CN2436986Y - Fire automatic alarm network communication controller - Google Patents

Abstract

The utility model relates to an access device, which can be connected between an automatic alarm control host machine and an ordinary telephone line in a fire protection unit. A fire automatic alarm network communication controller is composed of a central processor 6, a serial interface level converting circuit 3, a programmable parallel I/O expanding interface circuit 4, a programmable serial communication interface circuit 9, a modulation-demodulation circuit 12, A watchdog circuit 10, an incoming call display circuit 11, etc. When the controller works and after the controller obtains fire alarm information from the alarm control host machine, a communication protocol stored in the watchdog circuit can make the central processor correctly communicate with the alarm control host machine and obtain fire alarm information; the central processor snatches lines and sends AT commands through the modulation-demodulation circuit, and dials to a 119 center and transmits digitized fire alarm information.

Description

The automatic fire alarm network communication controller

The utility model belongs to telecommunications and controls technical field of electricity automatically, relates to a kind of electronic monitoring alarm controller, particularly a kind of network communication controller that can be used for realizing the concentrated fire fighting monitoring management in emphasis fire strick precaution place, city.

The high speed development of urban economy, make the kind and the character of City Building (group) increasingly sophisticated, in building, road, uncertainty in the key elements such as water source also increases greatly, thereby the municipal public safety affairs (are comprised fire prevention, anti-bandit, medical care first aid etc.) strick precaution just more and more causes people's attention with the processing of reporting to the police, particularly need fire is carried out unit and the department such as the market of guard key at some, the restaurant, the hotel, the station, the warehouse, machine room, office, public place of entertainment etc., in case breaking out of fire and delay are reported to the police or the indefinite words of alarm condition, loss that disaster caused and baneful influence will be immeasurable.

At present, most key units in domestic big or middle city and department all are equipped with automatic alarm and monitoring system at its emphasis fire prevention position, are used for the fire alarm monitoring of our unit and department.This type systematic mainly is made up of detection sensor and controlling alarm main frame, and acquisition sensor comprises detecting devicess such as cigarette sense, temperature sense and coal gas probe, and they are distributed in each condition of a fire control point.When detecting the condition of a fire, probe sends warning message to main control system, and the main control system loudspeaker sends audible alarm, is judged according to the condition of a fire and is handled (dialing 119 center phones) by the operator on duty.This type systematic generally all is confined in the our unit, and the personnel of need are on duty, and to the dialing of 119 FCCs, alarm delay time is longer by manually.

According to the utility model applicant consulting and retrieving to relevant technologies data and patent documentation, have some technology contents of declaring patent so far above-mentioned supervisory system has been made improvement, enabling to be implemented in to detect and dial the function of being 119 phones after the fire alarm automatically, is that 96120930 " automatic fire warning and communication system " and number of patent application are " fire alarm networking autoalarm " two technology contents of 95240285 as number of patent application.But they still exist following some shortcomings and defective: 1., can not accurately put in place to point of origin, and the probe positions that promptly can not accurately put in place and report to the police, thereby also just can't determine buildings on fire, floor and concrete room number; 2., existing dialing controller can not be well compatible at aspects such as communication protocol, communication interfaces with various controlling alarm main frames; 3., can not make FCC determine the title of warning unit, place, the intensity of a fire and condition of a fire periphery situation fast; 4., do not have auto answer center inspection function, make FCC can't determine the work at present state of alarm controller and controlling alarm main frame; 5., the software of receiving a crime report automatically that does not match with consummating functions such as warning reception, data storage, data query and maintenance, data statistic analysis with dialing controller.

The purpose of this utility model is at existing deficiency of present known technology and defective, and a kind of automatic fire alarm network communication controller of directly connecting Fire telephone automatically by city telephone network in the existing automatic alarm and monitoring system and transmitting correlated digital information that is installed on is provided.

