JP4565413B2 - Wiring connection management system - Google Patents

Description

  The present invention utilizes IC tags in wiring work for connecting various powers and sensors that operate equipment in large-scale power plants, steelworks, chemical plants, and railways, large buildings, and distribution boards. This relates to a system that performs wiring connection management.

  Patent Document 1 describes that an IC tag is attached to a terminal or an intermediate part of a cable to facilitate recognition.

  In Patent Document 2, a cable embedded in a floor or wall of a building is composed of a cable body and connectors attached to both ends of the cable, IC tags are attached to both ends of the cable body, and the IC tag information is read. Thus, it is also described that the cable at the other end is connected to the cable even if it is embedded in a wall or the like.

  Further, in Patent Document 3, in order to check connection terminals such as male and female connectors at both ends of the cable, an IC tag is attached to each of the male and female, and the connection terminal ID of the IC tag is read by an information reading device and connected. Store as state information. At the time of reconnection, it is described that connection terminal ID information is read from an IC tag to determine whether the connection is correct.

JP 2003-203527 A JP 2005-228689 A JP 2006-49022 A

  In the wiring work for connecting various powers and sensors for operating equipment in a large factory to the switchboard 17 shown in FIGS. 1 and 2, a core wire in which a plurality of wires are coated in one cable 11. A multicore cable having 7 is used. Since this core wire 7 must be connected to a predetermined terminal of each counterpart device, each core wire 7 needs to have a core wire number. At present, this core wire number is set accurately, and much time is required for cable connection which is not different from the illustration.

  The reason is that no work mistakes occur in the cable connection work. When constructing equipment and performing a test run, if there is a mistake in connecting the core wire in the multi-core cable in the direction opposite to the drawing instructions, there is a risk of causing an accident in which the motor rotates reversely or the device is damaged. It is necessary to confirm that each core wire is correctly connected according to the design information.

  In the present invention, in order to accurately connect the core wires in the multi-core cable 11 in the wiring between the switchboards and the switchboard wiring in the electrical room in the remote place, one core wire constituting the multi-core cable one by one. The purpose is to make it possible to identify the dedicated IC tags attached to both ends of the core wire and to read the tag information attached to the core wire 7 with an IC tag reader to determine the accuracy of the wiring connection work.

  The object can be solved by the following means.

  An IC having unique ID information at both ends of the core wire in a wiring operation in which a multi-core cable composed of a plurality of core wires is used to connect each of the core wires to each other using a terminal block. The IC tag attached to the core wire has a tag, and after confirming that the core wire is at both ends of the core wire constituting the multi-core cable by confirming whether the core wire is energized or not, the IC tag attached to the core wire has The unique ID information is read, and the read unique ID information is associated with the core wire number designated at the time of design.

  In wiring work that uses a multi-core cable composed of a plurality of core wires and connects each of the core wires to each other using a terminal block between the switchboards, it is inherent to both ends of the multi-core cable and the core wires. An IC tag having ID information is arranged, design information is read from the unique ID information of the IC tag attached to the multicore cable, and the core wire covering color or covering color is digitized based on the design information The number is displayed, and it is confirmed that it is at both ends of the one core wire by using the display. After confirmation, the unique ID information included in the IC tag attached to the core wire is read, and the read unique ID information is displayed. Associate with the core wire number specified at the time of design.

  In the wiring connection management system, the unique ID information of the IC tag attached to the cable on both the inside and outside of the board connected in the terminal block is sequentially read by the IC tag reader, and from the read unique ID information It converts into a core wire number, and the correctness of the connection to the said terminal block is judged by contrast with the design information regarding the connection of the board inner side and the board outer side.

  According to the present invention, a pair of IC tags attached to both ends of one core wire of a long multi-core cable having a plurality of core wires can be confirmed by a reliable method of energization. It is possible to correctly associate the core number designated by the design with the ID.

  A pair of IC tags attached to both ends of one core wire of a long multi-core cable having a plurality of core wires can be easily confirmed by displaying the coating color of the core wire using design information.

  The operator reads the IC tag attached to the core wire with the IC tag reader every time the cable connection work is completed to the terminal block and matches the design information with the core wire number, and the multi-core cable core wire Therefore, it is possible to confirm whether the connection is correct or incorrect, so that the accuracy of the wiring connection work is greatly improved.

