JP6621628B2 - Multiple simultaneous status judgment system for machine parts - Google Patents

Description

  The present invention relates to a multiple simultaneous state automatic determination system for machine parts that diagnoses the state of a machine part, such as a vehicle bearing or its peripheral parts, and prevents an accident caused by a failure, and in particular, simultaneously determines a plurality of measurement objects. Related to technology.

Conventionally, the following diagnostic systems have been proposed.
・ In industrial fields such as railway vehicles and windmills, vibration sensors, rotation sensors, temperature sensors, etc. are installed in bearings and their peripheral parts, and their operating conditions are monitored (rolling bearing abnormality diagnosis devices and gear abnormality diagnosis). apparatus). (Patent Document 1)
-A system that transmits data detected by sensors using a mobile information terminal such as a smartphone, performs data processing and storage on a server, etc., and compares the data with past data (carriage of rotating machine parts) Terminal usage inspection method / inspection system and server). (Patent Document 2)

-System that transmits data detected by sensors to a server via a portable information terminal, etc., arranges user interface functions on multiple PCs, and shares measurement data, analysis means, and diagnosis results (vibration diagnosis system for rotating electrical machines) ). (Patent Document 3)
A system that downloads the data analysis program, the determination reference data, and the determination program to the user's information processing terminal, and executes the measurement data diagnosis process on the information processing terminal (an abnormality diagnosis system for mechanical equipment including a vibration element). (Patent Document 4)

JP 2012-42338 A JP2013-228352A Japanese Patent No. 4210604 Japanese Patent No. 3858977

Currently, for bearing inspections, subjective judgments that rely on the five senses of the mechanic, such as appearance, gritty, and abnormal noise, are common, and because there are variations in diagnostic criteria, failure due to poor maintenance cannot be eradicated. .
In response to this problem, there is a need for a maintenance tool capable of quantitative determination for higher accuracy of state determination, and the above-described conventional techniques and the like have been proposed. However, the conventional techniques have the following problems.

In the case of measurement at a fixed part, it is easily affected by a disturbance under an environment with a large disturbance. (Patent Documents 1, 2, 3, 4)
In the case of a device that has multiple moving parts near the vibration source (engine), such as an engine accessory, each connected by a belt, etc., the influence of the disturbance is so great that it can be measured as much as possible. It is necessary to measure at a close position. Further, when detecting the state of the movable part, the measurement with the direct movable part is effective, but a specific method is not clearly described. (Patent Documents 1, 2, 3, 4)
When a measuring instrument is used for multiple measurement objects, the settings such as the name and measurement conditions (specifications of the measurement object) must be changed each time the object changes. (Patent Documents 1, 2, 3, 4)
Concerns include name setting rules for data sharing, setting / selection errors, information overwriting / loss, etc.

  A PC is required for displaying the diagnosis result, and when the result is confirmed at the measurement site, the measurement portable terminal PC must be used for measurement and diagnosis. (Patent Document 3)

As a means to solve the above problems, a detachable type that has a stay in the measurement unit and keeps the sensor unit fixed in the same state has been proposed first. However, when the distance between the sensor unit and the information terminal is increased, the sensor unit and the information terminal Communication is not possible if the communication environment is bad, such as an obstacle between them. (Japanese Patent Application No. 2014-211676 “Automatic state determination system for machine parts”)
In addition to this, as a means for solving the above problems, a detachable type was proposed in which a stay is provided in the measurement unit and the sensor unit is always kept in the same fixed state (Japanese Patent Application No. 2014-213365 “Condition determination system for belt system”). . However, when a plurality of sensor units are used, a signal is transmitted from each sensor unit, so that communication with the information terminal is congested and the communication speed is reduced.

  Further, when measuring a plurality of sensor units at the same time, in order to avoid the above problems, it is necessary to mount a communication module having a high-function communication function in each sensor unit, which increases costs and is cost-effective. become worse.

  An object of the present invention is to provide a mechanical component that can obtain excellent measurement accuracy and quick mounting properties, and can cope with an increase in the number of sensor units having a simple configuration even when there are a plurality of measurement objects, thereby reducing the cost burden. It is to provide a multiple simultaneous state determination system.

The prerequisite simultaneous determination system for a plurality of simultaneous state of mechanical parts detects a plurality of stays 2 fixed to a plurality of parts 1 to be measured, and can be attached to and detached from each of the stays 2 and the state quantity of the part 1 is detected. One parent device sensor unit 3a having a state detection sensor 302 and a plurality or one child device state detection sensor unit 3b,
Each stay 2 has unique information storage means 201 that stores unique information of the component 1 to which the stay 2 is fixed,
The slave unit sensor unit 3b is measured by the state detection sensor 302 together with the unique information reading device 301 that reads the unique information from the unique information storage unit 201 of the stay 2 and the unique information read by the unique information reading device 301. And a communication device 309 that transmits the state quantity to the parent sensor unit 3a,
The parent device sensor unit 3a receives the unique information reading device 301 that reads the unique information from the unique information storage unit 201 of the stay 2, and the unique information and the state quantity transmitted from each of the child device sensor units 3b. The communication device 308, the received unique information and state quantity, and the unique information and state quantity read or measured by the unique information reading device 301 and the state detection sensor 302 of the parent device sensor unit 3a. And a communication device 307 with an information terminal that transmits to the processing system 302 that makes a determination regarding abnormality or life of the component 1.
Note that the “communication device” referred to in this specification includes a device that performs communication and means for selecting and processing communication contents by the device.

According to this configuration, since the state determination system is configured by one parent device sensor unit 3a and a plurality of or one child device sensor unit 3b, the child device sensor unit 3b is the minimum that transmits the collected data to the parent device. It becomes a limit composition. Therefore, even if the number of measurement target parts 1 increases to a large number, the cost burden due to the increase in the handset sensor unit 3b is reduced.
In addition, since the stay 2 is permanently installed, the mounting position of the sensor unit 3 (3a, 3b) is stabilized, variation in measurement data due to mounting errors is suppressed, and preparation for measurement in a short time becomes possible.
For example, even when the state detection sensor 302 cannot be attached to the fixing portion of the vehicle bearing that is the measurement target component 1 and its peripheral components, the vehicle bearing and its peripheral components can be obtained by using the stay 2. A sensor unit 3 (3a, 3b) including a state detection sensor 302 for detecting the state of the measurement target component 1 can be mounted.
Since the unique information storage means 201 storing the unique information of the part 1 is provided in the stay 2 and this unique information is read by the unique information reading device 301 of the sensor unit 3 (3a, 3b), the measurement object can be easily grasped, Preparation for measurement in a short time becomes possible. This facilitates data accumulation and past data retrieval. Since the part can be specified, for example, when the component 1 is a bearing, it is possible to set a threshold for abnormality determination according to the environment for each part, not for each bearing part number. For example, it is possible to make a highly accurate determination in consideration of disturbance.

Multiple simultaneous state determination system of the inventions of the machine parts, Oite the premise construction, comprising an information terminal 5 and the data server 6 constituting the processing system 4,
The information terminal 5 includes a communication device 501 that receives the unique information and the state quantity of each component 1 transmitted from the communication device 307 of the base unit sensor unit 3a, and the received unique information of each component 1 and A communication network communication device 508 for transmitting the state quantity to the data server 6 via the communication network 7,
The data server 6 includes a communication network communication device 606 that receives the unique information and the state quantity of each component 1 transmitted from the information terminal 5, and a database that stores state determination reference information for each type of the component 1. A state determination unit that selects the state determination reference information from the database using the received unique information of the component 1 and determines the state of the component 1 using the state determination reference information as a determination reference 604 may be included. The communication network 7 is a wide area communication network such as the Internet.
According to this configuration, it is possible to make a state determination using the database of the data server 6, and an improvement in determination accuracy can be expected.

In the present invention, the data server 6 includes a processing data storage unit 605 that stores the determination result determined by the state determination unit 604, and a communication network communication unit 606 that transmits the determination result via the communication network 7. Anyway.
In the case of this configuration, if the determination result is received by the information terminal 5, the information terminal 5 such as a portable information terminal can cope with measurement setup and browsing of the diagnosis result.

  In the present invention, the unique information storage means 201 may be any one of an electronic tag, a one-dimensional barcode, and a two-dimensional barcode. According to these, a large amount of information can be stored with a simple configuration, and the unique information reader 301 can also use a popular product.

