CN208267576U - A kind of Intelligent lock body for realizing motor control by binary sequence code - Google Patents

Abstract

The utility model discloses a kind of Intelligent lock bodies that motor control is realized by binary sequence code, solve the problems, such as that there are security risks for existing intelligent door lock, its key points of the technical solution are that: lock body ontology is equipped with the conversion equipment for being coupled to door lock master control borad, the first filter, the first comparison unit, the first standard apparatus close to front panel in it on one side；It further include the second filter, the second comparison unit, the second standard apparatus for being coupled to conversion equipment；The first comparison unit and the second comparison unit are respectively coupled to receive the first comparison signal and the second comparison signal and export the logic selection device of selection signal, be coupled to logic selection device to receive selection signal and drive the motor driver of DC micro-motor in response to selection signal, a kind of Intelligent lock body for realizing motor control by binary sequence code of the utility model, improves the security level of intelligent door lock.

Description

A kind of Intelligent lock body for realizing motor control by binary sequence code

Technical field

The utility model belongs to intelligent door lock field, in particular to a kind of to realize motor control by binary sequence code Intelligent lock body.

Background technique

Intelligent door lock refer to be different from tradition machinery lock on the basis of it is improved, in user security, identification, managerial side The lockset of the more intelligent easy in face, intelligent door lock are the execution units locked a door in access control system.

Intelligent door lock include outside be equipped with key zone and be internally provided with the front panel of door lock master control borad, inside is equipped with The postposition panel of battery, the lock body between front panel and postposition panel.Lock body is a most crucial component, built in Core locking machine, electric clutch, DC micro-motor.And the lock body of intelligent door lock its outlet have two: one for motor power-supply wire, Forward direction 4-6V DC voltage, electrical power, electric clutch positive action, door lock unlocking are added on the power supply line；In the electricity Negative sense 4-6V DC voltage, motor reversal, electric clutch counteragent, door lock closing are added on the line of source；Another is data Feedback line, the states such as opening and closing, latch bolt alarm, the burglar alarm of primary feedback door lock.

If someone uses specific purpose tool, after drilling on the outside of intelligent door lock front panel, the power supply line of motor is ticked, this When be attached using three section dry cells with the power supply line ticked, door lock unlocking can be realized, therefore there are security risks, have and change Into space.

Utility model content

The purpose of the utility model is to provide a kind of Intelligent lock body that motor control is realized by binary sequence code, the locks Body ontology is equipped with the conversion equipment for being coupled to door lock master control borad, filter, comparison unit, electricity close to front panel on one side Machine actuating device, DC micro-motor could be driven by only being compared by the conversion of data, improve the security level of intelligent door lock.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of Intelligent lock body for realizing motor control by binary sequence code, including lock body ontology, the lock body ontology It is fixedly installed between front panel and postposition panel, the lock body ontology is equipped with coupling close to front panel in it on one side In door lock master control borad with receive door lock digital signal and be converted to the conversion equipment of door lock analog signal, be coupled to conversion equipment with It receives door lock analog signal and exports the first filter of the first analog signal, is coupled to the first filter to receive first Analog signal simultaneously exports the first comparison unit of the first comparison signal, for providing the first reference signal to the first comparison unit First standard apparatus；

It further include being coupled to conversion equipment to receive door lock analog signal and export the second filtering dress of the second analog signal It sets, be coupled to the second filter to receive the second comparison unit of the second analog signal and the second comparison signal of output, be used for The second standard apparatus of the second reference signal is provided to the second comparison unit；It is respectively coupled to the first comparison unit and second to compare Device with receive the first comparison signal and the second comparison signal and export the logic selection device of selection signal, be coupled to logic choosing Device is selected to receive selection signal and drive the motor driver of DC micro-motor in response to selection signal；

First analog signal is greater than the first reference signal and the second analog signal is greater than the second reference signal, motor driven dress Set work；Otherwise motor driver does not work.

