JP2007065821A - Maintenance inspection supporting method and system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a signal maintenance inspection supporting method and system for quickly and surely executing signal maintenance inspection in an inspection site such as railroad where various facilities are installed. <P>SOLUTION: The signal maintenance inspection support system 10 is configured of a client PC30, a database part 20 and a portable terminal 40 connected through a network 50. The data part 20 of the system 10 includes an inspection planning part 21, a facility information part 22 and an inspection part 23. An inspector 65 carries the portable terminal 40, and executes inspection according to an instruction from a headset 62 by speech synthesis, based on data read from the database part 20 and a facility 60. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a maintenance inspection support method and system, and more particularly to a maintenance inspection support method and system that enables an inspector to reliably perform inspection work that is regularly performed for maintenance of facilities such as railways.

  In the conventional maintenance inspection, an inspection type plan is prepared for each inspection section, and the inspection is performed based on this plan. In this conventional method, the inspector first identifies the target inspection equipment in the inspection section, judges whether inspection is necessary from the past inspection results, etc., and if inspection is necessary, the corresponding inspection table (paper base) is provided. We actually bring it to the inspection site, carry out inspections according to the inspection contents, and enter the inspection results in the inspection table. The collected inspection results are reflected in the inspection plan by the inspection planner who checks the corresponding equipment, inspects the inspection date, and inspection data.

  This conventional system has some problems or drawbacks as follows. First, it is necessary to check the corresponding equipment that exists in the inspection section of the inspection plan and what equipment is necessary for inspection in the corresponding equipment. It is necessary to check if there is any. Secondly, there is a question as to whether or not the inspection object of the inspection target equipment has been reliably inspected. Thirdly, there is a question as to whether there is a mistake in entering the inspection data or whether there is an error in the scrutiny stage for determining the quality of the inspection data. Fourth, the question is whether the test was performed in the correct way.

  In order to solve these problems, a readable / writable IC tag is attached to the equipment to be measured and inspected, and the consistency of the previously written data and the inspection data measured this time is compared using the mobile terminal as the inspection and measurement tool. The equipment and inspection details are confirmed. Further, by confirming the consistency with the previous inspection data, it is used as a part of the determination standard for determining the quality of the inspection data (see, for example, Patent Document 1).

  There is known a method of managing the equipment data and the inspection data by the double management of the management by the equipment inspection management database and the readable / writable IC tag attached to the equipment. Thereby, although the 2nd and 3rd subject mentioned above can be solved, the 1st and 4th subject cannot be solved. In addition, although there is no specification for the method of inputting inspection data, if the inspection data is simply confirmed on the screen, it may be possible in the inspection during the daytime period, but the inspection at night or the sunlight in the daytime. However, it is considered that the burden on the inspector is large when the inspection is strong.

  Furthermore, as a method for carrying out a test by installing voice recognition and voice synthesis, a method of controlling final registration by speech input such as “OK” by voice input is also known (see, for example, Patent Document 2). .

JP 2003-132167 A (page 4-5, FIG. 1) JP-A-11-228047 (page 2-3, FIG. 1)

  However, each of the conventional techniques as described above can solve only a part of at least four problems described above, and cannot solve all of these problems. Moreover, according to the voice input method as described above, there is a possibility that errors such as misrecognition or misunderstanding due to a large noise at the actual inspection site may occur.

  The present invention has been made in view of the above-described problems of the prior art, and an object thereof is to provide a maintenance inspection support method and system that eliminates or reduces all of the above-described problems.

  In order to solve the above-described problems, the maintenance inspection support method and system according to the present invention employs the following characteristic configuration.

(1) In a maintenance inspection support method for supporting an inspector to inspect and maintain a plurality of facilities provided in an inspection section,
Planning an inspection plan using inspection data including an equipment name, an inspection period and an inspection range of each of the facilities;
Reading data based on the planned inspection plan and data of the equipment into a mobile terminal;
Voice synthesizing data from the mobile terminal and instructing the inspector with synthesized sound;
Recognizing a result of an inspection performed by an inspector based on an instruction by the synthesized sound;
Synthesizing the recognition result and outputting as a synthesized voice;
And a step of confirming an output result of the voice synthesized sound by an external input means.
(2) The maintenance inspection support method according to (1), wherein the portable terminal includes a step of collating the read facility data with internal data.
(3) If the inspector hears the synthesized sound and the contents of the inquiry are correct, the external input means is activated. The maintenance inspection support method according to the above (1) or (2), comprising the step of outputting.
(4) The maintenance inspection support method according to (1), (2), or (3), comprising the step of recording the inspection result on the portable terminal.
(5) a database section for storing data relating to maintenance inspections of various facilities;
At least one client PC connected to the database unit and drafting a maintenance inspection plan based on the data in the database unit;
A portable terminal that reads the maintenance inspection planned data and facility data of an electronic tag attached to the facility from the client PC;
A maintenance inspection support system comprising: a headset that instructs an inspector with a synthesized sound based on the inspection plan read into the portable terminal.
(6) The maintenance inspection support system according to the above (5), wherein the inspector includes an external input means that can be operated according to an instruction of the synthesized sound.
(7) The database unit includes an inspection planning unit that the client PC accesses to create the inspection plan, an equipment information unit that holds equipment data to be inspected, and an inspection unit that holds items to be inspected ( The maintenance inspection support system according to 5) or (6).
(8) The portable terminal is provided with means for holding a pass / fail judgment check of test results and test data, and the test result and pass / fail result can be confirmed on the client PC by uploading to the database unit. The maintenance inspection support system according to (6) or (7).

