JP4606237B2 - Method for detecting an incorrect cable connection between electronic devices, an incorrect cable detection system - Google Patents

Description

  The present invention relates to a cable misconnection detection method and a cable misconnection detection device when a cable connector is connected to a cable connection connector of an electronic device.

Conventionally, in order to prevent erroneous connection of a cable to each connector portion of an electronic device having a plurality of connector portions having the same shape, the following method has been taken.
That is, as shown in FIG. 2, a key groove 111 </ b> A for preventing erroneous insertion unique to each of the connector portions 111 to 114, 121, 122, 131, 132 of the first device 110, the second device 120, and the third device 130. 114A, 121A, 122A, 131A, 132A, and convex portions 140a, 140b corresponding to the above-mentioned key grooves 111A-114A, 121A, 122A, 131A, 132A in the connector portions of the cables 140, 150, 160, 170, respectively. Alternatively, there is a method of providing connectors 170a and 170b and connecting the connector portions so that the corresponding key grooves and convex portions (for example, the convex portions 140a correspond to the key grooves 111A) are fitted.
Further, the connector portions 211 to 214, 221, 222, 231, and 232 of the first device 210, the second device 220, and the third device 230 shown in FIG. The same color is also applied to each of the connector portions 240 to 270 (for example, “red” is applied to the first connector portion 211 of the first device 210, “yellow” is applied to the second connector portion 212 of the first device 210, and the first device 210 is “white”, the fourth connector portion 214 of the first device 210 is “purple”, the first connector portion 221 of the second device 220 is “blue”, and the second connector of the second device 220 is “second”. The unit 222 is labeled “green”, the first connector unit 231 of the third device 230 is labeled “black”, the second connector unit 232 of the third device 230 is labeled “orange”, and the first connector unit 211 of the first device 210 First corresponding to The first connector portion 240A of the cable 240 is “red”, the first connector portion 250A of the second cable 250 corresponding to the second connector portion 212 of the first device 210 is “yellow”, and the third portion of the first device 210 is The first connector portion 260A of the third cable 260 corresponding to the connector portion 213 is “white”, and the first connector portion 270A of the fourth cable 270 corresponding to the fourth connector portion 214 of the first device 210 is “purple”. The second connector portion 240B of the first cable 240 corresponding to the first connector portion 221 of the second device 220 is “blue”, and the second of the second cable 250 corresponding to the second connector portion 222 of the second device 220 is second. The connector portion 250B is “green”, the second connector portion 260B of the third cable 260 corresponding to the first connector portion 231 of the third device 230 is “black”, and the third device 230 is The second connector part 270B of the fourth cable 270 corresponding to the second connector portion 232 is subjected to "orange".), A technique for connecting the connector portions of the same color are present.
In addition, each connector portion of the first device 210, the second device 220, and the third device 230 is given a unique number instead of a color, and the same number is also given to the connector portion of the cable corresponding to each connector portion. (For example, “1” for the first connector portion 211 of the first device 210, “3” for the second connector portion 212 of the first device 210, “5” for the third connector portion 213 of the first device 210, “7” in the fourth connector portion 214 of the device 210, “2” in the first connector portion 221 of the second device 220, “4” in the second connector portion 222 of the second device 220, and the first of the third device 230. “6” is attached to the connector portion 231, “8” is attached to the second connector portion 232 of the third device 230, and the first connector portion 240 A of the first cable 240 corresponding to the first connector portion 211 of the first device 210 is attached. Is "1", first device 2 “3” for the first connector portion 250 A of the second cable 250 corresponding to the second connector portion 212 of 0, and the first connector portion 260 A of the third cable 260 corresponding to the third connector portion 213 of the first device 210. “5”, “7” for the first connector portion 270A of the fourth cable 270 corresponding to the fourth connector portion 214 of the first device 210, and the first cable corresponding to the first connector portion 221 of the second device 220. The second connector portion 240B of the second connector 240B is “2”, the second connector portion 250B of the second cable 250 corresponding to the second connector portion 222 of the second device 220 is “4”, the first connector of the third device 230. The second connector 260B of the third cable 260 corresponding to the portion 231 is “6”, and the second connector of the fourth cable 270 corresponding to the second connector 232 of the third device 230 is selected. The part 270B denoted by "8".), There is also a method to connect the connector portions of the same number.
JP 2001-015939 A JP 2001-021066 A

  However, in these methods, in order to finally determine whether there is a cable misconnection, it is necessary to turn on the main power of each device and check whether each device operates normally. Become. In addition, when each device is operated, there is a possibility that the device may be damaged if there is an incorrect connection of the cable.

  The present invention was devised based on such a background, and after connecting the cable, the main power supply is turned on, and it is not necessary to check whether each device operates normally. The problem is to provide a technique that can be detected.

The method of the present invention is a method for detecting an erroneous connection of a cable between electronic devices by a system including a plurality of electronic devices each having a plurality of connector portions and a cable, and the connector portion of the first electronic device is connected to the first electronic device. The connector portion of the electronic device is connected via the first cable by connecting the connector portion of the second electronic device to the connector portion on the other end side of the first cable while connecting to the connector portion on one end side of the one cable. A step of connecting each other, connecting a power source for detecting misconnection different from a power source for operating the first electronic device to the connector portion of the first electronic device, and a connector portion of the first electronic device, And a step of confirming whether or not the corresponding connector part of the second electronic device is conductive.
The continuity is confirmed by confirming whether or not continuity is made, for example, by passing a current or applying a voltage between these connector portions.
According to this method, is the first electronic device connected to the second electronic device using a power supply for detecting misconnection other than the power source for operating the first electronic device in the connector portion of the first electronic device? This makes it possible to confirm that the cable is properly connected, so there is no need to check whether each electronic device operates normally by turning on the main power of each electronic device. A cable misconnection can be detected without damaging the electronic device.

This method includes a step of mutually connecting other connector parts other than the connector part confirmed to be conductive by the first cable via a second cable, and detecting the erroneous connection to the connector part of the first electronic device. There may be further included a step of confirming whether or not the connector part of the first electronic device and the pair of connector parts connected by the second cable are connected to each other by connecting a power source for operation.
In this way, it is possible to sequentially detect erroneous connection of cables using a single erroneous connection detection power source.

  Each of the connector portions may be provided with a plurality of connection terminals, and the erroneous connection detection power source may be connected to any one of the connection terminals.

  Also, a first closed circuit formed including a connector portion connected by a first cable and a second closed circuit formed including a connector portion connected by a first cable and a second cable are selectively used. By switching to, sequential continuity confirmation starting from the first electronic device may be made possible. Here, the “closed circuit” refers to a general circuit configured such that a current flows during power feeding, for example.

In the said method, you may comprise so that the conduction by a 1st cable or a 2nd cable may be confirmed by the conduction confirmation means which can be recognized by five senses. As the conduction confirmation means that can be recognized by such five senses, for example, a light emitter that emits light when conducting, or a device that emits sound when conducting can be used. For example, a light emitting diode or a lamp can be used as the light emitter.
By using such continuity confirmation means, it is possible to confirm whether or not it is conducting at a glance based on the presence or absence of lighting, or to confirm whether or not it is conducting based on the presence or absence of sound.

The method of the present invention as described above can be realized by the following cable misconnection detection system of the present invention.
That is, the cable misconnection detection system of the present invention includes a cable for connecting a plurality of electronic devices each having a plurality of connector portions, a misconnection detection device for detecting a misconnection between electronic devices including the cable, A power supply for detecting misconnection that is different from a power source for operating the electronic device, and the misconnection detecting device is a connector of a pair of electronic devices that are to be detected by misconnection connected by the cable. Connecting the erroneous connection detection power source to the connector portion of one of the electronic devices, and determining whether the connector portion of the one electronic device and the connector portion of the other electronic device corresponding thereto are conductive. It is to confirm.

  The cable is provided with connector portions at one end and the other end thereof, and the plurality of electronic devices are provided with connector portions having the same shape, respectively, and are provided in the cable and the plurality of electronic devices. Each connector part is provided with a plurality of connection terminals, and the erroneous connection detection power source is a first connection of a first connector part provided in a first electronic device as a starting point among the plurality of electronic devices. The erroneous connection detection device is connected to a terminal, and the erroneous connection detection device includes a second connector corresponding to the first connection terminal among the connection terminals of the second connector unit included in the second electronic device connected via the cable. It may be connected to a connection terminal.

