RU2222051C1 - Intruder and fire alarm system - Google Patents

Abstract

FIELD: electronic and computer equipment, particularly for alarm signals transmission. SUBSTANCE: system for centralized property protection and fire protection of multisite objects with the use of engaged and commutable telephone lines includes at least one centralized observation station. Observation station has automated duty operator workplaces, which are formed as personal computers linked to each other by computing net. System also has communications muldem with automatic telephone system (ATS), modems communicating with ATS, group of automated signaling system users, group of non-automated signaling system users, ATS equipment set. Each ATS equipment set includes communications muldem with centralized observation station, modems communicating with centralized observation station, at least one interface block for communication with group of non-automated signaling system users. Each modem communicating with ATS and each modem communicating with centralized observation station are connected by straight pair of dedicated telephone line and at least by one commutable telephone line. EFFECT: increased number of protected objects, reduced cost in comparison with analogous systems having equal functional capabilities. 9 cl, 8 dwg

Description

 The invention relates to electronic and computer technology, in particular to automated alarm transmission systems and can mainly be used for centralized property and fire protection of dispersed objects using busy and switched telephone lines.

 The known security and fire alarm system "Comet-K" (Security and fire alarm system "Comet-K". - Security (VNIIPO Ministry of Internal Affairs of the Russian Federation), 1994, 1), which contains a central monitoring station with light indicators and manual controls, unit registration, alphanumeric printing device, a linear unit with a group of high-pass filters, a broadcast device, group concentrators with power supplies and low-pass filters and subscriber kits with lock loops.

 The disadvantages of this system are the low degree of automation, imitostability, reliability, efficiency and information content of the protected object, the significantly limited number of protected objects, the complexity of operation and maintenance of the system and its elements, the identity of property and fire alarms, and the lack of sound and visual alarms to the subscriber about setting up or disarming the facility and the possibility of calling the subscriber a police or fire department with a non-telephone protected object.

 The known system of fire and security alarm "Cyclone" (Security and fire alarm system "Cyclone". - Security, 1994, 1), which contains a central monitoring station, including a light and sound alarm unit, a manual control unit, a digital printing recording device, a control unit that is connected through four sets of transceivers, four blocks of differential transformers and four dedicated telephone lines to four sets of equipment of an automatic telephone exchange (A TS), each of which is made in the form of a group of hubs connected in parallel to a corresponding dedicated telephone line with a central monitoring station and connected together in parallel by a control bus, as well as subscriber kits, each of which contains an object unit and a low-pass filter and is connected to a busy one a telephone line to one of the hubs. Each hub of the PBX hardware kit contains a transceiver unit, an analysis unit, a control unit, an object number counter unit, a distributor unit, a buffer memory device, a control unit, a resonant amplifier, a line kit unit, and a high-pass filter unit. Each object block of the subscriber set contains a control device, a signal amplifier block, a code block block with a code lock, a multivibrator, a light and sound alarm block, a network and backup power supply unit, a switch block, a light indication unit and a control unit with security and fire alarm lock loops .

 The disadvantage of this known fire alarm system is its construction in accordance with the functional block architecture, which provides, in addition, exclusively only one-way signal flow between subscriber sets and hubs of sets of ATS equipment, which allows serving a relatively small number of protected objects, not exceeding 1000 subscriber kits having no more than one object block with one security and one fire blocking loops, e therefore providing the possibility of occurrence of localization places the signal property or the fire alarm in the protected object, as well as the signal, for example, after the fire alarm signal recording property alarm and vice versa. The same reason leads to the insufficient reliability of the known system due to the lack of redundancy of its elements, primarily telephone communication lines, and the possibility of automated monitoring of the state of object units and power supplies of subscriber sets. The lack of simulated resistance of this known system is associated with the availability of the ability to connect to the elements of the simulator system a no alarm signal. In addition, the architecture of this system does not provide for the possibility of calling a police unit or fire department from a non-telephoned guarded object, as well as transmitting a property alarm signal to a fixed guard department, a police department call signal to a fixed police department, and fire alarms and calling a fire department to the nearest fire department.

 The Alesya automated fire alarm system (Promotional brochure of the Scientific and Technical Closed Joint-Stock Company Alarm, Minsk, Republic of Belarus) is known, which is used by the Ministry of Internal Affairs Security Service of the Republic of Belarus for centralized property and fire protection of dispersed objects and contains a central monitoring point, including the integrated workstations of a duty operator, a duty engineer and a standby console integrated by a local area network on a centralized basis security on the basis of personal computers installed on the PBX repeater, consisting of a device for transmitting and processing information and switch directions, and installed on the guarded objects receiving and control fire and security devices. Depending on the configuration of its structure, this fire alarm system can provide protection from 40 to 10,000 objects.

 The disadvantages of this fire and security alarm system are the relatively small number of protected objects, as well as the impossibility of prompt automatic transmission of a property alarm signal to the assigned security department, a police call signal to a fixed police department, and fire alarms and call of a fire department to the nearest fire department use in the system of only one central monitoring point. The use in this system for communication between the repeaters installed on the PBX and the central monitoring point of the primary and backup dedicated telephone lines, of course, increases the reliability of the system, but not to the required level, since both of these lines pass through the same cable. However, the practice of operating cable communication lines has shown that failure occurs, as a rule, not of one, separately taken, core of the communication line, but of the entire cable, especially in case of violation of the operating rules of the cable communication line. In addition, the use in this system of primary and backup dedicated telephone lines significantly increases the cost of its operation. A sufficiently significant drawback of this system, as well as of all the known fire alarm systems described above, is that it provides for the use of only subscriber sets of this system, it cannot be interfaced with subscriber sets of other automated or non-automated fire and security alarm systems for a similar purpose and therefore does not allow the use in its structure of subscriber sets of other, sometimes morally and technically obsolete, oh systems annotation fire alarm, for example "Neva-10", "Neva-10M", "Phobos" "comet-K" and "Jupiter", which hitherto equipped sufficiently large number of protected objects. This requires the commissioning of this fire alarm system to equip the specified protected objects with new subscriber kits of this particular system, which significantly increases the cost of the system and leads, most often, to unjustified costs for subscribers.

 The closest in technical essence to the proposed invention should be considered a fire and security alarm system according to the patent of the Russian Federation 2110094, 1998, G 08 B 25/00, which in an automated mode provides the collection, processing, transmission, registration of notifications about the status of lock loops for protected objects and call operational groups of property, law enforcement and fire departments.

 The prototype system contains subscriber kits, each of which includes object blocks and a low-pass filter, ATC equipment kits, each of which includes hubs, a local area network and a multiplexer, and central monitoring points, each of which contains surveillance panels, including primary and backup file control devices, a block of directions of restart, a local area network, three uninterruptible power supply units and workstations on duty. Automated duty stations are used, inter alia, as one active and other standby ones and contain a microcomputer, a display, a keyboard and a local area network controller. Each of the concentrators included in the set of PBX hardware consists of several hot-standby active hubs, each of which contains a microcomputer, a local area network controller, a switched power supply unit, a serial I / O controller unit, a transceiver unit and a high-pass filter unit, and can be located in an active state, while the rest will be in hot reserve. The multiplexer included in the set of PBX equipment consists of several hot-standby active multiplexers, each of which contains a microcomputer, a local area network controller, a switched power supply, communication units, an input device, a download confirmation indicator, and a restart unit. The main and backup file control devices contain a microcomputer, a display, a keyboard, a local area network controller, a serial I / O controller block, a transceiver block, a restart block, a low-pass filter block, a long-term memory block, an I / O device, and an alphanumeric printing device. The object block of the subscriber kit contains lock loops for property and fire protection and mechanical lock control, a microcomputer, a code lock, a group of shaper amplifiers, a switch block, an address block, a backup power block, a reserve power level block, a power source, a mains voltage supply block, level control unit, matching unit, controlled divider, resonant amplifier unit, digital signal driver unit, indication unit, cipher number unit, key group, receiver group and radiation and a group of radiation transmitters.

