CN2525608Y

CN2525608Y - Answering type anti-theft alarm device

Info

Publication number: CN2525608Y
Application number: CN 02228119
Authority: CN
Inventors: 高永伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-14
Filing date: 2002-01-14
Publication date: 2002-12-11
Anticipated expiration: 2012-01-14

Abstract

The utility model relates to an answering type anti-theft alarm device which can effectively solve the anti-theft alarm problems in the important departments such as the treasury, consisting of an alarm part and an answering part. The front of a shell of the alarm part is provided with a Fresnel lens, a light-emitting diode and a key switch, the sides are provided with remote alarm interfaces, and an alarm circuit which is formed by a detection circuit, a wireless coding-launching 'inquiries' circuit, a wireless receiving-decoding 'recognition' circuit, a monostable circuit, a time delay circuit, a non-gate, a non-gate circuit, an acousto-optic alarm circuit and a power circuit is arranged inside the shell of the alarm part; an answering circuit which is formed by a wireless receiving-decoding circuit and a wireless coding-launching 'answering' circuit is arranged inside the shell of the answering part. The utility model has the advantages of novel and particular structure, automatic 'identification of friend or foe', high security, easy assembly, convenient use, high reliability and wide application market.

Description

Reply the formula burglar alarm

(1) technical field

The utility model relates to a kind of formula of replying burglar alarm of the usefulness of reporting to the police.

(2) background technology

Alarm is at some important departments, as a kind of burglary-resisting installation commonly used such as bank, museum.Mostly used burglar alarm generally is to be made of housing and warning circuit thereof at present, in use because the problem of structure itself, can not discern enemy and we, the wrong report phenomenon is often arranged, in order to prevent wrong report, generally take: (1) time-delay is set up defences: promptly owner leaves monitored district and opens after the alarm, alarm has a delay time that allows owner withdraw, and when entering monitored space, alarm has a delayed alarm time, so that owner turns off alarm; (2) remote control is set up defences: promptly owner can be outside monitored space, adopts modes such as wireless remote control, remote telephone, wired remote control, opens or turns off alarm.After though burglar alarm has been taked abovementioned technology, certain anti-theft effect is arranged, but, remote-control facilities is more loaded down with trivial details in the use, and when delayed alarm is set, is utilized delay time by experienced robber easily, destroy or turn off alarm, itself and can directly pass through the security area, thereby make alarm ineffective, do not reach the warning purpose.

(3) utility model content

At above-mentioned situation, the purpose of this utility model just provides a kind of improved novel formula of replying burglar alarm, can perform well in bank vault, machine room, the rifle storehouse, in the protection of hazardous area etc., solve the wrong report or malfunctioning of reporting to the police effectively, guarantee the safety problem in monitored district, it is to constitute by reporting to the police and replying two parts, the part of reporting to the police is that housing and interior control circuit thereof constitute, on the housing front face Fresnel Lenses is housed, luminotron and key switch socket, sidepiece has the remote alarms interface, control circuit in it is by detection circuit, wireless encoding emission " inquiry " circuit, wireless receiving decoding " identification " circuit, monostable circuit, delay circuit, not gate and NAND gate circuit, the audible and visible alarm circuit, power circuit constitutes, Fresnel Lenses is equipped with in the input end front of detection circuit, output terminal and delay circuit, not gate and NAND gate circuit link to each other, wireless encoding emission " inquiry " circuit connects power supply, signaling input relay termination, wireless receiving decoding " identification " circuit is through output terminal order equalizing network input end, monostable circuit output termination not circuit, sound light alarming circuit one termination power circuit, its output termination remote alarming system interface, above-mentioned each circuit power connects confession by power circuit, response part is made of housing and interior wireless decoding scheme and wireless encoding emission " replying " circuit thereof, two circuit are end to end to be used with the remote control of warning part, its novel structure uniqueness, can reply " enemy and we's identification " automatically, adopt the double code structure, strong security, easy to install and use, safe and reliable, it is a big inventive improvements to existing alarm, application market is wide, has huge economic and social benefit.

