JP2019008439A - Information providing method and information providing program - Google Patents

Abstract

To provide an information providing method and an information providing program that enable a service person to execute appropriate repair work in terms of cost.SOLUTION: An information providing method includes: acquiring, from a first apparatus, third sensing data that is the difference between first and second sensing data acquired in a first period on a repair date and a second period before the repair date by a first sensor provided in the first apparatus; comparing the third sensing data with statistics of one or more pieces of sixth sensing data acquired from a plurality of apparatuses in the same manner and included in one or more pieces of repair information indicating the same condition as that of the first apparatus or the same treatment as treatment carried out for the first apparatus, indicating being not repaired again, and determined that cost for second information is most inexpensive on the basis of a third database; and displaying, as recommendation information, the second information associated with the statistic closest to that of the third sensing data in a second database, on an information terminal corresponding to a first service person who repairs the first apparatus.SELECTED DRAWING: Figure 12

Description

  The present disclosure relates to an information providing method and an information providing program.

  2. Description of the Related Art Conventionally, when a maintenance worker newly performs repair work, a technique for supporting repair work by a maintenance person by referring to past cases based on sensor data acquired from equipment is known (for example, patents). Reference 1).

International Publication No. 2011/155023

  However, in the past cases used in the prior art, only that the repair has been completed is guaranteed, and it is not guaranteed whether or not the cost generated by the repair is appropriate. For this reason, when there are many cases where the cost is inappropriate, the maintenance staff may rely on the inappropriate case and may not perform appropriate repair work in terms of cost.

  The present disclosure solves the above-described conventional problems, and an object thereof is to provide an information providing method and an information providing program capable of causing a serviceman to perform an appropriate repair work in terms of cost.

  One aspect of the present disclosure is an information providing method in an information providing system, wherein first sensing data acquired by a first sensor provided in a first device of a plurality of devices connected to a network and the first sensor. Third sensing data indicating a difference from the obtained second sensing data is obtained from the first device, and the first sensing data is obtained in a first period on a repair date of the first device, and the second sensing data The data is acquired in a second period before the repair date, the first sensor acquires the physical quantity of the first device, the second database generated based on the first database, and the third sensing data Based on the information terminal corresponding to the first serviceman who repairs the first device, the recommended action is taken to eliminate the symptoms of the first device. The recommended information is displayed, and the first database acquires repair information for the one device generated each time one device of the plurality of devices is repaired, and stores the acquired repair information. And the repair information includes sixth sensing data indicating a difference between fourth sensing data obtained by a sensor provided in the one device and fifth sensing data obtained by the sensor, Information, second information, third information, and fourth information are associated with each other, and the fourth sensing data is acquired in a third period on the repair date of the one device, and the fifth sensing is performed. The data is acquired in a fourth period before the repair date, the sensor acquires the physical quantity of the one device, and the first information is the one device before the one device is repaired. The second information indicates a countermeasure taken for the one device, and the third information indicates whether the one device has been repaired after the repair date. The fourth information indicates whether or not the countermeasure indicated in the second information is good, and the sixth sensing data included in the repair information included in the first database is the sixth information. After grouping according to the value of the sensing data, it is determined that the cost for the countermeasure indicated by the second information corresponding to the grouped sixth sensing data is the lowest based on the third database. Indicates that the countermeasure indicated in the second information is good, otherwise indicates that the countermeasure indicated in the second information is not good, and the third database includes the plurality of The second database includes a plurality of pieces of reference information, and each of the plurality of pieces of reference information is stored in the first database in the first database. The combination of the symptom indicated by the information and the countermeasure indicated by the second information is the same, the third information indicates that the repair is not performed, and the fourth information indicates the One or more repair information items that are determined to be good are extracted, a statistical value of one or more sixth sensing data included in the extracted one or more repair information items is calculated, and the one or more repair information items are calculated. The first information and the second information included in the above repair information are generated by associating the calculated statistical values, and the recommended information is the third sensitivity. It calculates the distance value between each of said statistic value included in the second database as Gudeta, said a second information corresponding to the shortest distance value extracted by comparing each distance value.

  According to the present disclosure, it is possible to cause a serviceman to perform an appropriate repair work from the viewpoint of cost.

It is a figure showing an example of functional composition of a repair work support system in Embodiment 1 of this indication. It is a figure showing an example of sensor data at the time of normal operation in Embodiment 1 of this indication. It is a figure which shows an example of the sensor data difference information in Embodiment 1 of this indication. It is a figure which shows an example of the screen display of the information processing terminal in Embodiment 1 of this indication. It is a figure which shows an example of the screen display of the information processing terminal in Embodiment 1 of this indication. It is a figure which shows an example of the repair information in Embodiment 1 of this indication. It is a figure which shows an example of the repair information log | history in Embodiment 1 of this indication. It is a figure which shows an example of the repair expense information in Embodiment 1 of this indication. It is a figure explaining operation | movement of the repair information evaluation part in Embodiment 1 of this indication. It is a figure which shows an example of the sensor data difference reference value information in Embodiment 1 of this indication. It is a figure explaining operation | movement of the sensor data difference comparison part in Embodiment 1 of this indication. It is a sequence diagram which shows operation | movement of the information processing terminal and repair information management server in the repair work support system of Embodiment 1 of this indication. It is a figure which shows an example of a structure of the repair work assistance system in Embodiment 2 of this indication. It is a figure which shows an example of the sensor data in Embodiment 2 of this indication. It is a figure which shows an example of the screen display of the information processing terminal in Embodiment 2 of this indication. It is a figure which shows an example of the screen display of the information processing terminal in Embodiment 2 of this indication. It is a figure which shows an example of the sensor data which the sensor data storage part in Embodiment 2 of this indication accumulate | stores. It is a sequence diagram which shows operation | movement of the information processing terminal and repair information management server in the repair work support system of Embodiment 2 of this indication.

(Knowledge that became the basis of this disclosure)
Traditionally, as technology to support equipment repair work by maintenance personnel, information acquired from various sensors installed in equipment (hereinafter referred to as sensor data) and equipment maintenance information (failure phenomena, faulty parts, faults) A technique is known that collects as a case by associating a region and the like. Further, when a maintenance worker newly performs a repair work, a technique for supporting the repair work by the maintenance staff by referring to past cases based on the sensor data acquired from the device is known (for example, Patent Documents). 1).

  The technology of Patent Document 1 verifies whether the association between the sensor data and the maintenance information is appropriate when the sensor data and the maintenance information are associated with each other and stored in the database. As a result, only when it is determined to be valid, the sensor data and the maintenance information are associated and stored in the database as an example. This makes it possible to accumulate only highly reliable information.

  The validity verification in the technique of Patent Document 1 is performed based on the cases accumulated in the database. Specifically, in the technique of Patent Document 1, when a maintenance staff newly inputs sensor data and maintenance information to the database, a case that matches the newly input maintenance information is extracted from the database. Then, the validity is verified by comparing the value of the sensor data included in those cases with the value of the newly input sensor data.

  However, in the past cases used for the validity verification of the prior art, it is guaranteed only that the repair is completed by the input sensor data and maintenance information, and the cost generated by the repair is appropriate. There is no guarantee that it was. For example, for repair projects undertaken by maintenance personnel with low repair skills or inexperienced repair work, parts can be replaced even if they can be handled without having to replace the parts, or in addition to the minimum necessary parts replacement An extra cost may be generated by exchanging extra parts.

  In the technique of Patent Document 1, both the case where the repair is completed without replacing extra parts and the case where the repair is completed after replacing extra parts can be registered in the database. Therefore, especially when the latter cases are accumulated in the database, the repair contents that are actually erroneous from the viewpoint of cost are considered to be sufficiently reliable repair contents. If the verification is performed, the repair contents that are erroneous from the viewpoint of cost are recommended. As a result, the maintenance staff may not perform appropriate repair work from the viewpoint of cost. Based on the above findings, the present inventor has created a configuration of the present disclosure.

  An information providing method according to an aspect of the present disclosure is an information providing method in an information providing system, and includes first sensing data acquired by a first sensor provided in a first device of a plurality of devices connected to a network; Third sensing data indicating a difference from the second sensing data obtained by the first sensor is obtained from the first device, and the first sensing data is obtained in a first period on a repair date of the first device. The second sensing data is acquired in a second period before the repair date, the first sensor acquires a physical quantity of the first device, and a second database generated based on a first database; In order to eliminate the symptom of the first device on the information terminal corresponding to the first serviceman repairing the first device based on the third sensing data Recommended information indicating recommended measures is displayed, and the first database acquires repair information for the one device generated each time one device of the plurality of devices is repaired, and the acquired repair is performed. The repair information is generated by storing information, and the repair information is a sixth sensing indicating a difference between fourth sensing data acquired by a sensor provided in the one device and fifth sensing data acquired by the sensor. Data, first information, second information, third information, and fourth information are generated in association with each other, and the fourth sensing data is acquired in a third period on the repair date of the one device. The fifth sensing data is acquired in a fourth period before the repair date, the sensor acquires the physical quantity of the one device, and the first information is repaired by the one device. Symptom of the one device before the second information, the second information indicates a countermeasure taken for the one device, and the third information is repaired after the repair date for the one device. The fourth information indicates whether or not the countermeasure indicated in the second information is good, and the sixth information included in each of the repair information included in the first database. After sensing data is grouped according to the value of the sixth sensing data, the cost for the handling indicated by the second information corresponding to each grouped sixth sensing data based on a third database Indicates that the countermeasure indicated in the second information is good, otherwise indicates that the countermeasure indicated in the second information is not good, and the third data The base associates a measure for solving the symptoms of the plurality of devices with a cost for the measure, the second database includes a plurality of reference information, and each of the plurality of reference information includes the first reference information In the database, the combination of the symptom indicated by the first information and the countermeasure indicated by the second information is the same, the third information indicates that the re-repair is not performed, and the One or more repair information that is determined to be good by the fourth information is extracted, and a statistical value of one or more sixth sensing data included in the extracted one or more repair information is obtained. The recommended information generated by calculating and associating the first information and the second information included in the one or more repair information with the calculated statistical value, The second information corresponding to the shortest distance value extracted by calculating each distance value between the third sensing data and each statistical value included in the second database and comparing the distance values. It is.

  According to this configuration, the third sensor is the difference between the first and second sensing data acquired by the first sensor provided in the first device during the first period on the repair date and the second period before the repair date. Sensing data is acquired from the first device. In the same manner, the same symptom obtained from a plurality of devices, the same measures as the measures taken on the first device, the same measures as the first device, and the fact that it has not been repaired are shown. Each statistical value of the one or more sixth sensing data included in the one or more repair information determined that the cost of the second information is the cheapest based on the second sensing information is compared with the third sensing data. Then, in the second database, the second information associated with the statistical value closest to the third sensing data is displayed as recommended information on the information terminal corresponding to the first serviceman repairing the first device. .

  For this reason, even the first serviceman with low repair skills or inexperienced repair work refers to the recommended information indicating the action that is determined to be the cheapest based on the third database, and the appropriate repair work in terms of cost. It can be performed.

  In the above aspect, the first device may be an air conditioner, and the physical quantity may include one or more of a suction temperature, a discharge temperature, and an indoor piping temperature.

  According to this configuration, the first serviceman who repairs the air conditioner uses the third database to eliminate the symptom of the first device indicated by one or more of the suction temperature, the discharge temperature, and the indoor piping temperature of the air conditioner. It is possible to refer to the recommended information indicating the countermeasure determined to be the cheapest based on the above, and to perform an appropriate air conditioner repair work from the viewpoint of cost.

  In the above aspect, the statistical value may be an average value.

  According to this configuration, each average value of one or more sixth sensing data included in the second database is compared with the third sensing data, and the second database corresponds to the average value closest to the third sensing data. The attached second information is displayed as recommended information on the information terminal corresponding to the first serviceman repairing the first device. For this reason, when the first service person resolves the symptoms of the first device such that the variation in the third sensing data becomes large, the first service person can refer to the recommended information and take appropriate measures on average. it can.

