CN1103729A - Fll-duplex micro-computerized automatic monitoring FM system - Google Patents

Abstract

The automatic monitoring system for preventing theft and fire consists of host computer comprising control microcomputer system, host receiver and host transmitter and extension machine comprising sensor input terminals, theft- and fire-preventing probe input and synchronizing circuit, level converter, data latch, logical switch, transmitter, receiver, processing unit, presetting unit, linking signal output circuit, power amplifier and output terminals connected to executor. It has the functions of alarming, display, printing and executor control.

Description

Fll-duplex micro-computerized automatic monitoring FM system

The invention belongs to a kind of warning device, the automatic monitoring anti-theft of particularly a kind of full duplex coding type frequency modulation power carrier microcomputer, fire prevention system.

Wire communication is as the term suggests be to be that media transmits information with the lead.Traditional wire communication is to transmit information with special line, special cable, owing to make and lay and brought inconvenience to people; In contrast, electric line carrier communication is to utilize the existing normal power cord of original building facility to transmit information, along with the development of modern communication technology and the application of computer technology, this technology progressively moves to maturity, thereby has thoroughly solved special line in the last hundred years, specially many puzzlements of bringing to people of cableless communication.

Currently used warning device all need be provided with special line, special cable, and the signal of monitoring point is delivered in the main frame, carries signal by main frame to extension set again, thus the fire prevention of control terminal, device action such as antitheft.The shortcoming of this warning device is: special line, special cable need be set, thereby increase cost and inconvenience is installed, in addition, its reliability is low, anti-interference difference and easy-maintaining not.

The present invention combines electric line carrier communication technology and computer technology exactly, provide a kind of and do not have special line, do not have construction and move flexibly, reliability is high, strong interference immunity and the automatic monitoring anti-theft of full duplex coding type frequency modulation power carrier microcomputer, the fire prevention system of multiple functions such as warning, demonstration, printing, control execution are arranged.

The present invention is achieved in that it has one by Control System of Microcomputer, join display screen outward, host power supply, the main frame that main frame receiver that links to each other with Control System of Microcomputer by interface board and main frame sender constitute with several by the input wires terminal that links to each other with sensor, two anti-probe inputs circuit of adjusting, level shifting circuit, data latches and Digital Logic switch, extension set sender and extension set receiver, Logical processing unit, artificial setup unit and interlock signal level output circuit, the extension set of power amplifier and output wiring terminal that links to each other with actuator and Exgt Bat extension battery formation, said main frame sender and extension set sender are by photoelectric isolating circuit, level shifting circuit, the downlink coding modulator, the primary modulation device, digital frequency synthesizer, the regulation and control of AFC(automatic frequency) adjuster, frequency multiplier, the secondary power modulator, power amplifier and being used for radio frequency frequency modulation power signal through too high, the device of reaching the standard grade of serving electrical network after low pressure is isolated constitutes, said main frame receiver and extension set receiver are by the device that rolls off the production line that is used for fm carrier signal is taken out from electrical network after isolating, wave filter, compandor, the lower limit frequency mixer, frequency divider, phase locking unit, detuner, demoder, level shifting circuit and photoelectric isolating circuit constitute, wherein, the radio frequency FM signal that the main frame receiver is sent out the extension set transmitter is converted to 12 bit parallel data and address signals, the extension set sender is converted to radio frequency frequency modulation high-power signal with 12 bit parallel data and address signal, the main frame sender becomes 12 bit parallel addresses and data-signal into the radio frequency FM signal, the extension set receiver is launched main frame frequently, and FM signal is converted to parallel 12 bit data and address signal, said extension set sender, 220V electrical network and main frame receiver constitute up feedback channel, the main frame sender, 220V electrical network and extension set receiver constitute descending forward path, the working method of main frame and all extension set adopts by platform full duplex paging mode, the state encoding of at first certain extension address being encoded and desiring to search send interface board by the interface circuit in the microsystem, enter descending forward path again, and after sensor is triggered in the extension set, the current and voltage signals that is produced is through input wires terminal input extension set, adjust and be the CMOS level through two anti-probe inputs circuit of adjusting, be converted to Transistor-Transistor Logic level through level shifting circuit again, and by latch lockout, after in a single day corresponding extension set receives that state that main frame is sent out searches signal, send signal instruction with the Digital Logic switch opens through Logical processing unit, make latch 8 bit data transfer to Control System of Microcomputer in the main frame through up feedback channel, if alerting signal is arranged, promptly carry out demonstration respectively by man-machine passage in the Control System of Microcomputer and outer configuration display screen, print and sound and light alarm, concurrent command signal is through descending forward path, send Logical processing unit in the extension set, this unit sends the execution signal, through interlock signal level output circuit, after power amplifier is handled, export to actuator through output wiring terminal again, thereby realize closed-loop control.

