KR102237871B1 - Fruit logistics system - Google Patents

Abstract

An objective of the present invention is to sort frut boxes by expiration data. The fruit logistics system according to an embodiment of the present invention to solve the objective comprises: a transfer module for transporting a fruit box to a plurality of warehouses or disposal locations; a server which determines a transport location of the fruit box according to classification information based on the self-expiration date, and controls the transfer module; and a communication network through which the transfer module and the server are connected. The transfer module includes: a transfer unit including a plurality of rolls for transporting the fruit box; a sensor for sensing the location of the fruit box; a barcode scanning unit for scanning a barcode included in the fruit box; and a gas collection unit for measuring the concentration of a specific gas leaking from the fruit box. The fruit box includes the barcode and a porous region through which the specific gas can pass on a lower surface in contact with the transfer unit. The server determines the self-expiration date according to an external temperature and the concentration of the specific gas, and generates the classification information according to the section for each day to which the self-expiration date belongs.

Description

Fruit logistics system

The present invention relates to a fruit distribution system, and more particularly, to a fruit distribution system for classifying fruit by setting its own shelf life.

The term logistics is an abbreviation of physical distribution, and is a generic term for functions or activities that effectively transfer products and goods from producers to consumers. Logistics generally refers to several activities such as sorting, packing, unloading, transport, storage and information.

In general, when products are harvested or produced and received in a distribution system, products are sorted in the order in which they were received and delivered to consumers. However, if items such as fruits with a relatively short shelf life are classified in the above-described manner, there is a possibility of adversely affecting the freshness.

In particular, general logistics management systems are computerized by converting PLC data into PC data and collecting the results and checking the results on the web. However, the process of classifying goods is automated in very few sections, or depending on the degree of classification according to product specifications. Stop.

In particular, in the case of items for which the management of the shelf life is important, such as fruits, since the status of the fruits is manually checked and classified, there is a disadvantage in that a large number of manpower is input and the resulting economic loss is large.

In addition, if the fruit is managed using the standard shelf life uniformly set based on the time of harvest, the actual shelf life of the fruit may vary greatly depending on the storage condition of the fruit, making it very difficult to manage the freshness of the fruit. There is a problem to go through.

The problem to be solved by the present invention is to provide a fruit distribution system for classifying fruit boxes according to the expiration date.

In addition, another problem to be solved by the present invention is to provide a fruit distribution system that sets its own shelf life in order to maintain optimum freshness, and classifies fruit boxes according to the above-described self shelf life.

One aspect of the present invention for solving the above problem provides a fruit distribution system.

The fruit distribution system, a transport module for transporting the fruit box to a plurality of warehouses or disposal sites, and a server for determining a transport location of the fruit box according to classification information based on its own shelf life, and controlling the transport module, and And a communication network to which the transfer module and the server are connected, wherein the transfer module includes a transfer unit including a plurality of rolls for carrying the fruit box, a sensor sensing the position of the fruit box, and included in the fruit box A barcode scanning unit that scans a barcode, and a gas collection unit that measures a concentration of a specific gas leaking from the fruit box, wherein the fruit box has a barcode on a lower surface in contact with the transfer unit, and the specific gas can pass. It includes a porous region, and the server determines the self-expiration date according to the external temperature and the concentration of the specific gas, and generates the classification information according to the period for each day to which the self-expires belong.

The specific gas may include ethylene.

The barcode scanning unit and the gas collecting unit may be positioned between the plurality of rolls.

The sensor is located above the transfer unit, but may overlap the barcode scanning unit and the gas collection unit.

The fruit box may further include an opening and closing part through which the fruit can be put and removed from the upper surface.

The barcode scanning unit may come into contact with the barcode of the fruit box.

The specific gas may not pass through an area other than the porous area in the fruit box while the gas collection unit is operating.

Another aspect of the present invention for solving the above problem provides a method of operating a fruit distribution system.

A transport module for transporting the fruit box to a plurality of warehouses or disposal sites; And a server configured to determine a transport location of the fruit box according to classification information based on its own expiration date and control the transport module, wherein the transport module senses the position of the fruit box. And transmitting location information according to the sensed location to the server; Transmitting a command instructing the server to scan a barcode located on a lower surface of the fruit box to the transfer module; Transmitting, by the transfer module, scan information of the scanned barcode to the server; Transmitting, by the server, a command instructing the transfer module to collect ethylene gas; Generating, by the transfer module, a concentration of the ethylene gas through a porous region located on a lower surface of the fruit box, generating concentration data, and transmitting the concentration data to the server; And generating, by the server, information indicating whether a warehouse to be moved or discarded in the classified warehouse based on the concentration data.

The transport module includes a transport unit including a plurality of rolls for transporting the fruit box; A sensor for sensing the position of the fruit box; A barcode scanning unit for scanning the barcode included in the fruit box; And a gas collection unit measuring the concentration of the ethylene gas leaking from the fruit box.

The fruit box includes a bar code and a porous region through which the specific gas can pass, on a lower surface in contact with the transfer unit, and the server determines the shelf life of itself according to an external temperature and a concentration of the specific gas, The classification information is generated according to the section for each day to which the self-expiration date belongs.

Another aspect of the present invention for solving the above problem is to provide a server that controls the operation of a transport module for transporting a fruit box to a plurality of warehouses or disposal sites.

The server, at least one processor; And a memory for storing instructions instructing the at least one processor to perform at least one operation.

The at least one operation may include sensing a location of the fruit box from the transfer module and receiving location information generated according to the sensed location; Transmitting a command instructing to scan a barcode located on a lower surface of the fruit box to the transfer module; Receiving scan information of the barcode from the transfer module; Transmitting a command instructing to collect ethylene gas to the transfer module; Receiving, from the transfer module, the concentration data generated by the transfer module collecting the concentration of the ethylene gas through the porous region located on the lower surface of the fruit box; And generating information indicating whether a warehouse to be moved or discarded in the classified warehouse based on the concentration data.

The transport module includes a transport unit including a plurality of rolls for transporting the fruit box; A sensor for sensing the position of the fruit box; A barcode scanning unit for scanning the barcode included in the fruit box; And a gas collection unit measuring the concentration of the ethylene gas leaking from the fruit box.

The server determines the self-expiration date according to the external temperature and the concentration of the specific gas, and generates the classification information according to the period for each day to which the self-expires belong.

The barcode scanning unit and the gas collecting unit may be positioned between the plurality of rolls.

The sensor is located above the transfer unit, but may overlap the barcode scanning unit and the gas collection unit.

The fruit box may further include an opening and closing part through which the fruit can be put and removed from the upper surface.

The barcode scanning unit may come into contact with the barcode of the fruit box.

The specific gas may not pass through an area other than the porous area in the fruit box while the gas collection unit is operating.

Another aspect of the present invention for solving the above problem is to provide a method of operating a server for controlling the operation of a transport module for transporting a fruit box to a plurality of warehouses or disposal sites.

The method of operating the server includes: sensing a location of the fruit box from the transfer module and receiving location information generated according to the sensed location; Transmitting a command instructing to scan a barcode located on a lower surface of the fruit box to the transfer module; Receiving scan information of the barcode from the transfer module; Transmitting a command instructing to collect ethylene gas to the transfer module; Receiving, from the transfer module, the concentration data generated by the transfer module collecting the concentration of the ethylene gas through the porous region located on the lower surface of the fruit box; And generating information indicating whether a warehouse to be moved or discarded in the classified warehouse based on the concentration data.