(4) description of drawings

Fig. 1 is a warning portion of external structural front view of the present utility model.

Fig. 2 is a response part external structure front view of the present utility model.

Fig. 3 is a circuit diagram of the present utility model.

(5) embodiment

Below in conjunction with accompanying drawing concrete structure situation of the present utility model is elaborated.

Provide by Fig. 1 to Fig. 3, the utility model is to constitute by reporting to the police and replying two parts, on warning partial shell 1 front panel Fresnel Lenses 2 is housed, red luminotron 3 is housed below lens successively, blue luminotron 4 and key switch 5, housing has remote alarms interface 6 on 1 side, by detection circuit, wireless encoding emission " inquiry " circuit, wireless receiving decoding " identification " circuit, monostable circuit, delay circuit, not gate and NAND gate circuit, the warning circuit that sound light alarming circuit and power circuit constitute is contained in the housing 1, the answering circuit (for easy to use, chaining 8 being arranged on the housing 7) that is made of wireless receiving decoding scheme and wireless encoding emission " replying " circuit is housed in the response part housing 7; The output terminal of wireless receiving decoding scheme joins with the input end of wireless encoding emission " replying " circuit, Fresnel Lenses 2 (being TJ in the circuit) output terminal and delay circuit are equipped with in the input end end front of detection circuit, not gate and NAND gate circuit link to each other, wireless encoding emission " inquiry " circuit connects the 12V power supply, signaling input relay termination J1-2, wireless receiving decoding " identification " circuit is through output terminal order equalizing network input end, the input end of monostable circuit output termination not circuit M1, sound light alarming circuit connects power circuit output end and remote alarming system interface 6 (being J2-2 remote alarms interface in Fig. 3 circuit).

In foregoing circuit, specifically being constructed as follows of each circuit:

Detection circuit is by Fresnel Lenses TJ, rpyroelectric infrared is surveyed and is touched piece IC1 (adopting the HN911L type), gain-adjusted resistance R 1, switch triode G1, resistance R 2, relay J 1, protection diode D1 constitutes, Fresnel Lenses TJ with certain curvature be contained in the IC1 front (to note the distance with angle to detection range, effect has a significant impact), resistance R 1 connects 4 pin of IC1,5 pin, 3 pin of IC1 are succeeded electrical equipment J1, J1-1, J2,3 pin of three terminal regulator IC4 and diode D1, D3,4 pin of resistance R 4 and time base circuit piece IC3,8 pin and wireless receiving decoding " identification " circuit S2, the 6 pin ground connection of IC1, output terminal 1 pin of IC1 meets diode D0 and meets switch triode G1 through resistance R 2, the grounded emitter of G1, collector connecting relay J1 and diode D1; Wireless encoding emission " inquiry " circuit is to constitute (adopting the TWH9236 type) by a multiplex coding remote controlled transmitting circuit module F1, is connected to power supply 12V and relay J 1-2 on the F1; Wireless receiving decoding " identification " circuit is to constitute (adopting the TWH9238 type) by a multichannel decoding remote-control receiving circuit module S2, and S2 connects 2 pin of time base circuit piece IC3; Monostable circuit is to be made of time-base integrated circuit IC3 (adopting 555 types), resistance R 4 and capacitor C 3, C4, and 6 pin of IC3 join with resistance R 4, capacitor C 3 and 7 pin, 5 foot meridian capacitor C4 ground connection, and 1 pin and capacitor C 3 ground connection, 3 pin link to each other with 9 pin of not gate M1; Delay circuit is by time-base integrated circuit IC2 (adopting 555 types) and capacitor C 1, C2, resistance R 3 constitutes, 4 pin of IC2,8 pin are succeeded electrical equipment contact J1-1, capacitor C 1,2 pin, 6 pin are with resistance R 3, capacitor C 1 is joined, direct earth capacitance C2 is arranged on 5 pin, 1 pin and resistance R 3 ground connection, 3 pin of IC3 connect 1 pin of 2 input "+" Sheffer stroke gate M2 through diode D2,10 pin of not gate M1 link to each other with 2 pin of 2 input "+" Sheffer stroke gate M2, and join with diode Do, 3 pin of M2 join with 5 pin of not gate M3, the 4 pin connecting resistance R7 of M3 and join with the base stage of triode G2 through resistance R 6, the emitter connecting resistance R7 of G2, the earth terminal of J2-1, collector connecting relay J2, diode D3, wherein M1, M2, M3 is made of one 4,093 four or two input nand gate integrated circuit; Sound light alarming circuit is to be made of piezoelectric buzzer BJ, red light emitting diodes LED1, blue luminescent diode LED2 and current-limiting resistance R7, R8, LED1, LED2 are connected in series the back respectively and are connected in parallel with BJ with resistance R 7, R8,1 pin 12V power supply with three terminal regulator IC4 joins, and LED1, LED2 promptly are red luminotron 3, the blue luminotrons 4 that is contained in the housing front face; Power circuit is made of transformer B, power switch K (the alarm release switch of holding concurrently), commutation diode D4-D7 and filter capacitor C5, the elementary 220V power supply that connects of transformer B, the secondary rectifier bridge input end that constitutes by diode D4-D7 that connects, be connected to capacitor C 5 on the output terminal, and output 12V direct current, supply with sound light alarming circuit and wireless encoding emission " inquiry " circuit, 12V gets the 6V direct current and supplies with other circuit behind three terminal regulator IC4; Wireless receiving decoding scheme S1 is made of a multichannel decoding remote-control receiving circuit module TWH9238, wireless encoding emission " replying " circuit is to be made of a multiplex coding remote controlled transmitting circuit module TWH9236, S1 connects the base stage of triode G3 through resistance R 9, the grounded emitter of G3, diode D8 that collector connects and connects and relay J 3, relay J 3 and diode D8 meet S1 and F2 and battery E, and F2 links to each other with the contact (J3) of relay J 3, and S1, F2 all join with ground wire.