According to the above-mentioned automatic monitoring anti-theft of full duplex coding type frequency modulation power carrier microcomputer, fire prevention system, the said device of reaching the standard grade is made of two secondary coils and the electric capacity of primary winding, the variable capacitance that is connected in parallel on its two ends and series connection, and the structure of the said device that rolls off the production line is similar with the device of reaching the standard grade but its input and output terminal is opposite with the device of reaching the standard grade.

Advantage of the present invention is:

1, native system does not draw special line, need not construct, and has removed the workload of cable laying from, has shortened the duration, has reduced investment, has reduced engineering cost;

2, because without special line, it is minimum that the year failure rate of native system is reduced to, thereby realized that circuit is non-maintaining for a long time, for the user has reduced maintenance cost all the year round;

3, Extension Mobility is strong, and the guard can arbitrarily move according to concrete condition and arrange extension set and probe;

4, any selectivity to probe is strong, promptly can be used for the antitheft fire prevention that can be used for again, also can increase and decrease the probe number simultaneously;

5, native system adopts modern communication technology at all costs, key is the anti-interference and the reliability of enhanced system, make it can suppress the interference that the electronic devices and components job insecurity of system own is produced, can overcome the various interference that extraneous bad working environment is introduced again, so its anti-interference is extremely strong;

6, native system is a closed-loop system, has back control interlock output function;

7, native system has intelligent trouble self check and Presentation Function;

8, native system can be joined the UPS uninterrupted power source outward, makes it not influence operate as normal under power-off condition;

9, native system adopts full phase soverlay technique, makes it not be subjected to the alternate restriction of electrical network, and the scope of application is more extensive;

10, this system has multiple functions such as warning, demonstration, printing, control are antitheft, the action of fire prevention actuating unit.

Below in conjunction with drawings and Examples the present invention is elaborated:

Fig. 1 is this overall system distribution plan;

Fig. 2 is this system's control principle block diagram;

Fig. 3 is the main frame theory diagram;

Fig. 4 is the extension set theory diagram;

Fig. 5 is the device circuit theory diagrams of reaching the standard grade;

Fig. 6 is this system works main program block diagram.