  According to the maintenance inspection support method and system of the present invention, the following remarkable practical effects can be obtained. In other words, the inspection section, the corresponding equipment, the inspection cycle, the inspection range, etc. are stored in a predetermined format in the database unit and read into the mobile terminal via the client PC, and the equipment information (data) is also stored in the mobile terminal using an IC tag or the like. Is read. Therefore, the inspector performs the inspection based on the instruction by the synthesized sound from the headset, and inputs the result with the switch which is an example of the external input means, thereby easily, quickly and reliably inspecting the equipment maintenance work. An inspection can be performed.

  Hereinafter, the configuration and operation of a preferred embodiment of a maintenance inspection support method and system according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a system configuration diagram of a preferred embodiment of a maintenance inspection support system according to the present invention. The maintenance inspection support system 10 includes a database unit 20, a plurality of client PCs (personal computers) 30a to 30d (hereinafter, the plurality of client PCs are collectively referred to by reference numeral 30) and a PDA (Personal
(Digital Assistant) or the like.

  Here, the database unit 20 includes an inspection plan unit 21, an equipment information unit 22, and an inspection unit 23. The database unit 20 and the plurality of client PCs 30 are connected to a network 50 such as an in-house LAN.

  These client PCs 30 access the inspection plan unit 21 of the database unit 20 and draft an inspection plan. Based on this inspection plan, the inspection planning unit 21 transmits the “facility data” to be inspected to the facility information unit 22 and the “period data” planned in the inspection plan to the inspection unit 23. In addition, the facility information unit 22 adds “unique information data” to “facility data” and transmits the data to the inspection unit 23. Then, in the inspection unit 23, “inspection table template data” of the inspection unit 23 which clarifies the “inspection item” to be inspected by adding the inspection target equipment, the inspection period and the equipment specific information to the inspection planned contents. "Can be held.

  The client PC 30 accesses the data of the inspection unit 23 and confirms “inspection period”, “inspection equipment”, and “inspection item data to be inspected”. This signal maintenance inspection support system 10 enables the inspector of the client PC 30 to grasp the “inspection target facility”, its “inspection item”, and “inspection period” without being aware of the inspection plan.

  Next, the data of the client PC 30 is transferred to the portable terminal 40 such as a PDA, and the inspection is executed. After the inspection is executed, good equipment and bad equipment are classified as data in the memory (or storage unit) of the mobile terminal 40. Therefore, when the data is uploaded to the client PC 30, the pass / fail result of the test results is automatically determined. The obtained data is displayed on the screen of the PC 30. When this inspection result is registered in the database unit 20, data of the inspection result is registered in the inspection unit 23 and is reflected in the inspection plan unit 21 as an inspection result.

  Next, a specific inspection example will be described with reference to FIG. In FIG. 2A, a readable electronic tag 61 such as an IC tag is attached to the facility 60. The device-specific information data is registered in the electronic tag 61. When the inspection is performed, the portable terminal 40 shown in FIG. The unique information is compared inside the portable terminal 40 to clarify the inspection target equipment and the inspection item, and the portable terminal 40 performs the inspection. As a result, the consistency between “inspection equipment” and “inspection items” becomes clear.

  On the other hand, FIG. 2B is a diagram showing a specific example of the voice test. A headset 62 equipped with a microphone capable of voice input and equipped with a speaker function for listening to the sound output from the portable terminal 40, the portable terminal 40, and a switch for the function of registering the result of voice recognition 41 is used.

  At the start of the inspection, the inspection name of the inspection target facility 60 is output as a synthesized voice, and if the inspector 65 is satisfied with the content, the switch 41 is pressed to perform the inspection, and this time is determined as the inspection implementation date. Since the maintenance inspection of the facility 60 is performed by voice guidance via the portable terminal 40 and the headset 62, there is no inspection omission.

