KR101259898B1 - Method and apparatus for recognizing state of block - Google Patents

Abstract

The present invention relates to an apparatus and method for recognizing a block state, wherein the electronic device automatically recognizes and provides a loading or unloading state of a block by a transport vehicle capable of carrying a block in a loading space, thereby relying on observation and reporting of an operator. Compared with the prior art, there is an advantage of providing relatively high accuracy and speed.

Large structures, transport vehicles, transporters, loading, loading, unloading, getting off

Description

TECHNICAL AND APPARATUS FOR RECOGNIZING STATE OF BLOCK

The present invention relates to a block state recognition apparatus and method, and more particularly, to a block state recognition apparatus and method for recognizing the loading or unloading state of a block by a transport vehicle capable of carrying the block in the loading space. .

As is well known, in an industrial site for manufacturing a large structure such as a ship, the large structure is divided into several unit sizes and manufactured separately, and the large structure is manufactured by assembling the manufactured unit structure.

The unit structure before being assembled into such a large structure is called a block, and these blocks are stored in a large space such as a yard before assembly and transported to an assembly space by using a transport vehicle such as a transporter during assembly.

In addition, when transferring the block, it is necessary to identify and manage the loading state of loading the block in the loading space of the transport vehicle or the unloading state of getting off the block from the loading space of the transport vehicle.

According to the prior art, the grasp of the transfer state of the block is dependent on the operator's visual observation, and the manager manages the loading or unloading state of the block based on this when the operator reports the observation result.

However, since the conventional technology relies on the observation and reporting of the operator, an error may occur according to the skill of the operator, and there is a problem in terms of speed in identifying and managing the state of the block.

The present invention has been proposed in order to solve the problems of the prior art, a block state recognition apparatus for automatically providing electronically recognize the loading or unloading state of the block by the transport vehicle that can be transported by loading the block in the loading space to provide.

In addition, a block state recognition method providing high accuracy in block state recognition by a block state recognition apparatus is provided.

An apparatus for recognizing a block state according to a first aspect of the present invention includes: an information acquisition unit for obtaining a plurality of state information indicating a loading state of the block by a transport vehicle capable of carrying a block in a loading space; A data processor for classifying information by type and filtering through semantic analysis, and recognizing and recognizing a loaded or unloaded state in the loading space for the block according to a result of comparing the filtered state information with preset reference data. It may include a state recognizer for providing information.

The information obtaining unit may include a first information providing unit configured to receive the unique signal from a signal generator installed in the block and to transmit a unique signal to provide first state information among the state information, and the block on the loading space. A second information providing unit for providing the second state information from the state information by recognizing the presence of a; and a third information providing unit for providing the third state information from the state information by detecting the moving speed of the transport vehicle; Can be.

The signal generator may include a RFID (Radio-Frequency IDentification) tag, and the first information provider may include an RFID reader.

The RFID reader may be installed at the front side of the transport vehicle.

The second information providing unit may include an ultrasonic sensor.

The ultrasonic sensor may be installed in the loading space of the transport vehicle.

The third information providing unit may receive a GPS (Global Positioning System) signal to calculate the moving speed or receive information including the moving speed from the speedometer of the transport vehicle.

The data processing unit may receive the state information for a predetermined time from the information obtaining unit, and classify the data into a classification unit classified by the type divided into the first to third state information, and the state information classified by the type. And a filtering unit configured to perform filtering to remove the invariant value through the semantic analysis comparing the previous value and the current value.

The state recognizer may include a state determiner that determines the loading or unloading state to generate the recognition information, and an information transmitter that transmits the recognition information generated by the state determiner through a communication network.

The state recognizing unit may not receive the first state information after a preset time elapses from receiving the first state information, and the existence of the block is perceived based on the second state information, and the third state When the movement of the transport vehicle is recognized based on the information, it may be recognized as the loaded state of the block.

The state recognizing unit recognizes the stop of the transport vehicle based on the third state information, and after the absence of the block is perceived based on the second state information, the first state information for a predetermined time. When received, it can be recognized as the unloading state of the block.

