RU2207631C2 - Set of equipment for automatic tepephone exchange for safety-fire alarm system - Google Patents

Abstract

FIELD: systems for safety-fire alarm, possibly data transmission from user equipment sets to station for centralized supervision in apparatuses for centralized protection of property and for fire warning in objects distributed through busy telephone and optical fiber communication lines. SUBSTANCE: set of equipment includes in addition group of access devices and group of retransmitters with group of access devices. Each device has local network controller, microprocessor unit for transforming interfaces and linear matching unit, automatic telephone exchange with standard MKKTT G.703. EFFECT: possibility for working with equipment of any modern electronic automatic telephone exchanges mutually connected through optical-fiber communication lines, enlarged zone of protecting objects by means of each centralized supervision station in operational zone of automatic telephone exchanges having no direct copper telephone communication lines with centralized supervision station, possibility for organizing any structure of global communication network in equipment set of automatic telephone exchange of fire alarm system between local communication networks. 3 dwg

Description

 The invention relates to security and fire alarms and can be used to transmit information from subscriber kits to central monitoring consoles in centralized property and fire protection devices of objects dispersed through busy telephone and fiber-optic communication lines.

 A known set of PBX hardware alarm system "Cyclone" (TU 25-08.430-80, TU 25-08.431-80, TU 25-08.432-80, Security Technique 1/94), containing groups of concentrators connected in parallel with the corresponding dedicated communication line with central monitoring station (CMS), and all the concentrators in the group are additionally connected to each other in parallel with the control bus.

 The insufficient reliability of the set of equipment for this security alarm system is associated with a large number of false alarms due to a decrease in the level of the continuous frequency signal transmitted from the guarded object when the telephone communication line deteriorates.

 A known set of PBX equipment for the Comet-K security and fire alarm system (II1.220.003. TU, Security Equipment 1/94) is connected to a group of subscriber kits and a central monitoring console and consisting of a linear interface unit with a group of high-pass filters and devices broadcasts.

 The disadvantages of this scheme are the low functional reliability, insufficient simulation stability and information content, the inability to function on fiber-optic communication lines.

 The closest in technical essence to the proposed solution is a set of PBX equipment for a security and fire alarm system (RF Patent 2110094), containing a local communication network, a group of concentrators, the first group of inputs / outputs of each concentrator connected to groups of subscriber sets via communication lines, and the second the I / O group is connected to the corresponding telephone exchanges of the PBX, the inputs / outputs of each hub are connected to the corresponding I / O of the local communication network, and the multipl group RRF, the inputs / outputs of each of which are connected to respective inputs / outputs of the local communication network, and the group input / output through the communication line connected to the central monitoring.

 A well-known equipment set of automatic telephone exchanges of a fire alarm system works as follows.

 In the initial state, after turning on the power of any of the central monitoring stations (CMS), the initial menu for operation is displayed on its display, and the CMS enters the cyclic poll mode of the multiplexers of the corresponding sets of ATS equipment via communication lines connecting the monitoring station with the multiplexers.

 After turning on the power on both multiplexers of the set of equipment of the automatic telephone exchange of the security and fire alarm system and successfully conducted internal diagnostics, they switch to a survey of the availability of information carrier in their input device. That multiplexer, which has detected a storage medium in its input device, considers itself a leader and reads information from the storage medium into its random access memory (RAM). If the reading was successful, then the multiplexer turns on its download confirmation indicator, which visually designates it as the leader.

 After that, the multiplexer begins to respond to requests from each monitoring station, receives from them unique network addresses of the hubs, the slave multiplexer and its network address, and through the local communication network transfers the full copy of its RAM to the second multiplexer, which defines itself as a slave and switches to listening mode on the local network . From this moment, all changes in the information data made by the leading multiplexer in its RAM are automatically made through the local network in the slave multiplexer, and the difference between them is that the leading multiplexer polls the concentrators in the network and receives information messages through the local network from them, and the slave multiplexer, listening to information on the local network, synchronizes with the leading multiplexer information from hubs.

