JP2015218411A - Loom radio communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loom radio communication device which can achieve both the reliability of machine base authentication and excellent usability when a plurality of looms are managed by a portable information terminal including radio communication means.SOLUTION: A plurality of looms 11 are connected to a host computer 21. The plurality of looms 11 share a portable terminal device 31. Each loom 11 includes a loom-side short-distance radio communication unit 17. The terminal device 31 includes: a terminal device-side short-distance radio communication unit for performing machine base authentication with the loom-side short-distance radio communication unit 17; and a long-distance radio communication unit for performing data communication other than the machine base authentication with the host computer 21. A transmission/reception area A1 of the loom-side short-distance radio communication unit 17 is smaller than a distance between the loom-side short-distance radio communication units 17 of the looms 11 adjacent to each other.

Description

  The present invention relates to a wireless communication device for a loom, and more particularly, to a wireless communication device for a loom when a loom operating panel is used as a wireless terminal in, for example, a weaving factory where many looms are provided at intervals of several meters. .

  Conventionally, one loom is provided with one information terminal device. Therefore, when a plurality of looms are installed, the information terminal devices are provided corresponding to the number of looms. Each information terminal device was provided with input means for setting the weaving conditions and output means for displaying the operation information.

  However, the opportunity to use the input means has been limited to setting the weaving conditions for the first time or resetting the setting. Also, the opportunity to use the output means is limited to when the operation information is referred to when the operation is unstable or when a failure occurs, or when the input weaving condition setting is confirmed. Therefore, it is not effective from the viewpoint of use frequency to provide the input means and the output means in each information terminal device, and most of the power required for display when the operation is stable is wasted in the output means. It was.

  In order to solve this problem, each loom has a controller for storing machine information such as operation information and weaving condition information, and an information terminal device having input / output means for machine information is provided on the loom. A machine information input / output system for a loom provided less than the total number has been proposed (see Patent Document 1). The information terminal device displays the machine base information fetched from an arbitrary controller on the output means, and transmits the weaving condition information set by the input means to the arbitrary controller for writing. As a communication method for transmitting and receiving machine information, it is disclosed to use a wireless method in which an antenna is connected to each of a controller and an information terminal device.

JP 2002-317358 A

  When multiple looms are managed by a portable information terminal equipped with wireless communication means, communication can be established between the machine that is to be operated and a machine that is different from the machine that is being operated. There is sex. In order to prevent erroneous operation and input / output, it is conceivable to communicate with the machine only while the mechanical switch on the machine is pressed, but the information terminal must be placed at a position where the mechanical switch can be operated. It is necessary to operate, and the usability is impaired.

  The present invention has been made in view of the above problems, and its object is to provide reliability and usability of machine authentication when a plurality of looms are managed by a portable information terminal equipped with wireless communication means. An object of the present invention is to provide a wireless communication device for a loom capable of achieving both good and good performance.

  A wireless communication device for a loom that solves the above problem is a wireless communication device for a loom in which a plurality of looms are connected to a host computer. A portable terminal device is shared by the plurality of looms, each loom includes a loom side short-range wireless communication unit, and the terminal device performs machine base authentication with the loom side short-range wireless communication unit A device-side short-range wireless communication unit, and a long-range wireless communication unit that performs data communication other than the machine authentication between the host computer or the loom, the loom-side short-range wireless communication unit and the terminal device-side short-range The transmission / reception area of at least one of the wireless communication units is smaller than the distance between the loom side short-range wireless communication units of the adjacent looms.