The transport module includes a transport unit including a plurality of rolls for transporting the fruit box; A sensor for sensing the position of the fruit box; A barcode scanning unit for scanning the barcode included in the fruit box; And a gas collection unit measuring the concentration of the ethylene gas leaking from the fruit box.

The barcode scanning unit and the gas collecting unit may be positioned between the plurality of rolls.

The sensor is located above the transfer unit, but may overlap the barcode scanning unit and the gas collection unit.

The fruit box may further include an opening and closing part through which the fruit can be put and removed from the upper surface.

The barcode scanning unit may come into contact with the barcode of the fruit box.

The specific gas may not pass through an area other than the porous area in the fruit box while the gas collection unit is operating.

Another aspect of the present invention for solving the above problem provides a fruit distribution system.

The fruit distribution system includes a transport module for transporting the fruit box to a plurality of warehouses or disposal sites; A plurality of robots transporting the fruit box between a sorting waiting warehouse in which the fruit box is stored before sorting and the plurality of warehouses storing the sorted fruit box; And a server that determines a transport location of the fruit box according to classification information based on its own expiration date, and controls the transport module.

The transport module includes a transport unit including a plurality of rolls for transporting the fruit box; A sensor for sensing the position of the fruit box; A barcode scanning unit that scans a barcode included in the fruit box; And a gas collection unit measuring a concentration of a specific gas leaking from the fruit box.

The fruit box includes a barcode and a porous region through which the specific gas can pass on a lower surface in contact with the transfer unit.

The server determines the self-expiration date according to the external temperature and the concentration of the specific gas, and generates the classification information according to the period for each day to which the self-expires belong.

According to an embodiment of the present invention, the fruit distribution system can effectively classify the fruit box regardless of the season, while maintaining the optimum freshness of the fruit.

1 is a block diagram schematically showing the overall configuration of a fruit distribution system according to an embodiment of the present invention.
2 is a perspective view schematically showing a transfer module according to an embodiment of the present invention.
3 is a perspective view schematically showing a fruit box according to an embodiment of the present invention.
4 is a flowchart illustrating a method of transporting a fruit box on a transport module by the fruit distribution system according to an embodiment of the present invention.
5 is a diagram illustrating a hardware configuration of a server according to an embodiment of the present invention.
6 is a diagram illustrating a wireless communication system that can be applied in a communication process according to an embodiment of the present invention.
7 is a diagram illustrating a base station in the wireless communication system according to FIG. 6.
8 is a diagram illustrating a terminal in the wireless communication system according to FIG. 6.
9 is a diagram illustrating a communication interface in the wireless communication system according to FIG. 6.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms different from each other, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to the possessor, and the invention is only defined by the scope of the claims.

Although the first, second, and the like are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are only used to distinguish one component from another component. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical idea of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same or similar reference numerals are used for the same components in the drawings.

1 is a block diagram schematically showing the overall configuration of a fruit distribution system according to an embodiment of the present invention.

The fruit distribution system 1 can sort and store fruits. In one embodiment, the fruit distribution system 1 designates a shelf life for each box containing fruits (hereinafter,'fruit box'), classifies the fruit boxes based on the shelf life, and divides the classified fruit boxes into a plurality of It can be divided into warehouses and stored.

Referring to FIG. 1, the fruit distribution system 1 is a sorting warehouse 11 in which a fruit box is stored before sorting, a sorting warehouse 12 in which sorted fruit boxes are stored, and a sorting warehouse 11 in the sorting waiting warehouse 11. A plurality of transport modules (10) for transporting fruit boxes to 12), a plurality of fruit boxes transporting between the sorting waiting warehouse (11) and the transport module (10), and between the sorting warehouse (12) and the transport module (10) The robots 41 and 42, a server 20 for controlling the transfer module 10, and a communication network 30 to which the transfer module 10 and the server 20 are connected may be included.

Fruits that have been harvested and received may be classified according to varieties, grades, etc. and packaged in a fruit box (refer to '50' in FIG. The packed fruit box may be stored (loaded) in the storage waiting for sorting 11.

In one embodiment, the sorting warehouse 12 may include a plurality of warehouses 12a and 12n. The plurality of warehouses 12a and 12n may be warehouses classified and stored according to the expiration date of each fruit box. For example, the plurality of warehouses 12a and 12n may be classified by expiration date. For example, a fruit box containing fruits with an imminent expiration date (e.g., within a week) is moved to the first warehouse 12a, and a fruit box containing fruit within 2 weeks (e.g., 1 to 2 weeks) has an expiration date. n Can be moved to the warehouse (12n). Depending on the embodiment, a fruit box containing fruits whose shelf life is extremely imminent (eg, within 3 days) is not transported to the sorting warehouse 12 and may be discarded.

The robots 41 and 42 can carry a fruit box. The robots 41 and 42 may be a relatively short distance transportation means. For example, the first robot 41 can transport the fruit boxes loaded in the sorting waiting warehouse 11 to the transport module 10, and the second robot 42 is the fruit boxes placed in the transport module 10. Can be loaded in the sorting warehouse (12). Although not clearly shown, each robot has a vertical axis that can move up and down, a horizontal axis that can perform horizontal movement around the vertical axis, and is placed at the end of the horizontal axis so that it can move freely. It may include a capable head. According to an embodiment, the robots 41 and 42 may be controlled by the server 20.

In one embodiment, the transfer module 10 may be provided in the form of a conveyor belt. For example, the transport module 10 may transport a fruit box at a speed of about 0.5 m/sec to about 1.0 m/sec. The transport module 10 can transport the fruit crates between the sorting waiting warehouse 11 and the sorting warehouse 12. The transport module 10 may be a relatively long-distance vehicle.

In one embodiment, the transfer module 10 may include a barcode scanning unit 101, a gas collection unit 102, a sensor 103 and a transfer unit 110.

The barcode scanning unit 101 may scan a barcode printed or attached to a fruit box. For example, a bar code may include information such as fruit variety, grade, harvest date, and standard shelf life. The barcode may be replaced with another identification means such as a QR code.

The gas collection unit 102 may measure the concentration of a specific gas in the fruit box. For example, the specific gas includes ethylene (C ₂ H ₄ ), and the gas collection unit 102 may measure the concentration of ethylene. The gas collection unit 102 may detect an ethylene component leaking from the fruit box. Ethylene gas is a chemical substance that induces fruit maturation as a component of plant hormones. The gas collection unit 102 may be provided in the form of a concentration meter (eg, a breathalyzer) for a specific gas.

The server 20 may control the transfer module 10 and the robot. The server 20 sets its own shelf life, which is different from the standard shelf life for each fruit box, and sorts the fruit boxes loaded in the sort waiting warehouse 11 based on the set shelf life. 12a, 12n). Here, the standard shelf life may mean a shelf life set by a fruit producer (or harvester) or a shelf life designated for each item by a national agency.

The transport unit 110 performs a function of substantially transporting the fruit box in the moving module 10. A description of the transfer unit 110 will be described later in detail in FIG. 2 and the like.

When the fruit box is transported on the transport unit 110, the sensor 103 may sense whether it passes through a specific position. For example, the sensor may be provided in the form of an infrared sensor, a proximity sensor, or a motion recognition sensor.

