A different look at lift emergency calls

The relevant ordinances, directives and standards formulate the requirements for lift emergency call systems. But there is also the receiver side!

Bidirectional communication consists of a transmitter and receiver. A lift emergency call system can be defined in simplified terms as a transmitter. But what does the other side look like?

In order to satisfy statutory requirements, lift emergency call systems can be linked to an external 24/7-occupied control centre. The measures agreed or necessary are then instituted from there, for example, if passengers are trapped.

There is another way

If an operator wants to process and administer the connection of its emergency call systems itself, this can be done. The infrastructure already exists in many sectors. Control stations, technology control centres or factory fire brigades perform "internal services" in industry. Likewise, in hospitals and other institutions, there are structures for implementing so-called campus solutions. This also applies to authorities and organisations with security tasks.

As a development company, manufacturer and supplier, Telegärtner Elektronik not only provides "transmitters" in all kinds of designs (see issue 03/2020 of LIFTjournal), but in addition also the matching "receiver" with the NRZ 800. These two segments form the basis for an approach that is independent of the manufacturer of the lift.

Hardware with industrial electronics

The NRZ 800 offers all the options for receiving and processing emergency call systems (including the HBN visual version) from Telegärtner in conformity with standards. The central control of communication between emergency call systems in lifts and user workplaces in the control centre (clients) is assumed by an industrial PC integrated in a 19"-housing.

The NRZ 800 is bidirectional in design, enabling the control centre to actively make contact with people trapped in the car. The emergency call systems can be configured and programmed by control centre employees.

Integration in existing structures

In order to exploit the existing infrastructures of the transmission route of the emergency call system in the control centre to the NRZ 800, the campus solution from Telegärtner offers versatile versions, the company emphasised. Emergency calls and messages can be transmitted both via telephone systems (analogue or VoIP) or by Ethernet. The currently favoured method of realising connections via GSM modules is likewise possible.

The corresponding user software NTFZ is linked to the NRZ 800. This is used to accept and process incoming emergency calls and messages. Moreover, the entire conduct of an operation to rescue people is documented completely with the manual creation of an intervention protocol.

Every emergency call and all messages are automatically provided with time stamps. Routine management is automated. Missing routines are displayed to the user. If the message processing occurs in the control centre with the help of higher-level software that combines several building trades (hazard messaging technology, etc.), the NTFZ can be integrated.

Bundling services

Pre-existing resources are used with a suitable and individual campus solution from Telegärtner, the company explained. Process chains can be expanded and other internal synergies achieved.

Desired requirements are taken into account as part of the project planning and implementation, according to Telegärtner, "Existing technical circumstances and organisational structures recur in the overall concept."

Frank Spickeneder
The author works in Telegärtner Elektronik distribution and is responsible for the emergency call department

More information: prolift-aufzugnotruf.de