 If the master multiplexer stops interrogating subscribers for a time controlled by the slave multiplexer, then the slave multiplexer switches to master mode with the corresponding functions of the master. Each monitoring station cyclically polls the status of the multiplexers connected to them, exchanges information with them and displays, if necessary, the corresponding information on the screens of its monitors. After turning on the hubs, they perform internal diagnostics and begin to respond to the requests of the leading multiplexer, as well as exchange information with it and execute the commands received from it.

 Moreover, each hub, in turn, through busy telephone lines connecting it to subscriber sets, includes a cyclical survey of the status of all subscriber sets that are registered with it in RAM. Interrogation of object blocks in subscriber sets is performed sequentially, according to the telephone line number and object block number (OB) on the telephone line. All information about the change in the OB parameters is transmitted by the concentrator through the local communication network to the leading multiplexer, which after preliminary processing duplicates it to the slave multiplexer and sends it to the corresponding monitoring station as intended for raising an alarm or making an appropriate decision. This set of PBX equipment for a fire alarm system uses busy telephone lines between a set of PBX equipment and a monitoring station and between a set of PBX equipment and subscriber sets.

 The disadvantage of this system is the limited area of protection of objects by a fire and security alarm system in areas where modern electronic automatic telephone exchanges are connected, interconnected by fiber-optic communication lines. Thus, in the cases described above, there are no copper communication lines between the set of equipment of the monitoring station and the sets of equipment of the automatic telephone exchange of the security and fire alarm system located on adjacent electronic digital automatic telephone exchanges and therefore it is impossible to organize the process of polling the status of subscriber sets due to the lack of operating protocols and electrical pairing ATS equipment kit for a fire alarm system with channel-forming electronic-digital ATS equipment operating on fiber-optic communication lines. A similar situation arises when using radio-relay and high-speed digital copper communication lines between exchanges operating in the CCITT G.703 standard.

 The aim of the invention is to increase the protection zone of objects with a set of automatic telephone exchanges of a fire alarm system.

 This goal is achieved by the fact that in the set of PBX equipment of a fire alarm system containing a local communication network, a group of concentrators, the first group of inputs / outputs of each concentrator is connected via communication lines to groups of subscriber sets, the second group of inputs / outputs is connected to corresponding telephone lines PBX communications, the inputs / outputs of each hub are connected to the corresponding inputs / outputs of the local communication network, and a group of multiplexers, the inputs / outputs of each of which are connected to the corresponding the corresponding inputs / outputs of the local communication network, and the input / output groups via the communication lines are connected to central monitoring consoles, an additional group of repeaters and a group of access devices are introduced, each of which consists of a local network controller, a microprocessor-based interface conversion unit, and a linear interface unit.

 Moreover, in each access device, the inputs / outputs of the LAN controller are connected to the corresponding inputs / outputs of the local communication network, and the group of inputs / outputs of the LAN controller is connected to the first group of inputs / outputs of the microprocessor-based interface conversion module, the second group of inputs / outputs of which are connected to the first a group of inputs / outputs of the linear interface unit, and the second group of inputs / outputs of which are connected to the corresponding inputs / outputs of the channel-forming equipment of the electronic telephone exchange, respectively the existing inputs / outputs of which, through communication channels, are connected to the inputs / outputs of the channel-forming equipment of other electronic exchanges, the inputs / outputs of the channel-forming equipment of each of which are connected to the inputs / outputs of the respective repeaters.

 Each repeater contains an access device, a local communication network and a group of concentrators, the first group of inputs / outputs of each concentrator is connected to subscriber sets through the corresponding communication lines, the second group of inputs / outputs of each concentrator is connected to the corresponding telephone exchanges of the PBX, and the inputs / outputs of each concentrator connected to the corresponding inputs / outputs of the local communication network, the inputs / outputs of which are connected to the inputs / outputs of the LAN controller of the access device an insulator, and the group of inputs / outputs of the controller of the local area network is connected to the first group of inputs / outputs of the microprocessor-based interface conversion module, the second group of inputs / outputs of which is connected to the first group of inputs / outputs of the linear interface unit, the second group of inputs / outputs of which is connected to the corresponding group of inputs / outputs of channel-forming equipment of electronic automatic telephone exchange.

