Alarm system and method for triggering an alarm signal

An alarm system comprising:

• a portable identification device and a portable alarm device, wherein
• the identification device is configured to receive an enquiry signal and to emit an identification signal in reaction thereto, and
• the alarm device includes:
• a touch-sensitive sensor device, which is configured to record a touch and convert it into an electrical touch signal,
• an enquiry device, which is configured to emit the enquiry signal and to receive the identification signal, and
• a control system, which is connected to the sensor system and enquiry system through data technology
• wherein the control device is configured to
• emit the enquiry signal by the enquiry device in reaction to the touch signal,
• compare the identification signal received in reaction to the enquiry signal with a predefined identification,
• perform an identity check, wherein the identity check is positive if the received identification signal corresponds with the predefined identification and wherein the identity check is negative if the received identification signal does not correspond with the predefined identification or if an identification signal is not received within a predetermined period of time, and
• emit an alarm signal if the identity check is negative.