  Next, the maintenance inspection will be described as a specific example. “What is the voltage value?” Is output from the portable terminal 40 to the speaker unit of the headset 62 as a synthesized voice. On the other hand, when the inspector 65 speaks “10 volts”, whether or not the data is within the determination value is checked inside the portable terminal 40, and whether the inspection result of the inspection target equipment is good or not is bad. The data classification is performed inside the portable terminal 40. In maintenance inspection, there is generally a certain inspection section. Various facilities 60 exist in this inspection section. Moreover, it is common that the same (type or kind) equipment 60 exists in each test | inspection area. The inspection plan unit 21 of the database unit 20 associates data of the “inspection section”, “equipment” existing in the inspection section, and “inspection period” necessary for the equipment.

  FIG. 3 shows a specific example of data of the inspection plan unit 21. FIG. 3A shows an “inspection section” and its “corresponding equipment”. In this specific example, there are inspection sections (1) to (3). And inspection section (1) has corresponding facilities A, B, C, D, E and F. The inspection section (2) has corresponding facilities A, B, and D. The inspection section (3) has corresponding facilities A and G. Therefore, the corresponding facility A exists in all of the inspection sections (1), (2), and (3). Corresponding equipment B exists in inspection sections (1) and (2). Similarly, the corresponding equipment D exists in the inspection sections (1) and (2). The corresponding equipment G exists only in the inspection section (3).

  Next, FIG. 3B shows a specific example of the “inspection period” of the corresponding facilities A to G. In this specific example, the corresponding facilities A and D to G are a, b, and c having the same inspection cycle. The inspection period of the corresponding equipment B is a, and the inspection period of the corresponding equipment C is c. In other words, as is clear from FIG. 3B, the inspection periods of the facilities A to G are determined for maintaining the facilities. For example, in order to maintain the facilities A, the inspection cycles a, b, and c Requires inspection.

  FIG. 3C illustrates “inspection section”, “inspection period”, and “inspection range”. Here, in the specific example shown in FIG. 3C, the inspection planner inspects the inspection of the inspection period a in the inspection section (1) in a certain inspection range, for example, 4/1 to 5/30, In the inspection in the inspection period (2), the inspection period a is inspected in the inspection range 6/1 to 7/31.

  With the equipment that needs to be inspected in the inspection period (1) in the inspection section (1) by bringing the “data table” as shown in FIG. 3 (A) and FIG. The maintenance inspection support system can grasp by what time the inspection should be executed. By making a plan in this way, it is possible to urge the client PC 30 of the inspection citation by e-mail or the like via the network 50 such as the in-house LAN so that the inspection-necessary equipment is performed within the inspection cycle.

  Next, the facility information unit 22 of the database unit 20 manages “equipment unique numbers” that are unique numbers of the facilities A to G as data. This equipment unique information is a unique number that is different even in the equipment A having the same function. FIG. 4 shows a specific example of this equipment specific information. FIG. 4A shows that the equipment specific information of the equipment A in the inspection section 1 is “111”. On the other hand, FIG. 4B shows that the equipment specific information of the equipment A in the inspection section 2 is “222”. As shown in this specific example, the same equipment A is managed as different equipment-specific information such as “111” and “222”.

  On the other hand, in the inspection unit 23, a voice test template in which the inspection items and inspection pass ranges for each of the equipments A to G and each inspection cycle are clarified is held in a data table. FIG. 5A shows specific examples of “corresponding equipment” A to G and these “inspection model”. When an inspection plan is prepared and inspected, as shown in FIG. 5B, equipment-specific information (for example, “111”, inspection table model (for example, Aa), and inspection range (for example, 4/1 to 5 / 30), the data is downloaded to the portable terminal 40 and inspected.

  Next, FIG. 6 is a flowchart showing a test procedure according to the present invention when performing a voice guidance test. In this flowchart, as will be described in detail below, steps A1 to A7 are a flowchart of processing from the confirmation of the facility information before the inspection execution to the confirmation of the inspection range. On the other hand, Steps B1 to B14 are flowcharts showing an actual inspection procedure.

  First, when carrying out the inspection, the switch button 41 of the portable terminal 40 is pushed (step A1). Thereby, the electronic tag (IC tag) 61 attached to the inspection facility 60 is read by the portable terminal 40 (step A2). This equipment data is collated with the data in the portable terminal 40, that is, equipment specific information (step A3). Then, the examination contents are synthesized by speech synthesis means (not shown) in the portable terminal 40 and output as speech (ie, synthesized speech) (step A4). For example, when the mobile terminal 40 reads the specific information of the equipment A in the inspection section (1), the inspection of the inspection cycle a of the equipment A in the inspection section (1) is performed with a synthesized voice compared with the data in the mobile terminal 40. Will be output as a synthesized sound. The portable terminal 40 and the headset 62 are connected by wire or wireless.

