KR20200086400A - Construction equipment access detection system using dual AP and beacon coverage and method Thereof - Google Patents

Abstract

The present invention provides a construction equipment access detection system using communication coverage between a beacon and a dual AP and a method thereof which increases efficiency in a price aspect. According to an embodiment of the present invention, the construction equipment access detection system using communication coverage between a beacon and a dual AP comprises: a BLE transmitting unit having a beacon and a tag storing tag information including user information; a BLE receiving unit installed on construction equipment and provided with a first AP and a second AP to receive location information and the tag information of the tag from the tag; a control unit to set a danger coverage based on communication reception strength of the first AP and the second AP, measure the distance between the tag and the construction equipment in real time through the location information of the tag received by the first AP and the second AP, determine whether the tag is located within the danger coverage in accordance with whether the first AP and the second AP receive the tag information at the same time, and determine whether the tag located within the danger coverage by the determination is an access-allowed tag within the danger coverage; and an alarm unit which is installed on the construction equipment, and generates an alarm when it is determined that the tag located within the danger coverage is not an access-allowed tag within the danger coverage from the control unit.

Description

Construction equipment access detection system using dual AP and beacon coverage and method Thereof}

The present invention relates to a construction equipment access detection system and method using the communication coverage between the dual AP and the beacon.

In general, construction equipment such as excavators and tractors is easy to observe the front from the cab, but the rear view is difficult due to the structure of the vehicle body or the equipment carried on the vehicle body. Most accidents, such as human accidents and damage to structures, that occur during the operation of construction equipment occur at points that are difficult for the driver to observe.

To prevent this, in recent years, equipment such as infrared cameras, 360 cameras, and UWBs are installed at the rear of the body of the construction equipment to allow the driver in the cab to check the human body or objects behind. However, since these equipments have limitations in terms of cost, the usability of the site is very low, and it is impossible to distinguish humans from obstacles, so an indiscriminate warning alarm is generated due to persons or obstacles allowed access. Most of them were turned off and worked.

Accordingly, development of an access sensing device different from the conventional access sensing device has been required. In Korean Patent Registration No. 10-1914228, real-time location tracking is performed at a construction site based on a sensing module unit that includes an AP transmitter and a beacon sensor that periodically transmits a signal by acquiring harmful or threat information in the field's safety control area. A safety control system was proposed.

However, in the BLE communication of the single AP proposed in the prior art, there is a case where a warning alarm does not occur even if the tag approaches the construction equipment due to the existence of a communication shadow zone. And in BLE communication, even if the tag is far away from the construction equipment, BLE is received and the tag is classified as a risk factor. In addition, in the BLE communication, an error occurred even when the waveform of the radio wave is not set to the same shape, but at the same point.

Accordingly, the present applicant conducted an experiment to measure the communication reception strength for each unit distance of a single AP to verify reliability for BLE communication, and the results of the measurement experiment were derived as shown in [Table 1] and [Table 2]. In the measurement experiment results, the standard deviation was calculated significantly, but the communication reception strength for each unit distance of a single AP could be distinguished. However, since BLE based on a single AP has a fairly large standard deviation, there is a problem that it is difficult to utilize it in construction sites, including equipment narrowing that guarantees safety.

Accordingly, the present applicant proposes a dual AP BLE communication based construction site access detection system and method that can be utilized in construction sites including equipment stenosis by overcoming the limitations of BLE communication of a single AP through the present invention. do.

Republic of Korea Registered Patent No. 10-1914228

The present invention has been devised to solve the above problems, and the present invention increases the efficiency in terms of price compared to conventional access detection equipment, and solves the problem of indiscreet alarm generated by persons or obstacles allowed access. The purpose is to provide a construction equipment access detection system and method using dual AP and beacon communication coverage.

In addition, the present invention can accurately check the user's location, the distance between the construction equipment and the user, and whether the user is located in a danger zone where an accident may occur, and provide communication coverage between the dual AP and the beacon that can inform the user of the dangerous situation The purpose is to provide a system and method for access detection of used construction equipment.

On the other hand, the technical problem to be achieved in the present invention is not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly apparent to those skilled in the art from the following description. Will be understandable.

As a technical means for achieving the above object, a construction equipment access detection system utilizing communication coverage between a dual AP and a beacon according to an embodiment of the present invention is provided with a tag and a beacon in which tag information including user information is stored. BLE transmitter; A BLE receiver installed in the construction equipment, the first AP and the second AP receiving location information and tag information from the tag; And establishing a risk coverage based on the communication reception strength of the first and second APs, and measuring the distance between the construction equipment and the tags in real time through the location information of the tags received by the first and second APs, and the first and second APs. A control unit for determining whether a tag is located in a dangerous coverage according to whether tag information is received at the same time, and determining whether a tag located in the dangerous coverage is a tag allowed to be accessed in the dangerous coverage according to the determination; And an alarm unit that is installed on the construction equipment and generates an alarm when it is determined that the tag located in the danger coverage from the control unit is not a tag allowed to access the danger coverage.

In one embodiment, the control unit stores the communication reception strengths of the first and second APs in an hourly database, and the communication coverage of the first and second APs at the same time among the communication reception strengths of the first and second APs as risk coverage. Set.

In addition, when the first and second APs receive the tag information at a time equal to or higher than the preset reception intensity, it determines that the tag has approached the risk coverage.

In one embodiment, the alarm unit generates an alarm differently for each distance between the construction equipment and the tag.

The construction equipment access detection system using the communication coverage between the dual AP and the beacon according to an embodiment of the present invention, when it is determined that the tag located in the danger coverage from the control unit is not a tag allowed to access the danger coverage, the location information of the tag And a display for outputting tag information.