 Figure 1 presents a block diagram of a set of PBX equipment for a fire alarm system, figure 2 is a block diagram of a repeater 5, and figure 3 is a block diagram of an access device 4 and 8.

 A set of PBX equipment for a fire alarm system contains a group of concentrators 1, a group of multiplexers 2, a local communication network 3, a group of access devices 4, a group of repeaters 5.

 The relay 5 contains a group of hubs 6, a local communication network 7 and an access device 8.

 Access devices 4 and 8 comprise a LAN controller 9, a microprocessor-based interface conversion unit 10, and a linear interface unit 11.

 The device operates as follows. In the initial state, after turning on the power of any monitoring station, the initial menu for the standby mode is displayed on its display, and the monitoring station, via the corresponding communication lines, goes into the cyclic mode of polling the current state of the multiplexers of the corresponding sets of equipment of the automatic telephone exchange of the fire alarm system.

 In the monitoring station, through the appropriate keyboard input device, all the information necessary for the functioning of the system and the duty personnel on the objects on which the object blocks from the group of subscriber sets are installed is entered. Information about protected objects consists of: address of the object; codes of keys-tokens of authorized access to the object; the necessary information about the persons responsible for installing and disarming the relevant facility; the location and plan of the facility with drawing on the plan of the installation sites of sensors for property protection and fire protection, which are assigned serial numbers not visible on the CRT screens on duty from the numbers of the group of lock loops for property protection and fire protection, which are part of the object unit (OB), and information on the types and characteristics of sensors installed on the corresponding lock loops; a plan of the area where the facility is located, indicating the optimal access paths to the facility; additional special information about the facility, location and type of OB installed on the facility and special equipment. The monitoring station writes all this information to the memory unit and prepares the necessary information messages for each set of PBX equipment of the fire alarm system.

 After turning on the power on multiplexers 2 sets of equipment of the automatic telephone exchange of the security and fire alarm system, they diagnose their internal nodes. Diagnostic results are highlighted by short blinks of the corresponding indicators located on the front panel of each multiplexer 2. If the diagnosis was successful, then each multiplexer 2 goes to the polling for the presence of a leading characteristic in its internal circuits. That multiplexer 2, which found this symptom in its circuits, considers itself a leader and turns on its indicator on the front panel for visual recognition as a leader. After that, he, through the appropriate communication lines, gets in touch with the monitoring stations interviewing him, receives from them unique addresses for all concentrators 1 and 6 (unique addresses of concentrates contained in the transponders) included in this set of PBX hardware of the fire alarm system.

 Simultaneously with the addresses, the master multiplexer 2 receives operational information from the monitoring station intended for loading into each hub 1, and the slave multiplexer 2 starts a cyclic polling through the local communication network 3 of the states of all multiplexers 2 and hubs 1 and 6 connected to it, receiving information messages from them and transferring back data and commands. The information received by the leading multiplexer 2 from hubs 1 and 6 is transmitted through the group of inputs / outputs and communication lines to the corresponding monitoring station as intended. Hubs 1 and 6 are polled at unique addresses on the local network that are received by slave multiplexer 2 from the monitoring station. The slave multiplexer 2 only listens for the master in the local communication network 3 and synchronously receives information. On the local communication network 3, the master multiplexer 2 transmits all changes in its data to the slave multiplexers 2 and controls the identity of them and their data. If the master multiplexer 2 stops polling in the local communication network 3 for a certain period of time, then the slave multiplexer 2 switches to the master mode with the performance of its functions.