  In the above aspect, the statistical value may be a median value.

  According to this configuration, each average value of one or more sixth sensing data included in the second database is compared with the third sensing data, and the second database corresponds to the median closest to the third sensing data. The attached second information is displayed as recommended information on the information terminal corresponding to the first serviceman repairing the first device. For this reason, the first service person can refer to the recommended information and take appropriate measures when the symptoms of the first device such that the third sensing data is concentrated on the median value are resolved.

  In the above aspect, the statistical value may be a mode value.

  According to this configuration, each mode value of one or more sixth sensing data included in the second database is compared with the third sensing data, and the mode value closest to the third sensing data in the second database. The second information associated with is displayed on the information terminal corresponding to the first service person repairing the first device as the recommended information. For this reason, the first service person can refer to the recommended information and take appropriate measures when solving the symptoms of the first device in which the third sensing data is concentrated on the mode value. .

  Further, in the above aspect, the repair information includes a repair date and time of the one device acquired via an information terminal corresponding to the one serviceman, and generates each of the plurality of pieces of reference information. In the above, the condition for extracting the one or more pieces of the repair information may further include that the repair date and time are climatic conditions close to each other.

  According to this configuration, the second information corresponding to any one of the statistical values of the one or more sixth sensing data included in the one or more repair information acquired in a climatic condition close to the repair date is recommended information. Is displayed on the information terminal corresponding to the first service person who repairs the first device. For this reason, when the first service person resolves the symptoms of the first device such that the third sensing data fluctuates greatly according to the climatic conditions, the first service person refers to the recommended information and is suitable for the climatic conditions of the repair date and time. Can be implemented.

  Further, in the above aspect, in the case where the repair information includes a model number of the one device obtained through an information terminal corresponding to the one serviceman, and generates each of the plurality of pieces of reference information. The condition for extracting the one or more repair information may further include that the model numbers are the same.

  According to this configuration, the second information corresponding to any one of the statistical values of the one or more sixth sensing data included in the one or more repair information acquired from the devices having the same model number is the first information as the recommended information. The information is displayed on the information terminal corresponding to the first service person who repairs the device. For this reason, when the first serviceman resolves the symptoms of the first device such that the third sensing data varies greatly depending on the model number, the first serviceman refers to the recommended information and is suitable for the model number of the first device. Action can be taken.

  Further, in the above aspect, the first sensor acquires a plurality of types of physical quantities of the first device, the sensor acquires a plurality of types of physical quantities of the one device, and the distance values are the first values. It may be calculated after normalizing each statistical value included in the 3 sensing data and the second database.

  According to this configuration, the third sensing data is configured by the same number of values as the plurality of types of physical quantities acquired by the first sensor included in the first device. Further, the sixth sensing data is configured by the same number of values as a plurality of types of physical quantities acquired by a sensor included in one device. For this reason, each statistical value of one or more 6th sensing data contained in the 2nd database is also constituted by the same number of a plurality of values as the data which constitutes the 6th sensing data.

  For this reason, even if the scales of the plurality of values constituting the third sensing data are greatly different from each other, and the scales of the plurality of values constituting the respective statistical values included in the second database are greatly different from each other, Based on each distance value calculated using each statistical value included in the normalized third sensing data and the normalized second database, appropriate measures are taken from the viewpoint of cost in consideration of the difference in scale. Recommended information can be obtained.

  Or the information provision method which concerns on 1 aspect of this indication is an information provision method in an information provision system, Comprising: The 1st sensing data is acquired from the 1st sensor with which the 1st apparatus of the several apparatus connected to the network was equipped. The first sensing data is acquired in a first period on the repair date of the first device, the first sensor acquires a physical quantity of the first device, and acquires second sensing data from the first sensor. The second sensing data is acquired in a second period before the repair date, and third sensing data indicating a difference between the first sensing data and the second sensing data is calculated, and is based on the first database. An information terminal corresponding to a first serviceman repairing the first device based on the second database generated in the above and the third sensing data Recommendation information indicating a recommended action for solving the symptom of the first device is displayed, and the first database corresponds to the one device generated each time one device of the plurality of devices is repaired. It is generated by acquiring repair information and storing the acquired repair information. The repair information is obtained by a fourth sensing data acquired by a sensor provided in the one device and a fourth sensor data acquired by the sensor. 5 is generated by associating the sixth sensing data indicating the difference with the sensing data, the first information, the second information, the third information, and the fourth information. Acquired in the third period on the repair date of the device, the fifth sensing data is acquired in a fourth period before the repair date, the sensor acquires the physical quantity of the one device, The first information indicates a symptom of the one device before the one device is repaired, the second information indicates a countermeasure applied to the one device, and the third information indicates the one device. The fourth information indicates whether or not the device indicated in the second information has been repaired after the repair date, and the fourth information indicates whether or not the countermeasure indicated in the second information is good. The sixth sensing data included in each included repair information is grouped according to the value of the sixth sensing data, and then corresponds to each of the grouped sixth sensing data based on a third database. If it is determined that the cost for the countermeasure indicated by the second information is the cheapest, it indicates that the countermeasure indicated by the second information is good; otherwise, the countermeasure indicated by the second information is The third database associates a measure for solving symptoms of the plurality of devices with a cost for the measure, and the second database includes a plurality of pieces of reference information, In the plurality of reference information, the combination of the symptom indicated by the first information and the countermeasure indicated by the second information is the same in the first database, and the re-repair is performed by the third information. One or more of the repair information that is indicated to be good by the fourth information, and one or more included in the one or more of the extracted repair information is extracted. A statistical value of the sixth sensing data is calculated, and the first information and the second information included in the one or more repair information are associated with the calculated statistical value. The recommended information is the shortest extracted by calculating each distance value between the third sensing data and each statistical value included in the second database and comparing the distance values. The second information corresponding to the distance value.

  According to this configuration, the first and second sensing data acquired by the first sensor provided in the first device during the first period on the repair date and the second period before the repair date are used to And third sensing data which is a difference between the second sensing data and the second sensing data. In the same manner, the same symptom obtained from a plurality of devices, the same symptom as the first device, the same measure as the measure taken for the first device, the fact that the repair has not been performed, and the third database Each statistical value of the one or more sixth sensing data included in the one or more repair information determined that the cost of the second information is the cheapest based on the second sensing information is compared with the third sensing data. Then, in the second database, the second information associated with the statistical value closest to the third sensing data is displayed as recommended information on the information terminal corresponding to the first serviceman repairing the first device. .

  For this reason, after calculating 3rd sensing data in a 1st apparatus, 3rd sensing data can be obtained more rapidly than the case where the said calculated 3rd sensing data is acquired from a 1st apparatus. As a result, even the first serviceman with low repair skills or inexperienced repair work can quickly refer to the recommended information indicating the action determined to be the cheapest based on the third database, and is appropriate in terms of cost. Repair work can be performed quickly.

  Further, the present disclosure discloses not only an information providing method for executing the characteristic processing as described above, but also a program for causing a computer to execute the characteristic processing included in the information providing method. It goes without saying that such a program can be distributed via a computer-readable non-transitory recording medium such as a CD-ROM or a communication network such as the Internet.

(Embodiment 1)
Hereinafter, Embodiment 1 of the present disclosure will be described with reference to the drawings. FIG. 1 is a diagram illustrating an example of a functional configuration of the repair work support system 10 according to the first embodiment of the present disclosure. As shown in FIG. 1, the repair work support system 10 (information providing system) according to the first embodiment includes a plurality of electronic devices (a plurality of devices) including a repair target device 100 (a first device, one device). , An information processing terminal 200 (information terminal) that a maintenance person brings to the repair site and a repair information management server 300 (computer) are provided.

  Each of the plurality of electronic devices including the repair target device 100 includes one or more sensors 101 (first sensors) and a normal operation sensor data management unit 102. Hereinafter, only the configuration of the repair target device 100 will be described on behalf of the plurality of electronic devices.

  Each of the one or more sensors 101 acquires and outputs one physical quantity necessary for controlling the operation of the repair target device 100. For example, when the repair target device 100 is an air conditioner, the one or more sensors 101 include a suction temperature sensor that acquires and outputs a suction temperature as the physical quantity, a discharge temperature sensor that acquires and outputs a discharge temperature as the physical quantity, An indoor unit piping temperature sensor that acquires and outputs the piping temperature of the indoor unit as the physical quantity is included.

  In the following description, it is assumed that the repair target device 100 is an air conditioner and includes the suction temperature sensor, the discharge temperature sensor, and the indoor unit piping temperature sensor. However, the plurality of electronic devices including the repair target device 100 according to the present disclosure are not limited to air conditioners. The one or more sensors 101 are not limited to the suction temperature sensor, the discharge temperature sensor, and the indoor unit piping temperature sensor.

  The normal operation sensor data management unit 102 manages normal operation sensor data including values output by one or more sensors 101 when the repair target device 100 is operating normally.

  The normal operation sensor data management unit 102 is a rewritable nonvolatile memory, a storage device having a predetermined storage capacity such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive), and data reading / writing to the storage device. It comprises a microcomputer for controlling the above. The microcomputer includes a CPU, a ROM, a RAM, and the like, and is a control device that performs predetermined control by causing the CPU to execute a predetermined control program stored in the ROM.

  FIG. 2 is a diagram illustrating an example of sensor data during normal operation according to Embodiment 1 of the present disclosure. The normal operation sensor data management unit 102 manages the normal operation sensor data using the normal data table T4 shown in FIG. The normal data table T4 is configured by a predetermined storage area of the storage device.

  The normal operation sensor data includes a time stamp 400, a suction temperature 401, a discharge temperature 402, an indoor piping temperature 403, and the like. The normal operation sensor data management unit 102 stores each information 400 to 403 included in the normal operation sensor data in the normal data table T4 in association with each other.

  The time stamp 400 is a date and time when sensor data during normal operation is generated by acquiring output values of one or more sensors 101. The suction temperature 401 is an output value of the suction temperature sensor. A discharge temperature 402 is an output value of the discharge temperature sensor. The indoor piping temperature 403 is an output value of the piping temperature sensor of the air conditioner indoor unit.

  Note that the output values of one or more sensors 101 included in the normal operation sensor data are not limited to 401 to 403, and any sensor 101 mounted on the repair target device 100 such as the rotation speed of an indoor fan of an air conditioner. May be included. The normal operation sensor data managed by the normal operation sensor data management unit 102 is, for example, one or more acquired during a certain period (for example, about five minutes) immediately after the first operation of the repair target device 100 is started. The sensor data may be limited to normal operation sensor data consisting of the output values of the sensor 101.

  When the storage capacity of the storage device is sufficient, the sensor data management unit 102 during normal operation has a second constant value every time a first fixed period (for example, one month) has elapsed since the operation start of the repair target device 100. You may make it newly manage the sensor data at the time of normal operation which consists of the output value of one or more sensors 101 acquired during the period (for example, about 5 minutes).

  On the other hand, if the storage capacity of the storage device is not sufficient, the normal operation sensor data management unit 102 may manage only normal operation sensor data output during the most recent second fixed period. Good. That is, every time the first fixed period elapses, the normal operation sensor data management unit 102 stores the normal operation sensor data for the second fixed period that has already been managed, in the latest second fixed period. You may make it update with the sensor data at the time of normal operation acquired in the meantime.

  Returning to FIG. The information processing terminal 200 is configured by an information processing apparatus including a microcomputer, such as a tablet terminal or a notebook computer. The information processing terminal 200 is a terminal that is rented to or owned by (corresponding to) the maintenance staff (first serviceman) who repairs the repair target device 100, and is brought to the repair site by the maintenance staff. . The information processing terminal 200 is connected to the repair target device 100 so as to be directly communicable by a maintenance staff who arrives at the repair site. In addition, the information processing terminal 200 is connected to the repair information management server 300 through the network 90 or in advance via the network 90.

  The information processing terminal 200 includes a UI unit 210, a communication unit 203, a sensor data acquisition unit 201, a sensor data difference calculation unit 202, a display UI generation unit 204, and a repair information generation unit 205.