As shown in drawings; this is antitheft; fire prevention system is by main frame P; extension set Q and 220V electrical network constitute; there is one among the main frame P by CPU(8031); random memory (6264); read-only memory (2764) and interface circuit (8155); Control System of Microcomputer 12 and system power supply and communication power supply 13 that man-machine passage is formed; join UPS uninterrupted power source 14 outward and join display screen 15 outward; wherein adopt the calendar of band automatic power cutoff protector; clock stamen sheet (6242) is done regularly outer; timing is 2ms; and the while is to the PB of interface circuit (8155); PC mouth load address; from PA mouth sense data; system works adopts hunt mode; this Control System of Microcomputer 12 also adopts software and hardware combining " dog opens the door " technology; channel data is subjected to automatic wait and recovery technology (the stand-by period 2s after extraneous the destruction; transfer behind the 2s from recovering to declare wrong subroutine); the comprehensive employing of above-mentioned technology makes this microsystem 12 have very strong antijamming capability aspect power interface and the channel; be connected on input of 220V electrical network and microcomputer and output interface plate 11 in the main frame in addition respectively; 11 ' between main frame receiver P1 and main frame sender P2, said main frame sender P2 by photoelectric isolating circuit 10 '; level shifting circuit 9 '; downlink coding modulator 8 '; primary modulation device 7 '; digital frequency synthesizer 6 '; AFC adjuster 5 '; frequency multiplier 4 '; secondary power modulator 3 '; power amplifier 2 '; device 1 ' the formation of reaching the standard grade.The working method of said main frame P and all extension set Q adopts by platform full duplex paging mode, at first with certain extension address coding and the state encoding desiring to search by the PB mouth of the interface circuit in the microsystem 12 (8155) and PC mouth low 4 send interface board 11 ', through photoelectric isolating circuit 10 ', level shifting circuit 9 ', make Transistor-Transistor Logic level become the CMOS level, again through downlink coding modulator 8 ' carry out downlink coding, and export with serial mode, again through primary modulation device 7 ' serial code is carried out FSK(frequency shift keying) primary modulation, change into the ECL level, it is synthetic to carry out numerical frequency with digital frequency synthesizer 6 ' (ECL multiplier chip), through AFC adjuster 5 ' (automatic frequency control) adjustment after frequency multiplier 4 ' carry out 2 ⁸=256 times of frequencys multiplication, enter secondary power modulator 3 ', power amplifier 2 ', original parallel 12 bit data have become the high-frequency high-power FM signal to this, promptly become the modulated signal of serial, again through the device 1 of reaching the standard grade ' send into electrical network, thereby the full phase signals that has realized three-phase (A, B, C phase) covers, the said device 1 of reaching the standard grade ' structure as shown in Figure 5, it is by primary winding L ₁, be connected in parallel on the variable capacitance C at its two ends ₁, and the series connection secondary coil L ₂, L ₃And capacitor C ₂Constitute, wherein the turn ratio of coil is L ₁: L ₂: L ₃=2: 1: 1, L ₁The number of turn is chosen as 50～200T(circle according to actual conditions), the receiver P1 of main frame P is by the device 1 that rolls off the production line, wave filter 2, compandor 3, lower limit frequency mixer 4, frequency divider 5, phase locking unit 6, detuner 7, demoder 8, level shifting circuit 9, photoelectric isolating circuit 10 constitutes, be up forward path, wherein roll off the production line device 1 structure with reach the standard grade device 1 ' structural similarity, just input and output terminal is 1: 1: 10 with the device 1 of reaching the standard grade ' opposite and turn ratio its primary winding and secondary coil, when extension set Q receives the paging signal that main frame P sent out from electrical network after, the signal that will have own state is at once issued main frame P through electrical network, the preposition device 1 that rolls off the production line in the up forward path of main frame takes out this signal from electrical network, carry out filtering through wave filter 2 then, again after 3 pairs of amplitudes of compandor are handled, becoming the ECL level sends into lower limit frequency mixer 4(and is formed by the ECL chip portfolio) after, through frequency divider 5 its output is carried out 2 ⁸Times frequency division, to signal demodulation behind the frequency division, demodulated output signal is decoded, and make the four figures of serial parallel according to becoming, incoming interface plate 11 after level conversion, photoelectricity are isolated, at this moment CPU element (8031) can be read 8 bit data from interface circuit (8155) chip PA mouth:

Wherein can set: the 8th for " 1 " time table fault or be subjected to external interference, can provide anti-interference function to open the beginning signal; Represent to hang down 4 during for " 0 " fully normally.Low 4 then is the required status data of main frame P, and main frame P even reads twice with each low 4 bit patterns of reading together, can get 8 complete status numbers, reads then to know for four times whole states of extension set Q:

So, to down and on the alarm set point state that can form be

1

1 n number alert point " fire " feelings

n

0

1 n number alert point " gangster " feelings

n

1

0 n number alert some alarm free

n

As long as promptly there is warning arbitrary position for " 1 " in the 2nd byte, CPU just transfers the warning subroutine at once, carries out demonstration respectively by man-machine interface passage and display screen 15, prints and sound and light alarm, promptly finishes the entire work process of main frame.

