RU53168U1 - SYSTEM OF MANAGEMENT OF FIRE PROTECTION AND TECHNOLOGICAL PROCESSES - Google Patents

Abstract

The utility model relates to fire protection control systems and various technological processes and can be used at enterprises of the chemical and petrochemical industries, as well as at non-stationary objects with a variable configuration: all types of transport, but mainly on multi-section systems, subway trains, trains, monorails and etc.

The technical result achieved by using the proposed utility model is to ensure the reliability of the system even in the event of a communication failure between the control unit and the network switching unit, for example, in case of communication failure between the cars.

Using the proposed system, automatic determination and change of the system’s own configuration is provided, depending on the current configuration of the controlled (protected, managed) object (technical process).

The proposed system has been tested for fire safety in the process of implementing a comprehensive plan for experimental testing at metro facilities. The test results showed that the system fully complies with the requirements of NPB 109-06 "Metro cars. Fire Safety Requirements. ”

The specified technical result is achieved by the fact that the fire protection and process control system containing primary information collection devices and actuators equipped with signal converters and level 1 network controllers connected through the main network switching unit to the control and warning unit, consisting of a central logical unit and control panel, and configured to distribute information processing functions between two logical units characterized in that the main logic unit is introduced into the main network switching unit connecting the multichannel network controller of the 1st level and the network controller of the 2nd level, and the control unit additionally contains a similar network controller of the 2nd level, the input of which is connected to the output of the main unit network switching, and the output is connected to the central logic unit, while the control panel is supplemented by an indication device made in the form of a control panel.

Description

The utility model relates to fire protection control systems and various technological processes and can be used at enterprises of the chemical and petrochemical industries, as well as at non-stationary objects with a variable configuration: all types of transport, but mainly on multi-section systems, subway trains, trains, monorails and etc.

The known fire safety system (AS USSR No. 797706, Cl. A 62 C 37/40, publ. 1981), intended for use in industrial enterprises with a continuous nature of production and increased fire and explosion hazard, for example in the oil, chemical and petrochemical industry.

The known system includes fire detectors and environmental parameters in a certain way interconnected with signal converters, as well as a control unit, a logic unit, a unit for detecting false alarms, a group alarm unit, a computing device, a fire extinguishing system start-up device, an emergency shutdown device, a unit automatic adjustment of process parameters and operator panel.

The known system provides the prevention of fire hazard situations that occur at stationary technological facilities, but cannot be applied at facilities with a variable configuration, such as transport.

Known automatic fire alarm and fire extinguishing control of mobile vehicles (RF patent No. 39832, CL. A 62 C 7/00, G 08 B 25/00, publ. 2004). This utility model is intended for use in mobile vehicles and includes fire and data collection sensors with a central control unit connected to light and sound alarms

fire, fire extinguishing installation with a switch-on unit, the central unit additionally comprising a device for monitoring all components of the system and an event memory unit and is directly connected to the fire sensors and the vehicle engine start system, and is configured to switch to manual control mode with the engine turned on vehicle.

The functionality of this system applies only to a vehicle of the same configuration: a train car, a trolley cabin, etc., since it is structurally not possible to build up the system when changing the number of cars or when changing the configuration of non-standard objects.

A known control system for fire protection and technological processes (RF patent No. 30276, Cl. A 62 C 37/00, G 05 B 15/00, publ. 2003), designed for non-standard objects with a variable configuration, mainly for multi-section transport systems such as subway trains.

The known system contains primary information collection devices and actuators with signal converters, an emergency warning unit associated with a control unit consisting of a control panel and a logical unit, while the additional control unit is equipped with a second logical unit, and signal converters through network controllers and network switching unit connected to the first and second logical blocks, which are also interconnected, and the first logical block is connected to the control panel and to the block av antimalarial warning.

The system is configured to form local networks, which in turn can be combined into a common network.