According to another embodiment of the present invention, a construction equipment access detection system utilizing communication coverage between a dual AP and a beacon includes a BLE transmitter having tags and beacons containing tag information including user information; It is installed in construction equipment and receives location information and tag information in the same way as the 2nd AP and the 2nd AP receiving location information and tag information from the tag, but the antenna is installed to have a relatively large communication coverage than the 2nd AP. BLE receiving unit provided with a first AP; And comparing the communication reception strength of the first AP and the communication reception strength of the second AP, and establishing a risk coverage, and measuring the distance between the construction equipment and the tag in real time through the location information of the tags received by the first and second APs. , A control unit for determining whether the tag is located in the danger coverage according to whether tag information is received from the second AP, and determining whether the tag located in the danger coverage is a tag allowed to access the danger coverage by the determination; And an alarm unit that is installed on the construction equipment and generates an alarm when it is determined that the tag located in the danger coverage from the control unit is not a tag allowed to access the danger coverage.

In another embodiment, the control unit stores the communication reception strengths of the first and second APs in an hourly database, and while the communication reception strengths of the first and second APs are the same time period, the communication reception strengths of the second AP are the first APs. The communication coverage that reverses the communication reception strength of is set as a risk coverage.

In another embodiment, the alarm unit generates an alarm differently for each distance between the construction equipment and the tag.

Construction equipment access detection system using the communication coverage between the dual AP and the beacon according to another embodiment of the present invention, when it is determined that the tag located in the danger coverage from the control unit is not a tag allowed to access within the danger coverage, the location information of the tag And a display for outputting tag information.

A method of detecting access to a construction equipment utilizing communication coverage between a dual AP and a beacon according to an embodiment of the present invention includes: a first step of paying a BLE transmitter equipped with a tag and a beacon to a user; A second step of installing the BLE receiving unit provided with the first AP and the second AP to the construction equipment; A third step of storing tag information including user information in the tag; A fourth step in which the control unit sets the risk coverage based on the communication reception strength of the first and second APs; A fifth step in which the control unit measures the distance between the construction equipment and the tag in real time through the location information of the tags received by the first and second APs; A sixth step in which the control unit determines whether the tag is located in the risk coverage according to whether tag information is received from the first and second APs at the same time; A seventh step in which the control unit determines whether the tag located in the risk coverage is a tag allowed to access in the risk coverage by the determination of the sixth step; And an eighth step of generating an alarm when the alarm unit determines that the tag located in the danger coverage from the control unit is not a tag allowed to access the danger coverage by the determination of the seventh step.

In one embodiment, the fourth step includes the step 4-1 in which the control unit stores the communication reception strengths of the first and second APs in the database by time; And a 4-2 step in which the control unit sets the communication coverage of the first and second APs at the same time among the hourly communication reception intensities as the dangerous coverage.

In one embodiment, in the eighth step, the alarm unit generates an alarm differently for each distance between the construction equipment and the tag.

According to an embodiment of the present invention, a method for detecting access to a construction equipment using communication coverage between a dual AP and a beacon, when the control unit determines that a tag located in the danger coverage is not a tag allowed to access the danger coverage, the display And a ninth step of outputting location information and tag information.

According to another embodiment of the present invention, a method for detecting access to a construction equipment using communication coverage between a dual AP and a beacon includes: a first step of providing a user with a BLE transmitter equipped with a tag and a beacon; A second step of installing the BLE receiving unit provided with the first AP and the second AP installed on the construction equipment; A third step of storing tag information including user information in the tag; A fourth step in which the control unit compares the communication reception strength of the first AP with the communication reception strength of the second AP to establish a risk coverage; A fifth step in which the control unit measures the distance between the construction equipment and the tag in real time through the location information of the tags received by the first and second APs; A sixth step in which the controller determines whether the tag is located in the risk coverage according to whether tag information is received from the second AP; A seventh step in which the control unit determines whether the tag located in the risk coverage is a tag allowed to access in the risk coverage by the determination of the sixth step; And an eighth step of generating an alarm when the alarm unit determines that the tag located in the danger coverage from the control unit is not a tag allowed to access the danger coverage by the determination of the seventh step.

In another embodiment, the fourth step includes the step 4-1 in which the control unit stores the communication reception strengths of the first and second APs in the database by time; And a step 4-2 in which the control unit sets the communication coverage for reversing the communication reception strength of the first AP as the risk coverage while the communication reception strength of the second AP is the same time period among the communication reception strength by time of the first and second APs; It includes.

In another embodiment, in the eighth step, the alarm unit generates an alarm differently for each distance between the construction equipment and the tag.

According to another embodiment of the present invention, a method for detecting access to a construction equipment using communication coverage between a dual AP and a beacon, when the control unit determines that a tag located in the danger coverage from the control unit is not a tag allowed to access the danger coverage, the display And a ninth step of outputting tag location information and tag information.

According to the present invention, it is determined whether a user is located in a danger zone by utilizing communication coverage between a dual AP and a beacon, and an alarm is generated when an unauthorized user is placed in the danger zone, which may occur in a construction site. It is possible to minimize the occurrence of accidents such as human injury or structure damage.

And according to the present invention, by detecting the user's access by utilizing the communication coverage between the dual AP and the beacon, it is possible to increase the efficiency in terms of price compared to the conventional access detection equipment.

In addition, according to the present invention, by generating an alarm when a user who is not allowed access is located in a danger zone, it is possible to solve the problem of indiscriminate continuous alarm occurrence of the conventional access detection equipment and to provide an access detection system applicable in the construction site. .

On the other hand, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. Will be able to.