The technical solution that is used to realize the foregoing invention purpose and adopts is such: the automatic fire alarm network communication controller that is provided is a kind of access device that is connected between existing controlling alarm main frame and the ordinary telephone line, it contains central processing unit (CPU), the serial line interface level shifting circuit, programmable parallel I/O expansion interface circuit, serial communication interface circuit able to programme, modulation-demodulation circuit, watchdog circuit and the caller identification circuit of band E2PROM, wherein two of the serial line interface level shifting circuit I/O ends link to each other with the serial i/O end of controlling alarm main frame and the serial i/O end of central processing unit respectively, the printer interface input end of programmable parallel I/O expansion interface circuit and output terminal are connected with the output terminal of controlling alarm main frame and the printer interface input end of central processing unit respectively, the output terminal of watchdog circuit is connected to an input end of central processing unit, the serial ports of central processing unit is exported the I/O end and is connected by the second serial output I/O end of serial communication interface circuit expansion able to programme and the input I/O end of modulation-demodulation circuit, the output I/O termination of modulation-demodulation circuit go into the to dial machine of the carrying dialing input control end of phone, the input end of caller identification circuit and output terminal connect the output terminal of modulation-demodulation circuit and the caller identification input end of central processing unit respectively.

Network communication controller described in the utility model has the dual serial interface, can work simultaneously, its use is such: after automatic alarm and monitoring system starts, central processing unit is read string, parallel port selection marker from the watchdog circuit of band E2PROM, decision present networks communication controler is to be connected with serial ports or to be connected with printer interface with the controlling alarm main frame; The communication protocol of storing in the watchdog circuit makes central processing unit correctly obtain fire alarm or failure message with the controlling alarm main-machine communication; After controlling alarm main frame acquisition fire alarm information (mainly being probe fire alarm information), the central processing unit ruthless pre-emption, second serial and modulation-demodulation circuit by serial communication interface circuit expansion able to programme are set up contact, send the AT order, dial in to 119 FCCs and the transmission digitizing fire alarm information specific to probe, the acquisition center is hung up after confirming; Center-side is resolved the data of receiving, related data in the Query Database in view of the above, show on screen with forms such as electronic chart, fabric structure figure and detailed Word messages, and indicate the exact position that fires a little, the decision-making foundation of science is provided for the disaster relief, responding and the fire prevention of fire department.FCC also can be patrolled and examined to the communication controler of each emphasis fire prevention unit of city in the automatic or manual mode at preset time, controller is received phone after the caller identification circuit is differentiated, if FCC is patrolled and examined phone and is then carried machine automatically, wait the querying command at the center that obtains after send state information to the center.

Below with reference to accompanying drawing the utility model content is described further.

Fig. 1 is the design concept figure of automatic fire alarm network communication controller described in the utility model.

Fig. 2～Fig. 4 is the circuit on line figure of a kind of specific embodiment structure of the utility model, and wherein Fig. 2 is serial line interface level shifting circuit, programmable parallel I/O expansion interface circuit, serial communication interface circuit able to programme, E ²The on line figure of the example structure of PROM watchdog circuit and central processing unit, Fig. 3 are the on line figure of modulation-demodulation circuit, and Fig. 4 is the on line figure of caller identification circuit.

Referring to Fig. 1, network communication controller described in the utility model is actually the door of fire prevention unit and FCC networking, and it is by central processing unit 6, serial line interface level shifting circuit 3, programmable parallel I/O expansion interface circuit 4, serial communication interface circuit able to programme 9, modulation-demodulation circuit 12, band E ²The watchdog circuit 10 of PROM and caller identification circuit 11 etc. are partly formed.Central processing unit 6 adopts the MCS-51 series monolithics, and it is the core of present networks signal controller, is responsible for handling fire alarm that controlling alarm main frame 1 sends and failure message and reports to the police to the center.Serial line interface level shifting circuit 3 and programmable parallel I/O expansion interface circuit 4 constitute the importation of central processing unit 6, and they obtain fire alarm and failure message by linking to each other with printer port with the serial ports of controlling alarm main frame 1 respectively.Serial communication interface circuit 9 able to programme and modulation-demodulation circuit 12 can be by the fire alarm and the failure messages of dial telephone set 13 and fire-fighting center cluster and transmission probe as the output of controller.Band E ²The effect of the watchdog circuit 10 of PROM is that control central processing unit 6 resets and stores running parameter, central processing unit 6 is used for the data communication protocol of controlling alarm main frame 1 is write in it, so that can correctly be communicated by letter with controlling alarm main frame 1 and be obtained fire alarm and failure message.Caller identification circuit 11 can be discerned the phone of patrolling and examining at fire-fighting center, to realize the function of auto answer and report main control system 1 status information.For improving the stability of system works, in the present networks communication controler, also be provided with monitoring temperature circuit 8, voltage monitoring circuit 2, power module circuitry 5 and condition indication circuit 7.