  If machine authentication is performed only by long-distance wireless communication, a plurality of machines and a terminal device can communicate with each other, so that the reliability of machine authentication is lowered. However, in this invention, the portable terminal device shared by a plurality of looms and machine authentication with each loom are performed between the mutual short-range wireless communication units, and the loom-side short-range wireless communication unit and the terminal Since the transmission / reception area of at least one of the device-side short-range wireless communication units is smaller than the distance between the loom-side short-range wireless communication units of the adjacent looms, communication between only the target loom and the terminal device is established. Is possible. In addition, since the terminal device performs data communication other than machine authentication with the host computer or each loom using the long-distance wireless communication unit, large-capacity communication is also possible. Therefore, when managing a plurality of looms with a portable information terminal provided with a wireless communication unit, it is possible to achieve both the reliability of machine authentication and the ease of use.

  If machine authentication and actual data communication other than machine authentication data are performed only by long-distance wireless communication, the reliability of machine authentication is lowered. However, according to the present invention, since the portable terminal device that manages a plurality of looms and machine base authentication with each loom are performed by short-range wireless communication, the machine base authentication with the target loom is performed by short-range wireless communication. This is possible by operating the terminal device within a communicable range. In addition, since the terminal device performs data communication other than machine authentication with the host computer or each loom using long-distance wireless communication means, large-capacity communication is also possible. Therefore, when managing a plurality of looms with a portable information terminal provided with wireless communication means, it is possible to achieve both the reliability of machine authentication and the ease of use.

  The short-range wireless communication unit preferably has a radio wave adjustment volume. According to this configuration, by adjusting the radio wave intensity using the radio wave adjustment volume, it is possible to adjust the transmission / reception area so that the terminal device cannot communicate with a plurality of units simultaneously. As a result, it is possible to prevent erroneous establishment of communication with other than the intended loom.

  It is preferable that the loom side short-range wireless communication unit and the terminal device side short-range wireless communication unit perform radio wave transmission in all directions. When directivity is given to radio wave transmission, it is necessary to perform machine base authentication in a specific positional relationship between the information terminal and the loom base. However, when the loom side short-range wireless communication unit and the terminal device side short-range wireless communication unit perform radio wave transmission in all directions, the degree of freedom of the position of the information terminal when performing machine authentication is high.

  It is preferable that the loom side short-range wireless communication unit and the terminal device side short-range wireless communication unit have directivity for radio wave transmission. According to this configuration, it is possible to communicate only with the loom directed to the terminal device side short-range wireless communication unit, and the communicable area can be easily limited.

  According to the present invention, when a plurality of looms are managed by a portable information terminal provided with wireless communication means, it is possible to achieve both the reliability of machine base authentication and the ease of use.

The schematic block diagram of one Embodiment. The block diagram of a loom and a terminal device. The flowchart explaining an effect | action. Schematic which shows the relationship between the loom of another embodiment, and a terminal device.

Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, the plurality of looms 11 are connected to a host computer 21 via a wired LAN (local area network) 12. The plurality of looms 11 share a portable terminal device 31. For example, a tablet or a smartphone is used as the terminal device 31. The host computer 21 is connected to the wired LAN 12 via the LAN spot 22. The wired LAN 12 can communicate via the LAN spot 22. The host computer 21 is provided, for example, at an office of a fabric factory.

  Each loom 11 includes a loom control computer 13 as shown in FIG. The loom control computer 13 includes a CPU 14 and a memory 15. The loom control computer 13 is connected to the LAN adapter 16 and the loom side short-range wireless communication unit 17 via an input / output interface (not shown). The transmission / reception area A1 of the loom side short-range wireless communication unit 17 is smaller than the distance between the loom side short-range wireless communication units 17 of the adjacent looms 11. The loom side short-range wireless communication unit 17 includes a radio wave adjustment volume 18. The loom side short-range wireless communication unit 17 performs radio wave transmission in all directions. The loom control computer 13 can perform long-distance wireless communication via the LAN adapter 16 and the LAN spot 22.

