CN2729830Y

CN2729830Y - Far infrared electronic railings

Info

Publication number: CN2729830Y
Application number: CN 200420060487
Authority: CN
Inventors: 吴冬梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-30
Filing date: 2004-07-30
Publication date: 2005-09-28
Anticipated expiration: 2014-07-30

Abstract

The utility model discloses far infrared electronic railings, comprising an infrared heat-releasing electric sensor, an infrared transmittance end and an infrared receiving end. The prewarning switch of the infrared heat-releasing electric sensor is formed by double elements according to different areas, and a detecting head which conducts gain adjustment for a circuit is designed; the infrared transmittance end is composed of transmitting-end tube state and a transmitting electronic circuit, and the infrared receiving end is composed of receiving-end tube state and a receiving electronic circuit. When the far infrared electronic railings are used, the infrared heat-releasing electric sensor of the infrared heat-releasing electric sensor receives the infrared radiation emitted in the target so as to turn the infrared radiation into weak electrical signals, the infrared radiation is transmitted to an alarm host after the infrared radiation is magnified by the electronic circuit, and then the infrared radiation is taken as the functional end for the signal detecting of an alarming end; thus the infrared heat-releasing electric sensor is extremely suitable for the stealing-preventing burglary protection system of residential houses of towns. The infrared heat-releasing electric sensor solves the problem that the current stealing-preventing alarming technology has missed alarm. The far infrared electronic railings give people safety, and thus the protective guard of the building does not need to be installed.

Description

Far infrared electronics fence

Technical field

The utility model belongs to microelectronics technology, particularly a kind of combined early warning type far infrared electronics fence that is used for warning device.

Background technology

Existing infrared warning device all is simple infrared thermal release electric induction mode, no matter be direct-injection type or reflective, problem of ubiquity, only be fit to be applied to bank, unmanned zone of action such as finance, whether it is indoor to be not suitable for being applied to private residence, is having under people's the situation and can't work, trespass because be difficult to distinguish.

Technology contents

The purpose of this utility model is to provide a kind of combined early warning type far infrared electronics fence of suitable private residence application.

The utility model is by pyroelectric infrared sensor, and infrared end and infrared ray receiving end three parts constitute.Pyroelectric infrared sensor early warning switch should adopt dual-element to form according to from different places, and design has the detecting head of gain adjusting circuit.The infrared end is made of transmitting terminal tubulose attitude and emitting electrons circuit; The infrared ray receiving end has receiving end tubulose attitude and receives the electronic circuit formation.

Infrared end 1 is to have Baltimore groove at inwall, and the tubular body the inside that has plurality of holes on the tube wall studs with the emitting electrons circuit board, and the emitting electrons circuit board is generally the 3-8 piece, and the electronic circuit on several plates is identical, and is in parallel between plate and the plate.Infrared ray receiving end 2 also is to have Baltimore groove at inwall, and the tubular body the inside that has plurality of holes on the tube wall studs with the reception electronic circuit board, and receiving electronic circuit board generally also has the 3-8 piece, and the electronic circuit on several plates is identical, and is in parallel between plate and the plate.The infrared end tubular body of electronic circuit is equipped with in inside and the tubular body of infrared ray receiving end is separately fixed on the body of wall 4 of window both sides, pyroelectric infrared sensor 3 is fixed on suitable position above the window.With lead respectively with transmitting terminal, receiving end, pyroelectric infrared sensor links to each other with the warning system main frame, promptly constituted combined early warning type far infrared electronics fence of the present utility model, the transmitting terminal electronic circuit as shown in Figure 2, by free-running multivibrator, triode and infrared emission head constitute." 555 " time-base integrated circuit A1 and peripheral cell have constituted free-running multivibrator, its frequency is 30KHz, under the Continuity signal effect that main frame transmits, the burst pulse square-wave signal that the output of A1 (3) pin is arranged, the infrared transmitting tube that promotes remote light collecting emitting head TLN911 inside after triode VT1 does the electric current amplification outwards penetrates and is approximately parallel infrared pulse light beam, this circuit cooperates with the corresponding circuit of accepting, and effective range is greater than 13m.With in parallel of top circuit, make the emitting head that multiple spot is arranged.The receiving end electronic circuit has infrared receiving terminal as shown in Figure 3, triode VT2, and VT3 and amplification circuit A2 form.The 30KHz infrared pulse light that the radiating portion of correspondence is sent here, have and adopted the TLP911 infrared receiving terminal of convex lens designs to receive, and convert corresponding electric signal to by inner photosensitive tube, this signal through C5 be coupled to VT2 carry out preposition put in advance after, be coupled to A2 (1) pin by C6, have A2 inside to amplify, shaping, band is relatively logical, makes its (7) pin output low level, and then makes VT3, VS all is in cut-off state, in case infrared beam is blocked by people or thing, then A2 has pulse signal output, and this signal amplifies through triode VT3 buffering, C10 and VD4, behind the VD5 voltage multiplying rectifier, melt method VS conducting, send alarm command to alarm host machine.Use the utility model is that the pyroelectric infrared sensor of this far infrared electronics fence is converted into ultra-weak electronic signal after having received the infrared radiation that sends in the target, after the electronic circuit processing and amplifying, pass to alarm host machine.Some characteristic of microwave that the utility model utilizes the electromagnetic wave spectrum mid and far infrared to have, as: penetration power is strong; Can modulate etc., create that multiple spot arranges, the zone can be formed sightless fence together, as long as nobody passes through, electronic circuit does not produce pulse voltage signal, just alerting signal does not take place, stops wrong report.Connect a wide-angle pyroelectric sensing switch, near taking precautions against the zone, the pyroelectric sensing device at first moves as the people, and signal is passed to the far infrared electronics fence of connection, and the warning fence starts.As the signal detection function end of warning system, extremely be suitable for anti-theft burglary-resisting system with the residential houses, cities and towns.Solve in the current civilian burglar alarm technology application, ubiquitous error warning problem is gone back safety in the common people, and then the iron bar of cancellation people building installation.Effective control distance of the present utility model is greater than 13 meters.

