CN2329053Y - Aggregation type multi-channel alarm - Google Patents
Aggregation type multi-channel alarm Download PDFInfo
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- CN2329053Y CN2329053Y CN 97231352 CN97231352U CN2329053Y CN 2329053 Y CN2329053 Y CN 2329053Y CN 97231352 CN97231352 CN 97231352 CN 97231352 U CN97231352 U CN 97231352U CN 2329053 Y CN2329053 Y CN 2329053Y
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Abstract
The utility model relates to an aggregation type multi-channel alarm, comprising a user end, a host and an external device, wherein, the host is provided with a multi-bit encoding 4-bit data transmitting circuit, a multi-bit encoding radio remote control receiving circuit, an infrared detection alarm circuit, a host state electronic switch circuit and an external expansion device. The utility model is characterized in that the host is provided with a one second timing transmitting circuit which can transmit and receive dual multi-channel encoding, the alarm is carried out by the 4-bit data plus the encoding carrier signal output, wherein, the dual multi-channel encoding is formed by that the remote control receiving at the inner part of the host adopts one group of frequencies and encoding, and the alarm transmitting adopts another group of frequencies and encoding.
Description
The utility model relates to a kind of concentrating type multichannel alarm, particularly, relate to the concentrating type multichannel receiver of described alarm.
Existing warning system mainly can be divided into two kinds of wired and wireless alarm systems, and with fastest developing speed when the number wireless alarm systems, this warning system has the not limited characteristics of degree of intelligence height, good reliability, alarm range.As " No. 15 alarm " that was occurred in 1993, it has adopted 1-15 road alerting signal, use coding-decoding circuit MC5026, MC5027, after decoding, use four and latch the alerting signal that (4-16 line) code translator MC14514 is reduced into signal on the 1-15 road of former transmission.
As Figure 1A and shown in Figure 2, wherein described this alarm, this alarm comprises: probe (is an explorer portion, select HN911 infrared acquisition mould for use), coding circuit (as mentioned above), frequency modulation post a letter special circuit (as, MC2833, its output power 10MW can install power discharging transistor additional, also can adopt as CM492).
The receiving unit of this alarm (as Figure 1B and shown in Figure 2), it has adopted high frequency amplification and single-conversion, and (it selects high frequency low noise field effect transistor K107 or K122 for use, its input impedance and gain are all than higher, help improving the sensitivity of complete machine), intermediate level circuit (adopt MC3361), shaping circuit (forming), decoding circuit (employing MC145027, it is matching used with MC1450) by triode and two joint Schmidt triggers.
In circuit shown in Figure 1A and the 1B, there is following shortcoming:
Radio-frequency power reaches 1-2W when (1) reporting to the police the transmission signal, and it does not meet the relevant regulations of national radio control, promptly can not surpass 10mW;
(2) the monitoring way is few, and alarm indication has only a state, can't install and use in large unit and residential quarters;
(3) owing to have only a receiving circuit, when reporting to the police simultaneously in the multichannel defence area, rate of false alarm is higher.
Therefore, the purpose of this utility model provides a kind of concentrating type multifunction alarm device, it adopts Computer Control Technology and multichannel concentrating type receiver technology in the wireless alarm system of one, selected advanced at present coder and decoder ic for use, overcome the shortcoming that exists in the above-mentioned prior art, realize intelligent alarm, make the reliability of warning higher, the scope of reporting to the police is unrestricted, and can be widely used for the occasion that hotel, mansion, office and residential quarters etc. need warning.
The utility model is to realize by following mode.The utility model provides a kind of concentrating type multichannel alarm, it comprises: infrared sensing head, coding circuit, sender, receiver, shaping and decoding scheme, and external unit, it is characterized in that, infrared sensing head is by the address of its switching signal control coding circuit or the height of data terminal, low level, make coding circuit MC145026 carry out four figures according to coding, sender carries out frequency modulation by FM circuit MC2833 with the pulse of coding circuit, and send with output power 2W by CM492, receiver is coded pulse by MC3361 with the signal restoring that receives, wherein dual multiplex coding is the inner remote control of alarm to be received adopt a class frequency and coding, and alarm transmission adopts another class frequency and coding, wherein in receiver circuit, directly a plurality of MC145027 are carried out parallel connection, the realization multichannel is reported to the police, then, by shaping and decoding scheme the signal that receives is carried out shaping and decoding, and carry out sound and light alarm by external display device.
Described concentrating type multichannel alarm, it is characterized in that the receivable alarm external unit of receiver can comprise the miniature rescue alarm telepilot of setting up defences, wireless transmit door status switch, telephone line dialing phonetic alarm, wired window magnetic switch and automatically controlled camera.
