size of the moving body, Does not affect the shape of the first pattern and the shape of the second pattern generated by the second pattern. Therefore, the entry / exit determination method of the entry / exit determination unit 150 according to the present embodiment can be applied regardless of the installation distance between the first distance sensor 110 and the second distance sensor 120, The same can be applied.

The operation of the entry / exit determination unit 150 will now be described with reference to FIGS. 5A to 6D when the two moving bodies 210 and 220 continuously pass through the entrance / exit of the measurement target space 102 at intervals of a predetermined distance . The upper graphs 530, 532, 534, 536, 540 and 542 of the respective figures show graphs of the second distance measurement values with respect to the time axis and the lower graphs 531, 533, 535, 537, 541, Lt; / RTI > shows a graph of first distance measurements for the axis.

5A shows a state in which the two moving bodies 210 and 220 successively enter the entrance and exit of the measurement target space 102. FIG. The first moving body 210 is ahead of the second moving body 220 and is further biased to the right. At time t1, the first moving body 210 is positioned in front of the first distance sensor 110. [ Referring to the first distance measurement value graph 531, the first detection unit outputs a first distance measurement value shorter than the reference value D from time t1. Referring to the second distance measurement graph 530, the second detection unit outputs a second initial value dw. Therefore, the entry / exit determination unit 150 can start generating the first pattern from time t1.

FIG. 5B shows a state in which two moving bodies 210 and 220 sequentially pass through the entrance and exit of the measurement target space 102. FIG. At time t10, the first moving body 210 is positioned in front of the second distance sensor 120 and the second moving body 220 is positioned in front of the first distance sensor 110. [ Referring to the first distance measurement value graph 533, since the first moving body passes the first distance sensor 110 between the time t1 and the time t10, the first distance measurement value decreases and then increases. After the time t10 Since the second body 220 is positioned in front of the first distance sensor 110, the first distance measurement value decreases again. Referring to the second distance measurement value graph 532, since the first moving body 210 is positioned in front of the second distance sensor 120 from time t10, the second distance measurement value is decreased to be less than the reference value D. Therefore, the entry / exit determination unit 150 can start generating the second pattern from time t10.

5C shows a state in which the two moving bodies 210 and 220 sequentially pass through the entrance and exit of the measurement target space 102. FIG. At time t11, the first moving body 210 is completely passed through the entrance and entrance, and the second moving body 220 is positioned in front of the second distance sensor 120. [ Referring to the upper graph 534, since the first moving body 210 passes the front of the second distance sensor 120 between the time t10 and the time t11, the second distance measurement value is decreased and increased, and from the time t11, Since the body 220 passes in front of the second distance sensor 120, the second distance measurement value decreases again. Referring to the lower graph 535, since the second moving body 220 passes the first distance sensor 110 between the time t10 and the time t11, the first distance measurement value decreases and then increases, and from the time t11, Since there is no moving body in front of the distance sensor 110, the first distance measurement value indicates the first initial value dw. Therefore, the entry / exit determination unit 150 can complete the first pattern generation at time t11.

5D shows a state in which the two moving bodies 210 and 220 successively pass through the entrance and exit of the measurement target space 102 and have completed entry. At time t12, the second moving body 220 passes the second distance sensor 120 and completes the entry, and there are no obstacles in front of the first distance sensor 110 and the second distance sensor 120. [ Referring to the first distance measurement graph 537, the first distance measurement value indicates a first initial value dw. Referring to the graph 536 of the second distance measurement, since the second moving body 220 passes the second distance sensor 120 between the time t11 and the time t12, the second distance measurement value decreases and then increases The second distance measurement from time tl2 indicates the second initial value dw. Therefore, the entry / exit determination unit 150 can complete the second pattern generation at time t12.

When the generation of the first pattern and the second pattern is completed, the entry / exit determination unit 150 may analyze the first pattern and the second pattern to determine whether or not the moving body has entered or exited and the number of the moving bodies. The first pattern of FIG. 5D corresponds to t1 to t11 in the first distance measurement graph 537, and the second pattern corresponds to t10 to t12 in the second distance measurement graph 536. FIG. The entry / exit determination unit 150 may generate the first pattern from the time t1 and the second pattern since the time t10 after the time t1, so that the entry / exit determination unit 150 can determine that the vehicle enters. The entry / exit determination unit 150 determines that the number of the moving bodies is two because the moving body detection pattern increases twice in the first pattern and the moving body detection pattern appears twice in the second pattern .