In an embodiment, the server 20 may include a classification information generation unit 201 and a classification control unit 202.

The classification information generation unit 201 determines which warehouse in the sorting warehouse 12 the fruit box will be transported through the barcode information scanned from the barcode scanning unit 101 and the ethylene concentration information measured from the gas collection unit 102. Information can be generated.

The classification control unit 202 may control detailed operations of the transfer module 10 and the robots 41 and 42. The sorting control unit 202 controls the first robot 41 to transport the fruit boxes in the sort waiting warehouse 11 to the transport module 10, or the transport module 10 transfers the fruit boxes into the sorting warehouse 12. It is possible to control the transport to each of the warehouses 12a and 12n, or control that the second robot 42 loads the fruit boxes carried by the transfer module 10 into the respective warehouses 12a and 12n.

The server 20 is a computing device capable of communicating with other devices through a wired or wireless network, and is calculated using any one of a central processing unit (CPU), a graphic processing unit (GPU), and a digital signal processor (DSP). It may be a computing device capable of performing an operation, but is not limited thereto.

The communication network 30 is, for example, a wired network such as Ethernet, a wired home network (Power Line Communication), a telephone line communication device and RS-serial communication, or a wireless LAN (WLAN), Bluetooth and NFC depending on the installation environment. It may be variously selected and configured as a wireless network such as, etc. The transfer module 10 and the server 20 may transmit and receive data to and from each other through the communication network 30.

2 is a perspective view schematically showing a transfer module according to an embodiment of the present invention. 3 is a perspective view schematically showing a fruit box according to an embodiment of the present invention.

1 to 3, the transfer module 10 is located inside the transfer unit 110, the transfer unit 110 including a plurality of rolls 111 that are rotatably assembled in contact with the fruit box 50 The barcode scanning unit 101 and the gas collection unit 102, the sensor 103 located above the transfer unit 110, the first display unit 121 to display the information of the fruit box 50, the fruit box 50 It may include a second display unit 122 to display information on the classification of. Depending on the embodiment, the transfer module 10 may further include a third display unit 123 adjacent to the barcode scanning unit 101 and the gas collection unit 102 and in which the display contents of the first display unit 121 are mirrored. May be.

The first to third displays 121 to 123 may be provided in the form of a display device such as an organic light emitting display device, a liquid crystal display device, or a micro light emitting diode (LED) display device. Depending on the embodiment, the first to third displays 121 to 123 may be used as input means.

The transfer unit 110 may move the fruit box 50 using a plurality of rotating rolls 111. The transfer unit 110 may define a moving path of the fruit box 50. The plurality of rolls 111 may be continuously arranged at predetermined intervals from the sorting waiting warehouse 11 to the sorting warehouse 12 or the disposal site. Although not shown, the transfer module 10 may include a motor that provides rotational force to the plurality of rolls 111. The rolls 111 may apply an external force to the fruit box 50 circumscribed while rotating, and thereby move the fruit box 50.

Some of the plurality of rolls 111 may change the moving direction of the fruit box 50. The transfer unit 110 may include at least one node area NA including rolls 111 having a variable moving direction. The node area NA may be an area where at least two movement paths in the transfer unit 110 meet. The rolls 111 of the node area NA may rotate at a predetermined angle, and the moving direction of the fruit box 50 may be changed according to the above-described angle. For example, when the final transport position of the fruit box 50 is determined by the classification information generation unit 201, the classification control unit 202 adjusts the turning angle of the rolls 111 of the node area NA, The movement path can be changed so that the box 50 moves to the respective warehouses 12a, 12n of the sorting warehouse 12 or to the disposal site.

The position of the sorting warehouse 12 in which the fruit box 50 determined by the classification information generating unit 201 is to be loaded may be displayed on the second display unit 122. Depending on the embodiment, the user may manually set the location of the sorting warehouse 12 in which the fruit box 50 is to be loaded through the second display unit 122.

A barcode scanning unit 101 and a gas collection unit 102 may be disposed between the plurality of rolls 111 of the transfer unit 110. That is, the barcode scanning unit 101 and the gas collecting unit 102 are disposed above the transfer unit 110 and may be exposed between the plurality of rolls 111.

Depending on the embodiment, the barcode scanning unit 101 may contact the fruit box 50 to be transported. For example, when the fruit box 50 is transported on the transport unit 110, the lower surface of the fruit box 50 comes into contact with the rolls 111 of the transport unit 110, and likewise, the barcode 52 is attached. The lower surface of the fruit box 50 may come into contact with the barcode scanning unit 101 disposed between the rolls 111. In the process of transporting the fruit box 50 on the transport unit 110, the lower surface of the fruit box 50 to which the barcode 52 is attached and the barcode scanning unit 101 are in contact with each other or have a relatively close distance. Even if the fruit box 50 is transported, it may be possible to scan the barcode 52 relatively accurately. At this time, when the barcode scanning unit 101 scans the barcode 52, a message instructing an operation may be transmitted to the gas collection unit 102.

In one embodiment, the gas collection unit 102 may be disposed adjacent to the barcode scanning unit 101. Although not clearly shown, the gas collection unit 102 has a suction fan at the inlet, and when the fruit box 50 is transported (that is, when receiving a message instructing the operation from the gas collection unit 102), the fruit Gas leaking from the box 50 can be collected. Specifically, the gas collection unit 102 may collect gas by operating the suction fan in synchronization with the fan motor inside the fruit box 50. The gas collection unit 102 may measure the ethylene concentration a plurality of times during t time when the gas collection unit 102 is operated by the server 20 and generate data using the average concentration as a measurement result value. Here, the time t may be a period of overlapping with the gas collection unit 102 of the fruit box 50.

In one embodiment, the sensor 103 may be provided above the transfer unit 110. The sensor 103 may be positioned to overlap with the gas collection unit 102 and the barcode scanning unit 101. That is, when the fruit box 50 passes through the sensor 103, the gas collection unit 102 and the barcode scanning unit 101, the upper part of the fruit box 50 is adjacent to the sensor 103, and the lower part of the fruit ruler May be adjacent to the gas collection unit 102 and the barcode scanning unit 101. In other words, the fruit box 50 may pass between the sensor 103 and the gas collection unit 102 or between the sensor 103 and the barcode scanning unit 101 when transported on the transport unit 110.

The sensor 103 may sense the position of the fruit box 50. For example, when the fruit box 50 enters the lower portion of the sensor 103 in the process of transporting on the transport unit 110, the sensor 103 may sense the position of the fruit box 50. When the fruit box 50 enters the lower portion of the sensor 103, the transfer module 10 may transmit the location information (first position) of the fruit box 50 to the server 20. When the location information (first position) of the fruit box 50 is transmitted from the transfer module 10, the server 20 sends a command to cause the gas collection unit 102 and the barcode scanning unit 101 to operate. 10) can be transmitted. In addition, when the fruit box 50 completely passes through the lower portion of the sensor 103, the transfer module 10 may transmit the location information (second position) of the fruit box 50 to the server 20. When the location information (second position) of the fruit box 50 is transmitted from the transfer module 10, the server 20 transfers a command to stop the operation of the gas collection unit 102 and the barcode scanning unit 101. It can be transmitted to the module 10.