  The UI unit 210 includes a display unit 211 and an input unit 212. The display unit 211 includes, for example, an organic EL (organic electroluminescence) panel, an LCD (Liquid Crystal Display), and the like, and displays an operation screen of the information processing terminal 200. The input unit 212 includes, for example, a keyboard (hard key), a mouse, a soft key provided in the operation screen, a touch panel device, and the like, and is used to input instructions and information to the information processing terminal 200 by maintenance personnel. .

  The communication unit 203 is configured by a communication circuit that performs communication using a network 90 such as a wired LAN, a wireless LAN, or a communication network of a portable information terminal carrier. The communication unit 203 is configured by a communication circuit that directly communicates with an external device such as the repair target device 100 by using Bluetooth (registered trademark) or the like without using the network 90. The communication unit 203 communicates with the repair information management server 300 via the network 90 and directly communicates with the repair target device 100 without using the network 90.

  The sensor data acquisition unit 201, the sensor data difference calculation unit 202, the display UI generation unit 204, and the repair information generation unit 205 have a control program stored in a ROM or the like included in the microcomputer of the information processing terminal 200. It is configured by being executed by a CPU provided.

  The sensor data acquisition unit 201 has a fixed period (first period, third period) after the information processing terminal 200 and the repair target device 100 are communicably connected on the repair date when the maintenance staff arrives at the repair site. Output values (first sensing data, fourth sensing data) of one or more sensors 101 mounted on the repair target device 100 are acquired. Hereinafter, the certain period is referred to as a first period.

  The sensor data acquisition unit 201 also manages the time stamp 400 within a certain period (second period, fourth period) before the repair date, which is managed by the sensor data management unit 102 during normal operation (FIG. 2). Normal operation sensor data (second sensing data, fifth sensing data) including Hereinafter, a certain period before the repair date is referred to as a second period.

  In FIG. 1, for the sake of space, the sensor data acquisition unit 201 is illustrated to acquire the output value of one or more sensors 101 and the sensor data during normal operation directly from the repair target device 100. However, in actuality, the sensor data acquisition unit 201 communicates with the repair target device 100 via the communication unit 203, so that the output value of one or more sensors 101 from the repair target device 100 and the normal operation time Get sensor data.

  Further, as described above, it is assumed that the normal operation sensor data management unit 102 newly manages the normal operation sensor data for the second predetermined period every time the first predetermined period elapses. . In this case, the sensor data acquisition unit 201 refers to the time stamp 400 (FIG. 2) included in the managed normal operation sensor data, and corresponds to the date and time when the repair date and time of the repair target device 100 are close to the climatic conditions. Only sensor data during normal operation may be acquired.

  Specifically, the date when the information processing terminal 200 and the repair target device 100 are communicably connected is defined as a repair date, and the repair date represents a plurality of predetermined climates (eg, summer, winter, etc.). The sensor data acquisition unit 201 may be configured to determine which period of a period (eg, June to August, October to December, etc.) is included. Further, the time when the information processing terminal 200 and the repair target device 100 are communicably connected is set as the repair time, and the repair time is 24 time zones of the day (eg, the time zone from 14:00 to 15:00). ), The sensor data acquisition unit 201 may be configured to determine which time zone is included.

  Of the normal operation sensor data managed by the normal operation sensor data management unit 102, the time corresponding to the combination of the determined period and time zone (for example, from 14:00 to 15:00 in June to August). The sensor data acquisition unit 201 may be configured to acquire normal operation sensor data including the stamp 400 (FIG. 2) as normal operation sensor data having a date and time when the repair date and time of the repair target device 100 are close to each other. .

  The sensor data difference calculation unit 202 calculates one or more statistical values in the first period using the output values of the one or more sensors 101 acquired by the sensor data acquisition unit 201 in the first period. The one or more statistical values in the first period include an average value, a standard deviation, a maximum value, a minimum value, and the like of the output values of the one or more sensors 101 in the first period. In addition, the one or more statistical values in the first period include a plurality of sensors in the first period, such as an average value of differences between the output value of one sensor 101 in the first period and the output value of the other sensor 101. A statistical value calculated using the output value of 101 may be included. Hereinafter, one or more statistical values in the first period are referred to as one or more first statistical values.

  In addition, the sensor data difference calculation unit 202 uses the output values of the one or more sensors 101 included in the normal operation sensor data acquired by the sensor data acquisition unit 201 in the second period, and outputs one or more first statistical values. Similarly, one or more statistical values in the second period are calculated. Hereinafter, the normal operation sensor data acquired by the sensor data acquisition unit 201 in the second period is referred to as normal operation sensor data corresponding to the second period. One or more statistical values in the second period are referred to as one or more second statistical values.

  For example, it is assumed that the average value of the output values of the suction temperature sensor in the first period is included in one or more first statistical values. In this case, the sensor data difference calculation unit 202 is similar to the average value of the output values of the suction temperature sensor in the first period, and the average of the output values of the suction temperature sensor included in the normal operation sensor data corresponding to the second period. Calculate the value.

  Further, it is assumed that the one or more first statistical values include an average value of the difference between the output value of one sensor 101 and the output value of the other sensor 101 in the first period. In this case, like the average value, the sensor data difference calculation unit 202 outputs the output value of the one sensor 101 and the output value of the other sensor 101 included in the normal operation sensor data corresponding to the second period. The average value of the differences is calculated.

  Then, the sensor data difference calculation unit 202 calculates one or more differences between each of the one or more first statistic values and each of the one or more second statistic values similar to the first statistic value. Sensor data difference information (third sensing data, sixth sensing data) including one or more differences is generated. Then, the sensor data difference calculation unit 202 transmits the generated sensor data difference information to the repair information management server 300 via the communication unit 203.

  FIG. 3 is a diagram illustrating an example of sensor data difference information according to the first embodiment of the present disclosure. As shown in FIG. 3, the sensor data difference information includes date and time 500, failure content 501, suction temperature average value difference 502, suction temperature standard deviation difference 503, suction temperature maximum value difference 504, suction temperature minimum value difference 505, discharge A temperature average value difference 506 and the like are included.

  The date and time 500 is the date and time when the sensor data difference calculation unit 202 generates sensor data difference information. The failure content 501 is the content of the failure of the repair target device 100 and is input by a maintenance staff using a display screen generated by the display UI generation unit 204 described later.

  The suction temperature average value difference 502, the suction temperature standard deviation difference 503, the suction temperature maximum value difference 504, and the suction temperature minimum value difference 505 are respectively acquired by the sensor data acquisition unit 201 in the first period. Suction included in normal operation sensor data corresponding to the second period acquired by the sensor data acquisition unit 201 and the average value, standard deviation, maximum value, minimum value (first statistical value) of the output value of the suction temperature sensor It is the difference between the average value, standard deviation, maximum value, and minimum value (second statistical value) of the output values of the temperature sensor.

  The discharge temperature average value difference 506 is acquired by the sensor data acquisition unit 201 and the average value (first statistical value) of the output value of the discharge temperature sensor of the air conditioner indoor unit acquired by the sensor data acquisition unit 201 in the first period. It is a difference with the average value (2nd statistical value) of the output value of the discharge temperature sensor contained in the normal operation sensor data corresponding to the second period.

  The sensor data difference calculation unit 202 is not limited to the difference indicated by these 502 to 506 but includes any difference between the average values of the output values of the indoor piping temperature sensors and the like of any sensor 101 mounted on the repair target device 100. A difference between an arbitrary first statistical value and a second statistical value may be calculated, and the calculated difference may be included in the sensor data difference information.

  Further, the sensor data difference calculation unit 202 includes a plurality of average values, correlation coefficients, and the like of the difference between the output value of the suction temperature sensor and the output value of the discharge temperature sensor acquired by the sensor data acquisition unit 201 in the first period. A statistical value (hereinafter, third statistical value) may be calculated by combining the output values of the sensor 101. Accordingly, the sensor data difference calculation unit 202 outputs the output value of the suction temperature sensor and the output value of the discharge temperature sensor included in the normal operation sensor data corresponding to the second period acquired by the sensor data acquisition unit 201. A statistical value (hereinafter referred to as a fourth statistical value) may be calculated by combining the output values of the plurality of sensors 101 included in the normal operation sensor data, such as the average value of the difference and the correlation coefficient. Then, the sensor data difference calculation unit 202 may include the difference between the third statistical value and the fourth statistical value calculated from the combination of the output values of the plurality of sensors 101 in the sensor data difference information.

  The display UI generation unit 204 includes output values of one or more sensors 101 acquired by the sensor data acquisition unit 201 in the first period, recommended repair correspondence information (recommended information) acquired from a sensor data difference comparison unit 307 described later, and the like. Is generated, and the generated screen is displayed on the display unit 211.

  4 and 5 are diagrams illustrating an example of a screen display of the information processing terminal 200 according to Embodiment 1 of the present disclosure. Specifically, FIG. 4 shows an example of the display content of the screen including the output values of one or more sensors 101 acquired by the sensor data acquisition unit 201 within the first period. FIG. 5 further shows an example of the display content of the screen including the recommended repair correspondence information acquired from the sensor data difference comparison unit 307.

  When the maintenance person connects the information processing terminal 200 to the repair target device 100 so that the apparatus can be repaired, and the sensor data acquisition unit 201 starts acquiring the output values of one or more sensors 101, the display UI generation unit 204 displays the screen shown in FIG. And the generated screen is displayed on the display unit 211. As shown in FIG. 4, the screen includes input fields 600 to 603, buttons 610 to 611, and graphs 620 to 622.

  The input column 600 is a column for inputting a repair date and time when the maintenance staff performs repair work. When the screen shown in FIG. 4 is displayed, the display UI generation unit 204 may automatically input the current date and time counted by the information processing terminal 200 into the input field 600.

  The input field 601 is a field for inputting information (hereinafter referred to as a maintenance person ID) for specifying a maintenance person. The input column 602 is a column for inputting a failure content (symptom) of the repair target device 100. The input column 603 is a column for inputting the content (coping) of the repair finally performed on the repair target device 100 by the maintenance staff.

  For example, the input fields 600, 601, and 603 are configured by screen components such as text boxes. The input field 602 is composed of screen parts such as a list box that allows a maintenance person to select one failure content from a plurality of predetermined failure details. However, not limited to this, like the input fields 600, 601, and 603, the input field 602 is composed of screen parts such as a text box, and maintenance personnel are allowed to manually input the failure details using the input unit 212. Also good.

  A button 610 is a button (soft key) for generating repair information (to be described later) from information input in the input fields 600 to 603 and inputting an instruction to transmit the generated repair information to the repair information management server 300. is there. The button 611 generates sensor data difference information (FIG. 3) in the sensor data difference calculation unit 202, transmits the generated sensor data difference information to the repair information management server 300, and the recommended repair acquired from the repair information management server 300. This is a button for inputting an instruction to display correspondence information.

  Graphs 620 to 622 are graphs that display the output values of one or more sensors 101 acquired by the sensor data acquisition unit 201 in time series. Although three graphs are displayed in FIG. 4, the number of displayed graphs is not limited to three. Further, instead of the graphs 620 to 622, the screen configuration may be such that the output values of one or more sensors 101 are displayed in time series in a table format, for example.

  When the maintenance staff presses the button 611, the display UI generation unit 204 causes the display unit 211 to display the screen illustrated in FIG. As shown in FIG. 5, the screen includes input fields 600 to 603, buttons 610 to 611, graphs 620 to 622, and a dialog 700. The input fields 600 to 603, buttons 610 to 611, and graphs 620 to 622 in FIG. 5 are the same as the input fields 600 to 603, buttons 610 to 611, and graphs 620 to 622 in FIG.

  The dialog 700 is a dialog showing recommended repair correspondence information acquired from the repair information management server 300 after the maintenance person presses the button 611 (FIG. 4). In the screen shown in FIG. 5, a dialog 700 indicating the recommended repair correspondence content information “No parts replacement” acquired from the repair information management server 300 is popped up so as to overlap the graphs 620 to 622. Note that the recommended repair response content information “no parts replacement” means that as a result of checking the sensor data difference information, there is no failure in the repair target device 100 that requires parts replacement.

