Method and system for converting between protocols

• US 9,894,424 B2
• Filed: 03/14/2014
• Issued: 02/13/2018
• Est. Priority Date: 03/14/2014
• Status: Active Grant

• Current Assignee: Christopher & Weisberg, P.A., Teledyne Detcon, Inc. (Teledyne Technologies Incorporated)
• Original Assignee: Scott Technologies, Inc. (3M Company)
• Inventors: Propst, Jr., Edward R, DeBlasio, Nicholas Anthony
• Primary Examiner(s): ALAM, MIRZA F
• Application Number:
  US15/125,390
• Publication Number:
  US 20170099527A1
• Time in Patent Office: 1,432 Days
• CPC Class Codes: G01N 33/0004 Gaseous mixtures, e.g. polluted air gaseous biological material G01N33/497; exhaust gas of internal combustion engines G01M15/102
• CPC Class Codes: G08C 23/04 using light waves, e.g. infrared
• CPC Class Codes: H04Q 2209/43 using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth or ZigBee
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]

Abstract

In an embodiment a protocol converter module for use with a gas transmitter assembly having a gas sensor, a controller, and a detector transceiver housed within an intrinsically safe detector housing is provided. The controller module comprises a converter housing having a converter mount configured to securely mount the converter module to the detector housing. A controller module includes a first converter transceiver, within the converter housing, configured to bi-directionally exchange data with the detector transceiver utilizing a first protocol. The controller module also includes a second converter transceiver, also within the converter housing, configured to bi-directionally exchange data with an external device using a second protocol. The controller module also include, an electronic converter, also within the converter housing, coupled to the first and second converter transceivers and configured to convert the data between the first and second protocols.

Claims

1. A protocol converter module for use with a gas detector assembly having gas sensor, controller, and a detector transceiver housed within an intrinsically safe detector housing, the converter module comprising:

a converter housing having a converter mount configured to securely mount the converter module to the detector housing, the converter housing including a mating interface having a transparent converter window that is configured to align with a transparent detector window provided in the detector housing, the first converter transceiver positioned to align with the converter window such that, when the converter housing is mounted on the detector housing, the first converter transceiver forms line of sight communication with the detector transceiver;

a first converter transceiver, within the converter housing, configured to bi-directionally exchange data with the detector transceiver utilizing a first protocol;

a second converter transceiver, within the converter housing, configured to bi-directionally exchange data with an external device utilizing a second protocol; and

an electronic converter, within the converter housing, coupled to the first and second converter transceivers and configured to convert the data between the first and second protocols, the electronic converter configured to allow data collected from an external user interface on the external device to be sent to the gas detector assembly.

2. The converter module of claim 1, wherein the first converter transceiver is an infrared (IR) transceiver configured to communicate through line of sight with an IR transceiver in the detector housing and the second converter transceiver is an input/output (I/O) transceiver configured to communicate serially with the external device.

3. The converter module of claim 1, wherein the first protocol utilizes infrared light to communicate data to and from the detector transceiver.

4. The converter module of claim 1, wherein the first protocol represents an Infrared Data Association (IrDA) protocol.

5. The converter module of claim 1, wherein the second protocol represents a serial highway addressable remote transducer (HART) protocol.

6. The converter module of claim 1, wherein the converter mount is positioned in a fixed location relative to the first converter transceiver such that the first converter transceiver is located at a known position relative to the detector transceiver when the converter housing is securely mounted on the detector housing.

7. The converter module of claim 1, wherein the second protocol represents a wireless radio frequency (RF) link for wireless communication with an external HART communicator device.

8. The converter module of claim 1, further comprising an electronically intrinsically safe I/O connector, provided on the converter housing, configured to couple the external device to the second converter transceiver.

9. The converter module of claim 1, further comprising a first magnetically actuated switch held within the converter housing, wherein the first magnetically actuated switch is configured to instruct the electronic converter to transmit predetermined operating instructions via the first converter transceiver to the detector when the external device triggers the first magnetically actuated to enter a select state.

10. The converter module of claim 1, further comprising memory, within the converter housing, configured to download a log file from the detector assembly, the log file including at least one of a history of sensor readings, gas concentrations in a surrounding area over a predetermined period of time and information regarding operation states and status of the detector assembly over a predetermined period of time.

11. The converter module of claim 10, further comprising a second magnetically actuated switch within the converter housing, wherein the second magnetically actuated switch is configured to instruct the electronic converter to download the log file in the memory when the external device triggers the second magnetically actuated switch to enter a select state.

12. The converter module of claim 1, wherein the converter mount is detachable from the detector housing.

13. The converter module of claim 1, wherein the electronic converter further includes a microprocessor configured to convert the data between the first and second protocols.

14. The converter module of claim 1, further comprising an intrinsically safe power module (ISPM) held within the converter housing and is configured to provide electrical energy to the electronic converter, the ISPS having at least one of a low-dropout voltage regulator, a fuse, or a battery.

15. A method of bi-directionally exchanging data with a gas detector assembly and an external device comprising:

securely mounting a protocol converter module having a converter housing to the gas detector assembly using a converter mount, the converter housing including a mating interface having a transparent converter window and securely mounting the protocol converter to the gas detector assembly includes aligning the transparent converter window with a transparent detector window provided in the detector housing such that the first converter transceiver forms line of sight communication with the detector transceiver;

bi-directionally exchanging data with a detector transceiver housed in the gas detector assembly using a first converter transceiver housed in the converter housing utilizing a first protocol;

bi-directionally exchanging data with the external device using a second converter transceiver housed in the converter housing utilizing a second protocol;

converting the data between the first and second protocols using an electronic converter communicably coupled to the first and second converter transceivers; and

allowing data collected from an external user interface on the external device to be sent to the gas detector assembly.

16. The method of claim 15, wherein the first protocol represents an Infrared Data Association (IrDA) protocol.

17. The method of claim 15, wherein the second protocol represents a serial highway addressable remote transducer (HART) protocol.

18. The method of claim 15, wherein the second protocol represents a wireless radio frequency (RF) link for wireless communication with the external device.

19. The method of claim 15, wherein bi-directionally exchanging data with the detector transceiver further comprises downloading a log file from the detector transceiver to a memory module housed within the converter module, the log file including at least one of a history of sensor readings, gas concentrations in a surrounding area over a predetermined period of time or information regarding operation states and status of the detector assembly over a predetermined period of time.

20. The method of claim 15, wherein bi-directionally exchanging data with detector transceiver further comprises transmitting predetermined operating instructions to the detector assembly, the predetermined operating instructions including at least one of logging start instructions, logging stop instructions, logging interval instructions, or logging duration.

21. The method of claim 15, wherein the mounting of the protocol converter to the gas detector assembly includes positioning the converter mount in a fixed location relative to the first converter transceiver such that the first converter transceiver is located at a known position relative to the detector transceiver when the converter housing is securely mounted to the detector housing.

22. The method of claim 15, further comprising actuating a first magnetically actuated switch held within the converter housing to instruct the electronic converter to transmit predetermined operating instructions via the first converter transceiver to the detector when the external device triggers the first magnetically actuated switch to enter a select state, the predetermined operating instructions including at least one of logging start instructions, logging stop instructions, logging interval instructions, or logging duration.

23. The method of claim 15, further comprising actuating a second magnetically actuate switch held within the converter housing to instruct the electronic converter to download a log file from the detector assembly, the log file including at least one of a history of sensor readings, gas concentrations in a surrounding area over a predetermined period of time or information regarding operation states and status of the detector assembly over a predetermined period of time.