The gas collection unit 102 and the barcode scanning unit 101 may start to operate substantially immediately after the fruit box 50 enters the sensor 103. In addition, the gas collection unit 102 and the barcode scanning unit 101 may stop working substantially immediately after the fruit box 50 passes through the sensor 103.

In one embodiment, the fruit box 50 corresponds to a packaging material capable of bundling a plurality of fruits. For example, the fruit box 50 may include a paper, plastic or metal material. In the present specification, the term box is used for the packaging material, but is not limited thereto. For example, the fruit box 50 may have a hexahedron shape.

In one embodiment, the fruit box 50 may include an opening and closing part 51 through which fruit can be put and removed from the upper surface. In addition, the fruit box 50 may include a barcode 52 attached or printed on the lower surface. In addition, the fruit box 50 may include a porous region 53 through which ethylene gas can pass. The porous region 53 may be manufactured by removing a portion of the lower surface of the fruit box 50 and attaching a porous film to the removed portion.

The lower surface of the fruit box 50 may further include a fan motor (not shown) disposed to overlap the porous region 53. At this time, a shielding film may be disposed between the porous region 53 and the fan motor, and one end of the shielding film may be attached to the rotation axis of the fan motor using an attachment such as a tape. Therefore, in the fruit box 50, when the fan motor (not shown) does not rotate, since the shielding film covers the porous region 53, gas inside the fruit box 50 may not be leaked to the outside. When the fan motor starts to rotate, since the shielding film attached to the rotation shaft of the fan motor is wound on the rotation shaft, gas inside the fruit box 50 starts to flow out through the porous region 53, and the fan motor Is rotated to push air from the inside of the fruit box 50 to the outside of the fruit box 50 through the porous region 53, so that the gas inside the fruit box 50 is very instantaneously discharged out of the fruit box 50 in large quantities. There is an advantage in that it is easy to quickly measure the concentration of gas. In this case, the shielding film may be made of a very thin and robust disposable film of 1 mm or less so as to minimize the influence on the rotation of the fan motor.

According to an embodiment, when ethylene gas moves from the inside of the box to the outside of the box, the concentration of the ethylene gas passing through the porous region 53 is 1000 times the concentration of the ethylene gas when passing through the region other than the porous region 53 It can be more than that. Depending on the embodiment, the ethylene gas may not substantially pass through a region other than the porous region 53 in the fruit box 50 within t hours (time during which the gas collection unit 102 operates).

Depending on the embodiment, the transfer module 10 may include a thermometer (not shown) capable of measuring an external temperature, or the server 20 may obtain weather (temperature) information through the communication network 30.

4 is a flowchart illustrating a method of transporting a fruit box on a transport module by the fruit distribution system according to an embodiment of the present invention.

1 to 4, the method of transporting the fruit box 50 by the fruit distribution system 1 is a fruit box sensing step (S110), a barcode scanning step (S120), an ethylene concentration measuring step (S130), and classification. It may include an information generation step (S140) and a transport step to the classification warehouse (S150). In this specification, it is described that each step is performed sequentially according to a flow chart, but, unless the spirit of the invention is changed, some steps shown to be performed in succession are performed simultaneously, the order of each step is changed, or some steps It is obvious that may be omitted, or another step may be further included between each step.

4 illustrates a process of sorting and transporting the fruit box 50 in the fruit distribution system 1. In FIG. 4, the fruit box 50 is transported from the sorting waiting warehouse 11 to the transport module 10 by the first robot 41 and the fruit box 50 is transported by the second robot 42. In (10), the process of loading into the sorting warehouse (12) was omitted.

The fruit box sensing step (S110) corresponds to a step in which the sensor 103 senses the location of the fruit box 50, and the transfer module 10 transmits the location information of the fruit box 50 to the server 20. . The fruit box 50 transferred from the sorting waiting warehouse 11 to the transfer module 10 can pass through the lower part of the sensor 103 while being moved along the transfer unit 110, and the server 20 is the fruit box 50 Can determine the location of.

In the barcode scanning step S120, the server 20 transmits a command instructing the transfer module 10 (barcode scanning unit 101) to scan the barcode 52 located on the lower surface of the fruit box 50, and The transfer module 10 scans the bar code 52 located on the lower surface of the fruit box 50 through the bar code scanning unit 101 according to the command, and the transfer module 10 retrieves the bar code 52 scan information again. It corresponds to the step of transmitting to the server 20.

Ethylene concentration measurement step (S130), when the server 20 receives the scan information, the server 20 transfer module 10 (gas collection unit 102) is a porous region located on the lower surface of the fruit box 50 Transmits a command instructing to collect ethylene gas through 53, and the transport module 10 is a porous region 53 located on the lower surface of the fruit box 50 through the gas collection unit 102 according to the command. It corresponds to the step of collecting the gas leaking from the plurality of times to generate concentration data, and the transfer module 10 transmitting the ethylene concentration information back to the server 20.

The classification information generation step (S140) corresponds to a step of generating, by the server 20, information on which warehouse in the sorting warehouse 12 the fruit box 50 is to be moved or discarded.

The classification information generation unit 201 of the server 20 may set its own shelf life using standard shelf life, external temperature information, and ethylene concentration information according to the variety of fruit. The classification information generation unit 201 may set its own expiration date according to the following [Equation 1].

Where T is the external temperature, D is a value representing the standard shelf life (hr) according to the fruit variety, E is a value representing the ethylene concentration, α is a weight value (constant) that is individually set according to the fruit variety, and k Is a parameter for predicting ripening of fruit and is determined according to the external temperature (T).

For example, through [Equation 1], the self-expiration date may be determined in units of hours. The classification information generation unit 201 may determine which section the result according to [Equation 1] corresponds to each day (eg, if the self-expiration date (hr) is 48 to 72, the section within 3 days) Judged to be).

Depending on the embodiment, the shelf life of itself may be dependent on the season (external temperature). For example, in summer, its own shelf life may be set to be shorter than the standard shelf life, and in winter, its own shelf life may be set to be longer than the standard shelf life.

The classification information generation unit 201 determines its own expiration date of the fruit box 50, and according to its own expiration date, information on which warehouse in the sorting warehouse 12 the fruit box 50 is transported to and a place of disposal It is possible to generate classification information including information on whether to transport to.

The transporting step to the sorting warehouse (S150) corresponds to a step of controlling the transport module 10 so that the server 20 transports the fruit box 50 to the sorting warehouse 12 or the disposal site according to the sorting information. The server 20 may determine a moving path of the fruit box 50 according to the classification information, and control the angles of the rolls 111 of the node area NA.

5 is a diagram illustrating a hardware configuration of a server according to an embodiment of the present invention.

Referring to FIG. 5, the server 20 includes at least one processor 210; And a memory 220 that stores instructions instructing the at least one processor 210 to perform at least one operation.

Here, the at least one processor 210 means a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to embodiments of the present invention are performed. I can. The memory 220 may be configured with at least one of a volatile storage medium and a nonvolatile storage medium. For example, the memory 220 may be composed of at least one of read only memory (ROM) and random access memory (RAM). The storage device 260 may be at least one of a hard disk drive (HDD) and a solid state drive (SSD).

In addition, the server 20 may include a transceiver 230 for performing communication through a wireless network. In addition, the server 20 may further include an input interface device 240, an output interface device 250, and a storage device 260. Each of the components included in the server 20 may be connected by a bus 270 to communicate with each other.