The known system, when used, has proved the operability and reliability of operation by eliminating the possibility of false alarms when the second logical unit is introduced, however, in case of any communication failure between the control unit and the network switching unit, the system does not work offline.

The task to which the claimed utility model is directed is to ensure the autonomous operation of the local network of a single object in case of communication failure with the control unit while maintaining maximum reliability of the system in difficult operating conditions, mainly in objects with a variable configuration (for example, carriages).

The technical result achieved by using the proposed utility model is to ensure the reliability of the system even in the event of a communication failure between the control unit and the network switching unit, for example, in case of communication failure between the cars. This is ensured by introducing into each network switching unit a logical unit capable of, if necessary, independently controlling the situation in its own local network, as well as independently making decisions on launching extinguishing means in the event of a fire hazard.

Using the proposed system, automatic determination and change of the system’s own configuration is provided, depending on the current configuration of the controlled (protected, managed) object (technical process). This is due to the fact that each network controller contains its own unique code according to its purpose and a floating code determined by the control system in accordance with the current configuration, as well as two-way communication between network switching units by means of transceivers and two-way communication between the main network switching unit and control unit by network controllers of the 2nd level included in their composition.

The specified technical result is achieved in that the fire protection and process control system containing primary information collection devices and actuators equipped with signal converters and level 1 network controllers connected through the main network switching unit to the control and warning unit, consisting of a central logical unit and control panel, and configured to distribute information processing functions between two logical units characterized in that the main logic unit is introduced into the main network switching unit connecting the multichannel network controller of the 1st level and the network controller of the 2nd level, and the control unit additionally contains a similar network controller of the 2nd level, the input of which is connected to the output of the main unit network switching, and the output is connected to the central logic unit, while the control panel is supplemented by an indication device made in the form of a control panel.

In the control system for fire protection and technological processes, the control unit can additionally be equipped with a device with the function of non-volatile memory, which allows an analysis of the health of the system for a certain time.

The system is configured to transmit information over a wired or wireless communication channel, depending on the specifics of the protected (controlled) object.

To select an object of one configuration (for example, a car), signal converters, the corresponding network controller of the 1st level and the main network switching unit can be combined into the first local network, which allows collecting information about the situation in different compartments of the same object in the network unit

commutation.

In the case of several objects for controlling each of them, the nth local network is formed in the system, which will combine the signal converters, the network controller of the 1st level and the corresponding nth intermediate block of network switching, consisting of an intermediate logical block and associated multichannel network controller level 1.

Moreover, all local networks are combined into a common network of the system through a transceiver inserted into each network switching unit, which provides communication between the main logical unit and each intermediate logical unit, which allows the collection of information accumulated in all network switching units in the control and notification unit.

For ease of operation and increased reliability, the signal converter and the corresponding network controller of the 1st level are made in the form of a local control unit.

The proposed utility model is illustrated by drawings.

Figure 1 presents a functional diagram of a control system for fire protection and technological processes of a linear type (for example, for a vehicle, consisting of one object with one local network).

Figure 2 presents a functional diagram of a network-type control system (for example, for a long-distance vehicle, consisting of any unlimited number of objects) with several (1 + n) local networks connected to a common network of the system.

The fire protection and process control system shown in FIG. 1 consists of:

1 - primary information collection devices (for example, fire detectors,

environmental sensors, etc.);

2 - executive devices (fire extinguishing installations start-up devices, devices for disconnecting and switching devices, etc.);

3 - converters of signals from the primary data acquisition devices (1) and actuators (2);

4 - network controllers of the 1st level (information signals from all network controllers can be combined into a local network);

5 - a local control unit, which for convenience of service includes signal converters (3) and the corresponding network controllers of the 1st level (4);

6 - the main unit of network switching, which includes 7 - multichannel network controller of the 1st level, 8 - the main logical unit and 9 - network controller of the 2nd level;

10 - control and notification unit, which consists of a network controller of the 2nd level 9, the central logical unit - 11 and includes a control panel and light and sound alarms - 12 to display information about the state of the system;

13 - a device with a non-volatile memory function that stores information about all events;

14 - modem (radio or wired).