Using the above scheme, door lock digital signal is converted to door lock analog signal by conversion equipment, the first filter and Second filter screen to specific frequency door lock analog signal and the first filtering signal of corresponding output and the second filtering are believed Number, the first filtering signal and the second filtering signal are corresponding corresponding to export compared with the first reference signal and the second reference signal Binary signal 0 or 1, eventually by logic selection device to export selection signal in motor driver, motor driver The control to DC micro-motor is realized in response to selection signal, is carried out the opening and closing for realizing door lock, is improved the security level of door lock.

Preferably, the first standard apparatus, which is adjusted, in first standard apparatus provides the size of the first reference signal.

Using the above scheme, the size of the first reference signal can be provided to the first standard apparatus according to specific use environment Specific adjusting is carried out to meet the needs of currently used environment, improves the use scope of Intelligent lock body.

Preferably, the second standard apparatus, which is adjusted, in second standard apparatus provides the size of the second reference signal.

Using the above scheme, the size of the second reference signal can be provided to the second standard apparatus according to specific use environment Specific adjusting is carried out to meet the needs of currently used environment, and combines the setting of the first regulating device, properly increases intelligence The use scope of lock body.

Preferably, first comparison unit includes being coupled to the first filter to receive the first analog signal and defeated It first follows the first of analog signal to follow circuit out, be coupled to first and follow analog signal and export the of the first comparison signal One comparison circuit.

Using the above scheme, first the first of circuit output the first mould for following analog signal to be essentially identical to input is followed Quasi- signal, but improve carrying load ability；First comparison circuit realizes that first follows analog signal and the first reference signal Relatively and export corresponding binary signal 0 or 1.

Preferably, second comparison unit includes being coupled to the second filter to receive the second analog signal and defeated It second follows the second of analog signal to follow circuit out, be coupled to second and follow analog signal and export the of the second comparison signal Two comparison circuits.

Using the above scheme, second the second of circuit output the second mould for following analog signal to be essentially identical to input is followed Quasi- signal, but improve carrying load ability；Second comparison circuit realizes that second follows analog signal and the second reference signal Relatively and export corresponding binary signal 0 or 1.

Preferably, described first follows circuit and second to follow circuit be voltage follower.

Using the above scheme, the output voltage of voltage follower is identical with input voltage, that is, voltage follower Voltage amplification factor perseverance be less than and close to 1；And voltage follower input impedance is high, and output impedance is low, improves bringing onto load energy Power.

Preferably, the conversion equipment is D/A converter.

Using the above scheme, the digital signal exported from door lock master control borad is converted to analog signal by D/A converter；Simultaneously D/A converter has relatively high resolution ratio and absolute precision.

Preferably, the motor driver is motor drive ic；

Motor drive ic is coupled to logic selection device to receive logic selection signal and in response to logic selection signal To drive DC micro-motor to operate.

Using the above scheme, logic selection device exports corresponding low and high level, and motor drive ic is in response to corresponding Low and high level simultaneously exports electric current to drive DC micro-motor to operate, and response is rapid.

In conclusion the utility model has the following beneficial effects: conversion equipment realizes digital signal to analog signal Conversion, the first filter and the second filter screen specific frequency analog signal and combine the first comparison unit and second Comparison unit exports corresponding binary signal 0 or 1, and by logic selection device and motor driver to small DC Machine is controlled, and the security level of door lock is improved.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of intelligent door lock；

Fig. 2 is the circuit diagram of conversion equipment in the present embodiment；

Fig. 3 is the circuit diagram of the first filter and the second filter in the present embodiment；

Fig. 4 is the circuit diagram of the first comparison unit and the second comparison unit in the present embodiment；

Fig. 5 is the circuit diagram of logic selection device and motor driver in the present embodiment；

Fig. 6 is truth table corresponding to logic selection device in the present embodiment.

In figure: 11, the first filter；12, the first comparison unit；121, first circuit is followed；122, the first comparison is electric Road；13, the first standard apparatus；21, the second filter；22, the second comparison unit；221, second circuit is followed；222, second Comparison circuit；23, the second standard apparatus；3, lock body ontology；4, front panel；5, postposition panel；6, conversion equipment；7, logic is selected Select device；71, first choice circuit；72, the second selection circuit；73, third selection circuit；8, motor driver；9, small-sized Direct current generator；10, mounting box.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing 1-6.

