CN203531557U - Remote control electronic password lock based on single-chip microcomputer - Google Patents
Remote control electronic password lock based on single-chip microcomputer Download PDFInfo
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- CN203531557U CN203531557U CN201320685289.6U CN201320685289U CN203531557U CN 203531557 U CN203531557 U CN 203531557U CN 201320685289 U CN201320685289 U CN 201320685289U CN 203531557 U CN203531557 U CN 203531557U
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Abstract
The utility model discloses a remote control electronic password lock based on a single-chip microcomputer. The remote control electronic password lock comprises a single-chip microcomputer system, an infrared transmitting module, an infrared receiving module, a key function module, an unlocking function module, an alarm function module and an LCD (liquid crystal display) module, a keyboard signal output end of the key function module is connected with a keyboard signal input end of the single-chip microcomputer, and a keyboard unlocking signal output end of the single-chip microcomputer is connected with a keyboard unlocking signal input end of the unlocking function module. On and off of an LED (light-emitting diode) lamp replace unlocking and locking of an electromagnetic lock, functions such as remote control unlocking, keyboard locking, password modification and error password alarm are realized by the aid of modular design thinking, and the remote control electronic password lock overcomes the shortcoming that an existing electronic password lock on the market can only realize keyboard unlocking or remote control unlocking. The remote control electronic password lock has the advantages of high security and security coefficient, fine flexibility and convenience in upgrading.
Description
Technical field
The utility model relates to a kind of SCM Based remote control electronic coded lock, belongs to electronic password lock technical field.
Background technology
Along with society's science and technology and people's growth in the living standard, how to realize especially outstanding that this problem of home security becomes, traditional mechanical lock is because its structure is simple, and the event of being prized is of common occurrence.Electronic password lock, because its confidentiality is high, is used flexibility good, and safety factor is high, has been subject to users' favor.With regard to current social technical level, use electronic password lock or keyboard-type electronic password lock relatively widely.Keyboard-type electronic cipher is locked in and on keyboard, inputs unlocking cipher, unlocking cipher be memory in licensee's brain in, not only accurately but also reliable, be difficult for losing, be difficult to stolenly, therefore simple to operate being easy to grasped.But the electronic password lock of previously having researched and developed makes with the unicity of demand because technical level is limited, its kind is less, confidentiality is relative still poor.Along with electronic technology is constantly brought forth new ideas and develops, the Novel electronic combination lock that society needs function reinforcement, convenience ease in use, confidentiality to strengthen in a hurry.
Summary of the invention
The purpose of this utility model is to provide a kind of SCM Based remote control electronic coded lock, to solve, inputs that Password Operations mortality is high, the problem of the complicated inconvenient user's memory of password in prior art.
The utility model adopts following technical scheme to realize goal of the invention:
A SCM Based remote control electronic coded lock, comprises SCM system, infrared transmission module, infrared receiver module, keypress function module, unlocking function module, warning function module and LCD display module.The keyboard signal output of described keypress function module is connected with the keyboard signal input of single-chip microcomputer, and the keyboard unlocking signal output of described single-chip microcomputer is connected with the keyboard unlocking signal input of described unlocking function module.
Described SCM Based remote control electronic coded lock, also comprises warning function module.The alarm signal output ends of described warning function module is connected with the alarm signal input of described SCM system.In described warning function modular circuit, buzzer, alarm lamp control end are connected with P2.6, the P2.7 mouth of single-chip microcomputer.
Preferably, described SCM system is AT89S51 single-chip microcomputer.
Preferably, described keypress function module is 4 * 4 matrix keyboard circuits.
Preferably, described LCD display module adopts LCD1602 integrated chip, and LCD control end connects single-chip microcomputer P3.3～P3.5 mouth, data termination P0.0～P0.7 mouth.
The beneficial effects of the utility model are: described SCM Based remote control electronic coded lock flexibility is high, accuracy good, and most importantly expanded function is powerful, convenience is upgraded, practicality is better.The utility model has realized infrared remote control input password unlocking and dual the unblanking of keyboard input password unlocking controlled.User, by LCD information, inputs proper password with keyboard, thereby reaches the object of unblanking.When the password of user input is correct and be to determine key pressing, single-chip microcomputer is just exported enabling signal, delivers to opening drive circuit, and then driving LED lamp is bright, reaches the object that simulation is opened the door.
Accompanying drawing explanation
Fig. 1 is system construction drawing of the present utility model.
Fig. 2 is AT89S51 SCM system pinouts of the present utility model.