  For example, when the repair target device 100 is an air conditioner, even if the air conditioner has not failed, the cooling capacity of the air conditioner may be originally lower than the size of the room where the air conditioner is installed. In this case, since the cooling is not effective, the user may suspect a failure of the air conditioner and request repair. In such a case, if the recommended repair response information indicating “no parts replacement” is obtained from the repair information management server 300, even if the maintenance staff has low repair skills or has a low repair work experience, unnecessary parts replacement is performed. Instead, the repair work can be completed by, for example, presenting a method for improving the specification environment of the device.

  Returning to FIG. The repair information generation unit 205 uses the input unit 212 to input information in the input fields 600 to 603 in FIG. 5 and the sensor data difference information generated by the sensor data difference calculation unit 202 to repair information. Is generated.

  FIG. 6 is a diagram illustrating an example of repair information according to the first embodiment of the present disclosure. As shown in FIG. 6, the repair information includes a repair date and time 800, a maintenance person ID 801, a failure content 802, a device ID 803, a model number 804, correspondence information 805, and sensor data difference information 806.

  The repair date 800 is information input in the input field 600 of FIG. The maintenance staff ID 801 is information input in the input field 601 in FIG. The failure content 802 is information input in the input field 602 of FIG. The device ID 803 is an ID for uniquely identifying the repair target device 100. The model number 804 is the model number of the repair target device 100. The device ID 803 and the model number 804 are stored in advance in a ROM of a microcomputer provided in the repair target device 100. The correspondence information 805 is information input in the input field 603 in FIG. The sensor data difference information 806 is sensor data difference information generated by the sensor data difference calculation unit 202.

  The device ID 803 and the model number 804 may be acquired as follows. The repair information generation unit 205 generates a repair ID, a device ID and a model number associated with the repair date and time 800 and the maintenance person ID 801 in the repair request information (not shown) managed by the repair information management server 300 at the timing of generating the repair information. As the device ID 803 and the model number 804. The repair request information is information indicating the content of the request obtained by hearing from the user when a repair request is received from the user of the repair target device 100 by telephone or the like. For example, in the repair request information, the date and time when the repair request was made, the scheduled date and time for the repair, and information for identifying the user who requested the repair request (eg: address, name, age and telephone number of the user) ), The device ID and model number of the device 100 to be repaired, and the maintenance personnel ID for identifying the maintenance personnel performing the repair.

  That is, the repair information generating unit 205 matches the scheduled date and time that matches the repair date and time 800 and the maintenance person ID 801 in the repair request information managed by the repair information management server 300 at the timing of generating repair information. The device ID and model number of the repair target device 100 included in the repair request information including the maintenance personnel ID to be acquired are acquired as a device ID 803 and a model number 804.

  However, the acquisition method of the device ID 803 and the model number 804 is not limited to the above method, and an input field for inputting the device ID and model number of the repair target device 100 is provided on the screen illustrated in FIGS. 4 and 5. The input device ID and model number may be acquired.

  Returning to FIG. The repair information management server 300 includes a display device such as an organic EL panel or LCD, an input device such as a keyboard and a mouse or a touch panel device, a storage device having a predetermined storage capacity such as an HDD or SSD, and a microcomputer. It consists of more than one server device.

  The repair information management server 300 includes a communication unit 301, a repair information history management unit 302, a repair information evaluation unit 303, a repair cost information management unit 304, a sensor data difference reference value calculation unit 305, a sensor data difference reference value information management unit 306, A sensor data difference comparison unit 307 is provided.

  The communication unit 301 includes a communication circuit that performs communication using the network 90, and performs communication with an external device such as the information processing terminal 200 via the network 90.

  The repair information history management unit 302, the repair information evaluation unit 303, the repair cost information management unit 304, the sensor data difference reference value calculation unit 305, the sensor data difference reference value information management unit 306, and the sensor data difference comparison unit 307 are repair information management. A control program stored in a ROM or the like included in the microcomputer of the server 300 is configured to be executed by a CPU included in the microcomputer.

  When the repair information transmitted by the information processing terminal 200 is received by the communication unit 301, the repair information history management unit 302 manages the received repair information as a repair information history.

  FIG. 7 is a diagram illustrating an example of repair information history according to the first embodiment of the present disclosure. The repair information history management unit 302 manages each repair information received by the communication unit 301 as a repair information history using the repair information history table T9 (first database) shown in FIG. The repair information history table T9 is configured by a predetermined storage area of a storage device provided in the repair information management server 300.

  The repair information managed as the repair information history includes repair ID 900, repair date 901, maintenance staff ID 902, failure content 903 (first information), device ID 904, model number 905, correspondence information 906 (second information), sensor data. Difference information 907 (sixth sensing data), presence / absence of repair 908 (third information), and evaluation 909 (fourth information) are included. The repair information history management unit 302 stores these pieces of information 900 to 909 in association with each other in the repair information history table T9.

  The repair ID 900 is information for uniquely identifying the repair information that is given to the repair information received from the information processing terminal 200 by the repair information history management unit 302.

  The repair date and time 901, maintenance personnel ID 902, failure content 903, device ID 904, model number 905, correspondence information 906, and sensor data difference information 907 are included in the repair information (FIG. 6) received from the information processing terminal 200, respectively. The date and time 800, maintenance personnel ID 801, failure content 802, device ID 803, model number 804, correspondence information 805, and sensor data difference information 806.

  Whether or not re-repair 908 is performed is the same as that of the same repair target device 100 after the repair is completed once and the repair information transmitted after the repair is completed is managed by the repair information history management unit 302. This information indicates whether or not a failure has occurred and the maintenance staff has repaired the product.

  Note that when the repair information history management unit 302 manages the repair information received from the information processing terminal 200 for the first time, the value of re-repair presence / absence 908 is “None” indicating that the maintenance staff has not re-repaired. . The repair information history management unit 302 receives from the information processing terminal 200 repair information (FIG. 6) including a device ID 803 and a failure content 802 that match the device ID 904 and the failure content 903 included in the already managed repair information. In this case, the value of re-repair presence / absence 908 in the repair information already managed is updated to “present” indicating that the maintenance staff has re-repaired. At the same time, the repair information history management unit 302 newly manages the received repair information as a repair information history, and sets the value of the repair information 908 of the newly managed repair information to “Yes”.

  The evaluation 909 indicates a result of evaluation by a repair information evaluation unit 303 described later on whether or not the content of repair correspondence indicated by the correspondence information 906 included in each repair information is appropriate from the viewpoint of cost (whether the countermeasure is good). Information. In FIG. 7, for repair information including correspondence information 906 indicating the contents of repair correspondence evaluated as appropriate (good), the evaluation 909 of the repair information is “◯”. For repair information including correspondence information 906 indicating the content of repair correspondence evaluated as inappropriate, the evaluation 909 of the repair information is “x”. For repair information including correspondence information 906 indicating the contents of repair correspondence that has not been evaluated, the evaluation 909 of the repair information is set to “−”.

  Returning to FIG. For each piece of repair information managed as a repair information history (FIG. 7) by the repair information history management unit 302, the repair information evaluation unit 303 repairs the repair cost information ( Referring to FIG. 8), an evaluation (determination) is made as to whether or not the contents of repair are appropriate from the viewpoint of cost. A method for evaluating the contents of repair by the repair information evaluation unit 303 will be described later.

  The repair cost information management unit 304 manages repair cost information indicating a cost that is incurred every time the maintenance staff performs repairs. FIG. 8 is a diagram illustrating an example of repair cost information according to the first embodiment of the present disclosure. Specifically, the repair cost information management unit 304 manages repair cost information using the cost management table T10 (third database) shown in FIG. The cost management table T10 is configured by a predetermined storage area of a storage device provided in the repair information management server 300.

  As illustrated in FIG. 8, the repair cost information managed by the repair cost information management unit 304 includes correspondence information 1000 and a cost 1001. The correspondence information 1000 is a content of repair correspondence that can be taken by the maintenance staff for the repair target device 100. The cost 1001 is a cost that is incurred when the maintenance staff performs repair corresponding to the content indicated by the response information 1000.

  Hereinafter, a method in which the repair information evaluation unit 303 evaluates whether or not the content of repair is appropriate for each piece of repair information managed as the repair information history by the repair information history management unit 302 will be described.

  FIG. 9 is a diagram illustrating the operation of the repair information evaluation unit 303 according to the first embodiment of the present disclosure, and is a diagram illustrating the sensor data difference feature amount space on a two-dimensional plane. Here, the sensor data difference feature amount space is a space having each of the one or more differences included in the sensor data difference information 907 of each repair information (FIG. 7) as a feature amount. In FIG. 9, for convenience of explanation, a two-dimensional space in which the suction temperature average value difference and the discharge temperature average value difference included in the sensor data difference information 907 (FIG. 7) are feature quantities is illustrated. However, in reality, when the sensor data difference information 907 (FIG. 7) includes N differences, the sensor data difference feature amount space is N-dimensional.

  The repair information evaluation unit 303 first includes each repair information (FIG. 7) managed by the repair information history management unit 302 in the sensor data difference information 907 of each repair information in the sensor data difference feature amount space. Plotting is performed at the positions corresponding to the suction temperature average value difference and the discharge temperature average value difference.

  As a result, the repair information evaluation unit 303, for example, as shown in FIG. 9, converts the four pieces of repair information whose correspondence information 906 is “no part replacement” into sensor data difference information 907 included in each repair information. Plotting is performed at the positions indicated by ◯ marks 1100 to 1103, which are positions corresponding to the suction temperature average value difference and the discharge temperature average value difference. Similarly, the repair information evaluation unit 303 plots five pieces of repair information whose correspondence information 906 is “part A replacement” at the positions of ◎ marks 1110 to 1114, and the correspondence information 906 is “part B replacement”. A piece of repair information is plotted at the position of the mark 1120.

  Next, the repair information evaluation unit 303 groups each repair information plotted on the sensor data difference feature amount space by a predetermined clustering method based on one or more difference values included in the sensor data difference information 907. Here, grouping each piece of repair information indicates that each piece of repair information is assigned to one or more groups. As a clustering method, for example, a k-average method of grouping according to the proximity of the distance where each repair information is plotted can be applied.

  In the first embodiment, the repair information evaluation unit 303 uses a k-average method as a clustering method. In this case, the repair information evaluation unit 303 classifies the ten repair information plotted on the sensor data difference feature amount space illustrated in FIG. 9 into two groups 1200 to 1201. Note that the clustering method used by the repair information evaluation unit 303 is not limited to the k-average method, and may be a known clustering method.

  The repair information evaluation unit 303 then repairs the contents indicated by the correspondence information 906 (FIG. 7) of each repair information grouped based on the repair cost information (FIG. 8) managed by the repair cost information management unit 304. When the cost generated when a response is made is the lowest, the content indicated by the corresponding information 906 (FIG. 7) is evaluated as appropriate, and otherwise, the corresponding information 906 (FIG. 7) indicates Evaluate content as inappropriate.

  For example, as shown in FIG. 9, four pieces of repair information in which the correspondence information 906 is “no parts replacement” plotted at the positions of the circles 1100 to 1103 and the correspondence information 906 plotted at the positions of the ◎ marks 1110. It is assumed that one piece of repair information with “part A replacement” is grouped into a group 1200. Further, it is assumed that the repair cost information shown in FIG. 8 is managed by the repair cost information management unit 304.

  In this case, in the repair cost information shown in FIG. 8, the cost generated when the repair information corresponding to the correspondence information 1000 “no parts replacement” is “0”, and the repair correspondence corresponding to the correspondence information 1000 “part A replacement” is performed. The cost incurred when going is “1000”. In other words, among the correspondence information 906 of the five pieces of repair information grouped in the group 1200, the cost generated when the repair correspondence corresponding to the correspondence information 906 “no parts replacement” is performed is the lowest.

