CN2256022Y

CN2256022Y - Intellectual alarming safeguard lock

Info

Publication number: CN2256022Y
Application number: CN 95202303
Authority: CN
Inventors: 诸克亮; 范一平
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-01-23
Filing date: 1995-01-23
Publication date: 1997-06-11
Anticipated expiration: 2005-01-23

Abstract

The utility model relates to an intellectual anti-theft alarm safe box. A small chamber with an outer door is fixedly arranged outside the door of the existing safe box, and a lockset and a code input keyboard are arranged in the chamber. An anti-theft alarm system comprises a temperature sensing circuit 1, a vibration sensing circuit 2, an opening signal sensing circuit 4, a central control circuit 6 and an alarm circuit 9. The utility model is characterized in that when the door of the outer chamber is opened, the opening signal sensing circuit 4 sends out signals to the central control circuit 6, and the central control circuit 6 begins to time and monitor the action of a code key. An inner door can be opened only by accurately inputting the code within set time and time intervals, or the utility model can immediately start the alarm circuit 9 to send out an alarm.

Description

The intelligent alarm strongbox

The utility model relates to a kind of strongbox with anti-theft alarm function.

At present, the strongbox of selling on the market remains there not to be the mechanical cipher formula of warning function, theftproof performance is poor, along with rapid economy development, the financial accounting department of society's every profession and trade particularly bank, public security and some confidential departments to press for theftproof performance good and have a strongbox of warning function, some producers also begin to produce the electronic cipher formula strongbox that has warning function, but still follow the old mode of unblanking mostly, just change original mechanical cipher into electronic cipher.

The purpose of this utility model is exactly to provide a kind of thief-resistant safe by microcomputer-recognized intelligent control at market demand to society.

Scheme of the present utility model is: the capacitor that a band external door is installed at existing safe door external fixation, lockset, cipher inputting keyboard promptly are installed in this chamber, and its guard against theft and alarm system comprises temperature sensing circuit, vibrating sensing circuit, enabling signal sensing circuit, central control circuit, warning circuit; By temperature sensing circuit perception burglar at the attempt electricity consumption is cut or gas cutting produces when forcing open the door or because of fire high temperature, the vibration that produces when the burglary by vibrating sensing circuit perception burglar, signal delivered to central control circuit and start warning circuit give the alarm, when opening the door of outer chamber, the enabling signal sensing circuit sends signal and gives central control circuit, central control circuit picks up counting and begins to monitor the action of password key, only in the number of times scope of setting and in the time interval, input password exactly, inside door just can be opened, and gives the alarm otherwise will start warning circuit immediately.

The utility model compared with prior art; not only when meeting vibration or abnormal case such as high temperature, identify the pilferage behavior effectively and give the alarm; and unique double swing doors has limited unlocking action and must finish at the appointed time; thereby realize general protections such as housing, door and lockset, also possessed the function of fire alarm simultaneously strongbox.

Description of drawings.

Fig. 1 is the schematic perspective view of the utility model door lock part.

Fig. 2 is a control circuit block diagram of the present utility model.

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

Fig. 4 is the enabling signal sensor of another kind of form.

Fig. 5 is the enabling signal sensor of another form.

Fig. 6 is a working programme flow chart of the present utility model.

Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1, the inside door of strongbox (2) below has loud-speaker opening (1) and is provided with loudspeaker, and the inside door upper fixed is equipped with the capacitor of a band external door (10), and handle (4), lockset (3), cipher inputting keyboard promptly are installed in this chamber; Guard against theft and alarm system then is installed in the inside of strongbox reliably.