 As the concentrators 1 power up, they diagnose their internal nodes and after that start responding to the polls of the leading multiplexer 2 through the local communication network 3, recognizing in the poll their unique address in the local communication network 3. Concentrators 1 through their input / output groups and corresponding communication lines with subscriber sets constantly poll their status and accumulate the received information in their memory. The hub 1, which recognizes its unique address in the local communication network 3, receives information intended for it from the local communication network 3 from the leading multiplexer 2 and transmits information to the local communication network 3 for the leading multiplexer 2 about itself and the status of subscriber sets controlled by it.

 Access devices 4 are designed to be combined into a single communication network with a common address space for all concentrators 1 and 6 of the local communication network 3, through channel-forming PBX equipment and communication channels between them and local communication networks 7. Thus, each access device 4 acts as a transparent gateway between the local communication network 3 sets of equipment of the automatic telephone exchange of the fire and security alarm system and the local communication network 7 of the corresponding relay.

 Access device 4 operates as follows. Survey frames and information with the addresses of the hubs 6 are sent by the leading multiplexer 2 in the IP, UDP, ARDP and RARDP formats (made according to the recommendations of the RFC 1700 documents) through their inputs / outputs to the local communication network 3 of the PBX equipment set of the security and fire alarm system. The information frames through the corresponding inputs / outputs of the local communication network 3 are fed to the inputs / outputs of the controller of the local network 9 and are written in groups to its buffer memory. The controller of the local area network 9 issues confirmation signals to receive frames to the local communication network 3 before filling its buffer and through the group of inputs / outputs transfers them from its buffer to the first group of inputs / outputs of the microprocessor-based interface conversion unit 10 at the request of the latter.

 The controller of the local area network 9 also couples the interface of the local area network 3, made in the recommendations of the standard MOC-ISO 8802.3 (IEEE 802.3), with the bus of the first group of inputs / outputs of the microprocessor-based interface conversion unit 10, which in turn packs the data frames of the local area network 3 received from the buffer of the LAN controller 9 into a stream consisting of a group of 64 kbps frames of a serial data structure and control signals that comply with the recommendations of the CCITT G.703 standard at a flow rate E1 and transmits the stream E1 synchronously through its second group of inputs / outputs to the first group of inputs / outputs of the linear interface unit 11, which electrically couples the second group of inputs / outputs of the unit 10 to the corresponding group of inputs / outputs of data signals and synchronization of the channel-forming equipment of the telephone exchange, made in the standard G.703. The synchronization of the reception and transmission of information in the E1 stream between the microprocessor-based interface conversion unit 10 and the linear interface unit 11 is carried out by the signals of the channel-forming equipment of the telephone exchange through the second group of inputs / outputs of the linear interface unit 11.

 The channel-forming equipment of the PBX, having received from the group of access devices 4 information flows and synchronization that it understands, converts them into a series of flows and higher-speed transmission rates, which it then transmits to the destination through the inputs / outputs of fiber-optic, radio-relay, or high-speed digital copper communication channels to the corresponding inputs / outputs of the channel-forming equipment of the required exchanges. Each channel-forming equipment of the automatic telephone exchange, having received information from the channel-forming equipment of the automatic telephone exchange, containing the set of equipment of the automatic telephone exchange of the fire alarm system, transmits information through the corresponding input / output group to the input / output group of the access device 8 of the corresponding repeater 5 in the G.703 standard.

 In turn, the access device 8 of each repeater 5 performs the inverse transformation of the information received from the channel-forming equipment of the PBX from the G. 703 standard into frames and formats IP, UDP, ARDP and RARDP (made according to the recommendations of RFC 1700) and through the inputs / outputs of its the controller of the local network 9 transmits it to the local communication network 7 of the relay 5 in the standard and IEEE 802.3. Hubs of 6 repeaters 5, according to their input / output groups and corresponding communication lines with subscriber sets, constantly poll the state of the latter and store the received information in their memory. The hub 6 of the relay 5 through its inputs / outputs receives information frames from the local communication network 7 and, recognizing them as its unique address in a single communication network, receives frames of information intended for it from the leading multiplexer 2, and transmits frames of information about itself and the state of the monitored them of subscriber sets for the leading multiplexer 2, made in the IP, UDP, ARDP and RARDP formats, back to the local communication network 7 in the IEEE 802.3 standard.