  The terminal device 31 includes a CPU 32, a memory 33, a terminal device side short-range wireless communication unit 34, a long-range wireless communication unit 35, and an input / output unit 36. The CPU 32 is connected to the terminal device side short-range wireless communication unit 34, the long-range wireless communication unit 35, and the input / output means 36 via a bus 37 and an input / output interface 38. The input / output means 36 is constituted by a touch panel, for example. The terminal device 31 performs machine table authentication of each loom 11 via the terminal device side short-range wireless communication unit 34 and the loom side short-range wireless communication unit 17. The terminal device side short-range wireless communication unit 34 performs radio wave transmission in all directions. The long-range wireless communication unit 35 performs data communication other than machine authentication with the host computer 21 via the LAN spot 22. The communication distance (transmission / reception area) of the terminal device side short-range wireless communication unit 34 is about several centimeters to 3 m, and the communication distance (transmission / reception area) of the long-range wireless communication unit 35 is about several tens of meters.

Next, the operation of the apparatus configured as described above will be described.
In the loom side short-range wireless communication unit 17 of each loom 11, the radio wave intensity of the radio wave adjustment volume 18 is adjusted so that the transmission / reception area A 1 does not overlap the transmission / reception area A 1 of the loom side short-range wireless communication unit 17 of another loom 11. It is set to the state. The host computer 21 inputs machine table information such as operation information and weaving condition information of each loom 11 via the wired LAN 12.

The terminal device 31 acquires from the host computer 21 actual data of the loom 11 that has undergone machine authentication in accordance with the flowchart of FIG. 3.
First, in step S1, machine authentication of the target loom is performed. The machine authentication is performed by short-range wireless communication with the loom-side short-range wireless communication unit 17 of the loom 11 using the terminal-device-side short-range wireless communication unit 34 of the terminal device 31. Specifically, a machine number request signal is transmitted from the terminal device side short-range wireless communication unit 34 to the loom side short-range wireless communication unit 17 to the target loom 11. The machine number request signal may be transmitted by an operator's operation or automatically at predetermined time intervals. When the loom side short-range wireless communication unit 17 receives the machine number request signal, the loom side short-range wireless communication unit 17 transmits the machine number to the terminal device 31, and the terminal device side short-range wireless communication unit 34 receives it. Is done. Since the transmission / reception area A1 of the loom-side short-range wireless communication unit 17 is smaller than the distance between the loom-side short-range wireless communication units 17 of the adjacent looms 11, the terminal device-side short-range wireless communication unit 34 can receive the machine base signal. Limited to the loom 11 of the table.

  When the machine authentication is confirmed in step S1, actual data communication is performed with the host computer 21 by long-distance wireless communication via the long-distance wireless communication unit 35 and the LAN spot 22 in step S2. The actual data is, for example, operation information and weaving condition information related to the loom 11 for which machine authentication has been performed, specifies the data desired to be obtained by operating the input / output means 36, and inputs necessary information to the input / output means. 36.

  During actual data communication by long-distance wireless communication, the process proceeds to step S3 at a preset setting cycle. A confirmation signal is transmitted by the wireless communication unit 17. In step S4, it is determined whether or not there is a response from the terminal device 31.

  If there is a response from the terminal device 31 in step S4, the process returns to step S2 to continue actual data communication. If there is no response from the terminal device 31 in step S4, it will progress to step S5, will cancel establishment of a communication line, and will complete | finish communication.

When machine stand authentication is performed only by long-distance wireless communication, a plurality of looms 11 exist in the transmission / reception area, and reliability of machine stand authentication is lowered.
In addition, if machine authentication + actual data communication is performed with only one short-range wireless communication, the communication speed is limited. NFC, which is a short-range wireless communication system that is often installed in tablets and smartphones, is about several hundred kbps at the maximum. Note that Bluetooth (registered trademark) and Wi-Fi, which are also long-distance wireless communication systems often installed in tablets and smartphones, can communicate at several Mbps.