Next, with reference to FIGS. 6A to 6B, a method for determining the entry / exit determination unit 150 for another case in which the two moving bodies 210 and 220 enter and exit will be described as follows.

6A shows a state in which two moving bodies are passed through an entrance of the measurement target space 102 side by side in a row. At time t1, the first moving body 210 starts to pass in front of the first distance sensor 110. [ At time t10, the first moving body 210 starts to pass in front of the second distance sensor 120, and the second moving body 210 starts passing in front of the first distance sensor 110. [ At time t11, the first moving body 210 completes entry through the entrance and the second moving body 220 starts to pass in front of the second distance sensor 120. At time t12, the second moving body 220 completes entry through the entrance. The distance detected by the first distance sensor 110 and the second distance sensor 120 of the first moving body 210 is set to be equal to or larger than the distance between the first moving body 210 and the second moving body 220, The distance and value detected by the first distance sensor 110 and the second distance sensor 120 indicate the value.

Referring to the first distance measurement graph 541 of FIG. 6A, the entry / exit determination unit 150 generates a first pattern corresponding to a period between time t1 and time t11. Referring to the second distance measurement graph 540 of FIG. 6A, the entry / exit determination unit 150 generates a second pattern corresponding to a period between time t10 and time t12. Based on the first pattern and the second pattern, the entry / exit determination unit 150 determines that the generation start time t1 of the first pattern is faster than the generation start time t10 of the second pattern, . The entry / exit determination unit 150 determines that two moving bodies have entered since the moving body detection pattern increases twice in the first pattern and the moving body detection pattern appears twice in the second pattern .

6B shows a state in which the two moving bodies 210 and 220 pass through the entrance and exit of the measurement target space 102. As shown in FIG. The first moving body 210 is ahead of the second moving body 220 and passes through the entrance with a relatively left-handed position. At time t1, the first moving body 210 starts to pass in front of the first distance sensor 110. [ At time t10, the first moving body 210 starts to pass in front of the second distance sensor 120, and the second moving body 210 starts to pass in front of the first distance sensor 110. [ At time t11, the first moving body 210 completes entry through the entrance and the second moving body 220 starts to pass in front of the second distance sensor 120. At time t12, the second moving body 220 completes entry through the entrance. Since the first moving body 210 is biased to the left of the second moving body 220, the distance sensed by the first distance sensor 110 and the second distance sensor 120 to the first moving body 210, (220) is detected longer than the distance sensed by the first distance sensor (110) and the second distance sensor (120).

Referring to the first distance measurement graph 543 of FIG. 6B, the entry / exit determination unit 150 generates a first pattern corresponding to a period between time t1 and time t11. Referring to the second distance measurement graph 542 of FIG. 6B, the entry / exit determination unit 150 generates a second pattern corresponding to the interval between time t10 and time t12. Based on the first pattern and the second pattern, the entry / exit determination unit 150 determines that the generation start time t1 of the first pattern is faster than the generation start time t10 of the second pattern, . Further, the entry / exit determination unit 150 determines that two moving bodies have entered since the moving body detection pattern increases twice in the first pattern and the moving body detection pattern appears twice in the second pattern have.

5A to 6B, the operation of the entry / exit determination unit 150 when the two moving bodies enter the entrance of the measurement target space 102 will be summarized as follows. In the case where two moving bodies continuously enter the entrance, the distance measurement value measured by the distance sensor may be different for each moving body, but it can be seen that the moving body detection pattern appears uniformly in the pattern of the distance measurement value. Therefore, the entry / exit determination unit 150 generates a pattern on the basis of the distance measurement value outputted by the distance sensor when the body moves in and out, grasps the number of appearance of the predetermined moving body detection pattern in the pattern, Can be determined. Furthermore, the entry / exit determination unit 150 can determine whether the moving body advances or not in accordance with the pattern generation order of the distance measurement values output by the respective distance sensors.

Next, referring to Figs. 7A to 7C, the operation of the entry / exit determination unit 150 when the three moving bodies enter the measurement target space 102 will be described as follows.