  Therefore, the repair information evaluation unit 303 indicates “no part replacement” indicated by the correspondence information 906 of the four repair information plotted at the positions of the circles 1100 to 1103 among the five repair information grouped in the group 1200. Evaluates as appropriate. Then, the repair information evaluation unit 303 updates the evaluation 909 of the four repair information managed by the repair cost information management unit 304 to “◯”.

  On the other hand, the repair information evaluation unit 303 indicates that the “replacement of parts A” indicated by the correspondence information 906 of one piece of repair information plotted at the position indicated by the 印 mark 1110 out of the five pieces of repair information grouped into the group 1200 is inappropriate. Evaluate that there is. Then, the repair information evaluation unit 303 updates the evaluation 909 of the single repair information managed by the repair cost information management unit 304 to “x”.

  Similarly, the repair information evaluation unit 303 indicates “replacement of part A” indicated by the correspondence information 906 of the four repair information plotted at the positions of the ◎ marks 1111 to 1114 among the five repair information grouped in the group 1201. "Is evaluated as appropriate, and the evaluation 909 of the four pieces of repair information managed by the repair cost information management unit 304 is updated to" O ". Further, the repair information evaluation unit 303 evaluates that “part B replacement” indicated by the correspondence information 906 of one piece of repair information plotted at the position of the mark ● 1120 is inappropriate, and is managed by the repair cost information management unit 304. The evaluation 909 of the one piece of repair information is updated to “x”.

  It is assumed that the scales of the values of the one or more differences included in the sensor data difference information 907 of each repair information (FIG. 7) are greatly different from each other. In this case, the repair information evaluation unit 303 uses the sensor data difference feature having a characteristic value obtained by normalizing each value of the one or more differences included in the sensor data difference information 907 of each repair information (FIG. 7). You may make it perform the above-mentioned evaluation using quantity space.

  The sensor data difference reference value calculation unit 305 includes a failure content 903, correspondence information 906, re-repair presence / absence 908, evaluation 909, and sensor data included in each repair information managed as repair information history by the repair information history management unit 302. Based on the difference information 907, the statistical value of the sensor data difference information 907 is calculated as a reference value of the sensor data difference information 907 when appropriate repair is performed from the viewpoint of cost. Here, the statistical value of the sensor data difference information 907 is a statistical value of each of the one or more differences included in the sensor data difference information 907. The reference value of the sensor data difference information 907 is a reference value for each of the one or more differences included in the sensor data difference information 907.

  The sensor data difference reference value calculation unit 305 then associates the failure information 903 and the correspondence information 906 of the repair information used for calculating the statistical value of the sensor data difference information 907 with the calculated statistical value. Difference reference value information (reference information) is generated.

  FIG. 10 is a diagram illustrating an example of sensor data difference reference value information according to the first embodiment of the present disclosure. The sensor data difference reference value information is managed by a sensor data difference reference value information management unit 306 described later using a reference value table T13 (second database) shown in FIG. The reference value table T13 is configured by a predetermined storage area of a storage device provided in the repair information management server 300.

  The sensor data difference reference value information includes failure content 1300 (first information) and recommended repair response information 1301 (second information). The failure content 1300 is the failure content 903 of the repair information used for calculating the statistical value of the sensor data difference information 907. The recommended repair correspondence information 1301 is the repair information correspondence information 906 used for calculating the statistical value of the sensor data difference information 907.

  The sensor data difference reference value information is calculated by the sensor data difference reference value calculation unit 305 as the reference value (statistical value) of the sensor data difference information (FIG. 3) corresponding to the failure content 1300 and the recommended repair correspondence information 1301. Suction temperature average value difference average value 1302, suction temperature standard deviation difference average value 1303, suction temperature maximum value difference average value 1304, suction temperature minimum value difference average value 1305, discharge temperature average value difference average value 1306, etc. It is.

  Hereinafter, the sensor data difference reference value information in which the failure content 1300 by the sensor data difference reference value calculation unit 305 is “not cooled” and the recommended repair correspondence information 1301 is “part A replacement” is taken as an example. A method for generating reference value information will be described.

  The sensor data difference reference value calculation unit 305 includes the repair information (FIG. 7) managed by the repair information history management unit 302 as the repair information history, the failure content 903 is “not cooled”, and the correspondence information 906. Is one or more pieces of repair information in which “replacement of parts A”, re-repair presence / absence 908 is “none”, and evaluation 909 is “◯”.

  Then, the sensor data difference reference value calculation unit 305 uses the suction temperature average value included in the sensor data difference information 907 as a statistical value of the sensor data difference information 907 (FIG. 7) included in the extracted one or more pieces of repair information. The average value of the difference, the suction temperature standard deviation difference, the suction temperature maximum value difference, the suction temperature minimum value difference, and the discharge temperature average value difference is calculated.

  Then, the sensor data difference reference value calculation unit 305 displays the failure content 903 “not cooled” and the correspondence information 906 “part A replacement” included in the one or more extracted repair information, the failure content 1300 and the recommended repair correspondence information 1301. The sensor data difference reference value information is generated. Further, the sensor data difference reference value calculation unit 305 calculates the average values of the calculated suction temperature average value difference, suction temperature standard deviation difference, suction temperature maximum value difference, suction temperature minimum value difference, and discharge temperature average value difference. The suction temperature average value difference average value 1302, the suction temperature standard deviation difference average value 1303, the suction temperature maximum value difference average value 1304, the suction temperature minimum value difference average value 1305, and the discharge temperature of the generated sensor data difference reference value information. The average difference average value 1306 (FIG. 10) is used.

  Thus, the sensor data difference reference value calculation unit 305 considers that the repair content related to the repair information whose re-repair presence / absence 908 is “present” is insufficient, and therefore the re-repair presence / absence 908 is “present”. Certain repair information is not used to generate sensor data difference reference value information. In addition, the repair information whose evaluation 909 is “x” includes the content of repairs that are determined to be inappropriate from the viewpoint of cost by maintenance personnel. For this reason, the sensor data difference reference value calculation unit 305 does not use the repair information with the evaluation 909 of “x” to generate the sensor data difference reference value information. Further, the content of the repair related to the repair information whose evaluation 909 is “−” has not been evaluated by the maintenance staff. For this reason, the sensor data difference reference value calculation unit 305 does not use repair information with an evaluation 909 of “−” to generate sensor data difference reference value information.

  In the same manner as in the above example, the sensor data difference reference value calculation unit 305 includes sensor data difference reference value information whose failure content 1300 is “not cooled” and whose recommended repair response information 1301 is not “part A replacement”. The sensor data difference reference value information in which the failure content 1300 is not “not cooled” and the recommended repair response information 1301 is “part A replacement” is generated.

  As described above, the sensor data difference reference value calculation unit 305 includes the failure content (for example, “not cooled”) indicated by the failure content 903 and the repair content (for example, “part A replacement”) indicated by the correspondence information 906. The combination is the same as each other, it is shown that re-repair is not performed by re-repair presence / absence 908 (for example, “None”), and that it is determined as appropriate by evaluation 909 (for example: “O”) Extract one or more repair information (FIG. 7). Then, the sensor data difference reference value calculation unit 305 calculates a statistical value of each of the one or more differences included in the sensor data difference information 907 of the extracted one or more repair information (FIG. 7).

  Then, the sensor data difference reference value calculation unit 305 associates the failure content 903 and the correspondence information 906 included in the one or more extracted repair information with the one or more calculated average values. Reference value information (FIG. 10) is generated.

  The sensor data difference reference value information includes one or more differences (eg, suction temperature average value difference) included in the sensor data difference information 907 (FIG. 7) as shown in 1302-1306 (FIG. 10). Not only the average value (example: suction temperature average value difference average value 1302) but also the one or more differences such as the median or mode of the one or more differences (example: suction temperature average value difference) Any statistical value that can be calculated may be included.

  Further, the conditions (hereinafter, extraction conditions) when the sensor data difference reference value calculation unit 305 extracts repair information used for generating the sensor data difference reference value information are the failure content 903 and the correspondence information as in the above example. The combination of 906 is the same, the repair status 908 is “none”, and the evaluation 909 is not “◯”. For example, it may be added to the extraction conditions in the above example that the repair date and time 901 are close to each other, the model numbers 905 are the same. It should be noted that the repair date and time 901 are close to each other in a climate condition that the dates indicated by the repair date and time 901 indicate the same predetermined climate (eg, summer, winter, etc.) (eg, June to August, 10) The time indicated by the repair date and time 901 is included in the same time zone (for example, the time zone from 14:00 to 15:00).

  For example, it is assumed that the repair date 901 is a climatic condition close to each other and added to the extraction condition. In this case, even when the output value of one or more sensors 101 fluctuates greatly according to the climatic conditions, only the repair information generated when the climatic conditions are close to the repair date and time when the maintenance staff performs repair work is used. Then, sensor data difference reference value information corresponding to the climatic conditions is calculated. Accordingly, it is possible to specify the recommended repair correspondence information more accurately by using the sensor data difference reference value information corresponding to the climatic conditions close to the repair date and time.

  Further, it is assumed that the model numbers 905 are the same as each other in the extraction condition. In this case, even when the output values of one or more sensors 101 of the plurality of repair target devices 100 having different model numbers are greatly different, only the repair information including the same model number 905 as the repair target device 100 is used. Sensor data difference reference value information corresponding to the model number 905 is calculated. Accordingly, it is possible to specify the recommended repair correspondence information more accurately by using the sensor data difference reference value information corresponding to the model number 905 of the repair target device 100.

  Returning to FIG. The sensor data difference reference value information management unit 306 manages each sensor data difference reference value information generated by the sensor data difference reference value calculation unit 305. Specifically, the sensor data difference reference value information management unit 306 associates each information 1300 to 1306 included in each sensor data difference reference value information generated by the sensor data difference reference value calculation unit 305, respectively. It memorize | stores in reference value table T13 (FIG. 10).

  When the sensor data difference information transmitted from the information processing terminal 200 is received by the communication unit 301, the sensor data difference comparison unit 307 causes the received sensor data difference information and the sensor data difference reference value information management unit 306 to The managed sensor data difference reference value information including the same failure content 1300 as the failure content 501 (FIG. 3) included in the received sensor data difference information is compared. Then, the sensor data difference comparison unit 307 identifies the recommended repair correspondence information 1301 that is optimal for the received sensor data difference information based on the comparison result, and the communication unit 301 uses the identified recommended repair correspondence information 1301. To the information processing terminal 200.

  Hereinafter, a method in which the sensor data difference comparison unit 307 specifies the recommended repair correspondence information 1301 optimum for the sensor data difference information (FIG. 3) received by the communication unit 301 will be described. FIG. 11 is a diagram illustrating the operation of the sensor data difference comparison unit 307 according to the first embodiment of the present disclosure, and is a diagram illustrating the sensor data difference feature amount space in a two-dimensional plane.

  Here, the sensor data difference feature amount space refers to each of the one or more differences included in the sensor data difference information and each of the one or more differences included in the corresponding sensor data difference reference value information. A space having a reference value as a feature amount. In FIG. 11, for convenience of explanation, the suction temperature average value difference 502 and the discharge temperature average value difference 506 included in the sensor data difference information (FIG. 3) and the sensor data difference reference value information (FIG. 10) corresponding thereto are included. The two-dimensional space having the suction temperature average value difference average value 1302 and the discharge temperature average value difference average value 1306 as features is illustrated. However, in practice, when the sensor data difference information (FIG. 3) includes N differences, the sensor data difference feature amount space is N-dimensional.

  First, the sensor data difference comparison unit 307 includes a failure content included in the sensor data difference information (FIG. 3) in the sensor data difference reference value information (FIG. 10) managed by the sensor data difference reference value information management unit 306. Sensor data difference reference value information including failure content 1300 that is the same as 501 is acquired.

  Then, as shown in FIG. 11, the sensor data difference comparison unit 307 converts the recommended repair correspondence information 1301 included in the acquired sensor data difference reference value information into the sensor data difference reference in the sensor data difference feature amount space. Plotting is performed at positions corresponding to the suction temperature average value difference average value 1302 and the discharge temperature average value difference average value 1306 included in the value information.