As Fig. 2, shown in Figure 3, guard against theft and alarm system comprise temperature sensing circuit 1., the vibrating sensing circuit 2. and shaping circuit 3., the enabling signal sensing circuit 4., power circuit 5., central control circuit 6., keyboard 7., status display circuit 8., warning circuit 9.;

Power circuit consisting of 5.: civil power exports three-terminal regulator block IC1 (LM7808) to through transformer B1 transformation, rectifier bridge D1～D4 rectification, capacitor C 1, C2 filtering, the voltage stabilizing output of regulator block IC1 is exported as power supply through C3, C4 filtering again, wherein to be connected in parallel on output be standby electric power when having a power failure to rechargeable battery set E, diode D5 electrifies flow resistance every acting on to prevent that the IC1 electric current from pouring in down a chimney, and when normal the use, the output of IC1 is charged to battery pack E by luminous indicating diode BG1;

Central control circuit 6. then with single-chip microcomputer IC4 (80C31) as CPU, constitute one 8031 minimal application system with eprom memory IC6 (27C64), triple gate IC5 (74HC373) and crystal-vibration-chip, this unit links by two interrupt signal line INT0, INT1 and four I/O port P0-P3 and each functional circuit;

Temperature sensing circuit consisting of 1.: power circuit output 5. is by resistance R 3 inputs, be connected in series with it and thermistor R1 parallel with one another, R2 is actual to be the two-way sensing, the variations in temperature of difference perception two place's diverse locations, diode D7, D8 respectively with they be connected in series separately in fact play a part one or, their anode is respectively by potentiometer W2, W1 ground connection, negative electrode links to each other with the amplifier IC2 of device (LM311) anode as a comparison, potentiometer W1, W2 is used for regulating by dividing potential drop and opens controlling temperature, the negative terminal of IC2 connects diode D9, D10, resistance R 4 back ground connection are in fact as design temperature; During work, arbitrary place temperature of present position raises and causes that resistance increases in R1, R2, so the current potential of IC2 anode raises and when surpassing negative terminal current potential (being that temperature surpasses design temperature), IC3 will export a high level;

Described temperature sensing circuit is 1. at the time marquis parallel multiplex arbitrarily of needs, with the variations in temperature of perception diverse location.

2. the vibrating sensing circuit mainly is made of vibrating sensor ZD, vibrating sensor ZD is equivalent to a normal open switch, it can be the mercury probe-type, it also can be the spring oscillator formula, perhaps other conventional vibrating sensors, its negativing ending grounding, anode-Bian is by R6 ground connection, connect power supply by capacitor C 5, resistance R 5 on one side, the positive pole of capacitor C 5 is connected to inverter ic 3-1 (hex inverter 4069); When normal friction, the anode of vibrating sensor ZD is kept high level, and the positive pole of capacitor C 5 is kept high level, the IC3-1 output low level; When vibration took place and be perceived, the anode of vibrating sensor ZD became low level, so the positive pole of capacitor C 5 also becomes low level, IC3-1 exports high level;

3. the shaping treatment circuit is connected in series inverter ic 3-2 again by diode D11, D12 parallel with one another and constitutes, diode D11, D12 connect respectively temperature sensing circuit 1. with vibrating sensing circuit output 2., as one or, the output of IC3-2 directly links to each other with No. 0 interrupt pin INT0 of CPU, 1. all will make INT0 effectively cause CPU interrupt during arbitrary road output high level with the vibrating sensing circuit in 2. when temperature sensing circuit like this;

4. the enabling signal sensing circuit is made up of sensor WG, resistance R 7, capacitor C 6 and inverter ic 3-3, sensor WG can have the multiple sensors mode, adopt magnet (11), tongue tube (4) as sensor in the present embodiment, magnet (11) is installed on the external door (10), dry reed tube (4) is installed in the outer chamber, and it is in parallel with capacitor C 6, capacitor C 6 minus earths, anodal while connecting IC3-3, being connected with power output end by R7, the output of IC3-3 then directly links to each other with No. 1 interrupt pin INT1 of CPU; Tongue tube WG was closed because of magnet (11) adhesive when door was in normal closed condition, IC3 exports high level, INT0 is invalid: when external door is opened, tongue tube WG also opens, so power supply by R7 to C6 charging until C6 high level just very, the IC3 output low level makes INT1 cause that effectively CPU interrupts;

The sensor WG of described enabling signal sensing circuit in 4. can also be as Fig. 4, Figure 5 shows that a microswitch K or an optoelectronic switch form.

