CN2037090U - Less wire multi-way warner - Google Patents
Less wire multi-way warner Download PDFInfo
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- CN2037090U CN2037090U CN 88215199 CN88215199U CN2037090U CN 2037090 U CN2037090 U CN 2037090U CN 88215199 CN88215199 CN 88215199 CN 88215199 U CN88215199 U CN 88215199U CN 2037090 U CN2037090 U CN 2037090U
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- 238000000034 method Methods 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000007 visual effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 229920004934 Dacron® Polymers 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
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Abstract
The utility model relates to a less wire multi-way warner which is controlled by an SCM. The addressed detectors are connected with the two bus lines in parallel and the two bus lines are a shielded cable with one core. An alarming signal is transmitted by an oscillation signal and a host gives signal demodulation and identification to the alarming signal. The utility model is provided with a power supply unit, an address display unit, an audible and visual alarming unit, a printing unit, etc. so as to integrate the fire alarm, the thief alarm and other alarms into a system. The alarming path of the utility model can be randomly selected from 1 to 1000, and the polling rate is more than 50 points per second. The polling rate can not be influenced by the treatment of the alarming situation; the connection between the detector and the bus line does not need to consider the direction. The utility model has the advantages of simple and convenient manufacture, installation and maintenance.
Description
The utility model relates to the automatic alarm monitoring device of a kind of system controlled by computer, belongs to the improvement of wired alarming device line system.
Existing warning system generally adopts empty branch system method to realize multiple alarm, it is independent each other that alarm controller connects the signal transmssion line of each detector, can not be shared, especially to extensive alarm monitoring systems such as skyscrapers, many because of line, cost is high, give construction, use and bring inconvenience.Though also invented some bus system warning systems recently, also more than four or three, cabling is still more for its Bus Wire number.The warning device that has lacks indispensable System self-test function because of reducing the line number, can not satisfy the requirement of monitoring alarm fully.
The purpose of this utility model is to provide a kind of few line system multichannel alarm, and it makes wired alarming system bus line number reduce to two, and the detector through addressing all and be connected on these two buses and can be melted into fire alarm, theft alarm and other warning among the system.Requirement such as satisfied from many aspects that departments such as production, construction, user are big to capacity, cost is low and installation and maintenance are easy.
The purpose of this utility model realizes as follows: by the pulse train of one-chip computer control output through driving gate and photoelectrical coupler make transistor by the height conducting of pulse level with end.Conduction period, main frame was powered to each detector, and bus is used to transmit alerting signal between the off period.The warning system bus is two, i.e. bus X
1, X
2, 24 volts of power supplys are connected to bus X through transistor
1On, 9 volts of power supply light emitting diode and bus X in constant current tube and photoelectrical coupler (6)
1Link to each other; The base stage of transistor (1) is connected on the transistor collector of photoelectrical coupler (4); 24 volts of power supplys are through resistance R
2And triode in the photoelectrical coupler (4) and bus X
2(ground wire) connects, and computing machine one delivery outlet links to each other through the diode of driving gate (3) with photoelectrical coupler (4), the detector 0,1,2 of process addressing ... N all is connected in parallel on bus X
1, X
2On.When the pulse train of Single-chip Controlling output is high level, transistor (1) conducting, bus X at this moment
1Last level is 24 volts (ignoring transistorized saturation voltage drop), at this moment power supply (14) is powered to the detector that all are connected on the bus, because the light emitting diode in the photoelectrical coupler (6) is in partially anti-, therefore photodiode does not have electric current to flow through, and the phototriode in the photoelectrical coupler (6) ends.When the pulse train level when low, transistor (1) ends.If the transistor (16) in all detectors ends at this moment, constant-current source circuit does not constitute the loop yet so, and the light emitting transistor in the photoelectrical coupler (6) does not still have electric current to flow through.If transistor (16) conducting in some detectors during this period, then constant-current source circuit is through bus X
1---transistor (16)---bus X
2(ground wire) constitutes the loop, and electric current flows through the light emitting diode in the photoelectrical coupler (6), thereby makes its phototriode conducting.So when the transistor in certain detector (16) is pressed a certain frequency conducting and ended, will obtain the oscillator signal of same frequency on the phototriode collector in photoelectrical coupler (6), this signal is the backhaul signals of detector.This device is given different values with the oscillation frequency in the detector of different purposes, frequency identification circuit during warning (11) identifies dissimilar warnings, gather after acousto-optic warning unit (8) and address display unit (9) are made corresponding warning automatically and the address shows for one-chip computer (7), and note by print unit (12).(13) be reset switch.