Operating position of the present utility model is, the part of reporting to the police is placed in the security area, and response part is carried by owner.As rpyroelectric infrared detection circuit IC1, detect the infrared signal of human body by Fresnel Lenses TJ after, 1 pin of IC1 output high level is added to by resistance R 2 on the base stage of triode G1, G1 forward bias and conducting, current collection is electronegative potential very, relay J 1 gets electric adhesive, the J1-1 junction closure, and+6V supplies with delay circuit and trigger by the J1-1 contact, alarm stands alert, and its output terminal 3 pin will be exported high level after 2 seconds in time-delay.2 seconds delay times are " inquiry " recognition times of reporting to the police and replying.Delay time can be by capacitor C 1, the decision of resistance R 3 time constants.The closed wireless encoding radiating circuit module F1 that connects of relay J 1 contact J1-2, send coding wireless " inquiry " signal, if that enter the security area this moment is owner, after wireless receiving decoding scheme S1 receives wireless encoding " inquiry " signal of sending of reporting to the police, high level pulse of its unlatching output terminal output is to the G3 base stage, the G3 conducting, J3 gets electric folding, connect F2, send " replying " signal with indicate identification, S2 is when receiving the answer signal that F2 sends, after decoding affirmation " owner " identity, high level pulse of S2 unlatching output terminal output, deliver to 2 pin of IC3, the upset of triggering monostable circuit, circuit upset after monostable circuit is triggered, 3 pin are exported high level immediately and were kept 5 minutes, the high level of IC3 output is delivered to the input end of M1, and after the 9 pin input ends of M1 were high level, 10 pin were low level, making the 2 pin input ends of M2 on the one hand is that low level " is sealed up a door ", the low level of M1 output terminal 10 pin " drags down the high level of IC1 output terminal 1 pin " to low level by D0 on the other hand, and the base potential that makes G1 is a low level, G1 reverse bias and ending, collector potential is a high level, and the J1 dead electricity discharges.J1-1 disconnects, the IC2 delay circuit also not to 2 second time be dead electricity, its 3 pin is output as low level, M2 input end 2 pin are low level, and 2 of M2 input end 1 pin, 2 pin are low level like this, and M2 output terminal 3 pin are high level, M3 output terminal 4 pin are low level, the G2 reverse bias ends, not adhesive of J2, and circuit for alarming is not reported to the police.

