JP2019008438A - 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, of sixth sensing data acquired from a plurality of apparatuses in the same manner, 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 good treatment is carried out by a second service person; and displaying, as recommendation information, 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 10

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 a result of a second serviceman determining whether the countermeasure indicated in the second information is good based on the first information and the second information, and the first information, The second information and the third information are obtained via an information terminal corresponding to one serviceman who repaired the one device, and the second database includes a plurality of reference information, and each of the plurality of reference information In the information, the combination of the symptom indicated by the first information in the first database and the countermeasure indicated by the second information is the same, and the re-repair is not performed by the third information. Shown and 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 one or more extracted repair information Is calculated by associating the first information and the second information included in the one or more repair information with the calculated statistical value, and the recommended information is the third sensing data and the It is said 2nd information corresponding to the shortest distance value extracted by calculating each distance value with each said statistics value contained in a 2nd database, and comparing each said 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 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 explaining operation | movement of the repair information evaluation part in Embodiment 2 of this indication. It is a figure which shows an example of a structure of the repair work assistance system in Embodiment 3 of this indication. It is a figure which shows an example of the sensor data in Embodiment 3 of this indication. It is a figure which shows an example of the screen display of the information processing terminal in Embodiment 3 of this indication. It is a figure which shows an example of the screen display of the information processing terminal in Embodiment 3 of this indication. It is a figure which shows an example of the sensor data which the sensor data storage part in Embodiment 3 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 3 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 a result of the second serviceman determining whether or not the countermeasure indicated in the second information is good based on the first information and the second information. The first information, the second information, and the third information are obtained through an information terminal corresponding to one serviceman who repaired the one device, and the second database includes a plurality of pieces of reference information. Each of the plurality of pieces of reference information includes a combination of the symptoms indicated by the first information and the countermeasure indicated by the second information in the first database, wherein the combination of the measures indicated by the second information is the same. Not repaired And one or more of the repair information shown to be determined to be good by the fourth information, and one or more of the one or more of the repair information included in the extracted one or more of the repair information A statistical value of 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 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. is there.

  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. Similarly, among the sixth sensing data acquired from a plurality of devices, the same symptom as the first device and the same measures as the measures taken for the first device are shown, and it indicates that the repair has not been performed. The third sensing data is compared with each statistical value of one or more sixth sensing data included in one or more repair information determined that a good countermeasure has been taken by the second service person. 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 if it is a 1st serviceman with a low repair skill or a short repair work experience, the 2nd service person with a high repair skill or abundant repair work experience, for example, shows the countermeasure judged to be good in terms of cost By referring to the recommended information, it is possible to carry out appropriate repair work in terms of cost.

  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 service person who repairs the air conditioner can reduce 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. Therefore, it is possible to refer to the recommended information indicating the countermeasures determined to be good, and to perform repair work of the air conditioner appropriate 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. Whether or not the device has been re-repaired after the repair date, and whether the fourth information is based on the first information and the second information and the countermeasure indicated in the second information is good The first information, the second information, and the third information are obtained via an information terminal corresponding to one serviceman who has repaired the one device. The second database includes a plurality of reference information, and each of the plurality of reference information includes a combination of the symptom indicated by the first information and the countermeasure indicated by the second information in the first database. The third information is the same. One or more of the repair information indicated that the repair is not performed by the report and that the fourth information indicates that the repair is good is extracted, and the one or more of the extracted one or more A statistical value of one or more of the sixth sensing data included in repair information 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 distance 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 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. Similarly, among the sixth sensing data obtained from a plurality of devices, the same symptom as the first device and the same measures as the measures taken for the first device are shown, and it indicates that the repair has not been performed. The third sensing data is compared with each statistical value of one or more sixth sensing data included in one or more repair information determined that a good countermeasure has been taken by the second service person. 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 if the repair service skill is low or the repair service experience is low, for example, the repair service skill is high or repair service experience is abundant. The recommended information can be referred to quickly, and appropriate repair work can be quickly performed in terms of cost.

  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 306 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 display contents of a screen including recommended repair correspondence information acquired from the sensor data difference comparison unit 306.

  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 sensor data difference reference value calculation unit 304, a sensor data difference reference value information management unit 305, and a sensor data difference comparison unit 306. I have.

  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 sensor data difference reference value calculation unit 304, the sensor data difference reference value information management unit 305, and the sensor data difference comparison unit 306 are included in the microcomputer of the repair information management server 300. A control program stored in a ROM or the like is configured by being executed by a CPU provided 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 is information indicating a result of the maintenance staff evaluating whether or not the contents of the 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). 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. In the repair information evaluation unit 303, for each piece of repair information managed as a repair information history by the repair information history management unit 302, the content of repair correspondence indicated by the correspondence information 906 included in each piece of repair information is a cost viewpoint. The maintenance staff (second serviceman) with a high repair skill and abundant repair work experience is evaluated (determined) as to whether or not it is appropriate. Then, the repair information evaluation unit 303 causes the maintenance staff to edit the evaluation result (determination result) as the evaluation 909 of each repair information.