7A to 7C show three cases in which the three moving bodies 210, 220 and 230 pass through the entrance and exit of the measurement target space 102. FIG. The top graph of each drawing is the second distance measurement graph 550, 552, 554 output by the second detection unit of the second distance sensor 120 and the bottom graph is the first distance measurement of the first distance sensor 110 551, 553, and 555 that output the first distance measurement values.

Referring to FIGS. 7A to 7C, at time t1, the first moving body 210 starts to pass in front of the first distance sensor 110. FIG. Between time t1 and time t10, the first moving body 210 passes the first distance sensor 110. [ At time t10, the first moving body 210 starts to pass in front of the second distance sensor 120, and the second moving body 220 starts to pass in front of the first distance sensor 110. [ The first moving body 210 passes in front of the second distance sensor 120 and the second moving body 220 passes in front of the first distance sensor 110 between time t10 and time t11. At time t11, the first moving body 210 completes entry into the measurement target space 102, the second moving body 220 starts to pass in front of the second distance sensor 120, Passes through the front of the first distance sensor 110. The second moving body 220 passes the second distance sensor 120 and the third moving body 230 passes the first distance sensor 110 between the time t11 and the time t12. At time t12, the second moving body 220 completes entry into the measurement target space 102, and the third moving body 230 begins to pass in front of the second distance sensor 120. [ Between times t12 and t13, the third body 230 passes in front of the second distance sensor 120. At time t13, the third moving body 230 completes the entry into the measurement target space 102.

Referring to the first distance measurement graphs 551, 553 and 555 of FIGS. 7A to 7C, the distance measurement values (time t1 to t10) of the first moving body 210 detected by the first distance sensor 110, (T11 to t12) of the second body 220 and the distance measurement values of the third body 230 (time t11 to t12) of the bodies 210, 220 and 230 It can be seen that it depends on the relationship. For example, in FIG. 7A, since the first moving body 210 is biased to the left, the second moving body 220 is biased to the right, and the third moving body 230 is positioned at the center, It can be seen that the order is the first distance measurement value of the second body 220, the first distance measurement value of the third body 230, and the first distance measurement value of the first body 210. The same relationship is shown only in the second distance measurement graphs 550, 552, 555 in FIGS. 7A to 7C except for the start time, and thus a duplicated description will be omitted.

Based on the first distance measurement graphs 551, 553, and 555 of FIGS. 7A to 7C, the entry / exit determination unit generates a first pattern corresponding to a time interval t1 to t12, 552 and 554, a second pattern corresponding to a time interval t10 to t13 is generated. In the first pattern and the second pattern, a reduced and increased body detection pattern is displayed three times, respectively. Therefore, the entry / exit determination unit 150 can determine that the number of entrances / exits of the moving body is three. Further, since the time t1 at which the first pattern starts to be generated is earlier than the time t10 at which the second pattern starts to be generated, the entry / exit determination unit 150 can determine that the moving body has entered the measurement subject space 102.

Referring to FIGS. 7A to 7C again, only the distance measurement values of the distance sensors for the respective moving bodies in the first pattern and the second pattern are different from each other even when the number of entrances and exits is three, As shown in Fig. Therefore, the entry / exit determination unit 150 can determine the number of entrances / exits based on the number of times the moving object detection pattern appears in the distance measurement pattern. Based on the generation of the distance measurement value pattern of each distance sensor, Or whether to advance or not.

Thus, the operation of the entry / exit determination unit 150 has been described with reference to FIGS. 3A to 7C. Figures 3a-c illustrate the entry of one to three fuselages. The first distance sensor 110 and the second distance sensor 120 of the present embodiment can output a distance from a moving body to be entered or exited, rather than outputting any one of detection or non-detection of a moving body to be entered or exiting. Therefore, the method of determining whether or not the entry / exit determination unit 150 has entered or exited the moving body and the number of the entry / exit bodies can be similarly applied to the case where any of the n moving bodies continuously enters and exits.

Figs. 3A to 7C show the case where the moving body enters, but the case shown in Figs. 3A to 7C can be reversed when the moving body advances the measurement target space 102, .