  Next, it is determined whether or not the inspection equipment is correct (step A5). If the inspection content is good (step A5: Yes), the inspector presses the switch button 41 (step A6). On the other hand, if the inspection content cannot be heard or the inspection content is different (step A5: No), if nothing is done (the switch button 41 is not pressed), the initial state is restored again, so the above-described step A2 is performed. Return and repeat the above operation. When the switch button 41 is pressed, the inspection range in the portable terminal 40 is compared with the internal time in the portable terminal 40 (step A7). By following the above procedure (steps A1 to A7), confirmation of equipment to be inspected, inspection range and inspection item check are automatically performed.

  Next, an actual inspection procedure will be described based on steps B1 to B14 in FIG. First, a synthesized sound of inspection contents is output (step B1). The voice by this voice synthesis can be, for example, “Please measure with an AC voltmeter so as not to short-circuit the secondary side voltage of the transformer in the lower right of facility A”. .

  In the general inspection table, there is only an item of “transformer secondary side voltage” in such a case, and in the actual measurement, what kind of measuring instrument should be used or what should be noted There is no problem. However, workability can be improved by performing the inspection based on the voice guidance.

  Next, the inspector 65 determines whether or not this synthesized sound has been heard (step B2). If the synthesized sound cannot be heard (step B2: No), the process waits for the initial state without doing anything (ie, returns to step B1). On the other hand, when the synthesized voice can be heard and the test content can be confirmed (step B2: Yes), the switch button 41 is pressed (step B3).

  Thereafter, the portable terminal 40 is expanded to the voice recognition processing state. In the case of this example, the numerical value recognition dictionary is called to enter a recognition standby state (step B4). For example, when the inspector 65 speaks “100”, the recognition process is executed, and the execution result is interrogated and outputted as a synthesized sound (step B5).

  The inspector confirms whether the content of the inquiry is the same as the content of the utterance (step B6). If they match (step B6: Yes), the switch button 41 is pressed (step B7). On the other hand, if the inspector misrecognizes and does not match (step B6: No), if nothing is done, the time-out process is executed, and the process returns to the above-described step B1, and the synthesized sound of the inspection contents Start again.

  When the switch button 41 is pressed (step B7), the data is set in the data area in the portable terminal 40 (step B8). When the data is set, the data is compared with the inspection pass range data of the inspection table model in the portable terminal 40, and it is determined whether or not the data value is within the determination value (step B9). If the data value is within the determination value (step B9: Yes), good registration data processing is performed (step B10). On the other hand, when it is outside the determination value (step B9: No), a negative registration data process is executed (step B11). After step B10, it is determined whether or not there is another inspection for equipment A (step B12). If the inspection procedure is not continued (step B12: No), an inspection end process is performed, and for example, a synthesized sound “Exit inspection is completed” is output to clarify the end of inspection (step B13). On the other hand, when there are still inspection items (step B12: Yes), switch push is performed (step B14), and the process returns to step B1. And the audio | voice test | inspection is implemented until it complete | finishes the test | inspection item by repeatedly performing the test | inspection procedure of step B1-step B14 mentioned above.

  In this way, by executing the inspection procedure as shown in the voice inspection processing flowchart of FIG. 6, it is possible to reliably prevent inspection mistakes and missing inspection items. In addition, a series of inspections can be performed without screen operation and screen confirmation work. A characteristic of such inspection is various confirmation operations using switches. As described in the above-mentioned Patent Document 2, there is proposed a method of controlling final registration by speech such as “OK” by voice input instead of a switch. FIG. 7 shows a recognition rate by this method. In FIG. 7, the horizontal axis is the number of questions (number of times), and the vertical axis is the recognition rate (%). As can be seen from the result of examining the recognition rate by creating a recognition group in the language used for signal maintenance at the actual inspection site shown in FIG. 7, the speech recognition is not 100%, and the first recognition rate is 70-80. It is only about%.

  If you try to control with the word "OK" at the railway maintenance inspection site, 70 to 80%, that is, 7 to 8 out of 10 inspection items can be controlled with the word "OK". However, two to three times indicate that the word “OK” itself may be misrecognized and erroneous data may be registered. However, the present invention has a feature of preventing malfunction due to erroneous recognition by using the switch 41 as described above. Further, as shown in FIG. 7, it is found that if the question is asked twice (that is, the process of redoing three times), it can be recognized with almost 100% accuracy. Can be implemented.