  For example, it is assumed that the failure content 501 included in the sensor data difference information (FIG. 3) is “not cooled”. Further, it is assumed that the sensor data difference reference value information management unit 306 manages five pieces of sensor data difference reference value information shown in the first to fifth lines in FIG. In this case, the sensor data difference comparison unit 307 first shows the failure contents shown in the first to third lines in FIG. 10 among the sensor data difference reference value information managed by the sensor data difference reference value information management unit 306. Three sensor data difference reference value information 1300 is “not cooled” is acquired.

  Then, the sensor data difference comparison unit 307 includes both the suction temperature average value difference average value 1302 and the discharge temperature average value difference average value 1306 shown in the first row of FIG. 10 in the sensor data difference reference value information of “0”. The recommended repair correspondence information 1301 “no parts replacement” is plotted at the position of the x mark 1400 where the suction temperature average value difference and the discharge temperature average value difference are both “0”.

  In the same manner, the sensor data difference comparison unit 307 plots the recommended repair correspondence information 1301 “part A replacement” included in the sensor data difference reference value information shown in the second row of FIG. The recommended repair correspondence information 1301 “part B replacement” included in the sensor data difference reference value information shown in the third line of FIG. 10 is plotted at the position of the x mark 1402.

  Further, the sensor data difference comparison unit 307 converts the sensor data difference information received by the communication unit 301 into the suction temperature average value difference 502 and the discharge temperature average included in the sensor data difference information on the sensor data difference feature amount space. Plot at the position corresponding to the value difference 506. As a result, for example, it is assumed that the sensor data difference information is plotted at the position indicated by ◎ 1410 shown in FIG.

  Then, the sensor data difference comparison unit 307, in the sensor data difference feature amount space, the position of the ◎ mark 1410 where the sensor data difference information is plotted, and the x mark 1400 where the three recommended repair correspondence information 1301 are respectively plotted. The distance (distance value) between the positions 1401 and 1402 is calculated.

  For example, the sensor data difference comparison unit 307 squares the result of subtracting the suction temperature average value difference 502 indicating the position of the mark 1410 from the suction temperature average value difference average value 1302 indicating the position of the x mark 1400. Similarly, the sensor data difference comparison unit 307 squares the result of subtracting the discharge temperature average value difference 506 indicating the position of the mark 1410 from the discharge temperature average value difference average value 1306 indicating the position of the x mark 1400. The sensor data difference comparison unit 307 then raises the sum of the squared values of the two subtraction results to the ½ power, thereby obtaining the Euclidean in the sensor data difference feature amount space between the ◎ mark 1410 and the X mark 1400. Calculate the distance. Similarly, the sensor data difference comparison unit 307 calculates the distance between the ◎ mark 1410 and the X mark 1401 and the Euclidean distance between the ◎ mark 1410 and the X mark 1402 in the sensor data difference feature amount space. The sensor data difference comparison unit 307 may calculate the distance in the sensor data difference feature amount space by another method without being limited to the Euclidean distance in the sensor data difference feature amount space.

  Further, it is assumed that the scales of the values of the one or more differences included in the sensor data difference information are greatly different from each other. In this case, the sensor data difference comparison unit 307 normalizes a value of each of the one or more differences included in the sensor data difference information, and the one or more included in the sensor data difference reference value information corresponding thereto. A sensor data difference feature amount space whose feature amount is a value obtained by normalizing a reference value of each difference of the difference may be defined, and the distance in the defined sensor data difference feature amount space may be calculated. .

  Then, based on the calculated distance, the sensor data difference comparison unit 307 uses the recommended repair correspondence information 1301 plotted at the position closest to the position where the sensor data difference information is plotted on the sensor data difference feature amount space. The recommended repair correspondence information 1301 that is optimal for the data difference information is specified.

  For example, in the example illustrated in FIG. 11, the sensor data difference comparison unit 307 has the position of the X mark 1400 having the shortest distance from the position of the ◎ mark 1410 on which the sensor data difference information is plotted in the sensor data difference feature amount space. The recommended repair correspondence information 1301 “No parts replacement” plotted in FIG. 6 is specified as the recommended repair correspondence information 1301 corresponding to the sensor data difference information. In this case, the sensor data difference comparison unit 307 causes the communication unit 301 (FIG. 1) to transmit the specified recommended repair correspondence information 1301 “No parts replacement” to the information processing terminal 200. That is, in this case, as a result of checking the sensor data difference information received from the information processing terminal 200, the repair information management server 300 determines that no failure that requires parts replacement has occurred in the repair target device 100. Become.

  The functional configuration of the repair work support system 10 in the first embodiment has been described above. Next, operations of the information processing terminal 200 and the repair information management server 300 from when the maintenance staff starts repairing the repair target device 100 until the repair is completed in the repair work support system 10 will be described. FIG. 12 is a sequence diagram illustrating an operation flow of the information processing terminal 200 and the repair information management server 300 in the repair work support system 10 according to the first embodiment of the present disclosure.

  When the maintenance person connects the repair target device 100 and the information processing terminal 200 so that they can communicate with each other, as shown in FIG. The output value of the sensor 101 is acquired. Further, the sensor data acquisition unit 201 acquires normal operation sensor data corresponding to the second period managed by the normal operation sensor data management unit 102 of the repair target device 100 (step S1500). In step S1500, when the sensor data acquisition unit 201 starts acquiring the output values of one or more sensors 101, the display UI generation unit 204 generates the screen shown in FIG. 4 and the display unit 211 displays the screen. The

  After step S1500, after the failure content is input to the input field 602 of the screen shown in FIG. 4 by the maintenance staff and the button 611 is pressed, the sensor data difference calculation unit 202 of the information processing terminal 200 is acquired in step S1500. The sensor data difference information (FIG. 3) is generated using the output values of the one or more sensors 101 in the first period and the normal operation sensor data corresponding to the second period (step S1501). Then, the sensor data difference calculation unit 202 causes the communication unit 203 to transmit the sensor data difference information generated in step S1501 to the repair information management server 300 (step S1502).

  In the repair information management server 300, when the sensor data difference information is received by the communication unit 301, the sensor data difference comparison unit 307 manages the received sensor data difference information and the sensor data difference reference value information management unit 306. The sensor data difference reference value information (FIG. 10) including the same failure content 1300 as the failure content 501 included in the received sensor data difference information (FIG. 3) is compared. Then, based on the comparison result, the sensor data difference comparison unit 307 identifies recommended repair correspondence information 1301 (FIG. 10) that is optimal for the received sensor data difference information (step S1503). Then, the sensor data difference comparison unit 307 causes the communication unit 301 to transmit the recommended repair correspondence information 1301 specified in step S1503 to the information processing terminal 200 (step S1504).

  In the information processing terminal 200, when the recommended repair correspondence information 1301 is received by the communication unit 203, the display UI generation unit 204 generates a dialog 700 (FIG. 5) indicating the received recommended repair correspondence information 1301. The generated dialog 700 (FIG. 5) is displayed in a pop-up manner on the display unit 211 so as to overlap the screen shown in FIG. 4 (step S1505).

  As a result, the maintenance staff can confirm the content of the recommended repair response information 1301 displayed in step S1505, and can perform an optimal repair on the repair target device 100. After the repair of the repair target device 100 is completed, the maintenance staff inputs various information into the input fields 600 to 603 on the screen shown in FIG. 5 using the input unit 212 and presses the button 610.

  When the button 610 is pressed, the repair information generation unit 205 repairs using the sensor data difference information (FIG. 3) generated by the sensor data difference calculation unit 202 and the information input by the maintenance staff in the input fields 600 to 603. Information (FIG. 7) is generated. Then, the repair information generation unit 205 causes the communication unit 203 to transmit the generated repair information to the repair information management server 300 (step S1507). Thus, the operation of the information processing terminal 200 when the repair target device 100 is repaired is completed.

  In the repair information management server 300, when the repair information is received by the communication unit 301, the repair information history management unit 302 sets a repair ID 900 for uniquely identifying the repair information with respect to the received repair information. Newly assigned, the repair information is added to the repair information history table T9 (FIG. 7) and managed as a repair information history (step S1508).

  For each piece of repair information managed as a repair information history (FIG. 7) by the repair information history management unit 302, the repair information evaluation unit 303 repairs the repair cost information (FIG. 8) managed by the repair cost information management unit 304. ), It is evaluated whether or not the content of the repair correspondence indicated by the correspondence information 906 included in each repair information is appropriate from the viewpoint of cost (step S1509). As a result, for repair information for which the repair contents are evaluated as appropriate from the viewpoint of cost, the evaluation 909 is updated to “◯”, and the repair information is evaluated as inappropriate from the viewpoint of cost. The evaluation 909 is updated to “x”.

  Then, the sensor data difference reference value calculation unit 305 has a failure content 903, correspondence information 906, re-repair presence / absence 908, and evaluation 909 of each repair information managed as a repair information history (FIG. 7) by the repair information history management unit 302. And sensor data difference information 907, sensor data difference reference value information (FIG. 10) is generated (step S1510).

  Then, the sensor data difference reference value information management unit 306 manages the sensor data difference reference value information generated in step S1510 instead of the currently managed sensor data difference reference value information (step S1511). Thus, the operation of the repair information management server 300 when the repair target device 100 is repaired is completed.

  Note that steps S1509 to S1511 do not necessarily have to be executed every time repairs by maintenance personnel occur. Steps S1509 to S1511 may be executed every time the repair information managed as the repair information history by the repair information history management unit 302 exceeds a certain amount or every time a certain period elapses (periodically). Good.

  As described above, according to the repair work support system 10 of the first embodiment, repair information managed by the repair cost information management unit 304 for repair information including the contents of repairs actually performed by maintenance personnel. Based on the cost information (FIG. 8), evaluation information from the viewpoint of cost can be given. For this reason, it becomes possible to generate sensor data difference reference value information using only repair information evaluated as appropriate from the viewpoint of cost.

  As a result, even for maintenance personnel with low repair skills or inexperienced repair work, the output values of the one or more sensors 101 mounted on the repair target device 100 and the sensor data generated as described above. By referring to the recommended repair correspondence information 1301 specified using the difference reference value information, it is possible to perform an appropriate repair work from the viewpoint of cost.

(Embodiment 2)
In the first and second embodiments, the repair target device 100 (FIG. 1) and the information processing terminal 200 (FIG. 1) are connected so as to be directly communicable without going through the network 90 (FIG. 1). However, it is the structure which acquires the sensor value at the time of normal operation | movement corresponding to the output value of the 1 or more sensor 101 in a 1st period, and the 2nd period from the apparatus 100 for repair. For this reason, when performing maintenance work, maintenance personnel need to perform complicated settings for connecting the information processing terminal 200 and the repair target device 100 so that they can communicate directly. Concerned about not being able to. Further, when the storage capacity of the storage device included in the repair target device 100 is small, there is a possibility that a sufficient amount of sensor data during normal operation cannot be managed for generating sensor data difference information. Therefore, in the second embodiment, in consideration of the concern, the repair information management server manages the output values of one or more sensors 101 via the network 90.

  FIG. 13 is a diagram illustrating an example of a configuration of the repair work support system 10a according to the second embodiment of the present disclosure. Hereinafter, the same constituent elements as those of the first embodiment are denoted by the same reference numerals and description thereof will be omitted, and only parts different from those of the first embodiment will be described.

  As illustrated in FIG. 13, the repair work support system 10a (information providing system) according to the second embodiment includes a plurality of electronic devices (multiple devices) including a repair target device 1600 (first device, one device); An information processing terminal 1700 (information terminal) brought into a repair site by a maintenance staff and a repair information management server 1800 (computer) are provided. A plurality of electronic devices including the repair target device 1600 and the repair information management server 1800 are connected to each other via a network 90 in advance so that they can communicate with each other.

  Each of the plurality of electronic devices including the repair target device 1600 includes one or more sensors 101 (first sensor, sensor), a communication unit 1602, and a sensor data generation unit 1601. Hereinafter, only the configuration of the repair target device 1600 will be described on behalf of the plurality of electronic devices. Communication unit 1602 has the same configuration as communication unit 301 (FIG. 1) in the first embodiment.