 The system selected for the prototype is highly reliable due to the availability of hot redundancy of almost all of its main elements, for example, automated workstations for the duty officer, file control devices and, in general, central monitoring stations, active multiplexers and concentrators of ATC equipment kits, as well as power supplies for all elements of the system. However, such redundancy of almost all the basic elements of the system leads to a not quite justified, but very substantial increase in its cost, since, as the practice of operating automated centralized fire-alarm systems using telephone lines to transmit alarm messages, failures occur, first of all, It is in telephone lines. The possibility of hot and cold reservation of dedicated telephone lines provided between the central monitoring stations and PBX equipment sets provided for in the prototype system, of course, improves reliability, but leads to a very significant increase in the cost of operating the system. In addition, as already noted, the indicated increase in reliability due to the reservation of dedicated telephone lines is relatively insignificant, since both the main and backup dedicated telephone lines are located in the same cable, and when operating cable lines, as a rule, failures of the entire cable.

 Despite the fairly sophisticated architecture, the well-known fire alarm system allows centrally servicing no more than 32,000 guarded objects, which imposes significant restrictions on the possibility of its use, especially in large metropolitan cities with a population of more than one million people.

 In addition, the structure and principle of operation of the prototype system provide for the use in its composition as subscriber kits of exclusively only subscriber kits of this system containing a unique object block protected by the same patent, not allowing interfacing with automated subscriber kits of other automated or non-automated security systems -fire alarms for a similar purpose. Therefore, in the structure of the prototype system, previously developed on the basis of the now obsolete element base, but until now widely and successfully used for centralized security subscriber sets of other fire alarm systems, for example, Neva-10, Neva-10M, cannot be used "," Phobos "," Comet-K "and" Jupiter ", which are still equipped with a sufficiently large number of protected objects. Therefore, the commissioning of this well-known fire alarm system will require the re-equipment of these protected objects with new subscriber kits of this particular system, which significantly increases the cost of the system and, most often, causes unjustified expenses of subscribers.

 Therefore, the disadvantages of the known fire alarm system, selected for the prototype, are its high cost and the insufficient number of protected objects.

 The aim of the invention is to achieve a technical result, which consists in increasing the number of protected objects and reducing the cost of the fire alarm system while maintaining its level of reliability almost unchanged.

 The goal is achieved, according to the invention, in that the proposed fire alarm system, containing, in accordance with the prototype, at least one central monitoring station, containing at least one workstation on duty, made in the form of a personal computer, a computer network connecting the workstations of the duty officer, at least one set of PBX equipment, including a communication multiplexer-demultiplexer with a central monitoring station, and the group of automated alarm subscriber sets connected to the inputs and outputs of the automatic telephone exchange equipment sets differs from the prototype in that it is equipped with a multiplexer-demultiplexer for communication with the automatic telephone exchange, the input-output of which is connected to the input-output of the workstation on duty, communication modems ATS according to the number of sets of ATS equipment, connected by inputs and outputs with corresponding inputs and outputs of a multiplexer-demultiplexer of communication with a PBX, and a group of non-automated subscriber sets signaling connected to the inputs and outputs of the corresponding sets of PBX equipment, and each set of PBX equipment contains a communication modem with a central monitoring point, the input-output of which is connected to the input-output of the communication multiplexer-demultiplexer with a central monitoring point , one unit for interfacing with subscriber sets of manual signaling, the inputs and outputs of which are connected to the corresponding inputs and outputs of the multiplexer-demultiplexer with ides with a central monitoring point and inputs and outputs of a group of subscriber sets of manual signaling, and at least one relay unit whose inputs and outputs are connected to the corresponding inputs and outputs of a communication multiplexer-demultiplexer with a central monitoring point and inputs and outputs of a group of subscriber sets automated signaling, and each communication modem with the PBX and the corresponding communication modem with the central monitoring station are interconnected by a direct pair of a telephone line and at least one dial-up telephone line.

 In this case, the interface unit with the subscriber automatic alarm sets contains an input-output to the communication multiplexer-demultiplexer with a central monitoring point, a galvanic isolation unit, a power and restart unit, an audio signaling unit, a microcomputer, the corresponding inputs and outputs of which are connected to the inputs and outputs of the galvanic unit decoupling, power supply and restart and sound alarm unit, and at least one coordination module with a subscriber set of non-automated gnalizatsii one input-output of which is connected to the input-output of the microcomputer and a second input-output connected to the input-output subscriber set group of subscriber sets a manual signaling. The coordination module with the subscriber kit of the human signaling unit of the interface with the subscriber sets of the human signaling system either contains a series-connected block of current keys and a block of current receivers, the output of which is connected to the input of the microcomputer, the input of the block of current keys being connected to the output of the microcomputer, and the input-output of the block of current keys connected to the input-output of the subscriber set of the group of subscriber sets of manual signaling, or contains sequentially the distance matching transformer, bandpass filter, the first limiter amplifier and detector-integrator, the output of which is connected to the input of the microcomputer, and the second limiter amplifier and low-pass filter connected in series, the output of which is connected to the input of the matching transformer, and the input of the second limiter amplifier is connected to the output of the microcomputer, and the input-output of the matching transformer is connected to the input-output of the subscriber set of the group of subscriber sets of non-automated signaling.

 The relay block comprises an external serial trunk unit, at least two relay modules, an internal serial trunk unit, the inputs / outputs of which are connected to the inputs / outputs of the relay modules, connected by input-output to the input-output of the communication multiplexer-demultiplexer with a central monitoring station a microcomputer, the corresponding inputs and outputs of which are connected to the inputs and outputs of the external serial trunk unit and the inputs and outputs of the internal serial trunk unit, wherein each relay module contains a microcomputer, the input-output of which is connected to the input-output of the internal serial trunk unit, an amplifier, the input-output of which is connected to the input-output of the microcomputer, a bandpass filter, the input-output of which is connected to the input-output of the amplifier, at least at least two matching filters, the inputs and outputs of which are connected to the inputs and outputs of the subscriber sets of the subscriber set group of automated alarm systems, and a switch, the corresponding inputs and outputs of which are connected to the input-you the pass-band filter and the inputs / outputs of matching filters.

 The group of subscriber automated signaling kits contains object subscriber kits, each of which contains at least one lock loop and an object block containing microcomputers connected by inputs and outputs to the inputs and outputs of the microcomputer amplifier, main and backup power control unit, light and an audible alarm, an electronic key reader block, a lock control unit and a key loop control key block, the inputs and outputs of which are connected to the inputs and outputs of the lock circuits a bandpass filter, the input-output of which is connected to the input-output of the amplifier, and a matching filter, the corresponding inputs and outputs of which are connected to the input-output of the band-pass filter and the input-output of the relay unit, and (or) apartment subscriber sets, each of which contains an apartment concentrator, connected by an input-output to the input-output of the apartment concentrator, an intercom system, at least two apartment blocks connected by inputs and outputs to the inputs and outputs of the apartment concentrator, and connected by inputs and outputs to odes-outputs of each apartment block lock loops.