According to a second aspect of the present invention, there is provided a block state recognition method, comprising: obtaining a plurality of state information indicating a loading state of the block by a transport vehicle capable of carrying a block in a loading space, and classifying the state information by type Classifying and classifying the block as a result of the analysis, and recognizing a loading or loading state of the block in the loading space based on a result of comparing the filtered state information with preset reference data to provide recognition information. It may include a step.

The acquiring of the state information may include receiving the unique signal from a signal generator installed in the block and transmitting a unique signal to receive first state information among the state information, and the block on the loading space. The method may include receiving second state information from the state information by recognizing the presence of the second state, and receiving third state information from the state information by detecting a moving speed of the transport vehicle.

The filtering may include classifying each type of information received by the state information for a predetermined time period and dividing the first to third state information, and a previous value and a current value of the state information classified by the type. The method may include performing filtering to remove an invariant value through the semantic analysis comparing the values.

The providing of the recognition information may include generating the recognition information by determining the loading or unloading state, and transmitting the generated recognition information through a communication network.

The providing of the recognition information may include determining whether reception of the first state information is terminated after a preset time elapses after receiving the first state information, and as a result of the determination, the first state information. Recognizing the existence of the block based on the second state information when reception of the signal has been completed; and recognizing the movement of the transport vehicle based on the third state information when recognizing the existence of the block; Recognizing the movement of the transport vehicle may include the step of recognizing the loaded state of the block.

The providing of the recognition information may include recognizing a stop of the transport vehicle based on the third state information, and recognizing the absence of the block based on the second state information after recognizing the stop. Determining whether the first state information is received for a preset time after the perception of the non-existence; and recognizing it as a loading state of the block when the first state information is received as a result of the determination. It may include.

The first state information may be provided by receiving an RFID tag from the signal generator.

The second state information may be received and provided again after transmitting ultrasonic waves onto the loading space.

The third state information may be received by calculating a moving speed by receiving a GPS signal, or may be provided as information including the moving speed from a speedometer of the transport vehicle.

According to an embodiment of the present invention, the loading or unloading state of a block by a transport vehicle capable of carrying a block in a loading space is automatically recognized and provided electronically.

Thus, there is an effect of providing a relatively high accuracy and speed when compared to the prior art that was dependent on the observation and reporting of the operator.

Advantages and features of the present invention, and methods of achieving the same will become apparent with reference to the embodiments described below in detail in conjunction with 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. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like numbers refer to like elements throughout.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

Combinations of each component block and each step of the flowchart in the accompanying schematic diagram may be performed by computer program instructions. These computer program instructions may be mounted on a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment such that the instructions executed by the processor of the computer or other programmable data processing equipment may be used in each component block or It will create means for performing the functions described in each step of the flowchart. These computer program instructions may be stored in a computer usable or computer readable memory that can be directed to a computer or other programmable data processing equipment to implement functionality in a particular manner, and thus the computer usable or computer readable memory. It is also possible for the instructions stored in to produce an article of manufacture containing instruction means for performing the functions described in each step of each component block or flowchart of the schematic. Computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operating steps may be performed on the computer or other programmable data processing equipment to create a computer-implemented process to create a computer or other programmable data. Instructions that perform processing equipment may also provide steps for performing the functions described in each step of each block and flowchart of the block diagram.

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

1 is a block diagram of a block state recognition apparatus according to an embodiment of the present invention.

As shown in the drawing, the block state recognition apparatus 100 includes an information acquisition unit 110, a data processing unit 120, a state recognition unit 130, and the like.

The information acquisition unit 110 obtains a plurality of state information indicating a loading state of a block by a transport vehicle capable of carrying the block in a loading space and provides the same to the data processing unit 120.

The information obtaining unit 110 includes a first information providing unit 111, a second information providing unit 113, a third information providing unit 115, and the like.

The first information providing unit 111 receives the unique signal from a signal generator (not shown) installed in the block and transmits the unique signal, and provides the first processor to the data processor 120 among the state information. The signal generator may be attached to the block in the form of, for example, an RFID tag, and the first information providing unit 111 may be installed in the transport vehicle in the form of, for example, an RFID reader.

The second information providing unit 113 recognizes the existence of the block in the loading space and provides the second processing unit 120 with the second state information among the state information. The second information providing unit 113 may be installed in the transport vehicle in the form of, for example, an ultrasonic sensor. The second information providing unit 113 may receive the second state information by transmitting the ultrasonic wave to the loading space and receiving the ultrasonic wave again.

