JP2005050581A - Power supply cord, power supply code inspection device, and power supply code inspection method - Google Patents

Power supply cord, power supply code inspection device, and power supply code inspection method Download PDF

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Publication number
JP2005050581A
JP2005050581A JP2003203853A JP2003203853A JP2005050581A JP 2005050581 A JP2005050581 A JP 2005050581A JP 2003203853 A JP2003203853 A JP 2003203853A JP 2003203853 A JP2003203853 A JP 2003203853A JP 2005050581 A JP2005050581 A JP 2005050581A
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JP
Japan
Prior art keywords
power
power cord
rfid tag
power line
cord
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP2003203853A
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Japanese (ja)
Inventor
Kenji Matsumoto
健司 松本
Original Assignee
Seiko Epson Corp
セイコーエプソン株式会社
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Publication date
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Priority to JP2003203853A priority Critical patent/JP2005050581A/en
Publication of JP2005050581A publication Critical patent/JP2005050581A/en
Application status is Withdrawn legal-status Critical

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Abstract

A power cord, a power cord inspection device, and a power cord inspection method capable of relatively easily confirming a disconnection of a power line built in a cord such as a power cord in an inspection line such as a power cord. provide.
Communication in which wireless communication is enabled or disabled due to disconnection of a power line or short-circuit between power lines when electrodes connected to an outlet or a plug, a power line connected to the electrodes, and the electrodes are connected. A power cord comprising an RFID tag provided on a power line so as to be in a state.
[Selection] Figure 1

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power cord, a power cord inspection device, and a power cord inspection method. In particular, in an inspection line such as a power cord, a power cord, a power cord inspection device, and a power source capable of relatively easily confirming a disconnection of a power line built into a cord such as a power cord or a short circuit between power lines. It relates to a code inspection method.
[0002]
[Prior art]
Conventionally, in order to check the disconnection of the built-in power line or a short circuit between power lines in cords such as power cords, use a tester or check the operation when power is supplied via the cord. I was confirming.
In the invention described in Patent Document 1, the AC adapter operates normally by providing a light emitting unit and a light emitting circuit connected to the output cord in the output plug of the AC adapter provided at the tip of the output cord derived from the AC adapter main body. When power is supplied to the light emitting circuit, the light emitting unit emits light, and when an abnormality such as failure of the AC adapter body or disconnection of the output cord occurs, power is not supplied to the light emitting circuit and A configuration has been proposed in which the portion does not emit light.
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 5-48258
[0004]
[Problems to be solved by the invention]
However, in the invention described in Patent Document 1, since the light emitting unit emits light when power is supplied, in the inspection of the AC adapter, the work of actually inserting the power plug provided in the AC adapter into an outlet is performed. Otherwise, it could not be confirmed whether or not an abnormality such as failure of the AC adapter main body, disconnection of the output cord, or short-circuit occurred. In addition, the operation for confirming the occurrence of an abnormality requires work such as inserting a power plug into the outlet one by one, and there is a problem that it takes time for the confirmation operation.
[0005]
The present invention has been made to solve the above-described problems, and in a test line such as a power cord, the disconnection of a power line built in a cord such as a power cord is relatively easily confirmed. An object of the present invention is to provide a power cord, a power cord inspection device, and a power cord inspection method that can be used.
[0006]
[Means for Solving the Problems]
The following invention is provided to solve the above-mentioned conventional problems.
[Invention 1]
Invention 1 includes an RFID tag provided on the power line so that wireless communication becomes invalid due to disconnection of the power line or short circuit between the power lines when the electrodes are connected to each other. And a power cord characterized by comprising:
[0007]
With such a configuration, when the power cord is disconnected or short-circuited between the power lines, when the electrodes are connected, the RFID tag wireless communication is in a valid or invalid communication state.
Thereby, according to the communication state with the RFID tag, it is possible to relatively easily recognize the power cord in which the disconnection of the power line or the short circuit between the power lines exists. Therefore, it is possible to remove from the inspection line the power cord that has been recognized as a disconnection of the power line or a short circuit between the power lines. In addition, since it is not necessary for an inspector or the like to perform an operation such as inserting a power plug into an outlet in order to supply power to the power line, the time required for the inspection work of the power cord can be reduced.
[Invention 2]
A second aspect of the present invention is the power cord according to the first aspect, wherein the RFID tag forms a part of the power line as an antenna used for the wireless communication.
