CA2404625A1 - System for acquiring data from a facility and method - Google Patents
System for acquiring data from a facility and method Download PDFInfo
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- CA2404625A1 CA2404625A1 CA002404625A CA2404625A CA2404625A1 CA 2404625 A1 CA2404625 A1 CA 2404625A1 CA 002404625 A CA002404625 A CA 002404625A CA 2404625 A CA2404625 A CA 2404625A CA 2404625 A1 CA2404625 A1 CA 2404625A1
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Abstract
A field instrument and system for obtaining pressure, flow and temperature data from a facility. The field instrument includes an enclosure having an opening therein. An integrated analog sensor is sealingly contained within the opening. The field instrumen t further contains an external analog sensor. An analog to digital converter converts the analog signals to digital readings. An external digital sensor is also provided, with the digital outp ut- being communicated through a second opening within the enclosure. A control member that receive s, stores and processes the digital readings is positioned within the enclosure. A communication module is included to transmit the digital readings to a remote computer. The communication module allows for two way communication between the field instrument and remote computer. The remote computer may be a server that allows for access by many users. The communication module also allows for locally accessing the digital readings via a serial port to a local terminal.
Claims (29)
1. A method of measuring a reading at a remote location on a hydrocarbon process line, the method comprising:
at said remote location -collecting a first analog reading with a first sensor;
-converting the first analog reading to a first digital reading;
-collecting the first digital reading from said first sensor in a control means for receiving, processing, and storing the digital readings, wherein said control means is located at said remote location;
-storing the digital readings at the remote location until the digital readings can be transfered to a modem communications means for communicating digital data, wherein said modem communications means is located at said remote location;
-converting the digital readings to a digital packet data in the modem communications means;
-transmitting the digital packet data with the modem communications means;
at a central location remote from the remote location -receiving the digital packet data at a database engine located at the central location;
-providing a web server interface in the database engine;
-linking the database engine to the Internet;
-providing a user computer, said user computer having a web browser;
-communicating to the Internet;
-accessing the database engine;
-monitoring the measurements from a user computer.
at said remote location -collecting a first analog reading with a first sensor;
-converting the first analog reading to a first digital reading;
-collecting the first digital reading from said first sensor in a control means for receiving, processing, and storing the digital readings, wherein said control means is located at said remote location;
-storing the digital readings at the remote location until the digital readings can be transfered to a modem communications means for communicating digital data, wherein said modem communications means is located at said remote location;
-converting the digital readings to a digital packet data in the modem communications means;
-transmitting the digital packet data with the modem communications means;
at a central location remote from the remote location -receiving the digital packet data at a database engine located at the central location;
-providing a web server interface in the database engine;
-linking the database engine to the Internet;
-providing a user computer, said user computer having a web browser;
-communicating to the Internet;
-accessing the database engine;
-monitoring the measurements from a user computer.
2. The method of claim 1 further comprising:
-sending a signal from the user computer to the database engine, and wherein the signal corresponds to a command to poll said pressure sensor;
-transmitting the signal from the database engine at the central location to the modem communication means at the remote location;
-receiving the signal in the modem communication means.
-sending a signal from the user computer to the database engine, and wherein the signal corresponds to a command to poll said pressure sensor;
-transmitting the signal from the database engine at the central location to the modem communication means at the remote location;
-receiving the signal in the modem communication means.
3. The method of claim 1 wherein said measured reading is pressure, said first sensor is an analog pressure sensor and said first analog reading is a first analog pressure reading.
4. The method of claim 3 further comprising:
-collecting an analog temperature reading with an external analog temperature sensor;
-converting the analog temperature reading to a digital temperature reading;
-transmitting the digital temperature reading to said control means.
-collecting an analog temperature reading with an external analog temperature sensor;
-converting the analog temperature reading to a digital temperature reading;
-transmitting the digital temperature reading to said control means.
5. The method of claim 4 further comprising:
-locally accessing the storage means from a local terminal at the remote location;
-downloading the digital readings into the local terminal.
-locally accessing the storage means from a local terminal at the remote location;
-downloading the digital readings into the local terminal.