  Specifically, the evaluation is carried out by maintenance personnel who have high repair skills and abundant repair work experience. The repair information evaluation unit 303 causes each repair information managed by the repair information history management unit 302 to be displayed in an editable manner on a display device included in the repair information management server 300. The maintenance staff confirms the failure content 903, the model number 905, the sensor data difference information 907, and the correspondence information 906 included in the displayed repair information, and in the repair indicated by the repair information, extra parts replacement, etc. To make sure that no repairs are incurred. The maintenance staff then updates the evaluation 909 included in the repair information determined to have been repaired at an extra cost to “x” using the input device provided in the repair information management server 300. In addition, the maintenance staff updates the evaluation 909 included in the repair information determined to have been appropriately repaired to “O” using the input device without causing unnecessary costs.

  The sensor data difference reference value calculation unit 304 includes 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 304 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. 8 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 later-described sensor data difference reference value information management unit 305 using a reference value table T10 (second database) shown in FIG. The reference value table T10 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 1000 (first information) and recommended repair response information 1001 (second information). The failure content 1000 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 1001 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 304 as the reference value (statistical value) of the sensor data difference information (FIG. 3) corresponding to the failure content 1000 and the recommended repair correspondence information 1001. The suction temperature average value difference average value 1002, the suction temperature standard deviation difference average value 1003, the suction temperature maximum value difference average value 1004, the suction temperature minimum value difference average value 1005, the discharge temperature average value difference average value 1006, and the like are included. It is.

  Hereinafter, the sensor data difference reference value information in which the failure content 1000 by the sensor data difference reference value calculation unit 304 is “not cooled” and the recommended repair correspondence information 1001 is “component 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 304 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 304 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 304 sets 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 1000 and the recommended repair correspondence information 1001. The sensor data difference reference value information is generated. The sensor data difference reference value calculation unit 304 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 1002, the suction temperature standard deviation difference average value 1003, the suction temperature maximum value difference average value 1004, the suction temperature minimum value difference average value 1005 and the discharge temperature of the generated sensor data difference reference value information. The average difference average value 1006 (FIG. 8) is used.

  As described above, the sensor data difference reference value calculation unit 304 is considered that the content of the repair related to the repair information in which the re-repair presence / absence 908 is “present” is insufficient, so 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 304 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 304 does not use repair information with an evaluation 909 of “−” to generate sensor data difference reference value information.

  Similarly to the above example, the sensor data difference reference value calculation unit 304 has sensor data difference reference value information in which the failure content 1000 is “not cooled” and the recommended repair correspondence information 1001 is not “part A replacement”. The sensor data difference reference value information in which the failure content 1000 is not “not cooled” and the recommended repair response information 1001 is “part A replacement” is generated.

  As described above, the sensor data difference reference value calculation unit 304 includes a failure content (for example, “not cooled”) indicated by the failure content 903 and a 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 304 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 304 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. 8) is generated.

  The sensor data difference reference value information includes at least one difference (eg, suction temperature average value difference) included in the sensor data difference information 907 (FIG. 7) as shown in 1002 to 1006 (FIG. 8). Not only the average value (example: suction temperature average value difference average value 1002) 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 304 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 305 manages each sensor data difference reference value information generated by the sensor data difference reference value calculation unit 304. Specifically, the sensor data difference reference value information management unit 305 associates each information 1000 to 1006 included in each sensor data difference reference value information generated by the sensor data difference reference value calculation unit 304, It memorize | stores in reference value table T10 (FIG. 8).

  When the sensor data difference information transmitted by the information processing terminal 200 is received by the communication unit 301, the sensor data difference comparison unit 306 causes the received sensor data difference information and the sensor data difference reference value information management unit 305 to The managed sensor data difference reference value information including the same failure content 1000 as the failure content 501 (FIG. 3) included in the received sensor data difference information is compared. Then, the sensor data difference comparison unit 306 identifies the recommended repair correspondence information 1001 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 1001. To the information processing terminal 200.

  Hereinafter, a method in which the sensor data difference comparison unit 306 specifies the recommended repair correspondence information 1001 optimal for the sensor data difference information (FIG. 3) received by the communication unit 301 will be described. FIG. 9 is a diagram illustrating the operation of the sensor data difference comparison unit 306 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 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. 9, 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. 8) corresponding thereto are included. The two-dimensional space having the featured values of the suction temperature average value difference average value 1002 and the discharge temperature average value difference average value 1006 is shown. 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 306 includes a failure content included in the sensor data difference information (FIG. 3) in the sensor data difference reference value information (FIG. 8) managed by the sensor data difference reference value information management unit 305. Sensor data difference reference value information including failure content 1000 that is the same as 501 is acquired.

  Then, as shown in FIG. 9, the sensor data difference comparison unit 306 converts the recommended repair correspondence information 1001 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 1002 and the discharge temperature average value difference average value 1006 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 305 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 306 first shows the failure contents shown in the first to third lines in FIG. 8 among the sensor data difference reference value information managed by the sensor data difference reference value information management unit 305. Three pieces of sensor data difference reference value information in which 1000 is “not cooled” is acquired.

  The sensor data difference comparison unit 306 includes the suction data average value difference average value 1002 and the discharge temperature average value difference average value 1006 shown in the first row of FIG. The recommended repair correspondence information 1001 “no part replacement” is plotted at the position of the x mark 1100 where the suction temperature average value difference and the discharge temperature average value difference are both “0”.