As shown in Figure 1, a kind of Intelligent lock body for realizing motor control by binary sequence code, packet disclosed in the present embodiment Lock body ontology 3 is included, and lock body ontology 3 is fixedly installed between front panel 4 and postposition panel 5.

As shown in Figure 2, Figure 3, Figure 4, lock body ontology 3(is referring to Fig.1) close to front panel 4(referring to Fig.1) one side installation Have mounting box 10(referring to Fig.1), the conversion equipment 6 for being coupled to door lock master control borad, the first filter are installed in mounting box 10 11, the first comparison unit 12, the first standard apparatus 13；Intelligent lock body further includes the second filter for being coupled to conversion equipment 6 21, the second comparison unit 22, the second standard apparatus 23, logic selection device 7, motor driver 8(are referring to Fig. 5).

As shown in Fig. 2, conversion equipment 6 is D/A converter U1,3 feet and resistance value of model TLV5616, converter U1 For one end connection of the resistance R1 of 1K, the other end of resistance R1 is connect with power supply VCC；6 feet of converter U1 respectively with capacitor C1 One end, power supply VCC connection, the other end of capacitor C1 respectively with 5 feet of converter U1, GND connect, 8 feet of converter U1 It is connect with power supply VCC, 1 foot of converter U1 is connect with the MOSI interface of door lock master control borad, 2 feet of converter U1 and door lock master control The SCLK interface of plate connects.

As shown in figure 3, the first filter 11 is its model of low-pass filter A1 LM324P, low-pass filter A1 will The frequency component of 1kh or so preserves (gain 1), remaining is all because gain is filtered out much smaller than 1.Low-pass filter The power end that connects of A1 is connect with power supply VCC, and the ground terminal of low-pass filter A1 is connect with ground GND；The same phase of low-pass filter A1 The one end for the capacitor C3 that the one end for the resistance R4 that end is respectively 318.31K with resistance value, capacity are 10nF is connect, and resistance R4's is another End is connect with the output end of low-pass filter A1；The other end of capacitor C3 respectively with capacity be 10nF capacitor C2 one end, resistance One end connection for the resistance R2 that the one end for the resistance R3 that value is 799.8, resistance value are 159.15K, the other end and low pass of capacitor C2 The output end of filter A1 connects, and the other end of resistance R3 is connect with ground GND, the other end of resistance R2 and 7 feet of converter U1 Connection.

As shown in figure 3, the second filter 21 is its model of high-pass filter A2 LM324P, high-pass filter A2 will The frequency component of 10kh or so preserves (gain 1), remaining is all because gain is filtered out much smaller than 1.High-pass filtering The power end that connects of device A2 is connect with power supply VCC, and the ground terminal of high-pass filter A2 is connect with ground GND；High-pass filter A2's is same The one end for the capacitor C7 that the one end for the resistance R9 that phase end is respectively 1.1K with resistance value, capacity are 1nF is connect, the other end of resistance R9 It is connect with the output end of high-pass filter A2；The one end for the capacitor C6 that the other end of capacitor C7 is respectively 1nF with capacity, resistance value are One end connection of one end of 238.8 resistance R8, the resistance R7 that resistance value is 530.52K, the other end of capacitor C6 and high-pass filtering The output end of device A2 connects, and the other end of resistance R8 is connect with ground GND, and the other end of resistance R7 is connect with 7 feet of converter U1.

