KR20090001678A - System for intelligent pallet - Google Patents

Abstract

An intelligent palette system is provided to increase management effectiveness of inventory management of material, the loading management, and storage/delivery management etc. An intelligent palette system comprises the followings: a loading unit(100) carrying the materials attached the RFID tag; a load sensor unit(200) outputting a control signal according to the load change; a recognition unit(300) reading and outputting the stored code information in the RFID tag; a control unit(400) outputting the control signal; a communication unit(500) receiving the particular materials information received from the load management server; and a center power supply unit(600) controlling a power source supply/cut off to the system.

Description

Intelligent Pallet System {SYSTEM FOR INTELLIGENT PALLET}

The following drawings, which are attached in this specification, illustrate exemplary embodiments of the present invention, and together with the detailed description of the present invention, serve to further understand the technical spirit of the present invention. It should not be construed as limited to.

1 is a schematic configuration diagram of an intelligent pallet system according to an embodiment of the present invention.

2 is a schematic configuration diagram showing an arrangement of a loading unit and a load sensor unit according to an embodiment of the present invention.

3 is a schematic configuration diagram showing an arrangement of a recognition unit according to an embodiment of the present invention.

Figure 4 is a flow chart for explaining the intelligent pallet system operating method according to an embodiment of the present invention.

* Names of symbols for main parts of the invention

100: loading part 200: load sensor part

300: recognition unit

300A: Fixed RFID Reader

300B: Mobile RFID Reader

400: control unit

420: data storage device

430: display device

500: communication unit 600: central power unit

700: logistics management server

The present invention relates to a construction logistics management system, and more particularly, by using a ubiquitous technology including a wireless sensor network and radio frequency identification (RFID). The present invention relates to an intelligent pallet system that enhances the efficiency of the logistics management process by increasing the efficiency of inventory management, load management, incoming / outgoing management, transportation, lifting and loading management, as well as sharing material information among construction participants in real time.

In general, as buildings are becoming large and ultra high rise, various types of materials are handled in large quantities at construction sites, and accordingly, they are produced by various companies in accordance with process and material requirements and are received through various routes. .

In addition, various operations such as input / export management, inventory management, history management for managing historical information according to location change in the warehouse, picking and stacking of workers, etc. In many cases, the work of assigning these tasks is performed by human resources.

However, in such work management, including such as input and output management, inventory management, history management, load management, transportation between the material production plant and the construction site, and on-site transportation, lifting, and load management, the existing method is described above. As a result, depending on manpower, it takes a lot of time, which hinders supply and demand of materials necessary for work, causing problems such as air delay, lower work efficiency, and increased construction cost, which collectively lower construction productivity. It is becoming.

Recently, an automated warehouse management system has been applied, and barcode technology has been applied to manage incoming and outgoing shipments, inventory management, and inventory management.

However, barcodes necessarily require people to read material through a barcode reader, and when a person performs a variety of tasks, sometimes an unintended error can occur that omits the barcode reading process.

In addition, due to the problem that the reader has to carry out the inspection by hand, a lot of inspecting personnel are required, and the management and labor costs for the labor force are burdensome. In addition, if the barcode is partially damaged, a person must enter the barcode number manually, and thus, an operation inefficiency problem occurs.

Therefore, the present invention was created to solve the problems inherent in the prior art as described above, an object of the present invention is ubiquitous (Ubiquitous) including a wireless sensor network (RF) and Radio Frequency IDentification (RFID) Technology can be used to manage material inventory, load management, incoming and outgoing shipments, transport between material production plants and construction sites, as well as transport, lifting and loading management on site, as well as loading material information on pallets. It is to provide an intelligent pallet system to share and increase the efficiency of logistics management process.

In order to achieve the above object, according to an aspect of the present invention, the input and output management, inventory management, history management, loading management, material production plant for materials temporarily loaded for construction material factory and construction site warehouse or transport An intelligent pallet system is provided for transport management between the construction site and the construction site and for job management including on-site transportation, lifting, and load management, the system comprising: a loading section for loading the material with an RFID tag; A load sensor unit outputting a control signal according to a change in the load load of the material loaded on the load unit; A recognizing unit which reads the RFID tag of the material loaded in the loading unit and reads and outputs code information stored in the RFID tag; Receives and stores code information received from the recognition unit and individual material information mapped to the code information from the outside, displays the stored code information and individual material information in real time, and outputs the code information and the load sensor unit. A control unit for outputting a control signal for communication and power management according to the reception of the control signal according to the change in the loading load; Receives code information output from the recognition unit, and wirelessly transmits the received code information to a logistics management server for providing individual material information mapped to the code information according to a control signal output from the control unit. A communication unit configured to receive individual material information mapped to the code information received from the logistics management server; And a central power supply unit configured to control power supply and cutoff to the system according to a control signal output from the controller.