Said extension set receiver Q1(down channel receiver system using), extension set sender Q2(up channel transmission system), Logical processing unit 16, artificial setup unit 17, interlock signal level output circuit 18, power amplifier 19, the output wiring terminal 20 that links to each other with actuator and with antitheft, the continuous input wires terminal 21 of fire prevention sensor (two anti-probe), two anti-probe inputs circuit 22 of adjusting, level shifting circuit 23, latch 24 with Logical processing unit 16 and up channel transmission system Q2(extension set sender) the Digital Logic switch 25 and the system power supply that link to each other, communication power supply 26, join UPS uninterrupted power source 27 outward and constitute extension set, said down channel receiver system using Q1(extension set receiver) with the up forward path P1(of main frame main frame receiver) structure identical, said up channel transmission system (extension set sender) Q2 and the descending backward channel P2(of main frame main frame sender) structure identical, each extension set Q can join 6～8 antitheft, the fire prevention sensor, its classification and duty are set by artificial setup unit, after sensor is triggered, the current and voltage signals that is produced is through input wires terminal 21 input extension sets, adjust and be the CMOS level through two anti-probe inputs circuit 22 of adjusting, be converted into Transistor-Transistor Logic level through level shifting circuit 23 again, and by latch 24 with data interlock, after in case extension set Q receives that state that main frame P is sent out searches signal, sending signal instruction through Logical processing unit 16 opens Digital Logic switch 25, make that 8 bit data enter up channel transmission system Q2(extension set sender in the latch 24) in, serve the 220V electrical network again, and then be sent to main frame P; After main frame P collects mail, the signal that sends instructions is again gone into extension set Q through down channel, send Logical processing unit 16, this unit sends the execution signal, after interlock signal level output circuit 18, power amplifier 19 are handled, export to actuator through output wiring terminal 20 again, open the actuator switch, make fire prevention, antitheft actuating unit work, thereby realized closed-loop control.

Be full duplex communication between the master of this system, extension set, occupy two different channels (being the uplink and downlink channels) respectively, be spaced apart 100～500KHZ, so, there is not the frequency alias problem.

The main program block diagram of this system works as shown in Figure 5, H-storage unit, i.e. extension address among the figure:

At first, through program initialization, send extension address and the data that to look into to interface circuit (8155) B mouth, C mouth again, after the delay adjustments time (10ms), so that data stabilization that channel transmits is read interface circuit (8155) A mouth, read stable data, data are handled,, promptly transferred the warning subroutine if warning is arranged, report to the police, show, print, reset time-delay again, search next extension address, repeat said process.

Every main frame P can be with tens of extremely hundreds of small-sized extension set Q, and concrete number can be set by digital dial in the main frame; Main frame has the classifications such as fire, robber and police, system cut-off and fault of each alarm set point, alert period and the numeral of time and shows; Can join large-scale police region, alert point, the fixed numeral of classification three looks (red, yellow, green), the overall display screen of cursor outward; Multiple spot, multi-class when reporting to the police simultaneously, the evolution of can come into plain view its position and the state of affairs; Has three the siren three coloured light corresponding system of glittering with warning classification (fire, gangster, fault); Main frame has printer, can print time of fire alarming and alert all information of point automatically; Main frame digital display window is that Automatic calendar and fixed point music are given the correct time at ordinary times; Main frame has the reset key of ventil and linkage; Main frame is joined UPS uninterrupted power source 14, in case when having a power failure, back-up source is worked automatically, makes the system still can continual operate as normal, automatically switches to again on the common AC power during incoming call.Extension set has emission two probe outputs and reception host command, sends the function of interlock signal, extension set portability 6-8 two anti-probe, probe classification and duty are set by dial switch (being artificial setup unit) in the machine, set duty for one group, another group is set the probe classification, the cancellation of no idle probe available work switch; Extension set can be joined 50WUPS uninterrupted power source 27 outward, can automatically switch when having a power failure, and still keeps the extension set operate as normal.

Claims (5)