  In addition, the erroneous connection detection device includes a first closed circuit formed including the first connector portion and the second connector portion, and the first connector portion, the second connector portion, and the second electronic device. You may make it have a switch means which selectively switches between the 2nd closed circuit formed including the 3rd connector part connected to any other provided connector parts.

The erroneous connection detection device may include a conduction confirmation unit that can be recognized by the five senses and indicates that the first closed circuit or the second closed circuit is conducted.
As described above, as the continuity confirmation means, for example, a light emitter or a device that emits a sound when continuity can be used.

  According to the present invention, a cable misconnection detection method and a cable error can be detected that can detect a cable misconnection without turning on the main power after the cable connection and confirming whether each device operates normally. A connection detection system can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing an example of the configuration of a cable misconnection detection system 1 according to the present invention. As shown in this figure, the cable misconnection detection system 1 includes a first device 10, a second device 20, and a third device 30 which are electronic devices.

The first device 10 includes a first device-side connector portion 11, a second device-side connector portion 12, a third device-side connector portion 13 and a fourth device-side connector portion 14 which are device-side connector portions for cable connection, 1 lamp 15 and the 2nd lamp | ramp 17, the changeover switch 16, and the power supply 18 for misconnection detection.
These device-side connector parts 11, 12, 13, and 14 have the same shape, and the first pins 11a, 12a, 13a, and 14a... The fourth pins 11b, 12b, 13b, and 14b, the fifth pins 11c, 12c, 13c, 14c, 6th pins 11d, 12d, 13d, 14d, 7th pins 11e, 12e, 13e, 14e,... A plurality of 19th pins 11f, 12f, 13f, 14f. The 4th pin 11b of the 1st apparatus side connector part 11 of this 1st apparatus 10 is connected to the power supply 18 for misconnection detection provided in the 1st apparatus 10, and independent of the main power supply. Further, the fifth pin 12 c of the second device side connector portion 12 is connected to the first lamp 15. The first lamp 15 is in a state where it can be visually recognized from the outside whether or not it is lit. The first lamp 15 is further connected to a changeover switch 16, and by switching the changeover switch 16, the first lamp 15 is connected to either the ground or the sixth pin 13 d of the third device side connector portion 13. . Further, the seventh pin 14 e of the fourth device side connector portion 14 is connected to the second lamp 17. Like the first lamp 15, the second lamp 17 is in a state where it can be visually recognized from the outside whether or not it is lit. The second lamp 17 is connected to the ground.

The second device 20 includes a first device side connector portion 21, a second device side connector portion 22, which is a device side connector portion for cable connection, a lamp 23, and a changeover switch 24.
These device-side connector portions 21 and 22 have the same shape as the connector portion 11 and the like of the first device 10, and the first pins 21a and 22a,..., Fourth pins 21b and 22b, fifth pins 21c and 22c, 6 pins 21d, 22d, 7th pins 21e, 22e,... A plurality of 19th pins 21f, 22f are provided. The fourth pin 21 b of the first device side connector portion 21 of the second device 20 is connected to the lamp 23. The lamp 23 is connected to a changeover switch 24, and is connected to either the ground or the fifth pin 22 c of the second device side connector section 22 by switching the changeover switch 24.

The third device 30 includes a first device side connector portion 31, a second device side connector portion 32, which is a device side connector portion for cable connection, a lamp 33, and a changeover switch 34.
These device-side connector portions 31 and 32 have the same shape as the connector portions 11 and 21 of the first device 10 and the second device 20, and the first pins 31a and 32a,..., The fourth pins 31b and 32b, 5th pin 31c, 32c, 6th pin 31d, 32d, 7th pin 31e, 32e, ... It has several pins of 19th pin 31f, 32f. The sixth pin 31 d of the first device side connector portion 31 of the third device 30 is connected to the lamp 33. The lamp 33 is connected to a changeover switch 34, and by switching the changeover switch 34, the lamp 33 is connected to either the ground or the seventh pin 32 e of the second device side connector portion 32.