6. A system for transmitting a pressure reading obtained from a remote oil and gas facility, said oil and gas facility having a pressure, the system comprising:
at least one field instrument located at said remote oil and gas facility including -a digital sensor means, for producing a representative first digital output reading;
-an analog pressure sensor means, for producing a representative analog pressure output reading;
-means, electrically connected to said analog pressure sensor means, for converting the analog pressure output reading into a second digital output reading;
-means, for receiving and storing said first and second digital output readings;
-means, electrically connected to said receiving and storing means, for locally accessing said first and second digital output readings;
-means, for transmitting said first and second digital output readings;
-database means located at a central location distant from the remote oil and gas facility, operatively associated with said transmitting means, for storing said first and second digital output readings in a plurality of data tables, said database means including a data manager means for receiving, retrieving and communicating said digital pressure output readings.
at least one field instrument located at said remote oil and gas facility including -a digital sensor means, for producing a representative first digital output reading;
-an analog pressure sensor means, for producing a representative analog pressure output reading;
-means, electrically connected to said analog pressure sensor means, for converting the analog pressure output reading into a second digital output reading;
-means, for receiving and storing said first and second digital output readings;
-means, electrically connected to said receiving and storing means, for locally accessing said first and second digital output readings;
-means, for transmitting said first and second digital output readings;
-database means located at a central location distant from the remote oil and gas facility, operatively associated with said transmitting means, for storing said first and second digital output readings in a plurality of data tables, said database means including a data manager means for receiving, retrieving and communicating said digital pressure output readings.
7. The system of claim 6 wherein said means for transmitting said first and second digital output readings further comprises means for authenticating, encrypting and compressing transmission of data from the remote location to the central location.
8. The system of claim 7 wherein:
said means for transmitting said first and second digital output readings comprises a first part at the central location and a second part at the remote oil and gas facility;
the means for transmitting said first and second digital output readings authenticate, encrypt and compress/de-compress messages comprising data, including said plurality of data, commands and responding to and from the remote facility and the central location.
said means for transmitting said first and second digital output readings comprises a first part at the central location and a second part at the remote oil and gas facility;
the means for transmitting said first and second digital output readings authenticate, encrypt and compress/de-compress messages comprising data, including said plurality of data, commands and responding to and from the remote facility and the central location.
9. The system of claim 8 further comprising:
-user interface means, operatively associated with said database means, for allowing access to said plurality of data tables.
-user interface means, operatively associated with said database means, for allowing access to said plurality of data tables.
10. The system of claim 9 further comprising a user computer having means for accessing said user interface means.
11. The system of claim 9 further comprises an analog temperature sensor producing an analog temperature signal; an adapter connected to said temperature sensor, said adapter being received within said second opening; and means, electrically connected to said temperature sensor, for converting said analog temperature signal to a third digital signal.
12. The system of claim 11 wherein said transmitting means comprising a communications module means for transmitting said digital output readings over networks selected from the group consisting of the Internet, wireless, public network, private network, PSTN and satellite.
13. The system of claim 12 further comprising: a user computer, and wherein said user computer has loaded thereon a web browser capable of reading said plurality of data tables and a communications link from said user computer to the Internet; and, encrypting means, operatively associated with said transmitting means, for encrypting said digital output readings being transmitted to said user computer.
14. The system of claim 13 further comprising:
-alarm means, operatively connected to the receiving and storing means, for generating an alarm condition when an acquired first, second and third digital readings exceeds a predetermined minimum or maximum digital reading limit and communicating the alarm condition to a local computer and/or external server independent of a polling request from the external server.
-alarm means, operatively connected to the receiving and storing means, for generating an alarm condition when an acquired first, second and third digital readings exceeds a predetermined minimum or maximum digital reading limit and communicating the alarm condition to a local computer and/or external server independent of a polling request from the external server.
15. A process for collecting, transmitting and monitoring sensed characteristics from a remotely located facility, the process comprising:
at said remotely located facility, -sensing a sensed reading indicative of a characteristic of said facility by way of an analog sensor;
-converting the analog sensor reading to a first digital reading;
-collecting the first digital reading;
-collecting a second digital reading with an external digital sensor;
-transmitting the second digital reading to said control means;
-transferring the digital readings to a control means for receiving, processing, and storing the digital readings in a storage means;
-transferring the digital readings in said storage means to a modem communications means for communicating digital data, wherein said modem communications means is located at said remotely located facility;
-converting the digital readings to a digital packet data in the modem communications means;
-transmitting the digital packet data with the modem communications means;
-receiving the digital packet data at a data base engine at a central location remote from the remote location located at the central location.
