CN103123737B - Doorway machine tamper warning circuit - Google Patents
Doorway machine tamper warning circuit Download PDFInfo
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- CN103123737B CN103123737B CN201210588694.6A CN201210588694A CN103123737B CN 103123737 B CN103123737 B CN 103123737B CN 201210588694 A CN201210588694 A CN 201210588694A CN 103123737 B CN103123737 B CN 103123737B
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- 230000003534 oscillatory effect Effects 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000009825 accumulation Methods 0.000 claims abstract description 3
- 230000010355 oscillation Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The present invention relates to a kind of doorway machine tamper warning circuit, comprise machine or ladder-port machine circuit, tamper warning oscillatory circuit and tamper detection in front of the door and triggering circuit, the power supply of machine or ladder-port machine circuit is connected with tamper warning oscillatory circuit in front of the door; The calling line of machine or ladder-port machine circuit is connected with triggering circuit with tamper detection in front of the door; The vibration output of tamper warning oscillatory circuit is connected with triggering circuit with tamper detection; Described tamper warning oscillatory circuit will produce vibration when there being Power supply, described tamper detection and triggering circuit are made up of with calling driving circuit tamper detector switch and the standby charging circuit of a single-pole double throw or dpdt double-pole double-throw (DPDT), complete tamper detection and drive the accumulation of energy simultaneously realizing calling out first with calling. The present invention by a kind of low cost, simple and practical decomposing prevention circuit scheme, it may be achieved without micro-chip and do not have electricity to have the tamper warning function of the equipment such as the doorway machine of Power supply or ladder-port machine at ordinary times.
Description
Technical field
The present invention relates to building conversational system equipment, especially it is applied to the equipment that machine, ladder-port machine etc. in front of the door need tamper to report to the police, be particularly suitable for the existing transformation without tamper warning functional product and make it have tamper warning function.
Background technology
In current building conversational system, the tamper of the equipment such as machine or ladder-port machine mainly adopts microprocessor detect to process in front of the door, then reported to the police output by modes such as communication or this equipment jingle bells, the program is being more satisfactory containing realizing on the equipment of micro-chip, but for the equipment itself not containing micro-chip, then cost is higher, if not having on the equipment of Power supply at ordinary times, substantially cannot realize.
In addition, in building conversational system, in order to system power saving and cost-saving, machine or ladder-port machine mostly adopt discrete component design and do not have Power supply at ordinary times in front of the door, only when there being client call out or just provide machine or ladder-port machine power supply in front of the door when user monitors, less it is designed with tamper function. General micro-chip is adopted to solve the more difficult realization of tamper in this case, and the big cost of change amount is also higher.
Summary of the invention
For solving this problem, the present invention by a kind of low cost, simple and practical decomposing prevention circuit scheme, it may be achieved without micro-chip and do not have electricity to have the tamper warning function of the equipment such as the doorway machine of Power supply or ladder-port machine at ordinary times.
The present invention is achieved in that a kind of doorway machine tamper warning circuit, comprise machine or ladder-port machine circuit in front of the door, it is characterized in that: also comprising tamper warning oscillatory circuit and tamper detection and triggering circuit, the power supply of machine or ladder-port machine circuit is connected with tamper warning oscillatory circuit in front of the door; The calling line of machine or ladder-port machine circuit is connected with triggering circuit with tamper detection in front of the door; The vibration output of tamper warning oscillatory circuit is connected with triggering circuit with tamper detection. Described tamper warning oscillatory circuit will produce vibration when there being Power supply, described tamper detection and triggering circuit are made up of with calling driving circuit tamper detector switch and the standby charging circuit of a single-pole double throw or dpdt double-pole double-throw (DPDT), complete tamper detection and drive the accumulation of energy simultaneously realizing calling out first with calling.
The oscillation frequency of described tamper warning oscillatory circuit is about 0.25Hz ~ 0.1Hz, and to adjust its dutycycle be 2% ~ 30% according to the pulse width signal of calling.
The power supply of described tamper warning oscillatory circuit is powered by diode D1 by machine in front of the door or ladder-port machine circuit, again by after electric capacity C1 filtering, oscillatory circuit is formed by IC1, electric capacity C2 and C3, resistance R1 and R2, diode D2 and D3, its dutycycle regulates by resistance R1 and R2, electric capacity C3, and formula is: T1=R1*C3*ln2=0.7*R1*C3; T2=R2*C3*ln2=0.7*R2*C3; T=T1+T2, wherein T1 is vibration output high level time, and general value was at 0.1 second ~ 1 second, and T2 exports the general value of low level time at 3 seconds ~ 10 seconds for vibrating, and T is time period of oscillation.