  Similarly to the first lamp 15 of the first device 10, the lamps 23 and 33 of the second device 20 and the third device 30 are in a state where it can be visually recognized from the outside whether or not they are lit.

In the present embodiment, the lamp is used as the continuity confirmation means. However, the present invention is not limited to this, and the continuity confirmation means may be anything that can confirm continuity. It doesn't matter. For example, what can be recognized by the five senses can be used as the conduction confirmation means. As such, a light-emitting body such as a light-emitting diode may be used, or a device that emits a sound when conducting is used.
Further, in the present embodiment, the device side connector portion has been described as having 19 pins, but the present invention is applied when connecting a plurality of devices having the same shape device side connector portion, It is not restricted to this, The shape of the apparatus side connector part of the same shape may be any shape.
In addition, although the cable misconnection detection system of the present embodiment has been described as having three devices, the first device to the third device, the number of devices and the number of device-side connector portions included in each device are not limited. May be. For example, in addition to the first device to the third device, a fourth device may be further included, and the number of device-side connector portions included in the first device may be five. In this case, the second lamp 17 is connected to a new changeover switch instead of the earth, and by switching this changeover switch, the second lamp 17 is connected to either the earth or the pin of the fifth device side connector portion. You may comprise so that the continuity to the 4th apparatus can be confirmed by connecting the pin of the apparatus side connector part of the 4th apparatus corresponding to the pin of the apparatus side connector part to a lamp | ramp.

  Next, when the first device 10 to the third device are connected to each other by connecting the device side connector portions of these devices with the four cables 40, 50, 60, 70, the cable error of the present embodiment will be described. Using the connection detection system, the first device side connector portion 11 of the first device 10 and the first device side connector portion 21 of the second device 20, the second device side connector portion 12 of the first device 10 and the second device. 20, the second device side connector portion 22, the third device side connector portion 13 of the first device 10, the first device side connector portion 31 of the third device 30, and the fourth device side connector portion 14 of the first device 10. A procedure for detecting whether or not the second device-side connector portion 32 of the third device 30 can be connected by the four cables 40, 50, 60, and 70 without being staggered, that is, a cable misconnection is detected. Follow the steps Te will be explained.

First, each change-over switch 16, 24, 34 is connected to the ground, and the erroneous connection detection power supply 18 of the first device 10 is turned on.
When the first device-side connector portion 11 of the first device 10 and the first device-side connector portion 21 of the second device 20 are connected by the cable 40, the first device 10 connected to the erroneous connection detection power source 18 is connected. Current flows from the fourth pin 11b of the first device side connector portion 11 to the corresponding pin of the cable 40 through the fourth pin 21b of the first device side connector portion 21 of the second device 20, and the lamp 23 lights up. To do. When the lamp 23 is lit, it can be confirmed that the first device side connector portion 11 of the first device 10 and the first device side connector portion 21 of the second device 20 are appropriately connected via a cable.
On the other hand, when the first device side connector portion 11 of the first device 10 is connected to the cable 40, the first device side connector portion 21 of the second device 20 is connected to the cable 50, etc. No current flows through the lamp 23 and the lamp 23 is not lit. By detecting that the lamp 23 is not lit, it is detected that the first device-side connector portion 11 of the first device 10 and the first device-side connector portion 21 of the second device 20 are not properly connected via a cable. it can.

When the first device side connector portion 11 of the first device 10 and the first device side connector portion 21 of the second device 20 are appropriately connected via a cable, the changeover switch 24 of the second device 20 is then turned on. By switching, the lamp 23 is connected to the fifth pin 22c of the second device side connector portion 22.
When the second device-side connector portion 22 of the second device 20 and the second device-side connector portion 12 of the first device 10 are connected to both ends of the cable 50, the second device 20 connected to the lamp 23 The current flows to the lamp 15 from the fifth pin 22c of the two-device-side connector portion 22 through the corresponding pin of the cable 50 and the fifth pin 12c of the second-device-side connector portion 12 of the first device 10, and the lamp 15 is lit. When the lamp 15 is turned on, it can be confirmed that the second device-side connector portion 22 of the second device 20 and the second device-side connector portion 12 of the first device 10 are appropriately connected via a cable.
On the other hand, when the second device side connector portion 22 of the second device 20 is connected to the cable 50, but the second device side connector portion 12 of the first device 10 is connected to the cable 60, the lamp 15 No current flows through the lamp 15 and the lamp 15 is not lit. By detecting that the lamp 15 is not lit, it is possible to detect that the second device-side connector portion 22 of the second device 20 and the second device-side connector portion 12 of the first device 10 are not properly connected via a cable. it can.

