JP2005045975A - Identifying device for electric wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To individually identify an electric wire of a wiring bundle at a high speed. <P>SOLUTION: In performing a routing work for wiring, a wiring number transmitter 1 and a wiring number display machine 2 are respectively connected to a wiring source and a wiring destination. The wiring number transmitter 1 has functions for assigning wiring numbers which are different from each other to each wire of the wiring bundle, connecting each of the wires of the wiring bundle of the wiring source to a connection terminal, sequentially scanning the wiring number display machine 2 connected to the wiring destination, and transmitting a digital code of the wiring number corresponding to the wire to the connection terminal with which the wiring number display machine 2 is currently connected as serial data. The wiring number display machine 2 is connected with one wire of the wiring bundle of the wiring destination, and has functions for transmitting a wiring selection signal, reading out the serial data transmitted by the wiring number transmitter 1, and displaying it to the display machine as the digital code. The wiring number of the selected wire of the wiring bundle of the wiring destination is displayed by the wiring number displayed in the wiring number display machine 2, thus individually identifying the wiring number of the connected wire at a high speed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to an electric wire identification device for facilitating wiring and connection work for electrical work.

In order to find the target wire from the bundle of wires, the wires are usually color-coded and identification labels are attached. Finally, one wire and one wire are checked for continuity, and the connected wires are incorrect. However, in order to check the continuity of the wires, at least one operator is required for the wiring source and the wiring destination. Finding one of these wires is inefficient and very difficult because of its establishment. In order to solve this, there is a method in which identification codes are sequentially transmitted to all electric wires and displayed by a receiver, but there is a drawback that it takes time to complete the transmission of the identification codes when the number of electric wires becomes large.
JP-A-10-82817

Conventionally, the problem to be solved is that as the number of electric wires increases, the electric wire identification work becomes more difficult in the wiring and connection work. This is because it takes time and effort to find one target wire from many wires. The wiring work is the work of connecting the specified standard wire directly from the wiring source to the wiring destination, but when the number of wires is as small as three or four, it can be easily identified by color coding etc., If this amount becomes large, it cannot be identified by itself. For this reason, a symbol etc. is written on the tip of the electric wire before the wiring is routed, and the electric wire is identified, but if it falls off or is worn out during the wiring, the continuity is confirmed with a tester after the wiring. However, it is difficult to find a single target wire from a large number of wires in a bundle of wires. And because it is done manually, it is not easy to reduce man-hours. There is also a method of transmitting the identification code to all the wires sequentially and displaying it on the receiver, but sending the identification code to one wire is fast, but when the number of wires becomes large, the transmission of the identification code is completed. It takes a few seconds to do so, and when a reading error occurs during reading, it is difficult to display.

In wiring operation, assign a non-overlapping wiring number to each wire in a wire bundle that is wired with multiple wires, and connect each wire in the wire bundle from the wiring source to the connection terminal of the wire number transmitter. Connect and sequentially scan that the wire number indicator is connected to one wire of the wiring bundle at the wiring destination, and the digital code of the wire number corresponding to the wire recognized to be connected is Connect the wire number transmitter that has the function of transmitting as serial data to the connection terminal to which the display is connected, and one wire of the wire bundle at the wiring destination, and send the serial data transmitted from the wire number transmitter. Connect the wiring number display unit with the function of reading and displaying it on the display unit as a digital code to the wiring source and the wiring destination, respectively, and select the wire bundle of the wiring destination by the wiring number displayed on the wiring number display unit Electric wire By performing the display of the line number, the displayed line number, of the connected electrical wires to the wiring number display device, the most important feature that the wire number to identify individually.

In the method of identifying each target wire from the wire bundle in the continuity check, it is necessary to connect to the same wire at both ends of the wiring. Therefore, the larger the number of wires, the more likely the same wire to be repeated. In the case of the present invention, one target electric wire connected to the wire bundle is detected, the digital code is transmitted to the target electric wire, and the digital code is displayed as the wiring number. Since the number is displayed by reading with a machine, it is easy to identify the electric wire, and it is not necessary to check the same electric wire twice or more. Further, the transmission data has a feature that the wire number can be detected at a high speed as compared with the method of sequentially transmitting only the target wire.