 At the same time, each apartment block of the apartment subscriber set contains a microcomputer and a light and sound alarm unit, an electronic key reader unit, a lock control unit, a serial trunk unit and a block of control keys for locking locks whose inputs and outputs are connected to the respective inputs and outputs of the microcomputer by a microcomputer connected to the inputs and outputs of the lock loops, and the apartment concentrator of the apartment subscriber set contains microcomputers connected by inputs and outputs to the corresponding to them the inputs and outputs of the microcomputer main and backup power control unit, status indication unit, amplifier, communication unit with intercom and serial trunk unit, the inputs and outputs of which are connected to the inputs and outputs of the serial trunk units of apartment blocks of the apartment subscriber set, matching filter, the input is the output of which is connected to the input-output of the relay unit, and a band-pass filter, the corresponding inputs and outputs of which are connected to the inputs and outputs of the matching filter and amplifier, the input-output of the unit Oka communication with the intercom is connected to the input-output of the intercom.

 Supply offered. fire alarm systems with a multiplexer-demultiplexer for communication with a telephone exchange, the input-output of which is connected to the input-output of one of the workstations on duty, and communication modems with a telephone exchange according to the number of sets of PBX equipment connected by inputs and outputs with the corresponding inputs and outputs of the multiplexer demultiplexer of communication with the PBX, as well as the introduction of a modem of communication with a central monitoring point, the input-output of which is connected to the input-output of the multiplexer-demultiplexer with associated with a central monitoring point, and at least one relay element containing the above elements, the inputs / outputs of which are connected to the corresponding inputs and outputs of a communication multiplexer-demultiplexer with a central monitoring point and inputs and outputs of a group of automated signaling subscriber sets that contain object subscriber sets and (or) apartment subscriber sets of the above composition, provide an increase in the number of levels of the architecture hierarchy a system of fire alarm systems and lead to an increase in the number of protected objects.

 The use of at least one relay unit in each set of PBX equipment, which contains an external serial trunk unit, at least two relay modules, an internal serial trunk unit connected by an input / output to the input / output of a communication multiplexer-demultiplexer with a central monitoring station the inputs and outputs of which are connected to the inputs and outputs of the relay modules, and the microcomputer, the corresponding inputs and outputs of which are connected to the inputs and outputs of the external serial block the main line and the inputs and outputs of the internal serial highway unit, each relay module containing a microcomputer, the input-output of which is connected to the input-output of the internal serial highway unit, an amplifier whose input-output is connected to the input-output of the microcomputer, a bandpass filter, the input the output of which is connected to the input-output of the amplifier, at least two matching filters, the inputs and outputs of which are connected to the inputs and outputs of the subscriber sets of the subscriber set group of the automated signaling system stations, and the switch, the corresponding inputs and outputs of which are connected to the input-output of the bandpass filter and the input-output of the matching filters, provides the possibility, firstly, of sequentially increasing the number of relay blocks used in the PBX equipment set with an increase in the number of subscriber sets included in the group subscriber sets of automated signaling, and, secondly, the use as subscriber sets of automated signaling not only the proposed object subscriber systems lectures and (or) apartment subscriber kits, but also previously installed on guarded objects subscriber kits of already existing automated fire alarm systems, for example, “Comet-K” and “Jupiter”. Both of these circumstances provide a significant increase in the number of connected subscriber sets and, consequently, an increase in the number of protected objects. In addition, the second circumstance, which allows the use of subscriber sets of existing systems in the proposed system, makes it possible not to equip the proposed object or apartment subscriber sets of those protected objects that were previously protected by these outdated automated fire and security alarm systems, which helps to reduce the total cost of the proposed system.

 Supply of the proposed fire alarm system with a group of subscriber sets of manual signaling, the introduction into each set of PBX equipment, at least one interface unit with subscriber sets of manual signaling, the inputs and outputs of which are connected to the corresponding inputs and outputs of the communication multiplexer-demultiplexer with a centralized point monitoring and the inputs and outputs of the group of subscriber sets of manual signaling, and the execution of the block is paired I am with subscriber manual alarm kits containing a galvanic isolation unit, a power and restart unit, an audible alarm unit, a microcomputer, the corresponding inputs and outputs of which are connected to the inputs and outputs of a galvanic isolation unit, connected to the central monitoring station by an input / output to a communication multiplexer-demultiplexer, a power supply and restart unit and an audible alarm unit, and at least one matching module with a subscription set of a non-automated alarm system of one and of the two above compositions, one input-output of which is connected to the input-output of the microcomputer and the second input-output is connected to the input-output of the subscriber set of the group of subscriber sets of non-automated signaling, provide, firstly, a significant increase in the number of connected subscriber sets due to the use subscriber sets of non-automated alarms and, consequently, an increase in the number of protected objects, and secondly, the possibility of using previously used anovlennyh on protected objects subscriber sets of the existing manual systems of fire alarm systems, such as "Neva-10", "Neva-10M" and "Phobos". The second circumstance makes it possible not to equip the proposed object or apartment subscriber sets of those protected objects that were previously protected by these outdated non-automated security and fire alarm systems, which reduces the total cost of the proposed system.

 Elimination of almost all the basic elements of its structure from the structure of the prototype system, except for a direct pair of a dedicated telephone line between the corresponding communication modem with the central monitoring station and the telephone exchange with the PBX, which is reserved at least one cheaper when subscribing to a dial-up telephone communication line, leads to a significant simplification of the design of the system and reduces its cost, almost without causing a decrease in the reliability of the proposed system.

 The aforementioned indicates the achievement of the technical result declared above due to the presence of the above distinctive features in the proposed fire alarm system.

 In FIG. 1 shows a structural diagram of the proposed fire alarm system, where 1 is a central monitoring station, 2 is an automated workstation for a duty officer, 3 is a computer network, 4 is a communication multiplexer-demultiplexer with a telephone exchange, 5 is a communication modem with a telephone exchange, 6 is a direct pair a dedicated telephone line, 7 - a switched telephone line, 8 - a set of PBX equipment, 9 - a communication modem with a central monitoring station, 10 - a communication multiplexer-demultiplexer with a central monitoring station, 11 - a subscriber interface unit domestic automatic signaling kits, 12 - relay unit, 13 - group of subscriber sets of human signaling and 14 - group of subscriber sets of automated signaling.

 In FIG. 2 shows a block diagram of a unit 11 for interfacing with subscriber sets of non-automated signaling in the case of using the well-known Neva-10 or Neva-10M security and fire alarm system as the last subscriber sets, where 15 are a microcomputer, 16 is a galvanic isolation unit, 17 - an audible alarm unit, 18 - a power supply and restart unit, 19 - a matching module with a subscriber set, 20 - a current key block and 21 - a current receiver block.

 In FIG. 3 shows a block diagram of a unit 11 for interfacing with subscriber sets of non-automated signaling in the case of using the well-known security and fire alarm system "Phobos" as the last subscriber sets, where 15 are a microcomputer, 16 is a galvanic isolation unit, 17 is a sound alarm unit, 18 is a block power supply and restart, 19 - matching module with a subscriber set, 22 and 23, respectively, the first and second amplifier-limiters, 24 - detector-integrator, 25 - low-pass filter, 26 - band-pass filter and 27 - matching tr an informant.