If enter in the security area this moment is the robber: after F1 sends " inquiry " signal, S2 will can not receive " replying " signal or " replying " when signal code is not inconsistent, the pulse of S2 unlatching output terminal no-output, IC3 does not overturn, 3 pin are low level, the M1 input end is a low level, and output terminal is a high level, and M2 input end 2 pin are high level.The 3 pin output high level of chronotron time-delay IC2 after 2 seconds, M2 input end 1 pin is a high level, two input ends of M2 all are high level like this, output terminal is a low level, and M3 input end 5 pin are low levels, and output terminal 4 pin are high level, the G2 base stage is a high level, triode forward bias and conducting, the G2 current collection is low level very, the J2 adhesive, the J2-1 junction closure, circuit for alarming gets electric work, promptly sends sound and light alarm, reaches antitheft purpose.

In use, F1, S1 and F2, S2 can use two cover different frequencies respectively, and the coding and decoding circuit of different passwords makes confidentiality very high, almost do not have and decode possibility.But also can make infrared question and answer, ultrasonic type question and answer, human body probing circuit easily into, also can change detection forms such as microwave, infrared ray and magnetic control as required into, very easy, and " enemy and we's identification " automatically, safe and reliable, what overcome effectively that original alarm " enemy and we " is regardless of fails to report, misrepresents deliberately problem, has improved the strick precaution ability widely, and it is applied and must make huge contribution for society.

Claims

1, reply the formula burglar alarm, be to constitute by alarm and transponder two parts, it is characterized in that reporting to the police and Fresnel Lenses (2) is housed on partial shell (1) front panel, red luminotron (3) is housed below Fresnel Lenses successively, blue luminotron (4) and key switch (5), housing (1) has remote alarms interface (6) on the side, by detection circuit, wireless encoding emission " inquiry " circuit, wireless receiving decoding " identification " circuit, monostable circuit, delay circuit, not gate and NAND gate circuit, the warning circuit that sound light alarming circuit and power circuit constitute is contained in the housing (1); The answering circuit that is made of wireless receiving decoding scheme and wireless encoding emission " replying " circuit is housed in the response part housing (7); The output terminal of wireless receiving decoding scheme joins with the input end of wireless encoding emission " replying " circuit, Fresnel Lenses (2) is equipped with in the input end front of detection circuit, output terminal links to each other with delay circuit, not gate and NAND gate circuit, wireless encoding emission " inquiry " circuit connects the 12V power supply, signaling input relay termination J1-2, wireless receiving decoding " identification " circuit is through output terminal order equalizing network input end, the input end of monostable circuit output termination not circuit M1, sound light alarming circuit connects power circuit output end and remote alarming system interface (6).

2; the formula burglar alarm of replying according to claim 1; it is characterized in that said detection circuit is by Fresnel Lenses TJ; rpyroelectric infrared detecting module IC1; gain-adjusted resistance R 1; switch triode G1; resistance R 2; relay J 1; protection diode D1 constitutes; Fresnel Lenses TJ is contained in the IC1 front; resistance R 1 connects 4 pin of IC1; 5 pin; 3 pin of IC1 are succeeded electrical equipment J1; J1-1; J2; 3 pin of three terminal regulator IC4 and diode D1; D3; 4 pin of resistance R 4 and time base circuit piece IC3; 8 pin and wireless receiving decoding " identification " circuit S2; the 6 pin ground connection of IC1; output terminal 1 pin of IC1 meets diode Do and meets switch triode G1 through resistance R 2; the grounded emitter of G1, collector connecting relay J1 and diode D1.