[0008]
Thereby, when the power line is disconnected, if the electrode is connected, the antenna becomes invalid, and the invalid power cord in the communication state can be recognized relatively easily as a power cord having a problem. In addition, when a short circuit occurs between the power lines and the electrodes are connected, the inductance of the resonant element of the antenna changes, and the resonant frequency of the antenna changes. Due to this change in the resonance frequency of the antenna, the frequency at which communication was possible becomes the frequency at which communication is not possible, so depending on the communication status, the power cord can be recognized relatively easily as a power cord with a problem. it can.
[Invention 3]
A third aspect of the present invention is the power cord according to the first or second aspect, wherein the RFID tag transmits a response to the confirmation request based on an operation confirmation request received by wireless communication.
[0009]
As a result, a power cord that does not respond to an operation confirmation request can be recognized relatively easily as a power cord having a power line defect.
[Invention 4]
A fourth aspect of the present invention provides the display device according to any one of the first to third aspects, wherein the power line is disconnected or a short circuit between the power lines is present and a frequency band different from the frequency band of the RFID tag. A power cord, further comprising: a display RFID tag different from the RFID tag that controls the display based on a display request received by wireless communication.
[0010]
With such a configuration, the power line is disconnected or the power line is short-circuited by a display RFID tag different from the RFID tag based on a display request received by wireless communication in a frequency band different from the frequency band of the RFID tag. Control is executed to display on the display whether or not there is.
Thereby, if the display of a display is seen, an inspector etc. can recognize the power cord in which the disconnection of a power line or the short circuit between power lines exists.
[Invention 5]
A fifth aspect of the present invention is the power cord according to the fourth aspect, wherein the display unit uses an electrophoretic element for a display portion.
[0011]
Thereby, the inspector etc. can recognize visually that the disconnection of a power line or the short circuit between power lines exists.
[Invention 6]
An invention 6 is the power cord according to any one of the inventions 1 to 5, wherein the RFID tag includes a ferroelectric memory.
[Invention 7]
A seventh aspect of the present invention is a power cord inspection apparatus comprising the power cord according to any one of the first to sixth aspects, and a state determination unit that determines a state of a power line built in the power cord. In the power cord inspection apparatus, the state determination unit determines whether or not a break in the power line or a short between the power lines exists in the power cord according to a communication state of the RFID tag. is there.
[0012]
In such a configuration, when the power cord is disconnected or shorted between the power lines, the connection between the electrodes causes the RFID tag communication state to be either valid or invalid. Then, the disconnection determining means determines whether or not there is a disconnection of the power line or a short between the power lines in the power cord according to the communication state with the RFID tag.
[0013]
Thereby, according to the communication state with the RFID tag, it is possible to relatively easily recognize the power cord in which the disconnection of the power line or the short circuit between the power lines exists. Therefore, it is possible to remove from the inspection line the power cord that has been recognized as a disconnection of the power line or a short circuit between the power lines. In addition, since it is not necessary for an inspector or the like to perform an operation such as inserting a power plug into an outlet in order to supply power to the power line, the time required for the inspection work of the power cord can be reduced.
[Invention 8]
The invention 8 is the invention 7 according to the invention 7, wherein the state determination means executes an operation confirmation request for determining whether or not a disconnection of the power line or a short circuit between the power lines exists in the RFID tag, When there is no response from the RFID tag to the confirmation request, there is a disconnection of the power line or a short between the power lines when there is no response from the RFID tag to the confirmation request. And a state recognizing means for recognizing that the power cord is present.
[0014]
In such a configuration, the response monitoring unit executes an operation confirmation request for determining whether or not a power line disconnection or a short-circuit between power lines exists in the RFID tag, and the RFID tag in response to the confirmation request The presence or absence of a response from is monitored. Further, when there is no response from the RFID tag to the confirmation request by the state recognition means, it is recognized that the power cord is disconnected or short-circuited between the power lines.
[0015]
Thereby, it is possible to relatively easily recognize the power cord in which the disconnection of the power line or the short circuit between the power lines exists. Therefore, it is possible to remove from the inspection line the power cord that has been recognized as a disconnection of the power line or a short circuit between the power lines.