  The sensor data generation unit 1601 is configured by a control program stored in a ROM or the like of a microcomputer included in the repair target device 1600 being executed by the CPU of the microcomputer. The sensor data generation unit 1601 periodically acquires output values of one or more sensors 101, and generates sensor data (first, second, fourth, and fifth sensing data) including the acquired output values. The generated sensor data is transmitted to the repair information management server 1800 via the communication unit 1602.

  FIG. 14 is a diagram illustrating an example of sensor data according to the second embodiment of the present disclosure. As shown in FIG. 14, the sensor data includes a time stamp 1900, a device ID 1901, a model number 1902, a suction temperature 1903, a discharge temperature 1904, an indoor piping temperature 1905, and the like. The time stamp 1900 is the date and time when the sensor data is generated. The device ID 1901 is information for uniquely identifying the repair target device 1600. The model number 1902 is the model number of the repair target device 1600. The device ID 1901 and the model number 1902 are stored in advance in a ROM or the like of a microcomputer provided in the repair target device 1600. The suction temperature 1903 is an output value of a suction temperature sensor of the air conditioner indoor unit. The discharge temperature 1904 is an output value of the discharge temperature sensor of the air conditioner indoor unit. The indoor piping temperature 1905 is an output value of the piping temperature sensor of the air conditioner indoor unit.

  The sensor data is not limited to the output values 1903 to 1905 described above, and may include the output value of an arbitrary sensor 101 mounted on the repair target device 1600 such as the rotation speed of an indoor fan of an air conditioner.

  Similar to the information processing terminal 200 (FIG. 1), the information processing terminal 1700 is configured by an information processing apparatus including a microcomputer, such as a tablet terminal or a notebook computer. The information processing terminal 1700 includes a communication unit 203, a display UI generation unit 1701, and a UI unit 210.

  Similar to the display UI generation unit 204 (FIG. 1), the display UI generation unit 1701 is executed by a control program stored in the ROM or the like of the microcomputer included in the information processing terminal 1700 being executed by the CPU of the microcomputer. Composed. The display UI generation unit 1701 receives sensor data acquired from a sensor data storage unit 1801 of a repair information management server 1800, which will be described later, and recommended repair correspondence information 1301 acquired from a sensor data difference comparison unit 1804 via the communication unit 203. A screen including (FIG. 10) and the like is generated, and the generated screen is displayed on the display unit 211.

  15 and 16 are diagrams illustrating an example of a screen display of the information processing terminal 1700 according to the second embodiment of the present disclosure. Specifically, FIG. 15 shows a display UI when the information processing terminal 1700 is communicably connected to the repair target device 1600 and the repair information management server 1800 and repair of the repair target device 1600 is started. An example of display contents of a screen generated by the generation unit 1701 and displayed by the display unit 211 is shown. FIG. 16 shows an example of the display content of the screen displayed when a button 2003 (described later) included in the screen of FIG. 15 is pressed by the maintenance staff.

  As shown in FIG. 15, the button 2000 is a button for instructing the information input to the input fields 600 to 603 to be transmitted to the repair information management server 1800. The button 2001 receives sensor data at the time of the latest operation of the repair target device 1600 from the sensor data storage unit 1801 of the repair information management server 1800, which will be described later, and the received sensor data in an area of graphs 2010-2012, which will be described later. It is a button for instructing to display the contents of. A button 2002 receives sensor data during operation at a specified date and time of the repair target device 1600 from a sensor data storage unit 1801 of a repair information management server 1800, which will be described later, and receives the received sensor in an area of graphs 2010-2012 to be described later. This is a button for instructing to display the contents of data.

  As described above, in the second embodiment, in the screen generated by the display UI generation unit 1701, in addition to the sensor data at the time of the latest operation of the repair target device 1600, in the sensor data storage unit 1801 of the repair information management server 1800. It is possible to refer to the accumulated sensor data at the time of arbitrary operation of the repair target device 1600.

  The button 2003 generates sensor data difference information (FIG. 3) based on the sensor data in the first period and the second period of the repair target device 1600 and recommended repair correspondence information 1301 (optimum for the generated sensor data difference information). 10 is transmitted to the repair information management server 1800 by the communication unit 203, and the recommended repair correspondence information 1301 (FIG. 10) received by the communication unit 203 from the repair information management server 1800 is then transmitted. A button for instructing display.

  The instruction information includes information indicating the first period and the second period, and the device ID of the repair target device 1600. Information indicating the first period and the second period is stored in advance in a ROM or the like included in the microcomputer of the information processing terminal 1700. In addition, when the maintenance engineer presses the button 2003, the microcomputer, like the repair information generation unit 205 of the first embodiment, receives from the repair information management server 1800 the input field 600 and the input field 601 in the repair request information. The device ID associated with the repair date and time and the maintenance staff ID respectively input to the service information is acquired and included in the instruction information as the device ID of the repair target device 1600. However, the method for acquiring the device ID of the repair target device 1600 is not limited to this. For example, the maintenance staff stores in advance in the storage device or the like of the repair target device 1600 by using a screen different from FIGS. 15 and 16. You may make it do.

  Graphs 2010 to 2012 are graphs that display the output values of one or more sensors 101 of the repair target device 1600 included in the sensor data received from the sensor data storage unit 1801 of the repair information management server 1800 in time series. is there.

  The contents displayed on the graphs 2010 to 2012 vary depending on which of the buttons 2001 and 2002 is used to receive the sensor data from the sensor data storage unit 1801. Although three graphs are displayed in FIG. 15, the number of displayed graphs is not limited to three. Further, the output values of one or more sensors 101 may be displayed in time series, for example, in a table format instead of the graphs 2010 to 2012.

  When the maintenance engineer presses the button 2003, the screen shown in FIG. 16 is generated by the display UI generation unit 1701, and the screen is displayed by the display unit 211. As illustrated in FIG. 16, the screen includes input fields 600 to 603, buttons 2000 to 2003, graphs 2010 to 2012, and a dialog 2100. The input fields 600 to 603, buttons 2000 to 1803, and graphs 2010 to 2012 in FIG. 16 are the same as the input fields 600 to 603, buttons 2000 to 2003, and graphs 2010 to 2012 in FIG. The dialog 2100 is the same as the dialog 700 in FIG. 5 of the first embodiment.

  Returning to FIG. Similar to the repair information management server 300 of the first embodiment, the repair information management server 1800 is a display device such as an organic EL panel or LCD, an input device such as a keyboard and a mouse or a touch panel device, and a predetermined storage capacity such as an HDD or SSD. And one or more server devices including a microcomputer and the like.

  The repair information management server 1800 includes a communication unit 301, a repair information evaluation unit 303, a repair cost information management unit 304, a sensor data difference reference value calculation unit 305, a sensor data difference reference value information management unit 306, a sensor data storage unit 1801, and a normal An operating sensor data management unit 1802, a sensor data difference calculation unit 1803, a sensor data difference comparison unit 1804, a repair information generation unit 1805, and a repair information history management unit 1806 are provided.

  The sensor data storage unit 1801, the normal operation sensor data management unit 1802, the sensor data difference calculation unit 1803, the sensor data difference comparison unit 1804, the repair information generation unit 1805, and the repair information history management unit 1806 are provided by the repair information management server 1800. A control program stored in a ROM or the like of the provided microcomputer is executed by the CPU of the microcomputer.

  The sensor data storage unit 1801 stores the received sensor data each time the communication unit 301 receives sensor data transmitted from the repair target device 1600 via the communication unit 1602.

  FIG. 17 is a diagram illustrating an example of sensor data stored in the sensor data storage unit 1801 according to the second embodiment of the present disclosure. Specifically, the sensor data storage unit 1801 stores each sensor data received from the repair target device 1600 using the sensor data storage table T22 shown in FIG. The sensor data accumulation table T22 includes a predetermined storage area of a storage device provided in the repair information management server 1800.

  Each sensor data includes a sensor data ID 2200, a time stamp 2201, a device ID 2202, a model number 2203, a suction temperature 2204, a discharge temperature 2205, and an indoor piping temperature 2206. Among them, the time stamp 2201, the device ID 2202, the model number 2203, the suction temperature 2204, the discharge temperature 2205, and the indoor piping temperature 2206 are respectively shown in FIG. The information is the same as the temperature 1904 and the indoor piping temperature 1905. The sensor data storage unit 1801 associates each piece of information 2200 to 2206 included in each sensor data and stores it in the sensor data storage table T22.

  The sensor data ID 2200 is information given by the sensor data storage unit 1801 in order to uniquely identify each sensor data stored in the sensor data storage unit 1801.

  The sensor data is not limited to the above 2204 to 2206, and may include the output value of an arbitrary sensor 101 mounted on the repair target device 1600, such as the rotation speed of an indoor fan of an air conditioner.

  The normal operation sensor data management unit 1802 manages the sensor data stored in the sensor data storage unit 1801 when the repair target device 1600 is operating normally.

  Specifically, the sensor data management unit 1802 during normal operation includes a time stamp included in the sensor data (FIG. 17) for each device ID 2202 included in the sensor data (FIG. 17) stored in the sensor data storage unit 1801. 2201, output values 2204 to 2206 of one or more sensors 101 are acquired, and data including the acquired information 2201 and 2204 to 2206 is generated as normal operation sensor data of the repair target device 1600 specified by the device ID 2202. To do.

  Then, the normal operation sensor data management unit 1802 generates the normal operation sensor data generated for each device ID 2202 in the same manner as the normal operation sensor data management unit 102 of the first embodiment, as shown in FIG. Management is performed using the normal data table T4 shown.

  When the instruction information transmitted by pressing a button 2003 (FIG. 15) by a maintenance staff is received by the communication unit 301, the sensor data difference calculation unit 1803 stores sensor data (FIG. 14), the sensor ID (first sensing data, fourth sensing) including the time stamp 1900 corresponding to the first period indicated by the instruction information in which the device ID indicated by the instruction information matches the device ID 1901. Data). The sensor data difference calculation unit 1803 uses one or more first statistical values (one or more in the first period) using the acquired sensor data in the same manner as the sensor data difference calculation unit 202 of the first embodiment. Statistical value) is calculated.

  In addition, the sensor data difference calculation unit 1803 is managed by the normal operation sensor data management unit 1802, and the second period of the normal operation sensor data (FIG. 2) corresponding to the device ID indicated by the instruction information. The normal operation sensor data (second sensing data, fifth sensing data) including the time stamp 400 corresponding to is acquired. The sensor data difference calculation unit 1803 uses one or more second statistical values (in the second period) using the acquired normal operation sensor data in the same manner as the sensor data difference calculation unit 202 of the first embodiment. One or more statistics).

  Then, the sensor data difference calculation unit 1803, like the sensor data difference calculation unit 202 of the first embodiment, each of the one or more first statistical values and each of the one or more second statistical values. One or more differences are calculated, and sensor data difference information (third sensing data, sixth sensing data) including the calculated one or more differences is generated.

  The sensor data difference comparison unit 1804 generates sensor data difference information by the sensor data difference calculation unit 1803 after the instruction information transmitted by pressing a button 2003 (FIG. 15) by a maintenance staff is received by the communication unit 301. Then, similarly to the sensor data difference comparison unit 307 of the first embodiment, the sensor data difference information (FIG. 3) generated by the sensor data difference calculation unit 1803 and the sensor managed by the sensor data difference reference value information management unit 306. The data difference reference value information (FIG. 10) is compared. Then, the sensor data difference comparison unit 1804, like the sensor data difference comparison unit 307 of the first embodiment, based on the comparison result, recommended repair correspondence information 1301 (optimum for the generated sensor data difference information ( Identify recommended information). Then, the sensor data difference comparison unit 1804 causes the communication unit 301 to transmit the specified recommended repair correspondence information 1301 to the information processing terminal 1700.

  The repair information generation unit 1805 receives, by the communication unit 301, information input in the input fields 600 to 603 (FIG. 16) transmitted from the information processing terminal 1700 when the maintenance engineer presses the button 2000 (FIG. 16). Then, like the repair information generation unit 205 of the first embodiment, the repair information (FIG. 6) is obtained based on the received information and the sensor data difference information generated by the sensor data difference calculation unit 1803. Generate.