When the second device side connector portion 22 of the second device 20 and the second device side connector portion 12 of the first device 10 are appropriately connected via a cable, the changeover switch 16 of the first device 10 is switched, The lamp 15 is connected to the sixth pin 13d of the third device side connector part 13.
When the third device side connector portion 13 of the first device 10 and the first device side connector portion 31 of the third device 30 are respectively connected to both ends of the cable 60, the first device 10 connected to the lamp 15 is connected to the first device 10. The current flows to the lamp 33 through the corresponding pin of the cable 60 from the sixth pin 13d of the third device-side connector portion 13 and the sixth pin 13d of the first device-side connector portion 31 of the third device 30, and the lamp 33 is lit. When the lamp 33 is turned on, it can be confirmed that the third device-side connector portion 13 of the first device 10 and the first device-side connector portion 31 of the third device 30 are appropriately connected via a cable.
On the other hand, when the third device side connector portion 13 of the first device 10 is connected to the cable 60, but the first device side connector portion 31 of the third device 30 is connected to the cable 40, the lamp 33 is used. No current flows through the lamp 33 and the lamp 33 is not lit. By detecting that the lamp 33 is not lit, it is detected that the third device-side connector portion 13 of the first device 10 and the first device-side connector portion 31 of the third device 30 are not properly connected via a cable. it can.

When the third device side connector portion 13 of the first device 10 and the first device side connector portion 31 of the third device 30 are appropriately connected via a cable, the changeover switch 34 of the third device 30 is the same as described above. Is switched so that the lamp 33 is connected to the seventh pin 32e of the second device side connector portion 32.
When the second device side connector portion 32 of the third device 30 and the fourth device side connector portion 14 of the first device 10 are respectively connected to both ends of the cable 70, the third device 30 connected to the lamp 33 is connected to the third device 30. The current flows to the lamp 17 through the corresponding pin of the cable 70 from the seventh pin 32e of the two-device-side connector portion 32 and the seventh pin 14e of the fourth-device-side connector portion 14 of the first device 10, and the lamp 17 is lit. When the lamp 17 is turned on, it can be confirmed that the second device-side connector portion 32 of the third device 30 and the fourth device-side connector portion 14 of the first device 10 are appropriately connected via a cable.
On the other hand, when the second device side connector portion 32 of the third device 30 is connected to the cable 70, but the fourth device side connector portion 14 of the first device 10 is connected to the cable 50, the lamp 17 No current flows through the lamp 17 and the lamp 17 is not lit. By detecting that the lamp 17 is not lit, it is possible to detect that the second device side connector portion 32 of the third device 30 and the fourth device side connector portion 14 of the first device 10 are not properly connected via a cable. it can.

  In this way, it is possible to detect erroneous connections of the cables 40, 50, 60, and 70 by sequentially checking whether or not the lamps 23, 15, 33, and 17 are lit.

In the procedure of the present embodiment described above, it has been described that all the changeover switches 16, 24, 34 are connected to the ground and then the erroneous connection detection power source 18 of the first device 10 is turned on. However, the change-over switches 16, 24, and 34 may be appropriately switched to ground.
Further, in this embodiment, the confirmation of continuity has been described as confirming continuity by passing a current between these connector parts, but the present invention is not limited to this. You may make it confirm.

  As described above, according to the cable misconnection detection method and cable misconnection detection system of the present invention, after the cable is connected, the main power is turned on to check whether each device operates normally. In addition, it is possible to detect erroneous connection of cables. In addition, sequential continuity can be confirmed by selectively switching two closed circuits with the changeover switches 24, 16, and 34 to check the lighting of each lamp.

