Min favvo

16 svar

Så har jag äntligen kommit över egna SRR-SI-mastrar! Trådlösa mastrar med en dongel som tar emot signalen. Gissa om ni kommer att se dem i målfållan på Hallandspremiären i helgen om snön smälter bort 🙂
SRR
Den är även perfekt för familjefoton 🙂 Man riggar upp miniknatsprylarna med kamera och allt. Sen en trådlös master till en ROC kopplad till kameran. Sen sätter man familjen i soffan och SRR:en och en SI-pinne i näven på dottern, sen smäller det av foton på löpande band 🙂
Till helgen hoppas jag även att min nya grej för miniknaten ska funka… Ett bildspel på alla bilder tagna under miniknatet på en av resultatskärmarna i resultattältet 🙂
Syns till helgen hoppas jag!
//Oskar

16 tankar kring ”Min favvo”

    1. Oskar Berg Inläggsförfattare

      De har precis kommit. Gunnar har äntligen fått köpa dem av Tyskland. 1750 kr har jag för mig för SRR:en och 350 kr för dongeln. Vet inte hur många han beställde bara. Men bror Erik har också fått sin 🙂 Maila och fråga!
      //Oskar

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    1. Oskar Berg Inläggsförfattare

      From sportident.com:
      ”SPORTident do not offer an online shop”… So Simon, can you email order to them or how do you buy from them?
      //Oskar

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      1. Chris Bagge

        Vi har också kunnat köpa dom här i Danmark i ungefär ett år. Kostnad i Danmark var; BSF8-SRR DKK 1500,- USB-SRR DKK 300,- och OEM-SRR DKK 150,-. OEM-SRR är en ’bantad’ utgåva av USB-SRR dock utan TTL-USB converter och utan kapsling. Det är helt enkelt hälften av kretskortet i USB-SRR donglen. Vi använder dom då logik-nivåerna passar ihop med våra TinyMesh radio. Ifall det är svårt att få tag i dom i Sverige kan ni kanske ta kontakt med Mogens Jørgensen på http://www.sportident.dk. Han fick hem dom till oss.

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  4. Simon

    Hej Oskar,
    yes, I simply email my order to them. I don’t know if this is by some special permission I have due to recurring orders (next to my radio control project, I am also responsible for two regional SI-sets here in GER), but nobody ever complained on their side.
    BUT – I do know that there is a system of ”licensed retailers”, meaning that orders from specific countries ”must” go through the local retailers – see also https://www.sportident.com/support/retail-partners.html
    And again BUT – I put the ”must” in quotes, because I know of two cases were willing buyers have simply ”bypassed” the official retailers by ordering through SI.de successfully…
    So, uhm, if anybody is unable to order locally, I might be able to help out…

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  5. Chris Bagge

    Hejsan Oskar
    Trevligt att ni har kommit med i ”klubben” ;-). Inte snubbla i kablar mera.
    Vi har 10 enheter här i FIF Hillerød. Några erfarenheter med dom är:
    > Kontrollen skal vara högst 5 m från USB-SRR. Det är räckvidden.
    > Man kan ha upp till 8 SRR enheter på samma USB-SRR. Ifall avståndet är lite lång för USB kablen (5 m) finns det USB-förlängning på åtminstone 20 m (Kjell&Co).
    > Vi har sett et problem när man har flera BSF-8 SRR på gång samma USB-SRR mottagare. Mottagaren måste kunna ta emot data hela tiden.
    > USB-SRR skall gärna vara aktiv när man startar BSF-8 SRR. BSF-8 SRR stänger av sin radio inom ?? minuter ifall den inte får kontakt med en SRR mottagare.
    >Man kan hyra några enheter hos Simon ifall man plötsligt har ett behov (för flera).

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    1. Oskar Berg Inläggsförfattare

      Ja, den klubben vill man vara med i 🙂 Fler ska det bli! Så smidigt!!
      Aha, stänger den av radion om den inte hittar en USB-SRR alltså! Trodde bara den sände ut i etern oavsett svar eller inte… Bra tips!
      Jag förstod inte riktigt, vad var problemet med fler SRR på samma USB-SRR?
      //Oskar

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  6. Simon

    Hej igen,
    to add to Chris’ experiences: if you are going to be nearly exceeding the SRR-range (5 to 8 metres) – for example on a broad finish line or at ski-o competitions where multiple stations of one control need to be placed at enough distance for skating in between, you should probably use *two* SRR-dongles (for example one on each side of the finish). Note that you can configure the dongles between two frequency bands, called ”red” and ”blue” (using SI-config). Only the dongles need to be configured, the stations will ”find” whichever frequency answers. And for two dongles at a control site (or finish line), you should use both frequency bands (one red, one blue), not two with the same band – otherwise you will get very confused stations and punches will arrive in duplicates (or not at all).