Signal converters - 3, the corresponding network controller of the ^1st level - 4 and the main network switching unit - 6 are combined into the first local network.

Figure 2 presents the control system of fire protection and technological processes, where in addition to figure 1 are made:

15 - an intermediate logical unit, which is connected with a multi-channel network controller of the 1st level - 7, with the formation of an intermediate block of network switching - 16.

In this case, the local control units 5 and the intermediate network switching units 16 are combined into the corresponding 1 + n local networks.

Local networks in an amount of more than one are combined into a common network of the system through a transceiver 17 inserted into each network switching unit (6, 16), which provides communication between the main logical unit (8) and each intermediate logical unit (15).

The system operates as follows. The signals from the primary information collection devices (1), for example, from fire detectors, enter the local control unit (5), consisting of a signal converter (3) and a network controller of the 1st level (4), where they are converted and the primary analysis . Local control units (5) of one object are combined into the first local area network with the main network switching unit (6), through which power is provided, and telemetry of local network subscribers.

The main logical unit (8) through the multichannel network controller of the 1st level (7) collects information about the state of the elements of the local network and information about the controlled parameters of the object. Information collected and accumulated by the main logical unit (8) in the main network switching unit (6) is transmitted to the control and notification unit (10). Information exchange between the main network switching unit (6) and the control and notification unit (10) is carried out by means of network controllers of the 2nd level (9). Analysis of the information received by the control and notification unit (10) is carried out by the central logic unit (11), with its subsequent display on the control and display panel (12) and possible recording in a device with the function of ergonezavisimoy memory (13).

The need for surgical intervention in the system from the operator is carried out by means of the control panel (12), for example, the implementation of the manual start of the Executive units (2), the cancellation of the automatic launch of the Executive units (2), etc.

The modem (14) allows the transfer of information stored in the non-volatile memory of the device (13) to the central control center or to the maintenance center for subsequent analysis.

Due to the fulfillment by the devices of the system of a special protocol of network exchange, constant monitoring of the parameters of communication channels with primary information collection devices (1) and actuators (2) is ensured for compliance with the parameter template.

In the case of a signal from the primary data collection devices (1) about the exceeding of the limit level of the monitored parameters, the main (8) and central (11) logic blocks begin to work according to the algorithm for generating the actuator launch command (2) located in the same volume where an excess of the limit level of the monitored parameters was noted. Moreover, the central logical unit (11) according to the results of processing and analysis of the received information forms a data bank for the main logical unit (8) for

working out the system control algorithm in accordance with the current state. In parallel, the main logical unit (8) generates commands for performing preparatory operations to begin the process of managing executive means (2). The main logical unit (8) verifies the correspondence of the obtained data bank to the pattern of possible states. If there is no contradiction in the received data bank to one of the template options, the central logic unit (11) controls the implementation of preparatory operations by the main logic unit (8) and generates a control command to start the executive devices (2).

In the case of the normal state of system elements and parameters of the monitored object, nothing is displayed on the control and display panel (12) - the panel screen is in sleep mode ("Sleep").

Such an organization of the control system for executive devices (2) with a high probability excludes the possibility of their false start in the event of a failure or failure of any component of the fire protection and process control system.

If there is a need to monitor the status of several objects, the system can be expanded by adding other 1 + n local networks, consisting of local control units (5) and intermediate network switching units (16). Moreover, communication between local networks of objects is carried out by means of transceivers (17), additionally introduced into the main (6) and intermediate (16) network switching units. With this configuration of the system, the main logical unit (8) processes and transmits information about the status of not only the first local network, but also about the status of other 1 + n local networks that are part of the general network of the system, and each intermediate (n) logical unit (15) processes information about the state only of its (n) local area network and transmits it via a transceiver (17) to the main logical unit (8).

