Detecting wear through use of information-transmitting devices

• US 7,367,496 B2
• Filed: 06/06/2005
• Issued: 05/06/2008
• Est. Priority Date: 06/06/2005
• Status: Expired due to Fees

• Current Assignee: International Business Machines SA (International Business Machines Corporation)
• Original Assignee: International Business Machines Corporation
• Inventors: Karstens, Christopher K.
• Primary Examiner(s): Le; Thien Minh
• Application Number:
  US11/145,841
• Publication Number:
  US 20060273148A1
• Time in Patent Office: 1,065 Days
• Field of Search: 235/385, 235/383, 235/382, 235/382.5, 340/572.1, 340/572.8, 340/457.4, 340/10.1, 340/442, 340/435, 340/539.1, 340/539.12
• US Class Current: 235/382
• CPC Class Codes: B60C 11/24 Wear-indicating arrangements
• CPC Class Codes: F16D 65/12 Discs; Drums for disc brakes
• CPC Class Codes: F16D 66/021 using electrical detection or indication means

Abstract

Detecting wear through use of information-transmitting devices. At least one information-transmitting wireless device is provided for each of one or more wear positions of an item, wherein each of the devices is adapted for transmitting information to a reader, such that each of the devices can transmit information usable for detecting wear of the item as the item wears. When using a plurality of devices for a particular wear position, the devices may be stacked or placed in a depth-wise, end-to-end arrangement. As another alternative, a single device having a plurality of separable areas may be provided for each of one or more wear positions. As yet another alternative, a single device may be provided for each of one or more wear positions such that its failure to transmit indicates wear at the corresponding wear position. An information-transmitting device may become damaged or missing, due to item wear, and an RFID reader may therefore be unable to scan (i.e., receive data from) the device.

Claims

1. A method of detecting wear through use of information-transmitting devices, comprising:

providing at least one information-transmitting wireless device for each of one or more wear positions of an item, wherein each of the devices is adapted for transmitting information to a reader, such that each of the devices can transmit information usable for detecting wear of the item as the item wears; and

providing at least one information-transmitting wireless device for each of one or more wear positions of a second item, wherein each of the devices provided for the second item is adapted for transmitting information to the reader, such that each of the devices provided for the second item can transmit information usable for detecting wear of the second item as the second item wears,

wherein the information transmitted by the devices provided for the item and the information transmitted by the devices provided for the second item is usable for detecting whether the item and the second item are wearing in concert at an expected rate.

2. A method of detecting wear through use of information-transmitting devices, comprising:

providing at least one information-transmitting wireless device for each of one or more wear positions of an item, wherein each of the devices is adapted for transmitting information to a reader, such that each of the devices can transmit information usable for detecting wear of the item as the item wears and wherein the transmitted information for each of the wear positions is usable for determining wear patterns of the item.

3. The method according to claim 2, wherein the transmitted information for each of the wear positions comprises a percentage of wear of the item at the wear position.

4. The method according to claim 2, wherein the transmitted information for each of the wear positions is also, or alternatively, usable for determining a rate of wear of the item.

5. The method according to claim 2, wherein a plurality of the devices are positioned such that wear is not detected if a first number of the plurality of the devices transmits the information to the reader, but is detected if at least one more than the first number of the devices transmits the information to the reader.

6. The method according to claim 2, further comprising the step of using the information transmitted to the reader, upon determining that the transmitted information indicates at least one abnormal wear pattern, to alter characteristics of the item.

7. The method according to claim 2, wherein:

at least one of the devices provided for a particular wear position functions as a base tag; and

at least one corresponding device is provided, for the device functioning as a base tag, wherein each of the at least one corresponding devices functions as a child tag of the base tag for the particular wear position.

8. A method of detecting wear through use of information-transmitting devices, comprising:

providing at least one information-transmitting wireless device for each of one or more wear positions of an item, wherein each of the devices is adapted for transmitting information to a reader, such that each of the devices can transmit information usable for detecting wear of the item as the item wears, wherein;

a plurality of devices is provided, for one or more selected ones of the wear positions, in a depth-wise, end-to-end arrangement; and

at least one more-deeply-stacked one of the plurality of devices in the depth-wise, end-to-end arrangement corresponds to a decreased amount of remaining usable material of the item at the wear position.