RU106843U1 - RESCUE SIGNAL AND ALARMS - Google Patents

Abstract

 1. The lifeguard signaling device comprising a stationary state determination device connected to a control and power unit, which is connected to a direction-finding transceiver, a narrowband high-frequency sound signal generator with a siren connected to it, with a light signaling device, characterized in that it is equipped with a high-frequency ( HF) transceiver and a broadband sound generator, with an acoustic broadband speaker connected to it, which are connected to the control unit and power i. ! 2. A warning system containing a base transceiver station of an ultra-high-frequency (UHF) radio range, the outputs of which are connected to an audible siren and to a block of indicators, connected via a radio channel to n-signal means of the rescuer and to a radio-channel personal warning device equipped with a mechanical vibration generator.

Description

The invention relates to signaling systems that respond to an undesired or abnormal mode of operation, covering more than one of the groups, in particular light, acoustic and radio signals.

The signaling device is designed to issue alarm notifications when monitoring the condition, for example, firefighters who need help.

Known auxiliary rescue tool for firefighters Drager FRT 1000 (Fire Rescue Transceiver) (www.draeger.com), which includes a device for determining the stationary state, direction-finding transceiver, light and sound indication devices. When determining immobility, Drager generates an alarm signal transmitted over the air, accompanied by the inclusion of a light signal and an audible siren.

The search for a firefighter in an emergency occurs using all three of these warning channels.

The direction-finding transceiver emits a microwave signal of the CB range, which allows using the other receiver to determine the direction to the transmitter. The range of such a pair of transceivers is up to 20 ... 30 m.

At the same time, the acoustic alarm emitted by the siren is narrow-band and high-frequency, which allows you to hear it at distances up to 100 m, depending on the noise situation at the facility.

However, it is known that in an enclosed space it is not possible to determine the exact location of a high-frequency narrow-band sound source due to reverb effects. An increase in the sound pressure of a narrow-band source only leads to an increase in range, but does not solve the problem of localization.

In addition, the short range of a pair of wearable transceivers of the CB range does not allow for timely transmission of a signal for help outside the extreme zone.

Radio channel alarm systems are known for transmitting said signals.

These systems include the Lone Worker Alarm System. Diktron Developments LTD (www.diktron.com). The specified tool contains a transmitting device - DSX-TX and a receiving device - DSX-RX. The DSX-TX device is used in those places where the user works alone. This device automatically emits an alarm and transmits its identification to the receiving device, in case the rescuer needs help. The system operates in the UHF band, which ensures the delivery of signals from transmitters to the receiver. Up to 16 DSX-TX transmitters can be assigned to a single DSX-RX base system in a system. This rescue tool was taken by us as a prototype.

However, the task of searching and localizing the signal source is solved only by means of an audible monoharmonic siren, which is turned on in the DSX-TX transmitting device simultaneously with the alarming radio signal.

Another disadvantage of the system is the need for a constant presence of the operator near the DSX-RX receiving station, which in extreme conditions cannot be guaranteed. For example, when installing the DSX-RX in a fire truck.

The solution of the problem of localization of the sound source is simplified with an increase in the spectrum of the sound signal. Such multi-frequency sound, also known as “white noise”, is quickly localized by a person and therefore is used in evacuation systems. For example, there are known technical means of warning of fire, used to determine by ear the direction to the emergency exit. Such sirens, for example, include the PF24V Exit Point, manufactured by System Sensor (www.systemsensor.ru). Such sound indicators do not replace traditional sound (narrowband) and light sirens, but are used in conjunction with them. At the same time, narrowband signals practically do not interfere with the localization of sources of broadband signals.

The technical problem, which this utility model is aimed at, is to increase reliability

- notifications of necessary assistance to the rescuer equipped with the rescue equipment,

- localization of the rescuer’s location,

This problem is solved in that the signaling device of the rescuer containing the stationary state detection device associated with the control and power unit, which is connected to the direction-finding transceiver, with a narrow-band high-frequency sound signal generator with a siren connected to it, with a light signaling device, is equipped with a high-frequency (HF ) a transceiver and a broadband sound generator, with an acoustic broadband speaker connected to it, which are connected to the control and power unit .