In the present invention, the sensor unit 3 (3a, 3b) of the parent device or the child device may be configured such that an acceleration sensor 302a is mounted as the state detection sensor 302 and the vibration of the component 1 is detected.
In many parts, when a failure occurs, vibration is accompanied. Therefore, abnormality can be determined by detecting the vibration.

  In the present invention, the sensor unit 3 (3a, 3b) of the parent device or the child device may be configured to mount a rotation sensor or gyro sensor 302b as the state detection sensor 302 and measure the rotation of the component 1. When the component 1 to be measured is a rotating component such as a bearing, it is possible to determine abnormality using the rotational speed. Further, when the rotation speed is detected together with the vibration detection, a highly accurate determination can be made.

In the present invention, the stay 2 may be fixed concentrically with the rotation center of the rotating body in the component 1.
In the case of this configuration, the measurement at the center of the movable part makes it difficult to be affected by disturbances and enables highly accurate measurement.

  In the present invention, the communication devices 308 and 309 in the sensor unit 3 (3a, 3b) of the parent device or the child device may perform wireless communication. If it is wireless, it is possible to avoid the wiring from becoming an obstacle to the device including the measurement target component 1, and the restriction on installation of the sensor unit 3 (3a, 3b) is eased.

In this invention, the information terminal 5 has a general-purpose OS and can install application software, and the information terminal functions as the multiple simultaneous state determination system by the application software installed. You may make it comprise a means.
Thereby, a general-purpose information terminal, for example, a general personal computer, a smart phone, or a tablet-type terminal can be used as the information terminal 5.

  In the present invention, the data server 6 may have data analysis means capable of signal processing including frequency analysis. According to the frequency analysis, it is possible to accurately determine abnormality or the like for various machine parts such as bearings.

The multiple simultaneous state determination system for mechanical parts of the present invention includes a plurality of stays fixed to a plurality of parts to be measured, and a state detection sensor that can be attached to and detached from each of the stays and detects a state quantity of the parts. Each of the stays has a unique information storage unit that stores unique information of the component to which the stay is fixed, and the slave unit includes: The sensor unit includes a unique information reading device that reads the unique information from the unique information storage unit of the stay, and a state quantity measured by the state detection sensor together with the unique information read by the unique information reading device. The base unit sensor unit transmits the unique information from the unique information storage means of the stay. A unique information reading device that reads the unique information and state quantity transmitted from each of the slave unit sensor units, the received unique information and state quantity, and the uniqueness of the master unit sensor unit. A communication network communication device that transmits the specific information and the state quantity read or measured by the information reading device and the state detection sensor to a processing system that performs a determination on abnormality or life of the component, and constitutes the processing system An information terminal and a data server, and the information terminal receives the unique information and the state quantity of each component transmitted from the communication device of the master sensor unit, and the received each component A communication network communication device that transmits the unique information and the state quantity to the data server via the communication network is provided. The data server includes a communication network communication device that receives the unique information and state quantity of each component transmitted from the information terminal, a database that stores state determination criterion information for each type of component, and the reception because that was using the unique information of the part selected the state determination criterion information from said database, having a a determining condition judging unit the state of the component by using the state determination criterion information as a criterion Excellent measurement accuracy and quick mountability can be obtained, and even when there are a plurality of measurement objects, it can be handled by increasing the number of sensor units with a simple configuration, thereby reducing the cost burden.

1 is a block diagram showing an overall conceptual configuration of a multiple simultaneous state determination system for machine parts according to an embodiment of the present invention. It is a block diagram which simplifies and shows FIG. It is sectional drawing which shows the specific example of the components in the same state determination system, a stay, and a sensor unit. It is a block diagram which mainly shows the subunit | mobile_unit sensor unit in the state determination system. It is a block diagram which mainly shows the main | base station sensor unit in the state determination system. It is a block diagram of the conceptual structure which mainly shows the information terminal and data server in the state determination system. It is a block diagram of the conceptual structure which mainly shows the information terminal and data server in the multiple simultaneous state determination system of other embodiment.

An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the multiple simultaneous state determination system for mechanical parts includes a plurality of stays 2, a plurality of sensor units 3, and a processing system 4 fixed to a plurality of parts 1 to be measured. One of the plurality of sensor units 3 is a parent device sensor unit 3a, and the remaining plurality or one is a child device sensor unit 3b. The processing system 4 includes an information terminal 5 and a data server 6. In addition, the display terminal 8 may be included. In each figure, "part", "stay", and the alphabet A which was subjected after the letters "handset sensor unit", B, ... is a plurality of code to distinguish each component together like. The measurement object part 1 is various machine parts, for example, a bearing such as a bearing for a vehicle and its peripheral parts. The processing system 4 may be a single information processing device such as a personal computer.

