CN203415010U - Smart electronic coded lock - Google Patents

Abstract

The utility model relates to a smart electronic coded lock. The smart electronic coded lock comprises a central control unit, an input keyboard and a display module, wherein the input keyboard and the display module are in coupled connection with the central control unit; the central control unit comprises a key processing module, a decoding module and a main control module, which are in coupled connection with one another; the main control module comprises a locking/unlocking circuit and an alarm circuit. The smart electronic coded lock has the advantages that the security and anti-theft capability are high, no key is needed, and a user only need to remember the password to open the smart electronic coded lock and can set password figures freely. Meanwhile, when an input password is wrong, an alarm device can be started up, so that the safety is improved.

Description

Intelligent electronic coded lock

Technical field

The utility model relates to a kind of electronic password lock, refers in particular to a kind of Intelligent electronic coded lock of setting code numeral arbitrarily.

Background technology

Intelligent electronic coded lock is new-modernization safety management system, and it integrates microcomputer automatic identification technology and modern safety management measure, and it relates to many new technologies such as electronics, machinery, computer technology, mechanics of communication, biotechnology.It is to solve the effective measures that safety precaution management is realized in important department gateway, applicable various occasion ，Ru bank, hotel, machine room, armory, safe care registry, cubicle, intellectual communityintellectualized village, factory, family etc.

Along with the development of electronic technology, the electronic password lock replacement number of password mechanical code lock few, poor stability with functions such as burglar alarms has been inexorable trend.Intelligent electronic coded lock and the phase-locked ratio of standard machinery, have advantages of many uniquenesses: good confidentiality, anti-theft is strong, can, without key, remember that password can be unblanked.The electronic password lock major part of using is at present based on singlechip technology, take single-chip microcomputer as main devices, its scrambler and demoder be generated as software mode.In actual applications, because program is easily run and flown, the unfailing performance of system is poor.

Utility model content

The purpose of this utility model is to provide a kind of good confidentiality, Intelligent electronic coded lock that anti-theft is strong.

For solving the problems of the technologies described above, the utility model Intelligent electronic coded lock, comprising: central control unit and the input keyboard and the display module that are of coupled connections with described central control unit respectively; Wherein said central control unit comprises keystroke handling module, decoding module and the main control module that intercouples and connect; Described main control module also further comprises: lock/unlock circuit and warning circuit.

Preferably, described input keyboard is 4 * 4 keyboards.

Preferably, in described 4 * 4 keyboards, be provided with input circuit, described input circuit comprises six key circuits parallel with one another, and described key circuit is comprised of resistance and button.

Preferably, described display module adopts the light emitting diode field display of common cathode, and it has 8 light emitting diodes, and wherein 7 light emitting diodes form seven fonts, and 1 light emitting diode forms radix point.

Preferably, described warning circuit comprises: triode Q1, and the ground level of described triode Q1 is connected with signal input part, and the current collection level of described triode Q1 is connected with power supply, and the emitting stage of described triode Q1 is connected with loudspeaker.

Preferably, described main control module adopts ACEX20K family chip EP20K400BC652-2.

The utility model Intelligent electronic coded lock has good confidentiality, and anti-theft is strong, can be without key, remember the password advantage such as can unblank, and setting code numeral arbitrarily.Meanwhile, when input password mistake time can also start warning device, improved security performance.

Accompanying drawing explanation

Fig. 1 is the utility model Intelligent electronic coded lock block diagram.

Fig. 2 is the utility model Intelligent electronic coded lock input circuit figure;

Fig. 3 is the utility model Intelligent electronic coded lock warning circuit figure.

Embodiment

Below in conjunction with accompanying drawing, the utility model Intelligent electronic coded lock is described in further detail.

As shown in Figure 1, the utility model Intelligent electronic coded lock, comprising: central control unit and the input keyboard and the display module that are of coupled connections with central control unit respectively; Wherein central control unit comprises keystroke handling module, decoding module and the main control module that intercouples and connect; Main control module also further comprises: lock/unlock circuit and warning circuit.Main control module adopts ACEX20K family chip EP20K400BC652-2.