  Each time the operator completes the cable connection work to the terminal block, the pair of IC tags attached to the cable inside the terminal block and the core wire connected to the outside of the panel are read to check the connection between the cable and the core wire. It is possible to confirm the correctness or wrongness of the cable connection more reliably.

  As shown in FIG. 2, a switchboard 17 is generally used to supply power to equipment such as a factory and transmit control signals. The switchboard 17 has a large number of terminal blocks 6 for connecting to the cable 11. An IC tag having a unique ID is attached to the terminal block 6 in order to recognize the ID of the terminal block 6 indicated in the drawing. The IC tag attached to the terminal block 6 is referred to as a terminal block IC tag 14.

  Next, a large number of cables 11 connected from devices such as the power unit 18 and sensors installed in each place such as a factory are wired to the switchboard 17 and the like. Since these power unit 18 and the switchboard 17 are usually installed at a considerably distant place, it is difficult to perform the wiring work while confirming both ends of the cable 11 at the same time. Further, in order to reduce wiring work as much as possible, the connection is often made with a multicore cable 11 having a large number of core wires 7 in one cable 11.

  Generally, the covering colors of the core wires 7 are color-coded so that the plurality of core wires 7 included in the multi-core cable 11 are correctly connected to the target terminal block. In addition, in order to perform the wiring work, the operator is prepared with an instructed drawing indicating which core wire 7 of which multi-core cable 11 should be connected to which location on the terminal block 6.

  In this drawing, a core wire number for recognizing the core wire 7ID is further displayed for each core wire 7. This core wire number is attached to both ends of each core wire 7 based on the color of the cable surface. Until now, in order to display this core wire number, a short circular tube with a hole was inserted into the core wire 7. This circular tube is commonly called a wire number collar 10. As shown in FIG. 1, numeric characters are printed on the surface of the wire number collar 10, and in the case of a three-digit core wire number, the wire number collar 10 on which three types of numbers are printed is inserted, and the core wire number is changed. The number on the surface of the wire number collar 10 can be confirmed.

  A tag in which an IC tag 3 storing a unique ID attached to the core wire 7 is embedded instead of the wire number collar 10 is referred to as a cable IC tag 2. The core wire 7 is inserted into each of the holes using the cable IC tag 2. As shown in FIG. 13, the main cable IC tag 19 with the IC tag 3 is also attached to both ends of the cable 11.

  As shown in FIG. 10, in order to avoid erroneously reading radio waves from the cable IC tag 2 of the adjacent core wire 7, the cable IC tag 2 has a directivity such as a 2.45 GHz band having a short-range radio wave transmission capability. It is desirable that a strong IC tag 3 is embedded. Therefore, the directivity of the 2.45 GHz band or the like is strong, and in the case of the short distance type IC tag 3, the IC tag 3 can always be positioned facing the front so that the IC tag reader 15 and the IC tag 3 can face each other. Must be. Therefore, it is preferable to give a light elastic force to the inner diameter side of the cable IC tag 2 and to have a function of holding the core wire 7 from the outside. In FIG. 10, the cable IC tag 2 has a structure in which the outer shape of the core wire 7 is held using a force by which an elliptical tube body made of a rubber material returns more flatly.

  By having such a structure, even if there is a slight dimensional difference between the outer shape of the core wire 7 and the inner diameter of the cable IC tag 2, the cable IC tag 2 having the same shape can be used. If there is a gap between the outer shape of the core wire 7 and the inner diameter of the wire number collar 10 as in the case of the wire number collar 10 used so far, the cable IC tag 2 will easily rotate, and the position of the IC tag 3 will not match. The IC tag reader 15 may not be able to read easily. In order to ensure a small pressing force on the outer periphery of the cable 7, the means using the force of returning the elliptical tubular body to a more flat shape has been described. However, other means can have the same function.

  As shown in FIG. 6, after laying the cable 11 from the switchboard side to the device side, the cable 11 is cut to an appropriate length. Next, the coating of the multicore cable 11 is peeled off, the core wires 7 are separated one by one, and the core wire 7 is inserted into the cable IC tag 2 to which the IC tag 2 is attached.

