Wireless sensor, rolling bearing with sensor, management apparatus and monitoring system
First Claim
1. A wireless sensor for detecting normal condition or abnormality in one of a rolling bearing, a ball screw and a linear guide, comprising:
- a detection unit for detecting a subject of detection;
a data processing unit for processing data detected by said detection unit; and
a communication unit for transmitting, by wireless, detection data processed by said processing unit, whereinsaid detection unit includes at least one of a vibration sensor for detecting vibration, a temperature sensor for detecting temperature, and a rotation speed sensor for detecting rotation speed, andsignals output from said detection unit are multiplexed by a multichannel system or a time-sharing system.
1 Assignment
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Accused Products
Abstract
The wireless sensor adds identification information peculiar to respective sensor modules to detection data of vibration, temperature, and so on, detected by the sensor modules respectively. The wireless sensor transmits the detection data with the identification information as a signal through a communication unit by radio waves. On the other hand, the management apparatus receiving the signal classifies and files the detection data on the basis of the identification information included in the signal. Then, the monitoring system is designed to make the management apparatus manage a plurality of wireless sensors attached to movable shafts of processing machines or the like.
144 Citations
62 Claims
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1. A wireless sensor for detecting normal condition or abnormality in one of a rolling bearing, a ball screw and a linear guide, comprising:
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a detection unit for detecting a subject of detection; a data processing unit for processing data detected by said detection unit; and a communication unit for transmitting, by wireless, detection data processed by said processing unit, wherein said detection unit includes at least one of a vibration sensor for detecting vibration, a temperature sensor for detecting temperature, and a rotation speed sensor for detecting rotation speed, and signals output from said detection unit are multiplexed by a multichannel system or a time-sharing system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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11. A management apparatus, comprising:
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a communication tool for receiving a signal transmitted via wireless with multiplexing by a multichannel system or a time-sharing system from a wireless sensor or a bearing unit having a detection unit for detecting a subject of detection including at least one of a vibration sensor for detecting vibration, a temperature sensor for detecting temperature, and a rotation speed sensor for detecting rotation speed; and a signal processing unit for managing said received signal on a basis of identification information peculiar to at least one of said detection unit, said wireless sensor and said bearing unit, said identification information being included in said signal. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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30. A rolling bearing with sensor, comprising:
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an outer ring and an inner ring which can rotate relatively to each other, one of said outer and inner rings being a stationary ring while the other is a rotating ring; a plurality of rolling elements incorporated between said outer ring and said inner ring; and a detection sensor unit provided in at least one of said stationary ring, a member attached to said stationary ring, said rotating ring and a member attached to said rotating ring, said detection sensor unit detecting a subject of detection and including at least one of a vibration sensor for detecting vibration, a temperature sensor for detecting temperature, and a rotation speed sensor for detecting rotation speed; wherein said detection sensor unit has a communication function for transmitting data to outside by wireless, and further wherein a signal output from said detection sensor unit is multiplexed by a multichannel system or a time-sharing system. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. A bearing unit with sensor comprising:
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a rolling bearing having at least an outer ring, an inner ring and a plurality of rolling elements, at least one of said outer and inner rings being a rotating ring while the other is a stationary ring; an integral-type sensor having at least one of a vibration sensor for detecting vibration, a temperature sensor for detecting temperature, and a rotation speed sensor for detecting rotation speed, and a single sensor holder for including said at least one sensor, said integral-type sensor being attached to one of said stationary ring and a member attached to said stationary ring; and at least one relay unit provided in the vicinity of one of said integral-type sensor and said bearing, said relay unit transmitting via wireless an output signal from said integral-type sensor to a control unit provided outside said bearing unit, wherein said output signal has been multiplexed by a multichannel system or a time-sharing system. - View Dependent Claims (56, 57, 58, 59, 60)
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61. A wireless sensor for detecting normal condition or abnormality in one of a rolling bearing, a ball screw and a linear guide, comprising:
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a detection unit for detecting a subject of detection; a data processing unit for processing data detected by said detection unit; and a communication unit for transmitting, by wireless, detection data processed by said processing unit, wherein said detection unit includes at least one of a vibration sensor for detecting vibration, a temperature sensor for detecting temperature, and a rotation speed sensor for detecting rotation speed, and said communication unit transmits, by wireless, said detection data processed by said processing unit together with identification information peculiar to said detection unit. - View Dependent Claims (62)
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Specification