(Stay 2)
The stay 2 is fixed to a plurality of measurement target components 1 that are measurement targets, and is provided with a unique information storage unit 201 in which unique information previously input is written. It is desirable that the unique information includes information capable of identifying a solid.
By assembling the master unit or slave unit sensor units 3a and 3b using the stay 2 fixed integrally with the measurement target component 1, it is possible to perform repeated measurement without assembling errors. In the unique information storage unit 201, unique information of each measurement target component 1 can be stored.

(Slave unit sensor unit 3b)
The slave unit sensor unit 3b is detachable from the stay 2, and is a wireless communication that transmits the state quantity data measured by the state detection sensor 302 and the unique information read by the unique information reader 301 to the master unit sensor unit 3a. A device 309;
The slave unit sensor unit 3b reads the unique information in the unique information storage unit 201 of the stay 2 when connecting the stay 2 and the slave unit sensor unit 3b. The attachment portion of the slave unit sensor unit 3b to the measurement target component 1, that is, the attachment portion of the stay 2, can be either the fixed portion of the measurement target component 1 or the movable portion core of the rotation portion. Measurement on the movable part core enables measurement that is not easily affected by disturbances such as vibration caused by other parts, while being attached to the movable part.

(Master sensor unit 3a)
The base unit sensor unit 3a has the same basic configuration as the base unit sensor unit 3b, such as the attachment / detachment to the stay 2, the state detection sensor 302, and the unique information reading device 301, but the communication is as follows. The functions are different.
The master unit sensor unit 3a is detachable from the stay 2 in the same manner as the slave unit sensor unit 3b, and the state detection sensor 302 for detecting the state quantity of the measurement target component 1 and the unique information of the unique information storage means 201 of the stay 2 are stored. In addition to this, it has a unique information reading device 301 for reading, and in addition to this, a wireless communication device 308 that receives state quantity data and unique information from the communication device 309 of each slave unit sensor unit 3b, obtained by receiving and detecting or reading them It has an information storage device 303 that temporarily stores state quantity data and unique information for reliable transmission, and a communication device 307 that wirelessly transmits the stored state quantity data and unique information.

The master unit sensor unit 3a reads the unique information in the unique information storage means 201 of the stay 2 when connecting the stay 2 and the master unit sensor unit 3a, similarly to the slave unit sensor unit 3b.
The attachment part of the main unit sensor unit 3a, that is, the attachment part of the stay 2, can be either the fixed part of the measurement target component 1 or the movable part core of the rotating part.
The base unit sensor unit 3a measures the state quantity of the measurement target component 1, and transmits the detected state quantity and the unique information read from the stay 2 to the information terminal 5 or the like by the communication device 307. It is also possible to receive information from the slave unit sensor unit 3b, store the information in the information storage device 303, and transmit information to the information terminal 5.

(Information terminal 5)
As shown in FIG. 6, the information terminal 5 transmits the received state quantity and unique information to the communication network 7 from the communication device 501 that receives the state quantity and unique information transmitted and received from the base unit sensor unit 3a. This is a terminal with a communication function having a communication network communication device 508 that accesses and transmits to the data server 6.
The information terminal 5 accesses the data server 6 through the communication network communication device 508, and can receive and browse specific information on the measurement target, past measurement data, state diagnosis results, and the like.
The information terminal 5 may have the functions described above by installing an application program using general-purpose portable communication such as a smartphone or a tablet.

(Data server 6)
The data server 6 includes an information storage unit 601 that stores unique information of each stay 2 and the measurement target component 1, a specification database 602 that stores specification data such as bearings, peripheral components, and vehicle information, and data transmission / reception A communication network communication device 606 that performs communication control such as, and a state determination unit 604. The information storage unit 601 and the specification database 602 constitute a set of databases. The state determination unit 604 includes a data analysis unit 603 that performs signal processing of state amount digital data, and uses the analysis result to determine the state of the measurement target component 1 (whether there is an abnormality, the remaining life, etc.). . The data of the analysis processing result and the result of the state determination are stored in the processing data storage unit 605.