As shown in Figure 2, input keyboard is 4 * 4 keyboards.In 4 * 4 keyboards, be provided with input circuit, input circuit comprises six key circuits parallel with one another, and key circuit is comprised of resistance and button.4 * 4 keyboards are only used 11 buttons wherein.Determinant button refers to the direct key circuit consisting of dynamic scan with I/O mouth line.Each button needs eight I/O mouth lines by dynamic scan, and the button duty on every I/O mouth line can not affect the duty of other I/O mouth lines.Its Circnit Layout is flexible, and software configuration is simple, and the I/O resource taking is few.First the fixing 4 behavior high level (receiving power supply) of exporting, then export 4 and classify low level as, in the value of reading in 4 row of output, conventionally high level can be dragged down by low level, if 4 row that read in are high level, does not so certainly have button to press, otherwise, if 4 row that read in have one for low level, so this corresponding row has a button to press certainly, just can get like this row value of button.In like manner, obtaining train value is also so, first exports 4 and classifies high level as, then in output 4 behavior low levels, then reads in train value, if whom wherein has, is low level, and that of so sure correspondence shown button and pressed.After getting row value and train value, be combined into the data of 8, according to realizing different being coded in, each button mated, find after key assignments in 7 segment encode pipes demonstrations.

Display module adopts the light emitting diode field display of common cathode, and it has 8 light emitting diodes, and wherein 7 light emitting diodes form seven fonts, and 1 light emitting diode forms radix point.7 sections of displaying blocks are connected with FPGA interface and are simple, as long as 8 bit parallels outputs are connected with the light-emitting diodes tube anode pin of displaying block.8 bit parallel delivery outlets are exported different byte datas can obtain different numerals or character.

As shown in Figure 3, warning circuit comprises: triode Q1, and the ground level of triode Q1 is connected with signal input part, and the current collection level of triode Q1 is connected with power supply, and the emitting stage of triode Q1 is connected with loudspeaker.

The utility model Intelligent electronic coded lock has 13 buttons: comprise 0～9 totally 10 numerical keys and 1 acknowledgement key, 1 alarm reset key, 1 clear 0 key.After input proper password, by acknowledgement key, can open the door, under the state of opening at door, after inputting for the first time new password, confirm that again password can arrange password, the password of input shows on eight digit number code pipe, finally the numeral of input is presented at rightmost, every input one-bit digital, and the demonstration of password on charactron moves to left one.High-order zero need not input, so password can be 1～8.Initial password is 0, after powering on, by acknowledgement key, can open the door.Men Kaihou can close the door by the button of locking a door, and door will again be inputted password after shutting and just can open the door.In the process of input password, when user's key error password, system will be reported to the police, and by loudspeaker, sends chimes of doom, and when there is password mistake continuous three times, system can be reported to the police incessantly for a long time, at this moment must can stop by alarm reset key.

The utility model Intelligent electronic coded lock has good confidentiality, and anti-theft is strong, can be without key, remember the password advantage such as can unblank, and setting code numeral arbitrarily.Meanwhile, when input password mistake time can also start warning device, improved security performance.

Below the preferred embodiment of the utility model having been created illustrates, but the utility model is not limited to embodiment, those of ordinary skill in the art also can make all modification being equal to or replacement under the prerequisite without prejudice to the utility model creative spirit, and the modification that these are equal to or replacement are all included in the application's scope.

Claims (6)

1. Intelligent electronic coded lock, is characterized in that, comprising: central control unit and the input keyboard and the display module that are of coupled connections with described central control unit respectively; Wherein

Described central control unit comprises keystroke handling module, decoding module and the main control module that intercouples and connect;

Described main control module also further comprises: lock/unlock circuit and warning circuit.

2. Intelligent electronic coded lock according to claim 1, is characterized in that, described input keyboard is 4 * 4 keyboards.

3. Intelligent electronic coded lock according to claim 2, is characterized in that, in described 4 * 4 keyboards, is provided with input circuit, and described input circuit comprises six key circuits parallel with one another, and described key circuit is comprised of resistance and button.

4. Intelligent electronic coded lock according to claim 1, it is characterized in that, described display module adopts the light emitting diode field display of common cathode, and it has 8 light emitting diodes, wherein 7 light emitting diodes form seven fonts, and 1 light emitting diode forms radix point.

5. Intelligent electronic coded lock according to claim 1, it is characterized in that, described warning circuit comprises: triode Q1, and the ground level of described triode Q1 is connected with signal input part, the current collection level of described triode Q1 is connected with power supply, and the emitting stage of described triode Q1 is connected with loudspeaker.

6. Intelligent electronic coded lock according to claim 1, is characterized in that, described main control module adopts ACEX20K family chip EP20K400BC652-2.

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