  Furthermore, after performing the operation | work which peels the coating | cover on the surface of the core wire 7, the connection terminal 4 for connecting to the terminal block 6 is crimped and attached to the both ends of the core wire 7. FIG. The IC tag 3 attached to the cable IC tag 2 has an electronic circuit that cannot be written from the outside, and a unique ID is written at the time of manufacture. The number recorded on the IC tag 3 is referred to as a unique ID.

  After all the connection terminals 4 of one cable have been attached, the unique ID of the IC tag 3 attached to the cable IC tag 2 is associated with the core wire number designated at the time of design. Since the unique ID stored in the IC tag 3 is a unique ID, it is a number with a large number of digits. Therefore, it cannot be used for the core wire number. When the IC tag 3 is used for wiring work, it is necessary to associate the core wire number with the unique ID of the IC tag 3.

  In order to read the unique ID of the IC tag 3, the ID reading device 1 is used. The ID reading device 1 is arranged at both ends of the cable 11 at the same time so that the unique IDs of the IC tags 3 at both ends of the cable 11 can be read simultaneously. For this purpose, the ID reading device 1 sandwiches the connection terminals 4 attached to at least two core wires 7 as shown in FIG. 3, and applies a weak current from the power source 9 to the core wires 7 as shown in FIG. Then, energization is detected by an ammeter or the like 8 and it is confirmed that the two core wires 7 are correctly selected. When energization cannot be confirmed, it indicates that the core wire 7 set in the ID reading device 1 is different at both ends.

  One of the two core wires 7 is a reference cable. The reference cable does not remove the unique IDs of the IC tags 3 of all the core wires 7 in the cable until reading is completed. In order to prevent noise to the cable 11 for the reference cable, a shield wire incorporated in the cable 11 or a ground wire for the power cable may be used.

  As shown in FIG. 3, in order to confirm the energization of the cable 11, the ID reading device 1 is simultaneously attached to both ends of the cable 11 at a remote location. An ID input capable of transmitting data of the ID reading device 1 to the personal computer 16 and a transmitter 5 are connected to both of the ID reading devices 1.

  After energization of the two core wires 7 is confirmed, the ID reading devices 1 attached to both ends of the cable 11 simultaneously read the unique IDs of the IC tags 3 at both ends of the cable. Input the ID, judge from the covering color of the core wire 7 to the transmitter 5, input the core wire number, input the unique ID and core wire number of the read IC tag 3, and input the transmitter 5 and the information transmitter 16-1. Use to transmit wirelessly. The association between the unique ID of the IC tag 3 and the core wire number is stored in the personal computer 16. Since this work is performed at a remote location, an operator having a communication means such as a radio works while keeping contact with both ends of the cable 11. The transmission of the unique ID to the personal computer 16 is not limited to the wireless method.

  This operation is performed on all the core wires 7.

  Next, the connection terminal 4 attached to the core wire 7 is fastened to a predetermined terminal block 6 with a screw or the like with reference to the covering color of the core wire 7 in accordance with the illustrated instructions.

  As shown in FIG. 8, after the connection of one terminal block 6 is completed, the terminal block IC tag 14 is read by the IC tag reader 15 and then attached to the core wire 7 in order to check the cable connection state of the terminal block 6. The unique ID of the IC tag 3 is sequentially read out by the IC tag reader 15 and wirelessly transmitted to the personal computer 16 together with the connection position information of the terminal block 6 using the information transmitter 16-1. The unique ID of the IC tag 3 attached to the terminal block 6 and the core wire 7 is converted into the terminal block ID and the core wire number.

  With the information from the terminal block IC tag 14, the connection information related to the terminal block 6 is extracted from the drawing information data stored in the personal computer 16. The core wire number read by the IC tag reader 15 is matched with the drawing information data of each terminal block 6 stored in the personal computer 16. Whether the wiring work is correct or incorrect can be determined by matching the drawing information data and the read core wire number. At this time, each worker is given an electronic ID, and the electronic ID of the worker is read by the IC tag reader 15 each time the terminal block 6 is completed, and who has performed the operation of which terminal block 6 if transmitted simultaneously. It becomes possible to leave a record accurately.