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    1. Oskar Berg Inläggsförfattare

      So the USB-SRR doesn’t only listen? It communicates with the SRR? I thought it was passive listning?
      Do you mean that the USB-SRR units, blue and red, communicates between each other so they don’t send duplicate punches? Do they really do that?
      //Oskar

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  7. Simon

    Hej Oskar,
    It depends what you mean with ”listen” versus ”communicate”. 🙂
    You cannot send a command to the SRR-receiver (USB-stick) from your computer to talk to the SRR-stations, there is no active communication channel open from USB to SRR. But – the SRR-station does expect a short response (acknowledge) from the USB when it sends a punch. If it does not receive an acknowledge, it will retry up to 3 times, and while doing so, will switch from ”red” to ”blue” radio band and vice versa, to try to find an active listener.
    The SRR-stations do not talk to each other either, they only talk to the USB-receiver.
    Initially, when the station has been off and unconnected, the first SI-punch wakes the SRR-transmitter up. It then attempts to ”pair” with an SRR-receiver. After that succeeds, the SRR-station will try to send the punch to that receiver. Next punches will also be sent to that receiver – until there is no receiver answering with an acknowledge, then the pairing-process starts again. So from a battery perspective, it is NOT a good idea to have a SRR-station programmed with AutoSend when there will be no SRR-receiver present. This will mean 3 attempts per punch – not good for the battery.
    So my scenario with the ”double-punches” came from the possibility that you set up two ”red” receivers. The station will send its punch, but get either two acknowledges or just corrupted radio-overlap from two receivers. But both SRR-receivers will have got the punch, sent a confirmation, and think everything is fine, so they will output the punch through USB. Then, you already have two punches. In the worst case, the station will not have understood any confirmation (due to radio overlap), so it will try again – and you might again get two punches from two USB-receivers.
    This is why I say you must use different bands – red and blue – so that each punch will create exactly one SRR-confirmation, and the SRR-station will be happy.
    Cheers / HAPPY EASTER!

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    1. Oskar Berg Inläggsförfattare

      Aha, thank’s for a very good explanation Simon!! Now I get it! Happy easter!
      //Oskar

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    2. Chris Bagge

      Hi Simon and Oskar,

      Simon thanks for the fine explanation. Just some small comments.
      Take an SRR-control and power it up, without an active USB-SRR. Punch, and you will, in addition to the normal LED, see a small red LED on the add-on board twinkle, three times. Then connect/activate your USB-SRR and try once more. Now you will see a red and a green LED twinkle each only once.

      I have, when using the Radiocrafts Tiny Mesh units, experienced a problem slightly different from the one reported by Simon. You may, if you have multiple SRR-controls on a single SRR stick get a situation where concurrent punches are lost. I am at the present working on a intermediate buffer (AVR Tiny 2313) to remediate the problem.

      Then some additional information with respect to the use of SIAC. SPORTident made an advertising approach during the ”Easter Tournament” in Denmark (around 1500 particpants). The total race was ”touch free”. All participant were using SIAC’s provided by SPORTident (free) and all controls were touch free.
      I tried it, and it was a nice thing when one was running ’in a train’. No clustering at the controls. They were however using a special finish line setup, developed for Ski-Orienteering. Ski-Orienteering requires a minimum finish line width of 6 m. They did not use a BS11-BL, but a set up with a cable channel that was dug down under the finish line. and connected to a ’special box’.

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  8. Per Lengquist

    Hi all.
    I believe strongly in the potential of Tinymesh, when telco mobile data is not available or reliable. I have a demo kit of 3 Tinymesh units for 0,5W on 169MHz band. It is license free in europe. The low frequency should assure good penetration even in wet forrest. Product code RC1701HP-TM.
    I would like to test it on a competition in August. Anybody know where I could get two BSF SRR units and two OEM SRR cards in a week?
    Chris: I assume you use the OEM SRR to connect to the Tinymesh module via UART?
    Regards Per
    per(at)lengquist.se

    Svara ↓

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