 This information is transmitted to the master multiplexer 2 from the local communication network 7 through the access device 8 of the relay 5, channel-forming equipment and communication channels of the corresponding automatic telephone exchanges in the opposite direction to the corresponding access device 4 sets of the automatic telephone system of the fire alarm system, through the local communication network 3 to leading multiplexer 2. Converting information transmitted by access devices 8 and 4 from hubs 6 in the opposite direction to the leading multiplexer 2, the anal tech transformation information transmitted from the host 2 through the access multiplexer devices 4 and 8 corresponding to the hub 6 in the forward direction and in the same standards.

 The proposed set of PBX equipment for a fire alarm system supports the MKKTT G.703 international communication protocol and can work with almost any modern electronic digital PBX connected by fiber-optic communication channels. The number of such telephone exchanges is growing rapidly every year, which will soon lead to a situation where the use of systems that work only on analog telephone communication lines for security will become difficult.

 The proposed set of automatic telephone exchange equipment for the security and fire alarm system allows you to expand the security zone of objects at each monitoring station and provide security for objects in the operating zone of automatic telephone exchanges that do not have direct copper telephone lines to the monitoring station. In addition, the kit allows you to organize any, focused on the real communication channels between the exchanges, the complex structure of the global communications network in the set of PBX equipment of the fire alarm system between the local communication networks 3 and 7 through the channel equipment of the PBX. In this case, the individual repeaters 5 can additionally also perform the functions of gateways in the global communication network.

Claims (1)

 A set of PBX equipment for a fire alarm system containing a local communication network, a group of concentrators, the first group of inputs / outputs of each concentrator is connected to groups of subscriber sets through communication lines, the second group of inputs / outputs is connected to the corresponding telephone lines of the PBX, inputs / outputs of each the hub is connected to the corresponding inputs / outputs of the local communication network, and a group of multiplexers, the inputs / outputs of each of which are connected to the corresponding inputs / outputs of the local communication network, and the input / output groups via communication lines are connected to central monitoring consoles, characterized in that an additional group of repeaters and a group of access devices are introduced, each of which consists of a LAN controller, a microprocessor-based interface conversion unit and a linear interface unit, in each access device, the inputs / outputs of the LAN controller are connected to the corresponding inputs / outputs of the local communication network, and the group of inputs / outputs of the LAN controller with connected to the first group of inputs / outputs of the microprocessor-based interface conversion module, the second group of inputs / outputs of which are connected to the first group of inputs / outputs of the linear interface unit, and the second group of inputs / outputs of which is connected to the corresponding inputs / outputs of the channel-forming equipment of the electronic telephone exchange, corresponding outputs / the outputs of which through communication channels are connected to the inputs / outputs of the channel-forming equipment of other electronic exchanges, the inputs / outputs of the channel-forming equipment of which are connected to the passages / outputs of the respective repeaters, and each relay contains an access device, a local communication network and a group of hubs, the first group of inputs / outputs of each hub is connected to subscriber sets through the corresponding communication lines, the second group of inputs / outputs of each hub is connected to the corresponding telephone exchanges of the PBX and the inputs / outputs of each hub are connected to the corresponding inputs / outputs of the local communication network, the inputs / outputs of which are connected to the inputs / outputs the LAN controller of the repeater access device, and the I / O group of the LAN controller is connected to the first I / O group of the microprocessor-based interface conversion unit, the second I / O group of which is connected to the first I / O group of the linear interface unit, the second I / O group of which connected to the corresponding group of inputs / outputs of the channel-forming equipment of the electronic telephone exchange.

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