Returning to Fig. 2A, the configuration and operation of the moving object entry / exit determination apparatus 100 according to the present embodiment will be described. The moving object entrance / exit determination apparatus 100 according to the present embodiment further includes a population number management unit 160 for managing the number of living bodies in the measurement target space by reflecting whether the entry / exit determination unit 150 has determined entry / can do.

According to the present embodiment, the population management unit 160 sets the number of individuals in the initial state to zero. When the entry / exit determination unit 150 determines that the vehicle enters the vehicle, the number management unit 160 increases the number of the vehicles by the number of the vehicles determined by the entry / exit determination unit 150. For example, when the number of the initial state is 0, when the entry / exit determination unit 150 determines that three individuals have entered, the value obtained by adding 3 to the population becomes a new value of the population. When the entry / exit determination unit 150 determines that the vehicle is advancing, the number management unit 160 reduces the number of the objects by the number of the bodies determined by the entry / exit determination unit 150. Therefore, the population management unit 160 can manage the number of living bodies in the measurement subject space 102 by using the determination result of the entry / exit determination unit 150.

The data on the number of living bodies in the space to be measured can be stored in a storage means (not shown). The storage means may include a cache, a read only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) But is not limited to, a non-volatile memory device such as a flash memory, a volatile memory device such as a random access memory (RAM), and a storage medium such as a hard disk drive.

In addition, data on the number of the moving bodies stored in the storage means may be transmitted to the central management server through a network interface (not shown) or accessed by the central management server.

The moving object entry / exit determination apparatus 100 according to the present embodiment may further include a control signal generation unit 170 and an outlet 180. [ The control signal generator 170 may generate a control signal for a device operating in the measurement subject space 102 based on the number of the moving body managed by the population management unit 160. The receptacle 180 may be provided with the control signal to control power supply to a device operating in the measurement target space 102. For example, the control signal generator 170 supplies power to a device installed in the measurement object space 102 when the number of the moving body is greater than 0, and when the number of the moving body becomes zero, It may provide the control signal to the outlet 180 to shut off the supply.

According to the present embodiment, the control signal generator 170 may provide the control signal to the outlet 180 in either a wired or wireless manner. When the control signal generator 170 provides the control signal to the socket 180 in a wireless manner, the socket 180 can be installed at a position physically separated from the control signal generator 170, .

According to another embodiment, the moving body entrance / exit determination apparatus 100 may further include a plurality of outlets 180. [ The control signal generating unit 170 may generate control signals for the plurality of outlets 180. [ Therefore, there is an effect that control for a plurality of devices in the measurement target space 102 is possible.

2A, although the entry / exit determination unit 150, the population control unit 160, and the control signal generation unit 170 are shown as separate blocks, it should be noted that they may be mounted on one processor according to the embodiment.

Referring to FIG. 2B, a moving object entry / exit determination device 200 according to another embodiment of the present invention will be described.

The apparatus 200 may further include a human body detection unit 190 and a human body detection determination unit 195. [ The human body sensing unit 190 may be installed in the measurement object space to sense the human body in the measurement space and provide the detection result to the human body sensing determination unit 195. The human body detection determination unit 195 may determine the presence or absence of a human body in the measurement subject space based on the detection result and provide the presence or absence of the human body to the population management unit 160.

According to another embodiment of the present invention, the human body sensing unit 190 may be multiple sensors including at least one of a human body sensor, a temperature sensor, and an illuminance sensor. The human body detection unit 190 may provide the human body detection determination unit 195 with detection results including detection success if the sensing results of the multiple sensors are equal to or greater than a predetermined reference value and detection failure if the detection results are below the reference value.

According to another embodiment of the present invention, the human body sensing unit 190 can detect the number of human bodies in the measurement subject space at a predetermined time period determined in the circumstances. For example, 5 seconds, 10 seconds, 20 seconds, 1 minute, and 2 minutes. As another example, the human body detection unit 190 may be constantly detected.

According to another embodiment of the present invention, the human body detection determination unit 190 may provide the human body management unit 160 with no human body when the detection result of the human body detection unit 190 is three or more failures. The human body detection determination unit 190 may provide the human body management unit 160 with a human body if the detection result of the human body sensing unit 190 is successful one or more times.