[Invention 9]
A ninth aspect of the present invention is a power cord inspection apparatus comprising: the power cord according to the fourth or fifth aspect; and a state determination unit that determines a state of a power line built in the power cord. , Execute an operation confirmation request to determine whether or not the power line is disconnected or short-circuited between the power lines, and monitor whether there is a response from the RFID tag to the confirmation request Response monitoring means, and a state recognition means for recognizing that the power cord is disconnected or short-circuited between the power lines when there is no response from the RFID tag to the confirmation request, and the power cord A display request for displaying on the display the result of determining whether or not there is a disconnection of the power line or a short circuit between the power lines,示用 to the RFID tag, a power cord inspection apparatus characterized by comprising a display request means for performing, the.
[0016]
In such a configuration, the response monitoring unit executes an operation confirmation request for determining whether or not a power line disconnection or a short-circuit between power lines exists in the RFID tag, and the RFID tag in response to the confirmation request The presence or absence of a response from is monitored. Further, when there is no response from the RFID tag to the confirmation request by the state recognition means, it is recognized that the power cord is disconnected or short-circuited between the power lines. In addition, a display request is executed by the display request means for displaying on the display the result of determining whether or not there is a disconnection of the power line or a short between the power lines in the power cord.
[0017]
Thereby, if the display of a display is seen, an inspector etc. can recognize the power cord in which the disconnection of a power line or the short circuit between power lines exists.
[Invention 10]
A tenth aspect of the present invention is the power cord inspection apparatus according to any one of the seventh to ninth aspects, wherein the state determination means includes a ferroelectric memory.
[Invention 11]
An eleventh aspect of the invention is a power cord inspection method for inspecting a power cord according to any one of the first to sixth aspects, the step of connecting the electrodes of the power cord, and the RFID tag of the power cord Determining whether or not there is a disconnection of the power line or a short between the power lines in the power cord according to the step of requesting confirmation of operation and the presence or absence of a response from the RFID tag to the confirmation request Discriminating between the power cord in which a disconnection of the power line or a short circuit between the power lines exists and the power cord in which a disconnection of the power line or a short circuit between the power lines does not exist; A power cord inspection method characterized by comprising:
[0018]
Thereby, an effect equivalent to that of the power cord inspection apparatus according to the seventh aspect is obtained.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an example of a conceptual diagram of a power cord inspection apparatus using communication between a power cord and an interrogator using RFID.
The power cord inspection apparatus 100 includes an interrogator 102 and a power cord 104. Using RFID (Radio Frequency Identification), which is an automatic recognition technology for data communication by wireless communication, the interrogator 102 has a reader / writer function not shown, and the power cord 104 has an IC not shown. An RFID tag including a chip and an antenna is provided inside, and wirelessly communicates between the interrogator 102 and the power cord 104 as shown in FIG.
[0020]
The power cord 104 includes a male connection terminal 106 and a female connection terminal 108. In order to inspect whether the power cord 104 is disconnected or short-circuited between power lines, an interrogator is used. When performing wireless communication between 102 and the power cord 104, the electrode of the male connection terminal 106 is connected.
The interrogator 102 confirms whether the RFID tag of the power cord 104 is operating normally to the power cord 104 that exists within a communicable range (hereinafter referred to as “communication area”). Further, the power cord 104 transmits a corresponding response to the interrogator 102 based on the confirmation request from the interrogator 102. In the following description, it is assumed that there is one power cord 104 present in the communication area.
[0021]
The power cord inspection device 100 cannot communicate between the interrogator 102 and the power cord 104 due to a disconnection of a power line built in the power cord 104 or a short circuit between the power lines (hereinafter referred to as “power line malfunction”). Become. As a result, the power cord 104 that cannot communicate is recognized as a power cord that has a power line defect. The power cord 104 includes a display unit 110, and further includes a display RFID tag including an IC chip and a sub-antenna (not shown) inside the power cord 104. When there is a power line defect, the interrogator 102 The display request from the display unit 110 is received via the sub-antenna, and the display portion of the display unit 110 using the electrophoretic element is always displayed based on the received display request.
[0022]
FIG. 2 is an example of a schematic diagram of the male connection terminal 106 of the power cord 104.
As shown in FIG. 2, one end of a power line 212 is connected to one electrode 202 of the male connection terminal 106, and a part of the power line 212 constitutes a coil portion 206 of the antenna. One end of the power line 214 is connected to the other electrode 204 of the male connection terminal 106. Both ends of the sub-antenna 210 are connected to the two antenna connection terminals of the IC chip 208 of the RFID tag for display, and the two power lines of the display unit 110 are connected to the two connection terminals of the IC chip 208. Yes.