Bus of the present utility model is made up of two lines, and in the wired alarming system, the Bus Wire number has been reduced to minimum, and the alarm Bus Wire number of existing bus system is more than four.Because this device adopts oscillator signal to transmit alerting signal, main frame carries out demodulation identification to oscillation frequency, utilizes this this warning system of function just can realize fire alarm and burglar alarm simultaneously, and range of application enlarges, and effectively reduces the security system cost.The utility model increases the electric power polarity inverting circuit in detection, detector needn't be considered the wiring direction with being connected of bus, this brings great convenience to installation and maintenance, and existing bus system warning device is accomplished because of the Bus Wire number is more that this puts and also maybe can not be realized than difficulty.This alarm is for continuously checking the alarm condition of each detector, both made warning (comprising fault alarm) main frame when giving several points and reporting to the police simultaneously and show, still patrol and examine with the speed more than 50 point/seconds, promptly not reporting to the police, show to influence polling rate.The utility model can be provided with the warning way arbitrarily by keyboard or driver chuck switch (10) by computer control in 1 to 1000 scope, need not do the change of any hardware, wide accommodation, and satisfy the demand of user to various capacity.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a kind of two-wire channel synoptic diagram of the present utility model.
Fig. 2 is a working timing figure of the present utility model.
Fig. 3 is a kind of addressing detector schematic diagram of present embodiment.
Describe the sequential of whole alarm procedure in detail in conjunction with Fig. 2, Fig. 3: A, B end meets bus X respectively among Fig. 3
1, X
2The bridge rectifier circuit that polarity inverting circuit (15) is made up of four diodes, like this regardless of the electric power polarity at A, B two ends, A ' end just is being always, B ' end is always negative (being the detector ground wire).At T
0+ T
1+ T
2In the cycle, A ', B ' quilt add the 24 volts of voltages of having an appointment.Mu balanced circuit through diode (17), triode (18), stabilivolt (19) and compositions such as resistance, electric capacity obtains nearly 12 volts of stabilized voltage supplys, in order to give the power supply of COMS device.The voltage stabilizing value of stabilivolt (20) is 12 volts, stabilivolt (20) punctures conducting when A ' holds to high level (24 volts), make door (a 21) input end be high level, be output as low level (the relative detector ground wire of this level), at this moment make door (23) input end clamper in low level through diode (22), therefore the multivibrator of being made up of door (23) and door elements such as (24) is blocked failure of oscillation, and door (24) output low level is ended transistor (16).Door (21), resistance (25), electric capacity (26), diode (27) and door (28) constitute T
0The pulsewidth discriminator circuit; Door (28), resistance (29), electric capacity (30), diode (31) and door (32) constitute T
0+ T
1The pulsewidth discriminator circuit; Door (32), resistance (34), electric capacity (35) and diode (33) constitute T
0+ T
1+ T
2The pulsewidth discriminator circuit, control each detector synchronously, states such as warning, self check.Passed through T
0All after dates, door (28) output high level makes counting/code translator (36), (37), (38) zero clearing.Passing through T
0+ T
1All after dates, door (32) output low level, and the differentiating circuit of forming via resistance (39), electric capacity (40) is to its negative edge differential, the R-S trigger reset that the pulse of differentiating circuit output constitutes door (41), door (42), be the wait alarm condition after resetting, at this moment the Q end is low level.Passing through T
0+ T
1+ T
2Week after date S end is low level, and trigger is set, and the Q end is high level, is the trouble shooting state this moment.Promptly all detectors have been applied the simulation alerting signal.T
3Cycle A ' end level descends, and promptly transistor (1) ends among the figure (1), and by the constant-current source circuit control bus, at this moment stabilivolt (20) ends, and door (21) input end is a low level.Because the count value of this hour counter is 0, be equivalent to choose detector No. 0, promptly this detector is called (47) output low level through the anti-phase output high level of door (45), be in the trouble shooting state because of detector again, be that the Q end also is high level, so diode (43), (22), (44) negative pole is high level, at this moment oscillator loses blockade, by its specified frequency vibration, thereby transistor (16) also by same frequency conducting with end, also just obtained the oscillating voltage of same frequency on the photosensitive tube collector of the photoelectrical coupler (6) among the figure (1), at this moment main frame can distinguish that just No. 0 detector is working properly.Otherwise, distinguish that then detector has fault.At t
4Moment bus X
1Electrical level rising, door (21) output level descends, and negative edge makes counting/code translator (36), (37), (38) count decoding, so No. 1 detector is selected, promptly door (45) is output as high level in this detector.T
4Cycle power source is to the power supply of all detectors, and keeping the stable of COMS operating voltage, and door this moment (21) is output as low level, and oscillator is blocked failure of oscillation.T
5Week Qimen (21) is output as high level, and oscillator loses blockade for No. 1 detector, and outputting oscillation signal, main frame can distinguish that No. 1 detector is working properly after identifying this signal, otherwise undesired.By that analogy, to No. 2, No. 3 ... the N detector is checked one by one.If a certain detector work is undesired, then send fault alarm and show out of order probe address simultaneously, when the equal non-fault of all detectors, main frame just turns to T automatically
0+ T
1Cycle makes the counter O reset on all detectors and puts detector for waiting for alarm condition.Directly turn to T then
3, T
4In the cycle, because of detector is in the wait alarm condition, promptly the Q end is low level, and main frame is at T so
3, T
5Detect in cycle and then distinguish alarm free less than oscillator signal.If certain detector has alert to take place, just be equivalent to (46) closure, make the set of R-S trigger, Q end level is high, then this detector selected after, its oscillator is outputting oscillation signal, and main frame detects just distinguishes that this detector reports to the police behind this signal, sends acousto-optic and display alarm address.When the pulse of sending because of main frame made each explorer count, also counting synchronously thereupon of counter in the main frame was so main frame has also been determined the address of this detector when being checked through certain detector warning being arranged thereupon.When needs (as waiting for alarm condition or self check state) under a certain state carry out repeated detection to detector, need only each cycle detection and finish, main frame sends T automatically
0The high level pulse of width makes counter O reset, then forwards T to
3, T
4Cycle gets final product.