Fig. 3 is keypress function module circuit diagram of the present utility model.
Fig. 4 is LCD display module circuit diagram of the present utility model.
Fig. 5 is warning function module circuit diagram of the present utility model.
Fig. 6 is system circuit diagram of the present utility model.
Fig. 7 is remote controller analogous diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in further detail.
As shown in Figure 1, a kind of SCM Based remote control electronic coded lock, comprises SCM system, infrared transmission module, infrared receiver module, keypress function module, unlocking function module, warning function module and LCD display module.The keyboard signal output of described keypress function module is connected with the keyboard signal input of single-chip microcomputer, the keyboard unlocking signal output of described single-chip microcomputer is connected with the keyboard unlocking signal input of described unlocking function module, and the alarm signal output ends of described warning function module is connected with the alarm signal input of described SCM system.
As shown in Figure 2, described AT89S51 SCM system comprises P0.0～P0.7 interface, P1.0～P1.7 interface, P2.6 interface, P2.7 interface, P3.0 interface and P3.3～P3.5 interface, and pinouts as shown in Figure 2.Power unit is whole system power supply, adopts 5V dc source.What key input section adopted is 4*4 matrix ranks keyboards, needs scanography to have or not button to press, and then identifies.What reset circuit adopted is hand-reset function, and single-chip microcomputer occurs can hand-reset single-chip microcomputer when abnormal.Crystal oscillator is partly to provide outside 12MHZ quartz-crystal resonator.
As shown in Figure 3, described keypress function module is 4 * 4 matrix keyboard circuits, and the alignment of the keyboard of keyboard input circuit is connected with single-chip microcomputer P1.4, P1.5, P1.6, P1.7 mouth, and the line of keyboard is connected with P1.0, P1.1, P1.2, P1.3 mouth.
As shown in Figure 4, described LCD display module adopts LCD1602 integrated chip.The P0 mouth of single-chip microcomputer connects 8 position datawires of LCD1602, and by output Data Control, LCD1602 shows different prompting characters.The built-in various characters of LCD1602 itself, can also self-defined demonstration character.In design, according to difference, require LCD1602 can show various prompting characters.P0.0～P0.7 connects LCD1602 control end, and wherein P3.5 meets Enable Pin E, and during write operation, Enable Pin trailing edge is effective.P3.4 connects read-write control end R/W, R/W=0, read operation; R/W=1, write operation.P3.3 meets register selecting side RS, RS=0, and directional order register during write operation, points to address register during read operation; RS=1, read operation or write operation all point to data register.The GND of LCD1602 is ground, needs ground connection; VCC is supply voltage; V0 is lcd drive voltage, connects potentiometer, controls the brightness showing by regulator potentiometer, makes LCD clear display and without shadow.
As shown in Figure 5, the buzzer of described warning function module has two pins, and wherein long foot is anodal, and short foot is negative pole.Principle of sound is that electric current passes through electromagnetic coil, makes electromagnetic coil produce magnetic field and drives vibrating membrane sounding, therefore needs the corresponding electric current could to drive it.Because the electric current of single-chip processor i/o pin output is very little, cannot drive buzzer, therefore need to increase the circuit that an electric current amplifies, generally adopt triode to carry out amplified current.The triode using in the design is NPN type, and when P2.6 mouth is output as high level, triode is in by state, and buzzer can not worked; When P2.6 mouth is output as low level, triode is in conducting state, and buzzer will be sounded.Therefore, control the output level state of P2.6 mouth, just can control the sounding of buzzer.Light emitting diode is as alarm lamp, and one end is serially connected on a pin of buzzer, and the other end is connected with the P2.7 of single-chip microcomputer, can control the light on and off of alarm lamp by controlling the level state of P2.7 port.