The warning system contains a base transceiver station ultra-high-frequency (UHF) radio range, the outputs of which are connected to a sound siren and to a block of indicators, connected via a radio channel with n-signal means of the rescuer and a radio channel device for personal warning, equipped with a mechanical vibration generator.

The essence of the utility model is illustrated in the drawing, where

Figure 1 presents a block diagram of a signal means rescuer,

Figure 2 presents a block diagram of a warning system.

The signal device of the rescuer (Fig. 1) contains a device for determining the stationary state (motion sensor) 1, which is connected to the control unit and power supply 2, which is connected to the direction-finding transceiver 3, to the RF transceiver 4, to the generator of a narrow-band high-frequency sound signal connected to it siren 5, with a broadband sound generator 6 with an acoustic broadband speaker connected to it, and with a light signaling device 7.

The warning system of FIG. 2 includes a base transceiver station of UHF radio range 8, which is connected to an audible siren 9 and indicator blocks 10. Via a radio channel, base station 8 is connected to a set of 1 to n individual rescue signaling devices 11 that are pre-programmed into the system alerts, and with a radio channel personal alert device (UPR) 12, which is equipped with a mechanical vibration generator.

The operation of the rescue signal means occurs in the following modes.

Each rescue signaling device has the following operation modes: “Off”, “Standby mode”, “Warning”, “Alarm”.

The transition to "Standby mode" (and the reverse transition, ie, shutdown) is carried out either by pressing the control key (KU) on the tool itself (not shown in the block diagram), or automatically when the signaling device is disconnected from the device for charging the battery.

"Standby mode." The control and power unit (2) analyzes the signal from the stationary state determination device (1). The absence of a signal for a certain period of time (for example, 15 s) puts the tool in the "Warning" mode.

Warning mode. Short beeps are generated by block (5). If within a certain time interval (for example, 30 s) from the moment the “Warning” starts, a signal about movement from device 1 appears, then it will return to “Standby mode”. Otherwise, an automatic transition to the "Alarm" mode occurs.

The transition from both the “Standby mode” and the “Warning” mode to the “Alarm” mode is also possible by a manual method by pressing KU.

Alarm mode. An alarm notification is issued on the HF radio channel via block (4) and / or on the SV radio channel through block (3). Block (7) generates light flashes. Blocks (5) and (6) alternately generate sound signals, respectively, narrow-band high-frequency and "white noise". To disconnect from the "Alarm" mode with the transition to the "Standby mode" KU is used.

The operation of the warning system is as follows.

The base station (8) with connected display units (10) and sound sirens (9) is located on a vehicle (for example, a fire truck, a mobile rescue center). The unit of the UPR 12 radio channel is placed on the body, for example, on the arm in the form of a bracelet or on the chest in the form of a pendant of a lifeguard on duty, firefighter or driver, located at a distance of within direct line of sight from the base station, of about 100 m.

Upon receipt of the “Alarm” radio signal from one of the signaling devices of the lifeguard at the UHF base station:

- sound sirens are turned on (9);

- on the display units (10), the number of the signaling means (11) from which the “Alarm” signal has been received is displayed;

- the alert is transmitted over the radio channel to the UPR (12), in which the vibromechanical alert is turned on.

Thus, the reliability of notification of the necessary assistance to the rescuer and the localization of the location of the rescuer is increased.

Claims (2)

1. The lifeguard signaling device comprising a stationary state determination device connected to a control and power unit, which is connected to a direction-finding transceiver, a narrowband high-frequency sound signal generator with a siren connected to it, with a light signaling device, characterized in that it is equipped with a high-frequency ( HF) transceiver and a broadband sound generator, with an acoustic broadband speaker connected to it, which are connected to the control unit and power i. 2. A warning system containing a base transceiver station of an ultra-high-frequency (UHF) radio range, the outputs of which are connected to an audible siren and to a block of indicators, connected via a radio channel to n-signal means of the rescuer and to a radio-channel personal warning device equipped with a mechanical vibration generator.