  Next, FIG. 8 shows an example of data added to the portable terminal 40 as a result of executing the above-described inspection. By uploading the data of the portable terminal 40 shown in FIG. 1, the inspection data can be confirmed on the screen of the client PC 30. After this final confirmation, the inspection date, collected inspection data, and pass / fail results in FIG. 8 are transmitted to the inspection unit and managed, and the inspection of the inspection plan unit 21 in FIG. It becomes possible to automatically correspond to the plan results. Therefore, an effective signal maintenance inspection support system for a series of signal equipment management from the inspection plan to the inspection data collection can be obtained.

  The preferred embodiment of the signal maintenance inspection support system according to the present invention has been described in detail above. However, it should be noted that such examples are merely illustrative of the invention and do not limit the invention in any way. Those skilled in the art will readily understand that various modifications and changes can be made in accordance with a specific application without departing from the gist and spirit of the present invention.

1 is a system configuration diagram of a preferred embodiment of a signal maintenance inspection support system according to the present invention. The inspection execution aspect by the portable terminal of the signal maintenance inspection support system shown in FIG. 1 is shown, (A) is reading operation to the portable terminal of equipment information, (B) is a figure which shows the execution state of inspection. The data structure of the inspection plan section of the database section constituting the signal maintenance inspection relaxation system shown in FIG. 1 is shown, (A) is the inspection section and corresponding equipment, (B) is the corresponding equipment and inspection cycle, and (C) is the inspection. It is a specific example of a section, a test cycle, and a test range. The data structure of the equipment information part of the database part which comprises the signal maintenance test | inspection assistance system shown in FIG. 1 is shown, (A) and (B) are the specific examples of the equipment name and equipment specific information of a respectively different test | inspection area. The data structure of the test | inspection part of the database part which comprises the signal maintenance test | inspection assistance system shown in FIG. 1 is shown, (A) is a corresponding equipment and a test | inspection model, (B) is equipment specific information, a test | inspection table, and a test | inspection range. It is a flowchart of the audio | voice guidance test | inspection process by the signal maintenance test | inspection assistance system of this invention. It is a graph which shows the experimental data which show the speech recognition rate in the signal maintenance in an inspection field. It is a specific example of the data structure in the portable terminal of the signal maintenance inspection support system shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Signal maintenance inspection support system 20 Database part 21 Inspection plan part 22 Equipment information part 23 Inspection part 30 Client PC
40 mobile terminal 41 switch 50 network 60 facility 61 IC tag 62 headset 65 inspector

Claims (8)

In a maintenance inspection support method for supporting an inspector to maintain and inspect a plurality of facilities provided in an inspection section,
Planning an inspection plan using inspection data including an equipment name, an inspection period and an inspection range of each of the facilities;
Reading data based on the planned inspection plan and data of the equipment into a mobile terminal;
Voice synthesizing data from the mobile terminal and instructing the inspector with synthesized sound;
Recognizing a result of an inspection performed by an inspector based on an instruction by the synthesized sound;
Synthesizing the recognition result and outputting as a synthesized voice;
And a step of confirming an output result of the voice synthesized sound by an external input means.   The maintenance inspection support method according to claim 1, wherein the portable terminal includes a step of collating the read facility data with internal data.   When the inspector can hear the synthesized sound and when the contents of the inquiry are correct, the external input means is activated. The maintenance inspection support method according to claim 1, further comprising a step.   The maintenance inspection support method according to claim 1, further comprising a step of recording the inspection result on the portable terminal. A database section for storing data related to maintenance inspections of various facilities;
At least one client PC connected to the database unit and drafting a maintenance inspection plan based on the data in the database unit;
A portable terminal that reads the maintenance inspection planned data and facility data of an electronic tag attached to the facility from the client PC;
A maintenance inspection support system, comprising: a headset that instructs an inspector with a synthesized sound based on the inspection plan read into the portable terminal.   The maintenance inspection support system according to claim 5, wherein the inspector includes an external input unit operable in accordance with an instruction of the synthesized sound.   The database unit includes an inspection plan unit that the client PC accesses to draft the inspection plan, an equipment information unit that holds equipment data to be inspected, and an inspection unit that holds items to be inspected. The maintenance inspection support system according to claim 5 or 6. 5. The apparatus according to claim 1, further comprising: a means for holding an inspection result pass / fail judgment check and inspection data in the portable terminal, wherein the inspection result and the pass / fail result can be confirmed by the client PC by uploading to the database unit. 5. The maintenance inspection support system according to 5, 6 or 7.

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