1 is a block diagram of a construction equipment access detection system utilizing communication coverage between a dual AP and a beacon according to an embodiment of the present invention.
2 is a conceptual diagram of a construction equipment access detection system utilizing communication coverage between a dual AP and a beacon according to an embodiment of the present invention.
3 is a view showing communication coverage of a first AP and a second AP according to an embodiment of the present invention.
4 is a cross-sectional view showing the communication reception intensity of each of the first AP and the second AP output on the display according to an embodiment of the present invention.
5 is a block diagram of a construction equipment access detection system utilizing communication coverage between a dual AP and a beacon according to another embodiment of the present invention.
6 is a diagram illustrating communication coverage between a first AP and a second AP according to another embodiment of the present invention.
7 is a cross-sectional view showing the first and second AP's hourly communication reception intensity output to the display according to another embodiment of the present invention.
Figure 8 is a conventional single AP access detection system output to the display through a comparative experiment and the construction equipment access detection system using the communication coverage between the dual AP and the beacon according to an embodiment of the present invention and another embodiment set the risk This is one side of coverage.
FIG. 9 is a cross-sectional view of a communication reception intensity for each hour of a construction equipment access detection system utilizing communication coverage between a dual AP and a beacon according to an embodiment of the present invention output to a display through a comparative experiment.
FIG. 10 is a cross-sectional view of a communication reception intensity by hour of a construction equipment access detection system utilizing communication coverage between a dual AP and a beacon according to another embodiment of the present invention output to a display through a comparative experiment.
11 is a step flow diagram of a construction equipment access detection method using communication coverage between a dual AP and a beacon according to an embodiment of the present invention.
12 is a detailed step flow chart of step S130 shown in FIG.
13 is a step flow diagram of a construction equipment access detection method using communication coverage between a dual AP and a beacon according to another embodiment of the present invention.
14 is a detailed step flow chart of step S230 shown in FIG. 13.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION The following detailed description, together with the accompanying drawings, is intended to describe exemplary embodiments of the present invention, and is not intended to represent the only embodiments in which the present invention may be practiced. The following detailed description includes specific details to provide a thorough understanding of the present invention. However, one of ordinary skill in the art to which the present invention pertains knows that the present invention may be practiced without these specific details. In addition, in the specification, when a certain part "comprising or including" a certain component, it is possible to further include other components rather than excluding other components unless otherwise specified. Means In addition, in describing embodiments of the present invention, when it is determined that a detailed description of known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to a user's or operator's intention or practice. Therefore, the definition should be made based on the contents throughout this specification.

Hereinafter, with reference to the accompanying drawings will be described in detail a construction equipment access detection system utilizing the communication coverage between the dual AP and the beacon according to an embodiment of the present invention and another embodiment.

Construction equipment access detection system using dual AP and beacon communication coverage

<one embodiment>

A construction equipment access detection system (hereinafter referred to as an'access detection system') that utilizes communication coverage between a dual AP and a beacon according to an embodiment of the present invention will be described with reference to FIG. 1 for reference to the BLE transmitter 100 and the BLE receiver It includes 110, an alarm unit 120, a display 130, a power supply unit 140, and a control unit 150. The configuration of the access detection system is not an essential configuration, and may be implemented as a system including more or less configurations.

The BLE transmitter 100 is configured to transmit information to the BLE receiver 110 and includes a tag 101 and a beacon 103.

The tag 101 means Radio Frequency Identification (RFID) called an electronic tag. The tag 101 is formed of an integrated circuit, and the integrated circuit stores tag information including user information. Here, the user information includes information about the user, such as the user's name, age, gender, height, work field, and working hours.

The beacon 103 will preferably be understood to automatically recognize the BLE receiver 110 located at a short distance and transmit the tag information stored in the tag 101 to the BLE receiver 110. The beacon 103 can transmit tag information to the BLE receiver 110 located at a relatively far distance from NFC, which is a short-range wireless communication with a communication coverage of up to 10 m by setting a communication coverage of up to 50 m. That is, as the beacon 103 is configured, the BLE transmitter 100 has an advantage in that wireless communication can be performed more efficiently than the NFC-based wireless communication device.

Furthermore, although the BLE transmitter 100 is not shown in the drawing, a GPS receiver (not shown) for receiving location information of the BLE transmitter 100 or the tag 101 is configured. The GPS receiver (not shown) coordinates the location information of the BLE transmitter 100 or the tag 101 including latitude and longitude and stores it in the tag 101, and the location information stored in the tag 101 is a beacon ( 103) is transmitted to the BLE receiver 110.

The BLE receiver 110 is configured to receive information from the BLE transmitter 100 and includes a first AP 111 and a second AP 113.

The first AP 111 is installed on the construction equipment 1 and receives tag information and location information from the tag 101 through the beacon 103. Here, AP means an access point or a wireless access point (WAP), and connects wireless devices to a wired device using a related standard using Wi-Fi in a computer network. Pointer to a device that makes it possible. In the present invention, the first AP 111 serves to transmit tag information and location information received from the tag 101 to the controller 150.

The second AP 113 is installed in the construction equipment 1 like the first AP 111 and receives tag information and location information from the tag 101 through the beacon 103. In addition, the second AP 113 serves to transmit tag information and location information received from the tag 101 to the control unit 150.

Meanwhile, in one embodiment, the first AP 111 and the second AP 113 are made of the same specification. However, as illustrated in FIG. 3, the first AP 111 and the second AP 113 are formed of the same specification, but the communication coverage of the first AP communication coverage 111a and the second AP are different. The busy land 113a is formed. This phenomenon occurs in BLE (Bluetooth Low Energy) communication between the first and second APs 111 and 113 and the tag 101.

Although the alarm unit 120 is not shown in the drawing, it is installed on the construction equipment 1, and the user's tag 101 located in the danger coverage 153 from the control unit 150, which will be described later, is allowed to access the danger coverage 153. When it is determined that it is not the tag 101, an alarm is generated by the control of the control unit 150. By generating an alarm, the alarm unit 120 notifies users around the construction site that the tag 101 that is not permitted access is located in the danger coverage 153.

Furthermore, the alarm unit 120 generates different alarms for each distance between the construction equipment 1 and the tag 101 under the control of the control unit 150. For a specific example, the alarm unit 120 gradually approaches the distance between the construction equipment 1 and the unacceptable tag 101 determined from the control unit 150 for each distance interval of at least one of 1m, 5m, and 10m. As the recorded alarm sound increases or the beat increases, an alarm is generated to inform users around the construction site of the unauthorized access to the tag 101.

The display 130 is connected to the control unit 150 to be described later through a server (not shown) and the user's tag 101 located in the risk coverage 153 from the control unit 150 is allowed to access the tag within the risk coverage 153 When it is determined that it is not (101), the location information and tag information of the tag 101 that is not allowed to access are output. The display 130 includes a liquid crystal display (LCD), a thin film transistor liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display (flexible display) , It may be at least one of a 3D display.

The power supply unit 140 receives external power and internal power under the control of the controller 150 and supplies as much power as necessary for operation to the BLE receiver 110, the alarm unit 120, and the display 130. .

