Machine component monitoring, diagnosing and selling system
First Claim
1. A machine component monitoring system for monitoring machine components used in a machine system provided with a plurality of such machine components each having rolling elements, which system comprises:
- control means;
a plurality of determining units each connected with a plurality of sensors, said determining units being connected with the control means, each of the sensors being arranged on the respective machine component for detecting an influence signal resulting from passage of the rolling elements induced in the machine component, each of the determining units being operable to determine according to a predetermined process set-up condition status such as presence or absence of an abnormality, lifetime and others of the machine component, which is associated with such sensor, in reference to an output signal from the associated sensor; and
said control means being operable to collect results of determination performed by each of the determining units.
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Accused Products
Abstract
A system for monitoring statuses such as presence or absence of abnormality and lifetime of a machine component such as, for example, a bearing having rolling elements includes a plurality of determining units 4 each connected with a plurality of sensors 3, and a control means 5 connected with the determining units 4. Each sensor is disposed on the machine component 1 of the associated rolling bearing for detecting an influence signal resulting from passage of the rolling element induced in the machine component 1. Each determining unit 4 determines according a process set-up condition the presence or absence of an abnormality, lifetime and others of the machine component 1 associated with the sensor 3 in reference to an output signal from such sensor 3. The control means 5 collects a result of determination performed by each determining unit 4. In this way, with a simplified structure, monitoring can be achieved at a low cost, precisely and efficiently.
90 Citations
47 Claims
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1. A machine component monitoring system for monitoring machine components used in a machine system provided with a plurality of such machine components each having rolling elements, which system comprises:
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control means;
a plurality of determining units each connected with a plurality of sensors, said determining units being connected with the control means, each of the sensors being arranged on the respective machine component for detecting an influence signal resulting from passage of the rolling elements induced in the machine component, each of the determining units being operable to determine according to a predetermined process set-up condition status such as presence or absence of an abnormality, lifetime and others of the machine component, which is associated with such sensor, in reference to an output signal from the associated sensor; and
said control means being operable to collect results of determination performed by each of the determining units. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A combined sensor and determiner unit for use in a machine system including a plurality of machine components each having rolling elements, which unit comprises:
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a plurality of sensors each arranged on the respective machine component for detecting an influence signal resulting from passage of the rolling element induced in the respective machine component; and
a plurality of determining units each including a filtering means for extracting a component of a defect signal from a sensor waveform that is an output signal from the sensor connected with such determining unit, and a determining section operable to compare the detected defect signal with a predefined range to determine presence or absence of an abnormality, said filtering means extracting the defect signal component by repeatedly performing at predetermined interval a process of retrieving a predetermined time range data from a data stream of the sensor waveform and determining a difference between maximum and minimum values of the retrieved data.
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18. A determining unit which comprises:
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a selector for sequentially changing one of a plurality of input channels to which analog sensor waveform signals are inputted, an A/D converting means for performing an A/D conversion on an output from the selector;
a first memory for storing the waveform signal which has been A/D converted;
a processor for waveform processing the waveform signal, stored in the first memory, according to a process set-up condition and performing a predetermined determination from a result of waveform processing according to a predefined range;
a second memory for storing the result of the waveform processing and the result of determination process performed by the processor; and
an interface section for transmitting contents stored in the first and second memories in response to a request command applied thereto from an external circuit.
