RU33248U1 - Fire safety control system - Google Patents

Abstract

Fire safety monitoring system, including a central device with group units connected to it, each of which is connected to a communication unit with a fire extinguishing device and detectors connected to each other and to group units by ring loops so that each ring loop is equipped with a separate group block, and the detectors made in the form of analog sensors, each of which contains an address module, characterized in that each ring loop additionally includes an information receiving module, detectors, made in the form of non-address sensors, and the control module of external devices, the communication unit with the fire extinguishing device is made in the form of a program control module, and the central device is equipped with an element for connecting to a wireless signal transmission system, while detectors made in the form of non-address sensors are included in a ring a loop through the information receiving module.

Description

FIRE SAFETY CONTROL SYSTEM

The utility model relates to fire safety systems and is designed to prevent the occurrence of a fire mainly at various objects of increased fire and explosion hazard, including construction projects, oil and gas complexes, and also floating equipment, including ships of the Navy.

Addressable fire safety monitoring systems (SKPB) are known, including detectors made in the form of addressable sensors, see, for example, RF patent No. 2127623, published March 20, 1999.

The address sensors used in these systems can transmit only three types of notifications (NORMAL / ALARM / MALFUNCTION), therefore when using these sensors it is impossible to determine exactly how closely the controlled parameter is at a threshold value or how local environmental conditions (dust, dirt, etc. p.) affect

on the sensitivity and, consequently, the quality of work of the detectors and the entire system as a whole.

More sophisticated are the analog addressable fire safety control systems containing detectors made in the form of analog addressable sensors, in response to which the value of the monitored value is transmitted in the form of an analog signal or code, see the 2002 Product Catalog of NPF Sigma-IS presented at the 8th Moscow international exhibition "MIPS-2002, p.3-8.

In an analog address system, analog sensors act simply as sensitive elements that transmit information about current temperatures, smoke density, etc. to the control panel.

Address-analog fire alarm systems are the center for collecting telemetric information from the detector. So, for a heat sensor, the station constantly monitors the temperature of the air at the place of its installation, for a smoke detector - the concentration of smoke. By the nature of the change in these parameters, it is the monitoring device, and not the detector, as in the case of addressable monitoring systems, that generates a fire signal. This can significantly increase the reliability of determining the source of ignition.

However, address-analog SKPB have insufficient reliability. This is due to the fact that the detectors in such systems are analog sensors, each of which is associated with a single addressable sensor. As a result, the failure of one of the analog sensors entails the termination of the entire system.

This drawback was eliminated in another SKPB, adopted as a prototype of this utility model, see RF certificate for utility model No. 26430.

The prototype is a fire safety monitoring system, including a central device with group units connected to it, each of which is connected to a communication unit with a fire extinguishing device and detectors connected to each other and to group units by ring loops so that each ring loop is equipped with a separate group unit moreover, the detectors are made in the form of analog sensors, each of which contains an address module. In addition, each detector is equipped with a cut-off of short-circuited sections of the corresponding ring loop. The communication unit with the fire extinguishing device is made in the form of a device for automatically switching on fire protection means, which is triggered by a signal from an analog sensor that controls one or another parameter contained in the detector.

The use of ring loops and the presence of cutoffs of short-circuited sections of these loops in each detector ensures uninterrupted operation of the system when single breaks and short circuits occur in the loop, as well as when replacing detectors.

However, the functionality of this system is limited, since its use is advisable only on floating objects (ships, ships).

For terrestrial facilities, such a system is very uneconomical, since it contains a large number of expensive elements, primarily addressable modules, which are also placed in explosion-proof enclosures, the need for which is dictated by the specifics of the system's operation at such strategically important facilities as naval ships. In addition, SKPB at civilian ground facilities must satisfy the Safety Standards and Rules (NBP) of civilian facilities, in particular, provide the ability to programmatically control the fire extinguishing process, operational information about fire safety violations, etc.

The proposed utility model is aimed at solving the problem of expanding the functionality of SKPB by creating a system design that could be used as

3 / GU29U-I

4I

floating objects, including ships of the Navy, and on land, including civilian objects.

According to the utility model, this problem is solved due to the fact that in the fire safety control system, including a central device with group units connected to it, to each of |

which are connected to a communication unit with a fire extinguishing device and detectors connected to each other and to group units by ring loops so that each ring loop is equipped with a separate group block, and the detectors are made in the form of analog sensors, each of which contains an address module, in addition to each ring loop includes an information receiving module, detectors made in the form of non-address sensors, and an external device control module, a communication unit with the device

fire extinguishing is made in the form of a program control module, and the central device is equipped with an element for connecting to the system

wireless signal transmission, while the detectors, made in the form of non-addressable sensors, are included in the ring loop through the information receiving module.

The applicant has not identified technical solutions that have the same set of features as the claimed utility model, which allows us to conclude that it meets the criterion of “novelty.

1

The essence of the utility model is illustrated by the drawing, which shows the structural diagram of the proposed fire safety control system (SKPO). SKPO can be implemented as a two- or three-level distributed microprocessor system.