In order to automatically transmit the digital code corresponding to the wiring number to one wire of the wire bundle to which the wire number display machine is connected, the worker alone sets the wire number transmitter to one end of the wire bundle. set. After that, you can set the wiring number display machine at the other end of the wiring bundle, and perform marking and wiring work with the received digital code. It becomes possible to do.

In order to display the target wire number at high speed, it was realized by transmitting the wiring number as a digital code only to the wire that can be recognized as being connected to the wire number indicator.

  As shown in FIG. 1, the electric wire identification device of the present invention is roughly composed of a wiring number transmitter 1 and a wiring number display device 2.

  First, an easily found electric wire, for example, a shield wire of a cable is a common wire 7s, and the wiring number transmitter 1 has connection terminals 5 to 5x (hereinafter referred to as a connection terminal 5) and a common terminal 3. The common terminal 3 and each connection terminal 5 are connected to the microcomputer 8 via photocouplers 11 to 11x and 12 to 12x (hereinafter referred to as photocouplers 11 and 12). One end 7 a of the wire bundle 7 is connected to the connection terminal 5 one by one, and the common wire 7 s is connected to the common terminal 3. As the common line, it is possible to use a temporary electric wire separately from the wiring 7s. The wiring number transmitter 1 incorporates a microcomputer 8, and the program of the microcomputer 8 scans the connection terminals 5 sequentially to check which wire at the wiring destination 7b the wiring number display device 2 is connected to, and wiring. The connection terminal 5 to which the number display device 2 is connected has a function of transmitting a digital code of a wire number corresponding to the connection terminal 5 as serial data.

A common terminal 6, an input terminal 4, and a display 10 for displaying a received code are attached to the wiring number display device 2, and each is connected to the microcomputer 9 via a photocoupler 13. The common terminal 6 and the common wire 7s are connected to the check terminal 4 and one wire of the wire bundle 7b. A microcomputer 9 is incorporated in the wiring number display machine 2, and the program of the microcomputer 9 transmits to the wiring number transmitter 1 that the connection to the electric wire is connected to one wiring in which the wiring bundle 7 b is connected to 7 s; There is a function of reading a digital code transmitted as serial data and displaying the digital code on the display 10.

  An interface between the wiring number transmitter 1 and the wiring number display 2 is shown in FIG. An input LED of the photocoupler 11 and an output of the photocoupler 12 are connected to the connection terminal 5 of the wiring number transmitter 1. The photocoupler 11 is used to check the connection of the wiring number display device, and the photocoupler 12 is used to detect the connection of the wiring number display device and to create a transmission code.

In order to select one from a large number of wiring numbers, a terminal number code corresponding to the connection terminal 5 output from the microcomputer 8 of the wiring number transmitter 1 is decoded by the channel selector 20 and NAND circuits 19 to 19x ( Hereinafter, the circuit is connected to the NAND circuit 19. This is used as a channel selection signal and sequentially output for each channel. The input circuit of the other NAND circuit 19 is connected to the microcomputer 8 and used for the connection check of the wiring number display machine 2 and serial data transmission. This is a data signal. The connection check of the wiring number display device 2 is performed by turning on the photocoupler 12 by the NAND circuit 19 using the channel selection signal and the data signal, and the state of the photocoupler 11 is connected to the microcomputer 8 via the OR circuit 18. Checked at the terminal. This state is the connection detection mode of the wiring number display machine. Change all terminal number codes in sequence to check all terminals. When the wiring number indicator 2 is not connected, the current path cannot be secured, the photocoupler 11 is off, and the output pulled up by the resistors 15 to 15x (hereinafter referred to as the resistor 15) is at a high level. Become. The wiring number transmitter 1 is recognized as not connected. Further, the photocoupler 13 of the wiring number display device is also turned off, and the output pulled up by the resistor 17 becomes a high level and is input to the microcomputer 9.