  Similarly, the sensor data difference comparison unit 306 plots the recommended repair correspondence information 1001 “part A replacement” included in the sensor data difference reference value information shown in the second row of FIG. 8, the recommended repair correspondence information 1001 “part B replacement” included in the sensor data difference reference value information shown in the third line of FIG. 8 is plotted at the position of the x mark 1102.

  Further, the sensor data difference comparison unit 306 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 feature space in the sensor data difference feature amount space. Plot at the position corresponding to the value difference 506. Accordingly, for example, it is assumed that the sensor data difference information is plotted at the position indicated by the ◎ mark 1110 shown in FIG.

  Then, the sensor data difference comparison unit 306, in the sensor data difference feature amount space, the position of the ◎ mark 1110 where the sensor data difference information is plotted, and the x mark 1100 where the three recommended repair correspondence information 1001 are respectively plotted. The distance (distance value) between the positions 1101 and 1102 is calculated.

  For example, the sensor data difference comparison unit 306 squares the result of subtracting the suction temperature average value difference 502 indicating the position of the mark 1110 from the suction temperature average value difference average value 1002 indicating the position of the x mark 1100. Similarly, the sensor data difference comparison unit 306 squares the result of subtracting the discharge temperature average value difference 506 indicating the position of ◎ 1110 from the discharge temperature average value difference average value 1006 indicating the position of the x mark 1100. Then, the sensor data difference comparison unit 306 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 1110 and the X mark 1100. Calculate the distance. Similarly, the sensor data difference comparison unit 306 calculates the distance between the ◎ mark 1110 and the X mark 1101 and the Euclidean distance between the ◎ mark 1110 and the X mark 1102 in the sensor data difference feature amount space. The sensor data difference comparison unit 306 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 306 normalizes 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 306 uses the recommended repair correspondence information 1001 plotted at the position closest to the position where the sensor data difference information is plotted on the sensor data difference feature amount space as a sensor. It is specified as recommended repair correspondence information 1001 that is optimal for the data difference information.

  For example, in the example illustrated in FIG. 9, the sensor data difference comparison unit 306 has the position of the x mark 1100 having the shortest distance from the position of the ◎ mark 1110 on which the sensor data difference information is plotted in the sensor data difference feature amount space. The recommended repair correspondence information 1001 “No parts replacement” plotted in the above is specified as the recommended repair correspondence information 1001 corresponding to the sensor data difference information. In this case, the sensor data difference comparison unit 306 causes the information processing terminal 200 to transmit the specified recommended repair correspondence information 1001 “no parts replacement” to the information processing terminal 200 (FIG. 1). 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. 10 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 S1200). In step S1200, when the sensor data acquisition unit 201 starts acquiring output values of one or more sensors 101, the display UI generation unit 204 generates the screen illustrated in FIG. 4 and the display unit 211 displays the screen. The

  After step S1200, after the failure details are 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 S1200. 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 S1201). Then, the sensor data difference calculation unit 202 causes the communication unit 203 to transmit the sensor data difference information generated in step S1201 to the repair information management server 300 (step S1202).

  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 306 manages the received sensor data difference information and the sensor data difference reference value information management unit 305. The sensor data difference reference value information (FIG. 8) including the same failure content 1000 as the failure content 501 included in the received sensor data difference information (FIG. 3) is compared. Then, the sensor data difference comparison unit 306 specifies the recommended repair correspondence information 1001 (FIG. 8) that is optimal for the received sensor data difference information based on the comparison result (step S1203). Then, the sensor data difference comparison unit 306 causes the communication unit 301 to transmit the recommended repair correspondence information 1001 specified in step S1203 to the information processing terminal 200 (step S1204).

  In the information processing terminal 200, when the recommended repair response information 1001 is received by the communication unit 203, the display UI generation unit 204 generates a dialog 700 (FIG. 5) indicating the received recommended repair response information 1001 and The generated dialog 700 (FIG. 5) is pop-up displayed on the display unit 211 so as to overlap the screen shown in FIG. 4 (step S1205).

  As a result, the maintenance staff can confirm the content of the recommended repair response information 1001 displayed in step S1205, 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 S1207). 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 S1208).

  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 stores the contents of repair correspondence indicated by the correspondence information 906 included in each piece of repair information. The maintenance staff evaluates whether it is appropriate from the viewpoint of cost, and the maintenance staff edits the evaluation 909 of each repair information (step S1209). 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 304 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. 8) is generated (step S1210).

  Then, the sensor data difference reference value information management unit 305 manages the sensor data difference reference value information generated in step S1210 instead of the currently managed sensor data difference reference value information (step S1211). Thus, the operation of the repair information management server 300 when the repair target device 100 is repaired is completed.