Described concentrating type multichannel alarm is characterized in that the transmission frequency of sender can change, and makes that the difference according to the frequency that receives is used different operation of receiver when receiving.
Described alarm circuit has and is characterised in that, has 1 second regularly radiating circuit, can transmit and receive dual multiplex coding, reports to the police according to adding the output of coding carrier signal with four figures.Owing to adopted regularly radiating circuit, enlarged the capacity of alarm in the unit interval.Again because of the application of dual multiplex coding integrated circuit, make alarm under the situation that the multi-user uses, rate of false alarm has been reduced to minimum, and wherein dual multiplex coding means the inner remote control of main frame and receives employing one class frequency and coding, and alarm transmission adopts another class frequency and coding.The transmission frequency of main frame can change, and makes that the difference according to the frequency that receives makes different operation of receiver when receiving.
Four figures can make receiving system demonstrate each user 1-4 kind state intuitively according to the biggest advantage of output alarm exactly, makes supvr's come into plain view (demonstrate warning as being divided into, cry for help, set up defences, safety etc.).
The function of outside expansion equipment increases to some extent, as adopting miniature rescue alarm telepilot; Wireless switching gate lock; Phone multichannel dialing audio alert; With automat etc.Wherein, can carry, in case of emergency, can report to the police in time, be very easy to the user owing to adopted miniature remote controlled device.Install common door lock additional coding emitting electrons switch, make the user must not change habits and customs, just can significantly reduce the rate of false alarm of alarm.The telephone line alarm can be stored 16 telephone numbers of 2-6 group, and whether 10-20 voice signal second connects the voice signal of when promptly connecting broadcast being pre-recorded by the automatic differentiation of chip circuit when reporting to the police.And for by the camera under the host computer control, field condition under can automatically snapping during detection alarm in the defence area is so that use for public security organ when clear up a criminal case.
The main circuit of main frame comprises: multipath reception machine circuit, multichannel decoder ic, multichannel decoding Display and Alarm Circuit, host work state detection circuit, power supply and standby power supply and alarm logging circuit.
On circuit, adopt the brick pattern design, the concentrating type multichannel transmits and receives alerting signal, and it is less that interior alert frequency of unit interval is interfered with each other, the capacity maximum of User Alarms; Adopt professional coder and decoder ic, the two mirror of infrared and ultrasound wave are surveyed, and make machine performance improve manyfold; The alarm host machine terminal adopts the multidigit pilot lamp to show the 1-4 kind state in each defence area; Adopt computer management, in time write down the address in time of fire alarming and defence area; The radio frequency power output of alarm is reduced in the national standard scope; The user surveys extension set and adopts the multifunctional building-block design, can select and increases and decreases arbitrarily on request according to user's needs; Main frame can carry out parallel connection with multipath receiver as required, makes user Ke Da several ten thousand families, and it can increase and decrease arbitrarily by demand.
Further specify below with reference to accompanying drawings.
Figure 1A is the circuit diagram of the radiating portion of existing alarm;
Figure 1B is the circuit diagram of existing alarm receiving unit;
Fig. 2 is the alarm synoptic diagram of available technology adopting;
Fig. 3 is the synoptic diagram according to concentrating type multichannel alarm transmitter of the present utility model;
Fig. 4 is the circuit diagram according to concentrating type multichannel alarm receiver of the present utility model;
Fig. 5 is the circuit diagram of improvement part in the concentrating type multichannel receiver of the present utility model; With
Fig. 6 is the embodiment of concentrating type multichannel receiver of the present utility model shaping and decoding scheme.
Referring to Fig. 3, can see that wherein the wireless encoding launch control unit that alarm adopts can Being the coded excitation door lock, can also be the emergency remote controller of reporting to the police, and can also be the no report from a liner of other type Alert emitter owing to adopted such mode, makes the user not have inconvenient sensation, installs It is also very simple to get up, and has greatly reduced rate of false alarm simultaneously.
Because the code signal that same frequency was transmitted in the unit interval is limited, in multi-user Da Qu system Situation under very inapplicable, so in receiver circuit design, as shown in Figure 4, adopt modern collection Group's mechanics of communication makes a channel with each frequency, and each channel is by the newspaper of the actual use of user Alert device amount is divided into the 1-50 family. Use total amount of alarm can calculate the sum of channel according to the user N, the amount rank of just total alarm being used is divided into n channel, and the launching code data are to newspaper On the alert terminal, so just can be adapted to the use of modernized multi-user residential quarter. In the unit interval, several Individual channel can transmit the code signal in defence area simultaneously, has greatly increased reliability and the newspaper of alarm The police appearance amount.