The data server 6 receives the data from the information terminal 5 by the communication network communication device 606, selects the storage data of the information storage unit 601 with the specific information, and determines the measurement site. In addition, using the specific information, signal processing conditions suitable for the measurement target are determined from bearings and peripheral parts in the specification database 602, vehicle information, and the like, and analyzed by the data analysis unit 603. The analysis result is stored in the processing data storage unit 605, and a determination threshold value is set using accumulated data for each part. The state determination unit 604 determines the presence / absence of an abnormality and the remaining life state by comparing the analysis result with a determination threshold value.
In addition to this, the data server 6 estimates an abnormality occurrence site using the bearing and peripheral component information in the specification database unit 602 and the analysis result. The analysis result is transferred to the information terminal 5 or the like via the communication network 7. If there is an abnormality in the analysis result, it is displayed on a display means (not shown) in the data server 6, and the administrator who viewed the display on the display means notifies the set contact information by e-mail or telephone. This notification by e-mail or telephone may be automatically made to registered contacts.

(Display terminal 8)
The display terminal 8 is a terminal that can access the data server 6 via the communication network 7, receive information from the data server 6, and display the information. You can view the results.
The display terminal 8 is not particularly provided, and the information terminal 5 may be used as a display terminal.

  Although not shown, the parent device sensor unit 3a is equipped with a microcomputer for controlling each communication condition, data storage, and the like. The parent device sensor unit 3a and the child device sensor unit 3b may further include a battery 305 (FIG. 3), an A / D converter, a display, or the like depending on the intended use.

  The state detection sensors 302 provided in the sensor units 3a and 3b of the master unit and the slave units are sensors that detect the state quantity of the measurement target component 1, and may be one, but as shown in FIG. For example, an acceleration sensor 302a that performs vibration measurement, and a gyro sensor 302b that performs rotation detection or a rotation sensor (not shown) may be provided. In addition, the state detection sensor 302 may have a temperature sensor (not shown).

In this embodiment, the state detection sensor 302 is an analog output sensor, and the measurement data is digitally converted by the A / D converter (not shown) and output wirelessly. Note that the sensor unit 3 (3a, 3b) may output the measurement data as analog data by wire and perform A / D conversion on the information terminal 5. A sensor that outputs a digital signal as the state detection sensor 302 may be used.
When the base unit sensor unit 3a is installed in the movable part of the measurement target component 1, it may be transmitted to the information terminal 5 by wire using a slip ring (not shown). The battery may be a battery type or a charging type.

The unique information reading device 301 is a device that reads the content stored by the unique information storage unit 201 provided in the stay 2 in a non-contact manner or in contact with the unique information storage unit 201. The sensor unit 3 (3a, 3b) ) Is provided so that the unique information storage means 201 can be read in a state where the state can be detected by the stay 2.
The unique information reader 301 uses a tag reader when the unique information storage means 201 is an RFID, and a barcode reader when the unique information storage means 201 is a one-dimensional or two-dimensional barcode. The communication devices 308 and 309 between the parent device and the sensor unit 3 (3a, 3b) of the child device and the communication device 307 with the information terminal 5 may be devices capable of wireless communication at a very short distance.

  The stay 2 is always mounted on the fixed part of the measurement target part 1 such as a bearing or the center of the movable part of the measurement target part 1, but when it is difficult to attach the stay 2 to the existing measurement target part 1, The measurement target component 1 may be an integral structure component having the stay 2 function.

  FIG. 3 shows a specific example of the measurement target component 1, the stay 2, and the sensor unit 3 (3a, 3b). The measurement target component 1 is a rolling bearing device in this example, and specifically has a configuration in which a pulley 102 in an auxiliary machine of an automobile is rotatably supported on a fixed shaft 103 via a rolling bearing 101. A belt 104 is hung on the pulley 102. The rolling bearing 101 is an outer ring rotating, and a pulley 102 is fitted to the outer peripheral surface of the outer ring 101b which is the rotating side wheel. The rolling bearing 101 includes a rolling element 101c formed of a ball and a seal 101d between an inner ring 101a and an outer ring 101b. A component part 105 that is a movable part such as an end face cover that covers the end face of the rolling bearing 101 is attached to the pulley 102. The stay 2 is fixed to the outer surface of the component 105, and the center of the holding portion 2 a that holds the sensor unit 3 is located on the rotation center O of the rolling bearing 101.