The third information providing unit 115 detects a moving speed of the transport vehicle and provides the third state information among the state information to the data processing unit 120. The third information providing unit 115 may, for example, receive a GPS signal to calculate a moving speed of the transport vehicle or install it in the transport vehicle so as to receive information including the moving speed from the speedometer of the transport vehicle.

The data processor 120 classifies the state information provided from the information acquirer 110 by type and filters the semantic analysis through semantic analysis, and then provides the filtered state information to the state recognizer 130.

The data processor 120 includes a data classifier 121, a filter 123, and the like.

The data classifying unit 121 receives the state information for a predetermined time from the information obtaining unit 110, classifies the data into categories divided into first to third state information, and provides them to the filtering unit 123.

The filtering unit 123 removes the invariant value through semantic analysis comparing the previous value and the current value with respect to the state information classified by the data classifying unit 121, and then, the state recognition unit 130 receives the filtered state information. To provide.

The state recognizer 130 recognizes the loaded or unloaded state on the loading space for the block and provides recognition information according to a result of comparing the state information filtered by the data processor 120 with preset reference data.

The state recognizer 130 includes a state determiner 131, an information transmitter 130, and the like.

The state determination unit 131 provides the information transmission unit 133 with the recognition information generated by determining the loading or unloading state of the block.

The information transmitter 133 transmits the recognition information generated by the state determiner 131 through a communication network.

2A and 2B show a transport vehicle provided with a block state recognition apparatus according to an embodiment of the present invention. FIG. 2A is a front view and FIG. 2B is a side view.

According to an embodiment, the first information providing unit 111, which may be configured to include an RFID reader, may be installed on the front surface of the transport vehicle 200, and the second information may be configured to include an ultrasonic sensor. The providing unit 113 is installed in the loading space 210, and the second information providing unit 115 providing the moving speed of the transport vehicle 200 is installed at one side of the driver's seat 220. In the drawing, reference numeral 230 denotes a wheel of the transport vehicle 200.

According to this embodiment, when the first information providing unit 111 is installed on the front surface of the transport vehicle 200, the signal generator provided with the first information providing unit 111 in the block when the block is loaded on the loading space 210. A unique signal can be received from the first information providing unit 111 can no longer receive a unique signal from the signal generator installed in the block when the block is completely loaded, that is, the loaded state. In addition, when the block is loaded in the loading space 210, the second information providing unit 113 may perceive the existence of the block on the loading space 210.

By using the block detection principle, the state recognizer 130 of the block state recognition apparatus 100 receives the first state information of the first information provider 111 and after the preset time elapses, Not received, the presence of the block is perceived based on the second state information of the second information providing unit 113, and based on the third state information of the third information providing unit 115, If the movement is recognized, it is recognized as the block state. In addition, if the stop of the transport vehicle 200 is recognized based on the third state information, and after the absence of the block is perceived based on the second state information, the first state information is received for a preset time, Recognize it as a state.

3 is a flowchart illustrating a process of recognizing a loading state of a block by a block state recognition apparatus according to an exemplary embodiment of the present invention.

As described above, the process of recognizing the loading state of the block may include determining whether the reception of the first state information is terminated after receiving the first state information (S301 to S305) and the determination result of step S305. In step S307 and S309, if the reception of the first state information is completed, the presence of the block is detected based on the second state information. If the presence of the block is detected in step S309, the transport vehicle is based on the third state information. Recognizing the movement of the (S311 and S313), and if the movement of the transport vehicle is recognized in the step S313 includes the step of recognizing the state of loading of the block (S315).

4 is a flowchart illustrating a process of recognizing a loading state of a block by a block state recognition apparatus according to an exemplary embodiment of the present invention.

Recognizing the stop of the transport vehicle based on the third state information (S401 and S403), and after recognizing the stop in step S403, recognizing the absence of the block based on the second state information (S405 and S407). And (S409) determining whether the first state information is received for a preset time after recognizing the non-existence in step S407, and if the first state information is received as a result of the determination of step S409, the state is set to the unloading state of the block. Recognizing step (S411).