  If a mobile type recording medium can be used for the IC tag reader 15 and design connection drawing instruction data can be input, the IC tag reader 15 can determine whether the work has passed or not and display it. Alternatively, it is possible to connect the IC tag reader 15 to the personal computer 16 and input the drawing information data stored in the personal computer 16 to the IC tag reader 15.

  After the cable connection to the terminal block 6 is completed, if a function for taking a digital photograph is added to the IC tag reader 15 in order to record the visual finish state of the work, a visual judgment of the work of the connected cable is performed. Information can be recorded for each terminal block 6 as a record.

Since both ends of the cable 11 are at remote locations, the work is performed while communicating between the workers by radio or the like, but mistakes are likely to occur. In order to prevent this, as shown in FIG. 13, when the cable 11 is extended, the main cable IC tag 19 with the IC tag 3 attached is attached to both ends of the cable 11, and the unique ID of the cable 11 is assigned to the IC tag reader 15. Read and send to personal computer 16. The unique ID is associated with the cable wire number.
Next, when attaching the connection terminal 4 to the ID reading device 1, it is determined and set based on the coating color of the core wire 7 while communicating between the workers. In order to indicate the covering color of the core wire 7 to be set, a display device 20 made of a liquid crystal display screen or the like is attached in the ID reading device 1.

  In the work flow, the unique ID of the main cable IC tag 19 is read by the IC tag reader 15 and the unique ID information is associated with the cable wire number. The wiring covering color of the core wire 7 is read from the design information by the personal computer 16 and the covering color of the core wire 7 set in the ID reading device 1 is displayed in the same color on the display 20 using the read design information. This display is simultaneously performed by the ID reading devices 1 arranged at both ends of the core wire 7, and the operator simply sets the core wire 7 only by checking the color of the display 20 screen. Can reduce mistakes in 4 sets of wiring terminals.

  In the embodiment, it has been described that the covering color of the core wire 7 is displayed using a liquid crystal display screen or the like. However, since the liquid crystal display screen may be difficult to see due to outdoor work or the like, a numerical number is first given for each color of the covering color. The same effect can be achieved by deciding on and displaying with numbers.

  When the cable IC tag 2 is attached to the connection portion of the cable inside the panel with the terminal block 6 as shown in FIG. 11, the cable IC tag 2- attached to the cable inside the panel after the cable connection is finished. 1 and the cable IC tag 2-2 attached to the core wire 7 on the outside of the panel are alternately read by the IC tag reader 15 and the information is transmitted to the personal computer 16 so that correct or incorrect connection work can be performed. Can be judged. When the core wire 7 is connected, the operator alternately turns the cable IC tag 2-1 attached to the cable inside the board and the cable IC tag 2-2 attached to the cable 7 outside the board on the spot, If the tag reader 15 performs reading confirmation, it is possible to proceed with the cable connection work while checking one by one.

  After reading the unique ID of the cable IC tag 2-1 attached to the cable inside the panel with the IC tag reader 15, which core wire 7 of the cable 7 outside the panel should be connected by voice guidance from the IC tag reader 15, It is also possible to specify the covering color of the core wire 7 and give a work instruction.

  The case where the core wire 7 is connected via the terminal block 6 has been described above. However, inside the large device, as shown in FIG. May be connected. In this case, the cable IC tag 2 is attached to both the core wires 7 to be connected, and after the connection is completed, the unique ID information of both is read by the IC tag reader 15. The personal computer 16 associates the read unique ID with the core wire number. It is possible to compare with the design data from this core wire number information, and to notify the operator of the correctness or error of the connection.

  As described above, the connection information for each terminal block 6 is left in the personal computer 16 and can be used as data for grasping the work progress of the entire wiring work. The work progress management of the wiring work can be roughly divided into work for extending the cable 11 and work for connecting the wiring (connection work). It is possible to grasp the work progress fairly accurately from the amount of digestion of the cable 11, etc., but the wire connection work is very difficult to grasp because the work contents are fine and the work places are scattered. is there.

  At the design stage, the total number of wire connections can be calculated. Since it is possible to obtain the connection completion information of the cable IC tag 2 every day, it is possible to accurately grasp the progress of the daily connection work and the degree of work completion determined from the total work amount.

