Antennas and detection of WSN

Hello

I'm trying to observe the activity of the network of the Starter Kit WSN using a WiSpy 2.4 x (http://www.metageek.net/products/wi-spy-24x).

What I do now is I have restart the gateway of MAX (I tried channel 11-24) and then begin to record the activity of the network using the wispy graphical user interface. I didn't however notice any important data on one of the channels. Is probably caused by the interference of the networks wi - fi in the background?

The purpose of my test is to use different antennas to measure their effectiveness (signal strength, power consumption). But I can't see the WSN using WiSpy. Do you have any other suggestions on how to perform this test? If you don't know how to do this using the WiSpy as well, I would like to know that as well.

Thanks for your time.

Hey Sravan,.

I'll answer each of your questions below:

  1. That is right.  GW' router' router' 7 terminals distributed in four different directions would be an example of a configuration of 36 knots.
  2. The limit 3 hop is a defined specification OR to ensure the integrity of the data on the network.
  3. Spec'd sample intervals are what we recommend for large networks (~ 15 + knots).  It is possible to go faster on a smaller network.
  4. You are assuming that there is a heartbeat.  Every 61 seconds sleep, an end node will wake up and return the blink of an eye at the entry door.  That heartbeat contains the external supply of the quality of the connection, the battery voltage,?, router Mesh? and ViDeployed?.   For the nodes that have a sampling interval< 61="" seconds,="" this="" heartbeat="" is="" never="">
  5. When an end node is dormant, node does nothing.  The radio is powered down, so that it will not be able to receive all incoming traffic.  If the gateway that has something to send to an end node, it will wait until it receives a message from this node before sending it.
  6. The radio is not certified to use these channels, as some countries do not allow them.
  7. Routers are still, as they must be able to receive messages at any time.  This isn't a standard zigbee, rather a standard of implementation implementation of this radio.  Sleeping routers introduce new challenges in the network that are very difficult to deal with today's technology.
  8. I don't know exactly your issue.  Most of power is burned keeping the radio in, then nodes will see much longer battery life than the routers times (such as routers only last a few days on the batteries).

Let me know if you need any clarification.

Kevin

Tags: NI Products

Similar Questions

  • An Application incompatible mobile partners and detected but does not always

    Acknowledge troubleshooting see the report are fix the incompatible program-Mobile Partner (broadband pilot-Huawei E1552) but still does not resolve the application respective icon still showed her suffer from inconsistent failure. Please help. TQVM

    Hello

    1. what operating system do you use?

    2. what exactly do you mean by ' Application Incompatible mobile partners and detected but does not always '?

    3. What is the exact problem you are facing the computer?

    Provide more information on the issue to you help again.

    You can also visit the link of the article of Microsoft that will guide you on how to ask questions below.

    Suggestions for a question on the help forums

    http://support.Microsoft.com/kb/555375

  • I get startup repair screen when I try to boot my laptop from dell inspirion windows 7, I run the scan and detects any errors. When I ran repair usb key received the error 0x400110020000100A

    I get startup repair screen when I try to boot my laptop Dell Inspiron windows 7, I run the scan and detects any errors. So, I tried to use a USB repair for a laptop Dell Latitude Windows 7 pro and I still can't the computer to start. Tried to restore to the factory settings, can not. I have no image, backups, all missing, restore points?

    After that I tried to launch the USB repair I got 0x400110020000100A error code and I received error (0x8007027E) indicating the device will not start without a reboot.

    Anyone know how to fix this?

    Any advice would be greatly appreciated. I'm not computer illiterate, but am not pro either. Just use them not program them or even understand all languages!

    ____________________________________________________________________________________________________________

    Dell Inspiron laptop about 4-5 years.

    Running windows 7 Home Edition.

    Does not start little matter what I tried.

    If I remember correctly, I looked in MS-DOS mode and noticed that it said something like "x: win...» "that seemed strange to me because I thought that it should say"c: victory... "but as I said I am not a computer wiz so if anyone can help me, I would appreciate it.

    I'm about to rip the hair off my head with my laptop. My latitude was blue planned, surprisingly I fixed it (don't ask how, you couldn't tell). Then my dell inspiron would not start right after my dell latitude fell out of my truck and landed on the sidewalk, wanted to kill the person, the screen is broken. I can use it but it is very difficult, see a mosquito net and not perfectly clear, works well. lol someone knows somewhere or that would install a new screen for a reasonable price? I live in the Boston area.