In this specific example, there is a three-level SKPO for civilian ground facilities.

The system contains detectors 1, group units 2, a central unit 3. The latter is the upper level of the system and provides centralized collection, storage and processing of information received through group units 2 from detectors 1.

The central device is designed to receive and process data on the state of the system from detectors and signaling devices, display information about the state of the system and fire hazard situations, issue alarms, enter system control commands, and store information about the system configuration.

All detectors 1 are connected with each other and with group blocks 2 ring loops 4 so that each loop 4 is served by a separate group block 2. Moreover, each of the detectors 1 includes an analog sensor 5 of a controlled parameter with address module 6 and the cut-off 7 short-circuit sections of the corresponding 6

loop 4. Address module 6 is designed for address exchange with group units 2 and provides, including:

-transmission of sensor status signals at the request of group unit 2;

-transmission of the value measured by the sensor at the request of the group unit 2.

Through the module 8 for receiving information, detectors made in the form of non-address sensors 9 are included in each loop 4. The announcers 1 and non-address sensors 9 comprise the lower level of the secondary control system, and group units 2 represent its average level. Each group unit 2 serves one ring loop 4, thus realizing:

-address reception of information from detectors included in the loop;

-processing information in order to control the fire situation, highlighting the states “WARNING,“ FIRE, “ACCIDENT;

- transfer of control results to the central unit 3.

Each group unit 2 is connected to a communication unit 10 with a fire extinguishing device 11. In this case, block 10 is made in the form of a fire extinguishing control module and is designed to control fire extinguishing means according to a specific program (algorithm). A control module 12 is also included in each loop cable 4. is he

has dry contacts, which makes it possible to control any external devices that are not part of the system (ventilation devices, elevators, etc.). The central device 3 is equipped with an output (not indicated by a separate position) for connecting the SKPB to the GSM standard wireless signal transmission system 13, which makes it possible to obtain operational information on a GSM standard mobile phone, thereby eliminating the need for constant presence of personnel at the central device 3. 14 spark protection is used to protect the detectors 1 from spontaneous combustion.

The system is completed depending on the type of controlled object and its scale. So, when installed on ground objects, SKPB mainly contains non-addressed blocks 9, while in this case one or two detectors 1 containing an address module are sufficient. To work on floating objects, on the contrary, the system is equipped with detectors 1, each of which contains an address module 6.

In this particular example, for a civilian ground object, the SKPB contains two detectors 1 and two non-address sensors 9.

Consider the work of the proposed SKPB when using it to control fire safety at a ground facility, for example, an oil and gas complex.

 I

Information coming from detectors 1 and non-address sensors 9, connected by loops 4, is received and processed by group units 2 serving the corresponding loops 4. In this case, hardware-software control of the state of loop 4 and the combined detectors 1 and non-address sensors 9 is carried out. by group unit 2 to the central unit 3. Faults in loop 4 are induced on the panel of group unit 2. Information on the status of detectors 1 received by the central device 3 from group units 2, eadresnyh sensors 9 and registered events displayed and saved on a display device (separate numeral not designated) of the central unit 3, and also partially transmitted to the system 13, a wireless communication standard GSM.

When a fire occurs, the module 10 provides program control of the fire extinguishing device 11, which eliminates |

false operation of the device 11 and thereby saves fire extinguishing. Module 12 during operation of the system manages external devices that are not part of the system (elevators, ventilation equipment, electromagnetic valves, etc.)

Thus, the proposed utility model provides the following technical and economic advantages:

-extension of functionality: the proposed SKPB can be used both on floating and on land objects;

-increase in profitability. This is due to the fact that the proposed system can be equipped with components that are optimal from the point of view of material costs - detectors (address and non-address), the choice of which depends on the volume (capacity) of the control object and its operating conditions. The presence of the fire extinguishing software control module, which excludes the possibility of a false operation of the fire extinguishing device, also increases the cost-effectiveness of SKPB, because allows you to save fire extinguishing means;

-the ability to control external devices that are not part of the system (elevators, etc.) by including an external device control module in the system;

-the ability to obtain operational information, for example, to a GSM-standard mobile phone, by connecting the proposed SKPB to a wireless signal transmission system.

The utility model can be implemented using well-known structural elements (detectors, microprocessors, operational amplifiers, thermistors, photocells, etc.), which indicates, according to the applicant, that the claimed object meets the criterion of “industrial applicability.

Claims (1)

Fire safety monitoring system, including a central device with group units connected to it, each of which is connected to a communication unit with a fire extinguishing device and detectors connected to each other and to group units by ring loops so that each ring loop is equipped with a separate group block, and the detectors made in the form of analog sensors, each of which contains an address module, characterized in that each ring loop additionally includes an information receiving module, detectors, made in the form of non-address sensors, and the control module of external devices, the communication unit with the fire extinguishing device is made in the form of a program control module, and the central device is equipped with an element for connecting to a wireless signal transmission system, while detectors made in the form of non-address sensors are included in a ring a loop through the information receiving module.