According to another embodiment of the present invention, the population management unit 160 uses the determination result of the entry / exit determination unit 150 and the determination result of the fluorescence detection determination unit 195 to determine the number of the moving body inside the measurement subject space . When the number of the living bodies in the measurement subject space is determined by using the determination result of the entry / exit determination unit 150, the population management unit 160 determines whether the number of living bodies of the human body provided by the human body detection determination unit 195 And provides the control signal generator 170 with the number of populations 0 when the result is the human body, and provides the control signal generator 170 with the population number 170 when the result of human presence or absence is human. When the number of the living bodies in the measurement subject space is judged by using the determination result of the entry / exit determination unit 150, the population management unit 160 determines whether the number of living bodies of the human body detected by the human body detection determination unit 195 If the result is a human body, the control unit 170 provides the control signal generator 170 with the number of populations 1 and provides the control signal generator 170 with the number of populations 0 when the result of the presence or absence of the human body is absent.

By using the human body detection result of the human body detection unit 190 and the human body detection determination unit 195 as described above, it is possible to more accurately determine the presence or absence of a human body existing in the measurement object space, can do.

Referring now to FIG. 8, a method of judging a moving body entry / exit will be described.

The moving object determining device obtains a first distance measurement value, which is a distance measurement value, from the first distance sensor (S110), and compares the first distance measurement value with a predetermined reference value (S110). If the first distance measurement value is smaller than the reference value, the first distance measurement value is generated based on the first distance measurement value (S112). The first distance measurement value is compared with the initial value of the first distance sensor (S114). If the first distance measurement value is equal to the initial value, the first pattern generation is completed (S116).

When determining that the second distance measurement value is a distance measurement value from the second distance sensor (S110), the body entrance / departure determination device compares the second distance measurement value with a predetermined reference value (S120). If the second distance measurement value is smaller than the reference value, the second distance measurement value is generated based on the second distance measurement value (S122). The second distance measurement value is compared with the initial value of the second distance sensor (S124). If the second distance measurement value is equal to the initial value, the second pattern generation is completed (S126).

When both the first pattern and the second pattern are generated, the moving object entry determining apparatus determines whether the moving object enters or exits the measurement object space (S130). In the present embodiment, if the first pattern is generated earlier than the second pattern, it is determined that the moving body is advanced when the second pattern is generated earlier than the first pattern.

If it is determined that the moving body enters or exits from either the entrance or exit, the moving body entrance / exit determination apparatus determines the number of the entrance / exit bodies (S140). The number of occurrences of the moving object detection pattern defined in advance in the first pattern and the second pattern is analyzed to determine the number of the moving bodies.

Although not shown in Fig. 8, the moving body entry / exit determining device manages the number of the moving body in the measurement subject space based on whether the moving body enters / exits and the number of the entry / exit bodies.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

The moving body entrance / exit determination device 100
The measurement target space 102
The first distance sensor 110
The first transmitting unit 112
The first receiving unit 114
The first detection unit 115
The second distance sensor 120
The second transmitting unit 122
The second receiving unit 124
The second detection unit 125
The entry / exit determination unit 150
The population management unit 160
The control signal generator 170
Outlet 180

Claims (18)

