摘要:
A field circulatory constriction device suitable for self-application by an injured person in order to stop arterial blood loss in an injured limb includes a strap and a latch for coupling the strap around the limb. A buckle is provided for cinching the coupled strap to the limb and a block and tackle mechanism is provided for increasing the pressure of the cinch strap onto the limb.
摘要:
The present invention relates to a device for electronically surveying items in a monitored area. The device is equipped with a transmitting and/or a receiving device. The aim of the surveying device is to provide an economical way for surveying electronically protected items. To this end, the surveying device is made up of individual layers of material, which taken individually are flexible and possessed of a low level of resistance, but when combined are characterized by a high level of rigidity and resistance.
摘要:
The present invention is directed to an apparatus for the surveillance of an electronic security element in an interrogation zone. The apparatus includes a transmitting device emitting at least one periodic interrogation signal into the interrogation zone, with the interrogation signal causing the security element to deliver a characteristic signal, a receiving device receiving the characteristic signal, and a computing/control unit evaluating the signals r(s) received from the receiving device and producing an alarm when the presence of the security element is established. The apparatus improves the detection of articles equipped with electronically detectable security elements within an interrogation zone, in that the computing/control unit evaluates the received signal with respect to amplitude and phase (I component and Q component), that it detects and determines by approximation an interference signal (fd(s)) occurring in the received signal, and then it removes the interference signal (fd(s)) from the received signal (r(s)).
摘要:
The present invention relates to an apparatus for the surveillance of an electronic security element in an interrogation zone. The essential elements are a transmitting device, a receiving device and a computing/control unit. The transmitting device emits at least one interrogation signal into the interrogation zone. This signal causes the security element to emit a characteristic signal. The receiving device receives the characteristic signal and generates a signal which is an indication of the characteristic signal. The computing/control unit evaluates the signals received from the receiving device and produces an alarm when the presence of the security element is established. The evaluation comprises detecting spikes from the signals received from the receiving device, creating a corresponding signal shape from the spikes in a self-learning process, and removing the determined spikes from the signals received from the receiving device.
摘要:
The present invention relates to an apparatus for the surveillance of an electronic security element in an interrogation zone, comprising a transmitting device emitting at least one cyclic interrogation signal into the interrogation zone, with the interrogation signal causing the security element to deliver a characteristic signal, a receiving device receiving the characteristic signal, and a computing/control unit evaluating the signals received from the receive device and producing an alarm when the presence of the security element is established.