For example, the server 20 is a communication capable desktop computer, a laptop computer, a notebook, a smart phone, a tablet PC, a mobile phone. , Smart watch, smart glass, e-book reader, portable multimedia player (PMP), portable game console, navigation device, digital camera, digital multimedia broadcasting (DMB) player , A digital audio recorder, a digital audio player, a digital video recorder, a digital video player, a personal digital assistant (PDA), and the like.

Hereinafter, an example of a 5G usage scenario that can be applied in communication between a plurality of transfer modules (which can be interpreted as a kind of terminal) installed in a factory according to an embodiment of the present invention and servers is shown. The 5G usage scenario shown here is merely exemplary, and the technical features of the present invention can be applied to other 5G usage scenarios not shown.

The three main requirements areas of 5G are (1) enhanced mobile broadband (eMBB) area, (2) massive machine type communication (mMTC) area, and (3) ultra-reliability and It includes an ultra-reliable and low latency communications (URLLC) area. Some use cases may require multiple areas for optimization, while others may focus on only one key performance indicator (KPI). 5G supports these various use cases in a flexible and reliable way.

eMBB focuses on the overall improvement of data rate, latency, user density, capacity and coverage of mobile broadband access. eMBB targets a throughput of around 10 Gbps. eMBB goes far beyond basic mobile Internet access and covers rich interactive work, media and entertainment applications in the cloud or augmented reality. Data is one of the key drivers of 5G, and it may not be possible to see dedicated voice services for the first time in the 5G era. In 5G, voice is expected to be processed as an application program simply using the data connection provided by the communication system. The main reason for the increased traffic volume is an increase in content size and an increase in the number of applications requiring high data rates. Streaming services (audio and video), interactive video and mobile Internet connections will become more prevalent as more devices connect to the Internet. Many of these applications require always-on connectivity to push real-time information and notifications to the user. Cloud storage and applications are increasing rapidly on mobile communication platforms, which can be applied to both work and entertainment. Cloud storage is a special use case that drives the growth of uplink data rates. 5G is also used for remote work in the cloud and requires much lower end-to-end latency to maintain a good user experience when tactile interfaces are used. In entertainment, for example, cloud gaming and video streaming are another key factor in increasing the demand for mobile broadband capabilities. Entertainment is essential on smartphones and tablets anywhere, including high mobility environments such as trains, cars and airplanes. Another use case is augmented reality and information retrieval for entertainment. Here, augmented reality requires very low latency and an instantaneous amount of data.

The mMTC is designed to enable communication between a large number of low-cost devices powered by batteries, and is intended to support applications such as smart metering, logistics, field and body sensors. The mMTC targets 10 years of batteries and/or 1 million units per km2. mMTC makes it possible to seamlessly connect embedded sensors in all fields, and is one of the most anticipated 5G use cases. Potentially, IoT devices are expected to reach 20.4 billion by 2020. Industrial IoT is one of the areas where 5G plays a major role in enabling smart cities, asset tracking, smart utilities, agriculture and security infrastructure.

URLLC is ideal for vehicle communication, industrial control, factory automation, teleoperation, smart grid and public safety applications by allowing devices and machines to communicate with high reliability, very low latency and high availability. URLLC aims for a delay of the order of 1ms. URLLC includes new services that will transform the industry through ultra-reliable/low-latency links such as remote control of critical infrastructure and autonomous vehicles. The level of reliability and delay is essential for smart grid control, industrial automation, robotics, and drone control and coordination.

Next, a number of usage examples for each application field to which 5G communication can be applied will be described in more detail.

5G can complement fiber-to-the-home (FTTH) and cable-based broadband (or DOCSIS) by providing streams rated at hundreds of megabits per second to gigabits per second. Such high speed may be required to deliver TVs with resolutions of 4K or higher (6K, 8K and higher) as well as virtual reality (VR) and augmented reality (AR). VR and AR applications involve almost immersive sports events. Certain applications may require special network settings. For example, for VR games, the game company may need to integrate the core server with the network operator's edge network server to minimize latency.

Automotive is expected to be an important new driving force in 5G, with many use cases for mobile communication to vehicles. For example, entertainment for passengers demands high capacity and high mobile broadband at the same time. The reason is that future users will continue to expect high-quality connections, regardless of their location and speed. Another use case in the automotive field is an augmented reality dashboard. The augmented reality contrast board allows the driver to identify objects in the dark on top of what they see through the front window. The augmented reality dashboard superimposes information to inform the driver about the distance and movement of objects. In the future, wireless modules will enable communication between vehicles, exchange of information between the vehicle and the supporting infrastructure, and exchange of information between the vehicle and other connected devices (eg, devices carried by pedestrians). The safety system can lower the risk of accidents by guiding the driver through alternative courses of action to make driving safer. The next step will be a remotely controlled vehicle or an autonomous vehicle. This requires very reliable and very fast communication between different autonomous vehicles and/or between the vehicle and the infrastructure. In the future, self-driving vehicles will perform all driving activities, and drivers will be forced to focus only on traffic anomalies that the vehicle itself cannot identify. The technical requirements of autonomous vehicles require ultra-low latency and ultra-fast reliability to increase traffic safety to levels that cannot be achieved by humans.

Smart cities and smart homes, referred to as smart society, will be embedded with high-density wireless sensor networks. A distributed network of intelligent sensors will identify the conditions for cost and energy efficient maintenance of a city or home. A similar setup can be done for each household. Temperature sensors, window and heating controllers, burglar alarms and appliances are all wirelessly connected. Many of these sensors typically require low data rates, low power and low cost. However, for example, real-time HD video may be required in certain types of devices for surveillance.

The consumption and distribution of energy including heat or gas is highly decentralized, requiring automated control of distributed sensor networks. The smart grid interconnects these sensors using digital information and communication technologies to collect information and act accordingly. This information can include the behavior of suppliers and consumers, enabling smart grids to improve efficiency, reliability, economics, sustainability of production and the distribution of fuels such as electricity in an automated way. The smart grid can also be viewed as another low-latency sensor network.

The health sector has many applications that can benefit from mobile communications. The communication system can support telemedicine providing clinical care from remote locations. This can help reduce barriers to distance and improve access to medical services that are not consistently available in remote rural areas. It is also used to save lives in critical care and emergencies. A wireless sensor network based on mobile communication may provide remote monitoring and sensors for parameters such as heart rate and blood pressure.

Wireless and mobile communications are becoming increasingly important in industrial applications. Wiring is expensive to install and maintain. Thus, the possibility of replacing cables with reconfigurable wireless links is an attractive opportunity for many industries. However, achieving this requires that the wireless connection operates with a delay, reliability and capacity similar to that of the cable, and its management is simplified. Low latency and very low error probability are new requirements that need to be connected to 5G.

Logistics and cargo tracking is an important use case for mobile communications that enables tracking of inventory and packages from anywhere using a location-based information system. Logistics and freight tracking use cases typically require low data rates, but require a wide range and reliable location information.

In addition, embodiments according to the present invention may be performed to support eXtended Reality (XR). Augmented reality collectively refers to virtual reality (VR), augmented reality (AR), and mixed reality (MR). VR technology provides only CG images of real-world objects or backgrounds, AR technology provides virtually created CG images on top of real object images, and MR technology is a computer that mixes and combines virtual objects in the real world. It's a graphic technology.