A first distance sensor provided on one side of a space inlet of the measurement subject and providing a first distance measurement value according to whether the moving body enters or exits;
A second distance sensor provided at a predetermined distance from the first distance sensor in an inner direction of the space to be measured on the first distance sensor installation surface to provide a second distance measurement value according to entry or exit of the body; And
And an input / output determination unit that receives the first distance measurement value and the second distance measurement value and determines whether the moving object enters / exits the space to be measured and the number of the entry / exit body. The method according to claim 1,
Wherein the first distance sensor comprises:
A first transmitter for emitting a first measurement signal;
A first receiving unit for receiving the first measurement signal reflected and returned; And
And a first detection unit for providing a signal for instructing the first transmission unit to emit the first measurement signal and for receiving the first measurement signal received from the first reception unit to derive the first distance measurement value, Entry / exit determination device. 3. The method of claim 2,
Wherein the first measurement signal is composed of a linearity signal and the linearity signal is a signal including any one of infrared rays, laser, and ultrasonic waves. The method according to claim 1,
Wherein the second distance sensor comprises:
A second transmitter for emitting a second measurement signal;
A second receiving unit for receiving the second measurement signal reflected and returned; And
And a second detection unit for providing a signal for instructing the second measurement signal emission to the second transmission unit and receiving the second measurement signal from the second reception unit to derive the second distance measurement value, . 5. The method of claim 4,
Wherein the second measurement signal is composed of a linearity signal, and the linearity signal is a signal including any one of infrared rays, laser, and ultrasonic waves. The method according to claim 1,
The entry /
If the first distance measurement value is less than the predetermined sensing reference value, the first distance sensor detection is performed. If the first distance measurement value is within the first reference value range and the reference value for a predetermined period of time, And the second distance measurement value is determined to be a value within the second initial value range for a predetermined period of time, Judges that the second distance sensor is not detected. The method according to claim 6,
Wherein the first initial value is a first distance measurement value derived when there is no moving body entering or exiting the measurement subject space and the second initial value is a second distance measurement value obtained when there is no moving body entering or leaving the measurement subject space, A device for judging entry / exit of a moving body which is a measured value. The method according to claim 6,
The entry /
Wherein if the first distance sensor is detected and the first distance sensor is not detected, a first pattern in which a change in the first distance measurement value is recorded is generated, And a second pattern in which a change in the second distance measurement value is recorded until it is determined that the second distance sensor is not detected, analyzes the first pattern and the second pattern, Input / output determination device for determining the number of objects. 9. The method of claim 8,
The entry /
When the first pattern is generated prior to the second pattern, a predetermined moving body detection pattern appears n times (n is a natural number) in the first pattern, and when the moving body detection pattern Judges that the n moving bodies have entered the measurement subject space when n times the time has elapsed. 9. The method of claim 8,
The entry /
(N is a natural number) determined in the second pattern when the second pattern is generated earlier than the first pattern, and the moving object detection pattern is detected in the first pattern within a predetermined period of time and judges that n moving bodies have advanced into the measurement subject space when n times appear. 11. The method according to claim 9 or 10,
Wherein the moving object detection pattern indicates a tendency that the value constituting the pattern decreases and then increases. The method according to claim 1,
Further comprising a population management unit for managing the number of living bodies in the measurement subject space by reflecting the determination of the entry / exit state of the entry / exit determination unit by the entry / exit determination unit and the determination of the population number of the entry / exit body. 13. The method of claim 12,
The population management unit,
Wherein if the measurement result of the measurement object space entry / exit state is determined to be an entry, the current opening number is increased by the number of the entry / exit body, and the measurement object space entry / And when the determination result is determined to advance, decrements the current opening number by the number of the entry / exit bodies. The method of claim 12, wherein
Further comprising a control signal generator for generating a control signal for an apparatus operating in the measurement space in at least one of wired and wireless based on the number of the moving body managed by the population management unit . 13. The method of claim 12,
A human body sensing unit installed in the measurement subject space to sense a signal of a human body present in the measurement subject space; And
Further comprising a human body detection determination unit for determining presence or absence of a human body in the measurement object space using the human body signal sensed by the human body sensing unit and providing the presence or absence result to the population management unit,
Wherein the number management unit manages the number of individuals in the measurement subject space based on the determination of the number of the entry and exit bodies of the entry and exit determination unit and the presence or absence of the human body provided by the human body detection determination unit. Receiving a first distance measurement value according to whether the moving body moves in or out through a first distance sensor installed on a side surface of a space inlet to be measured;
Receiving a second distance measurement value according to whether the moving body moves in or out through a first distance sensor installed in an inner space of the measurement object space on the first distance sensor installation surface; And
And determining whether the moving object enters or exits the space to be measured and the number of entrances / exits of the moving object by receiving the first distance measurement value and the second distance measurement value. 17. The method of claim 16,
Further comprising the step of managing the number of living bodies in the measurement subject space by using the result of the step of judging whether or not to enter the measurement subject space and the number of the entry and exit bodies. 17. The method of claim 16,
Determining whether or not a human body exists in the space to be measured; And
Further comprising the step of managing the number of the moving bodies in the measurement target space by using the result of the step of judging whether or not the measurement subject space entry / exit and the entry / exit moving body are determined and the result of the step of judging the presence / absence of the human body in the measurement target space A method for judging entry / exit of a moving body.

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