[0023]
FIG. 3 is an example of a schematic diagram of the female connection terminal 108 of the power cord 104.
As shown in FIG. 3, a part of the power line 212 connected to one electrode 202 of the male connection terminal 106 forms a coil portion 306 of the antenna. One end of the coil portion 306 of the antenna is connected to one antenna connection terminal of the IC chip 308 of the RFID tag. The other end of the power line 214 connected to the other electrode 204 of the male connection terminal 106 is connected to the other antenna connection terminal of the IC chip 308.
[0024]
The two connection terminals of the IC chip 308 include one end of a power line 312 connected to one electrode 302 of the female connection terminal 108 and a power line connected to the other electrode 304 of the female connection terminal 108. One end of 314 is connected.
Therefore, by connecting the electrode 202 and the electrode 204 of the male connection terminal 106 shown in FIG. 2, a loop antenna including the coil portion 206 and the coil portion 306 is formed.
[0025]
FIG. 4 is an example of a functional block diagram of the power cord 104.
As shown in FIG. 4, the power cord 104 includes a reception demodulator 402, a responder controller 404, a memory unit 406, a transmitter 408, a power generator 410, a sub-antenna reception demodulator 422, a sub-antenna controller 424, An antenna power generation unit 426, an antenna 400, a sub-antenna 210, and a display unit 110 are provided.
[0026]
The reception demodulator 402 wirelessly receives a request for confirming the operation of the RFID tag built in the power cord 104 from the interrogator 102 using the electromagnetic wave of a predetermined frequency band via the antenna 400.
The transponder control unit 404 acquires information necessary for response information from the memory unit 406 based on the operation confirmation request received from the interrogator 102 by the reception demodulation unit 402, and the RFID tag is operating normally. Generate response information. For example, the RFID tag information of the RFID tag is acquired from the memory unit 406, and response information based on the acquired RFID tag information is generated.
[0027]
The transmission unit 408 wirelessly transmits the response information generated by the responder control unit 404 to the interrogator 102 via the antenna 400.
When the power generation unit 410 receives the confirmation request from the interrogator 102, the power generation unit 410 generates driving power from the carrier wave of the confirmation request, and supplies this power to each part of the RFID tag.
[0028]
The sub-antenna receiving / demodulating unit 422 sends a display request for displaying on the display unit 110 that the power line 104 has a problem with the power line, and transmits an electromagnetic wave in a predetermined frequency band from the interrogator 102 via the sub-antenna 210. Use to receive wirelessly. Here, the frequency band of the electromagnetic wave received by the sub-antenna reception demodulator 422 is different from the frequency band of the electromagnetic wave received by the reception demodulator 402.
[0029]
Based on the display request from the interrogator 102 received by the sub-antenna reception demodulation unit 422, the sub-antenna control unit 424 causes the display unit 110 to display that there is a power line defect in the power cord 104. That is, the display part of the display unit 110 is displayed.
Upon receiving the display request from the interrogator 102, the sub-antenna power generation unit 426 generates driving power from the display request carrier wave, and supplies this power to each part of the display RFID tag.
[0030]
FIG. 5 is an example of a functional block diagram of the interrogator 102.
As shown in FIG. 5, the interrogator 102 includes a data transmission unit 502, a data reception unit 504, a control unit 506, a memory unit 508, and an antenna 500.
The data transmission unit 502 executes a request for confirming the operation of the RFID tag built in the power cord 104 to the power cord 104 existing in the communication area via the antenna 500 by wireless communication. Further, the data transmission unit 502 displays on the display unit 110 that the power line 104 that has not responded to the RFID tag operation confirmation request via the antenna 500 has a power line defect. The request is executed by wireless communication. Here, the transmission of the confirmation request uses the frequency band of the electromagnetic wave that can be received by the RFID tag, and the transmission of the display request uses the frequency band of the different electromagnetic wave as the frequency band of the electromagnetic wave that can be received by the RFID tag for display. .
[0031]
The data receiving unit 504 wirelessly receives response information to the confirmation request for the operation of the RFID tag from the power cord 104 existing in the communication area via the antenna 500.