As shown in figure 4, the first comparison unit 12 follows circuit 121 and the first comparison circuit 122 including first.First follows Circuit 121 is voltage follower B1, model LM324P；First comparison circuit 122 is comparator N1, the model of comparator N1 The power end that connects for LM293, comparator N1 is connect with power supply VCC, and the ground terminal of comparator N1 is connect with ground GND.Voltage follow The in-phase end of device B1 is connect with the output end of voltage follower B1, and the reverse side of voltage follower B1 is respectively 100K's with resistance value The output end connection of one end, low-pass filter A1 of resistance R5.The reverse side of voltage follower B1 and the anode of diode D1 connect Connect and the model 1N4148 of diode D1, the cathode of diode D1 respectively with the one end for the capacitor C4 that capacity is 0.01nF, ratio The other end of in-phase end connection compared with device N1, capacitor C4 is connect with ground GND, the reverse side and slide rheostat RP1 of comparator N1 Control terminal connection, one end of slide rheostat RP1 connect with ground GND, the other end and power supply the VCC company of slide rheostat RP1 It connects；The one end for the resistance R6 that the one end for the capacitor C5 that the output end of comparator N1 is respectively 10nF with capacity, resistance value are 318.31K Connection, the other end of resistance R6 are connect with power supply VCC, and the other end of capacitor C5 is connect with ground GND.

As shown in figure 4, the second comparison unit 22 follows circuit 221 and the second comparison circuit 222 including second.Second follows Circuit 221 is voltage follower B2, model LM324P；Second comparison circuit 222 is comparator N2, the model of comparator N2 The power end that connects for LM293, comparator N2 is connect with power supply VCC, and the ground terminal of comparator N2 is connect with ground GND.Voltage follow The in-phase end of device B2 is connect with the output end of voltage follower B2, the electricity that the reverse side of voltage follower B2 is respectively 1K with resistance value Hinder one end of R10, the output end connection of low-pass filter A2.The reverse side of voltage follower B2 is connect with the anode of diode D2 And the model 1N4148 of diode D2, the cathode of diode D2 respectively with capacity be 0.01nF capacitor C8 one end, compared with The in-phase end of device N2 connects, and the other end of capacitor C8 is connect with ground GND, and the reverse side of comparator N2 is with slide rheostat RP2's One end of control terminal connection, slide rheostat RP2 is connect with ground GND, and the other end of slide rheostat RP2 is connect with power supply VCC； The one end for the resistance R11 that the one end for the capacitor C9 that the output end of comparator N2 is respectively 10nF with capacity, resistance value are 318.31K connects It connects, the other end of resistance R11 is connect with power supply VCC, and the other end of capacitor C9 is connect with ground GND.

When first follows analog signal to be greater than the first reference signal, comparator N1 exports the signal of high level, otherwise compares Low level signal is exported compared with device N1；When second follows analog signal to be greater than the second reference signal, the high electricity of comparator N2 output Flat signal, on the contrary comparator N2 exports low level signal.

As shown in figure 5, logic selection device 7 includes first choice circuit 71, the second selection circuit 72, third selection circuit 73.First choice circuit 71 is chip UA, the model 74LS86 of chip UA；Second selection circuit 72 is chip UB, chip UB Model 7408；Third selection circuit 73 is chip UC, the model 7408 of chip UC.The input terminal a of chip UA is compared with The output end of device N1 connects, and the input terminal b of chip UA is connect with the output end of comparator N2.The input terminal c of chip UB is compared with The output end of device N1 connects, and the input terminal d of chip UB is connect with the output end of chip UA；The input terminal f and comparator of chip UC The output end of N2 connects, and the input terminal e of chip UC is connect with the output end of chip UA.

As shown in fig. 6, truth table corresponding to logic selection device, when the input terminal a of chip UA is low level and chip When the input terminal b of UA is also low level, the output end R of chip UB is low level, and the output end F of chip UC is low level；Work as core The input terminal a of piece UA is the input terminal b of low level and chip UA when being high level, and the output end R of chip UB is high level, chip The output end F of UC is low level；When the input terminal b that the input terminal a of chip UA is high level and chip UA is low level, chip The output end R of UB is low level, and the output end F of chip UC is high level；When the input terminal a of chip UA is high level and chip UA Input terminal b when being also high level, the output end R of chip UB is low level, and the output end F of chip UC is low level.

As shown in figure 5, motor driver 8 is motor drive ic U2, the model BA6287 of chip U2.Chip U2's 8 feet connects with ground GND, 6 feet and 3 feet of chip U2 with connect respectively with power supply VCC, the output of 5 feet of chip U2 and chip UB End connection, 4 feet of chip U2 are connect with the output end of chip UC.7 feet of chip U2 are connect with the anode of DC micro-motor 9, 1 foot of chip U2 is connect with the cathode of DC micro-motor 9.