  Note that steps S1209 to S1211 do not necessarily have to be executed every time repairs are made by maintenance personnel. Steps S1209 to S1211 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, the repair information including the contents of the repairs actually performed by the maintenance staff has a high repair skill and abundant repair work experience. 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 1001 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 configuration of the first embodiment, the repair information evaluation unit 303 of the repair information management server 300 has a repair skill high and a repair person with abundant repair work experience. It was evaluated whether or not there was. For this reason, as the repair work by the maintenance staff increases and the repair information managed by the repair information history management unit 302 increases, it becomes difficult for the maintenance staff to perform the above evaluation on all repair information. Is concerned. Therefore, in the second embodiment, the repair information evaluation unit 303 is changed in view of the above concerns.

  Hereinafter, a method for evaluating each piece of repair information in the repair information evaluation unit 303 according to the second embodiment will be described with reference to the drawings.

  FIG. 11 is a diagram for explaining the operation of the repair information evaluation unit 303 according to the second embodiment of the present disclosure. Like FIG. 9, the sensor data difference feature amount space is represented by a two-dimensional plane. X marks 1300 to 1302 in FIG. 11 are similar to the X marks 1100 to 1102 in FIG. 9 and the suction temperature average values included in the three sensor data difference reference value information shown in the first to third lines in FIG. The positions corresponding to the difference average value 1002 and the discharge temperature average difference average value 1006 are shown.

  In the same manner as the sensor data difference comparison unit 306, the repair information evaluation unit 303 has three sensor data differences shown in the first to third lines in FIG. The recommended repair correspondence information 1001 included in the reference value information is plotted.

  Note that the three sensor data difference reference value information shown in the first to third lines in FIG. 8 is the failure content of the repair information managed as the repair information history (FIG. 7) by the repair information history management unit 302. Calculated by the sensor data difference reference value calculation unit 304 using repair information in which 903 is “not cooled”, re-repair presence / absence 908 is “none”, and the evaluation 909 is already “◯”. It is a thing.

  On the other hand, in FIG. 11, a circle mark 1310 indicates that the failure content 903 managed as the repair information history (FIG. 7) by the repair information history management unit 302 is “not cooled” and the correspondence information 906 is “parts”. Corresponding to the suction temperature average value difference and the discharge temperature average value difference included in the sensor data difference information 907 of the repair information that has not been replaced ”and the evaluation 909 is“ − ”and the repair contents are not evaluated. Indicates the position. Similar to the sensor data difference comparison unit 306, the repair information evaluation unit 303 plots the unevaluated repair information at the position of the circle 1310.

  Similarly, a circle mark 1311 indicates that the failure content 903, which is managed as the repair information history (FIG. 7) by the repair information history management unit 302, is “not cooled”, and the correspondence information 906 is “part A replacement”. And the position corresponding to the suction temperature average value difference and the discharge temperature average value difference included in the sensor data difference information 907 of the unevaluated repair information whose evaluation 909 is “−”. Similar to the sensor data difference comparison unit 306, the repair information evaluation unit 303 plots the unevaluated repair information at the position of the circle 1311.

  Then, like the sensor data difference comparison unit 306, the repair information evaluation unit 303 has a position of a circle 1310 on which the unevaluated repair information is plotted in the sensor data difference feature amount space and three pieces of recommended repair correspondence information. The distances from the positions of the x marks 1300, 1301, and 1302 in which 1001 are plotted are calculated. Similarly, the repair information evaluation unit 303 plots the position of the circle 1311 on which the unevaluated repair information is plotted and the three recommended repair correspondence information 1001 on the sensor data difference feature amount space. The distances from the positions of the marks 1300, 1301, and 1302 are also calculated.

  It is assumed that the scales of the values of the one or more differences included in the unevaluated repair information are greatly different from each other. In this case, the repair information evaluation unit 303, like the sensor data difference comparison unit 306, normalizes the value of each of the one or more differences included in the unevaluated repair information, and sensor data difference reference value information. A sensor data difference feature amount space having a feature value obtained by normalizing a reference value of each of the one or more differences included in the feature, and calculating the distance in the defined sensor data difference feature amount space You may make it do.

  Then, based on the calculated distance, the repair information evaluation unit 303 indicates that the recommended repair correspondence information 1001 plotted at the position closest to the position at which the unevaluated repair information is plotted in the sensor data difference feature amount space In the repair related to the repair information of the evaluation, it is determined that the content of the repair appropriate from the viewpoint of cost is shown.

  For example, in the example shown in FIG. 11, the circle mark 1310 is closest to the position of the x mark 1300 among the x marks 1300 to 1302, and the distance between the circle mark 1310 and the x mark 1300 is the shortest. Similarly, the circle mark 1311 is closest to the position of the x mark 1300 among the x marks 1300 to 1302, and the distance between the circle mark 1311 and the x mark 1300 is the shortest.

  For this reason, the repair information evaluation unit 303 determines that the recommended repair correspondence information 1001 “no parts replacement” plotted at the position of the X mark 1300 is the cost of the repair related to the unevaluated repair information plotted at the position of the ○ mark 1310. Judge that the contents of repairs are appropriate from the viewpoint. Similarly, the repair information evaluation unit 303 determines that the recommended repair correspondence information 1001 “no part replacement” plotted at the position of the x mark 1300 is the cost of the repair related to the unevaluated repair information plotted at the position of the circle mark 1311. Judge that the contents of repairs are appropriate from the viewpoint.