The stay 2 has an outer shape including a short cylindrical seat portion 2b whose back side surface is joined to the movable part, and a shaft-shaped holding portion 2a protruding from the center of the front side surface of the seat portion 2b. The cross-sectional shape of the stay 2 may be any of a hollow shaft type, a semi-hollow shaft type, and a hollow non-type. The material of the stay 2 may be a synthetic resin or a metal. The stay 2 and the component 105 may be joined in any joining form such as a screw, an adhesive, magnetism, welding, a labyrinth shape, or a ring.
In the illustrated example, the holding portion 2a is such that the bottom surface 306b of the case 306 of the sensor unit 2 is in contact with the seat portion 2b of the stay 2, and the holding portion 2a is press-fitted into a mounting hole 306a provided on the bottom surface, or a screw, The sensor unit 2 is positioned and held by fitting in a magnetic or labyrinth shape.

The unique information storage unit 201 is a unit that stores unique information unique to the measurement target component 1 and includes an RFID, a one-dimensional barcode, a two-dimensional barcode, or the like. A QR code (registered trademark) is used as the two-dimensional barcode.
The unique information stored in the unique information storage means 201 is information unique to the measurement target component 1 and includes, for example, the product name, individual number, installation location, use start date, type of component, internal specifications, use conditions thereof, and the like. Yes, it can be arbitrarily selected according to the application. In addition to this, the unique information may be basic information such as the model number or serial number of the stay 2 itself.

  In FIG. 6, the terminal-side processing means 504 is constituted by dedicated software and has a function of controlling information communication with the parent sensor unit 3a and the data server 6, data display, and the like. The dedicated software constituting the terminal-side processing means 504 is downloaded and installed from the data server 6, or is a portable storage medium such as a CD or DVD, or other than the data server 6 on the Internet constituting the communication network 7. Obtained from homepage, app site, etc. and installed. The OS (operation program) 503 of the information terminal 5 has a function that enables such download and installation. The terminal-side processing means 504 displays, on the screen of the display device 509, as the related information, for example, the unique information of the stay 2, the measurement data of the sensor unit 3 (3a, 3b), and the state determination transmitted from the data server 6 Display results and analysis results.

  In addition to the above, the information terminal 5 includes an input unit 502 such as a touch panel for input by an operator, and an information storage unit 505 for storing the measurement data and unique information, the state determination result, the analysis result, and the like.

The flow of processing in this multiple simultaneous state determination system for machine parts will be described. In FIG. 1, each slave unit sensor unit 3b transmits the information received from the unique information recording means 201 of the attached stay 2 and the state quantity acquired from the state detection sensor 302 to the base unit sensor unit 3a.
The parent device sensor unit 3a transmits the data received from each child device sensor unit 3b and the data acquired by itself to the information terminal 5.
The information terminal 5 transmits the data received from the parent device sensor unit 3a to the data server 6 via the communication network 7.

  The data server 6 determines the state of the measurement target component 1 from the data received from the information terminal 5 and previously input measurement target information, and displays the determination result, information instructed from the display terminal 8, and the like. Send to.

The communication method of each of the communication devices 307, 308, 309 is preferably wireless communication. In the case of wireless communication, when handling a plurality of sensor units 3 (3a, 3b), the sensor unit can be arranged without worrying about wiring, so that workability is improved and interference between the nearby component 1 and wiring is achieved. Since there is no need to worry about it, the safety is improved and the handling is improved.
Further, since the communication between each slave unit sensor unit 3b and the master unit sensor unit 3a is a one-to-one short-range communication, the communication devices 308 and 309 can constitute an energy-saving and compact communication circuit. Become.
The information terminal device 5 and the display terminal 8 may be the same as long as they can operate this system, such as a tablet terminal, a personal computer, and a dedicated terminal.
The communication network 7 is, for example, the Internet, a web browser, or a cloud.

