JPH0664114B2 - Method and apparatus for identifying correspondence of strands of multi-core cable - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for identifying the correspondence of strands between both ends of a multicore cable formed by bundling a plurality of insulated strands.

[0002]

2. Description of the Related Art Conventionally, this type of method is a method for an operator to visually identify from the color pattern of the covering insulating portion of each wire in a cable. As an automated method, prepare a test cable, a DC power supply, and a galvanometer, and connect the DC power supply and the galvanometer to both ends of the multicore cable to be identified using the test cable. , There is a method to determine whether one strand is correctly selected at both ends depending on whether current is flowing, or an adapter that arranges diodes and allows current to flow only in a specific direction is prepared. Connect one end side of the core cable in a comb shape, prepare a DC power supply at the other end side, apply it to one designated strand, and determine the number of closed circuits that can be formed between the strands other than the designated strand. There is a method of finding the corresponding strand from the strands on the side to which the adapter is connected by counting with a voltage comparator and a counter.

[0003]

In the method of distinguishing from the above-mentioned color pattern of the coated insulating portion, since it depends on the visual sense of the operator,
There is a problem that the work efficiency decreases when the cable has a large number of strands or when the work takes a long time. In the method of connecting the DC power supply and galvanometer to both ends of the cable to be identified by the test cable, in the case of a long cable to be identified, the test cable must be made longer to match it, and In the process of checking the correspondence, the work of switching the connection between the cable under test and the cable to be identified must be correctly operated at both terminals, and there is a problem that the work does not proceed smoothly due to the misconnection of both terminals. . In addition, a method in which a diode adapter is connected to one end side and a DC power supply is prepared at the other end side, and the number of closed circuits is counted by a voltage comparator, the measurement system corresponds to each different number of wires. The disadvantage is that you will have to do it. For example, if the number of pins in the system under test reaches 100 or more, the test voltage required for closed circuit detection will be 100 times or more the forward voltage of the silicon diode, and the number of strands will increase. As it progresses, the feasibility of the measurement circuit only increases in difficulty. Further, there is a problem that the threshold value of the DC power source and the voltage comparator or the constant of the current limiting resistor has to be adjusted, which is not practical.

Therefore, an object of the present invention is to make it possible to reliably identify the correspondence of the wire between both ends of a multi-core cable with a simpler structure.

[0005]

DISCLOSURE OF THE INVENTION According to the present invention, a mutual correspondence between a wire on one end side and a wire on the other end of a multi-core cable formed by bundling a plurality of wires insulated from each other is identified. In the method, at one end side, a signal output from each of the other strands other than the last strand in the constant strand arrangement order is transmitted to the next strand in the strand arrangement order by the other strands. The process of connecting the strands to each subsequent strand, the process of sequentially inputting an electric signal to each strand at the other end side, and the process of connecting the strands to the other end of any strand other than the strand to which the electric signal is input. Check whether or not an electric signal is output from the wire, and when no output is obtained from any of the wires, a process of specifying the wire that input the electric signal at that time as the last wire of the array, and other At the end side, the output of the electric signal input from the already specified strand is obtained. If the output is obtained from the wire already specified, the wire input with the electrical signal at that time is specified as the wire immediately before in the array order of the wire already specified. The method for identifying a wire-correspondence relationship of a multi-core cable is provided by sequentially specifying one by one from the last wire to the first wire in the arrangement order on the other end side.

Further, the present invention is an apparatus for identifying a mutual correspondence between a wire on one end side and a wire on the other end of a multi-core cable formed by bundling a plurality of wires insulated from each other. In order that the signal output from each of the other strands except the last one in the constant strand arrangement order is transmitted to the next strand in the arrangement sequence, Next wire connecting means for connecting to the wire, and signal input means for sequentially inputting an electric signal to each wire at the other end side,
On the other end side, there is a wire number identifying means for checking whether or not an electrical signal is output from any of the strands other than the strands to which the electrical signal is input. When the output is not obtained from the wire, the wire to which the electric signal at that time is input is specified as the last wire in the arrangement order, and when the output is obtained from the wire already specified, the electric current at that time is specified. The strand to which the signal is input is specified as the strand immediately before in the arrangement sequence of the already-identified strands, so that the strands from the last strand to the first strand in the arrangement sequence are sequentially identified. Provided is a wire-correspondence identifying device for a core cable.