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19. A machine component monitoring and diagnosing system for monitoring and diagnosing a machine component having rolling elements, which system comprises:
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a sensor for detecting a factor associated with lifetime of a machine component incorporated in a machine used at a business establishment of a client corporation;
a sensor information transmitting means for transmitting information detected by the sensor or information processed with such information to a line;
a sensor information receiving means installed at a business establishment of a manufacturing and selling corporation, which manufactures and sells the machine component, for receiving the sensor information transmitted through the line;
a diagnosing means for diagnosing a state of the lifetime of the machine component in reference to the sensor information received by the sensor information receiving means;
a diagnosis result information transmitting means for transmitting diagnosis result information given by the diagnosing means to the line; and
a diagnosis result information receiving means installed at the business establishment of the client corporation for receiving the diagnosis result information transmitted through the line. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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20. A machine component monitoring and diagnosing system for monitoring and diagnosing a machine component having rolling elements, which system comprises:
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a sensor information receiving means installed at a business establishment of a manufacturing and selling corporation manufacturing and selling the machine component for receiving through a line information detected by a sensor for detecting a factor associated with lifetime of the machine component incorporated in a machine used by a client corporation located at a remote place;
a diagnosing means for diagnosing a state of the lifetime of the machine component in reference to the sensor information received by sensor information receiving means; and
a diagnosis result information transmitting means for transmitting information on a result of diagnosis by the diagnosing means to the line.
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30. A machine component monitoring, diagnosing and selling system which comprises:
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a sensor for detecting a factor associated with lifetime of a machine component incorporated in a machine used at a business establishment of a client corporation;
a sensor information transmitting means for transmitting information detected by the sensor or information processed with such information to a line;
a sensor information receiving means installed at a business establishment of a manufacturing and selling corporation, which manufactures and sells the machine component, for receiving the sensor information transmitted through the line;
a diagnosing means for diagnosing a state of the lifetime of the machine component in reference to the sensor information received by the sensor information receiving means;
a merchandise information adding means for generating merchandise information associated with the machine component to be diagnosed according diagnosis result information of the diagnosing means and for adding this merchandise information to the diagnosis result information;
a diagnosis result information transmitting means for transmitting to the line merchandise information added diagnosis result information which is the diagnosis result information added with the merchandise information; and
a diagnosis result information receiving means installed at the business establishment of the client corporation for receiving the merchandise information added diagnosis result information transmitted through the line. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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31. A machine component monitoring, diagnosing and selling system for monitoring, diagnosing and selling a machine component having rolling elements, which system comprises:
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a sensor information receiving means installed at a business establishment of a manufacturing and selling corporation, which manufactures and sells the machine component, for receiving through a line information detected by a sensor for detecting a factor associated with lifetime of a machine component incorporated in a machine used at a business establishment of a client corporation at a remote location;
a diagnosing means for diagnosing a state of the lifetime of the machine component in reference to the sensor information received by the sensor information receiving means;
a merchandise information adding means for generating merchandise information associated with the machine component to be diagnosed according diagnosis result information of the diagnosing means and for adding this merchandise information to the diagnosis result information; and
a diagnosis result information transmitting means for transmitting to the line merchandise information added diagnosis result information which is the diagnosis result information added with the merchandise information.
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46. A machine component monitoring and diagnosing method for monitoring and diagnosing a machine component having rolling elements through a computer network, which method comprises, at a business establishment of a corporation manufacturing and selling the machine component:
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a process of receiving through a line information detected by a sensor for detecting a factor associated with lifetime of a machine component, incorporated in a machine used by a client corporation at a remote location;
a process of diagnosing a status of lifetime of the machine component based on the received sensor information by using an examining section; and
a process of transmitting diagnosis result information, obtained as a result of diagnosis, to the client corporation through the line.
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47. A machine component monitoring and diagnosing method for monitoring, diagnosing and selling a machine component having rolling elements, which method comprises, at a business establishment of a corporation manufacturing and selling the machine component:
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a process of receiving through a line information detected by a sensor for detecting a factor associated with lifetime of a machine component, incorporated in a machine used by a client corporation at a remote location, at a business establishment of a corporation manufacturing and selling the machine component;
a process of diagnosing a status of lifetime of the machine component based on the received sensor information by using an examining section; and
a process of generating merchandise information associated with the machine component to be diagnosed in dependence on diagnosis result information obtained as a result of the diagnosis and transmitting the diagnosis result information together with the merchandise information to the client corporation through the line.
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Specification