  The repair information history management unit 1806 repairs the repair information generated by the repair information generation unit 1805 using the repair information history table T9 (FIG. 7) in the same manner as the repair information history management unit 302 of the first embodiment. Manage as information history.

  The functional configuration of the repair work support system 10a in the second embodiment has been described above. Next, operations of the information processing terminal 1700 and the repair information management server 1800 from when the maintenance staff starts repairing the repair target device 1600 to when the repair is completed in the repair work support system 10a will be described. FIG. 18 is a sequence diagram illustrating an operation flow of the information processing terminal 1700 and the repair information management server 1800 in the repair work support system 10a according to the second embodiment of the present disclosure.

  When the maintenance staff starts the repair of the repair target device 1600 by connecting the information processing terminal 1700 to the repair target device 1600 and the repair information management server 1800 in a communicable manner, the display UI generation unit 1701 of the information processing terminal 1700 The screen shown in FIG. 15 is generated, and the screen is displayed on the display unit 211.

  When the maintenance person presses the button 2003 on the screen shown in FIG. 15 displayed on the display unit 211 of the repair target device 1600, the microcomputer of the information processing terminal 1700 displays the instruction information as shown in FIG. Is transmitted to the repair information management server 1800 by the communication unit 203 (step S2300).

  When the sensor data difference calculation unit 1803 of the repair information management server 1800 receives the instruction information from the information processing terminal 1700 via the communication unit 301, as described above, the device of the repair target device 1600 indicated by the received instruction information. Using the ID, the first period, and the second period, sensor data difference information (FIG. 3) is generated (step S2301).

  Next, the sensor data difference comparison unit 1804 and the sensor data difference reference value information (FIG. 10) managed by the sensor data difference reference value information management unit 306 and the sensor data difference information generated in step S2301 (FIG. 3). And the recommended repair correspondence information 1301 (FIG. 10) optimal for the generated sensor data difference information is specified based on the comparison result (step S2302). Then, the sensor data difference comparison unit 1804 causes the communication unit 301 to transmit the specified recommended repair correspondence information 1301 (FIG. 10) to the information processing terminal 1700 (step S2303).

  In the information processing terminal 1700, when the recommended repair correspondence information 1301 (FIG. 10) is received by the communication unit 203, the display UI generation unit 1701 displays a dialog 2100 (not shown) indicating the received recommended repair correspondence information 1301 (FIG. 10). FIG. 16) is generated. Then, the display UI generating unit 1701 causes the generated dialog 2100 (FIG. 16) to be pop-up displayed on the display unit 211 so as to overlap the screen shown in FIG. 15 (step S2304).

  As a result, the maintenance staff can confirm the content of the recommended repair response information 1301 displayed in step S2304, and can perform an optimal repair on the repair target device 1600. After the repair of the repair target device 1600 is completed, the maintenance staff inputs various information in the input fields 600 to 603 on the screen shown in FIG.

  When the button 2000 is pressed, the microcomputer of the information processing terminal 1700 causes the communication unit 203 to transmit the information input in the input fields 600 to 603 to the repair information management server 1800 (step S2305). Thus, the operation of the information processing terminal 1700 when the repair target device 1600 is repaired is completed.

  In the repair information management server 1800, when the information input to the input fields 600 to 603 by the communication unit 301 is received, the repair information generation unit 1805 generates the received information and the sensor data difference calculation unit 1803. Repair information (FIG. 6) is generated based on the sensor data difference information (step S2306).

  Next, the repair information history management unit 1806 newly assigns a repair ID 900 for uniquely identifying the repair information to the repair information generated in step S2306, and stores the repair information in the repair information history table T9. In addition to (FIG. 7), it is managed as a repair information history (step S2307).

  Subsequent steps S2308 to S2310 are the same as steps S1509 to S1511 (FIG. 12) of the first embodiment.

  As described above, according to the repair work support system 10a of the second embodiment, the repair target device 1600 is connected to the repair information management server 1800 via the network 90 so as to be communicable. Then, after starting the operation of the repair target device 1600, sensor data acquired during the operation is periodically transmitted to the repair information management server 1800. The sensor data is accumulated in the sensor data accumulation table T22 (FIG. 17) by the sensor data accumulation unit 1801.

  Therefore, when the maintenance staff performs the repair work, it is not necessary to perform complicated settings for directly connecting the information processing terminal 1700 and the repair target device 1600, and the maintenance staff can quickly perform the repair work. As a result, it is possible to reduce the work time cost of repair work. In addition, the maintenance staff can refer to the sensor data acquired at any time in the repair target device 1600 stored in the sensor data storage table T22 (FIG. 17) as necessary. For this reason, the maintenance staff can check the details of the failure of the repair target device 1600 in more detail.

  Since this disclosure notifies the maintenance personnel who perform the repair work of equipment based on the sensor data acquired from the equipment, the recommended repair response information is notified. This is useful in systems that support

10, 10a Repair work support system (information provision system)
90 Network 100 Repair target device (first device, one device)
101 sensor (first sensor, sensor)
200 Information processing terminal (information terminal)
300 Repair information management server (computer)
T9 repair information history table (first database)
900 Repair ID
901 Repair date and time 903 Failure details (first information)
904 Device ID
905 Model No. 906 Correspondence information (second information)
907 Sensor data difference information (sixth sensing data)
908 Re-repair (third information)
909 Evaluation (4th information)
T13 reference value table (second database)
1300 Details of failure (first information)
1301 Recommended repair information (second information)
1302 Suction temperature average difference average value (statistical value)
1303 Suction temperature standard deviation difference average (statistical value)
1304 Suction temperature maximum value difference average value (statistical value)
1305 Suction temperature minimum value difference average value (statistical value)
1306 Discharge temperature average difference average value (statistical value)
1600 Repair target equipment (first equipment, one equipment)
1700 Information processing terminal (information terminal)
1800 Repair information management server (computer)
T10 Cost management table (third database)

Claims (10)

An information providing method in an information providing system,
The third sensing data indicating the difference between the first sensing data acquired by the first sensor provided in the first device of the plurality of devices connected to the network and the second sensing data acquired by the first sensor, Acquired from a first device, the first sensing data is acquired in a first period on a repair date of the first device, the second sensing data is acquired in a second period before the repair date, and the first The sensor acquires the physical quantity of the first device,
Based on the second database generated based on the first database and the third sensing data, the symptom of the first device is resolved in the information terminal corresponding to the first serviceman repairing the first device. Display recommended information that shows the recommended action for
The first database is generated by acquiring repair information for the one device generated each time one device of the plurality of devices is repaired, and storing the acquired repair information.
The repair information includes sixth sensing data indicating a difference between fourth sensing data acquired by a sensor provided in the one device and fifth sensing data acquired by the sensor, first information, 2 information, 3rd information, and 4th information are produced | generated, the said 4th sensing data is acquired in the 3rd period on the repair date of the said 1 apparatus, and the said 5th sensing data is the said repair. Acquired in a fourth period before the day, the sensor acquires the physical quantity of the one device, the first information indicates a symptom of the one device before the one device is repaired, The second information indicates a countermeasure applied to the one device, the third information indicates whether the one device has been repaired after the repair date, and the fourth information is Indicated in the second information It indicates whether or not the countermeasure is good, and after grouping the sixth sensing data included in each repair information included in the first database according to the value of the sixth sensing data, If it is determined that the cost for the countermeasure indicated by the second information corresponding to each of the grouped sixth sensing data is based on the database, the countermeasure indicated by the second information is good. In other cases, it indicates that the countermeasure indicated in the second information is not good, and the third database includes a countermeasure for solving symptoms of the plurality of devices and a cost for the countermeasure. Mapping,
The second database includes a plurality of reference information,
In each of the plurality of pieces of reference information, the combination of the symptom indicated by the first information and the countermeasure indicated by the second information is the same in the first database, and the re-repair is performed by the third information. One or more pieces of repair information that are indicated to be not good and are determined to be good by the fourth information, and are included in the extracted one or more pieces of the repair information. The statistical value of the sixth sensing data is calculated and generated by associating the first information and the second information included in the one or more repair information with the calculated statistical value,
The recommended information corresponds to the shortest distance value extracted by calculating each distance value between the third sensing data and each statistical value included in the second database and comparing the distance values. The second information;
Information provision method. The first device is an air conditioner;
The physical quantity includes one or more of a suction temperature, a discharge temperature, and an indoor piping temperature.
The information providing method according to claim 1. The statistical value is an average value.
The information providing method according to claim 1 or 2. The statistical value is a median value,
The information providing method according to claim 1 or 2. The statistical value is a mode value.
The information providing method according to claim 1 or 2. The repair information includes a repair date and time of the one device acquired through an information terminal corresponding to the one serviceman,
In the case of generating each of the plurality of reference information, the condition for extracting the one or more repair information further includes that the repair date and time is a climatic condition close to each other,
The information providing method according to any one of claims 1 to 5. The repair information includes a model number of the one device obtained through an information terminal corresponding to the one serviceman,
In the case of generating each of the plurality of reference information, the condition for extracting the one or more repair information includes that the model numbers are the same as each other.
The information providing method according to any one of claims 1 to 6. The first sensor acquires a plurality of types of physical quantities of the first device,
The sensor acquires a plurality of types of physical quantities of the one device,
Each distance value is calculated after normalizing each statistical value included in the third sensing data and the second database.
The information providing method according to any one of claims 1 to 7. An information providing method in an information providing system,
First sensing data is obtained from a first sensor provided in a first device of a plurality of devices connected to a network, the first sensing data is obtained in a first period on a repair date of the first device, One sensor acquires the physical quantity of the first device,
Obtaining second sensing data from the first sensor, wherein the second sensing data is obtained in a second period prior to the repair date;
Calculating third sensing data indicating a difference between the first sensing data and the second sensing data;
Based on the second database generated based on the first database and the third sensing data, the symptom of the first device is resolved in the information terminal corresponding to the first serviceman repairing the first device. Display recommended information that shows the recommended action for
The first database is generated by acquiring repair information for the one device generated each time one device of the plurality of devices is repaired, and storing the acquired repair information.
The repair information includes sixth sensing data indicating a difference between fourth sensing data acquired by a sensor provided in the one device and fifth sensing data acquired by the sensor, first information, 2 information, 3rd information, and 4th information are produced | generated, the said 4th sensing data is acquired in the 3rd period on the repair date of the said 1 apparatus, and the said 5th sensing data is the said repair. Acquired in a fourth period before the day, the sensor acquires the physical quantity of the one device, the first information indicates a symptom of the one device before the one device is repaired, The second information indicates a countermeasure applied to the one device, the third information indicates whether the one device has been repaired after the repair date, and the fourth information is Indicated in the second information It indicates whether or not the countermeasure is good, and after grouping the sixth sensing data included in each repair information included in the first database according to the value of the sixth sensing data, If it is determined that the cost for the countermeasure indicated by the second information corresponding to each of the grouped sixth sensing data is based on the database, the countermeasure indicated by the second information is good. In other cases, it indicates that the countermeasure indicated in the second information is not good, and the third database includes a countermeasure for solving symptoms of the plurality of devices and a cost for the countermeasure. Mapping,
The second database includes a plurality of reference information,
In each of the plurality of pieces of reference information, the combination of the symptom indicated by the first information and the countermeasure indicated by the second information is the same in the first database, and the re-repair is performed by the third information. One or more pieces of repair information that are indicated to be not good and are determined to be good by the fourth information, and are included in the extracted one or more pieces of the repair information. The statistical value of the sixth sensing data is calculated and generated by associating the first information and the second information included in the one or more repair information with the calculated statistical value,
The recommended information corresponds to the shortest distance value extracted by calculating each distance value between the third sensing data and each statistical value included in the second database and comparing the distance values. The second information;
Information provision method.   The information provision program which makes a computer perform the information provision method as described in any one of Claim 1 to 9.

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