When subscriber alarm device was worked, the data terminal D1-D4 of terminal receiver decoder output was corresponding High potential drives a certain state that display circuit demonstrates the user defence area. Decoder is effectively defeated simultaneously Go out the record output port that end also triggers computer, in time with the timely interocclusal record in the address of alerts user Get off.
To realize that below preferred embodiment of the present utility model is described below:
(1) surveys (sensing) device
Though not shown concrete sensor or detector in the sniffer that the utility model the adopts diagram circuit, but for the utility model, can adopt the detection form of Fig. 3 and foregoing description to cross, and in conjunction with the prior art of Figure 1A, 1B and Fig. 2, wherein scrambler (MC145026) address code (A1-A5) and numeric data code (D6-D9) input end, set of each end, reset with the DIP switch be connected to+Vcc or (Vss).Be actually adapted range detector or sensitive switch, carry out State Control according to the input that unmatchful coding is arranged of the opening and closing state of its switch or state of a control, trigger pip.
Detector or sensor can be selected infrared sensing head (active and passive), sonac, electromechanical switch, microwave probe etc. for use according to field condition.As select the HN911 infrared detection module for use, and it monitors that the angle level can reach 120 °, detection range can reach 15 meters.When alert took place, transducing signal carried out high and low level control by electronic switch or controller to the address or the data terminal of scrambler, realizes coding.
(2) coding circuit
Scrambler adopts multiplex coding integrated circuit MC145026, (seeing also Figure 1A).This scrambler utilizes the D6-D9 four figures according to end, presses binary-coded decimal and arranges, and compiles out 2
4-1=15 road sign indicating number.So, just can put a given four figures according to sign indicating number, form a cover 15 tunnel warning systems of 15 extension sets a reception main frame to each surveillance fields.
The address end has five of A1-A5 (three-state), can form 3
5=243 kinds of address codes.Every suit warning system is only selected (or given) address for use, can form a multiple access multiple alarm system.
(3) sender
Circuit is shown in Figure 1A.Adopt frequency modulation (FM) special IC MC2833, this IC includes low frequency amplification, controlled oscillator (VCO), adjustable electric controller and output stage etc., stable performance, and function is stronger.Coded pulse is imported by 5 pin, and the radiofrequency signal behind the frequency modulation is exported by the 9th pin, and rf frequency is near 36MHz or the 49MHz, is the frequency tripling of crystal oscillator (15.5667MHz).The radiofrequency signal (about 10mW) of MC2833 output (9 pin) is through T
1Coupling adds to the C1959 high frequency amplifies, and after frequency-selecting, filtering, carries out power amplification by CM492 again.Under the normal condition, the output power of CM492 can reach 2W, and by rubber antenna or loading telescopic antenna sky is launched.
(4) receiver
In the receiver circuit shown in Figure 1B, high frequency amplifies and single-conversion is selected double grid low noise field effect transistor K107 or K122 for use, their input impedance height, and interstage matched is easy, and enlargement factor is higher.Local oscillator adopts high frequency low-noise tube C2688 or C1923, and crystal oscillator frequency is central task frequency and 10.7MHz sum, and the local frequency height helps suppressing mirror image and disturbs.Signal after the frequency multiplication and this signal are delivered to two grids of V2 (K122) respectively, and mixing draws the intermediate-freuqncy signal of 10.7KHz, behind ceramic filter filtering and buffer stage V3, adds to intermediate level circuit.
Intermediate level circuit adopts integrated circuit MC3361.This IC includes circuit such as double conversion, filtering, amplitude limit amplification and frequency discrimination.Double conversion is the intermediate frequency that utilizes 10.245MHz (connecing 1 pin) and 10.7MHz, amplifies, behind the frequency discrimination, restores the video coded pulse through the amplitude limit of external ceramic filter filtering and IC inside.
Here, it should be noted that, on the basis of circuit shown in Figure 1B, the utility model has adopted structure shown in Figure 5, promptly in circuit shown in Figure 6, omitted the MC14514 among Figure 1B, but directly a plurality of MC145027 or SC41343 are carried out parallel connection, realize the type of attachment of Fig. 5 and Fig. 6, thereby reach the effect that the concentrating type multichannel is reported to the police.
(5) shaping and decoding
Shaping circuit is by V
5Form V with two-stage Schmidt trigger (1/2 CD40106)
5Being used for amplitude limit amplifies.Video pulse is more just advised, so that reliably decipher.
Decoding scheme adopts and the supporting MC145027 of MC145026, when the address code that presets, data bit conform to coded pulse, after the affirmation of code translator discriminated union is errorless, at its 11 pin (V
T) transmit the output high level, after gate circuit 1 is anti-phase, add to the 1NH end (23 pin) of MC14514, accept to send the four figures brought in according to the position, and convert 1-16 road (Q to by 4-6 decoding scheme among the MC14514
0-Q
15) output.