    Back to the laptop won't start not, when I ran repair USB key received the error 0x400110020000100A

    Hello

    Thank you for the update on the issue. I appreciate your time and effort in resolving this issue.

    You can try the following methods and check if it helps.

    Method 1:

    You can use the Bootrec.exe tool in the Windows recovery environment (Windows RE) to troubleshoot and repair the following items in Windows Vista or Windows 7:

    • A master boot record (MBR)
    • A boot sector
    • A Boot Configuration data (BCD) store

    Note: When you are troubleshooting startup issues by using the Windows RE, you should first try the Startup Repair option in the System Recovery Options dialog box. If the Startup Repair option does not resolve the problem, or if you must troubleshoot more steps manually, use the Bootrec.exe

    Use the Bootrec.exe tool in the Windows recovery environment to troubleshoot and repair startup issues in Windows

    http://support.Microsoft.com/kb/927392

    If the problem persists, proceed to method 2.

    Method 2:

    Please follow these steps:

    1. Tool command prompt open in the mode of the Windows recovery environment .
    2. You will see X:\Sources
    3. Type chkdsk c:\ at the flashing prompt to launch the utility Chkdsk. replace c:\ with the letter of the drive that you want to run the Chkdsk utility. If the hard drive is d:\, then type that instead.
    4. After the "chkdsk c:\. "insert \f command to fix errors on the disk volume or the \r to recover bad sectors and then press ENTER.
    5. Restart the computer once the chkdsk command has completed.

    Note: Running chkdsk on the drive if bad sectors are found on the hard drive, it attempts to repair this sector, if all available on which data may be lost.

    For more information: Please refer to the section of the additional If you can not boot into Windows at all stages in the following link.

    Resolve stop (blue screen) error in Windows 7

    http://Windows.Microsoft.com/en-in/Windows7/resolving-stop-blue-screen-errors-in-Windows-7

    Hope this information is useful. If the problem still persists, please post back for further assistance, we will be happy to help you.

  • Guarantee for the antennas and power injectors

    Anyone know what guarantees have antennas and power injectors? I need this information for AIR-ANT1728, AIR-PWRINJ3 = and AIR-PWRINJ4 =.

    Concerning

    Luis

    The antennas and the injectores are RELATED to the number of Pat.  If your WAP is no longer under warranty, while accessories are too.

  • EX6100 thin antenna and positioning

    Can someone tell me if the two antennas on the EX6100 are for specific purposes, such as 2.4 GHz vs 5 GHz, or router communication vs. communication device? It would help to position the antennas as well as the device itself.

    Hello siriusbs

    They are both of those things to receive the signal from the router and broadcasting 2.4 and 5 ghz wifi so I would like to try your best to position the Extender on the edge of your routers wifi signal but if she still is a good signal.

    DarrenM

  • Satellite L655-13U and detection of windows VGA max

    My laptop is Toshiba Satellite L655-13U and vga card does not Max the windows to detect 64-bit only from 1654
    I want to be the vga is max how?

    Hey Buddy

    Sorry, but your ad is quite understandable.
    Be so kind and try to explain it with other words.

    What is the problem with your laptop? Maybe display resolution?

  • Satellite A60 antennas and wireless - LAN

    Hi all

    Please could someone tell me where I can get a map of wireless LAN mini pci for my A60?
    In addition, please could you tell me if the A60 built in antennas?

    Thank you very much
    Steve

    Hello

    As I know a few models A60 come with and without wireless network card. First of all, it will be interesting to know the detailed model description (A60 - xxx).

    Just FYI: I discovered that the Satellite A60-762 comes with the Atheros WLAN card.

    Good bye

  • Read data series and detect the break in series at the same time

    I need to communicate with a serial device that sends messages back, but also sends a break, break, break, break series combo that I need to listen to. I've never worked with before series breaks but the only VI I found which seems to detect pending VISA on event VI with the series Break parameter. I'm not sure that understand how I could detect a break in the series, but also to be reading and writing messages at the same time in the meantime. Isn't this possible?

    If you use multiple loops, I think you can do.  You use 1 loop to check to see if there is data and 1 loop looking for breaks series.  Then use queues, authors of notifications or events to anyone who needs to know what you have experienced.

  • Press the orange antenna, and now I can't connect to my wireless router.