The control unit 150 receives the location information and the tag information of the tag 101 from the first AP 111 and the second AP 113, and the communication coverage of the first AP through the received location information of the tag 101 The distance between the construction equipment 1 and the tag 101 is measured in real time within the communication coverage 113a of the (111a) and the second AP.

In addition, the control unit 150 stores the communication reception strength of the first AP 111 and the second AP 113 in a database (not shown) by time. The communication reception strengths of the first AP 111 and the second AP 113 are measured differently for each separation distance from the tag 101, and the separation distance between the first and second APs 111, 113 and the tag 101 is measured. The received communication strength was measured as shown in [Table 1] and [Table 2] below.

0 dBm Street burglar 5m 76.15 10m 81.73 20m 83.32 30m 87.38 40m 88.18

-4 dBm Street burglar 5m 61.01 10m 67.67 20m 73.26 30m 73.96 40m 83.59

In [Table 1] and [Table 2], the power of AP is converted to db scale, and according to the separation distance between AP and tag 101 when 0 dBM in [Table 1] and -4 dBM in [Table 2]. The communication reception strength was measured. Here, it is preferable that the AP is understood as at least one of the first AP 111 and the second AP 113.

As shown in [Table 1] and [Table 2], the communication reception strength for each separation distance between the AP and the tag 101 is not directly proportional, but the relative comparison of the distance between the AP and the tag 101 is based on the communication reception strength. It is possible.

That is, the control unit 150 does not accurately measure the distance between the AP and the tag 101 through BLE communication, but the relative position of the tag 101 based on the communication reception strength of the first and second APs 111 and 113 Track to determine the location of the tag (101).

The communication reception intensity for each hour of the first AP 111 and the second AP 113 is output through the display 130 as shown in one end of FIG. 4.

Further, in the database (not shown), as well as the strength of communication reception by time of the first AP 111 and the second AP 113, tag information that is allowed to access the construction equipment 1 in the risk coverage 153 to be described later Is stored.

On the other hand, the control unit 150 is the same time zone among the communication reception strength of the first AP 111 and the second AP 113 stored in the database (not shown), and the communication coverage 153a or more of the preset reception strength is dangerous coverage (153 ). Here, the risk coverage 153 refers to an area in which only a user of the tag 101 that is allowed access is accessible, and a user who does not have the tag 101 that is allowed access cannot access it. In one embodiment, the preset communication reception strength means a signal strength of 3 or higher, and the communication reception strength means that the distance between the construction equipment 1 and the tag 101 increases as the number increases. . On the other hand, the control unit 150 sets the remaining communication coverage excluding the risk coverage 153 to the safety coverage 151. Here, the safety coverage 151 means an area accessible to all users in the construction site.

In addition, the control unit 150 determines whether the tag 101 is located in the risk coverage 153 according to whether the first AP 111 and the second AP 113 receive tag information at the same time. In detail, when the control unit 150 receives tag information from only one of the first AP 111 and the second AP 113, the tag 101 of the received tag information is within the risk coverage 153 It is judged as inaccessible. At this time, the control unit 150 receives the tag information from the tag 101 in the communication coverage 153a above the preset reception strength only from the tag 101, only one of the first AP 111 and the second AP 113. The other AP determines that the tag 101 has not been accessed within the risk coverage 153 by determining that the tag information has not been received from the tag 101 in the communication coverage 153a having a predetermined reception strength or higher. will be. On the other hand, when the first AP 111 and the second AP 113 receive tag information at the same time, the controller 150 approaches the tag 101 of the received tag information within the risk coverage 153. I judge it. At this time, the control unit 150 determines that the first AP 111 and the second AP 113 have received tag information from the tag 101 in the communication coverage 153a having a predetermined reception strength or higher at the same time, and thus the tag It is determined that 101 is approached within the risk coverage 153.

In addition, when determining that the tag 101 is located in the risk coverage 153, the controller 150 determines whether the tag 101 located in the risk coverage 153 is a tag 101 that is allowed access. Specifically, the controller 150 compares the tag information of the tag 101 located in the danger coverage 153 with the tag information that is allowed to be stored in the database (not shown), and if the same tag information exists, the risk coverage It is determined that the tag 101 located in 153 is a tag 101 that is allowed access. On the other hand, if the same tag information does not exist compared to the access permitted tag information stored in the database (not shown), it is determined that the tag 101 located in the danger cover 153 is a tag 101 that is not permitted access. do.

In addition, the control unit 150 controls the alarm unit 120 when it is determined that the tag 101 located in the danger cover 153 is a tag 101 that is not allowed access. Specifically, when determining that the tag 101, which is not permitted access, is located in the danger coverage 153, the controller 150 generates an alarm for each distance interval between the tag 101, which is not permitted access, and the construction equipment 1. Control it to occur differently.

In addition, when an alarm occurs in the alarm unit 120, the controller 150 causes the display 130 to output the location information and tag information of the tag 101 that is not allowed access.

<Other Examples>

The access detection system according to another embodiment of the present invention will be described with reference to FIG. 5. The BLE transmitting unit 200, the BLE receiving unit 210, the alarm unit 220, the display 230, the power supply unit 240, and the control unit 250 ). The configuration of the access detection system is not an essential configuration, and may be implemented as a system including more or less configurations.

Hereinafter, the BLE transmitting unit 200, the alarm unit 220, the display 230, and the power supply unit 240 are only different in sign, and an embodiment and configuration are duplicated, so detailed description will be omitted, and the BLE receiver ( 210) and the control unit 250 will be described for the access detection system according to another embodiment.

The BLE receiver 210 is configured to receive information from the BLE transmitter 200, and includes an antenna 211, a first AP 213, and a second AP 215.

The antenna 211 is installed in the first AP 213 so that the first AP 213 has a relatively large communication coverage compared to the second AP 215. That is, in another embodiment, the specification difference between the first AP 213 and the second AP 215 is generated by the antenna 211.