In the above configuration, the recognition unit is fixed to a specific position of the loading unit, a fixed RFID reader for reading the RFID tag of the material loaded on the loading unit, and read the code information according to the communication unit and the control unit; And a mobile RFID reader for reading an RFID tag of a material loaded in the loading unit according to an operator's operation, reading the code information and outputting the code information to the communication unit and the control unit. The reader is characterized in that it is selectively attached / detached to the loading unit according to the characteristics of the material loaded on the loading unit.

In the configuration, the control unit, the data storage device for storing the code information output from the recognition unit and the individual material information provided from the logistics management server; A display device including a touch screen function for displaying code information and individual material information stored in the data storage device in real time to an operator and receiving predetermined information from the operator; Controls the operation of the data storage device and the display device, and outputs a control signal for communication and power management in accordance with the reception of the code information and the control signal according to the change in the load load output from the load sensor unit Apparatus; characterized in that it comprises a.

In the above configuration, the communication unit receives the code information output from the recognition unit and stores in its own memory, and the unique code for distinguishing the stored individual material information and the system according to the control signal output from the control unit the logistics management It comprises a; Zigbee (Zigbee) module to send to the server.

In the above configuration, the central power supply unit maintains a constant power supply state to the load sensor unit, the control unit, and the communication unit, and is output from the control unit when the control signal according to the load change is applied from the load sensor unit. When the power supply is controlled according to the signal, the recognition unit in the sleep mode is switched to the wake-up mode, and the control signal according to the load change is not applied from the load sensor unit for a predetermined time. And converting the system power except the power of the load sensor unit, the control unit, and the communication unit into a sleep mode.

(Example)

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 shows a schematic diagram of an intelligent pallet system according to an embodiment of the present invention.

The intelligent pallet system according to the embodiment of the present invention is temporarily loaded for a construction material factory and a construction site warehouse or transport, inventory management, loading management, inventory for the RFID tag material for storing individual material information For work management, including shipment management and transportation between material production plants and construction sites, and on-site transportation, lifting, and load management, the status of materials loaded using wireless network technology Is transmitted to a predetermined server located outside, so that the server can build a database for the identified material and later manage it.

To this end, as shown in FIG. 1, the system includes a loading unit 100, a load sensor unit 200, a recognition unit 300, a control unit 400, a communication unit 500, a central power supply unit 600, and Has a configuration including a logistics management server 700 located outside.

The loading unit 100 is for loading the material 110 attached to the RFID tag 111 for storing individual material information in a construction material factory, a construction site warehouse, etc., as shown in FIG. A plurality of materials with the RFID tag 111 attached thereto are loaded on the top.

In addition, the load sensor unit 200 is for outputting a control signal according to the change in the loading load of the material 111 loaded on the loading unit 100, the load of the material 111 loaded on the loading unit 100 It has a configuration including a load sensor 210 for sensing and a communication interface 220 for the control signal output from the load sensor 210 to the outside. As shown in FIG. 2, the load sensor unit 200 is mounted on the lower frame of the loading unit 100, and detects the loading load of the loading unit 100 and outputs a control signal accordingly.

The recognition unit 300 reads the RFID tag 111 of the material 110 loaded on the loading unit 100, reads the stored code information, and outputs the read RFID code. Modulation and demodulation unit 320 for demodulating and outputting the tag ID read through the RFID antenna 310, RFID processing unit 330 for reading the code information by receiving the tag ID via the modulation and demodulation unit 320 and the reading It has a configuration including a communication interface 340 for transmitting the code information to the outside.