The proposed system has been tested for fire safety in the process of implementing a comprehensive plan for experimental testing at metro facilities. The test results showed that the system fully complies with the requirements of NPB 109-06 "Metro cars. Fire Safety Requirements. ” In standby mode, the system provided control of the following parameters:

- temperature values in controlled compartments;

- rate of change of temperature;

- integrity and availability of fire extinguishing means in each compartment;

In standby mode, the system performed the following operations:

- determining the configuration of the system before entering the line;

- collection and processing of information coming from controlled compartments with a certain frequency of polling;

- testing of all system components for performance;

- indication of the current time.

When conducting tests to determine the functional performance of the system, differential measurement sensors were used:

- rate of change of temperature (Russia, DPS MOZ. 10.243 TU);

- the absolute temperature value (USA, Dallas Semiconductor DS 18 S 20). As a fire extinguishing agent, “Buran” brand modules were used (TU 4854-005-52459334-2000 and TU 4854-007-62459334-2003).

Temperature sensors were installed in the most fire-hazardous compartments of the Moscow metro cars and rolling stock of the Moscow monorail transport system.

Upon reaching a temperature growth rate of 5 ° C / min or an absolute value of -120 ° C, the operation of the system ensured the extinguishing of the source of fire only when using all the essential features indicated in the formula of the utility model.

The system made it possible to continuously monitor the condition of all fire-hazardous compartments of the rolling stock, transmit information on the status of the monitored compartments, as well as the results of extinguishing the fire source in case of occurrence, to the wagon number and specific compartment, onto the display of the control and warning devices installed in the driver’s cab.

All information arriving at the control and notification device was stored in the volatile memory of the system (the so-called black box), and when the train entered the depot by means of a modem, it was transferred via radio channel to the computer of the metro dispatch service.

The system also made it possible to control the heating temperature of the axlebox wheelsets along the entire route of the train and to inform the driver about exceeding its threshold values with the indication of the numbers of the car and the wheelset.

Tests have confirmed that all information about the system’s operation is accumulated in non-volatile memory in real time, can be transmitted to the monitoring and surveillance service network during the passage of remote information collection points, or can be read in the sludge and repair areas.

Thus, the proposed fire protection control system

and technological processes aimed at solving the problem and meets all the criteria for eligibility under applicable law.

Claims (7)

1. A fire protection and process control system comprising primary information collection devices and actuators equipped with signal converters and level 1 network controllers connected through a main network switching unit to a control and notification unit consisting of a central logical unit and a control panel , and configured to distribute the information processing function between two logical blocks, characterized in that in the main block of the network comm The main logical unit connecting the multichannel network controller of the 1st level and the network controller of the 2nd level is introduced, and the control and notification unit additionally contains a similar network controller of the 2nd level, the input of which is connected to the output of the main block of the network switching, and the output is connected with a central logical unit, while the control panel is supplemented by an indication device made in the form of a control panel. 2. The control system according to claim 1, characterized in that the control and notification unit is additionally equipped with a device with a non-volatile memory function. 3. The control system according to claim 1, characterized in that it is configured to transmit information via a wired or wireless communication channel. 4. The control system according to claim 1, characterized in that the signal converters, the corresponding network controller of the 1st level and the main network switching unit are combined in the first local network. 5. The control system according to claim 1, characterized in that the signal converters, a network controller of the 1st level and the corresponding n-th intermediate block of network switching, consisting of an intermediate logical block and the associated multi-channel network controller of the 1st level, united in the nth local network. 6. The control system according to claims 1, 4 and 5, characterized in that the local area networks in an amount of 1 + n are combined into a common network of the system through a transceiver, additionally introduced into each network switching unit with the possibility of communication between the main logical unit and each intermediate logical block. 7. The system according to claims 1, 4 and 5, characterized in that the signal converters and the corresponding network controller of the 1st level are made in the form of a local control unit.