A process of recognizing a loaded or unloaded state of a block by a block state recognition apparatus according to an embodiment of the present invention having the above-described configuration will be described with reference to FIGS. 1 to 4.

First, when the transport vehicle 200 moves in the vicinity of a block to transfer a block, the first information providing unit 111 of the information obtaining unit 110 receives a unique signal from a signal generator installed in the block, thereby providing first state information. To the data processor 120.

In addition, the second information providing unit 113 detects whether a block exists in the loading space 210 of the transport vehicle 200 and transmits the second state information to the data processing unit 120.

The third information providing unit 115 receives the GPS signal, calculates a moving speed of the transport vehicle 200, and transmits the third state information to the data processing unit 120. Alternatively, the third information providing unit 115 may receive information including the moving speed of the transport vehicle 200 from the speedometer of the transport vehicle 200 and transmit the third state information to the data processing unit 120.

Here, the information obtaining unit 110 continuously provides the first to third state information in real time.

Then, the data classifying unit 121 of the data processing unit 120 receives the state information for a predetermined time from the information obtaining unit 110 and classifies by the type divided by the first to third state information and the filtering unit 123. To provide.

Subsequently, the filtering unit 123 removes the invariant value through semantic analysis that compares the previous value and the current value with respect to the state information classified by the type of the data classifying unit 121, and then filters the state information that has been filtered. 130). For example, if it is determined that the value has not changed as a result of comparing the present value with the previous value of the first state information, the present value is meaningless and is discarded. If it is determined that the value has not changed as a result of comparing the current value and the previous value of the second state information, the present value is also meaningless since the existence or absence of the block is maintained. Similarly, if it is determined that the value has not changed as a result of comparing the present value of the third state information with the previous value, the meaningless present value is discarded because it is a state of maintaining the stop state or the moving state. In this case, the third state information is information for determining the moving speed of the transport vehicle 200. In fact, only the stopping state or the moving state is sufficient to determine the moving speed, and thus the third state information may be discarded by filtering even when the moving speed information is changed.

Next, the state determining unit 131 of the state recognizing unit 130 loads the block on the loading space 210 with respect to the block according to a result of comparing the state information filtered by the data processing unit 120 with preset reference data. Alternatively, the recognition state is generated to generate recognition information.

When the generation of the recognition information is described in detail, it is determined whether the reception of the first state information is terminated after receiving the first state information (S301) after the predetermined time has elapsed (S303), and as a result of the determination When the reception of the first state information is finished, the second state information is checked (S307) and the presence of the block is perceived (S309). When the presence of the block is detected, the third state information is checked (S311) and the transport vehicle 200 Recognizing the movement of the (S313), and when the movement of the transport vehicle 200 is recognized to recognize the loaded state of the block (S315).

On the contrary, the third state information is checked (S401) to recognize the stop of the transport vehicle 200 (S403), and after the stop is recognized, the second state information is checked (S405) to recognize the absence of the block (S407). In addition, after recognizing the non-existence, it is determined whether the first state information is received for a predetermined time (S409). If the first state information is received as a result of the determination, the first state information is recognized as a loading state of the block (S411).

Finally, the information transmitter 133 of the state recognizer 130 transmits the recognition information generated by the state determiner 131 through the communication network. For example, the identification information generated in step S315 or S411 is reported to the manager of the predetermined destination through wireless communication.

1 is a block diagram of a block state recognition apparatus according to an embodiment of the present invention;

FIG. 2A is a front view of a transport vehicle provided with a block state recognition apparatus according to an embodiment of the present invention, and FIG. 2B is a side view thereof;

3 is a flowchart illustrating a process of recognizing a loading state of a block by a block state recognition apparatus according to an embodiment of the present invention;

4 is a flowchart illustrating a process of recognizing a loading state of a block by a block state recognition apparatus according to an exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110: information acquisition unit 111: first information providing unit