 Figure 4 shows a structural diagram of a group of 13 subscriber sets of human signaling systems in the case of using as the last subscriber sets of the well-known fire alarm systems "Neva-10", "Neva-10M" or "Phobos", where 28 is the subscriber set of human signaling , 29 - repeater, 30 - terminal device and 31 - lock loop.

 In FIG. 5 is a structural diagram of a relay unit 12, where 15 is a microcomputer, 26 is a bandpass filter, 32 is an external serial trunk unit, 33 is an internal serial trunk unit, 34 is a relay module, 35 is a switch, 36 is an amplifier and 37 is a matching filter.

 In FIG. 6 is a structural diagram of a group of 14 subscriber automated signaling kits containing object subscriber kits, where 15 are a microcomputer, 26 is a bandpass filter, 31 is a blocking loop, 36 is an amplifier, 37 is a matching filter, 38 is an object subscriber set, 39 is an object block , 40 - main and backup power control unit, 41 - light and sound alarm unit, 42 - electronic key reader unit, 43 - lock control unit and 44 - blocking control key loop cable block.

 In FIG. 7 is a structural diagram of a group of 14 subscriber automated signaling kits containing apartment subscriber kits, where 15 are a microcomputer, 26 is a bandpass filter, 31 is a blocking loop, 36 is an amplifier, 37 is a matching filter, 40 is a main and backup power control unit, 41 - a light and sound alarm unit, 42 - an electronic key reader unit, 43 - a lock control unit, 44 - a lock loop control key block, 45 - an apartment subscriber set, 46 - an apartment concentrator, 47 - an apartment unit, 48 - an intercom system, 49 - blo to the serial line, 50 - status indication unit and 51 - communication unit with intercom.

 In FIG. Figure 8 shows a block diagram of a group of 14 subscriber automated alarm kits in the case of using the well-known Comsta-K or Jupiter fire alarm systems as the last subscriber kits, where 31 is a blocking loop, 52 is a subscriber set of automated alarms, 53 is a hub and 54 are an individual respondent.

 The proposed security and fire alarm system, the structural diagram of which is shown in Fig. 1, contains one or more points 1 of centralized monitoring, each of which contains at least one workstation (AWS) 2 on duty, made in the form of a personal computer, computer network 3 connecting the workstation 2 on duty, and the multiplexer-demultiplexer 4 communication with the PBX, the input-output of which is connected to the input-output of one of the workstation 2 on duty. AWP 2 on duty can be performed on the basis of a standard personal computer operating under the operating system, for example, Win 95, Win 98, Win NT or Win 2000. The personal computer AWP 2 on duty must have at least one COM port for connecting an external modem. As a computer network 3 used for communication between different workstations 2 of a guard on duty within the same central monitoring point 1, a typical local computer network can be used. As the computer network 3 used for communication between the workstation 2 on duty of various points 1 of centralized monitoring, a typical corporate computer network can be used. Both local and corporate computer networks can be built on the basis of hubs (hubs), switches, routers, modems, bridge modems and other standard data transmission equipment.

 As the practice of operating computerized, but non-automated security and fire alarm systems has shown, one operator on duty from his AWP 2 on duty can only process signals from 400-1000 alarm loops (depending on the load during mass arming and disarming), then as a point 1 of centralized monitoring of a large urban area, it must collect signaling information from protected objects, the number of which can reach 10,000. Combining several AWPs on duty within one The items 1 centralized monitoring computer network 3, which is used as a typical local area network, it allows to increase the number of protected objects equipped subscriber sets groups 13 of subscriber sets a manual signaling. The interaction of the workstation 2 on duty within one point 1 of centralized monitoring through a local area network 3 allows you to flexibly distribute the load on each duty operator. The combination of several points 1 of centralized monitoring and their workstation 2 on duty by a computer network 3, which is used as a typical corporate computer network, allows, on the one hand, to combine several independent points 1 of centralized monitoring of various geographically dispersed services of a large urban area and, with on the other hand, transmit alarms or fires to central monitoring points 1 of the relevant services, for example, transmitting a property signal evogy to the fixed guard department, a signal for calling the police unit to the fixed police department, and fire alarms and call the fire department to the nearest fire department. The interaction of several workstation 2 on duty as part of one point 1 centralized monitoring or various points 1 centralized monitoring occurs using a local or corporate computer network 3, respectively, by transmitting and receiving network packets in accordance with the IPX / SPX or TCP / IP protocol without creating shared network drives , which allows the use of low-speed communication channels having a fairly low cost.

 The composition of the proposed system (see Fig. 1) also includes at least one set 8 of PBX equipment, modems 5 of communication with the PBX by the number of sets 8 of PBX equipment, connected by inputs and outputs with the corresponding inputs and outputs of the communication multiplexer-demultiplexer 4 from a telephone exchange, a group of 13 subscriber sets of automatic signaling systems according to the number of sets of 8 ATS equipment, connected by inputs and outputs to the corresponding inputs and outputs of sets 8 of PBX equipment, and a group of subscriber sets 14 of automated signaling by number in sets of 8 PBX equipment connected to the inputs-outputs of inputs-outputs 8 sets PBX equipment. In addition, the proposed system contains direct pairs 6 of a dedicated telephone line for the number of sets 8 of PBX equipment and at least one dial-up telephone line 7 for each set of 8 PBX equipment, which connects the inputs and outputs of sets 8 of PBX equipment and inputs outputs of the corresponding modems 5 communication with the PBX.

 Each set 8 of PBX equipment contains (see Fig. 1) a communication modem 9 with a central monitoring point, the inputs and outputs of which are connected to a direct pair b of a dedicated telephone line and a switched telephone line 7, at least one interface unit 11 with subscriber sets of human signaling, connected by inputs / outputs to the inputs and outputs of group 13 of subscriber sets of human signaling, and at least one relay unit 12, the input-output of which is connected to the input-output Group 14 subscriber sets of automated signaling. In addition, each set 8 of PBX equipment contains a communication multiplexer-demultiplexer 10 with a central monitoring station, the corresponding inputs and outputs of which are connected to the inputs and outputs of a communication modem 9 with a central monitoring station, interfacing units 11 with subscriber automatic signaling sets, and one of the units 12 relay, the other inputs and outputs of which are connected to the inputs and outputs of the remaining blocks 12 relay. As a multiplexer-demultiplexer 4 for communication with the PBX and a multiplexer-demultiplexer 10 for communication with a central monitoring station, two or four channel multiplexers from RAD can be used, for example, of the types STM-2 and STM-4, respectively. As a modem 5 for communication with the PBX and modem 9 for communication with a central monitoring station, modems of the ZyXEL U-336S type can be used.

 Block 11 interfacing with subscriber sets of manual signaling, the structural diagram of which is shown in figure 2, is used to pair with subscriber sets of known fire alarm systems such as "Neva-10" or "Neva-10M" and contains connected input / output to the multiplexer a communication demultiplexer 10 with a central monitoring station (see Fig. 1), a galvanic isolation unit 16, a power and restart unit 18, an audible alarm unit and a microcomputer 15, the corresponding inputs and outputs of which are connected to the strokes-outputs of the galvanic isolation unit 16, the power and restart unit 18 and the audible alarm unit 17. Microcomputer 15 of the block 11 for interfacing with subscriber sets of non-automated signaling can be implemented on the basis of a single-chip microcontroller, for example, Atmel type AT89C53.