  Then, the repair information evaluation unit 303, when the correspondence information 906 included in the unevaluated repair information matches the recommended repair correspondence information 1001 that is determined to indicate the content of the optimum repair, It is determined that the information 906 indicates the contents of repair appropriate from the viewpoint of cost, and the evaluation 909 included in the undetermined repair information is updated from “−” to “◯”.

  On the other hand, if the correspondence information 906 included in the unevaluated repair information does not match the recommended repair correspondence information 1001 determined to indicate the content of the optimal repair, the repair information evaluation unit 303 In 906, it is determined that the content of the repair is inappropriate from the viewpoint of cost, and the evaluation 909 included in the undetermined repair information is updated from "-" to "x".

  For example, in the above example, the correspondence information 906 included in the unevaluated repair information plotted at the position of the circle 1310 is “no parts replacement” and plotted at the position of the mark 1300 closest to the position of the circle 1310. It corresponds to the recommended repair correspondence information 1001 “No parts replacement”. For this reason, the repair information evaluation unit 303 determines that the correspondence information 906 indicates the content of repair appropriate from the viewpoint of cost, and changes the evaluation 909 included in the unassessed repair information from “−” to “◯”. Update to

  On the other hand, the correspondence information 906 included in the unevaluated repair information plotted at the position of the ○ mark 1311 is “part A replacement”, and the recommended repair response plotted at the position of the X mark 1300 closest to the position of the ○ mark 1311. It does not match the information 1001 “No parts replacement”. For this reason, the repair information evaluation unit 303 determines that the corresponding information 906 indicates improper repair contents from the viewpoint of cost, and changes the evaluation 909 included in the unevaluated repair information from “−” to “ Update to x.

  That is, in the second embodiment, the repair information evaluation unit 303 manages unrepaired repair information whose evaluation 909 is “−”, which is managed as the repair information history (FIG. 7) by the repair information history management unit 302. Information 906 is evaluated as follows.

  The repair information evaluation unit 303 sets the recommended repair response information 1001 included in the sensor data difference reference value information closest to the unevaluated repair information in the sensor data difference feature amount space to the correspondence information 906 of the repair information. When it is done, it is evaluated that the content of the repair indicated by the correspondence information 906 is appropriate from the viewpoint of cost.

  On the other hand, the repair information evaluation unit 303 matches the recommended repair correspondence information 1001 included in the sensor data difference reference value information closest to the repair information in the sensor data difference feature amount space with the correspondence information 906 of the repair information. If not, the repair contents indicated by the corresponding information 906 are evaluated as inappropriate from the viewpoint of cost.

  As described above, according to the configuration of the second embodiment, the repair information history management unit 302 evaluates repair information for which the correspondence information 906 (FIG. 7) has not been evaluated. Can be performed based on the sensor data difference reference value information calculated from the repair information that has been evaluated to be appropriate from the viewpoint of cost. Thereby, the human cost for evaluating whether the content of repair information is appropriate can be reduced.

(Embodiment 3)
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 third embodiment, in consideration of the concern, the repair information management server manages the output values of one or more sensors 101 via a network.

  FIG. 12 is a diagram illustrating an example of a configuration of the repair work support system 10a according to the third 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 shown in FIG. 12, the repair work support system 10a (information providing system) according to the third embodiment includes a plurality of electronic devices (multiple devices) including a repair target device 1400 (first device, one device), An information processing terminal 1500 (information terminal) brought into a repair site by a maintenance staff and a repair information management server 1600 (computer) are provided. A plurality of electronic devices including the repair target device 1400 and the repair information management server 1600 are connected to each other via a network 90 in advance so as to communicate with each other.

  Each of the plurality of electronic devices including the repair target device 1400 includes one or more sensors 101 (first sensor, sensor), a communication unit 1402, and a sensor data generation unit 1401. Hereinafter, only the configuration of the repair target device 1400 will be described on behalf of the plurality of electronic devices. Communication unit 1402 has the same configuration as communication unit 301 (FIG. 1) in the first embodiment.

  The sensor data generation unit 1401 is configured by a control program stored in a ROM or the like of a microcomputer included in the repair target device 1400 being executed by the CPU of the microcomputer. The sensor data generation unit 1401 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 1600 via the communication unit 1402.

  FIG. 13 is a diagram illustrating an example of sensor data according to the third embodiment of the present disclosure. As shown in FIG. 13, the sensor data includes a time stamp 1700, device ID 1701, model number 1702, suction temperature 1703, discharge temperature 1704, indoor piping temperature 1705, and the like. The time stamp 1700 is the date and time when the sensor data is generated. The device ID 1701 is information for uniquely identifying the repair target device 1400. The model number 1702 is the model number of the repair target device 1400. The device ID 1701 and the model number 1702 are stored in advance in a ROM or the like of a microcomputer provided in the repair target device 1400. The suction temperature 1703 is an output value of a suction temperature sensor of the air conditioner indoor unit. The discharge temperature 1704 is an output value of the discharge temperature sensor of the air conditioner indoor unit. The indoor piping temperature 1705 is an output value of the piping temperature sensor of the air conditioner indoor unit.