The course of work:

Converter U1 receives door lock digital signal and is converted into door lock analog signal, and low-pass filter A1 is by 1kh The frequency component of left and right preserves, and high-pass filter A2 preserves the frequency component of 10kh or so, follows mould when first Quasi- signal is greater than the signal of the first reference signal comparator N1 output high level, and second follows analog signal less than the second benchmark Signal comparator N2 exports the signal of high level, and DC micro-motor 9 rotates forward；Follow analog signal less than the first benchmark when first Signal comparator N1 exports the signal of high level, and second follows analog signal to be greater than the second reference signal comparator N2 output height The signal of level, DC micro-motor 9 invert；Other situation DC micro-motors 9 do not work.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (8)

1. a kind of Intelligent lock body for realizing motor control by binary sequence code, including lock body ontology (3), the lock body ontology (3) it is fixedly installed between front panel (4) and postposition panel (5), it is characterized in that: the lock body ontology (3) is in it by nearby It sets being equipped on one side for panel (4) and is coupled to door lock master control borad to receive door lock digital signal and be converted to door lock analog signal Conversion equipment (6) is coupled to conversion equipment (6) to receive door lock analog signal and export the first filtering dress of the first analog signal It sets (11), be coupled to the first filter (11) to receive the first of the first analog signal and the first comparison signal of output and compare dress Set (12), for providing the first standard apparatus (13) of the first reference signal to the first comparison unit (12)；

It further include being coupled to conversion equipment (6) to receive door lock analog signal and export the second filter of the second analog signal (21), the second filter (21) is coupled to receive the second analog signal and export the second comparison unit of the second comparison signal (22), for providing the second standard apparatus (23) of the second reference signal to the second comparison unit (22)；It is respectively coupled to first Comparison unit (12) and the second comparison unit (22) are to receive the first comparison signal and the second comparison signal and export selection signal Logic selection device (7), be coupled to logic selection device (7) with receive selection signal and in response to selection signal it is small to drive The motor driver (8) of type direct current generator (9)；

First analog signal is greater than the first reference signal and the second analog signal is greater than the second reference signal, motor driver (8) it works；Otherwise motor driver (8) does not work.

2. a kind of Intelligent lock body that motor control is realized by binary sequence code according to claim 1, it is characterized in that: First standard apparatus (13) is adjusted the first standard apparatus (13) and provides the size of the first reference signal.

3. a kind of Intelligent lock body that motor control is realized by binary sequence code according to claim 1, it is characterized in that: Second standard apparatus (23) is adjusted the second standard apparatus (23) and provides the size of the second reference signal.

4. a kind of Intelligent lock body that motor control is realized by binary sequence code according to claim 1, it is characterized in that: First comparison unit (12) include be coupled to the first filter (11) with receives the first analog signal and output first with With the first of analog signal follow circuit (121), be coupled to first follow analog signal and export the first comparison signal first Comparison circuit (122).

5. a kind of Intelligent lock body that motor control is realized by binary sequence code according to claim 4, it is characterized in that: Second comparison unit (22) include be coupled to the second filter (21) with receives the second analog signal and output second with With the second of analog signal follow circuit (221), be coupled to second follow analog signal and export the second comparison signal second Comparison circuit (222).

6. a kind of Intelligent lock body that motor control is realized by binary sequence code according to claim 5, it is characterized in that: Described first follows circuit (121) and second to follow circuit (221) be voltage follower.

7. a kind of Intelligent lock body that motor control is realized by binary sequence code according to claim 1, it is characterized in that: The conversion equipment (6) is D/A converter.

8. a kind of Intelligent lock body that motor control is realized by binary sequence code according to claim 1, it is characterized in that: The motor driver (8) is motor drive ic；

Motor drive ic be coupled to logic selection device (7) with receive logic selection signal and in response to logic selection signal with Drive DC micro-motor (9) operating.