Description of drawings

Fig. 1 is an one-piece construction synoptic diagram of the present utility model.

Fig. 2 is the utility model transmitting terminal electronic circuitry.

Fig. 3 is the utility model receiving end electronic circuitry.

Among the figure: 1 infrared end, 2 infrared ray receiving ends, 3 pyroelectric infrared sensors, 4 bodies of wall, 5 alarm main frames.

Embodiment

Embodiment 1:

As shown in Figure 1, transmitting terminal tubular body and receiving end tubular body are made with steel pipe respectively, pyroelectric infrared sensor adopts dual-element to form, design has the detecting head of gain adjusting circuit, in the infrared partial circuit, the emitting head infrared emission head of TLN911 type band prefocus cup, A1 selects KA555 or NE555 for use, type time-base integrated circuits such as LM555, VT1 with 8050 types (Icm=1.5A, Pcm=1W) pliotron among the silicon NPN requires β＞100, VD1, VD2 1N4148 type transwitch diode, R1-R2 RTX-1/8 type carbon film resistor, C1, C3 CD11-16V type electrolytic condenser, C2 CC1 type ceramic capacitor; In the receiving unit circuit, the reception head is used and is launched the supporting focusing infrared receiving terminal of TLP911 type, the A2 special-purpose preposition vast integrated circuit of the infrared reception of CX20/60 type, and also available KA2184, the DBL2020 like product directly replaces; VS is with small-sized plastic packaging one-way SCR, as MCR100-1, and BT169,2N6565 type etc.; VT2, VT3 requires β＞=200 with 901 4 or 3DG8 type silicon NPN triode, and VD3-VD5 all uses 1N4148 type transwitch diode, R7-R15 uses RTX-1/8 type carbon film resistor, C7, C8 without exception, C11, C12 CD-25V type electrolytic condenser, all the other use small-sized ceramic capacitor without exception.

Claims

1, a kind of far infrared electronics fence is characterized in that by pyroelectric infrared sensor, and infrared end and infrared ray receiving end three parts constitute, and the infrared end is made of transmitting terminal tubulose attitude and emitting electrons circuit; The infrared ray receiving end has receiving end tubulose attitude and receives the electronic circuit formation, the infrared end tubular body of electronic circuit is equipped with in inside and the tubular body of infrared ray receiving end is separately fixed on the body of wall of window both sides, pyroelectric infrared sensor is fixed on suitable position above the window, with lead respectively with transmitting terminal, receiving end, pyroelectric infrared sensor links to each other with the warning system main frame.

2, far infrared electronics fence as claimed in claim 1 is characterized in that said pyroelectric infrared sensor according to from different places, should adopt dual-element to form, and design has the detecting head of gain adjusting circuit.

3, far infrared electronics fence as claimed in claim 1 or 2, it is characterized in that said infrared end is to have Baltimore groove at inwall, the tubular body the inside that has plurality of holes on the tube wall studs with the emitting electrons circuit board, the emitting electrons circuit board is generally the 3-8 piece, electronic circuit on several plates is identical, and is in parallel between plate and the plate.

4. the far infrared electronics fence of stating as claim 1, it is characterized in that said infrared ray receiving end is to have Baltimore groove at inwall, the tubular body the inside that has plurality of holes on the tube wall studs with the reception electronic circuit board, receive electronic circuit board the 3-8 piece is generally also arranged, electronic circuit on several plates is identical, and is in parallel between plate and the plate.

5, far infrared electronics fence as claimed in claim 3, it is characterized in that said transmitting terminal electronic circuit is by free-running multivibrator, triode and infrared emission head constitute, free-running multivibrator is made of " 555 " time-base integrated circuit and peripheral cell, under the Continuity signal effect that main frame transmits, output burst pulse square-wave signal, the infrared transmitting tube that promotes remote light collecting emitting head inside after triode amplifies outwards penetrates and is approximately parallel infrared pulse light beam, with in parallel of top circuit, make the emitting head that multiple spot is arranged.

6, the far infrared electronics fence of stating as claim 4, it is characterized in that said receiving end electronic circuit has infrared receiving terminal, triode and amplification circuit are formed, infrared receiving terminal has adopted the TLP911 of convex lens designs to receive head, the infrared pulse light that is spread out of by the infrared emission end converts corresponding electric signal to by the reception of reception head and by inner photosensitive tube, this signal is amplifying by being coupled to amplification circuit after being coupled to that triode is preposition and putting in advance, shaping, band is relatively logical, output low level, and then make next stage triode and diode be in cut-off state.