As shown in FIG. 3, the recognition unit 300 is classified into a fixed RFID reader 300A and a mobile RFID reader 300B. That is, the fixed RFID reader 300A is attached to a specific position of the loading unit 100 to lead the RFID tag 111 of the material 110 loaded on the loading unit 100, and the code stored in the RFID tag 111. The information is read and output to the communication unit 500 and the control unit 400. In addition, the mobile RFID reader 300B is for recognizing the RFID tag 111 of the material 110 which is not recognized through the fixed RFID reader 310, and is configured to be detachably attached to the loading unit 100. In other words, when the fixed RFID reader 300A recognizes the RFID tag 111 attached to the material 110, there is an advantage that a manager or operator does not need to separately lead the attached RFID tag 111 of the material. There is a limit in recognizing tags attached to all materials 110. Accordingly, the mobile RFID reader 300B reads the RFID tag 111 of the material 110 loaded along the periphery of the loading unit 100 by an operator, that is, an administrator or an operator, reads the stored code information, and reads the communication unit. Output to the 500 and the control unit 400. Here, the mobile RFID reader 300B corresponds to various portable terminals capable of being carried with an RFID reader function. Accordingly, the mobile terminal possessed by the operator can also be applied by mounting the RFID reader function.

Meanwhile, the recognition unit 300 selectively applies one of the fixed RFID reader 300A or the mobile RFID reader 300B or the fixed RFID reader 300A and the mobile RFID reader 300B according to the characteristics of the material 110 and the use place. ) Can be applied at the same time. In addition, the fixed RFID reader 300A and the mobile RFID reader 300B applied to the recognition unit 300 may be installed in the loading unit 100 to optimize a corresponding process of sharing information through communication with the logistics management server 700. It may be selectively applied to the loading unit 100 in a plug-in manner according to the characteristics of the material 110 to be loaded.

The control unit 400 receives and stores code information output from the recognition unit 300, and displays individual material information mapped to the stored code information from the logistics management server 700 in real time. That is, when code information is received from the recognition unit 300, the control unit 400 outputs a control signal according to the communication unit 300 to transmit the code information to the logistics management server 700, the logistic Receives and displays individual material information mapped to the transmitted code information from the management server 700. In addition, the control unit 400 receives the control signal according to the change in the load load output from the load sensor unit 200 and outputs a control signal for power management to the central power unit 600. To this end, the control unit 400 receives the code information output from the recognition unit 300, transmits a control signal according to it, and at the same time a communication interface 410 for receiving various information received from the outside, the A data storage device 420 for storing code information received through the communication interface 410 and individual material information mapped to the code information; Display having a touch screen function for displaying the code information stored in the data storage device 420 and individual material information transmitted from the logistics management server 700 in real time to the operator, and receiving a predetermined message from the operator. Device 430; Control to control the operation of the data storage device and the display device, and outputs a control signal for communication and power management in response to receiving the code information and the control signal according to the change in the load load output from the load sensor unit Apparatus 440; has a configuration that includes.

The communication unit 500 receives the code information output from the recognition unit 300 and stores the code information in its own memory, and stores the code information and the unique code for distinguishing the system according to the control signal output from the control unit 400. In order to transmit to the logistics management server 700, the integrated communication control unit 510 that manages the overall communication interface in the system, and the unique code for distinguishing the code information and the system according to the control signal output from the control unit 400 A wireless communication device 520 for transmitting to the logistics management server 700 and receiving individual material information mapped to the code information from the logistics management server 700 has a configuration. The wireless communication device 520 stores the code information through an internal memory and supplies the code information and a unique code for distinguishing a system according to a control signal output from the controller 400 to the logistics management server 700. Zigbee module to send to is applied. Here, the unique code for identifying the system is a unique code given to the Zigbee module, and is used as a classification code for identifying the system when constructing the database of the logistics management server 700. Meanwhile, although the Zigbee module is applied to the wireless communication device 520 in the present embodiment, various commercially available wireless communication technologies based on wireless communication, such as Bluetooth, may also be applied. In addition, when the communication unit 500 is located in a variety of transportation means or a predetermined place including an intelligent trailer equipped with a wireless communication device in addition to the logistics management server 700, the wireless communication device 520, By transmitting to the wireless communication device of the object through the Zigbee module, it is possible to enable more efficient material transport and management.

The central power source 600 is for controlling the supply of power to the system according to a control signal output from the control unit 400, a communication interface 610 for receiving a control signal output from the control unit 400, According to a control signal received through the communication interface 610, the power supply control unit 620 for controlling the power supply in the system and a power supply device 630 which is a power supply source. The central power supply unit 600 maintains a power supply state to the load sensor 200, the control unit 400, and the communication unit 500, and a control signal from the control unit 400 may be applied according to a change in the load load. In this case, the power supply is controlled to switch the recognition unit 300 which is a sleep mode to a wake-up mode, and manage the inventory of the material 110 to which the RFID tag 111 is attached. It enables work management including management and history management. On the other hand, when the control signal according to the load change is not applied from the load sensor unit 200 for a predetermined time, the system power except the power of the load sensor unit 200, the control unit 400, and the communication unit 500 By switching to sleep mode, power consumption is minimized for long-term utilization for efficient operation of material procurement systems typically required in the construction industry.