The first AP 213 is installed on the construction equipment 1, and an antenna 211 is installed on one side. Accordingly, the first AP 213 forms a communication coverage 213 of the first AP, which is relatively larger than the second AP 215, as illustrated in FIG. 6. Meanwhile, the first AP 213 receives tag information and location information from the tag 201 through the beacon 203, and transmits the received tag information and location information to the controller 150.

The second AP 215 is installed in the construction equipment 1 like the first AP 213, and since the antenna 211 is not installed, as shown in FIG. 6, the communication coverage of the first AP 213a The communication coverage 215a of the relatively small second AP is formed. Meanwhile, the second AP 215 receives tag information and location information from the tag 201 through the beacon 203, and transmits the received tag information and location information to the control unit 250.

The control unit 250 receives the location information and the tag information of the tag 201 from the first AP 213 and the second AP 215, and the communication coverage of the first AP through the received location information of the tag 201 The distance between the construction equipment 1 and the tag 201 is measured in real time within the communication coverage 215a of (213a) and the second AP.

In addition, the control unit 250 stores the communication reception strength of the first AP 213 and the second AP 215 in a database (not shown) by time. The received reception strength for each hour of the first AP 213 and the second AP 215 stored in the database (not shown) is output through the display 230 as shown in one end of FIG. 7. In addition, the communication reception strength of the first AP 213 and the second AP 215 is the communication reception strength for each separation distance between the AP and the tag measured through the measurement experiments of [Table 1] and [Table 2].

On the other hand, in the database (not shown), as well as the communication reception strength of the first AP 213 and the second AP 215, tag information that allows access to the construction equipment 1 is stored in the danger coverage.

The control unit 250 is the same time zone among the communication reception strengths of the first AP 213 and the second AP 215 stored in the database (not shown), and the first AP 213 is the communication reception strength of the second AP 215. ), the communication coverage 251 reversing the communication reception strength is set as a risk coverage. Here, the term “risk coverage” refers to an area in which only users of the tags 201 that are allowed access are accessible, and users who do not have the tags 201 that are allowed access cannot access. In another embodiment, the communication reception strength means that the distance between the construction equipment 1 and the tag 201 gets closer as the number increases. On the other hand, the control unit 250 sets the remaining communication coverage, excluding the risk coverage, to safety coverage. Here, the safety coverage means an area accessible to all users at the construction site.

In addition, the control unit 250 determines whether the tag 201 is located in the danger coverage according to whether tag information is received from the first AP 213 to the second AP 215. Specifically, the control unit 250 reverses the communication reception strength of the first AP 213, which has a larger communication coverage than the second AP 215, and reverses the communication reception strength of the second AP 215, thereby increasing the second AP 215. When receiving tag information in ), it is determined that the tag 201 of the received tag information has approached within the risk coverage. On the other hand, when receiving the tag information from the first AP 213, the controller 250 determines that the tag 201 of the received tag information has not been accessed within the risk coverage.

Further, the control unit 250 controls the alarm unit 220 when it is determined that the tag 201 located in the danger coverage is a tag 201 that is not allowed to access. Specifically, when determining that the tag 201 that is not permitted access is located in the danger coverage, the control unit 250 causes the alarm to be generated differently for each distance interval between the tag 201 which is not permitted access and the construction equipment 1. Control. Here, the control unit 250, as in an embodiment, the closer the distance between the construction equipment 1 and the tag 201 that is not allowed to access at least one distance interval of 1m, 5m, 10m, the alarm unit 220 ) To control the alarm sound to be louder or the beat to be faster to be generated. Through this, the alarm unit 220 informs the users around the construction site that the user of the tag 201 that is not allowed access within the danger coverage has approached.

In addition, when an alarm occurs in the alarm unit 220, the control unit 250 causes the display information to output the location information and tag information of the tag 201 that is not allowed to be accessed.

Hereinafter, with reference to the accompanying drawings, a conventional single AP access detection system, an access detection system of an embodiment of the present invention, and a comparison experiment and a comparison experiment result of the access detection system according to another embodiment will be described.

Comparative and comparative test results of the access detection system

This comparative experiment is an experiment comparing the area of risk coverage set by each access detection system after applying the conventional single AP access detection system, the access detection system of one embodiment, and the access detection system of another embodiment to each construction site. The result of this comparative experiment was output to the display as shown in FIG. 8.

On the other hand, in this comparative experiment, at least one AP of AP19 and AP18 performs tag and BLE communication while moving the tag from the north to the south based on the location of the construction equipment.

In the results of the comparative experiment shown in FIG. 8, the risk coverage of the conventional single AP access detection system is the'①' area having the largest area, and the risk coverage of the access detection system of one embodiment is the risk of the conventional single AP access detection system. The area'②' (red line) having a smaller area than the coverage is, and the risk coverage of the access detection system of another embodiment is the area'③' (blue line) having the smallest area.

The risk coverage of each access detection system is set according to the time-based communication reception strength between at least one AP and a tag among AP19 and AP18. Here, AP19 is the first AP (111, 213), AP18 means the second AP (113, 215). In the access detection system of one embodiment, AP19 and AP18 are the same specifications, and in the access detection system of another embodiment, the antenna 211 is mounted on the AP19, which is the first AP 213. Meanwhile, in the conventional single AP access detection system, only AP18 is configured, and the configuration of AP19 is omitted.

In the access detection system of one embodiment obtained through this comparative experiment, the communication reception intensity by time between AP19 and AP18 and the tag is output on the display as shown in FIG. 9. The'o' mark in FIG. 9 means that the communication reception intensity for each hour is equal to or greater than the preset communication reception intensity 3. In the access detection system of one embodiment, AP19 and AP18 together set communication coverage of a predetermined communication reception strength or higher as risk coverage. In detail, the access detection system of one embodiment sets communication coverage (A) from 14:27:16 to 14:29:15 with'o' in this comparative experiment as risk coverage.

In the access detection system of the other embodiment obtained through this comparative experiment, the communication reception strength for each hour between AP19 and AP18 and the tag is output on the display as shown in FIG. 10. The numerical values shown in FIG. 10 indicate the communication reception strength of AP19 and AP18. In another embodiment, the access detection system sets communication coverage in which the communication reception strength of AP18 reverses the communication reception strength of AP19 as a risk coverage. In detail, the access detection system of another embodiment provides communication coverage (B) from 14:27:26 to 14:28:10 in which the communication reception strength of AP18 reverses the communication reception strength of AP19 in this comparative experiment. Set as risk coverage.

