SU594514A1 - Apparatus for transmitting alarm signal to central station - Google Patents

Description

The invention relates to the field of automatic signaling and can be used to monitor various technological parameters to alert aircraft crew members (helicopters) about failures, malfunctions and the state of the systems and units of an object using light and sound signals and take the necessary measures to ensure safety. flight.

The increase in the number of equipment installed on modern aircraft and its complication associated with the expansion of the volume and increase in the accuracy of the solved tactical flight tasks, leads to an increase in the number of objects of control and management.

With the development of aviation technology, the amount of information provided to each crew member is increasing, and the available time for receiving it, processing it, making the right decision and performing the corresponding actions is reduced.

An alarm device is known, one of which contains signaling sensors, an equating unit, a visual indicadia unit, a set of switches, and a logic unit 1.

The disadvantage of this device is that it does not take into account the sequence

the appearance of signals about the state of the alarm sensors, which excludes the possibility of precise control of sensors that are switched according to certain rules.

The closest technical solution to the present invention is an alarm signaling device, comprising preventive alarm channels 11 and an alarm channel, each of which is designed as signal sensors connected to the first input of the control unit, the first output of which is connected to the light indication unit, the first the start-up unit, the output of which is connected to the first input of the first switching element, the first output of which is connected to the signal element, the second start-up unit, the output of which is one with the first input of the second switching element, the output of which is connected to the input of the message supply unit, and the second input of the switching element is connected to the first output of the blinker, the second output of which is connected to the second input of the first switching element, the control keypad, to which the first inputs are connected the first and second start blocks, the second inputs of the control block of each channel, the third inputs of which are

the third input of the first switching element is connected via a luminance generator to a setting of the brightness control; the second output of the alarm control unit of the channel is connected to the second inputs of the first and second start blocks 2.

This alarm device monitors the health of the devices and in the event of a failure of the malfunction gives light and sound alarms. The alarm system has many channels, each of which is connected to the sensing .1 element and the I1 has a certain degree of criticality. The disadvantage of the device is that it does not take into account the reaction rate of processing the received information. In addition, for the priority output of the most important signal, special logic blocks are introduced for each channel, the additional circuit 1-; a; i) mi11ami51, and this. as a result, it complicates the system, increases overall weight characteristics and reduces reliability.

1 | The purpose of this invention is to increase .ieHiie the operativity -; determining an emergency situation, i.e., providing timely and clear information with issuing light and sound signals about failures, malfunctions and the state of the systems and units of the object depending on the shaft; processing.

The goal is achieved by introducing a block node, an additional switching element, an additional signal element and a third trigger unit, the first input of which is connected to the control keypad, the second input to the second output of one of the warning channel control units, and the output to the first input of the blocking node, the second input of which is connected to the second output of the first switching element, and the output to the first input of the additional switching element, the second input which is connected to the generator output luminance third input to the output of the generator glimmer, and output to the additional signal element.

The analysis shows that the introduction of a classification of signals according to the grounds is necessary for the proper construction of alarm systems, since it allows to divide all signals into two categories: emergency and warning, one of which is still emphasized importance, which, in turn, predetermines form of each signal. In turn, emergency, warning signals for the required response speed can be divided into three types: requiring immediate action (1-3 seconds), requiring quick action (5-10 seconds), requiring ordinary actions (over 10 seconds).

The drawing shows a block diagram of a device for alarming a central station, which includes: alarm channel 1, alarm channel 2, signal sensors 3, control units 4, light indication units 5, first startup unit 6, first switching element 7, alarm element 8, second startup unit 9, second switching element 10, message supply unit 11, generator

12 flashes, button panel 13, a luminance generator 14, a brightness regulator 15, an interlocking unit 16, an additional switching element 17, an additional signal element 18, a third startup unit 19. The operation of the proposed alarm device is based on the following principle. When a signal is received from the sensors of the 3 signals, the control unit 4 ensures that the light indication unit 5 is switched on in the constant burning mode, which is off:

0 opening contacts sensor -, - 3 signals.

When a signal from sensors 3 is received in one of the dedicated channels of a signaling alarm, unit 4 is controlled; and it turns on the light indication unit 5 and issues a signal to turn on the additional signal signal to the blocking node 16 and to the additional commutary fire element (yellow), which receives the gain signals simultaneously from the generator of the light 12 and the generator 14, while the light indication unit 5 operates in the constant burning mode, and the additional signal element 18 in the mode “flash.

After receiving the light signals by briefly pressing a button

5 of the panel 13 is sent to the control unit of this channel of the warning signal and the third start block 19 a signal to turn off the additional signal element 18. The light indication unit 5 is turned off after the cause has been removed and the contacts (as a result) of the sensors 3 have been removed signals.

When a signal is received from the alarm sensor, the alarm control unit 2 of the alarm system ensures that the corresponding light indication unit 5 is turned on, issues signals to the first switching element 7 through the first launch unit, biping the message supply unit 1 through the second startup unit 9 and the second switching unit, 10 .

At the same time, the corresponding light indication unit 5 operates in the "flash" mode, while in the "flash" mode the signal element 8 also operates and the audio signal of the buzzer sounds through the channel of the message supply unit.

5After seeing the sound and light

signals by briefly pressing a button on the keypad 13, the signal is sent to the first and second starting block to turn off the signal element 8, to turn off the sound signal, and to switch the emergency light display unit 5 to constant burning. Switching off the light indication unit 5 occurs after the elimination of the cause causing this signal and opening the contacts (as a result) of the sensor 3

alarms.

If signals from the alarm channel 2 signaling and warning channel 1 are simultaneously received, the alarm channel control unit 4 switches on the corresponding light signaling unit 5, turns on the Signal element 8 (red), the buzzer-type sound signal and blocks the activation of the additional signal element (yellow), the control unit of one of the selected channels of the warning. Alarm 1 turns on the light indication unit.

In this case, the emergency light display unit 5 and the signal element 8 operate in the flash mode, a buzzer-type sound signal is sent through the message supply unit channel 11, the warning light unit 5 is operating in the constant-burning mode, the additional signal element 18 is not lit.

After the alarm is perceived, by briefly pressing the button on the keypad, the first and second alarm trigger units are sent to turn off the signal channel of the element 8, turn off the sound signal, and to switch the emergency light display unit 5 to the constant burning mode; signal element (yellow) 18 in the “flash” mode.

After receiving the light warning, a short signal by pressing the button on the keypad sends a signal to the third launch unit 19 of channel 1 of the warning signal to turn off the additional alarm element 18. The warning and warning blocks of the light display 5 are turned off after the cause of these signals has been removed.

The proposed device for signaling an alarm to the central station ensures flight safety and timely and clear information about the state of the aircraft’s units and systems for a time not exceeding that needed to eliminate the cause of the critical mode due to the clear division of the signals into categories according to their importance; the introduction of the priority of the alarm before the warning, taking into account the necessary speed of reaction:

a) immediate action in the event of an emergency, with To (-3) s,

where TO is the signal detection time;

b) the usual actions depending on the effects caused by these signals with the arrival of warning information, with To (5-10) seconds;

c) to note the notification signals, while That 10 seconds.

In addition, the proposed locking system eliminates the possibility of a false exit.

alarms with priority over alarms.

Claims (2)

1. USSR author's certificate number 225035, cl. G 08 B 25/00, 1968. 2. US Patent No. 3582949, cl. 340-410, 1971.