How to make sure that Zabbix sends a message on time?

The purpose of the task is a periodic schedule notification once a day or several times that Zabbix guard and works, and that is not it so happened that the accident occurred, and Zabbix in suspended animation for some reason and nothing was sent. Method - SMS, but it does not matter. Can't figure out which side to approach the solution.
April 3rd 20 at 17:28
1 answer
April 3rd 20 at 17:30
Here the developer offers the idea:
Trigger function nodata() is extremely useful for monitoring of hearbeats. You make create a script which would periodically send a value to ZABBIX server (crontab + zabbix_sender), and the nodata() trigger would detect if there is no data coming from the script within a period of time.

That is, the action in the crown once a day, and trigger on absence of this action during the 23 hours.

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