As a result of this comparative experiment, it was derived that the area of risk coverage set by each access detection system is wide in the order of a conventional single AP access detection system, an access detection system of one embodiment, and an access detection system of another embodiment.

The result of this comparative experiment means that the distance between the AP and the tags in the risk coverage can be measured in detail in the order of the access detection system of another embodiment, the access detection system of one embodiment, and the conventional single AP access detection system. However, since the access detection system of another embodiment determines whether the tag approaches the danger coverage based on the communication reception strength of the AP18, an error may occur in measuring the distance between the AP18 and the tag. Due to this error, an access detection system of another embodiment may generate an error in determining whether a tag approaches within the danger coverage.

Accordingly, in a construction site where the distance between the AP and the tag must be accurately measured, the access detection system of one embodiment of measuring the distance from the tag based on the communication reception strength of the dual AP should be applied, and the distance between the AP and the tag must be detailed. It would be desirable to apply an approach detection system of another embodiment at a construction site that must be measured properly.

Hereinafter, with reference to the accompanying drawings will be described in detail a method for detecting access to construction equipment utilizing communication coverage between a dual AP and a beacon according to an embodiment of the present invention and another embodiment.

Construction equipment access detection method using communication coverage between dual AP and beacon

<one embodiment>

First, the BLE transmitter 100 equipped with the tag 101 and the beacon 103 is paid to the user (S100). In step S100, the user who will pay for the BLE transmitter 100 is preferably a user who is allowed access in the risk coverage 153, and the first AP 111 and the second AP 113 are the location of the tag 101. A GPS receiver (not shown) may be further provided to receive the information.

After step S100, the BLE receiver 110 provided with the first AP 111 and the second AP 113 is installed in the construction equipment 1 (S110). In step S110, as well as the first AP 111 and the second AP 113, the alarm unit 120, the display 130, the power supply unit 140, and the control unit 150 may be installed in the construction equipment 1. have.

After step S110, tag information including user information is stored in the tag 101 (S120). Although the step S120 was described as being performed after the step S110, for convenience, the step S100 may be performed immediately after the step.

After step S120, the controller 150 sets the risk coverage based on the communication reception strength of the first AP 111 and the second AP 113 (S130). Looking specifically at step S130, the control unit 150 stores in the database (not shown) for each communication reception intensity time of the first AP 111 and the second AP 113 (S131). After step S131, the controller 150 sets the communication coverage 153a of the first AP 111 and the second AP 113 to be equal to or greater than the preset communication reception strength at the same time period, as the risk coverage 153. Set (S132). Looking specifically at step S132, the control unit 150 of the first AP (111) and the second AP (113) of the hourly communication reception strength of the first AP (111) and the second AP (113) communication reception strength 3 The above-described communication coverage 153a is set as the risk coverage 153.

After step S130, the controller 150 measures the distance between the construction equipment 1 and the tag 101 in real time through the location information of the tag 101 received by the first AP 111 and the second AP 113. (S140).

After step S140, the controller 150 determines whether the tag 101 is located in the risk coverage 153 according to whether tag information is received from the first AP 111 and the second AP 113 at the same time. (S150). Looking specifically at this step S150, the control unit 150 is configured to receive tags from the first AP 111 and the second AP 113 according to whether or not tag information is received at a communication reception intensity equal to or greater than a preset communication reception intensity at the same time. It is determined whether 101) is located in the risk coverage 153 (S151). At this time, if the control unit 150 determines that the tag information has not been received from the communication reception intensity equal to or higher than the preset communication reception intensity at the same time from the first AP 111 and the second AP 113 (S151-NO), The control unit 150 determines that the tag 101 is not located in the danger coverage 153 (S152). Otherwise, if the controller 150 determines that the tag information is received from the first AP 111 and the second AP 113 at a communication reception intensity equal to or higher than a preset communication reception intensity at the same time (S151-YES), The controller 150 determines that the tag 101 is located in the danger coverage 153 (S153).

After step S150, the controller 150 determines whether the tag 101 located in the risk coverage 153 is a tag 101 that is allowed access in the risk coverage 153 by the determination in step S150 (S160). Looking at step S160 in detail, the controller 150 determines whether the tag 101 located in the risk coverage 153 is a tag 101 that is allowed access in the risk coverage 153 (S161). At this time, if the control unit 150 compares the tag information of the tag 101 located in the danger coverage 153 and the access permitted tag information stored in the database (not shown) of the tag 101 located in the risk coverage 153 If it is determined that the tag information is tag information that is not stored in the database (not shown) (S161-NO), the controller 150 determines that the tag 101 is a tag 101 that is not allowed to access within the risk coverage 153 (S162). On the other hand, if the controller 150 compares the tag information of the tag 101 located in the danger coverage 153 with the access permitted tag information stored in the database (not shown), the tag 101 located in the danger coverage 153 If the tag information of is the same as the tag information of one of the tag information stored in the database (not shown) (S161-YES), the control unit 150, the tag 101 is allowed to access the tag within the risk coverage 153 ( 101).

After the step S160, the alarm unit 120 determines that the tag 101 located in the danger coverage 153 from the control unit 150 is not allowed to access the danger coverage 153 from the control unit 150 in step S160. ), an alarm is generated (S170). Looking specifically at step S170, the alarm unit 120 generates an alarm differently according to a distance interval (eg, 1m, 5m, 10m) between the construction equipment 1 and the tag 101 that is not allowed access.

After the step S170, the display 130, the tag 101 located in the risk coverage 153 from the control unit 150 by the determination of the control unit 150 in step S160, the tag 101 is not allowed access to the risk coverage 153 When it is determined that it is, the location information and tag information of the tag 101 that is not allowed to access is output (S180). 8, the step S180 may be performed simultaneously with the step S170. That is, while an alarm is generated in the alarm unit 120, at the same time, location information and tag information of the tag 101 that is not allowed to be accessed on the display 130 may be output.