The logistics management server 700 receives code information transmitted from the communication unit 500, reads individual material information mapped to the code information, and controls the read individual material information via the communication unit 500. Provided at 400. In addition, the received code information and the individual material information mapped to the code information into a database (DB). In this case, the logistics management server 700 uses the ZigBee module's unique code transmitted from the communication unit 500 as a classification code, classifies and stores the location and type of materials, and provides the stored information to the accessor. do.

Hereinafter, a method of operating an intelligent pallet system according to an embodiment of the present invention will be described with reference to the above-described configuration and FIG. 4. 4 is a flowchart illustrating an intelligent pallet system operating method according to an exemplary embodiment of the present invention.

First, when materials are loaded in the loading unit 100 of the intelligent pallet system, the load sensor unit 200 mounted on the lower frame of the loading unit 100 detects a load and controls the control signal through the internal communication interface. The controller receives the control signal and outputs a control signal for power management to the central power supply unit 600 (S110-S130). Preferably, the load sensor 210 of the load sensor unit 200 detects a load and outputs a control signal according to the load, and the output control signal is controlled through the internal communication interface 220 and the integrated communication control unit 510. 400). Thereafter, the control unit 400 receives the control signal to the central power unit 600 through the control device 400 for power management.

Next, the central power supply unit 600 receiving the control signal according to the load detection from the control unit 400 controls the amount of power supply to switch the recognition unit 300 in the sleep mode to the wake-up mode. It is possible to enable the job management, including incoming and outgoing management, inventory management, and history management for the material 110 (S140). Preferably, the load sensor unit 200 receives a control signal output from the control unit 200 through the internal communication interface 610, and controls the amount of power supply through the control of the power supply control unit 620.

Then, the power supply recognition unit 300 reads the RFID tag 111 of the material 110 loaded on the loading unit 100, and reads the stored code information. Thereafter, the read code information is transmitted to the control unit 400 via the communication unit 500 (S150-S170). Preferably, first, the fixed RFID reader 300A of the recognition unit 300 reads the RFID tag 111 of the loaded material 110. Thereafter, the RFID tag 111 for the remaining material 110 that is not recognized through the fixed RFID reader 300A is recognized through the mobile RFID reader 300B. Then, the code information read through the fixed RFID reader 300A and the mobile RFID reader 300B is transmitted to the communication unit 500 and the control unit 400. That is, the fixed RFID reader 300A and the mobile RFID reader 300B read the tag 111 through the RFID antenna 310 and read the code information read through the modulation / demodulation unit 320 and the RFID processing apparatus 330. The communication is transmitted to the wireless communication device 520 and the control unit 400 via the internal communication interface 340 and the integrated communication control unit 510.

Then, the control unit 400 outputs a control signal according to the code information reception to the communication unit 300, the communication unit 500 receives from the recognition unit 300 in accordance with the control signal output from the control unit 400 The code information and the unique code for distinguishing the system are transmitted to the logistics management server 700 (S180-S190). Preferably, the controller 400 receives code information output from the recognition unit 300 through the internal communication interface 410. Thereafter, the control device 440 outputs a control signal according to the reception of the code information, and the output control signal is preferably transmitted to the wireless communication device 520 through the internal communication interface 410 and the unified communication control unit 510. It is passed to the Zigbee module. Meanwhile, the Zigbee module stores code information received from the recognition unit 300 in its own memory according to a control signal from the controller 400, and stores the stored code information and a unique code for distinguishing the system from the logistics management server. Send to (700). At this time, the unique code for identifying the system is a unique code given to the Zigbee module, it is used as a classification code for identifying the system when building the database of the logistics management server 700.

Thereafter, the logistics management server 700 receives the code information transmitted from the communication unit 500, reads out individual material information mapped to the code information, transmits the information to the communication unit 500, and receives the communication unit ( 500 transmits the individual material information received from the logistics management server 700 to the control unit 400 (S200-S220).