In the embodiment shown in Fig. 2～4, central processing unit 6 adopts the AT89C51 single-chip microcomputer; Serial line interface level shifting circuit 3 adopts MAX232 level transferring chip integrated circuit, also can be replaced by RS232 or 1488, similar chips such as 1489; Programmable parallel I/O expansion interface circuit 4 adopts 8255 chip integrated circuit, and serial communication interface circuit 9 able to programme adopts 8251 chip integrated circuit, and modulation-demodulation circuit 12 adopts MODEM chip integrated circuit Z02201 and Z02205, band E ²It is the chip integrated circuit of X25045 that the watchdog circuit 10 of PROM adopts model, and caller identification circuit 11 adopts MT8870 chip integrated circuit, and in addition, temperature-control circuit can adopt AD7416 chip integrated circuit.In the diagram circuit, the 12nd and 11 pins of MAX232 circuit are connected to the 10th and 11 pin of AT89C51 single-chip microcomputer respectively; The 1st, 5,6 pin of X25045 chip are connected with the 1st, 3,2 pin of AT89C51 single-chip microcomputer respectively; All link to each other with the Data Control line between 8255 chips and 8251 chips and the AT89C51 single-chip microcomputer by address wire; The 1st～4 pin of 8255 chips (INPUT line) is from the printer control bus, and the 18th～25 pin (INPUT line) is from the printer data bus; The effect of MODEM chip is outside dialing, transmission data and answerphone ring, it comprises Z02201 and two chips of Z02205, the 319th pin of 8251 chips (OUTPUT end) is connected to the 18th pin of Z02201 chip and the 38th pin of Z02205 chip simultaneously, the 24th pin of 8251 chips is connected to the 13rd pin of Z02201 chip, the connecting line of Z02201 chip and Z02205 chip chamber has: eight of data lines, be respectively D0～D7,5 of control lines are respectively IRQ, RESET, WR, RD, CS; Four data/address line AD0～AD3 of MT8870 chip respectively with the line of the same name UNICOM of AT89C51 single-chip microcomputer, the 15th pin of MT8870 (IDINTQ line) is connected with the 13rd pin of AT89C51 single-chip microcomputer by SN74LS08, work makes, MT8870 by and the telephone number information sent by switch when meeting two telephone wire TI1 and PI1 and obtaining incoming call, interrupt by the IDINTQ application, in the CPU response, have no progeny telephone number is put into data, take away by CPU on the address multiplex assembly, CPU judge if FCC patrol and examine phone then off-hook realize auto answer, to the center reporting state information.Label 13 is a telephone set among Fig. 3; 14 is telephone line socket.

In actual application scheme of the present utility model, 89C51 can be replaced by other 51 series monolithic, at this moment only needs to increase Add-In storeies such as 2764,6264 or data-carrier store and get final product, and 89C51 also can be replaced by two serial ports CPU, at this moment 8251 shouldn't.In addition, the second serial of the serial ports of 89C51 and 8251 expansions is interchangeable, the serial ports of 8251 direct main control systems taking alarm, and the serial ports of 89C51 connects the MODEM chip.The MODEM chip also can be substituted by other like product.