  Further, the sensor data is not limited to the output values 1703 to 1705 described above, and may include an output value of an arbitrary sensor 101 mounted on the repair target device 1400 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 1500 is configured by an information processing apparatus including a microcomputer, such as a tablet terminal or a notebook computer. The information processing terminal 1500 includes a communication unit 203, a display UI generation unit 1501, and a UI unit 210.

  Similar to the display UI generation unit 204 (FIG. 1), the display UI generation unit 1501 is executed by a control program stored in a ROM of a microcomputer included in the information processing terminal 1500 being executed by the CPU of the microcomputer. Composed. The display UI generation unit 1501 receives sensor data acquired from a sensor data storage unit 1601 of a repair information management server 1600 (to be described later) or recommended repair correspondence information 1001 acquired from a sensor data difference comparison unit 1604 via the communication unit 203. A screen including (FIG. 8) and the like is generated, and the generated screen is displayed on the display unit 211.

  14 and 15 are diagrams illustrating an example of a screen display of the information processing terminal 1500 according to the third embodiment of the present disclosure. Specifically, FIG. 14 shows a display UI when the information processing terminal 1500 is communicably connected to the repair target device 1400 and the repair information management server 1600 and repair of the repair target device 1400 is started. An example of display contents of a screen generated by the generation unit 1501 and displayed by the display unit 211 is shown. FIG. 15 shows an example of the display content of a screen displayed when a button 1803 (described later) included in the screen of FIG. 14 is pressed by maintenance personnel.

  As illustrated in FIG. 14, the button 1800 is a button for instructing to transmit the information input to the input fields 600 to 603 to the repair information management server 1600. The button 1801 receives sensor data at the time of the latest operation of the repair target device 1400 from the sensor data storage unit 1601 of the repair information management server 1600, which will be described later, and the received sensor data in an area of graphs 1810 to 1812 which will be described later. It is a button for instructing to display the contents of. A button 1802 receives sensor data during operation at a specified date and time of the repair target device 1400 from the sensor data storage unit 1601 of the repair information management server 1600, which will be described later, and receives the received sensor in an area of graphs 1810 to 1812 described later. This is a button for instructing to display the contents of data.

  As described above, in the screen generated by the display UI generation unit 1501 in the third embodiment, in addition to the sensor data at the time of the latest operation of the repair target device 1400, in the sensor data storage unit 1601 of the repair information management server 1600. It is possible to refer to the stored sensor data at the time of arbitrary operation of the repair target device 1400.

  A button 1803 generates sensor data difference information (FIG. 3) based on sensor data in the first period and the second period of the repair target device 1400, and recommended repair correspondence information 1001 that is optimal for the generated sensor data difference information ( 8 is transmitted to the repair information management server 1600 by the communication unit 203, and the recommended repair correspondence information 1001 (FIG. 8) received by the communication unit 203 from the repair information management server 1600 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 1400. 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 1500. In addition, when the maintenance engineer presses the button 1803, the microcomputer, like the repair information generation unit 205 of the first embodiment, receives from the repair information management server 1600 the input field 600 and the input field 601 in the repair request information. The device ID associated with the repair date / time and the maintenance worker ID respectively input to the service information is acquired and included in the instruction information as the device ID of the repair target device 1400. However, the method for acquiring the device ID of the repair target device 1400 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 1400 by using a screen different from FIGS. 14 and 15. You may make it do.

  Graphs 1810 to 1812 are graphs showing the output values of one or more sensors 101 included in the sensor data received from the sensor data storage unit 1601 of the repair information management server 1600 in a time series graph. is there.

  The contents displayed on the graphs 1810 to 1812 vary depending on which of the buttons 1801 and 1802 is used to receive the sensor data from the sensor data storage unit 1601. In FIG. 14, three graphs are displayed, but 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 1810 to 1812.

  When the maintenance staff presses the button 1803, the display UI generation unit 1501 generates the screen illustrated in FIG. 15, and the display unit 211 displays the screen. As shown in FIG. 15, the screen includes input fields 600 to 603, buttons 1800 to 1803, graphs 1810 to 1812, and a dialog 1900. The input fields 600 to 603, the buttons 1800 to 1803, and the graphs 1810 to 1812 in FIG. 15 are the same as the input fields 600 to 603, the buttons 1800 to 1803, and the graphs 1810 to 1812 in FIG. Dialog 1900 is the same as 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 1600 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 1600 includes a communication unit 301, a repair information evaluation unit 303, a sensor data difference reference value calculation unit 304, a sensor data difference reference value information management unit 305, a sensor data storage unit 1601, and a normal operation sensor data management unit 1602. A sensor data difference calculation unit 1603, a sensor data difference comparison unit 1604, a repair information generation unit 1605, and a repair information history management unit 1606.

  The repair data management server 1600 includes a sensor data storage unit 1601, a normal operation sensor data management unit 1602, a sensor data difference calculation unit 1603, a sensor data difference comparison unit 1604, a repair information generation unit 1605, and a repair information history management unit 1606. 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 1601 stores the received sensor data each time the communication unit 301 receives sensor data transmitted from the repair target device 1400 via the communication unit 1402.