MR technology is similar to AR technology in that it shows real and virtual objects together. However, in AR technology, a virtual object is used in a form that complements a real object, whereas in MR technology, there is a difference in that a virtual object and a real object are used with equal characteristics.

XR technology can be applied to HMD (Head-Mount Display), HUD (Head-Up Display), mobile phones, tablet PCs, laptops, desktops, TVs, digital signage, etc. It can be called as. The XR device may comprise the first device and/or the second device described above.

The XR device can be connected to various services through a communication network based on 5G communication or the like.

6 is a diagram illustrating a wireless communication system that can be applied in a communication process according to an embodiment of the present invention. 7 is a diagram illustrating a base station in the wireless communication system according to FIG. 6. 8 is a diagram illustrating a terminal in the wireless communication system according to FIG. 6. 9 is a diagram illustrating a communication interface in the wireless communication system according to FIG. 6.

Hereinafter, an example of a wireless communication network system supporting communication between a server and a plurality of transfer modules (hereinafter, may be referred to as terminals) will be described in detail. In the following description, a first node (device) may be an anchor/donor node or a centralized unit (CU) of an anchor/donor node, and a second node (device) is a distributed unit (DU) of an anchor/donor node or a relay node. Can be

In a wireless communication system, a base station (BS), a terminal, a server, and the like may be included as part of a node using a wireless channel.

The base station is a network infrastructure that provides wireless access to terminals and terminals. The base station has coverage defined by a predetermined geographic area according to the distance over which signals can be transmitted.

The base station is similar to the "base station" "access point (AP)", "enodeb (eNodeb, eNB)", "5th generation (5G) node", "wireless point", " It may be referred to as a "transmission/reception point (TRP)".

The base station, the terminal, and the terminal may transmit and receive wireless signals in a millimeter wave (mmWave) band (eg, 28GHz, 30GHz, 38GHz, 60GHz). In this case, the base station, the terminal, and the terminal may perform beamforming to improve channel gain. Beamforming may include transmit beamforming and receive beamforming. That is, the base station, the terminal, and the terminal may give directivity to the transmitted signal and the received signal. To this end, the base station, the terminal, and the terminal may select a serving beam through a beam discovery procedure or a beam management procedure. Thereafter, communication may be performed using a resource having a quasi-co-located relationship with a resource carrying a serving beam.

The first antenna port and the second antenna port are considered to be in a quasi-coordinate position when the large-scale property of the channel through which the symbol of the first antenna port is transmitted can be inferred from the channel through which the symbol of the second antenna port is transmitted. Large-scale properties may include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial Rx parameters.

Hereinafter, a base station is illustrated in the above-described wireless communication system. The terms "-module", "-unit", or "-er" used below may mean a unit that processes at least one function or operation, and may refer to hardware, software, or hardware and software. It can be implemented in a combination of.

The base station may include a wireless communication interface, a backhaul communication interface, a storage unit and a controller.

The wireless communication interface performs a function of transmitting and receiving signals through a wireless channel. For example, the wireless communication interface may perform a conversion function between a baseband signal and a bit stream according to the physical layer standard of the system. For example, in data transmission, a wireless communication interface encodes and modulates a transport bit stream to generate a composite symbol. In addition, when receiving data, the wireless communication interface reconstructs the received bit stream by demodulating and decoding the baseband signal.

The wireless communication interface performs a function of transmitting and receiving signals through a wireless channel. For example, the wireless communication interface may perform a conversion function between a baseband signal and a bit stream according to the physical layer standard of the system. For example, in data transmission, a wireless communication interface encodes and modulates a transport bit stream to generate a composite symbol. In addition, when receiving data, the wireless communication interface reconstructs the received bit stream by demodulating and decoding the baseband signal.

In addition, the wireless communication interface up-converts a baseband signal into a radio frequency (RF) band signal, transmits the converted signal through an antenna, and down-converts an RF band signal received through the antenna into a baseband signal. To this end, the wireless communication interface includes a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, a digital-to-analog converter (DAC), It may include an analog-to-digital converter (ADC), and the like. In addition, the wireless communication interface may include a plurality of transmission/reception paths. In addition, the wireless communication interface may include at least one antenna array including a plurality of antenna elements.

In terms of hardware, the wireless communication interface may include a digital unit and an analog unit, and the analog unit may include a plurality of sub-units according to operating power, operating frequency, and the like. The digital unit may be implemented with at least one processor (eg, a digital signal processor (DSP)).

The wireless communication interface transmits and receives signals as described above. Thus, the wireless communication interface may be referred to as “transmitter”, “receiver” or “transceiver”. In addition, in the following description, transmission/reception performed through a wireless channel may be used as a meaning including processing performed in a wireless communication interface as described above.

The backhaul communication interface provides an interface for performing communication with other nodes in the network. That is, the backhaul communication interface converts a bit stream transmitted to another node, and for example, a core network from another access node, another base station, an upper node, or a base station is a physical signal, and a physical signal received from another node is converted to a bit stream. Convert to a stream.

The storage unit stores data such as basic programs, applications, and setting information for operation of the base station. The storage unit may include a volatile memory, a nonvolatile memory, or a combination of a volatile memory and a nonvolatile memory.

The controller controls the overall operation of the base station. For example, the controller transmits and receives signals through a wireless communication interface or a backhaul communication interface. In addition, the controller writes data to the storage and reads the recorded data. The controller can perform the function of the protocol stack required by the communication standard. According to another implementation, the protocol stack may be included in the wireless communication interface. To this end, the controller may include at least one processor.

According to an embodiment, the controller may control the base station to perform the operation according to the embodiment of the present invention.

According to various embodiments, a donor node of a wireless communication system includes at least one processor, a transceiver operatively coupled to the at least one processor, and a plurality of radio bearers for a terminal accessing the relay node. Configured to send a first message including first information related to the donor node about to a relay node; Receiving a second message including second information related to the relay node regarding a plurality of radio bearers for the terminal from the relay node; Data about the terminal can be transmitted to the relay node. Data may be transmitted to the terminal through a plurality of radio bearers based on the first information and the second information.

According to various embodiments, a radio bearer among a plurality of radio bearers may integrate a plurality of radio bearers. The at least one processor is also configured to determine a radio bearer for a terminal accessing the relay node and multiple radio bearers unified by the radio bearer; Alternatively, a radio bearer for a terminal accessing a relay node may be determined.

According to various embodiments, the first message may include one or more of the following: identification of a terminal accessing the relay node; Display information indicating the type of terminal connected to the relay node; Information on a radio bearer of a terminal accessing the relay node; Information on a radio bearer delivered by a terminal accessing the relay node; Information on a tunnel established for a radio bearer between a donor node and a relay node; Information on integrated multiple radio bearers; Radio bearer mapping information; Information on the address of the donor node side; Information on the address of the relay node; Indication information corresponding to a radio bearer of a terminal accessing the relay node; Indication information indicating a relay node to allocate a new address to a radio bearer for a terminal accessing the relay node; A list of address information that cannot be used by a relay node transmitting data of a radio bearer of a terminal accessing the relay node; And information related to the security configuration.