The figure which shows the structure of the cable incorrect connection detection system of this invention. The figure for demonstrating the conventional method of preventing the misconnection of the cable to each connector part of the electronic device which has multiple connector parts of the same shape. The figure for demonstrating the conventional method of preventing the misconnection of the cable to each connector part of the electronic device which has multiple connector parts of the same shape.

Explanation of symbols

1 Incorrect cable connection detection system 10, 110, 210 First equipment 11, 12, 13, 14, 21, 22, 31, 32 Equipment side connector section 15, 17, 23, 33 Lamp 16, 24, 34 Changeover switch 18 Incorrect Connection detection power source 20, 120, 220 Second device 30, 130, 230 Third device 40, 50, 60, 70, 140, 150, 160, 170, 240, 250, 260, 270 Cable

Claims (6)

First, each having two or more connector portions, and a second electronic device, the first, the first for connecting the second electronic device, seen including a second cable, one of the second electronic device 2 The plurality of connector parts are connected via a switch in the second electronic device, and the two connector parts are connected by the switch or one of the connector parts is grounded. A method of detecting an incorrect cable connection between electronic devices,
Together with the first connector portion of the electronic equipment connected to one end of said first cable, connecting the ground can be the connector unit by the switch of the second electronic device to the other end of said first cable, said first The other connector portion of the first electronic device is connected to one end of the second cable, and the connector portion connectable to the connector portion connected to the first cable of the second electronic device via the switch is the second Connecting to the other end of the cable ;
Connecting an erroneous connection detection power source different from a power source for operating the first electronic device to the connector portion to which the first cable of the first electronic device is connected ;
It is confirmed whether the first electronic device and the second electronic device are electrically connected by the first cable by grounding a connector portion connected to the first cable of the second electronic device by the switch. And the stage of
The first electronic device and the second electronic device are connected by connecting the connector portion connected to the first cable of the second electronic device and the connector portion connected to the second cable by the switch. Checking whether or not to conduct by the first cable and the second cable,
Method. The first, each of the connector portion of the second electronic device is used, equipped with a connection terminal of the multiple, of the first cable is connected connector portion of the mis-connection detection power the first electronic device Connect to the connection terminal,
The method of claim 1 . Confirming the first cable, or the first cable and the continuity by the continuity confirmation means that can be recognized by the five senses,
The method according to claim 1 or 2 . First and second electronic devices each having two or more connector portions ;
First and second cables for connecting the first and second electronic devices ;
The first, and and a separate erroneous connection detection power and power supply for operating the second electronic device,
The erroneous connection detection power source is connected to one connector portion of the first electronic device;
Any two connector portions of the second electronic device are connected via a switch in the second electronic device, and the two connector portions are connected by the switch or one of the connector portions is grounded. Configured to
The one connector portion of the first electronic device and the one connector portion of the second electronic device are connected by the first cable, and the other connector portion of the first electronic device and the second electronic device are connected to each other. The other connector part connectable to the one connector part via the switch is connected from the second cable part,
By grounding the one connector part of the second electronic device by the switch, it is confirmed whether or not the first electronic device and the second electronic device are conducted by the first cable. Whether the first electronic device and the second electronic device are electrically connected by the first cable and the second cable by connecting the one connector portion and the other connector portion of the second electronic device . It is to confirm whether or not
Cable misconnection detection system. Each connector of the first and second electronic devices has the same shape and a plurality of connection terminals are arranged,
The first and second cables are configured to be connectable to connection terminals of the connectors,
The erroneous connection detection power source is connected to one of the connection terminals of the one connector part of the first electronic device,
The switch includes a connection terminal connected via the first cable to a connection terminal of the one connector part of the first electronic device to which the connection power source of the one connector part is connected, and the other It is configured to be connectable with a predetermined one connection terminal of the connector part,
The cable misconnection detection system according to claim 4 . It is configured to include conduction confirmation means that can be recognized by the five senses, which indicates that the first cable or the first cable and the second cable are conducting.
The cable misconnection detection system according to claim 5 .

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