As shown in Fig. 6 Fig. 7, after certain button of pressing on remote controller, just have corresponding remote control mode and produce, different buttons produces different remote control modes, and then infrared rays will be produced by infrared-emitting diode, and to spatial emission.In decoding, with single-chip microcomputer, detect the pulsewidth of the signal that infrared receiving terminal produces, with 0 and 1 the number that is used for that judgement receives, then synthesize 8 code values of 4 bytes.Receiving unit, adopts the infrared receiving terminal being connected with single-chip microcomputer.Infrared receiving terminal changes into infrared pulse the infrared waveform receiving, and is input in single-chip microcomputer, through single-chip microcomputer, receives and processes, and with this, reads key value.Remote control launching system adopts Miniature remote control device, and remote controller is launched infrared rays, makes the infrared receiving unit in the machine receive induction, then starts decoding.Whether the infrared signal that corresponding receiving tube receives is correct, if correct, just starts the program of normally unblanking, just mistake is abandoned unblanking, starts alert program.Native system represents the switching of electromagnetic lock with diode D1 light on and off.When light emitting diode is bright, represent that electromagnetic lock is opened, unblank successfully, otherwise, just represent Password Input mistake.When system hardware connects, only need on P3.2 mouth, connect infrared receiving terminal, just can realize infrared remote control unlocking function.The function of control circuit of unblanking is exactly to unblank after the correct password of input.System is used single-chip microcomputer P2.0 pin to send signal, after triode amplifies, bright by Control LED lamp.In design, with the switch of light emitting diode analog representation lock, only have after lock opens, relay adhesive is to often leaving electric shock, and light emitting diode just can light; Opening and closure with Control unlock circuit in practical application.
Claims (6)
1. a SCM Based remote control electronic coded lock, it is characterized in that: comprise SCM system, infrared transmission module, infrared receiver module, keypress function module, unlocking function module, warning function module and LCD display module, the keyboard signal output of described keypress function module is connected with the keyboard signal input of single-chip microcomputer, and the keyboard unlocking signal output of described single-chip microcomputer is connected with the keyboard unlocking signal input of described unlocking function module.
2. a kind of SCM Based remote control electronic coded lock according to claim 1, is characterized in that: also comprise warning function module, the alarm signal output ends of described warning function module is connected with the alarm signal input of described SCM system.
3. a kind of SCM Based remote control electronic coded lock according to claim 1, is characterized in that: described SCM system is AT89S51 single-chip microcomputer.
4. according to a kind of SCM Based remote control electronic coded lock described in claim 1 and claim 3, it is characterized in that: described SCM system comprises: P0.0～P0.7 interface, P1.0～P1.7 interface, P2.6 interface, P2.7 interface, P3.0 interface and P3.3～P3.5 interface, the described external LCD display module of P0.0～P0.7 interface, the described external keypress function module of P1.0～P1.7 interface, the external warning function module of described P2.6 interface and P2.7 interface, the external infrared receiver module of described P3.0 interface, described P3.3～P3.5 interface is for the control of LCD display module.
5. a kind of SCM Based remote control electronic coded lock according to claim 1, is characterized in that: described keypress function module is 4 * 4 matrix keyboard circuits.
6. a kind of SCM Based remote control electronic coded lock according to claim 1, is characterized in that: described LCD display module adopts LCD1602 integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685289.6U CN203531557U (en) | 2013-10-31 | 2013-10-31 | Remote control electronic password lock based on single-chip microcomputer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320685289.6U CN203531557U (en) | 2013-10-31 | 2013-10-31 | Remote control electronic password lock based on single-chip microcomputer |
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| CN203531557U true CN203531557U (en) | 2014-04-09 |
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| CN201320685289.6U Expired - Fee Related CN203531557U (en) | 2013-10-31 | 2013-10-31 | Remote control electronic password lock based on single-chip microcomputer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464264A (en) * | 2014-12-10 | 2015-03-25 | 宁波普元电子技术有限公司 | Coding and decoding remote control circuit applied to antitheft field |
| CN104809792A (en) * | 2015-05-09 | 2015-07-29 | 长春理工大学 | LD (Laser Diode)-based digital optical code unlocking system |
| CN106703543A (en) * | 2017-02-13 | 2017-05-24 | 攀枝花学院 | Control circuit of combination lock |
| CN110409925A (en) * | 2019-08-28 | 2019-11-05 | 阜阳市医药科技工程学校 | A kind of small low-consumption button long number special electronic lock |
-
2013
- 2013-10-31 CN CN201320685289.6U patent/CN203531557U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464264A (en) * | 2014-12-10 | 2015-03-25 | 宁波普元电子技术有限公司 | Coding and decoding remote control circuit applied to antitheft field |
| CN104464264B (en) * | 2014-12-10 | 2018-03-30 | 宁波普元电子技术有限公司 | A kind of coding and decoding remote control circuit applied to antitheft field |
| CN104809792A (en) * | 2015-05-09 | 2015-07-29 | 长春理工大学 | LD (Laser Diode)-based digital optical code unlocking system |
| CN106703543A (en) * | 2017-02-13 | 2017-05-24 | 攀枝花学院 | Control circuit of combination lock |
| CN110409925A (en) * | 2019-08-28 | 2019-11-05 | 阜阳市医药科技工程学校 | A kind of small low-consumption button long number special electronic lock |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20161031 |