[0007]

[Function] On one end side of the multi-core cable, each strand is connected to each next strand according to a fixed strand arrangement sequence, and the output signal from each strand is transmitted to the next strand. To be However, the output signal from the last strand of the array is not transmitted to any of the other strands. At the other end of the cable, an electric signal is sequentially input to each wire, and it is checked whether the electric signal is output from any wire other than the input wire. If no electrical signal is output from any of the strands, the strand to which the electrical signal is input is specified as the last strand in the array. In this way, when the last strand has been identified, it is next checked whether or not an electrical signal is output from the identified last strand. Then, when the electric signal is output from the last strand, the strand to which the electric signal is input is specified as the strand before the last strand in the array. Less than,
Similarly, when an electric signal is output from a wire already specified, the wire to which the electric signal is input is the wire just before the specified wire, and the array The first strand of is sequentially specified.

[0008]

FIG. 1 shows an embodiment of the present invention. The code 1 is
Multicore cable 2 consisting of a group of a plurality of strands 21 to 25
It is the next wire connection adapter that is attached to the side of the existing wiring. This adapter 1 includes photo couplers 11 to 11.
15 and resistors 16 to 20 are combined as shown. That is, the photocouplers 11 to 15 are provided so as to couple the existing wires 21 to 25 to the next element wire (element wire on the left side in the drawing) in a fixed arrangement order. The signal input from the adapter 1 to the adapter 1 is transmitted to the strand next to the left. However, the input signal from the last strand 25 (hereinafter referred to as the final strand) in the arrangement order is not transmitted to any of the strands. Cable to be identified 2
The input / output changeover switch 3 is attached to the end portion on the side opposite to the existing wiring side (hereinafter referred to as the input side), and each of the wires 21 to 25 of the DC power source 4 or the wire number identification circuit 5 is attached by this switch 3. It is adapted to be selectively connected to any of the input terminals corresponding to the strands. The output data of the wire number identification circuit 5 is stored in the digital memory 6. The wire number identification circuit 5 and the digital memory 6 are connected to the sequence control circuit 7.

In such a configuration, first, the total number of cores (number of strands) of the cable to be identified 2 is set in the digital memory 6 by the sequence control circuit 7. Next, the sequence control circuit 7 gives the wire number identification circuit 5 information without an output signal. This information is information for comparison with the signal output from the cable 2 to be identified in the wire number identification circuit 5.

Subsequently, the sequence control circuit 7 gives control information for performing the comparison / determination operation to the wire number identification circuit 5. The wire number identification circuit 5 switches the switch 3, and sequentially applies power to each of the wires 21 to 25 of the cable to be identified 2 according to the arrangement order on the input side. For example, the power source 4 is sequentially applied to each strand starting from the strand 24 at the right end in the figure to the strand 25 at the left end.

When power is applied to a certain wire, an input signal to the wire is input from the wire (hereinafter referred to as the input wire) via the next wire connecting adapter 1 on the already wired side. Is transmitted to the wire located on the left of the wire, and is input to the wire number identification circuit 5 from the wire on the left. The wire number identification circuit 5 compares this input signal with the previously given information indicating that there is no output, and determines whether or not there is an output signal from the cable 2. In this case, the signals input from the DC power supply 4 to the cable 2 are the wires 21 to 21 other than the final wire 25 on the already wired side.
If it is input to 24, there is always output, but if it is input to the last strand, there is no output. Therefore, when there is an output from the cable 2, the wire number identification circuit 5 switches the switch 3 to apply power to the next strand.
In this way, when the signals from the power source are successively input to the wires of the cable to be identified 2 and the presence or absence of the output from the cable 2 is checked, one input wire with no output is surely found. The input wire is specified as the final wire 25, and the identification number on the input side of the input wire is transmitted from the wire number identification circuit 5 to the digital memory 6.