    Here's my question:

    There is this button next to the power button on my laptop which has a glowing orange antenna icon on it. He was always orange (which I don't mind) and never responded to any pressure that I had done in the past... In other words, until today. I was talking to a friend of mine while we were playing an MMO, and I told her how I have this little button that does nothing. They said "Must be a deception." (which, in hindsight was kinda funny) and then * boop *, I can't connect to the internet without connecting an ethernet cable.

    I have a Compaq Presario CQ50 - 210US Notebook PC and an Atheros AR5006X wireless network adapter in my laptop.

    I tried everything: of a hard reset, to a system restore (which in fact didn't even touch the wireless issue or one of my favorites in Chrome), trying to disable/enable/upgrade to update / restore my wireless card. No rollback option was available. First thing I did was to try to hold the button in the same way that I had the first time (I thought that the problem with a power button had to press on it, silly me.)

    My Solution:

    Sometimes, the solution is as simple as to be soft and pressing this button antenna for but half a second. And then, above all, be patient!

  • Reinvest a presentation Manager and detect any changes in size

    Hello

    I am trying to create a user interface that mixes elements I draw myself with native widgets and I do this by substituting the painting and drawing to an image in the background before drawing the fields themselves.

    To position the fields, I created my own Manager and position fields in absolute position based on my own component positions. For the base case works very well...

    When I type in a field, it grows, I do not detect this growth so I can not ebb the user interface. How can I detect a change to the default size of the field? I followed the field muddy/Sales status but that doesn't seem to help here is a picture of my test case, white in the middle is a native field and find it me difficult to follow its growth in real time:

    When I start the native UI scroll fields remain in place, I tried calling invalidateLayout, but it throws an exception? How to trigger the IU blackberry to call sublayout again?

    That's what I mean fields are now on top of my drawn text box:

    Thank you

    Shai.

    Yes, I noticed that you implement LWUIT. Two big thumbs up!

    First of all - don't spend just a new Manager (...) as a parameter in your full screen (I hope you meant that when you wrote FullCanvas).  Create a handler that is personalized with its own sublayout() and do the work there. In this way, you will be able to instantiate this Manager custom rather than writing the same code over and over again.

    Second - substitute object it inside the Manager, not the screen.  Not necessary, but once again - for the best control.

    Third - It's weird that sublayout of your Manager is not called automatically, but you can force it anyway:

    // in your MyClass:
    protected void sublayout(int width, int height) {
      layoutDelegate(width, height);
    }
    

    Have not tested but it should work.  This way, you should be able to rearrange and re - position your fields in the same manager that has all the knowledge, he needs.

    One problem remains, though - how are you going to partially show these fields when they slide to the edge of the screen?  I hope that you can set negative positions for them. Documentation for the manager class specifies all IllegalArgumentException on negative x and y in setPositionChild, so you might be lucky .

  • Antenna and 1260AP issues

    Hello

    Is the AIR-ANT5135SDW-compatible with the APs 1260 R? If so, I was counting on the use of 3 antennas 2.4 ghz and 3, 5.8 ghz antennas for each access point.

    Also, can I order 1260 s as standalone APs or are they only like CAPWAPP?

    Thank you, Pat.

    As long as the corresponding connectors and frequency, you can use.

    The system configuration required

    This antenna is designed for use indoors with a Cisco Aironet 2.4 GHz radio device that uses a RP - TNC connector.

    Thank you

    Scott Fella

    Sent from my iPhone

  • DVD player, not visible and detected

    Hello

    I am using windows 7 home 64 bit on HP Pavilion dv4-3031tx laptop. A few months ago I changed my DVD rom HP service center drive as the engraving option did not work. After changing, it was working fine. Now, the drive is not visible when I opened my computer. I installed all the drivers again from the recovery manager supplied by HP recovery disk, but it is still the same. Strange thing is when I insert my recovery disc and restart my boot of seleting for laptop to DVD option, can detect the disc and the approaches for installing the OS. If possible, I want to slove this problem rather than reinstall windows recovery disk I have tons of programs installed in HD. Please give an effective solution. I'm really worried.

    Thanks in advance.

    It's a pretty common problem and there is a Microsoft Autofix to this:

    http://support.Microsoft.com/kb/982116

    You can run the automatic setting, but I had more chance to do manual registry change which is also described on the link.

    This is called the problem of upper/lower case filters and is the very low level driver built-in to Windows.