Then, the controller 400 stores the code information received from the recognition unit 300 and the individual material information received from the logistics management server 700 in the data storage device 410 and displays the stored individual material information. (S230-S240). Preferably, the controller 400 stores the code information received from the recognition unit 300 and the individual material information mapped to the code information provided from the logistics management server 700 in the data storage device 420, By displaying the stored information in real time through the display device 420, the operator, that is, manager or worker to check the information on the material 110 loaded

On the other hand, when the loading of the material 110 is completed, the control signal according to the load change is not applied from the load sensor unit 200 for a predetermined time, the control unit 400 through the central power supply unit 600, the control unit ( 400) and shuts off the system power except the power of the communication unit 500 to operate the system in a power saving mode (S250-S270). That is, when the control signal according to the load change is not applied from the load sensor unit 200 for a predetermined time, the controller 400 transmits the control signal according to the central power supply unit 600 to load the load sensor unit 200. By switching the system power except the power of the control unit 400 and the communication unit 500 to the sleep mode, the power consumption of the system is minimized.

As can be seen above, the intelligent pallet system according to the present invention, by using the wireless network technology to grasp the current status of the material loaded, and transmits the information to a predetermined server located outside, the server By establishing a database and later managing the identified materials, it is possible to improve the efficiency of material management and to increase the efficiency of the logistics management process by sharing the loading information.

Although the present invention has been described in detail with reference to the preferred embodiments, the present invention is not limited to the above-described embodiments, and the present invention belongs to the present invention without departing from the gist of the present invention as claimed in the following claims. Anyone skilled in the art will have the technical idea of the present invention to the extent that various modifications or changes are possible.

Claims (5)

Input / receipt management, inventory management, history management, loading management, transportation between the material production plant and the construction site and transport and on-site transportation, on-site, and for the materials temporarily loaded for the construction material factory and construction site warehouse or transport In an intelligent pallet system for job management, including load management, A loading unit for loading the material to which the RFID tag is attached; A load sensor unit outputting a control signal according to a change in the load load of the material loaded on the load unit; A recognizing unit which reads the RFID tag of the material loaded in the loading unit and reads and outputs code information stored in the RFID tag; Receives and stores code information received from the recognition unit and individual material information mapped to the code information from the outside, displays the stored code information and individual material information in real time, and outputs the code information and the load sensor unit. A control unit for outputting a control signal for communication and power management according to the reception of the control signal according to the change in the loading load; Receiving code information output from the recognition unit, and wirelessly transmitting the received code information to a logistics management server for providing individual material information mapped to the code information according to a control signal output from the control unit, A communication unit receiving individual material information mapped to the code information received from the logistics management server; And And a central power supply unit for controlling power supply and shutdown to the system according to a control signal output from the control unit. The method of claim 1, wherein the recognition unit, A fixed RFID reader fixed to a specific position of the loading unit, reading an RFID tag of a material loaded on the loading unit, reading the code information, and outputting the code information to the communication unit and the control unit; And And a mobile RFID reader for reading an RFID tag of a material loaded in the loading unit according to an operator's operation, reading the code information and outputting the code information to the communication unit and the control unit. The fixed RFID reader and the mobile RFID reader are intelligent pallet system, characterized in that the selective attachment / detachment to the loading portion according to the characteristics of the material loaded on the loading portion. The method of claim 1, wherein the control unit, A data storage device for storing code information output from the recognition unit and individual material information provided from the logistics management server; A display device including a touch screen function for displaying code information and individual material information stored in the data storage device in real time to an operator and receiving predetermined information from the operator; Control device for controlling the operation of the data storage device and the display device, and outputs a control signal for communication and power management in response to receiving the code information and the control signal according to the change in the load load output from the load sensor unit Intelligent pallet system comprising a. The method of claim 1, wherein the communication unit, Zigbee receives the code information output from the recognition unit and stores the code information in its own memory and transmits the stored individual material information and a unique code for distinguishing the system to the logistics management server according to a control signal output from the control unit. Intelligent pallet system comprising a module. The method of claim 1, wherein the central power supply unit, Maintains a constant power supply state in the load sensor unit, the control unit, and the communication unit, and when the control signal according to the load load change is applied from the load sensor unit, the power supply amount is controlled according to the control signal output from the control unit to sleep The recognition unit in the sleep mode is switched to the wake-up mode, and when the control signal according to the load change is not applied from the load sensor unit for a predetermined time, the load sensor unit, the control unit, and Intelligent pallet system, characterized in that for switching the system power except for the communication unit to the sleep (Sleep) mode.

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