The control unit 506 acquires information necessary for transmission information for requesting confirmation of the operation of the RFID tag built in the power cord 104 existing in the communication area from the memory unit 508, and based on the acquired information. Then, transmission information for making a confirmation request is generated. In addition, the control unit 506 monitors the presence or absence of a response from the power cord 104 to the confirmation request for the operation of the RFID tag built in the power cord 104 transmitted by the data transmission unit 502, and there is a problem in the power line. The power cord 104 is identified. In addition, the control unit 506 acquires information necessary for display request transmission information for causing the display unit 110 to display that the power cord is defective in the power line from the memory unit 508, and based on the acquired information. Then, transmission information for making a display request is generated.
[0032]
FIG. 6 is a flowchart illustrating an example of the inspection process of the power cord 104 by the control unit 506 of the interrogator 102.
As shown in FIG. 6, first, the control unit 506 transmits an RFID tag operation confirmation request to the power cord 104 existing in the communication area (S602), and has received a response to the operation confirmation request? It is determined whether or not (S604). If an operation confirmation response is received (S604; Yes), the process returns to step S602 and waits for a predetermined time. On the other hand, when an operation confirmation response is not received (S604; No), an elapsed time since the operation confirmation response request is calculated (S606), and the calculated elapsed time is determined as a predetermined operation confirmation response determination. It is determined whether it is within the time (S608).
[0033]
If the calculated elapsed time is within the predetermined operation confirmation response determination time (S608; Yes), the process returns to step S604 and waits for a predetermined time. On the other hand, if the calculated elapsed time has passed the predetermined operation confirmation response determination time (S608; No), an indicator that the power cord 104 existing in the communication area is a power cord having a malfunction in the power line. A display request for display on 110 is transmitted (S610), and the process ends.
[0034]
FIG. 7 is a flowchart illustrating an example of a reception process when an operation confirmation request is received by the responder control unit 404 of the power cord 104.
As shown in FIG. 7, first, the RFID tag operation confirmation request is received from the interrogator 102 (S702), and response information indicating that the RFID tag is normal is generated (S704). Finally, the generated response information is transmitted to the interrogator 102 (S706), and the process ends.
[0035]
FIG. 8 is a flowchart illustrating an example of reception processing when a display request is received from the sub-antenna control unit 424 of the power cord 104.
As shown in FIG. 8, first, a display request for displaying on the display unit 110 that the power cord is defective in the power line is received from the interrogator 102 (S802), and the display part of the display unit 110 is displayed. If it is displayed (S804), the process is terminated.
[0036]
Next, the operation of the present embodiment will be described.
FIG. 9 is a diagram illustrating the operation of the power cord inspection process by the power cord 104 and the interrogator 102 in the case of the normal power cord 104.
As shown in FIG. 9, first, the interrogator 102 transmits a confirmation request for the operation of the RFID tag built in the power cord 104 to the power cord 104 existing in the communication area, and monitors the response to the confirmation request. (S902).
[0037]
When the power cord 104 receives a request for confirming the operation of the RFID tag (S922), the power cord 104 transmits response information indicating that the RFID tag is operating normally to the interrogator 102 (S924), and ends the processing.
The interrogator 102 receives the response information from the power cord 104 (S904) and ends the process.
[0038]
FIG. 10 is a diagram showing the operation of the power cord inspection process by the power cord 104 and the interrogator 102 in the case of the power cord 104 having a defect in the power line.
As shown in FIG. 10, the interrogator 102 first transmits a confirmation request for the operation of the RFID tag built in the power cord 104 to the power cord 104 existing in the communication area, and monitors the response to the confirmation request. (S922). If there is no response from the power cord 104 even after the predetermined operation confirmation response determination time has elapsed (S944; Yes), the interrogator 102 indicates that the power cord has a fault in the power line. A display request for display on 110 is transmitted (S946), and the process ends.
[0039]
When receiving the display request (S962), the power cord 104 displays the display part of the display device 110 (S964) and ends the process.
As described above, in the power cord inspection apparatus 100, the power cord 104 includes the reception demodulator 402, the responder controller 404, the memory unit 406, the transmitter 408, the power generator 410, the sub-antenna reception demodulator 422, The antenna control unit 424, the sub-antenna power generation unit 426, the antenna 400, the sub-antenna 210, and the display unit 110 are provided. The interrogator 102 includes a data transmission unit 502, a data reception unit 504, a control unit 506, a memory unit 508, and an antenna. By providing 500, it is possible to relatively easily recognize the power cord 104 in which the disconnection of the power line or the short circuit between the power lines exists.