  • Sustainable customer, reconnect and detection of interest

    Hello

    Given the following scenario:

    1. sustainable customer

    2. interest of the registry on the server side

    3. sustainable lost client connectivity for more than the sustainable-client-delay option

    4 connection is restored and GemFire sustainable client reconnects automatically (GF client reconnects internally only)

    What is the way (s) to detect a client sustainability had already passed on the cache server?

    Thank you

    It's true, which covers only the case when the client restarts. Otherwise, in case when there is just a loss of connection, the problem is that there may be multiple connections and redundancy of the queue, so the loss of a single connection does not necessarily mean that the connection to the queue is lost. What is needed here is a callback API for connection/disconnection of queue events that could trigger an event when the connection to the queue is completely lost, as well as when there is a connection to the queue.

    There are some internal APIs that may be useful, but you will need to do a lot of accounting to yourself - it would be quite complicated.

    Another option is to implement a queue 'pinger' yourself, in your client, regularly with a special object in the region, supported by the queue, which would cause the server to respond with a response object in the queue on which the customer would have registered interest.

  • Need to create a barrier wall and detection for maze game

    Hi, I have a maze of basis I created the work in Photoshop and brought Flash to PNG format.  My problem is that my car object passes through the wall.  Could someone help me to fix this.  I tried for hours to solve this problem, but in vain.  I hope someone out there has some tips on how to make it work.  Thanks in advance.

    Iz

    You are welcome.

  • Plan SPM of locking and detection of new plans

    I searched Oracle documentation and wanted to confirm my interpretation on some issues of SPM:

    Enabling SPM (giving OPTIMIZER_USE_SQL_PLAN_BASELINES TRUE) does for a database and have captured previously SQL plans, freeze all plans for reruns of the captured SQL statements?


    Auto capture plan must always run to see if the optimizer is to come up with new plans for your basic SQL lines? If it was OFF, it seems that new plans for statements in your baseline would be always ignored and you'd be ignorant of new plans.

    Thank you

    Richard

    Enabling SPM (giving OPTIMIZER_USE_SQL_PLAN_BASELINES TRUE) does for a database and have captured previously SQL plans, freeze all plans for reruns of the captured SQL statements?

    Yes, depending on how you propose change your plans

    Auto capture plan must always run to see if the optimizer is to come up with new plans for your basic SQL lines?

    N ° below.

    Create a simple table:

    SQL> select * from v$version;
    
    BANNER
    --------------------------------------------------------------------------------
    Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
    PL/SQL Release 11.2.0.3.0 - Production
    CORE    11.2.0.3.0      Production
    TNS for Linux: Version 11.2.0.3.0 - Production
    NLSRTL Version 11.2.0.3.0 - Production
    
    SQL> create table t1
      2  as
      3  select rownum col1
      4  from dual
      5  connect by rownum <= 10;
    
    Table created.
    
    SQL>
    SQL> create index i1 on t1 (col1);
    
    Index created.
    
    SQL> 
    

    Impose a strange datum plane (so that the optimizer will find an obvious alternative):

    SQL> alter session set optimizer_use_sql_plan_baselines = false;
    
    Session altered.
    
    SQL> alter session set optimizer_capture_sql_plan_baselines = false;
    
    Session altered.
    
    SQL> select * from t1 where col1 = 1;
    
          COL1
    ----------
             1
    
    SQL> select * from table(dbms_xplan.display_cursor());
    
    PLAN_TABLE_OUTPUT
    -----------------------------------------------------------------------------------------
    SQL_ID  81qv4d7vkb571, child number 0
    -------------------------------------
    select * from t1 where col1 = 1
    
    Plan hash value: 1816312439
    
    -------------------------------------------------------------------------
    | Id  | Operation        | Name | Rows  | Bytes | Cost (%CPU)| Time     |
    -------------------------------------------------------------------------
    |   0 | SELECT STATEMENT |      |       |       |     1 (100)|          |
    |*  1 |  INDEX RANGE SCAN| I1   |     1 |    13 |     1   (0)| 00:00:01 |
    -------------------------------------------------------------------------
    
    Predicate Information (identified by operation id):
    ---------------------------------------------------
    
       1 - access("COL1"=1)
    
    SQL> select /*+ full (t1) */ * from t1 where col1 = 1;
    
          COL1
    ----------
             1
    
    SQL> select * from table(dbms_xplan.display_cursor());
    
    PLAN_TABLE_OUTPUT
    -----------------------------------------------------------------------------------------
    SQL_ID  2tzbnc6mq1q4z, child number 0
    -------------------------------------
    select /*+ full (t1) */ * from t1 where col1 = 1
    