  FIG. 16 is a diagram illustrating an example of sensor data stored in the sensor data storage unit 1601 according to Embodiment 3 of the present disclosure. Specifically, the sensor data storage unit 1601 stores each sensor data received from the repair target device 1400 using the sensor data storage table T20 shown in FIG. The sensor data accumulation table T20 is configured by a predetermined storage area of a storage device provided in the repair information management server 1600.

  Each sensor data includes sensor data ID 2000, time stamp 2001, device ID 2002, model number 2003, suction temperature 2004, discharge temperature 2005, and indoor piping temperature 2006. Among these, the time stamp 2001, the device ID 2002, the model number 2003, the suction temperature 2004, the discharge temperature 2005, and the indoor piping temperature 2006 are the time stamp 1700, the device ID 1701, the model number 1702, the suction temperature 1703, the discharge shown in FIG. The information is the same as the temperature 1704 and the indoor piping temperature 1705. The sensor data storage unit 1601 stores each information 2000 to 2006 included in each sensor data in association with each other in the sensor data storage table T20.

  The sensor data ID 2000 is information given by the sensor data storage unit 1601 in order to uniquely identify each sensor data stored in the sensor data storage unit 1601.

  The sensor data is not limited to the above-described 2004 to 2006, and may include an output value of an arbitrary sensor 101 mounted on the repair target device 1400, such as the rotation speed of an indoor fan of an air conditioner.

  The normal operation sensor data management unit 1602 manages the sensor data stored in the sensor data storage unit 1601 when the repair target device 1400 is operating normally.

  Specifically, the sensor data management unit 1602 during normal operation has a time stamp included in the sensor data (FIG. 16) for each device ID 2002 included in the sensor data (FIG. 16) stored in the sensor data storage unit 1601. 2001, the output values 2004 to 2006 of one or more sensors 101 are acquired, and data including the acquired information 2001 and 2004 to 2006 is generated as normal operation sensor data of the repair target device 1400 specified by the device ID 2002. To do.

  Then, the normal operation sensor data management unit 1602 generates the normal operation sensor data generated for each device ID 2002 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 communication unit 301 receives the instruction information transmitted when the maintenance staff presses the button 1803 (FIG. 14), the sensor data difference calculation unit 1603 stores the sensor data stored in the sensor data storage unit 1601 (FIG. 13), the sensor ID (first sensing data, fourth sensing) including the time stamp 1700 corresponding to the first period indicated by the instruction information in which the device ID indicated by the instruction information matches the device ID 1701. Data). Then, in the same manner as the sensor data difference calculation unit 202 of the first embodiment, the sensor data difference calculation unit 1603 uses the acquired sensor data to generate one or more first statistical values (one or more first statistical values in the first period). Statistical value) is calculated.

  In addition, the sensor data difference calculation unit 1603 is managed by the normal operation sensor data management unit 1602, 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. Then, the sensor data difference calculation unit 1603 uses the acquired normal operation sensor data in the same manner as the sensor data difference calculation unit 202 of the first embodiment, and uses one or more second statistical values (in the second period). One or more statistics).

  The sensor data difference calculation unit 1603, 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 1604 generates sensor data difference information by the sensor data difference calculation unit 1603 after the communication unit 301 receives the instruction information transmitted when the maintenance staff presses the button 1803 (FIG. 14). Then, similarly to the sensor data difference comparison unit 306 of the first embodiment, the sensor data difference information (FIG. 3) generated by the sensor data difference calculation unit 1603 and the sensor managed by the sensor data difference reference value information management unit 305 The data difference reference value information (FIG. 8) is compared. Then, the sensor data difference comparison unit 1604 is similar to the sensor data difference comparison unit 306 of the first embodiment, and based on the comparison result, recommended repair correspondence information 1001 (optimum for the generated sensor data difference information ( Identify recommended information). Then, the sensor data difference comparison unit 1604 causes the communication unit 301 to transmit the specified recommended repair correspondence information 1001 to the information processing terminal 1500.

  The repair information generation unit 1605 receives, by the communication unit 301, information input in the input fields 600 to 603 (FIG. 15) transmitted from the information processing terminal 1500 when the maintenance staff presses the button 1800 (FIG. 15). Then, similar to 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 1603. Generate.

  The repair information history management unit 1606 repairs the repair information generated by the repair information generation unit 1605 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 third embodiment has been described above. Next, operations of the information processing terminal 1500 and the repair information management server 1600 from when the maintenance staff starts repairing the repair target device 1400 until the repair is completed in the repair work support system 10a will be described. FIG. 17 is a sequence diagram illustrating an operation flow of the information processing terminal 1500 and the repair information management server 1600 in the repair work support system 10a according to the third embodiment of the present disclosure.

  When the maintenance staff starts the repair of the repair target device 1400 by connecting the information processing terminal 1500 to the repair target device 1400 and the repair information management server 1600, the display UI generating unit 1501 of the information processing terminal 1500 The screen shown in FIG. 14 is generated and the screen is displayed on the display unit 211.

  When the maintenance person presses a button 1803 on the screen shown in FIG. 14 displayed on the display unit 211 of the repair target device 1400, the microcomputer of the information processing terminal 1500, as shown in FIG. Is transmitted to the repair information management server 1600 by the communication unit 203 (step S2100).