[0040]
Therefore, it is possible to remove the power cord 104 that has been recognized as a disconnection of the power line or a short circuit between the power lines from the inspection line. In addition, since it is not necessary for an inspector or the like to insert the power plug 104 into an outlet in order to supply power to the power line, the time required for the inspection work of the power cord can be reduced.
[0041]
In the above-described embodiment, the control unit 506 of the interrogator 102 corresponds to a state determination unit. Further, the control unit 506 of the interrogator 102 corresponds to a response monitoring unit, a state recognition unit, and a display request unit. The display unit 110 of the power cord 104 corresponds to a display unit, and the reception demodulation unit 402, transponder control unit 404, memory unit 406, transmission unit 408, power generation unit 410, and antenna 400 correspond to RFID tags. The sub-antenna reception demodulation unit 422, the sub-antenna control unit 424, the sub-antenna power generation unit 426, and the sub-antenna 210 correspond to a display RFID tag.
[0042]
In the above embodiment, the case where one power cord 104 exists in the communication area has been described. However, a plurality of power cords may exist in the communication area. For example, the interrogator 102 stores the RFID tag information of the RFID tag built in the power cord 104 existing in the communication area in the memory unit 508 before starting the inspection of the power cord, and the communication area A request for confirming the operation of the RFID tag is transmitted to all the power cords 104 existing therein.
[0043]
By receiving the RFID tag information as response information to the transmitted confirmation request, the RFID tag information of the RFID tags built in all the power cords 104 existing in the communication area stored in the memory unit 508 Based on the above, the power cord 104 for which no operation confirmation request has been made is identified, and a display indicating that the power cord has a defect in the power line with respect to the RFID tag for display incorporated in the identified power cord 104 Send a request. In this way, even if a plurality of power cords exist in the communication area, the power cord can be inspected.
[0044]
In the above-described embodiment, the power cord 104 is connected with the electrode of the male connection terminal 106 in order to inspect whether the power line is disconnected or short-circuited between the power lines. The connection terminal 106 and the female connection terminal 108 may be connected.
In the above-described embodiment, the power cord 104 is provided with the display unit 110, and the display portion of the display unit 110 of the power cord 104 where the power line defect exists is displayed. It is also possible to display information for identifying the power cord of the power cord 104 that has a power line defect.
[0045]
Further, in the above-described embodiment, the display unit 110 is provided in the power cord 104, and the display portion of the display unit 110 of the power cord 104 where the power line defect exists is displayed so that an inspector or the like recognizes it. However, it is provided with means for removing the power cord 104 in which there is a power line malfunction from the inspection line, and the power cord 104 is malfunctioning in the power line based on the result of determination by the interrogator 102 as to whether or not there is a power line malfunction. You may make it classify | categorize on a test | inspection line with a thing with no.
[0046]
In the above-described embodiment, the power cord 104 includes a male connection terminal and a female connection terminal, but includes a cord having an electrode and a power line (for example, a mouse, a keyboard, etc.) If it is good.
In the above-described embodiment, the memory unit 406 of the power cord 104 and the memory unit 508 of the interrogator 102 may be FeRAM.
[0047]
In addition, the above-mentioned embodiment is for description and does not limit the scope of the present invention. Accordingly, those skilled in the art can employ embodiments in which each or all of these elements are replaced by equivalents thereof, and these embodiments are also included in the scope of the present invention.
[Brief description of the drawings]
FIG. 1 is an example of a conceptual diagram of a power cord inspection apparatus using communication between a power cord and an interrogator using RFID.
FIG. 2 is an example of a schematic diagram of a male connection terminal of a power cord.
FIG. 3 is an example of a schematic diagram of a female connection terminal of a power cord.
FIG. 4 is an example of a functional block diagram of a power cord.
FIG. 5 is an example of a functional block diagram of an interrogator.
FIG. 6 is a flowchart showing an example of a power cord inspection process by the control unit of the interrogator.
FIG. 7 is a flowchart showing an example of a reception process when an operation confirmation request is received from the power cord transponder controller.
FIG. 8 is a flowchart illustrating an example of a reception process when a display request is received by a sub-antenna control unit of a power cord.
FIG. 9 is a diagram showing an operation of a power cord inspection process by a power cord and an interrogator in the case of a normal power cord.
