Apparatus for monitoring sensor information from diffeerent types of sources

• US 5,553,269 A
• Filed: 09/17/1991
• Issued: 09/03/1996
• Est. Priority Date: 09/19/1990
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Nunes, Antonio C. D.
• Primary Examiner(s): Pan, Daniel H.
• Application Number:
  US07/761,180
• Time in Patent Office: 1,813 Days
• Field of Search: 395/800, 395/200, 395/375, 395/275, 395/500, 395/775, 395/700, 395/725, 395/550, 395/250, 364/DIG. 1, 364/DIG. 2, 364/470, 364/468, 364/431.04, 364/180, 364/550, 364/516, 364/131, 364/138, 364/140, 364/141, 379/255, 371/29.1, 371/16.4, 371/22.3
• US Class Current: 703/21
• CPC Class Codes: G05B 19/042 using digital processors G05B19/05 takes precedence
• CPC Class Codes: G05B 2219/25454 Retrofitting

Abstract

An apparatus receives real time input of sensor information from a plurality of different sources with different interfaces, converts the format of the sensor information into a format compatible with a computer, and transmits the converted sensor information to the computer. The apparatus comprises a plurality of collectors respectively coupled to the sensors for receiving the sensor information. A scan generator is coupled to the collectors and selects each of the collectors for input of the respective sensor information en route to the computer. The scan generator provides timing signals to control the input of the sensor information from each of the collectors. A converter receives the sensor information from the collectors and convert the formats of the sensor information to a format compatible with the computer. Each of the collectors transmits the respective sensor information to the converter based on timing signals provided by the scan generator but receives the sensor information from the respective sensors independent of the scan generator timing signals. Thus, the sensor input is not limited in either format or timing. After the converted sensor information is input to the computer, a server program which is executing within the computer and has knowledge of the original format of the sensor information from each source and the nature of the conversion, converts the converted sensor information back into the original format. Then, a user application program which is also executing within the computer receives the sensor information in its original format which is the expected format.

Claims

1. Apparatus for input of digital sensor information from a plurality of sources to a computer for processing, each of said sources having a digital interface format and a clock for transmission of the digital sensor information, the clocks being asynchronous relative to each other and the formats being different than each other, said apparatus comprising:

a plurality of collector means for receiving digital sensor information from the plurality of sources, respectively, in the respective formats of the sources and with timing based on the respective clocks of the sources;

scan generator means, coupled to said plurality of collector means and having a clock which is different than and asynchronous to the clock(s) of said sources, for selecting each of said collector means;

converter means, coupled to the clock of said scan generator means and coupled to receive said sensor information from said plurality of collector means, for receiving said sensor information from each of said collector means when selected by said scan generator means and converting the format of said sensor information to a format compatible with said computer; and

wherein

each of said plurality of collector means includes means for transmitting the respective sensor information to said converter means based on timing signals provided by the clock of said scan generator means.

2. Apparatus as set forth in claim 1 further comprising interface means for coupling said converter means to said computer, whereby the converted sensor information is supplied to said computer for processing, said interface means including means for connecting to a keyboard and routing keyboard inputs to said computer substantially unaffected by said interface means.

3. Apparatus as set forth in claim 1 wherein each of said collector means includes a clock to time input of sensor information from the respective source and means for receiving timing signals from said respective source control timing of input of sensor information from said respective source.

4. Apparatus as set forth in claim 3 wherein said collector means includes means for receiving an external signal to control speed of said clock.

5. Apparatus as set forth in claim 1 wherein each of said collector means includes means for synchronizing with said scan generator means after receipt of the respective sensor information far transmitting the respective sensor information en route to said converter means.

6. Apparatus as set forth in claim 1 wherein said computer includes means for reconverting the converted sensor information into an original format of said sensor information.

7. Apparatus as set forth in claim 1 wherein said scan generator means selects each of said collector means based on the clock of said scan generator means.

8. Apparatus as set forth in claim 1 wherein each of said collector means sends its sensor information to said converter means serially and said converter means sends said sensor information to said computer in parallel bytes.