According to the multiple simultaneous state determination system for mechanical parts having this configuration, the following effects can be obtained.
-Since the status detection system is configured with one master unit sensor unit 3a and a plurality of slave unit sensor units 3b, the slave unit sensor unit 3a has a minimum configuration that only transmits collected data to the master unit sensor unit 3a. Therefore, even when there are a plurality of measurement target parts (measurement target axes) 1, the cost burden due to the increase in the handset sensor unit 3a is reduced.
-Since the stay 2 is permanently installed, the mounting position of the sensor unit 3 (3a, 3b) is stable, the variation in measurement data due to mounting errors is suppressed, and preparation for measurement is possible in a short time. Even if the sensor cannot be attached to the fixed part of the vehicle bearing and its peripheral components that are the measurement target component 1, the movable portion of the vehicle bearing and its peripheral components has a state detection sensor 302 that can detect the state of the measurement target. Sensor unit 3 (3a, 3b) can be mounted.
・ By measuring at the center of the moving part, it is difficult to be affected by disturbances and high-precision measurement is possible.
-By installing the identification information storage means 201 in the stay 2, it becomes easy to grasp the measurement target component 1, and preparation for measurement in a short time becomes possible.
・ It becomes easy to accumulate data and search past data. Since the part can be specified, it is possible to set a threshold for abnormality determination according to the environment for each part, not for each bearing part number. For this reason, high-accuracy determination can be performed in consideration of disturbance.
-The portable information terminal 5 can cope with measurement setup and browsing of diagnosis results.

FIG. 7 shows another embodiment of the present invention. In the embodiment shown in FIGS. 1 to 6, data analysis and state determination are performed by the data server 6. However, in the example of FIG. 7, data analysis and state determination are performed by the information terminal 5. The terminal 5 is an information / display terminal having an information display function.
Specifically, the processing system 4 includes the information terminal 5 and a data server 6 connected to the information terminal 5 via a communication network 7. The information terminal 5 receives the measurement data from the parent sensor unit 3a. And a communication network communication device 508 that obtains the unique information and transmits the unique information to the data server 6, and a state determination unit 507. The state determination unit 507 includes a data analysis unit 506. The data server 6 automatically identifies the part 1 and selects the specification information based on the specification database 602 storing the specification information of the machine part corresponding to the unique information and the unique information transmitted from the information terminal 5. A communication network communication unit 606 that performs transmission to the information terminal 5, and the data analysis unit 506 and the state determination unit 507 of the information terminal 5 use the specification information transmitted from the data server 6. Then, analysis and determination of the state are performed based on the measurement data obtained from the sensor unit 3 (3a, 3b).

  Even if information terminals in recent years are portable terminals such as personal computers, smartphones, tablets, etc., the arithmetic processing function has been dramatically improved, and state determination processing such as abnormality determination with sufficient accuracy and processing speed Can be done. However, determination information such as determination information and past data becomes a huge amount of data when used for a plurality of parts 1, and is difficult to store in the information terminal 5 at hand and is wasteful. Therefore, as described above, the determination information is stored in the data server 6 and transmitted from the data server 6 to the information terminal 5, that is, the data server 6 is simply used as a database, and the information terminal 5 determines its state. By performing only the above process, it is possible to effectively use the advanced processing function of the information terminal 5 and perform the state determination while reducing the burden on the data server 6 and the usage cost of the data server 6.

Also in this embodiment, the data server 6 includes a processing data storage unit 605 and an information storage unit 601 that store the results of data analysis and state determination for the mechanical component 1 as history information of the component 1, The data server 6 has a function of performing the state determination using information on the history of the mechanical part 1.
Even if it is normal by performing state determination such as abnormality determination with determination information determined from machine part specifications for each type of component 1, it may become abnormal if it is determined using past determination information about the individual . Therefore, by performing state determination based on history information in addition to state determination by type, and performing comprehensive determination from the results of both determinations, the accuracy of determination such as abnormality determination is improved.
Other configurations and effects are the same as those of the first embodiment shown in FIGS.

  The data server 6 has a function of performing the data analysis and the determination of the state as in the embodiments of FIGS. 1 to 6, and the information terminal 5 performs the data analysis and the state according to setting conditions. It may have a function of switching whether to perform the determination at the information terminal 5 or the data server 6.

Note that the measurement target component 1 that is a determination target of the multiple simultaneous state determination system for mechanical components of each of the above embodiments is the above-described vehicle bearing or its peripheral components.
Vehicle bearings include alternator bearings, cell motor bearings, water pump bearings, hydraulic pump bearings, fan coupling bearings, compressor bearings, supercharger bearings, turbocharger bearings, idler pulley bearings, etc. Can be mentioned.
Peripheral components include bearing shafts, nuts, pulley covers, belts, alternators, cell motors, water pumps, hydraulic pumps, fan couplings, compressors, superchargers, turbochargers, idler pulleys, and others with movable / fixed parts. Can be mentioned.