1, the automatic monitoring anti-theft of a kind of full duplex coding type frequency modulation power carrier microcomputer, fire prevention system, it is characterized in that, it has one by Control System of Microcomputer (12), join display screen (15) outward, host power supply (13,14), by interface board (11,11 ') main frame that constitutes of the main frame receiver (P1) that links to each other with Control System of Microcomputer (12) and main frame sender (P2) with several by the input wires terminal (21) that links to each other with sensor, two anti-probe inputs circuit (22) of adjusting, level shifting circuit (23), data latches (24) and Digital Logic switch (25), extension set sender (Q2) and extension set receiver (Q1), Logical processing unit (16), artificial setup unit (17) and interlock signal level output circuit (18), power amplifier (19) and output wiring terminal that links to each other with actuator (20) and Exgt Bat extension battery (26,27) extension set of Gou Chenging, said main frame sender (P2) and extension set sender (Q2) are by photoelectric isolating circuit (10 '), level shifting circuit (9 '), downlink coding modulator (8 '), primary modulation device (7 '), digital frequency synthesizer (6 '), AFC (automatic frequency regulation and control) adjuster (5 '), frequency multiplier (4 '), secondary power modulator (3 '), power amplifier (2 ') and being used for radio frequency frequency modulation power signal through too high, the device of reaching the standard grade (1 ') of serving electrical network after low pressure is isolated constitutes, said main frame receiver (P1) and extension set receiver (Q1) are by the device that rolls off the production line (1) that is used for fm carrier signal is taken out from electrical network after isolating, wave filter (2), compandor (3), lower limit frequency mixer (4), frequency divider (5), phase locking unit (6), detuner (7), demoder (8), level shifting circuit (9) and photoelectric isolating circuit (10) constitute, wherein, the radio frequency FM signal that main frame receiver (P1) is sent out extension set sender (Q2) is converted to (12) bit parallel data and address signal, extension set sender (Q2) is converted to radio frequency frequency modulation high-power signal with (12) bit parallel data and address signal, main frame sender (P2) becomes (12) bit parallel address and data-signal into the radio frequency FM signal, extension set receiver (Q1) is launched main frame frequently, and FM signal is converted to parallel (12) bit data and address signal, said extension set sender (Q2), 220V electrical network and main frame receiver (P1) constitute up feedback channel, main frame sender (P2), 220V electrical network and extension set receiver (Q1) constitute descending forward path, the working method of main frame and all extension set adopts by platform full duplex paging mode, the state encoding of at first certain extension address being encoded and desiring to search send interface board (11 ') by the interface circuit in the microsystem (12), enter descending forward path again, and after sensor is triggered in the extension set, the current and voltage signals that is produced is through input wires terminal (21) input extension set, adjust and be the CMOS level through two anti-probe inputs circuit (22) of adjusting, be converted to Transistor-Transistor Logic level through level shifting circuit (23) again, and lock by latch (24), after in a single day corresponding extension set receives that state that main frame is sent out searches signal, sending signal instruction through Logical processing unit (16) opens Digital Logic switch (25), make that 8 bit data transfer to Control System of Microcomputer in the main frame (12) through up feedback channel in the latch (24), if alerting signal is arranged, promptly carry out demonstration respectively by man-machine passage in the Control System of Microcomputer (12) and outer configuration display screen (15), print and sound and light alarm, concurrent command signal is through descending forward path, send Logical processing unit in the extension set (16), this unit sends the execution signal, through interlock signal level output circuit (18), after power amplifier (19) is handled, export to actuator through output wiring terminal (20) again, thereby realize closed-loop control.

2, according to the automatic monitoring anti-theft of the said full duplex coding type of claim 1 frequency modulation power carrier microcomputer, fire prevention system, it is characterized in that the said device of reaching the standard grade (1 ') is by primary winding (L ₁), be connected in parallel on the variable capacitance (C at its two ends ₁), and the series connection secondary coil (L ₂, L ₃) and electric capacity (C ₂) constitute, device (1 ') is opposite but its input and output terminal is reached the standard grade together for the structural similarity of the same device (1 ') of reaching the standard grade of the structure of the said device that rolls off the production line (1).

3, the automatic monitoring anti-theft of full duplex coding type frequency modulation power carrier microcomputer according to claim 1 and 2, fire prevention system is characterized in that, the master of this system, shared two channels (being the uplink and downlink channels) of extension set are spaced apart 100～500KHZ.

4, according to the automatic monitoring anti-theft of the said full duplex coding type of claim 2 frequency modulation power carrier microcomputer, fire prevention system, it is characterized in that primary winding (L in the said device of reaching the standard grade (1 ') ₁) and secondary coil (L ₂, L ₃) turn ratio is 2: 1: 1, the primary winding of the said device that rolls off the production line (1) and the turn ratio of secondary coil 1: 1: 10.

5, according to the automatic monitoring anti-theft of the said full duplex coding type of claim 1 frequency modulation power carrier microcomputer, fire prevention system, it is characterized in that, comprise the UPS uninterrupted power source in said host power supply (13,14) and the Exgt Bat extension battery (26,27).

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