FIG. 10 is a diagram showing an operation of a power cord inspection process by a power cord and an interrogator in the case of a power cord having a defect in a power line.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 ... Power cord inspection apparatus, 102 ... Interrogator, 104 ... Power cord, 106 ... Male connection terminal, 108 ... Female connection terminal, 110 ... Display part, 202 ... Electrode, 204 ... Electrode, 206 ... Coil part of antenna 208 ... IC chip, 210 ... sub antenna, 212 ... power line, 214 ... power line, 302 ... electrode, 304 ... electrode, 306 ... coil part of antenna, 308 ... IC chip, 312 ... power line, 314 ... power line, 400 ... antenna 402: Reception demodulator 404: Responder controller 406 Memory unit 408 Transmitter 410 Power generation unit 422 Sub antenna reception demodulator 424 Sub antenna control unit 426 Sub antenna power Generation unit, 500 ... antenna, 502 ... data transmission unit, 504 ... data reception unit, 506 ... control unit, 508: Memory unit

Claims (11)

  1. An electrode connectable to an outlet or a plug;
    A power line connected to the electrode;
    An RFID tag provided on the power line so that wireless communication becomes invalid due to disconnection of the power line or short circuit between the power lines when the electrodes are connected. .
  2. The RFID tag is
    The power cord according to claim 1, wherein a part of the power line is formed as an antenna used for the wireless communication.
  3. The RFID tag is
    The power cord according to claim 1, wherein a response to the confirmation request is transmitted based on an operation confirmation request received by wireless communication.
  4. An indicator that displays whether there is a break in the power line or a short between the power lines;
    An RFID tag for display different from the RFID tag for controlling the display, based on a display request received by wireless communication in a frequency band different from the frequency band of the RFID tag;
    The power cord according to any one of claims 1 to 3, further comprising:
  5. The indicator is
    The power cord according to claim 4, wherein an electrophoretic element is used for the display portion.
  6. The RFID tag is
    The power cord according to any one of claims 1 to 5, further comprising a ferroelectric memory.
  7. A power cord inspection apparatus comprising: the power cord according to any one of claims 1 to 6; and a state determination unit that determines a state of a power line built in the power cord.
    The state determination means determines whether or not a break in the power line or a short between the power lines exists in the power cord according to a communication state of the RFID tag.
  8. The state determination means includes
    An operation confirmation request for determining whether or not there is a disconnection of the power line or a short circuit between the power lines is performed on the RFID tag, and the presence or absence of a response from the RFID tag to the confirmation request is monitored. Response monitoring means;
    When there is no response from the RFID tag to the confirmation request, state recognition means for recognizing that the power line is disconnected or short-circuited between the power lines.
    The power cord inspection device according to claim 7, further comprising:
  9. A power cord inspection apparatus comprising: the power cord according to claim 4 or 5; and a state determination unit that determines a state of a power line built in the power cord.
    The state determination means includes
    An operation confirmation request for determining whether or not there is a disconnection of the power line or a short circuit between the power lines is performed on the RFID tag, and the presence or absence of a response from the RFID tag to the confirmation request is monitored. Response monitoring means;
    When there is no response from the RFID tag to the confirmation request, state recognition means for recognizing that the power line is disconnected or short-circuited between the power lines.
    Display for executing a display request for displaying on the display the result of determining whether the power line is disconnected or short-circuited between the power lines. Request means;
    A power cord inspection device comprising:
  10. The state determination means includes
    The power cord inspection apparatus according to claim 7, further comprising a ferroelectric memory.
  11. A power cord inspection method for inspecting the power cord according to any one of claims 1 to 6,
    Connecting between the electrodes of the power cord;
    A step of making an operation confirmation request to the RFID tag of the power cord;
    Determining whether there is a disconnection of the power line or a short between the power lines in the power cord in accordance with the presence or absence of a response from the RFID tag to the confirmation request;
    Determining the power cord in which a disconnection of the power line or a short circuit between the power lines exists and the power cord in which a disconnection of the power line or a short circuit between the power lines does not exist;
    A power cord inspection method comprising:
JP2003203853A 2003-07-30 2003-07-30 Power supply cord, power supply code inspection device, and power supply code inspection method Withdrawn JP2005050581A (en)

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JP2007333674A (en) * 2006-06-19 2007-12-27 Ricoh Co Ltd Cable connection diagnosis device and diagnosis system
US8172468B2 (en) 2010-05-06 2012-05-08 Corning Incorporated Radio frequency identification (RFID) in communication connections, including fiber optic components
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US8264355B2 (en) 2006-12-14 2012-09-11 Corning Cable Systems Llc RFID systems and methods for optical fiber network deployment and maintenance
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