  When the sensor data difference calculation unit 1603 of the repair information management server 1600 receives the instruction information from the information processing terminal 1500 via the communication unit 301, as described above, the device of the repair target device 1400 indicated by the received instruction information. Sensor data difference information (FIG. 3) is generated using the ID, the first period, and the second period (step S2101).

  Next, the sensor data difference comparison unit 1604 includes the sensor data difference information (FIG. 3) generated in step S2101 and the sensor data difference reference value information (FIG. 8) managed by the sensor data difference reference value information management unit 305. And the recommended repair correspondence information 1001 (FIG. 8) most suitable for the generated sensor data difference information is specified based on the comparison result (step S2102). Then, the sensor data difference comparison unit 1604 causes the communication unit 301 to transmit the specified recommended repair correspondence information 1001 (FIG. 8) to the information processing terminal 1500 (step S2103).

  In the information processing terminal 1500, when the recommended repair correspondence information 1001 (FIG. 8) is received by the communication unit 203, the display UI generation unit 1501 displays a dialog 1900 (see FIG. 8) indicating the received recommended repair correspondence information 1001 (FIG. 8). FIG. 15) is generated. Then, the display UI generation unit 1501 causes the generated dialog 1900 (FIG. 15) to be pop-up displayed on the display unit 211 so as to overlap the screen shown in FIG. 14 (step S2104).

  As a result, the maintenance staff can confirm the content of the recommended repair response information 1001 displayed in step S2104, and can perform an optimal repair on the repair target device 1400. After completing the repair of the repair target device 1400, the maintenance staff inputs various information into the input fields 600 to 603 of the screen shown in FIG. 15 using the input unit 212, and presses the button 1800.

  When button 1800 is pressed, the microcomputer of information processing terminal 1500 transmits the information input in input fields 600 to 603 to repair information management server 1600 by communication unit 203 (step S2105). Thus, the operation of the information processing terminal 1500 when the repair target device 1400 is repaired is completed.

  In the repair information management server 1600, when the information input to the input fields 600 to 603 is received by the communication unit 301, the repair information generation unit 1605 generates the received information and the sensor data difference calculation unit 1603. Repair information (FIG. 6) is generated based on the sensor data difference information (step S2106).

  Next, the repair information history management unit 1606 newly assigns a repair ID 900 for uniquely identifying the repair information to the repair information generated in step S2106, 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 S2107).

  Subsequent steps S2108 to S2110 are the same as steps S1209 to S1211 (FIG. 10) of the first embodiment.

  As described above, according to the repair work support system 10a of the third embodiment, the repair target device 1400 is connected to the repair information management server 1600 via the network 90 so as to be communicable. Then, after starting the operation of the repair target device 1400, sensor data acquired during the operation is periodically transmitted to the repair information management server 1600. The sensor data is accumulated in the sensor data accumulation table T20 (FIG. 16) by the sensor data accumulation unit 1601.

  Therefore, when the maintenance staff performs the repair work, it is not necessary to perform complicated settings for directly connecting the information processing terminal 1500 and the repair target device 1400, 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. Further, the maintenance staff can refer to the sensor data acquired at any time in the repair target device 1400 stored in the sensor data storage table T20 (FIG. 16) as necessary. For this reason, the maintenance staff can check the details of the failure of the repair target device 1400 in more detail.

(Embodiment 4)
In the configuration of the third embodiment, the repair information evaluation unit 303 of the repair information management server 1600, like the first embodiment, provides maintenance personnel with high repair skills and abundant repair work experience to the cost of each repair information. From this point of view, it was evaluated whether repair contents were appropriate. For this reason, as the repair work by the maintenance staff increases and the repair information managed as the repair information history by the repair information history management unit 1606 increases, the maintenance staff can make the above evaluation for all repair information. There are concerns that it will be difficult. Therefore, in the fourth embodiment, the repair information evaluation unit 303 is changed in view of the above concerns. The contents of the change are the same as those added to the repair information evaluation unit 303 in the second embodiment, and a description thereof will be omitted. According to the configuration of the fourth embodiment, the same effect as that of the configuration of the second embodiment can be obtained.

  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)
T10 reference value table (second database)
1000 Failure details (first information)
1001 Recommended repair information (second information)
1002 Suction temperature average difference average value (statistical value)
1003 Suction temperature standard deviation difference average value (statistical value)
1004 Suction temperature maximum value difference average value (statistical value)
1005 Suction temperature minimum value difference average value (statistical value)
1006 Discharge temperature average difference average value (statistical value)
1400 Repair target equipment (first equipment, one equipment)
1500 Information processing terminal (information terminal)
1600 Repair information management server (computer)

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 The first information and the first information Based on the information, the second serviceman indicates whether or not the countermeasure indicated in the second information is good. The first information, the second information, and the third information are the one device. Is obtained through the information terminal corresponding to the one serviceman who repaired
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 in the first database is the same, 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 The first information and the first information Based on the information, the second serviceman indicates whether or not the countermeasure indicated in the second information is good. The first information, the second information, and the third information are the one device. Is obtained through the information terminal corresponding to the one serviceman who repaired
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 in the first database is the same, 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.

Images