    Plan hash value: 3617692013
    
    --------------------------------------------------------------------------
    | Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |
    --------------------------------------------------------------------------
    |   0 | SELECT STATEMENT  |      |       |       |     3 (100)|          |
    |*  1 |  TABLE ACCESS FULL| T1   |     1 |    13 |     3   (0)| 00:00:01 |
    --------------------------------------------------------------------------
    
    Predicate Information (identified by operation id):
    ---------------------------------------------------
    
       1 - filter("COL1"=1)
    

    Force the FULL scan in a reference database:

    SQL> declare
      2   l_op pls_integer;
      3  begin
      4   l_op :=
      5   dbms_spm.load_plans_from_cursor_cache
      6   (sql_id          => '2tzbnc6mq1q4z',
      7    plan_hash_value => 3617692013,
      8    sql_text        => 'select * from t1 where col1 = 1');
      9  end;
     10  /
    
    PL/SQL procedure successfully completed.
    
    SQL> select to_char(signature) sig, plan_name, created, enabled, accepted
      2  from   dba_sql_plan_baselines
      3  where  signature = (select distinct to_char(exact_matching_signature)
      4                      from   v$sql
      5                      where  sql_id = '81qv4d7vkb571');
    
    SIG                          PLAN_NAME                      CREATED                             ENA ACC
    ---------------------------- ------------------------------ ----------------------------------- ---
    9005682359107037619          SQL_PLAN_7tynwchv97admdbd90e8e 16-JUL-12 05.24.11.000000 PM        YES YES
    
    SQL> 
    

    Prove that the base line is used:

    SQL> alter session set optimizer_use_sql_plan_baselines = true;
    
    Session altered.
    
    SQL> select * from t1 where col1 = 1;
    
          COL1
    ----------
             1
    
    SQL> select * from table(dbms_xplan.display_cursor());
    
    PLAN_TABLE_OUTPUT
    ------------------------------------------------------------------------------------------------
    SQL_ID  81qv4d7vkb571, child number 3
    
    An uncaught error happened in prepare_sql_statement : ORA-01403: no data found
    
    NOTE: cannot fetch plan for SQL_ID: 81qv4d7vkb571, CHILD_NUMBER: 3
          Please verify value of SQL_ID and CHILD_NUMBER;
          It could also be that the plan is no longer in cursor cache (check v$sql_plan)
    
    8 rows selected.
    
    SQL> select * from t1 where col1 = 1;
    
          COL1
    ----------
             1
    
    SQL> select * from table(dbms_xplan.display_cursor());
    
    PLAN_TABLE_OUTPUT
    ------------------------------------------------------------------------------------------------
    SQL_ID  81qv4d7vkb571, child number 3
    -------------------------------------
    select * from t1 where col1 = 1
    
    Plan hash value: 3617692013
    
    --------------------------------------------------------------------------
    | Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |
    --------------------------------------------------------------------------
    |   0 | SELECT STATEMENT  |      |       |       |     3 (100)|          |
    |*  1 |  TABLE ACCESS FULL| T1   |     3 |    39 |     3   (0)| 00:00:01 |
    --------------------------------------------------------------------------
    
    Predicate Information (identified by operation id):
    ---------------------------------------------------
    
       1 - filter("COL1"=1)
    
    Note
    -----
       - SQL plan baseline SQL_PLAN_7tynwchv97admdbd90e8e used for this statement
    
    22 rows selected.
    
    SQL> 
    

    And we will check if the other sensitive no accepted plan was captured as an alternative at the time of the analysis even if the capture is turned off.

    SQL> select to_char(signature) sig, plan_name, created, enabled, accepted
      2  from   dba_sql_plan_baselines
      3  where  signature = (select distinct to_char(exact_matching_signature)
      4                      from   v$sql
      5                      where  sql_id = '81qv4d7vkb571');
    
    SIG                          PLAN_NAME                      CREATED                             ENA ACC
    ---------------------------- ------------------------------ ----------------------------------- ---
    9005682359107037619          SQL_PLAN_7tynwchv97admdbd90e8e 16-JUL-12 05.24.11.000000 PM        YES YES
    9005682359107037619          SQL_PLAN_7tynwchv97adm3218f475 16-JUL-12 05.24.55.000000 PM        YES NO
    
    SQL> 
    

Maybe you are looking for