Being preferably configured to T1 in above-mentioned tamper warning oscillatory circuit is 0.48 second, and T2 is 3.3 seconds, and T is 3.8 seconds.
Described tamper detection and triggering circuit form calling by breaking-proof switch SW2, triode Q1, resistance R3 and R4 and trigger driving circuit, form standby charging circuit by diode D5, resistance R5 and electric capacity C4.
The present invention adopts a kind of low cost, simple and practical tamper alarming technical scheme, solves and needs tamper warning function without micro-chip or non-transformer is powered at ordinary times the equipment of machine or ladder-port machine etc. in front of the door. Time standby, breaking-proof switch is pressed, in front of the door the calling line of machine or ladder-port machine by the closed node of breaking-proof switch to capacitor charging, vibration output and the Call-Control1 circuit of tamper warning oscillatory circuit are disconnected by breaking-proof switch, as long as breaking-proof switch presses no matter in front of the door whether machine or ladder-port machine have electricity all can not trigger calling line. When breaking-proof switch is upspring, the electric capacity charged disconnects and drives calling line with connecting of calling line by the closed node of breaking-proof switch, initiating call, the vibration output of tamper warning oscillatory circuit simultaneously is connected by the closed node of breaking-proof switch with Call-Control1 circuit. The equipment such as called indoor machine can be powered to machine in front of the door or ladder-port machine equipment after receiving calling, when machine or ladder-port machine equipment have electricity in front of the door, tamper warning oscillatory circuit will be started working, periodically trigger calling line and send call signal to equipment such as indoor machines, the equipment such as indoor machine receive call signal every time and all will carry out ring, reach tamper warning function. Simultaneously owing to this part tamper warning circuit associates less with machine in front of the door or ladder-port machine circuit, it is possible to realize modularization, it is applied to the simple transformation not containing tamper panalarm and makes it have tamper warning function.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the application structure block diagram of described doorway machine tamper warning circuit.
Fig. 2 is the one-piece construction block diagram of described doorway machine tamper warning circuit.
Fig. 3 is the described machine in front of the door of doorway machine tamper warning circuit or the interface chart of ladder-port machine circuit.
Fig. 4 is the tamper warning oscillatory circuit interface chart of described doorway machine tamper warning circuit.
Fig. 5 is tamper detection and the triggering circuit interface chart of described doorway machine tamper warning circuit.
Fig. 6 is the workflow diagram of described doorway machine tamper warning circuit.
Embodiment
Refer to Fig. 1 and Fig. 2, a kind of doorway machine tamper warning circuit, comprising machine or ladder-port machine circuit (101), tamper warning oscillatory circuit (102) and tamper detection in front of the door and triggering circuit (103), the power supply of machine or ladder-port machine circuit (101) is connected with tamper warning oscillatory circuit (102) in front of the door; The calling line of machine or ladder-port machine circuit (101) is connected with triggering circuit (103) with tamper detection in front of the door; The vibration output of tamper warning oscillatory circuit (102) is connected with triggering circuit (103) with tamper detection.
Refer to Fig. 3, it is the described machine in front of the door of doorway machine tamper warning circuit or the interface chart of ladder-port machine circuit. The circuit of machine or ladder-port machine circuit (101) visual or non-video intercom function for building conversational system has in front of the door, there is calling button, pressing calling button for visitor will draw low calling line to send call signal to equipment such as indoor machines, the equipment such as indoor machine receive the call signal that machine or ladder-port machine send in front of the door, will ring and open the power supply of doorway machine or ladder-port machine, it is achieved the intercommunication of machine or ladder-port machine and the equipment such as indoor or video intercom in front of the door. Dynamo-electric in front of the door road: CN2 as shown in Figure 3 is indoor machine interface; SW1 is call button and R33 composition calling circuit; D6, C29, R16, R17, R23, R24, C14, C17, C18, ZD3, C24, D7 form power source circuit; CN4, CN3, C31, IC2, IC4 and chip perimeter components and parts composition audio frequency talkback circuit; ZD1, R20, C26, C16, C22, R21, R26, Q4, R18 form unlocking signal detection circuit, D8, R31, C25, Q3, Q2, R25, R32, R22, C23, D9, J1 form output circuit of unblanking, the output of unblanking of length when IC3 and chip perimeter components and parts composition drive time delay circuit to be undertaken arranging difference by S1, C30, CN1 camera module composition video capture circuit. Form a band to unblank the video intercom dynamo-electric road in front of the door of output function.