Compared with prior art, the beneficial effect and the advantage that have of the utility model is as described below.

One, network communication controller described in the utility model can make automatic fire alarm be accurate to concrete each spy Position: general automatic alarm system be with the section as the monitoring unit, each section comprises several even several Ten inductive probes, when receiving fire alarm information, monitoring system can only determine that there is alert in a certain zone, but can not Accurately navigate to some rooms or position, and communication controler described in the utility model is in fire-fighting command Include unit identification number and sensor 's number in the warning message that heart warning sends, utilize simultaneously computer network to reach Database can accurately be located the building of alert and to the room and in the mode of figure and literal in detail, in real time The fire field condition is described out.

Two, this network communication controller can be complementary with the automatic fire alarm main control system of various models: existing The general fire alarm control that only is used for our unit and department of automatic fire alarm control system, they are not and public affairs The networking of peace FCC, and the brand of various automatic fire alarm main control systems is numerous and diverse, data communication format Also do not have unified standard, communication controler described in the utility model can be installed on to have now in the monitoring system and also hold concurrently Hold various data communication format, the user's that adequately protected existing investment.

Three, software and hardware combining makes monitoring system have more advance and operability: fire alarm monitoring system passes through Communication controler described in the utility model sends digital alarming information to FCC, and the fire-fighting center is automatic The response remote controller was correct with the send and receive of guaranteeing data after the computer of receiving a crime report received correct data, and By computer network, database and application software etc. data are gathered, receive, analyze, processed and deposit Storage, simultaneously by after historical alert is carried out Classified statistics, for the taking precautions against natural calamities of fire department, mitigation, the calamity of going out and The condition of a disaster analysis and the condition of a disaster are processed the decision-making foundation that science is provided.

Four, private communication protocol has guaranteed the correctness of data transmission: formula communication protocol and data redundancy calibration technology are replied in the employing of communicating by letter of communication controler described in the utility model and FCC spare, guaranteed to connect, the correctness of alert data transmission and property rapidly, prevented the wrong report of fire alarm effectively and failed to report.

Five, automatic ruthless pre-emption, caller identification and the automatic answer function that the utility model had can make the fire-fighting center monitor interior each emphasis fire prevention unit fire alarm of entire city at any time and fire fighting equipment ruuning situation is monitored in real time, thereby improve the reliability of fire protection warning facility, strengthen fire brigade quick-reaction capability (QRC) and command ability.

Except that the warning that is applicable to fire alarm and handling, technical scheme described in the utility model and products thereof also is applicable to applications such as theft alarm, robber and police and medical matters first aid.

Claims (1)

1. A kind of automatic fire alarm network communication controller that inserts between the fire prevention automatic controlling alarm main frame of unit (1) and ordinary telephone line is characterized in that it contains central processing unit (6), serial line interface level shifting circuit (3), programmable parallel I/O expansion interface circuit (4), serial communication interface circuit able to programme (9), modulation-demodulation circuit (12), band E ²The watchdog circuit of PROM (10) and caller identification circuit (11), wherein two I/O ends of serial line interface level shifting circuit (3) link to each other with the serial i/O end of controlling alarm main frame (1) and the serial i/O end of central processing unit (6) respectively, the printer interface input end of programmable parallel I/O expansion interface circuit (4) and output terminal are connected with the output terminal of controlling alarm main frame (1) and the printer interface input end of central processing unit (6) respectively, the output terminal of watchdog circuit (10) is connected to an input end of central processing unit (6), the serial ports of central processing unit (6) is exported the I/O end and is connected by the second serial output I/O end of serial communication interface circuit able to programme (9) expansion and the input I/O end of modulation-demodulation circuit (12), the output terminal of modulation-demodulation circuit (12) inserts the machine of the carrying dialing input control end of telephone set, and the input end of caller identification circuit (11) and output terminal connect the output terminal of modulation-demodulation circuit (12) and the caller identification input end of central processing unit (6) respectively.

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