at said remotely located facility, -sensing a sensed reading indicative of a characteristic of said facility by way of an analog sensor;
-converting the analog sensor reading to a first digital reading;
-collecting the first digital reading;
-collecting a second digital reading with an external digital sensor;
-transmitting the second digital reading to said control means;
-transferring the digital readings to a control means for receiving, processing, and storing the digital readings in a storage means;
-transferring the digital readings in said storage means to a modem communications means for communicating digital data, wherein said modem communications means is located at said remotely located facility;
-converting the digital readings to a digital packet data in the modem communications means;
-transmitting the digital packet data with the modem communications means;
-receiving the digital packet data at a data base engine at a central location remote from the remote location located at the central location.
16. The process as defined in claim 15 further comprising:
-at said located facility periodically attempting to transmit the reading through a network to the data base engine at the central location; and -storing the digital readings at the storage means located at the remote location until the readings can be transmitted to the data base engine at the central location over the network and received by the data base engine at the central location.
-at said located facility periodically attempting to transmit the reading through a network to the data base engine at the central location; and -storing the digital readings at the storage means located at the remote location until the readings can be transmitted to the data base engine at the central location over the network and received by the data base engine at the central location.
17. The process of claim 16 wherein said data base engine contains a data manager and the method further comprises:
-storing the digital readings in a table format.
-storing the digital readings in a table format.
18. The process of claim 17 wherein said database engine further contains a central server interface and the process further comprises:
-providing a central server communicated with said database engine via the central server interface;
-accessing the central server from a user computer;
-requesting the digital readings from the user computer;
-transmitting the digital readings to the central server;
-transmitting the digital readings to the user computer.
-providing a central server communicated with said database engine via the central server interface;
-accessing the central server from a user computer;
-requesting the digital readings from the user computer;
-transmitting the digital readings to the central server;
-transmitting the digital readings to the user computer.
19. The process of claim 18 further comprising:
-measuring said digital readings;
-setting a predetermined digital reading minimum limit and maximum limit;
-exceeding said predetermined digital reading minimum or maximum limit;
-recording the exceeding of said predetermined digital data reading limit;
-producing an exception signal in response to said recording;
-sending said exception signal to the database.
-measuring said digital readings;
-setting a predetermined digital reading minimum limit and maximum limit;
-exceeding said predetermined digital reading minimum or maximum limit;
-recording the exceeding of said predetermined digital data reading limit;
-producing an exception signal in response to said recording;
-sending said exception signal to the database.
20. The process of claim 19 further comprising:
-transmitting said exception signal to the central server;
-transmitting said exception to the user computer.
-transmitting said exception signal to the central server;
-transmitting said exception to the user computer.
21. The process of claim 20 further comprising:
-sending said digital readings to a web server;
-sending said digital readings data to the Internet;
-accessing the Internet with a web browser from a user computer.
-sending said digital readings to a web server;
-sending said digital readings data to the Internet;
-accessing the Internet with a web browser from a user computer.
22. The process of claim 21 further comprising: correcting said digital readings for temperature effect corruption by mapping the digital readings to a temperature value in an iterative fashion; and, back calculating to an adjusted pressure and an adjusted temperature.
23. The process of claim 15 wherein the control means has electrically connected thereto serial communication means for transmitting the processed digital readings, and the process further comprising:
-providing a user computer having a direct link to said serial communication means;
-connecting to the control means from the user computer with the direct link;
-transmitting the digital reading to the user computer.
-providing a user computer having a direct link to said serial communication means;
-connecting to the control means from the user computer with the direct link;
-transmitting the digital reading to the user computer.
24. A process for sensing a characteristic at a remote location and transferring data indicative of the sensed characteristic to a data base located at a central location, remote from the remote location, said process comprising:
at the remote location:
sensing the characteristic at the remote location;
producing a digital output reading indicative of the sensed characteristic;
storing the digital output reading in memory located at the remote location;
at the central location:
storing at a data base data received from the remote location;
wherein the digital output readings are stored in the memory until the digital output readings can be transmitted to and received by a communication unit at the central location; and wherein a processor at the remote location determines whether or not data can be transmitted to and received by the communication unit at the central location, and, causes the data to be sent to the communication unit at the central location when the processor determines that the communication unit at the central location can receive the data.
at the remote location:
sensing the characteristic at the remote location;
producing a digital output reading indicative of the sensed characteristic;
storing the digital output reading in memory located at the remote location;
at the central location:
storing at a data base data received from the remote location;
wherein the digital output readings are stored in the memory until the digital output readings can be transmitted to and received by a communication unit at the central location; and wherein a processor at the remote location determines whether or not data can be transmitted to and received by the communication unit at the central location, and, causes the data to be sent to the communication unit at the central location when the processor determines that the communication unit at the central location can receive the data.
25. The process as defined in claim 24 wherein an application protocol performs at least one of the functions of encryption, compression and decompression, and authentication of messages sent and received between the remote location and the central location.
26. The process as defined in claim 24 wherein the remote location is located at an oil and gas facility, and the characteristic being sensed includes pressure and temperature at the oil and gas facility.
27. The process as defined in claim 26 wherein before the processor at the remote location causes the data to be sent to the communication unit at the central location the processor processes the digital output signals indicative of pressure to correct for temperature errors based on the digital output signals indicative of temperature, and, causes the processed digital output signals to be transmitted to the communication unit at the central location.
28. The process as defined in claim 24 wherein before -wherein before the processor at the remote location causes the data to be sent to the communication unit at the central location the processor processes the digital output signals indicative of the characteristic and causes the processed digital output signals to be transmitted.
29. The process as defined in claim 24 wherein:
upon initial connection of the processor at the remote location to the communication unit at the central location, the processor sends and receives information to the communication unit to facilitate operation of the system 30. A device for communicating pressure information from a well facility at a remote location to a data base engine at a central location, the device comprising:
-a pressure line connected to said facility, said pressure line communicating a pressure from the facility;
-an internal analog pressure sensor means, connected to said pressure line, for sensing the pressure and generating an analog reading that is converted to a first digital pressure output reading in response to the pressure;
-an external digital pressure sensor means, for producing a second digital pressure output reading;
-control means, for receiving, storing and retrieving said digital pressure output readings;
-first serial communication means for communicating said second digital pressure output reading to said control means;
-a liquid crystal display readout means, operatively communicated with said control means, for displaying said digital pressure output readings;
-means, operatively connected to said control means, for transmitting said digital pressure output readings stored in said control means to a data base engine located at the central location, and wherein said transmitting means includes an antenna member connected to a second adaptor means for sealingly receiving said antenna member within a third opening in said enclosure;
-power means, positioned within said chamber, for supplying a power source to said pressure sensor means, said digital means, said LCD readout, said control means, and said transmitting means;
-second serial communication means, electrically connected to said control means, for communicating said digital pressure output readings to a local terminal;
-storage means for storing said reading at the remote location;
-wherein the control means monitors the means for transmitting the readings such that, if the readings can not be transmitted to the data base engine located at the central location, the control means stores the readings at the storage means until the readings can be transmitted.
31. The device of claim 30 wherein said database engine comprises:
-a database means, operatively associated with said database engine, for storing said digital pressure output reading in a table format;
-a data manager means for retrieving said digital pressure output reading and communication interface means for communicating said digital pressure output reading, and wherein the device further comprises:
-user computer for accessing said digital pressure output reading from said data manager means.
32. The device of claim 31 further comprising:
-an external analog temperature sensor, said temperature sensor producing an analog signal;
-converter means, operatively connected to said temperature sensor, for converting said analog signal to a digital temperature signal reading;
-and wherein said control means further receives, stores and retrieves said digital temperature signal reading.
33. The device of claim 32 further comprising:
-processing means, operatively associated with said control means, for correcting temperature errors in the digital pressure output readings due to temperature dependency at the remote location and transmitting the corrected pressure output readings to the data base engine at the central location.
34. The device of claim 32 further comprising:
-process exceptions means, operatively associated with said control means, for sending an alarm at a predetermined digital pressure reading and communicating an exception to the user computer.
35. The device of claim 33 further comprising:
-data encryption means, operatively associated with the transmitting means, for encrypting the output data to the user computer.
36. The device of claim 31 wherein said transmitting means comprises:
-a modem connectable to a hardwired land line telephone network.
37. The device of claim 31 wherein said transmitting means is selected from the group consisting of:
-a telephone modem connectable to a circuit switched cellular means;
-a terrestrial cellular digital packet data modem means; or, -a digital satellite packet data modem means.
38. A system for sensing a characteristic at at least one remote location and transferring data indicative of the sensed characteristic to a data base located at a central location, remote from the remote location, said system comprising:
at the remote location:
-a sensor for producing a digital output reading indicative of the sensed characteristic;
-memory for storing the digital output reading;
-a first communication unit for sending and receiving information to and from the remote location and the central location;
-a processor for controlling the first communication unit to send and receive information, controlling the sensor to produce the digital output reading and storing the digital output reading in the memory;
at the central location:
-a second communication unit for sending and receiving information to and from the first communication unit at the remote location;
-a data base for storing data received from the remote location;
-wherein the processor causes the digital output readings to be stored in the memory until the digital output reading can be transmitted to and received by the second communication unit; and -wherein the processor determines whether or not data can be transmitted to and received by the second communication unit at the central location, and, controls the first communication unit to send data corresponding to the digital output reading when the second communication unit can receive the data.
39. The system as defined in claim 38 further comprising:
-an application protocol associated with the first communication unit and the second communication unit for facilitating transfer of messages comprising the data and commands, to and from the remote location and the central location.
40. The system as defined in claim 39 wherein the application protocol performs at least one of the functions of encryption, compression and decompression, and authentication of the messages sent and received between the remote location and the central location.
41. The system as defined in claim 38 further comprising:
-a field instrument unit at the remote location, said field instrument unit housing the sensor, the memory, the first communication unit and the processor.
42. The system as defined in claim 41 further comprising:
-a plurality of field instrument units, each field instrument unit located at a separate remote location geographically separated from each other for sensing characteristics at each of the remote locations and transferring data indicative of the sensed characteristics of the corresponding remote location to the data base located at the central location.
43. The system as defined in claim 42 where the processor of each of the plurality of field instrument units can process the digital output readings stored in the corresponding memory of the field instrument unit; and -wherein the processor of at least one of the plurality of field instrument units processes the digital output readings stored in its corresponding memory and transmits to the central location processed digital output readings.
44. The system as defined in claim 42 wherein each of the plurality of field units is located at an oil and gas facility which may be geographically separated.
45. The system as defined in claim 44 wherein the sensor of each field instrument unit senses pressure and temperature at the oil and gas facility where the field instrument unit is located; and -wherein the processor of at least one of the plurality of a field instrument units processes the digital output signals indicative of the pressure to correct for temperature errors based on the digital output signals indicative of temperature and transmits to the central location processed digital output readings.
46. The system as defined in claims 38 wherein:
upon initial connection between the first communication unit and at the second communication unit, the processor sends and receives information to the second communication unit to facilitate operation of the system 47. The system as defined in 38 wherein:
after each interruption in the transmission of data to, or reception of data by, the second communication unit, the processor sends information to the second communication unit indicating that transmission of data has now resumed and transmits data corresponding to the digital output readings which have been stored in the memory.
48. The system as defined in claim 42 wherein the plurality of field instrument units are arranged in a star topology with the database of the central location located at the center of the star topology.
49. The system as defined in claim 48 wherein the field instrument units and processors located at the central location interchangeable act as servers and clients in the star topology.
50. The system as defined in claim 39 wherein the first communication unit and the second communication unit transmit and receive messages using the application protocol over one or more networks selected from the group consisting of the Internet, Public Switch Telecommunication Network, Cellular Digital Packet Data and Satellite networks.
51. The process as defined in claim 24 further comprising:
after each interruption in the reception of data by the communication unit at the central location, automatically sending from the remote location to the communication unit at the central location information indicating that transmission of data has been resumed and sending data corresponding to the digital output readings which have been stored in the memory to the communication unit at the central location.