Refer to Fig. 4, it is the tamper warning oscillatory circuit interface chart of described doorway machine tamper warning circuit. The power supply of tamper warning oscillatory circuit (102) is powered by diode D1 by machine in front of the door or ladder-port machine circuit (101), then by electric capacity C1 filtering. Forming a dutycycle by IC1, C2, R1, R2, D2, D3, C3 is the oscillatory circuit of 0.25Hz ~ 0.1Hz, and dutycycle regulates by R1, R2, C3, and formula is: T1=R1*C3*ln2=0.7*R1*C3; T2=R2*C3*ln2=0.7*R2*C3; T=T1+T2, wherein T1 is vibration output high level time, and general value was at 0.1 second ~ about 1 second, and T2 exports the general value of low level time at 3 seconds ~ about 10 seconds for vibrating, and T is time period of oscillation. Its best is set to: T1 is about 0.48 second, and T2 is about 3.3 seconds, and T is about 3.8 seconds.
Refer to Fig. 5, the tamper detection of described doorway machine tamper warning circuit and triggering circuit interface chart. Not only described tamper detection and triggering circuit (103) simultaneously but also are that vibration of reporting to the police exports and triggers change-over switch with standby charging or calling first as tamper detection by SW, form calling by Q1, R3, R4 again and trigger driving circuit, form standby charging circuit by D5, R5, C4.
When tamper does not trigger, R5 and C4 is connected by SW2, and the voltage on calling line is charged to C4 by D5, R5; Exporting by D4 but by SW2 disconnection with calling out the connection triggering driving circuit R3 of tamper warning oscillatory circuit, can not initiate to call out by the low calling line in position. When tamper triggers, SW2 triggers driving circuit R3 C4 with calling and is connected, and the electric charge of C4 draws low calling line to initiate calling Q1 conducting by R3, and after calling, doorway machine or ladder-port machine circuit will have power supply, thus tamper warning oscillatory circuit is started working; The output IC1-3 of tamper warning oscillatory circuit is connected by D4 and SW2 and R3, and periodically by the low calling line in Q1 position, the equipment such as the indoor machine of calling, complete tamper and report to the police.
Such as Fig. 6, it it is the workflow diagram of described doorway machine tamper warning circuit. Tamper does not trigger, and does not work from calling line acquisition power supply to capacitor charging oscillatory circuit and exports unsettled; Tamper triggers, and the capacitor discharge of charging is driven by calling and calling line is connect low, and oscillatory circuit exports to drive with calling and is connected; Machine or ladder-port machine circuit obtain power supply in front of the door, and oscillatory circuit is started working; Oscillatory circuit is periodically driven by calling and calling line is connect low, the equipment such as the indoor machine of calling.
Claims (5)
1. a doorway machine tamper warning circuit, comprises machine or ladder-port machine circuit in front of the door, it is characterised in that: also comprising tamper warning oscillatory circuit and tamper detection and triggering circuit, the power supply of machine or ladder-port machine circuit is connected with tamper warning oscillatory circuit in front of the door; The calling line of machine or ladder-port machine circuit is connected with triggering circuit with tamper detection in front of the door; The vibration output of tamper warning oscillatory circuit is connected with triggering circuit with tamper detection; Described tamper warning oscillatory circuit will produce vibration when there being Power supply, described tamper detection and triggering circuit are made up of with calling triggering driving circuit tamper detector switch and the standby charging circuit of a single-pole double throw or dpdt double-pole double-throw (DPDT), complete tamper detection and drive the accumulation of energy simultaneously realizing calling out first with calling.
2. doorway machine tamper warning circuit according to claim 1, it is characterised in that: the oscillation frequency of described tamper warning oscillatory circuit is 0.25Hz��0.1Hz, and to adjust its dutycycle be 2%��30% according to the pulse width signal of calling.