In concrete enforcement, alarm bus X
1, X
2Adopt a core shielded cable, X
2Be exactly screen layer, the ground connection of this cable.Main frame can be selected FD-35SI type single-chip microcomputer for use, or selects the computing machine that has acousto-optic demonstration and address demonstration for use.Transistor (1) is the BU406 transistor npn npn.The model of constant current tube (2) is 2DH20.Driving gate (3) can be used the 74LS04 type.Resistance R
1, R
2Select metalfilmresistor for use, resistance is 0.2～3 kilo-ohm.Photoelectrical coupler (4), (6) model are identical, are the GO101 type.Polarity inverting circuit (15) is made up of four 2CP11 type diodes.Transistor (16) adopts the 3DG6C transistor npn npn.Diode in the mu balanced circuit (17) model is the 2CP10 type, and triode (18) is used the 3DG6A transistor npn npn, and stabilivolt (19), (20) model are 2CW16.Diode (27), (31) are identical with (33) model, are 2CK3 type diode.Metalfilmresistor is all used in resistance (25), (29) and (34), resistance 1 megaohm.Electric capacity (26), (30) and (35) are adopted 0.1 microfarad electric capacity of the dacron respectively.Door (21), (23), (24), (28), (32), (41), (42), (45) are identical with (47) model, all are the CC4069 types.Counting/code translator (36), (37) and (38) are selected the CC4017 type for use.0,1,2 ... the N detector can be with photosensitive, air-sensitive, thermistor detector.The oscillation frequency of fire alarm and theft alarm detector can be respectively 2 kilo hertzs and 2.5 KHz.
Claims (2)
1, a kind of few line system multichannel alarm, form by computing machine, acousto-optic warning unit, address display unit, print unit and power supply, it is characterized in that the warning system bus is two, be bus X1, X2,24 volts of power supplys are connected on the bus X1 through transistor (1), and 9 volts of power supplys link to each other with bus X1 with light emitting diode in the photoelectrical coupler (6) through constant current tube (2); The base stage of transistor (1) is connected on the collector of photoelectrical coupler (4), 24 volts of power supplys are connected with bus X2 (ground wire) with triode in the photoelectrical coupler (4) through resistance, computing machine one delivery outlet links to each other through the diode of driving gate (3) with photoelectrical coupler (4), the detector 0,1,2 of process addressing ... N all is connected in parallel on bus X1, the X2.
2, alarm according to claim 1 is characterized in that transmitting various alerting signals with the oscillator signal of different frequency, constitutes T by door (21), resistance (25), electric capacity (26), diode (27) with door (28)
0The pulsewidth discriminator circuit, door (28), resistance (29), electric capacity (30), diode (31) and door (32) are formed T
0+ T
1The pulsewidth discriminator circuit, door (32), resistance (34), electric capacity (35) and diode (33) constitute T
0+ T
1+ T
2The pulsewidth discriminator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88215199 CN2037090U (en) | 1988-10-20 | 1988-10-20 | Less wire multi-way warner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88215199 CN2037090U (en) | 1988-10-20 | 1988-10-20 | Less wire multi-way warner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2037090U true CN2037090U (en) | 1989-05-03 |
Family
ID=4848032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88215199 Withdrawn CN2037090U (en) | 1988-10-20 | 1988-10-20 | Less wire multi-way warner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2037090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI395161B (en) * | 2009-12-25 | 2013-05-01 | Everday Techology Co Ltd | Communication method of an alarm system |
-
1988
- 1988-10-20 CN CN 88215199 patent/CN2037090U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI395161B (en) * | 2009-12-25 | 2013-05-01 | Everday Techology Co Ltd | Communication method of an alarm system |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |