RU2702084C1 - Method for start-up and diagnostics of warning sirens and device for start-up and diagnostics of warning sirens - Google Patents

Abstract

FIELD: warning systems.

SUBSTANCE: invention relates to emergency notification systems. Method of launching and diagnosing warning sirens, including short-term test start-up and alarm triggering of siren, and in short-term testing mode and in alarm notification mode, complex diagnostics of warning sirens is carried out, simultaneously measuring currents in windings of siren asynchronous motor and horn mechanical drum rotation frequency, and in the alarm notification mode, measurements are taken during the siren activation time with interval of 1 s, comparing obtained values of currents and rotation frequency with corresponding control values, pre-installed and stored in non-volatile memory of control board of HSCD, results of comparison are transmitted to automated monitoring and control system or to independent operator's panel.

EFFECT: technical result is higher reliability and reliability of sirens warning.

2 cl, 2 dwg

Description

FIELD OF THE INVENTION

The invention relates to emergency warning systems at industrial facilities and residential buildings and can be used to start and control warning sirens.

Technical level

A device for triggering sirens is known (http://by.sensor-m.com/ustrojstvo-zapuska-siren-rum), intended for broadcasting signal and voice messages in enterprises with hazardous production, in settlements and places of the greatest concentration of people. The device provides the issuance in the channel of the sound path of the message received through the communication channels, and has the ability to generate an electronic siren signal and on / off commands for horn loudspeakers with remote control. The device operates in broadcast mode for at least 10 minutes, or for at least 3 typical cycles, followed by inactivity for at least one hour (with a fully charged battery).

The closest analogue to the claimed method and device is the method of triggering alarm sirens (https://aacc.ru/sistemy-opoveshheniya/blok-bzs/), in which the start of electric sirens in test mode is carried out from third-party devices (OPS, etc. .) and make a short, test start of the electric siren (by default - 5 s), the electric siren is turned off automatically. In the "Local" mode, the start and shutdown of the electric siren is carried out in manual mode directly from the product panel. Switching between modes is carried out by the “Mode Switch”, access to which is limited by a special key.

The disadvantage of these devices is that they do not provide testing and diagnostics of warning sirens in any of the modes.

SUMMARY OF THE INVENTION

The technical result of the proposed technical solution is to increase the reliability and reliability of warning sirens.

To achieve the technical result indicated in the first aspect of the present invention, a method is provided that in the short-term testing mode and in the alarm notification mode, complex diagnostics of the warning siren systems are carried out, while measuring the currents in the windings of the siren's asynchronous motor and the speed of the mechanical siren drum, In this case, during a short test mode, it includes 3 cycles consisting of an active phase of 2 s duration, in which the start to the siren electric motor and the speed of rotation of its drum, and the braking phase of 58 s, in which only the drum speed is measured, and in the alarm mode, these measurements are carried out during the entire time the siren is turned on with an interval of 1 s, the obtained values of currents and speed are compared with the corresponding control values previously set and stored in the non-volatile memory of the control board of the ultrasonic vibrating system, the comparison results are transmitted to an automated control system and a systematic way or in a stand-alone operator console.

To achieve the same technical result, a second object of the present invention provides a device comprising a warning siren testing unit connected to an external sensor unit made in the form of a proximity encoder based on a Hall sensor, while the siren testing unit includes a control board, a power board with a power board connected to a three-phase AC power supply and an external device connection board.

The invention is illustrated by drawings. In FIG. 1 shows a block diagram of a device. In FIG. 2 shows a functional diagram of the device.

1 - control board;

2 - power board;

3 - connection board;

4 - block external sensor;

5 - liquid crystal indicator (LCD);

6 - siren;

7 - module interface RS-485;

8 - microcontroller;

9 - power module of the ultrasonic vibrating system;

10 - three-phase AC power supply;

11 - siren connection connector;

12 - three-phase optical relay;

13 - block external memory;

14 - speed sensor;

15 - current sensor;

16 - connector of a three-phase AC power supply;

17 - LEDs.

As shown in the structural diagram, the microcontroller 8 is placed in the control board 1 with a test program installed in it, the information outputs of which are connected to the information inputs of the liquid crystal display indicator 5 for displaying service information and test results. The communication outputs of the microcontroller 8 are connected to the information inputs / outputs of module 7 of the RS-4857 interface. The control outputs of the microcontroller 8 are connected to the control inputs of the power board 2. Interaction with external devices and the external sensor unit 4 is carried out via the connection board 3. The device is powered by the power module of the UZKS 9, located on the power board 2, to which the three-phase AC power supply unit is connected 10 and test siren 6.

The implementation of the invention

The inventive device is a programmable industrial device consisting of a siren testing unit and an external sensor unit designed to monitor the operability of a mechanical siren drum. The siren testing unit and the external sensor unit are enclosed in enclosures with a dust and moisture protection class IP65. The external sensor unit is a non-contact encoder based on the Hall sensor and has galvanic isolation for connection to the siren testing unit.

As shown in the functional diagram of the ultrasonic vibrating system (Fig. 2), the information outputs of the microcontroller 8 are connected to an external EEPROM memory chip with a volume of 256K bits 13 and an LCD indicator 5 of service information / test results. The information inputs of the microcontroller 8 are connected to the current sensor 15 of the siren electric motor winding and the speed sensor 14 of the siren drum 6. The control outputs of the microcontroller 8 are connected to a three-phase optic relay 12, which switches the power supply to the tested siren through connector 11.

The communication outputs of the microcontroller 8 are connected to the RS-485 interface module 7. The device is powered by the power supply module of the ultrasonic vibrating system 9. The three-phase AC power supply unit 10, which provides operation of the test siren 6 alerts, is connected to the device through a connector 16, to which the presence control LEDs 17 are connected phases and inputs of a three-phase optical relay 12.

In test mode, the siren starts up from a remote automated control and management system or an autonomous operator console.

In testing mode, the diagnosis consists of 3 cycles, each of which includes an active phase (siren on) for 2 s and a braking phase for 58 s. In the active phase, the starting current of the siren electric motor and the frequency of rotation of its drum are measured. In the braking phase, the siren drum speed is measured. In each cycle, the measured values are compared with the control values stored in the non-volatile memory of the ultrasonic vibrating system and the measurement results are displayed on the LCD.

In an emergency situation (excess current in the motor windings (ED) of the siren relative to the control values, breakage, jamming of the drum), the power supply to the siren is automatically cut off with the issuance of the appropriate diagnostic message and exits the test program.

Upon completion of the test procedure, an archive is created in the EEPROM memory for the last 3 records of the test results of the siren.

In the absence of an emergency, the decision on the siren's health is made in the 3rd test cycle.

Diagnostic results are displayed on the LCD of the UZKS indicator, in an automated monitoring and control system or on the operator panel.

In the alarm notification mode, measurements and diagnostics are carried out during the whole time the siren is turned on with an interval of 1 s. At the same time, the LCD displays information about the current values in the motor windings of the siren and the frequency of rotation of its drum. The time interval for the operation of the siren is set by the position of the toggle switch (“Alert ON”) or by the command from the automated monitoring and control system. The power-on command contains information about the time interval for turning on the siren.

After the siren is turned off, a decision on its operability is made similarly to the test mode. Emergency handling is similar to the test mode.

Upon completion of the alarm notification mode, an archive is created in the EEPROM memory for the last 3 records of the siren diagnostic results.

Data exchange with an automated monitoring and control system is carried out through external modems connected to the start-up and control device via RS-485 interfaces with a speed of at least 9600 bps. The ultrasonic vibrating system uses the Modbus RTU software protocol for data exchange.

The device can be used for 3 types of warning sirens: S-28 three-phase 380 V, 50 Hz connection, S-28 single-phase 220 V, 50 Hz connection and S-40 three-phase 380 V, 50 Hz connection.

Claims (2)

1. A method for starting and diagnosing warning sirens, including a short test run and alarm starting of a siren, characterized in that during a short test mode and in an alarm notification mode, complex diagnostics of warning siren systems are carried out, while measuring currents in the windings of the siren's asynchronous motor and the speed of the mechanical siren drum, while the measurement in the short-term test mode includes 3 cycles, consisting of an active phase lasting 2 s and a braking phase lasting 58 s, and in the alarm notification mode, measurements are taken during the entire time the siren is turned on with an interval of 1 s, the obtained values of currents and speed are compared with the corresponding control values previously set and stored in the non-volatile memory of the control board of the ultrasonic vibrating system, the results of the comparison are transferred to the automated control and management system or in an autonomous operator console. 2. A device for triggering and diagnosing warning sirens, comprising a siren testing unit that interacts with an external sensor unit made in the form of a contactless encoder based on a Hall sensor, while the siren testing unit includes a control board, a power board with a power board connected to an external power supply module AC power, and a board for connecting external devices connected to the control board and power board.

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