<Other Examples>

First, the BLE transmitter 200 equipped with the tag 201 and the beacon 203 is paid to the user (S200). In step S200, it is preferable that the user who will pay the BLE transmitter 100 is a user who is allowed access within the risk coverage, and the first AP 213 and the second AP 215 receive location information of the tag 201. To this end, a GPS receiver (not shown) may be further provided.

After step S200, the BLE receiver 210 including the first AP 213 and the second AP 215 including the antenna 211 is installed in the construction equipment 1 (S210). In step S210, the first AP 213, the second AP 215, the alarm unit 220, the display 230, the power supply unit 240, and the control unit 250 may be installed in the construction equipment 1.

After step S210, tag information including user information is stored in the tag 201 (S220). Although the step S220 was described as being performed after the step S210, for convenience, the step S200 may be performed immediately after the step S200.

After step S220, the controller 250 compares the communication reception strengths of the first AP 111 and the second AP 113 to set a risk coverage (S230). Looking specifically at step S230, the control unit 250 stores in the database (not shown) for each communication reception intensity time of the first AP 213 and the second AP 215 (S231). After step S231, the control unit 250 sets the communication coverage 251, which is the same time zone and reverses the communication reception intensity of the first AP 213, as the communication reception intensity of the second AP 215 (S232). ).

After step S230, the control unit 250 measures the distance between the construction equipment 1 and the tag 201 in real time through the location information of the tag 201 received by the first AP 213 and the second AP 215. (S240).

After step S240, the control unit 250 determines whether the tag 201 is located within the risk coverage according to whether the second AP 215 receives tag information at a higher communication reception strength than the first AP 213. (S250). Looking specifically at step S250, the controller 250 determines whether the second AP 215 receives tag information at a communication reception strength relatively higher than that of the first AP 213 (S251). In this case, if it is determined that the control unit 250 has not received the tag information at the communication reception strength relatively higher than the first AP 213 in the second AP 215 (S251-NO), the control unit 250 is configured to perform the tagging. It is determined that 201 is not located in the danger coverage (S252). On the other hand, if it is determined that the control unit 250 has received the tag information at the communication reception strength relatively higher than the first AP 213 in the second AP 215 (S251-YES), the control unit 250 is configured to perform the tagging. It is determined that 201 is located within the risk coverage (S253).

After the step S250, the controller 250 determines whether the tag 201 located in the danger coverage is the tag 201 allowed to be accessed in the danger coverage by the determination in step S250 (S260). Looking specifically at step S260, the controller 250 determines whether the tag 201 located in the risk coverage is a tag 201 allowed to access in the risk coverage (S261). In this case, the controller 250 compares the tag information of the tag 201 located in the danger coverage with the tag information of the tag 201 located in the danger coverage database (not shown) by comparing the tag information of the tag 201 located in the danger coverage. If it is determined that the tag information is not stored in (S261-NO), the controller 250 determines that the tag 201 is a tag 201 that is not allowed to be accessed in the risk coverage (S262). Unlike this, if the controller 250 compares the tag information of the tag 201 located in the danger coverage with the tag information of the tag 201 located in the danger coverage database, the tag information of the tag 201 located in the danger coverage database (not shown) is stored in the database (not shown). If it is determined to be the same as one of the tag information stored in the tag information (not shown) (S261-YES), the controller 250 determines that the tag 201 is a tag 201 that is allowed access in the risk coverage (S263). .

After the step S260, the alarm unit 220 determines that the tag 201 located in the danger coverage from the control unit 250 is a tag 201 that is not allowed to be accessed in the danger coverage by the control unit 250 in step S260. , Generates an alarm (S270). Looking at the step S270 in detail, the alarm unit 220 generates an alarm differently according to a distance interval (for example, 1m, 5m, 10m) between the construction equipment 1 and the tag 201 that is not permitted access.

After the step S270, when the display 230 determines that the tag 201 located in the danger coverage from the control unit 250 is a tag 201 that is not allowed to access the danger coverage by the control unit 250 in step S260, The location information and the tag information of the tag 201 which is not allowed to access are output (S280). Unlike the step shown in FIG. 10, step S280 may be performed simultaneously with step S270. That is, the location information and tag information of the tag 201 which is not allowed to be accessed may be output from the display 230 while an alarm is generated in the alarm unit 220.

The above description of the present invention is for illustration only, and those skilled in the art to which the present invention pertains can understand that the present invention can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and it should be interpreted that all changes or modified forms derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. do.

1: Construction equipment,
100: BLE transmitter,
101: tag,
103: Beacon,
110: BLE receiver,
111: first AP,
111a: communication coverage of the first AP,
113: second AP,
113a: communication coverage of the second AP,
120: alarm unit,
130: display,
140: power supply,
150: control unit,
151: safety coverage,
153: risk coverage,
153a: communication coverage,
200: BLE transmitter,
201: tag,
203: beacon,
210: BLE receiver,
211: antenna,
213: first AP,
213a: Communication coverage of the first AP,
215: second AP,
215a: communication coverage of the second AP,
220: alarm unit,
230: display,
240: power supply,
250: control unit,
251: Communication coverage.

Claims (17)