upon initial connection of the processor at the remote location to the communication unit at the central location, the processor sends and receives information to the communication unit to facilitate operation of the system 30. A device for communicating pressure information from a well facility at a remote location to a data base engine at a central location, the device comprising:
-a pressure line connected to said facility, said pressure line communicating a pressure from the facility;
-an internal analog pressure sensor means, connected to said pressure line, for sensing the pressure and generating an analog reading that is converted to a first digital pressure output reading in response to the pressure;
-an external digital pressure sensor means, for producing a second digital pressure output reading;
-control means, for receiving, storing and retrieving said digital pressure output readings;
-first serial communication means for communicating said second digital pressure output reading to said control means;
-a liquid crystal display readout means, operatively communicated with said control means, for displaying said digital pressure output readings;
-means, operatively connected to said control means, for transmitting said digital pressure output readings stored in said control means to a data base engine located at the central location, and wherein said transmitting means includes an antenna member connected to a second adaptor means for sealingly receiving said antenna member within a third opening in said enclosure;
-power means, positioned within said chamber, for supplying a power source to said pressure sensor means, said digital means, said LCD readout, said control means, and said transmitting means;
-second serial communication means, electrically connected to said control means, for communicating said digital pressure output readings to a local terminal;
-storage means for storing said reading at the remote location;
-wherein the control means monitors the means for transmitting the readings such that, if the readings can not be transmitted to the data base engine located at the central location, the control means stores the readings at the storage means until the readings can be transmitted.
31. The device of claim 30 wherein said database engine comprises:
-a database means, operatively associated with said database engine, for storing said digital pressure output reading in a table format;
-a data manager means for retrieving said digital pressure output reading and communication interface means for communicating said digital pressure output reading, and wherein the device further comprises:
-user computer for accessing said digital pressure output reading from said data manager means.
32. The device of claim 31 further comprising:
-an external analog temperature sensor, said temperature sensor producing an analog signal;
-converter means, operatively connected to said temperature sensor, for converting said analog signal to a digital temperature signal reading;
-and wherein said control means further receives, stores and retrieves said digital temperature signal reading.
33. The device of claim 32 further comprising:
-processing means, operatively associated with said control means, for correcting temperature errors in the digital pressure output readings due to temperature dependency at the remote location and transmitting the corrected pressure output readings to the data base engine at the central location.
34. The device of claim 32 further comprising:
-process exceptions means, operatively associated with said control means, for sending an alarm at a predetermined digital pressure reading and communicating an exception to the user computer.
35. The device of claim 33 further comprising:
-data encryption means, operatively associated with the transmitting means, for encrypting the output data to the user computer.
36. The device of claim 31 wherein said transmitting means comprises:
-a modem connectable to a hardwired land line telephone network.
37. The device of claim 31 wherein said transmitting means is selected from the group consisting of:
-a telephone modem connectable to a circuit switched cellular means;
-a terrestrial cellular digital packet data modem means; or, -a digital satellite packet data modem means.
38. A system for sensing a characteristic at at least one remote location and transferring data indicative of the sensed characteristic to a data base located at a central location, remote from the remote location, said system comprising:
at the remote location:
-a sensor for producing a digital output reading indicative of the sensed characteristic;
-memory for storing the digital output reading;
-a first communication unit for sending and receiving information to and from the remote location and the central location;
-a processor for controlling the first communication unit to send and receive information, controlling the sensor to produce the digital output reading and storing the digital output reading in the memory;
at the central location:
-a second communication unit for sending and receiving information to and from the first communication unit at the remote location;
-a data base for storing data received from the remote location;
-wherein the processor causes the digital output readings to be stored in the memory until the digital output reading can be transmitted to and received by the second communication unit; and -wherein the processor determines whether or not data can be transmitted to and received by the second communication unit at the central location, and, controls the first communication unit to send data corresponding to the digital output reading when the second communication unit can receive the data.
39. The system as defined in claim 38 further comprising:
-an application protocol associated with the first communication unit and the second communication unit for facilitating transfer of messages comprising the data and commands, to and from the remote location and the central location.
40. The system as defined in claim 39 wherein the application protocol performs at least one of the functions of encryption, compression and decompression, and authentication of the messages sent and received between the remote location and the central location.
41. The system as defined in claim 38 further comprising:
-a field instrument unit at the remote location, said field instrument unit housing the sensor, the memory, the first communication unit and the processor.
42. The system as defined in claim 41 further comprising:
-a plurality of field instrument units, each field instrument unit located at a separate remote location geographically separated from each other for sensing characteristics at each of the remote locations and transferring data indicative of the sensed characteristics of the corresponding remote location to the data base located at the central location.