When report to the police in a certain road of transmitting terminal, then a road of the MC14514 correspondence export a direct impulse (Q only draws among the figure
0Output), behind current-limiting resistance, drive VS
1Sound, optical alarm circuit wink promptly send alert signal.The design of relevant MC145026/27 coding and decoding circuit, coding and decoding process see also the related content of Figure 1A and Fig. 2.MC14514 (or CD4514) is a kind of four and latchs/4-16 line code translator (the output height is chosen) CMOS type integrated circuit that its principle of work sees also its relevant prior art statistical form, has wherein listed its decoding truth table.Here repeat no more.
Report to the police in case generation will continue to send sound and optic signal, after the duty personnel presses " reset key " or deenergization, just end.When reporting to the police, the high level of 11 pin of MC145027 output through door 3,4 twice anti-phase after, trigger SCR17, make the relay K adhesive, control electronic clock crystal failure of oscillation illustrates the time that alert takes place with the time display screen.
(6) power supply
Adopt ac buck, rectification, voltage stabilizing power supply.When civil power interrupts, by stand-by power source (+12 battery) automatic connection.
After adopting 7806 voltage stabilizings, integrated circuit such as volume, decoding power effect, acoustics circuit and control circuit employing+6v (+B such as controllable silicon, relay
2,+B
3) power supply.
Transmitting terminal coding and FM circuit+6V voltage V1 (8050) waits the control circuit of composition to control.In the state of alert at ordinary times, detector relay tip K-1 closure, V
2(9013) conducting, V
1End nothing+6V output.At this moment, MC145026, MC2833 do not have electricity and do not work, no FM signal emission.When alert, K discharges, and its contact K-1 disconnects, V
2By V
1Saturation conduction ,+6V add on MC145026, the MC2833, encode, and send FM signal.To this, because it belongs to the prior art part, so do not illustrated with accompanying drawing.
Claims (3)
1, a kind of concentrating type multichannel alarm, it comprises: infrared sensing head, coding circuit, sender, receiver, shaping and decoding scheme, and external unit, it is characterized in that, infrared sensing head is by the address of its switching signal control coding circuit or the height of data terminal, low level, make coding circuit MC145026 carry out four figures according to coding, sender carries out frequency modulation by FM circuit MC2833 with the pulse of coding circuit, and send with output power 2W by CM492, receiver is coded pulse by MC3361 with the signal restoring that receives, wherein dual multiplex coding is the inner remote control of alarm to be received adopt a class frequency and coding, and alarm transmission adopts another class frequency and coding, wherein in receiver circuit, directly a plurality of MC145027 are carried out parallel connection, the realization multichannel is reported to the police, then, by shaping and decoding scheme the signal that receives is carried out shaping and decoding, and carry out sound and light alarm by external display device.
2, concentrating type multichannel alarm as claimed in claim 1, it is characterized in that the receivable alarm external unit of receiver can comprise the miniature rescue alarm telepilot of setting up defences, wireless transmit door status switch, telephone line dialing phonetic alarm, wired window magnetic switch and automatically controlled camera.
3, concentrating type multichannel alarm as claimed in claim 1 is characterized in that the transmission frequency of sender can change, and makes that the difference according to the frequency that receives is used different operation of receiver when receiving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97231352 CN2329053Y (en) | 1997-12-22 | 1997-12-22 | Aggregation type multi-channel alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97231352 CN2329053Y (en) | 1997-12-22 | 1997-12-22 | Aggregation type multi-channel alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2329053Y true CN2329053Y (en) | 1999-07-14 |
Family
ID=33943586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97231352 Expired - Fee Related CN2329053Y (en) | 1997-12-22 | 1997-12-22 | Aggregation type multi-channel alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2329053Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100580724C (en) * | 2005-11-07 | 2010-01-13 | 皮幼林 | Light transmitted infrared detector |
| CN103473899A (en) * | 2013-09-18 | 2013-12-25 | 天津市畅悦电子科技有限公司 | Infrared signal amplification stage location coding circuit |
-
1997
- 1997-12-22 CN CN 97231352 patent/CN2329053Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100580724C (en) * | 2005-11-07 | 2010-01-13 | 皮幼林 | Light transmitted infrared detector |
| CN103473899A (en) * | 2013-09-18 | 2013-12-25 | 天津市畅悦电子科技有限公司 | Infrared signal amplification stage location coding circuit |
| CN103473899B (en) * | 2013-09-18 | 2016-02-10 | 天津市畅悦电子科技有限公司 | The position encoded circuit of a kind of infrared signal amplifier stage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Yinghua Document name: Notice of termination |
|
| 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 |