 In addition, the block 11 for interfacing with subscriber sets of human signaling contains at least one module 19 matching with the subscriber set of human signaling, each of which contains a series-connected block 20 of current keys and block 21 of current receivers, the output of which is connected to the input of microcomputer 15, and the input block 20 current keys connected to the output of the microcomputer 15, and the input-output of block 20 current keys connected to the input-output of the subscriber set 13 groups of subscriber sets atizirovannoy alarm.

 Block 11 interfacing with subscriber sets of non-automated signaling, the structural diagram of which is shown in Fig. 3, is used for interfacing with subscriber sets of the well-known security and fire alarm system of the type "Phobos" and contains an input / output to communication multiplexer-demultiplexer 10 with a central monitoring station (see Fig. 1) galvanic isolation unit 16, power and restart unit 18, audible alarm unit 17 and microcomputer 15, the corresponding inputs and outputs of which are connected to the outputs s galvanic decoupling unit 16, power unit 18 and the restart unit 17 and audible alarm. Microcomputer 15 of the block 11 for interfacing with subscriber sets of non-automated signaling can also be implemented on the basis of a single-chip microcontroller, for example, Atmel type AT89C53.

 In addition, the block 11 for interfacing with subscriber sets of human signaling (see Fig. 3) contains at least one module 19 matching with the subscriber set of human signaling, each of which in this case contains a serially connected matching transformer 27, a bandpass filter 26, the first amplifier a limiter 22 and a detector-integrator 24, the output of which is connected to the input of the microcomputer 15 of the block 11 for interfacing with subscriber sets of non-automated signaling, as well as sequentially connected an internal second amplifier-limiter 23 and a low-pass filter 25, the output of which is connected to the input of the matching transformer 27, the input of the second amplifier-limiter 23 connected to the output of the microcomputer 15, and the input-output of the matching transformer 27 connected to the input-output of the subscriber set of group 13 subscriber sets of human signaling.

 Group 13 of subscriber sets of human signaling (Fig. 4) contains subscriber sets 28 of human signaling of existing fire alarm systems, for example, such as "Neva-10", "Neva-10M" or "Phobos", each of which contains a relay 29 the input-output of which is connected to the input-output of the matching module 19 with the subscriber set of human signaling of the corresponding unit 11 for interfacing with the subscriber sets of human signaling, interconnected inputs mi outputs, at least one lock cable 31 and one terminal device 30, the second input-output of which is connected to the input-output of the relay 29.

 The relay unit 12, the structural diagram of which is shown in FIG. 5, contains at least two modules 32 of the external serial line connected by an input-output to the input-output of a communication multiplexer-demultiplexer 10 with a central monitoring point (see FIG. 1) 34 relay, block 33 of the internal serial line, the inputs and outputs of which are connected to the inputs and outputs of the modules 34 relay, and microcomputers 15, the corresponding inputs and outputs of which are connected to the inputs and outputs of the block 32 of the external serial master whether the inputs and outputs of block 33 of the internal serial line, each relay module 34 contains a microcomputer 15, the input-output of which is connected to the input-output of the block 33 of the internal serial line, an amplifier 36, the input-output of which is connected to the input-output of the microcomputer 15, a band-pass filter 26, the input-output of which is connected to the input-output of the amplifier 36, at least two matching filters 37, the inputs and outputs of which are connected to the inputs and outputs of the subscriber sets of group 14 of the subscriber sets of automated system nalizatsii, and a switch 35, the corresponding inputs and outputs of which are connected to the input-output of the band-pass filter 26 and the input-output of the matching filters 37. The microcomputer 15 of the relay unit 12 can be implemented on the basis of a single-chip microcontroller, for example, Atmel type AT89C53, and as microcomputer 15 of the relay module 34 can be used single-chip microcontroller, for example, Atmel type AT90C4433.

 Each object subscription set 38 included in the group 14 of subscription sets of automated signaling 38 includes (FIG. 6) at least one lock loop 31 and object block 39, which contains microcomputers 15 connected by inputs and outputs to inputs and outputs of microcomputer 15 amplifier 36, the main and backup power control unit 40, the light and sound alarm unit 41, the electronic key reader unit 42, the lock control unit 43 and the lock loop control key unit 44, the input-output of which is connected to the input mi-outputs of loops 31 locks. In addition, the object block 39 contains a band-pass filter 26, the input-output of which is connected to the input-output of the amplifier 36, and a matching filter 37, the corresponding inputs and outputs of which are connected to the input-output of the band-pass filter 26 and the input-output of the relay unit 12 (see Fig. 5).

 Each apartment subscriber set 45 included in the group of 14 subscriber automated signaling sets (Fig. 7) contains an apartment concentrator 46 connected by an input-output to the input-output of an apartment concentrator intercom 48, at least two apartment blocks 47 connected by inputs / outputs to the inputs and outputs of the apartment concentrator 46, and lock cables 31 connected to the inputs and outputs of each apartment block 47. Each apartment block 47 of the apartment subscriber set 45 contains a microcomputer 15 and a light and sound signaling unit 41, an electronic key reader unit 42, a lock control unit 43, a serial line unit 49 and a control key unit 44 connected by inputs / outputs to the respective inputs / outputs of the microcomputer 15 lock loops, the inputs and outputs of which are connected to the inputs and outputs of the loops 31 of the lock. The apartment concentrator 46 of the apartment subscriber set 45 contains a microcomputer 15 connected by inputs and outputs to the corresponding inputs and outputs of the microcomputer 15, the main and backup power control unit 40, the status indication unit 50, the amplifier 36, the intercom unit 51, and the serial trunk unit 49, inputs - the outputs of which are connected to the inputs / outputs of blocks 49 of the serial highway of apartment blocks 47 of the apartment subscriber set 45, matching filter 37, the input-output of which is connected to the input-output of the block 12 retran 5 (see FIG. 5), and a band-pass filter 26, the corresponding inputs and outputs of which are connected to the inputs and outputs of the matching filter 37 and amplifier 36, the input-output of the communication unit 51 with the intercom being connected to the input-output of the intercom 48. As microcomputer 15 of the apartment concentrator 46 and microcomputer 15 of the apartment block 47 can use a single-chip microcontroller, for example, Atmel type AT90C4433.

 Group 14 of subscription sets of automated alarm systems (Fig. 8) also contains subscription sets 52 of automated alarm systems of existing fire alarm systems, for example, such as "Comet-K" or "Jupiter", each of which contains a hub 53, the input-output of which is connected with the input-output of the relay module 34 of the corresponding relay unit 12 (see Fig. 5), interconnected by the input-outputs, at least one lock cable 31 and one individual transponder 54, the second input-output of which is connected nen with input-output of the concentrator 53.

 The proposed fire alarm system operates as follows.

 Prior to the start of operation of the system with workstation 2 on duty (Fig. 1), data is entered on the protected objects and peripheral equipment on duty connected to specific workstation 2. When operating the fire alarm system, an operational update of this data is performed through the computer network 3 without violating the state of the security system. When the system is operated, after turning on the power of all the equipment, the operating system and the work program are automatically loaded into the workstation 2 on duty. The interaction of several workstation 2 on duty as part of a single point 1 centralized monitoring or various points 1 centralized monitoring is carried out using a local or corporate computer network 3 by exchanging network packets, for example, in accordance with the IPX / SPX or TCP / IP protocol. A work program with a workstation 2 on duty through a telephone exchange with a telephone exchange multiplexer-demultiplexer 4, a telephone exchange with a telephone exchange, a direct couple 6 of a dedicated telephone line, a communication modem 9 with a central monitoring station and a communication multiplexer-demultiplexer 10 with a central monitoring station initialize the pairing units 11 with subscriber sets of human signaling and relay units 12, that is, checks them and loads the operating parameters. On a command from the workstation 2 on duty through the blocks 11 pairing with the subscriber sets of human signaling, the status of all repeaters 29 (see Fig. 4) included in the subscriber sets 28 of the automatic signaling group 13 of the subscriber sets of the human signaling is read out and automatic synchronization of the workstation 2 is on according to the read condition. Automatic synchronization reduces the time for a break in security during the transition from the operation of outdated security systems to the operation of the proposed security and fire alarm system to a few minutes.

 Arming and disarming subscriber sets 28 of non-automated alarms is as follows. From any of the workstation 2 of the duty officer of any of the central monitoring points 1 (within the rights granted by the system administrator), the duty officer checks the authority of the person responsible for arming or disarming, checking his last name, first name, middle name, key number and password with contained in the database of AWP 2 on duty. If the specified information coincides, the attendant from the keyboard of the automated workplace of the attendant 2 through the multiplexer-demultiplexer 4 communicates with the PBX, modem 5 communicates with the PBX, a direct pair 6 of the dedicated telephone line and set 8 of the PBX equipment issues a command through which the relay 29 and terminal devices 30 of the subscriber set 28 manual alarms switch to the desired state.

 Block 11 pairing with subscriber sets of non-automated signaling in the case of using as the last subscriber sets of fire and security alarm systems of the type "Neva-10" or "Neva-10M" (figure 2) works as follows. When you turn on the power, the power supply and restart unit 18 brings the microcomputer 15 to its original state. At the same time, the microcomputer 15 of the block 11 for interfacing with the subscriber sets of non-automated signaling conducts internal testing and, if it is positive, awaits the polling commands received from the standby AWP 2 through the multiplexer-demultiplexer 4 of communication with the PBX, modem 5 of communication with the PBX, direct couple 6 of the dedicated telephone line communication, communication modem 9 with a central monitoring station, a multiplexer-demultiplexer 10 communication with a central monitoring station (see Fig. 1) and a galvanic isolation unit 16. In response to the first interrogation command, the microcomputer 15 responds through the galvanic isolation unit 16 in the opposite direction about the need to load the operating state parameters. If there are no polling commands within 30 seconds, the microcomputer 15 turns on the audible alarm unit 17, notifying maintenance personnel of the inoperative state of the system. After receiving the standby operating parameters from the AWP 2, the microcomputer 15 switches to the operating mode, that is, through the coordination module 19 with the subscriber kit of the human signaling, it starts interacting with the relay 29 of the subscriber kit 28 of the human signaling (see Fig. 4), transmitting to it through the block 20 current keys of the start, arming and disarming commands and receiving from it through the block 20 current keys and block 21 current receivers shift pulses and status data of the relay 29.

 Block 11 interface with the subscriber sets of human signaling in the case of using as the last subscriber sets the existing security and fire alarm system of the type "Phobos" (figure 3) works as follows. When the power is turned on, the power supply and restart unit 18 brings the microcomputer 15 of the interface unit 11 to the subscriber sets of human signaling to its original state. Microcomputer 15 conducts internal testing and, if it is positive, awaits polling commands received from the duty station AWP through the ATX communication multiplexer-demultiplexer 4, the PBX communication modem 5, the dedicated telephone line pair 6, the central communications monitoring modem 9 , a multiplexer-demultiplexer 10 for communication with a central monitoring station (see Fig. 1) and a galvanic isolation unit 16. If there are no polling commands within 30 seconds, the microcomputer 15 turns on the audible alarm unit 17, notifying maintenance personnel of the inoperative state of the system. With the workstation 2 on duty through the galvanic isolation unit 16, the microcomputer 15 receives the polling command of the relay 29 indicating the number of the subscription kit 28 of the automated signaling system to be polled (see Fig. 4). Microcomputer 15 of the unit 11 for interfacing with subscriber sets of manual signaling through a second amplifier-limiter 23 of the module 19 matching with the subscriber set of manual signaling of the indicated number, a low-pass filter 25 and a matching transformer 27 transmits interrogation codes and control commands to the interrogated relay 29 of the subscriber set 28 of non-automated signaling (see figure 4). The response codograms from the interrogated relay 29 through the matching transformer 27, the bandpass filter 26, the first amplifier-limiter 22 and the detector-integrator 24 are received in the microcomputer 15, combined with the number of the interrogated relay 29 and transmitted through the galvanic isolation block 16 in the opposite direction to the workstation 2 on duty .

 Groups of 14 subscriber automated signaling kits (see Fig. 1) are protected through relay units 12 of set 8 of ATS equipment. Block 12 relay works as follows.

 The microcomputer 15 of the relay unit 12 (Fig. 5) conducts internal testing and, with a positive result, expects polling commands that can be received either from the standby 2 through the communication multiplexer-demultiplexer 4 with the exchange, modem 5 with the exchange, a direct pair 6 of a dedicated telephone line communication, communication modem 9 with the central monitoring station, multiplexer-demultiplexer 10 communication with the central monitoring station and the external serial trunk unit 32 of the relay unit 12, or from one of the relay units 12, we use wow as the head. Upon receipt of the polling command through block 32 of the external serial line of the microcomputer 15 of the relay unit 12, it informs the duty officer AWP 2 about the need to load the operating state parameters and the relay unit 12 switches to the main mode of operation. Having received an ordered list of serial numbers of the slave relay units 12 from the duty station AWP 2, the relay relay head unit 12 further provides relaying of commands to the slave relay blocks 12 and responses from the slave relay blocks 12, as well as periodic monitoring of their status. Upon receipt of a polling command from the relay head unit 12, the slave relay unit 12 switches to a slave mode of operation, that is, it awaits polling commands and transmits status messages to the relay relay head unit 12, from which the first polling command came. The microcomputer 15 of the relay head unit 12 and the slave relay units 12 receive, from the duty station AWP 2, the information necessary for the operation of each relay module 34, that is, about the type of terminal equipment, its current state and serial number. This ensures the imitability of the proposed system, since when an unauthorized connection of another peripheral device is not intended for use in it, an ALARM-SOBOTAGE message is generated. These parameters are transmitted through the internal serial trunk unit 33 to the microcomputer 15 of each of the relay modules 34. The microcomputer 15 of the relay module 34 through the amplifier 36, the bandpass filter 26, the switch 35 and the matching filters 37 transmits to the subscriber sets of the group 14 of the automated signaling subscriber sets polling signals with parameters corresponding to the types of subscriber sets connected to this relay module 34. Information about the current state, arming, disarming and alarm is received from subscriber sets of group 14 of subscription sets of automated signaling through matching filters 37, switch 35, band pass filter 26, amplifier 36 in microcomputer 15 of relay module 34, where it is decrypted and, if necessary through the internal 33 block of the serial line it is transmitted to the microcomputer 15 of the relay unit 12, and then further to the nodes of the upper hierarchy up to the workstation 2 on duty. The microcomputer 15 of the relay unit 12 through the internal serial trunk unit 33 periodically interrogates the microcomputer 15 of all relay modules 34, monitoring their serviceability and relaying all messages about changes in their status to the duty station AWP 2.

 Included in the group of 14 subscriber sets of automated signaling (Fig. 6) object subscriber set 38 operates as follows. When the power is turned on, the main and standby power control unit 40 brings the microcomputer 15 of the object unit 39 to its initial state. The microcomputer 15 of the object block 39 performs internal testing and, with a positive result, expects a polling command. When received from the relay unit 12 through the matching filter 37, the band-pass filter 26 and the amplifier 36 of the microcomputer polling commands 15 of the object block 39 goes into operating mode. In the operating mode, the microcomputer 15 of the object block 39 controls the block 42 of the electronic key reader, and also through the block 44 of the control keys of the lock loops all lock loops 31 of the object subscriber set 38, taken under protection. For arming, the user of the object subscriber kit 38 touches the electronic key reader unit 42 with an electronic key. The microcomputer 15 of the object block 39 compares the read key code with the value stored in its memory and, if they coincide, starts the arming procedure by displaying on the light and sound block 41 the number of loops 31 for blocking the object subscriber set 38, which are not ready for protection. After the set time has passed, the microcomputer 15 of the object unit 39 through the amplifier 36, the bandpass filter 26 and the matching filter 37 transmits to the relay unit 12 an encrypted message with the electronic key number and a list of protected and unprotected (faulty or not taken under protection) loops 31 for blocking the object subscriber set 38. In case of violation of the loop 31 of the blocking of the object subscriber set 38, provided for the alarm or fire alarm of the microcomputer 15 of the object block 39 immediately goes into alarm gi. In case of violation of the lock loop 31 provided for the security alarm, the microcomputer 15 of the object block 39 awaits disarming during the time provided for removal. The numbers of the activated lock loops 31 are displayed on the light and sound signaling unit 41, if this is not prohibited due to inappropriateness, for example, in the case of issuing a stealth alarm when the user presses the object subscriber kit 38 alarm buttons. In any case, the message with the number of loops 31 for blocking the object subscriber set 38, which went into alarm state, is immediately transmitted to the relay unit 12, which relayes it to the workstation 2 on duty. To disarm, the user of the object subscriber kit 38 touches the electronic key reader unit 42 with the electronic key. The microcomputer 15 of the object block 39 compares the key code with the value stored in the memory and, if they coincide, giving a command to the lock control unit 43, opens the lock (if provided). In addition, it transfers the security loops 31 of the lock to the disarming state, and the loop 31 of the alarm blocking lock to the armed state (if provided). In this case, the fire alarm blocking cables 31 are not disarmed. Then, the microcomputer 15 of the object block 39 through the amplifier 36, the band-pass filter 26 and the matching filter 37 transmits to the relay block 12 an encrypted message about the authorized opening of the protected object with the electronic key number and the list of disabling and left-armed loops 31 of blocking the object subscriber set 38 .

 Apartment subscriber set 45, included in group 14 of subscription sets of automated signaling (Fig.7), works as follows. When the power is turned on, the main and backup power control unit 40 brings the microcomputer 15 of the apartment concentrator 46 to its original state. The microcomputer 15 of the apartment concentrator 46 conducts internal testing and, with a positive result, waits for survey teams. When received through a matching filter 37, a band-pass filter 26 and an amplifier 36 of the polling commands from the microcomputer relay unit 12 of the apartment concentrator 46, it enters the operating mode. In the operating mode, the microcomputer 15 of the apartment hub 46 through the block 49 of the serial highway interrogates all connected and programmed apartment blocks 47, and through the block 51 of the communication with the intercom, intercom 48. In the absence of a response signal after several repeated requests from any apartment block 47 or intercom 48 microcomputers 15 of the apartment hub 46 through the amplifier 36, the bandpass filter 26 and the matching filter 37 transmits an encrypted error message to the relay unit 12. When the supply voltage is supplied from the apartment concentrator 46, the microcomputer 15 of the apartment block 47 conducts internal testing and, with a positive result, awaits interrogation commands. Upon receipt of the apartment concentrator 46 from the microcomputer 15 through the blocks 49 of the serial line of the polling commands, the apartment block 47 goes into working condition. Arming, disarming and alarming by the apartment unit 47 takes place in the same way as described for object unit 39 (see Fig. 6), and messages about the change in the status of the apartment unit 47 through the unit 49 serial line and apartment the hub 46 is transferred to the relay unit 12 and then to the nodes of the upper hierarchy up to the workstation 2 on duty.

 A subscriber set 52 of automated signaling, which is part of a group of 14 subscriber sets of automated signaling (Fig. 8), in the case of the use of the Comet-K or Jupiter security-fire systems as the last subscriber set, works as follows. After turning on the power, the hub 53 supplies power to the individual transponders 54, transmits to the relay unit 12 a message about the current state of the subscriber set 52 of the automated alarm system and switches to standby mode. Arming and disarming is performed using dialers, key fobs or keypads included in the subscriber set 52 of an automated alarm of one type or another. Messages about alarms and changes in the state of the subscriber set 52 of the automated alarm system are transmitted to the relay unit 12 according to the protocol used in the Comet-K system.

 The operational experience of fire alarm systems showed that the least reliable element of the system is a direct pair 6 of a dedicated telephone line (see figure 1). In case of damage to such a communication line, repair work is carried out exclusively by specialized organizations and, as a rule, during working hours, and the objects are protected by a fire alarm system around the clock. To increase reliability in the proposed system, a switched telephone line 7 is used as a backup. Inter-station communication with such lines is currently carried out using redundant fiber-optic communication lines, which are more reliable than galvanic cable communication lines allocated for direct pairs. Automatic transition to the backup switched telephone line 7 in the event of a failure of the main direct pair 6 of the dedicated telephone line is made by the modem 5 of communication with the PBX and modem 9 of communication with the central monitoring station, having separate inputs and outputs for connecting as a direct pair 6 of a dedicated telephone line communication, and to a switched telephone line 7, for example, type ZyXEL U-1496S or ZyXEL U-336S. At the same time, the required parameters of the exchange and the phone number by which you need to establish a backup connection are recorded in the non-volatile memory of the modems. Switching to the backup switched telephone line 7 by the modem 5 for connecting with the exchange and the modem 9 with the central monitoring station is carried out automatically after one of them has made a fixed number of unsuccessful attempts to restore communication through direct pair 6 of the dedicated telephone line.

 Improving the reliability of the proposed fire alarm system is provided by periodically monitoring the health of all communication lines and testing all the main components of the system, up to each single-chip microcomputer. Information about the detected malfunctions goes to the workstation 2 on duty, where it is documented and displayed by light and sound indicators. After replacing a faulty element, the fire alarm system automatically provides quick restoration of the operating mode. If the system has more than one workstation 2 on duty, a health monitoring system can be enabled. The regular or emergency shutdown of the workstation 2 on duty is documented and indicated by a sound and light signal. If it is necessary to replace the personal computer included in the workstation 2 on duty, the system allows you to read the current state from the equipment installed on the PBX and automatically synchronize the state of the workstation 2 on duty using this state. These features of the proposed system can reduce the time of interruptions in protection related to the identification and elimination of malfunctions.

 Thus, the proposed fire and security alarm system allows centrally servicing up to 96,000 guarded facilities equipped with up to 4 interlock loop cables for automated alarm subscriber systems, for example, the proposed object and apartment subscriber kits and subscription kits of the existing Comet-K automated fire and alarm systems or "Jupiter", as well as up to 3200 secured objects equipped with subscription sets of existing non-automatic Baths systems fire alarm "Neva-10" or "Neva-10M", and up to 7680 protected objects equipped subscriber sets existing manual system fire alarm "Phobos". This indicates a significant increase in the number of protected objects in comparison with fire alarm systems known from the current state of the art. According to the calculations of the applicant’s specialists, the cost, for example, of a set of equipment installed on a telephone exchange, in terms of a single loopback cable, can be 11.7 rubles for the proposed system, whereas the same cost for the existing Akhtuba-type fire alarm system built in According to the patent protecting the prototype system, it reaches 185.5 rubles. An even greater decrease in the cost of a set of equipment installed on a telephone exchange, in terms of a single loopback loop, is observed in comparison with the existing non-automated security and fire alarm systems Neva-10M and Phobos, for which this value is 220 and 387.5 rubles, respectively . The indicated indicates a significant reduction in the cost of the proposed fire alarm system.

Claims (9)

1. A fire alarm system containing at least one central monitoring station containing at least one duty station workstation made in the form of a personal computer, a computer network connecting at least one duty station workstation automatic telephone exchange (ATS), including a multiplexer-demultiplexer of communication with a central monitoring station, and a group of subscription sets of automated signaling, connected by inputs and outputs to inputs and outputs of PBX equipment kits, characterized in that it is equipped with a multiplexer-demultiplexer of communication with the PBX, the input-output of which is connected to the input-output of the automated workstation of the person on duty, communication modems with the PBX according to the number of sets of PBX equipment connected inputs and outputs with the corresponding inputs and outputs of the multiplexer-demultiplexer of communication with the PBX, and a group of subscriber sets of human signaling, connected by inputs and outputs to the corresponding input am outlets of PBX equipment sets, and each PBX equipment set contains a communication modem with a central monitoring point, the input-output of which is connected to the central monitoring observation point multiplexer-demultiplexer input-output, at least one interface unit with non-automated signaling subscriber sets the inputs and outputs of which are connected to the corresponding inputs and outputs of a communication multiplexer-demultiplexer with a central monitoring station and inputs and outputs of the abone group nts sets of non-automated signaling, and at least one relay unit, the inputs and outputs of which are connected to the corresponding inputs and outputs of the communication multiplexer-demultiplexer with a central monitoring point and the inputs and outputs of the group of automated signaling subscriber sets, each communication modem with a PBX and the corresponding communication modem with the central monitoring station are interconnected by a direct pair of a dedicated telephone line and at least one switched telephone on line of communication. 2. The system according to claim 1, characterized in that the unit for interfacing with subscriber sets of non-automated signaling comprises a galvanic isolation unit, a power and restart unit, an audio signaling unit, a microcomputer, and corresponding inputs - the outputs of which are connected to the inputs and outputs of the galvanic isolation unit, the power supply and the recharge and the sound signaling unit, and at least one matching module with the subscriber unit manual signaling box, one input-output of which is connected to the input-output of the microcomputer and the second input-output is connected to the input-output of a subscriber set of a group of subscriber sets of human signaling. 3. The system according to claims 1 and 2, characterized in that the coordination module with the subscriber set of manual signaling unit for interfacing with the subscriber sets of manual signaling contains series-connected block of current keys and block of current receivers, the output of which is connected to the input of the microcomputer, and the input of the block of current of keys is connected to the output of the microcomputer, and the input-output of the current-key block is connected to the input-output of the subscriber set of the group of subscriber sets of non-automated alarms and. 4. The system according to claims 1 and 2, characterized in that the matching module with the subscriber set of human signaling unit for interfacing with the subscriber sets of human signaling contains serially connected matching transformer, bandpass filter, first amplifier-limiter and detector-integrator, the output of which is connected to the input of a microcomputer, and a second amplifier-limiter and a low-pass filter connected in series, the output of which is connected to the input of a matching transformer, d of the second amplifier-limiter connected to an output of the microcomputer, and input-output matching transformer is connected to the input-output subscriber set group of subscriber sets a manual signaling. 5. The system according to claim 1, characterized in that the relay unit comprises an external serial trunk unit, at least two relay modules, an internal serial trunk unit, inputs connected to an input-output to the input-output of a communication multiplexer-demultiplexer with a central monitoring point - the outputs of which are connected to the inputs and outputs of the relay modules, and the microcomputer, the corresponding inputs and outputs of which are connected to the inputs and outputs of the external serial trunk unit and the inputs and outputs of the external unit a serial line, and each relay module contains a microcomputer, the input-output of which is connected to the input-output of the internal serial main unit, an amplifier whose input-output is connected to the input-output of the microcomputer, a bandpass filter, the input-output of which is connected to the input-output an amplifier, at least two matching filters, the inputs and outputs of which are connected to the inputs and outputs of the subscriber sets of the subscriber set of automated signaling systems, and the switch, the corresponding inputs are the outputs of which are connected to the input-output of the band-pass filter and the input-output of matching filters. 6. The system according to claim 1, characterized in that the group of subscriber sets of automated signaling contains object subscriber sets, each of which contains at least one lock cable and an object block containing microcomputers connected by inputs and outputs to the inputs and outputs of the microcomputer amplifier, control unit for main and backup power supply, light and sound signaling unit, electronic key reader unit, lock control unit and control unit blocking lock cables, whose input-outputs are connected with the inputs and outputs of the lock loops, a band-pass filter, the input-output of which is connected to the input-output of the amplifier, and a matching filter, the corresponding inputs and outputs of which are connected to the input-output of the band-pass filter and the input-output of the relay unit. 7. The system according to claim 1, characterized in that the group of subscriber sets of automated alarm systems contains apartment subscriber sets, each of which contains an apartment concentrator connected by an input-output to the input-output of an apartment concentrator, an intercom system, at least two apartment units connected inputs and outputs to the inputs and outputs of the apartment concentrator, and interlocking cables connected to the inputs and outputs of each apartment block. 8. The system according to claims 1 and 7, characterized in that each apartment block of the apartment subscriber set contains a microcomputer and a light and sound alarm unit, an electronic key reader unit, a lock control unit, a serial block connected by inputs and outputs to the respective inputs and outputs of the microcomputer trunk and block control keys lock loops, the inputs and outputs of which are connected to the inputs and outputs of the lock loops. 9. The system according to claims 1 and 7, characterized in that the apartment concentrator of the apartment subscriber set contains microcomputers connected by inputs and outputs to the corresponding inputs and outputs of the microcomputer, the main and backup power control unit, a status indication unit, an amplifier, a communication unit with an intercom and a serial line unit, the inputs / outputs of which are connected to the inputs / outputs of the serial line units of the apartment blocks of the apartment subscriber set, a matching filter, the input-output of which is connected to the input-you Odom relay unit, and a bandpass filter, corresponding to inputs and outputs of which are connected to the inputs-outputs of the matching filter and an amplifier, and an intercom input-output unit is connected to the input-output doorphone.

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