113: second information provider 115: third information provider

120: data processing unit 121: data classification unit

123: filtering unit 130: state recognition unit

131: status determination unit 133: information transmission unit

Claims (20)

delete An information acquiring unit for acquiring a plurality of state information indicative of a loading state of the block by a transport vehicle capable of carrying the block in a loading space; A data processor for classifying the state information by type and filtering through semantic analysis; And a state recognizing unit for recognizing a loading or unloading state on the loading space with respect to the block according to a result of comparing the filtered state information with preset reference data, and providing recognition information. The information acquisition unit, A first information providing unit provided in the block for receiving the unique signal from a signal generator for transmitting a unique signal and providing first status information among the status information; A second information providing unit for recognizing the existence of the block in the loading space and providing second state information among the state information; And a third information providing unit which senses a moving speed of the transport vehicle and provides third state information among the state information. Block state recognition device. The method of claim 2, The signal generator includes an RFID tag, The first information providing unit includes an RFID reader Block state recognition device. The method of claim 3, wherein The RFID reader is installed in the front portion of the transport vehicle Block state recognition device. The method of claim 2, The second information providing unit includes an ultrasonic sensor Block state recognition device. 6. The method of claim 5, The ultrasonic sensor is installed in the loading space of the transport vehicle Block state recognition device. The method of claim 2, The third information providing unit may receive a GPS signal to calculate the moving speed or receive information including the moving speed from a speedometer of the transport vehicle. Block state recognition device. The method of claim 2, The data processing unit, A data classification unit configured to receive the state information for a predetermined time from the information acquisition unit and classify the data into categories classified into the first to third state information; And a filtering unit configured to perform filtering to remove the invariant value through the semantic analysis comparing the previous value and the current value with respect to the state information classified by the type. Block state recognition device. The method of claim 2, The state recognition unit, A state determination unit that determines the loading or unloading state to generate the recognition information; And an information transmitter for transmitting the recognition information generated by the state determination unit through a communication network. Block state recognition device. The method of claim 2, The state recognition unit, The first state information is not received after a preset time elapses from receiving the first state information, and the existence of the block is perceived based on the second state information, and the first state information is received based on the third state information. When the movement of the transport vehicle is recognized to recognize the loading state of the block Block state recognition device. The method of claim 2, The state recognition unit, If the stop of the transport vehicle is recognized based on the third state information, and after the absence of the block is perceived based on the second state information, if the first state information is received for a preset time, Recognized as a loading state Block state recognition device. delete Acquiring a plurality of state information representing a loading state of the block by a transport vehicle capable of carrying the block in a loading space; Classifying the state information by type and filtering through semantic analysis; And recognizing a loading or unloading state on the loading space with respect to the block according to a result of comparing the filtered state information with preset reference data, and providing recognition information. Acquiring the status information, Receiving the unique signal from a signal generator installed in the block and transmitting a unique signal to receive first state information among the state information; Recognizing the existence of the block in the loading space and receiving second state information from the state information; Sensing the movement speed of the transport vehicle and receiving third state information from the state information; Block state recognition method. The method of claim 13, The filtering step, Receiving the status information for a preset time and classifying the data into the types divided into the first to third status information; And performing filtering to remove the invariant value through the semantic analysis comparing the previous value and the current value with respect to the state information classified by the type. Block state recognition method. The method of claim 13, Providing the recognition information, Determining the loading or unloading state to generate the recognition information; Transmitting the generated recognition information through a communication network. Block state recognition method. The method of claim 13, Providing the recognition information, Determining whether the reception of the first state information is terminated after the preset time elapses from receiving the first state information; If the reception of the first state information is terminated as a result of the determination, recognizing the existence of the block based on the second state information; Recognizing the movement of the transport vehicle based on the third state information when recognizing the existence of the block; Recognizing the loading state of the block when the movement of the transport vehicle is recognized; Block state recognition method. The method of claim 13, Providing the recognition information, Recognizing the stop of the transport vehicle based on the third state information; Recognizing the absence of the block based on the second state information after recognizing the stop; Determining whether the first state information is received for a preset time after the perception of the non-existence; Recognizing a loading state of the block when the first state information is received as a result of the determination. Block state recognition method. 18. The method according to claim 16 or 17, The first state information is received by receiving an RFID tag from the signal generator Block state recognition method. 18. The method according to claim 16 or 17, The second state information is received and provided again after transmitting ultrasonic waves onto the loading space. Block state recognition method. 18. The method according to claim 16 or 17, The third state information is received by calculating a moving speed by receiving a GPS signal or received as information including the moving speed from a speedometer of the transport vehicle. Block state recognition method.

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