43. The system as defined in claim 42 where the processor of each of the plurality of field instrument units can process the digital output readings stored in the corresponding memory of the field instrument unit; and -wherein the processor of at least one of the plurality of field instrument units processes the digital output readings stored in its corresponding memory and transmits to the central location processed digital output readings.
44. The system as defined in claim 42 wherein each of the plurality of field units is located at an oil and gas facility which may be geographically separated.
45. The system as defined in claim 44 wherein the sensor of each field instrument unit senses pressure and temperature at the oil and gas facility where the field instrument unit is located; and -wherein the processor of at least one of the plurality of a field instrument units processes the digital output signals indicative of the pressure to correct for temperature errors based on the digital output signals indicative of temperature and transmits to the central location processed digital output readings.
46. The system as defined in claims 38 wherein:
upon initial connection between the first communication unit and at the second communication unit, the processor sends and receives information to the second communication unit to facilitate operation of the system 47. The system as defined in 38 wherein:
after each interruption in the transmission of data to, or reception of data by, the second communication unit, the processor sends information to the second communication unit indicating that transmission of data has now resumed and transmits data corresponding to the digital output readings which have been stored in the memory.
48. The system as defined in claim 42 wherein the plurality of field instrument units are arranged in a star topology with the database of the central location located at the center of the star topology.
49. The system as defined in claim 48 wherein the field instrument units and processors located at the central location interchangeable act as servers and clients in the star topology.
50. The system as defined in claim 39 wherein the first communication unit and the second communication unit transmit and receive messages using the application protocol over one or more networks selected from the group consisting of the Internet, Public Switch Telecommunication Network, Cellular Digital Packet Data and Satellite networks.
51. The process as defined in claim 24 further comprising:
after each interruption in the reception of data by the communication unit at the central location, automatically sending from the remote location to the communication unit at the central location information indicating that transmission of data has been resumed and sending data corresponding to the digital output readings which have been stored in the memory to the communication unit at the central location.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48241500A | 2000-01-13 | 2000-01-13 | |
| US09/482,415 | 2000-01-13 | ||
| CA002314573A CA2314573C (en) | 2000-01-13 | 2000-07-20 | System for acquiring data from a facility and method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002314573A Division CA2314573C (en) | 2000-01-13 | 2000-07-20 | System for acquiring data from a facility and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2404625A1 true CA2404625A1 (en) | 2001-07-13 |
| CA2404625C CA2404625C (en) | 2010-01-26 |
Family
ID=25681980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2404625A Expired - Lifetime CA2404625C (en) | 2000-01-13 | 2000-07-20 | System for acquiring data from a facility and method |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2404625C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462939A (en) * | 2017-09-18 | 2017-12-12 | 内蒙古自治区大气探测技术保障中心 | Ground location equipment remote technology supports live instrument and meteorological detection system |
| CN112983380A (en) * | 2021-04-16 | 2021-06-18 | 中国矿业大学 | Digital hydraulic fracturing monitoring equipment |
| CN113691582A (en) * | 2021-07-07 | 2021-11-23 | 国网山东省电力公司 | Automatic acquisition system of handing-over test data based on bluetooth |
| CN115689506A (en) * | 2022-11-07 | 2023-02-03 | 中国船舶重工集团公司第七一九研究所 | Cross-system physical interface management method in three-dimensional design of ship |
-
2000
- 2000-07-20 CA CA2404625A patent/CA2404625C/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462939A (en) * | 2017-09-18 | 2017-12-12 | 内蒙古自治区大气探测技术保障中心 | Ground location equipment remote technology supports live instrument and meteorological detection system |
| CN112983380A (en) * | 2021-04-16 | 2021-06-18 | 中国矿业大学 | Digital hydraulic fracturing monitoring equipment |
| CN113691582A (en) * | 2021-07-07 | 2021-11-23 | 国网山东省电力公司 | Automatic acquisition system of handing-over test data based on bluetooth |
| CN115689506A (en) * | 2022-11-07 | 2023-02-03 | 中国船舶重工集团公司第七一九研究所 | Cross-system physical interface management method in three-dimensional design of ship |
| CN115689506B (en) * | 2022-11-07 | 2023-10-20 | 中国船舶重工集团公司第七一九研究所 | Cross-system physical interface management method in ship three-dimensional design |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2404625C (en) | 2010-01-26 |
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