  After the wiring work is completed, if there is a difference between the work result and the drawing instruction for transmitting information for each terminal block 6, the result is rejected, the defective part is confirmed, and the wiring work is performed again. It is possible to accumulate data for each worker as to whether or not such a situation has occurred a plurality of times, and to grasp the skill of the worker. It is possible to determine whether or not re-education is necessary by using such data for determining the skill of the individual worker. Also, the work volume for each worker can be accumulated in the same manner.

  The case of cable connection at a distant place has been described. For example, when connecting the panels 17 and devices arranged at the same place, the cable is cut before wiring work and both ends of the cable 7 are connected. In many cases, the connection terminal 4 is crimped. The same work is performed for the wiring work in the switchboard 17 and the operation panel.

  In this case, the ID reading device 1 is attached to both ends of the core wire 7 in the same manner as described above, and the unique ID of the IC tag 3 of the cable IC tag 2 can be associated with the cable wire number.

  In the above description, the embodiment has been described with respect to a cable using a metal conductor. However, in recent years, an optical fiber cable is increasingly used in the field of communication. An optical fiber cable is also composed of a core wire 7 in which a single cable 11 is covered with many core wires. In this case, the same effect can be expected by attaching the cable IC tag 2 having the IC tag 3 to both ends of the core wire 7 as shown in FIG. At that time, it is necessary to provide the ID reader 1 with a mechanism capable of confirming the continuity of the cable with light.

The figure which shows an example of the cable connection to a terminal block by a prior art. The figure which shows an example of the connection state of the inside of a switchboard etc., a terminal block, and a cable. The front view which shows an example of writing to a cable IC tag using ID reading apparatus. The top view which shows an example of the writing to a cable IC tag using ID reading apparatus. The figure which shows an example which confirms that the cable IC tag of both ends is attached to the same cable. 1 is a configuration diagram of a cable connection management system using a wireless IC tag. The figure which shows an example of reading of cable IC tag information using an IC tag reader. The AA arrow directional view of the terminal block shown in FIG. The core wire of a terminal block part, and BB sectional drawing of a cable IC tag. The figure which shows an example which connected the core wires directly, without using a terminal block. The figure which shows an example which attached the cable IC tag also to the cable inside a panel in a terminal block part. The work flowchart of a cable connection work using a cable IC tag. The front view which shows an example of ID reading apparatus which has a display.

DESCRIPTION OF SYMBOLS 1 ... ID reader 1-1 ... Writer 2 ... Cable IC tag 3 ... IC tag 4 ... Connection terminal 5 ... ID input , Transmitter 6 ... terminal block 7 ... core wire 8 ... ammeter, etc. 9 ... power supply 10 ... wire number collar 11 ... cable 14 ... Terminal block IC tag 15 ... IC tag reader 16 ... Work management center 16-1 ... Information transmitter 17 ... Switchboard 18 ... Power unit 19 ... main cable IC tag 20 ... indicator

Claims (3)

  An IC having unique ID information at both ends of the core wire in a wiring operation in which a multi-core cable composed of a plurality of core wires is used to connect each of the core wires to each other using a terminal block. The IC tag attached to the core wire has a tag, and after confirming that the core wire is at both ends of the core wire constituting the multi-core cable by confirming whether the core wire is energized or not, the IC tag attached to the core wire has A wiring connection management system that reads unique ID information and associates the read unique ID information with a core wire number designated at the time of design.   In wiring work that uses a multi-core cable composed of a plurality of core wires and connects each of the core wires to each other using a terminal block between the switchboards, it is inherent to both ends of the multi-core cable and the core wires. An IC tag having ID information is arranged, design information is read from the unique ID information of the IC tag attached to the multicore cable, and the core wire covering color or covering color is digitized based on the design information The number is displayed, and it is confirmed that it is at both ends of the one core wire by using the display. After confirmation, the unique ID information included in the IC tag attached to the core wire is read, and the read unique ID information is displayed. A wiring connection management system characterized by associating with a core wire number designated at the time of design. 3. The wiring connection management system according to claim 1, wherein the unique ID information of the IC tag attached to the panel inner cable connected to the terminal block and the core wire outside the panel is sequentially read by an IC tag reader. Then, the read unique ID information is converted into a cable wire number and a core wire number, and it is judged whether the connection to the terminal block is correct or not in comparison with the design information relating to the connection between the inside and outside of the panel. Wiring connection management system.