The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2009
Filed:
May. 16, 2006
Robert Diederichs, Edmonton, CA;
Thomas Michael Madden, Duncan, OK (US);
Jerry Yee, Edmonton, CA;
Cameron International Corporation, Houston, TX (US);
Abstract
The invention is a networked system of devices positioned in a hazardous environment to monitor or control process conditions. The devices include sensors such as pressure measurement elements and controls such as variable voltage outputs. The sensors detect process conditions and the controls manipulate process conditions, and they are monitored and controlled by slave devices having, generally a microprocessor and having associated memory to receive and record the sensor/control data. The network includes master devices; each master device may be associated with one or more slaved devices and associated sensors, where the master device communicates to its associated slave devices through a digital communication bus. The master device can automatically detect its associated slave devices and detect the communication and data characteristics of the slave devices. The master may also set parameters for detected slave devices, such as needed for computations performed by the master (using its own microprocessor) using data received from the slave device(s). The master device receives slave device data by requesting or polling the data from the slave device over the digital communication bus.