7. cipher inputting keyboard is 3 * 4 common numeric keypads, and its alignment, line link to each other with P1-0～P1-2, the P1-4～P1-7 of the P1 mouth of CPU respectively; Determine the key pressed by CPU scanning P1 mouth, wherein " * ", " # " handle as special keys;

8. status display circuit has two-way parallel with one another, form by the P3-1 of the P3 mouth that is serially connected in power supply and CPU, inverter ic 3-4, resistance R 9, light emitting diode BG2 and inverter ic 3-5 between the P3-5, resistance R 10, light emitting diode BG3 respectively, BG2, BG3 send gold-tinted and green glow respectively, be (6) among Fig. 1, (7), CPU by P3 mouth control point glassy yellow or green diode with the residing at that time state of expression;

9. warning circuit alternately produces the high and low frequency oscillator signal by low-frequency oscillatory network, the high-frequency oscillating circuits of routine, this output amplifies by compound amplifying triode BG8,8G9 behind a point serial connection capacitance C14, be coupled to piezoelectric ceramics and send alert acoustic alarm by coil B2 again, be connected on a point behind the P1-3 process inverter ic 3-6 of CPU by the P1 mouth, the base potential of control triode BG8, thereby the conducting of control compound transistor BG8, BG9 is amplified, and whether the decision piezoelectric ceramics sounding;

The working programme flow chart of guard against theft and alarm system is seen Fig. 6, and during use, this machine is connected power supply for the first time, then CPU begins keyboard scan, when pressing " * " key, starts the password input program, CPU reads in the data of keyboard input continuously by the P1 mouth, up to pressing " # " bond bundle, CPU at buffer area, sweeps the anchor keyboard with deposit data simultaneously once more after the password input, requiring the user to import for the second time checks, if both conform to, then password is accepted, and unpacks later on and all will use this password;

External door is closed at ordinary times, and magnet makes tongue tube WG be in attracting state, and each functional circuit is on the alert; When 1. temperature sensing circuit reaches 2. sense temperature excessively or behind the vibration signal of vibrating sensing circuit, to export a high level signal, interrupt requests end INT0 to CPU after the IC3-2 shaping sends into a low level, CPU enters and interrupts 0 handling procedure, P1-3 output high level by the P1 mouth, triode BG8, BG9 conducting make the low-and high-frequency alternating signal of warning circuit export piezoelectric ceramics to and send chimes of doom, and after chimes of doom continued the time of one section setting, CPU withdrawed from interruption; If this moment, INT0 was still effective, then CPU will enter once more and interrupt 0 handling procedure, repeat said process;

After the external door (10) of capacitor is opened, tongue tube WG open circuit, 4. the enabling signal circuit sends into a low level to the interrupt requests end INT1 of CPU, CPU enters and interrupts 1 handling procedure, start the internal counter of CPU simultaneously, CPU reads in password by the P1 mouth, if in number of times of stipulating and official hour, inputed correct password, CPU will export a high level signal by the P3-1 of P3 mouth, light green LED as indication, can continue to open the lockset of the inside this moment; If open outer " * " key of supressing behind the door, then CPU begins to change over to the modification password program, and the P3-5 by the P3 mouth exports a high signaling point glassy yellow light emitting diode and indicates as state, at this moment, as long as the correct original code of input in official hour, then original code can be eliminated, at this moment as long as do not put password as previously mentioned again; If in the number of times of regulation or in official hour if do not import proper password yet, then withdraw from interruption or overflow interruption by counter by CPU, enter and interrupt 0 handling procedure, promptly start above-mentioned temperature, vibration alarming program, this program is finished to withdraw from after also promptly once warning finishes and interrupts 0, and do not close yet as if external door (10) this moment, then enter again and interrupt 1 handling procedure, repeat said process;

Because this machine adopts 3OC31, be operated in resting state when external door is not opened, so power consumption economizes very.