Here, when the wire number indicator 2 is connected and a current path is secured, when the connected wire matches the terminal number code, a current path is formed and the photocoupler 11 is turned on. The output pulled up by the resistor 15 becomes low level. By inputting to the microcomputer 8, the wiring number transmitter 1 recognizes the connection of the wiring number display device 2 to the connection terminal 5 corresponding to the channel selection signal. This is the wire selection signal. In the wiring number display device 2, the photocoupler 13 is turned on, and the output pulled up by the resistor 17 becomes low level and is input to the microcomputer 9. In this state, when the microcomputer 8 controls the data signal with the digital code corresponding to the wiring number, the state is transmitted to the photocoupler 13 and the state of the photocoupler 13 is input to the microcomputer 9.

In practice, the common terminal 3 and the common wire 7 s of the wiring number transmitter 1 are connected to the wiring bundle 7 a to the respective connection terminals 5. At this time, the microcomputer 8 is in a state of sequentially scanning the connection terminals 5.

Next, it moves to the wiring destination 7b and connects the common wire 7s and the common terminal 6 to the wiring number display 1 and the input terminal 4 and one electric wire of the wiring bundle 7b. A wire selection signal is sent from the input terminal 4 to the connection terminal 5 via the wire bundle 7 from the wiring number display 1.

When a wire selection signal is detected while scanning the connection terminal 5, the wire number transmitter 1 sends the wire number corresponding to the connection terminal 5 from which the wire selection signal has been detected to the detected connection terminal 5 to serial data. As shown in FIG. The wiring number display device 2 reads the input serial data and displays the wiring number on the display device 10.

When there is a short circuit between the wires in the middle of the wire bundle 7, since the wire selection signal is sent to both sides, both serial data are sent. In the wiring number display 2, since both short-circuited codes are received, it is possible to display a short circuit and a wraparound of the connected device. When checking the wiring after completing the wiring work, a wraparound of the digital code occurs due to the connected equipment, and multiple wire numbers may be displayed. In this case, a wraparound occurs and the displayed duplicates are displayed. It is easy to check the wiring by sequentially removing the numbered wirings sequentially. Further, the number of transmission channels of the wiring number transmitter 1 can be arbitrarily increased or decreased.

In the description, the power supply of the interface unit is performed from the wiring number transmitter 1, but can also be performed by the wiring number display device 2. Moreover, although the cable which is not energized is assumed, the electric wire identification by a live wire is also easy by using a high frequency as a carrier wave and passing a filter.

A printer that adds a printer interface to the wiring number display 2 and connects a printer that prints on a label or the like by using the transmitted digital code as a wiring number that is actually used. By sending the data to print the received code to and printing the received code, the operator reads the displayed digital code and fills it in automatically, eliminating human error Is possible.

Moreover, it is not necessary to visually check the display each time by adding a speech synthesis circuit and reading out the displayed digital code by speech.

A plurality of wiring number transmitters 1 can be easily connected by adding a unit number to the transmission data of the wiring number transmitter 2 so as to be unit number + transmission data. This is an effective means when wiring sources are scattered in a plurality of locations.

Connection status of the wiring number identification device. Interface part of the wiring number identification device.

Explanation of symbols

1. . . Wiring number transmitter . . 2. Wiring number display machine . . Transmitter common terminal 4. . . 4. Wiring number display input terminal . . Channel connection terminal 6. . . Wiring number display common terminal 7. . . Wiring bundle 8. . . Transmitter microcomputer 9. . . Wiring number display microcomputer 10. . Display 11. . Photocoupler 12. . Photocoupler 13. . Photocoupler 14. . Resistance 15. . Resistance 16. . Resistance 17. . Resistance 18. . OR circuit 19. . NAND circuit

Claims (1)

In the wiring operation, assign a unique wiring number to each wire bundle that is wired with multiple wires, and connect each wire in the original wire bundle to the connection terminal of the wiring number transmitter. Connect and sequentially scan that the wire number indicator is connected to one wire of the wiring bundle at the wiring destination, and the digital code of the wire number corresponding to the wire recognized to be connected is Connect the wire number transmitter that has the function of transmitting as serial data to the connection terminal to which the display is connected, and one wire of the wire bundle at the wiring destination, and send the serial data transmitted from the wire number transmitter. Connect the wiring number display unit with the function of reading and displaying it on the display unit as a digital code to the wiring source and the wiring destination, respectively, and select the wire bundle of the wiring destination by the wiring number displayed on the wiring number display unit Electric wire Display line number, the connected device that uniquely identifies the interconnection number of wires.

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