  The portable terminal device 31 that manages a plurality of looms 11 and machine authentication with each loom 11 are performed by short-range wireless communication, and the transmission / reception area A1 of the loom-side short-range wireless communication unit 17 is adjacent to the loom 11. It is possible to establish communication between the terminal device 31 and only the target loom 11 that is smaller than the distance between the loom side short-range wireless communication units 17. Further, since the terminal device 31 performs data communication other than machine authentication with each loom 11 by the long-range wireless communication unit 35, large-capacity communication is also possible.

According to this embodiment, the following effects can be obtained.
(1) The loom wireless communication device is a loom wireless communication device in which a plurality of looms 11 are connected to a host computer 21. The portable terminal device 31 is shared by a plurality of looms 11, each loom 11 includes a loom side short-range wireless communication unit 17, and the terminal device 31 communicates with the loom side short-range wireless communication unit 17 of each loom 11. A terminal device side short-range wireless communication unit 34 that performs machine base authentication and a long-range wireless communication unit 35 that performs data communication other than machine base authentication with the host computer 21 are provided. The transmission / reception area A1 of the loom side short-range wireless communication unit 17 is smaller than the distance between the loom side short-range wireless communication units 17 of the adjacent looms 11. Therefore, when a plurality of looms 11 are managed by the portable terminal device 31 provided with wireless communication means, it is possible to achieve both the reliability of the machine base authentication and the ease of use.

  (2) The loom side short-range wireless communication unit 17 has a radio wave adjustment volume 18. According to this configuration, by adjusting the radio wave intensity with the radio wave adjustment volume 18, it is possible to adjust the transmission / reception area so that the terminal device 31 cannot communicate with the plurality of looms 11 simultaneously. As a result, it is possible to prevent erroneous establishment of communication with other than the target loom 11.

  (3) The loom side short-range wireless communication unit 17 and the terminal apparatus side short-range wireless communication unit 34 perform radio wave transmission in all directions. When directivity is given to the radio wave transmission, it is necessary to perform machine authentication in a specific positional relationship between the terminal device 31 and the loom 11. However, when the loom side short-range wireless communication unit 17 and the terminal device side short-range wireless communication unit 34 perform radio wave transmission in all directions, the degree of freedom of the position of the terminal device 31 when performing machine authentication is increased.

  (4) The loom control computer 13 of the loom 11 confirms the response of the terminal device 31 by short-range wireless communication at a preset setting cycle during actual data communication by long-range wireless communication, and receives a response from the terminal device 31. If there is, the actual data communication is continued. If there is no response, the establishment of the communication line is discarded and the communication is terminated. According to this configuration, it is possible to prevent the actual data communication from being unnecessarily continued in a state where the terminal device 31 does not require input of actual data. In addition, the operator does not transmit the end of the actual data communication to the loom control computer 13 of the loom 11 by the terminal device 31, but only moves from the communicating loom 11 to the outside of the transmission / reception area A <b> 1 of the loom side near field communication unit 17. Thus, actual data communication can be terminated.

The embodiment is not limited to the above, and may be embodied as follows, for example.
The transmission / reception area of the terminal device side short-range wireless communication unit 34 instead of the transmission / reception area A1 of the loom side short-range wireless communication unit 17 may be smaller than the distance between the loom-side short-range wireless communication units 17 of the adjacent looms 11. Even in this case, since the loom 11 that can receive the machine number request signal from the terminal device side short-range wireless communication unit 34 is limited to one, the terminal device 31 establishes short-range wireless communication only with the specific loom 11, Machine authentication can be performed. Note that the transmission / reception areas of both the loom-side short-range wireless communication unit 17 and the terminal-device-side short-range wireless communication unit 34 may be smaller than the distance between the loom-side short-range wireless communication units 17 of the adjacent looms 11.

  As shown in FIG. 4, the diameter of the transmission / reception area A1 of the loom side short-range wireless communication unit 17 is larger than the distance L between the loom side short-range wireless communication units 17 of the adjacent looms 11 and the terminal device side short-range wireless communication unit 34. The diameter of the transmission / reception area A2 (not shown) may be set smaller than the distance L between the loom side short-range wireless communication units 17. Even in this case, since the loom 11 that can receive the machine number request signal from the terminal device side short-range wireless communication unit 34 is limited to one, the terminal device 31 establishes short-range wireless communication only with the specific loom 11, Machine authentication can be performed.