The digital memory 6 holds the transmitted identification number of the final strand 25 on the input side in association with the total number of cores (that is, the identification number of the final strand 25 on the existing wiring side). Subsequently, the sequence control circuit 7 is notified of the information that the final strand has been specified.

Next, the sequence control circuit 7 supplies the digital memory 6 with information indicating the total number of cores minus 1 (that is, the identification number of the wire 24 immediately before the last wire on the already wired side). The identification number on the input side of the final strand 25 whose identification has been completed is given to the wire number identification circuit 5. The wire number identification circuit 5 to which these pieces of information have been given is again switched to the switch 3
And the power is applied to each strand of the cable to be identified 2 in sequence. The DC voltage is transmitted to the left adjacent wire on the already wired side of the input wire through the next wire connecting adapter 1 from the input wire, and is output from the left wire to the wire number identification circuit 5.
The wire number identifying circuit 5 compares the identification number on the input side of the strand from which this signal was output with the previously assigned identification number on the input side of the final strand 25, and switches 3 until it becomes equal. And the DC voltage is continuously input to the wires of the cable 2 to be identified one by one. Then, when the comparison result becomes equal (that is, when there is a signal output from the final wire 25), the input wire at that time is specified as the wire 24 before this one, and the input of the input wire is input. The identification number on the side is transmitted from the wire number identification circuit 5 to the digital memory 6.
The digital memory 6 stores the identification number in association with a previously given identification number (total number of cores minus 1) on the arranged side of the wires 24.

In the same manner, the wires are specified one by one according to the arrangement order on the existing wire side, and this is repeated until the first wire 21 on the existing wire side is specified on the input side. Finally, the relationship between the existing wiring side and the input side of all strands will be clarified.

[0015]

As described above, according to the present invention,
There is no need to use a test cable that matches the length of the cable to be identified, and there is no need to change the power capacity or threshold value according to the number of strands, so reliable identification is possible with a simple device configuration. Is.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

 Primary wire connection adapter 2 Identified cable 3 Switch 4 DC power supply 5 Wire number identification circuit 6 Digital memory 7 Sequence control circuit

Claims (2)

[Claims] 1. A method for identifying a mutual correspondence relationship between a strand on one end side and a strand on the other end side of a multi-core cable formed by bundling a plurality of strands insulated from each other. Each of the other strands is arranged so that a signal output from each of the other strands except the last strand in the constant strand arrangement order is transmitted to the next strand in the strand arrangement order. A process of connecting to the next strand, a process of sequentially inputting an electrical signal to each strand on the other end side, and a strand of the other end other than the strand to which the electrical signal is input. Checking whether the electric signal is output, when no output is obtained from any of the strands, a process of identifying the strand to which the electrical signal is input as the last strand of the array, On the other end side, the input is made from the already specified strand. Check whether the output of the electrical signal is obtained,
When an output is obtained from the already specified strand, a process of specifying the strand to which the electrical signal has been input as the one previous strand in the arrangement order of the already identified strand, and A method for identifying a correspondence of strands of a multi-core cable, which has the other strand side and thereby sequentially identifies one strand from the last strand to the first strand in the arrangement order. 2. An apparatus for identifying a mutual correspondence between a wire on one end side and a wire on the other end side of a multicore cable formed by bundling a plurality of insulated wires, wherein the one end side includes: Each of the other strands is connected to the next strand in the arrangement sequence so that the signals output from the other strands except the last strand in the constant strand arrangement sequence are transmitted to the next strand in the arrangement sequence. A secondary wire connecting means for coupling to a wire, a signal input means for sequentially inputting an electric signal to each wire at the other end side, and a wire for inputting the electric signal at the other end side A wire number identifying means for checking whether or not the electric signal is output from any of the strands of wire, and the wire number identifying means, when the output is not obtained from any of the wire strands, Of the strand to which the electric signal of is input is the last in the arrangement sequence. Specified as a strand, and when the output is obtained from the strand that has already been identified, the strand to which the electric signal at that time is input is the one before in the arrangement sequence of the strand that has already been identified. A wire-correspondence identifying device for a multi-core cable, which is specified as a wire, thereby sequentially specifying from the last wire to the first wire in the arrangement order.