Configuring a Simulator
Configuring a SimulatorThis tutorial describes how to configure a Simulator using Oracle
Sensor Edge Server. Approximately
35 minutes
This
tutorial covers the following topics: 
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Oracle
Sensor Edge Server provides companies that want to adopt Radio Frequency Identification
(RFID) technology with a comprehensive set of capabilities to capture, manage,
analyze, access, and respond to data from different sensors such as RFID, location,
and temperature. On the basis of Oracle's mature, proven technology (including
Oracle Database 10g, Oracle Application Server 10g, Oracle Enterprise
Manager 10g, and Oracle E-Business Suite 11i),
Oracle sensor-based services enable companies to quickly and easily integrate
sensor-based information into their enterprise systems to gain near real-time
supply chain visibility and leverage this insight to optimize business process. The
primary goal of the Sensor Edge Server is to transform raw data from the physical
world into meaningful business events in your Enterprise Information System. This
can be achieved in a closed loop, directly on the Sensor Edge Server, or by sending
events to an Enterprise Information System. Access to the raw data and additional
contextual and system information is always available through the data repository. In
this tutorial, you plug in a simulator driver in the driver framework to simulate
the RFID reader. As a result of this integration, you see the events generated
by the Sensor Edge Server and the simulation driver. Back
to Topic List Before starting this tutorial, you should:
| 1. | Have
access to or have installed Oracle Application Server 10g Release 3 (10.1.3).
You can download Oracle Application Server 10g 10.1.3 software from here. | | 2. | Have
access to or have installed Oracle Sensor Edge Server 10.1.3. You can download
Oracle Sensor Edge Server software from here. |
Back to Topic List
Oracle
Sensor Edge Server collects sensor information, filters it, and performs local
sensor event processing. Oracle Sensor Edge Server then securely and reliably
dispatches event data back to the central applications or databases. You perform
Oracle Sensor Edge Server administration, configuration, and monitoring using
the SES console. The Edge Simulator Driver generates events
to simulate a real device. You use the Edge Simulator Driver to test configurations
and deployment designs. You can also use the simulator for internal functional
testing to see how events are processed throughout the system. The Edge Simulator
Driver emulates a regular driver. Except that instead of connecting to a physical
device to read events, it takes parameters from an input file as instructions
on when to generate false events. This simulator driver is very useful for testing
and to see how events are processed throughout the system.
| 1. | Open your Browser and enter the following
URL: http://<hostname>.<domain>:8888/edge Log
in as oc4jadmin/<oc4jadmin password you specified during installation>.
Click Login.
| | 2. | Creating
a device group is the first step to connecting the Oracle Sensor Edge Server instance
to devices and filters. Once you create a device group, you populate it with devices
(the instances of the available drivers) and then attach filter instances to the
individual devices (or to the entire device group).
To create a new device
group:
Click Groups.
| | 3. | In the
Group Management page, enter Streams in the Group Name field. Click Create
New Group. | | 4. | The
Configure Group page appears for the new device group. Click Add new device
to create a device for the device group. | | 5. | The
Search and Select: Add new device page appears, listing the drivers in the repository.
Select Edge Simulator Driver. Click Select. | | 6. | The
Configure Group page reappears, listing the device in the Devices section. Click
Edge Simulator Driver1. | | 7. | The
Device Configuration page appears, displaying the parameters specific to the driver. | | 8. | The
Edge Simulator Driver generates events to simulate a real device. The Edge Simulator
Driver behaves the same way as any driver, except that instead of connecting to
a physical device to read events, it takes parameters from an input file such
as Simulation.xml. The input file provides instructions about when to generate
events.
Scroll down to the Parameters section. The simulator has one parameter
that you need to set, which is the file name of the input file. Enter the path
for the Simulation.xml file in the Value field of Filename parameter. Click
Save Changes. | | 9. | A
sample Simulation.xml file looks like this: <EdgeEventSimulation> <EventList
repeat=’1’> <Event> <type>100</type>
<subtype>1</subtype>
<id>03ffff045679</id>
<data>No
Data</data>
<deviceName>My Device</deviceName>
</Event> ......... .......... ...........
</EventList>
</EdgeEventSimulation> The
<EventList> element defines a loop. This element is also the main
block that groups all the other instructions together. The <EventList> element
has one attribute, repeat, which must be present to control looping. The value
for repeat must be a decimal number from 0 to LONG_MAX. The <EventInterval>
element instructs the simulator to pause for a certain period of time before proceeding. The
<type> element represents the number value that corresponds to the type
of event. The <subtype> element represents the number value
for the subtype. For example, the subtype value corresponds with a General Instruction
Event, which is an event sent by the application or device to instruct a specific
device to perform an operation. The value 1 turns on the device. The
<id> element represents a text value that identifies a tag (that is,
a read or target) to an event instruction. One of the <id> values for a
tag is 03ffff045679. The <data> element is optional. The
<deviceName> element represents the name of the device or application
that generates the event. The <deviceName> enables the simulator to appear
as if it is another device when generating events. | | 10. | When
you make any change in an Oracle Sensor Edge Server instance, the SES Console
displays a message notifying you to restart the Oracle Sensor Edge Server instance
using OracleAS Enterprise Manager. Click Enterprise Manager link in the
message. | | 11. | The
login page for OracleAS Enterprise Manager appears. Enter the OC4J user name
and password. Click Login. | | 12. | Click
the home link in the Cluster Topology page. | | 13. | Click
Applications.
| | 14. | Select edge
and click Restart. | | 15. | Click
Yes in the Confirmation page. | | 16. | Oracle
Sensor Edge Server instance has been restarted successfully. Click
Logout to exit from Oracle Enterprise Manager. |
Back
to Topic List Monitor
the Event Data
| 1. | Verify that your OC4J server is running.
If OC4J Server is not running, start the OC4J Server using the following command.
Switch to the command prompt, change directory to <edgeserver_home>ORACLE_HOME\opmn\bin
and issue the command: opmnctl stopall opmnctl
startall Open your browser, and enter the following URL: http://<host
name>.<domain>:<port>/edge For
example, http://localhost:8888/edge. Log in as oc4jadmin with the OC4J
administrator password that you specified during installation. Click Login. | | 2. |
The SES console enables you to know the condition of Oracle Sensor Edge Server
from the event data that is displayed on the Monitor Events and Event Reports
tabbed pages. Click the Monitor Events tab to view the data currently in
the queue. The inbound and outbound event data includes:
Type: Text
representation of the event type
Description: A text representation
of the event subtype
Device Name: The name of the device that generated
the event
Data: The payload of the event
Time: The time that
the event was generated If no event has been generated, you will not view any event data
under Inbound Queue and Outbound Queue. |
Back
to Topic List In
this lesson, you learned how to:
 | Plug
in a simulator to simulate an RFID device | Back
to Topic List To
learn more about Oracle Sensor Edge Server on Windows, you can refer to:
|
Additional OBEs on the OTN Web site. |
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Topic List
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