A BLE transmitting unit provided with a tag and a beacon in which tag information including user information is stored;
A BLE receiver installed in the construction equipment, the first AP and the second AP receiving location information and the tag information from the tag; And
The risk coverage is set based on the communication reception strength of the first and second APs, and the distance between the construction equipment and the tags is measured in real time through the location information of the tags received by the first and second APs, and the 1, 2 It is determined whether the tag is located in the risk coverage according to whether the AP receives tag information at the same time, and whether the tag located in the risk coverage is the access allowed tag in the risk coverage by the determination. A control unit for determining whether or not; And
Dual AP and a beacon, characterized in that it is installed in the construction equipment, and an alarm unit for generating an alarm when it is determined that the tag located in the danger coverage from the control unit is not a tag allowed to access the danger coverage. Construction equipment access detection system using inter-communication coverage. According to claim 1,
The control unit,
It is characterized in that the communication reception strengths of the first and second APs are stored in a database by time, and communication coverage of the first and second APs that is equal to the same time period and higher than a predetermined reception strength is set as the risk coverage. Construction equipment access detection system using communication coverage between dual AP and beacon. According to claim 2,
The control unit,
When the tag information is received by the first and second APs at a time equal to or greater than the preset reception strength, the communication coverage between the dual AP and the beacon is utilized, characterized in that it is determined that the tag has approached the danger coverage. A construction equipment access detection system. According to claim 1,
The alarm unit,
A construction equipment access detection system utilizing communication coverage between a dual AP and a beacon, characterized in that the alarm is generated differently for each distance between the construction equipment and the tag. According to claim 1,
And a display for outputting the location information and the tag information of the tag when it is determined that the tag located in the danger coverage from the control unit is not a tag allowed to be accessed in the danger coverage. Construction equipment access detection system using communication coverage. A BLE transmitting unit provided with a tag and a beacon in which tag information including user information is stored;
It is installed in the construction equipment, and receives the location information and the tag information in the same manner as the second AP and the second AP receiving location information and the tag information from the tag, but has a relatively larger communication coverage than the second AP. A BLE receiver having a first AP having an antenna installed therein; And
The risk coverage is set by comparing the communication reception strength of the first AP and the communication reception strength of the second AP, and the distance between the construction equipment and the tag is determined through location information of the tags received by the first and second APs. Measure in real time, determine whether the tag is located in the risk coverage according to whether the tag information is received from the second AP, and allow the tag located in the risk coverage to access the risk coverage by the determination. A control unit to determine whether the tag is an old one; And
Dual AP and a beacon, characterized in that it is installed in the construction equipment, and an alarm unit for generating an alarm when it is determined that the tag located in the danger coverage from the control unit is not a tag allowed to access the danger coverage. Construction equipment access detection system using inter-communication coverage. The method of claim 6,
The control unit,
The communication reception intensity of the first and second APs is stored in a database by time, and the communication reception intensity of the second AP is the same as that of the first and second APs, and the communication reception intensity of the second AP is received by the communication. Construction equipment access detection system utilizing the communication coverage between the dual AP and the beacon, characterized in that the communication coverage to reverse the strength is set to the risk coverage. The method of claim 6,
The alarm unit,
A construction equipment access detection system utilizing communication coverage between a dual AP and a beacon, characterized in that the alarm is generated differently for each distance between the construction equipment and the tag. The method of claim 6,
And a display for outputting the location information and tag information of the tag when it is determined that the tag located in the danger coverage from the control unit is not a tag allowed to be accessed in the danger coverage. Construction equipment access detection system using communication coverage. A first step of providing a user with a BLE transmitter equipped with a tag and a beacon;
A second step of installing the BLE receiving unit provided with the first AP and the second AP to the construction equipment;
A third step of storing tag information including user information in the tag;
A fourth step in which the control unit sets a risk coverage based on the communication reception strength of the first and second APs;
A fifth step in which the control unit measures the distance between the construction equipment and the tag in real time through location information of a tag received by the first and second APs;
A sixth step in which the control unit determines whether the tag is located in the risk coverage according to whether tag information is received from the first and second APs at the same time;
A seventh step in which the control unit determines whether a tag located in the dangerous coverage is a tag allowed to be accessed in the dangerous coverage by the determination of the sixth step; And
And an eighth step of generating an alarm when the alarm unit determines that the tag located in the danger coverage from the control unit is not a tag allowed to be accessed in the danger coverage by the determination of the seventh step. A method for detecting access to construction equipment using communication coverage between dual APs and beacons. The method of claim 10,
The fourth step,
A step 4-1 in which the control unit stores the communication reception strengths of the first and second APs in a database by time; And
And a step 4-2 in which the control unit sets communication coverage equal to or higher than a preset reception intensity as the same time zone among communication reception intensity by hour of the first and second APs, between the dual AP and the beacon. A method for detecting access to construction equipment using communication coverage. The method of claim 10,
The eighth step,
A method for detecting access to a construction equipment utilizing communication coverage between a dual AP and a beacon, wherein the alarm unit generates the alarm differently for each distance between the construction equipment and the tag. The method of claim 10,
When the control unit determines that the tag located in the risk coverage is not a tag that is allowed access in the risk coverage, the display includes a ninth step of outputting the location information and tag information of the tag; A method of detecting access to construction equipment using communication coverage between AP and beacon. A first step of providing a user with a BLE transmitter equipped with a tag and a beacon;
A second step of installing the BLE receiving unit provided with the first AP and the second AP installed on the construction equipment;
A third step of storing tag information including user information in the tag;
A fourth step in which the control unit compares the communication reception intensity of the first AP with the communication reception intensity of the second AP to establish a risk coverage;
A fifth step in which the control unit measures the distance between the construction equipment and the tag in real time through location information of a tag received by the first and second APs;
A sixth step in which the control unit determines whether the tag is located in the risk coverage according to whether the tag information is received from the second AP;
A seventh step in which the control unit determines whether a tag located in the dangerous coverage is a tag allowed to be accessed in the dangerous coverage by the determination of the sixth step; And
And an eighth step of generating an alarm when the alarm unit determines that the tag located in the danger coverage from the control unit is not a tag allowed to be accessed in the danger coverage by the determination of the seventh step. A method of detecting access to construction equipment using dual AP and beacon communication coverage. The method of claim 14,
The fourth step,
A step 4-1 in which the control unit stores the communication reception strengths of the first and second APs in a database by time; And
The control unit is a fourth time to set the communication coverage of the first and second AP at the same time period, the communication reception strength of the second AP reverses the communication reception strength of the first AP as the risk coverage -2 step; Construction equipment access detection method using the communication coverage between the dual AP and the beacon comprising a. The method of claim 14,
The eighth step,
A method for detecting access to a construction equipment utilizing communication coverage between a dual AP and a beacon, wherein the alarm unit generates the alarm differently for each distance between the construction equipment and the tag. The method of claim 14,
And a step in which the display outputs location information and tag information of the tag when the controller determines that the tag located in the danger coverage is not a tag allowed to be accessed in the danger coverage. A method of detecting access to construction equipment using communication coverage between AP and beacon.

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