  As mentioned above, although the form for implementing this invention based on the Example was demonstrated, embodiment disclosed here is an illustration and restrictive at no points. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1 ... Part 2 ... Stay
201 ... Unique information storage means 3 ... Sensor unit
3a… Master unit sensor unit
3b ... Slave unit sensor unit
301 ... Unique information reader
302 ... Status detection sensor
307,308,309 ... communication device 4 ... processing system 5 ... information terminal 6 ... data server 7 ... communication network 8 ... display terminal

Claims (9)

One master unit sensor unit and a plurality or one child having a plurality of stays fixed to a plurality of parts to be measured, a state detection sensor that can be attached to and detached from each of the stays and detects a state quantity of the parts. Machine sensor unit,
Each stay has unique information storage means for storing unique information of the component to which the stay is fixed,
The slave unit sensor unit includes a unique information reading device that reads the unique information from the unique information storage unit of the stay, and the state quantity measured by the state detection sensor together with the unique information read by the unique information reading device. A communication device for transmitting to the machine sensor unit,
The parent device sensor unit includes a unique information reading device that reads the unique information from the unique information storage unit of the stay, a communication device that receives the unique information and the state quantity transmitted from each of the child device sensor units, The received unique information and state quantity, and the unique information reading device of the base unit sensor unit and the unique information and state quantity read or measured by the sensor are used to determine whether the component is abnormal or life-long. a communication device and to be transmitted to,
Comprising an information terminal and a data server constituting the processing system,
The information terminal receives the unique information and state quantity of each component transmitted from the communication device of the base unit sensor unit, and the received unique information and state quantity of each of the parts to the data server Having a communication device for a communication network that transmits to the communication network via
The data server includes a communication network communication device that receives unique information and a state quantity of each component transmitted from the information terminal, a database that stores state determination criterion information for each type of the component, and the received using the unique information of the part selected the state determination criterion information from said database, that having a and determining state determination unit to the state of the component by using the state determination criterion information as a criterion,
A simultaneous determination system for a plurality of machine parts. The multiple simultaneous state determination system for machine parts according to claim 1 , wherein the data server includes a processing data storage unit that stores a determination result determined by the state determination unit, and the determination result is transmitted to the communication network communication unit. A system for determining a plurality of simultaneous states of machine parts transmitted by an apparatus. 3. The multiple simultaneous state determination system for machine parts according to claim 1 or 2 , wherein the unique information storage means is one of an electronic tag, a one-dimensional barcode, and a two-dimensional barcode. Multiple simultaneous status judgment system. The multiple simultaneous state determination system for machine parts according to any one of claims 1 to 3 , wherein the sensor unit of the parent device or the child device includes an acceleration sensor as the state detection sensor, Multiple simultaneous status judgment system for machine parts that detect vibration. The multiple simultaneous state determination system for machine parts according to any one of claims 1 to 4 , wherein the sensor unit of the parent device or the child device mounts a rotation sensor or a gyro sensor as the sensor, Multiple simultaneous status determination system for machine parts that measure the rotation of the machine. The multiple simultaneous state determination system for mechanical parts according to any one of claims 1 to 5 , wherein the stay is a multiple simultaneous state determination for mechanical parts fixed concentrically with a rotation center of a rotating body in the part. system. The multiple simultaneous state determination system for machine parts according to any one of claims 1 to 6 , wherein each of the communication devices in the sensor unit of the master unit or the slave unit is a plurality of machine parts performing wireless communication simultaneously. State determination system. The multiple simultaneous state determination system for machine parts according to claim 1 or 2 , wherein the state determination unit of the data server includes a data analysis unit capable of signal processing including frequency analysis. Judgment system. 9. The multiple simultaneous state determination system for machine parts according to claim 1, 2 or 8 , wherein the information terminal is a general-purpose information terminal having a general-purpose OS and capable of installing application software. Further, a plurality of simultaneous status determination system for mechanical parts which constitutes each means by causing the information terminal to function as the multiple simultaneous status determination system by the application software.

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