According to various embodiments, the second message may include one or more of the following: identification of a terminal accessing the relay node; Information on radio bearers approved by the relay node; Information on radio bearers not approved by the relay node; Information on radio bearers partially approved by the relay node; Radio bearer mapping information; Configuration information of a terminal connected to the relay node generated by the relay node; Information on the address of the relay node; And information related to the security configuration.

According to various embodiments, the second message may further include information on integrated multiple radio bearers.

According to various embodiments, the donor node may include a central unit of the donor node, and the relay node may include a distribution unit of the donor node.

According to various embodiments, a relay node of a wireless communication system includes at least one processor, a transceiver operably coupled to the at least one processor, and a plurality of terminals for accessing the relay node from the donor node. Configured to receive a first message comprising first information related to a donor node about a radio bearer of the <RTI ID=0.0> Transmitting a second message including second information related to a relay node about a plurality of radio bearers for the terminal to the donor node; Data about the terminal may be received from the donor node. Data may be transmitted to the terminal through a plurality of radio bearers based on the first information and the second information.

According to various embodiments, a radio bearer among a plurality of radio bearers may integrate a plurality of radio bearers. The at least one processor is also configured to determine a radio bearer for a terminal accessing the relay node and multiple radio bearers unified by the radio bearer; Alternatively, it is possible to determine multiple radio bearers integrated by the radio bearer.

According to various embodiments, the first message may include one or more of the following: identification of a terminal accessing the relay node; Display information indicating the type of terminal connected to the relay node; Information on a radio bearer of a terminal accessing the relay node; Information on a radio bearer delivered by a terminal accessing the relay node; Information on a tunnel established for a radio bearer between a donor node and a relay node; Information on integrated multiple radio bearers; Radio bearer mapping information; Information on the address of the donor node side; Information on the address of the relay node; Indication information corresponding to a radio bearer of a terminal accessing the relay node; Indication information indicating a relay node to allocate a new address to a radio bearer for a terminal accessing the relay node; A list of address information that cannot be used by a relay node transmitting data of a radio bearer of a terminal accessing the relay node; And information related to the security configuration.

According to various embodiments, the second message may include one or more of the following: identification of a terminal accessing the relay node; Information on radio bearers approved by the relay node; Information on radio bearers not approved by the relay node; Information on radio bearers partially approved by the relay node; Radio bearer mapping information; Configuration information of a terminal connected to the relay node generated by the relay node; Information on the address of the relay node; And information related to the security configuration.

According to various embodiments, the second message may further include information on integrated multiple radio bearers.

According to various embodiments, the donor node may include a central unit of the donor node, and the relay node may include a distribution unit of the donor node.

Hereinafter, components of a terminal in the above-described wireless communication system are shown. The components of the terminal described below are components of a general-purpose terminal supported by the wireless communication system, and may be merged or integrated with the components of the terminal according to the above descriptions. It can be interpreted that the content described with reference is applied first. The terms "-module", "-unit" or "-er" used below may mean a unit that processes at least one function.

The terminal includes a communication interface, a storage unit and a controller.

The communication interface performs a function of transmitting and receiving signals through a wireless channel. For example, the communication interface performs a conversion function between a baseband signal and a bit stream according to the physical layer standard of the system. For example, in data transmission, a communication interface encodes and modulates a transport bit stream to generate a composite symbol. In addition, when receiving data, the communication interface reconstructs the received bit stream by demodulating and decoding the baseband signal. In addition, the communication interface up-converts the baseband signal into an RF band signal, transmits the converted signal through an antenna, and down-converts the RF band signal received through the antenna into a baseband signal. For example, the communication interface includes a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, and a digital-to-analog converter (DAC). , An analog-to-digital converter (ADC), and the like.

In addition, the communication interface may include a plurality of transmission/reception paths. Further, the communication interface may include at least one antenna array including a plurality of antenna elements. On the hardware side, the wireless communication interface may include a digital circuit and an analog circuit (eg, radio frequency integrated circuit, RFIC). The digital circuit may be implemented with at least one processor (eg, DSP). The communication interface may include a plurality of RF chains. The communication interface may perform beamforming.

The communication interface transmits and receives signals as described above. Thus, the communication interface may be referred to as “transmitter”, “receiver” or “transceiver”. In addition, in the following description, transmission/reception performed through a wireless channel may be used to include processing performed in a communication interface as described above.

The storage unit stores data such as basic programs, applications, and setting information for the operation of the terminal. The storage unit may include a volatile memory, a nonvolatile memory, or a combination of a volatile memory and a nonvolatile memory. In addition, the storage unit provides the stored data according to the request of the controller.

The controller controls the overall operation of the terminal. For example, the controller transmits and receives signals through a communication interface. In addition, the controller writes data to the storage and reads the recorded data. The controller can perform the function of the protocol stack required by the communication standard. According to another implementation, the protocol stack may be included in the communication interface. To this end, the controller may include at least one processor or microprocessor, or may reproduce a part of the processor. In addition, a part of the communication interface or controller may be referred to as a communication processor (CP).

According to an embodiment of the present invention, a controller may control a terminal to perform an operation according to an embodiment of the present invention.

Hereinafter, a communication interface in a wireless communication system is illustrated.

The communication interface includes an encoding and modulation circuit, a digital beamforming circuit, a plurality of transmission paths, and an analog beamforming circuit.

The encoding and modulation circuit performs channel encoding. At least one of a low-density parity check (LDPC) code, a convolution code, and a polar code may be used for channel encoding. The encoding and modulation circuit generates a modulation symbol by performing constellation mapping.

The digital beamforming circuit performs beamforming on a digital signal (eg, a modulation symbol). To this end, the digital beamforming circuit multiplexes the modulation symbols by the beamforming weighting value. The beamforming weight may be used to change the size and phrase of the signal, and may be referred to as “precoding matrix” or “precoder”. The digital beamforming circuit outputs the digitally beamformed modulation symbols through a plurality of transmission paths. In this case, a modulation symbol may be multiplexed according to a multiple input multiple output (MIMO) transmission scheme or the same modulation symbol may be provided to a plurality of transmission paths.

The plurality of transmission paths convert the digital beamformed digital signal into an analog signal. To this end, each of the plurality of transmission paths may include an inverse fast fourier transform (IFFT) calculation unit, a cyclic prefix (CP) insertion unit, a DAC, and an up-conversion unit. The CP insertion unit is for an orthogonal frequency division multiplexing (OFDM) scheme and may be omitted when applying another physical layer scheme (eg, a filter bank multi-carrier: FBMC). That is, a plurality of transmission paths provide independent signal processing processes for a plurality of streams generated through digital beamforming. However, depending on the implementation, some elements of the plurality of transmission paths may be used in common.

The analog beamforming circuit performs beamforming on an analog signal. To this end, the digital beamforming circuit multiplexes the analog signal by the beamforming weighting value. The beamformed weight is used to change the size and text of the signal. More specifically, according to a connection structure between a plurality of transmission paths and antennas, the analog beamforming circuit may be configured in various ways. For example, each of the plurality of transmission paths may be connected to one antenna array. In another example, a plurality of transmission paths may be connected to one antenna array. In another example, a plurality of transmission paths may be adaptively connected to one antenna array or may be connected to two or more antenna arrays.

In the above, embodiments according to the technical idea of the present invention have been described with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains, It will be appreciated that it can be implemented with. It should be understood that the embodiments described above are illustrative in all respects and not limiting.