3. doorway machine tamper warning circuit according to claim 1, it is characterized in that: the power supply of described tamper warning oscillatory circuit is powered by diode D1 by machine in front of the door or ladder-port machine circuit, again by after electric capacity C1 filtering, oscillatory circuit is formed by chip IC 1, electric capacity C2 and C3, resistance R1 and R2, diode D2 and D3, its dutycycle regulates by resistance R1 and R2, electric capacity C3, and formula is: T1=R1*C3*ln2=0.7*R1*C3; T2=R2*C3*ln2=0.7*R2*C3; T=T1+T2, wherein T1 is vibration output high level time, and value was at 0.1 second��1 second, and T2 exports low level time value at 3 seconds��10 seconds for vibrating, and T is time period of oscillation.
4. doorway machine tamper warning circuit according to claim 3, it is characterised in that: being preferably configured to T1 in described tamper warning oscillatory circuit is 0.48 second, and T2 is 3.3 seconds, and T is 3.78 seconds.
5. doorway machine tamper warning circuit according to claim 1, it is characterized in that: described tamper detection and triggering circuit form calling by breaking-proof switch SW2, triode Q1, resistance R3 and R4 and trigger driving circuit, form standby charging circuit by diode D5, resistance R5 and electric capacity C4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588694.6A CN103123737B (en) | 2012-12-29 | 2012-12-29 | Doorway machine tamper warning circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210588694.6A CN103123737B (en) | 2012-12-29 | 2012-12-29 | Doorway machine tamper warning circuit |
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| Publication Number | Publication Date |
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| CN103123737A CN103123737A (en) | 2013-05-29 |
| CN103123737B true CN103123737B (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210588694.6A Active CN103123737B (en) | 2012-12-29 | 2012-12-29 | Doorway machine tamper warning circuit |
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| CN (1) | CN103123737B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871195B (en) * | 2014-04-04 | 2016-09-14 | 福建星网锐捷通讯股份有限公司 | A kind of building talkback alarm method, Apparatus and system |
| CN110456202B (en) * | 2019-08-23 | 2024-10-01 | 熵基科技(广东)有限公司 | Anti-disassembly machine detection control circuit and electronic equipment |
| CN111773536B (en) * | 2020-08-04 | 2025-04-22 | 西安融智芙科技有限责任公司 | A kind of intelligent multifunctional beauty instrument |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777657Y (en) * | 2005-01-19 | 2006-05-03 | 哈尔滨志阳电子科技有限公司 | Monitoring alarm for national treasury door |
| CN201327673Y (en) * | 2008-11-26 | 2009-10-14 | 福建天马电子有限公司 | Sub computer of security protection interconnected system |
| CN201327672Y (en) * | 2008-11-26 | 2009-10-14 | 福建天马电子有限公司 | Security protection interconnected system |
| CN201498029U (en) * | 2009-08-06 | 2010-06-02 | 上海宝路机电有限公司 | Anti-dismantling type door control box of electronic door control system |
| CN102708610A (en) * | 2012-06-06 | 2012-10-03 | 万科思自控信息（中国）有限公司 | Door access control system and door-lock unlocking method thereof |
| CN203242115U (en) * | 2012-12-29 | 2013-10-16 | 冠林电子有限公司 | Entrance machine tamper alarm circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000278422A (en) * | 1999-03-29 | 2000-10-06 | Aiphone Co Ltd | Interphone system for multiple dwelling housing |
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2012
- 2012-12-29 CN CN201210588694.6A patent/CN103123737B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777657Y (en) * | 2005-01-19 | 2006-05-03 | 哈尔滨志阳电子科技有限公司 | Monitoring alarm for national treasury door |
| CN201327673Y (en) * | 2008-11-26 | 2009-10-14 | 福建天马电子有限公司 | Sub computer of security protection interconnected system |
| CN201327672Y (en) * | 2008-11-26 | 2009-10-14 | 福建天马电子有限公司 | Security protection interconnected system |
| CN201498029U (en) * | 2009-08-06 | 2010-06-02 | 上海宝路机电有限公司 | Anti-dismantling type door control box of electronic door control system |
| CN102708610A (en) * | 2012-06-06 | 2012-10-03 | 万科思自控信息（中国）有限公司 | Door access control system and door-lock unlocking method thereof |
| CN203242115U (en) * | 2012-12-29 | 2013-10-16 | 冠林电子有限公司 | Entrance machine tamper alarm circuit |
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| CN103123737A (en) | 2013-05-29 |
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