IP Intercom - Hold Open Relay

[ikcarus]

I want to use an IP Intercom (KD8) for a set of electric gates. My intention is to use the dual lock function to provide two different opening regimes for the gate:

- Lock 1 - open the gate and allow the motors auto close function to close the gate after a period of time. (Straight forward)
- Lock 2 - open the gate and hold it open until such times as instructed to close. (This is where I need some assistance)

Can the KD8 be set to hold its relay open, indefinitely, until for example, a code is reentered or instruction given from the screen? I've been working through the data sheets and paperwork, as well as forums, but not sure how best this would be implemented? Any help appreciated

 

[trempa92]

Manually you can unlock and keep it open on new firmware It has 4 options: Unlock,lock, Remain Open, Remain Closed.

But maximum time set to hold is 255s via lock options.

If you have any kind of device on windows/linux running 0-24, you could make a small automation script using ISAPI calls

For example

When unlock is pressed, read it in listener and make PUT remain open request
And depending on what trigger will be for closing, you could use alarm input on Device so your listener could catch that and send PUT close.

There are ways

Cheers

 

[ikcarus]

It sounds like the new firmware is the solution! Remain open should fulfill what I need. I’ll upgrade and test

 

[ikcarus]

I’ll explore whether a trigger (keypad, tag) can be mapped to remain open on lock 1. And same then to open on lock 2

 

[trempa92]

It can via custom dev solutions

 

[ikcarus]

Can you elaborate?

 

[trempa92]

Well you would need a device in your house working 24/7, either small RaspberryPie or windows NUC, a custom made small service that fetch realtime events and push command via API back to device.

an example fetching card swipe on device event

And as soon service catch that event, you could trigger PUT request

url:

http://deviceipaddress/ISAPI/AccessControl/RemoteControl/door/1

body:

'1.0' encoding='utf-8'?><RemoteControlDoor xmlns="同创杨梨园" version="2.0"><cmd>alwaysOpen</cmd></RemoteControlDoor>

After that you could wait for event alarm input(some trigger, either door closed or timer relay whatever) via same service, and simply close door

 

[ikcarus]

Had a play with this tonight. Here are my findings:

Under the new firmware - yes, remain open is an option. But it seems, only via the web interface. I can't see a way to map a keypad input to remain open (unless I'm reading it wrong).

An idea I have had for a simple implantation is a latching relay - it will change state based on an impulse. Simple triggering lock 2 on the intercom would create an impulse which could switch the relay between an open/close state.

 

[trempa92]

Yes its an easiest way