1: Fruit Logistics System 10: Transfer Module
11: Sorting Waiting Warehouse 12: Sorting Warehouse
20: server 30: communication network
50: fruit box 51: opening and closing part
52: barcode 53: porous area
101: barcode scanning unit 102: gas collection unit
103: sensor 110: transfer unit
111: roll 121: first display unit
122: second display unit 123: third display unit
201: classification information generation unit 202: classification control unit
210: processor 220: memory
230: transmitting and receiving device 240: input interface device
250: output interface device 260: storage device
270: bus NA: node area

Claims (12)

Conveyor transport module for transporting the fruit box to a plurality of warehouses or disposal sites; And
Including a server that determines the transport location of the fruit box according to the classification information based on its own expiration date, and controls the conveyor transport module,
The conveyor transfer module,
A transport unit including a plurality of rolls for transporting the fruit box;
A sensor for sensing the position of the fruit box;
A barcode scanning unit that scans a barcode included in the fruit box; And
Including a gas collection unit for measuring the concentration of the specific gas leaking from the fruit box,
The fruit box includes a bar code and a porous region through which the specific gas can pass, on a lower surface in contact with the transfer unit,
The server determines the self-expiration date according to the external temperature and the concentration of the specific gas, and generates the classification information according to the period for each day to which the self-expires belong,
The specific gas contains ethylene,
The self-expiration date is determined according to the following equation,

In the above equation, T is the external temperature, D is a variable representing the standard shelf life (hr) according to the fruit variety, E is a variable representing the concentration of ethylene, and α is individually set according to the fruit variety. A weight, and k is a parameter for predicting ripening of fruit, which is determined according to the external temperature. delete The method of claim 1,
The barcode scanning unit and the gas collection unit are located between the plurality of rolls, fruit distribution system. The method of claim 3,
The sensor is located above the transfer unit, but overlaps with the barcode scanning unit and the gas collection unit, fruit distribution system. The method of claim 1,
The fruit box further comprises an opening and closing unit for putting and removing fruit on the upper surface. The method of claim 1,
The barcode scanning unit is in contact with the barcode of the fruit box, fruit distribution system. The method of claim 1,
The specific gas does not pass through an area other than the porous area in the fruit box while the gas collection unit is operating. Conveyor transport module for transporting the fruit box to a plurality of warehouses or disposal sites; And
A method of operating a fruit distribution system, including a server that determines a transport location of the fruit box according to classification information based on its own shelf life, and controls the conveyor transport module,
Sensing, by the conveyor transfer module, the location of the fruit box and transmitting location information according to the sensed location to the server;
Transmitting a command instructing the server to scan a barcode located on a lower surface of the fruit box to the conveyor transfer module;
Transmitting, by the conveyor transfer module, scan information of the scanned barcode to the server;
Transmitting, by the server, a command instructing the conveyor transfer module to collect ethylene gas;
Generating, by the conveyor transfer module, a concentration of the ethylene gas through a porous region located on a lower surface of the fruit box, generating concentration data, and transmitting the concentration data to the server; And
The server determining the own shelf life based on the concentration data, and generating information indicating whether a warehouse to be moved or discarded in the classified warehouse according to the self shelf life,
The self-expiration date is determined according to the following equation,

In the above equation, T is the external temperature, D is a variable representing the standard shelf life (hr) according to the fruit variety, E is a variable representing the concentration of the ethylene gas, and α is individually set according to the fruit variety. A weight, and k is a parameter for predicting ripening of fruit, which is determined according to the external temperature. In claim 8,
The conveyor transfer module,
A transport unit including a plurality of rolls for transporting the fruit box;
A sensor for sensing the position of the fruit box;
A barcode scanning unit for scanning the barcode included in the fruit box; And
A method of operating a fruit distribution system comprising a gas collection unit for measuring the concentration of the ethylene gas leaking from the fruit box. As a server that controls the operation of the conveyor transport module for transporting fruit boxes to a plurality of warehouses or disposal sites,
At least one processor; And
Including a memory (memory) for storing instructions (instructions) instructing the at least one processor to perform at least one operation,
The at least one operation,
Sensing the location of the fruit box from the conveyor transfer module and receiving location information generated according to the sensed location;
Transmitting a command instructing to scan a barcode located on a lower surface of the fruit box to the conveyor transfer module;
Receiving scan information of the barcode from the conveyor transfer module;
Transmitting a command instructing to collect ethylene gas to the conveyor transfer module;
Receiving, by the conveyor transfer module, concentration data generated by collecting the concentration of the ethylene gas through a porous region located on a lower surface of the fruit box from the conveyor transfer module; And
Determining an own shelf life based on the concentration data, and generating information indicating whether a warehouse to be moved or discarded in the classified warehouse according to the own shelf life,
The self-expiration date is determined according to the following equation,

In the above equation, T is the external temperature, D is a variable representing the standard shelf life (hr) according to the fruit variety, E is a variable representing the concentration of the ethylene gas, and α is individually set according to the fruit variety. A weight, and k is a parameter for predicting ripening of fruit and is determined according to the external temperature. A method of operating a server that controls the operation of a conveyor transfer module that transports fruit boxes to a plurality of warehouses or disposal sites,
Sensing the location of the fruit box from the conveyor transfer module and receiving location information generated according to the sensed location;
Transmitting a command instructing to scan a barcode located on a lower surface of the fruit box to the conveyor transfer module;
Receiving scan information of the barcode from the conveyor transfer module;
Transmitting a command instructing to collect ethylene gas to the conveyor transfer module;
Receiving, by the conveyor transfer module, concentration data generated by collecting the concentration of the ethylene gas through a porous region located on a lower surface of the fruit box from the conveyor transfer module; And
Determining an own shelf life based on the concentration data, and generating information indicating whether a warehouse to be moved or discarded in the classified warehouse according to the own shelf life,
The self-expiration date is determined according to the following equation,

In the above equation, T is the external temperature, D is a variable representing the standard shelf life (hr) according to the fruit variety, E is a variable representing the concentration of the ethylene gas, and α is individually set according to the fruit variety. A weight, and k is a parameter for predicting ripening of fruit and is determined according to the external temperature. Conveyor transport module for transporting the fruit box to a plurality of warehouses or disposal sites;
A plurality of robots transporting the fruit box between a sorting waiting warehouse in which the fruit box is stored before sorting and the plurality of warehouses storing the sorted fruit box; And
Including a server that determines the transport location of the fruit box according to the classification information based on its own expiration date, and controls the conveyor transport module,
The conveyor transfer module,
A transport unit including a plurality of rolls for transporting the fruit box;
A sensor for sensing the position of the fruit box;
A barcode scanning unit that scans a barcode included in the fruit box; And
Including a gas collection unit for measuring the concentration of the specific gas leaking from the fruit box,
The fruit box includes a bar code and a porous region through which the specific gas can pass, on a lower surface in contact with the transfer unit,
The server determines the own shelf life according to the external temperature and the concentration of the specific gas, and generates the classification information according to the period for each day to which the self shelf life belongs,
The specific gas contains ethylene,
The self-expiration date is determined according to the following equation,

In the above equation, T is the external temperature, D is a variable representing the standard shelf life (hr) according to the fruit variety, E is a variable representing the concentration of ethylene, and α is individually set according to the fruit variety. A weight, and k is a parameter for predicting ripening of fruit, which is determined according to the external temperature.

Images