  ○ At least one radio wave transmission of the loom side short-range wireless communication unit 17 and the terminal device side short-range wireless communication unit 34 may have directivity. In the case where the loom side short-range wireless communication unit 17 is provided with directivity, for example, by setting the radio wave to fly only in front of the loom 11, the communicable area with the wireless information terminal (terminal device 31) is limited. At that time, the radio wave intensity is adjusted so that the radio wave does not fly to another loom 11 ahead.

  ○ When directivity is given to the radio wave transmission of the terminal device side short-range wireless communication unit 34, only the loom 11 directed to the terminal device 31 can communicate by providing directivity to the radio wave transmission of the terminal device side short-range wireless communication unit 34. This makes it possible to limit the communicable area. At that time, the radio wave intensity is adjusted so that communication with another loom 11 on the extension line of the loom 11 facing the terminal device 31 is not possible.

  ○ Actual data communication may be realized not only by long-distance radio but also by a combination of long-distance radio and wired LAN. For example, a long distance wireless transmission unit is provided on each loom 11 side, the actual data of each loom 11 is transmitted from the host computer 21 to the loom 11 via a wired LAN, and the long distance wireless communication unit and the terminal of the loom 11 are transmitted. Actual data communication may be performed by long-distance wireless communication with the long-distance wireless communication unit 35 of the device 31.

  O Instead of going through the host computer 21, each loom 11 may be provided with a long-distance wireless communication unit, and communication with the actual data of each loom 11 may be performed with the long-distance wireless communication unit 35 of the terminal device 31.

  When actual data communication is performed by a combination of long-distance wireless and wired LAN, actual data is transmitted from the loom control computer 13 of the loom 11 to the host computer 21 via the wired LAN 12, and the terminal device 31 is connected to the host computer 21 for a long time. You may make it receive the actual data transmitted from the loom control computer 13 by distance radio | wireless.

The following technical idea (invention) can be understood from the embodiment.
(1) In the wireless communication device for a loom according to any one of claims 1 to 4, each loom includes a loom control computer, and the loom control computer is other than machine authentication with the terminal device. When performing data communication, the terminal device confirms the response by short-range wireless communication at a preset setting cycle. If there is no response, the establishment of the communication line is discarded and the communication is terminated.

  A1, A2 ... transmission / reception area, L ... distance, 11 ... loom, 17 ... loom side near field communication unit, 18 ... radio wave adjustment volume, 21 ... host computer, 31 ... terminal device, 34 ... terminal device side near field communication unit, 35: Long-distance wireless communication unit.

Claims (4)

A loom wireless communication device in which a plurality of looms are connected to a host computer,
A portable terminal device is shared by the plurality of looms,
Each of the looms includes a loom side short-range wireless communication unit,
The terminal device performs a data communication other than the device authentication between the terminal device side short-range wireless communication unit that performs machine base authentication with the loom side short-range wireless communication unit and the host computer or the loom. A distance wireless communication unit,
A transmission / reception area of at least one of the loom side short-range wireless communication unit and the terminal device side short-range wireless communication unit is smaller than a distance between the loom side short-range wireless communication units of the adjacent looms. Wireless communication device.   The loom wireless communication device according to claim 1, wherein the loom side short-range wireless communication unit includes a radio wave adjustment volume.   The loom wireless communication device according to claim 1 or 2, wherein the loom side short-range wireless communication unit and the terminal device side short-range wireless communication unit perform radio wave transmission in all directions.   3. The loom wireless communication device according to claim 1, wherein at least one of the loom side short-range wireless communication unit and the terminal device side short-range wireless communication unit has directivity for radio wave transmission.