Claims

1. intelligent alarm strongbox, comprise conventional insurance casing, door (2) and lockset (3) thereof, cipher inputting keyboard (8), warning loud-speaker opening (1) and burglar alarm, it is characterized in that being installed with sealing capacitor outdoors with an external door (10) at former strongbox, described lockset (3), keyboard (8) promptly is installed in this chamber, burglar alarm comprises that power circuit 5., temperature sensing circuit 1., the vibrating sensing circuit 2. and shaping circuit 3., the enabling signal sensing circuit 4., central control circuit 6., keyboard 7., status display circuit 8. with the warning drive circuit 9., the formation of each circuit is respectively:

A. power circuit 5.: civil power is transported to three-terminal regulator block IC1 through transformer B1 transformation, rectifier bridge D1～D4 rectification, capacitor C 1, C2 filtering, and regulator block IC1 voltage stabilizing output is exported as power supply through C3, C4 filtering again, supplies with each functional circuit and imports as power supply;

B. central control circuit is 6.: with single-chip microcomputer IC4 as CPU, constitute the minimal application system of a single-chip microcomputer with eprom memory IC6, triple gate IC5 and crystal-vibration-chip, and link by the two interrupt signal lines of CPU and the I/O end of four I/O ports and each functional circuit;

C. temperature sensing circuit 1.: power circuit output 5. is connected in series thermistor R1, R2 parallel with one another as the two-way TEMP by resistance R 3 input backs, diode D7, D8 respectively with they be connected in series separately as one or, their anode is respectively by potentiometer W2, W1 ground connection, negative electrode links to each other with the amplifier IC2 anode of device as a comparison, and the negative terminal of IC2 connects diode D9, D10, resistance R 4 back ground connection;

D. 2. the vibrating sensing circuit mainly is made of vibrating sensor ZD, and its negativing ending grounding, anode pass through R6 ground connection on one side, by capacitor C 5, resistance R 5 connect power supply on one side, the positive pole of capacitor C 5 is connected to inverter ic 3-1;

E. 3. the shaping treatment circuit is connected in series inverter ic 3-2 again by diode D11, D12 parallel with one another and constitutes, diode D11, D12 connect respectively temperature sensing circuit 1. with vibrating sensing circuit output 2. as one or, the output of IC3-2 directly links to each other with No. 0 interrupt pin INT0 of CPU;

F. 4. the enabling signal sensing circuit is made up of sensor, resistance R 7, capacitor C 6 and inverter ic 3-3, capacitor C 6 minus earths, anodal while connecting IC3-3, being connected with power supply by R7, the output of IC3-3 then directly links to each other with No. 1 interrupt pin INT1 of CPU;

G. 7. keyboard is 3 * 4 common numeric keypads, and its alignment, line link to each other with P1-0～P1-2, the P1-4～P1-7 of the P1 mouth of CPU respectively;

H. 8. status display circuit comprises two-way parallel with one another, is made up of the P3-1 of the P3 mouth that is serially connected in power supply and CPU, inverter ic 3-4, resistance R 9, light emitting diode BG2 and inverter ic 3-5 between the P3-5, resistance R 10, light emitting diode BG3 respectively;

I. 9. warning circuit alternately produces the high and low frequency oscillator signal by common low-frequency oscillatory network, high-frequency oscillating circuits, its output amplifies by compound amplifying triode BG8, BG9 in a point serial connection capacitor C 14 backs, be coupled to piezoelectric ceramics by coil B2 again and send alert acoustic alarm, be connected on the base potential of control compound transistor BG8, BG9 on a point behind the P1-3 process inverter ic 3-6 of CPU by the P1 mouth.

2. intelligent alarm strongbox as claimed in claim 1 is characterized in that 5. described power circuit is parallel with battery pack E power supply in support after output is connected in series anti-earial drainage diode D5.

3. intelligent alarm strongbox as claimed in claim 1 is characterized in that described temperature sensing circuit 1. can parallel multiplex.

4. intelligent alarm strongbox as claimed in claim 1 is characterized in that the sensor during described enabling signal sensing circuit 4. is magnet, tongue tube form, and magnet is installed on the door of outer chamber, and tongue tube is installed in the outer chamber.

5. intelligent alarm strongbox as claimed in claim 1 is characterized in that the sensor during described enabling signal sensing circuit 4. is a microswitch K.

6. intelligent alarm strongbox as claimed in claim 1 is characterized in that the sensor during described enabling signal sensing circuit 4. is an optoelectronic switch.