Intelligent door control security system
By employing a dual verification mechanism involving the main control module, button module, and IC card recognition module, combined with optocouplers and H-bridge drive motor locks, the system addresses the security deficiencies of existing door control security systems, achieving a higher balance between security and flexibility.
Patent Information
- Application Number
- CN202423177418.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing access control security systems can be opened by allowing any preset identification method, which reduces security and fails to effectively balance security and flexibility.
The system employs a combination of a main control module, a button module, an IC card recognition module, and a logic module. Through a dual verification mechanism, it ensures that the motor lock is only driven to perform unlocking or locking operations after the password is entered through the button module and verified by the IC card recognition module. The motor lock is driven by an optocoupler and an H-bridge to achieve dual security control.
It improves the security of the access control system by enhancing the security of access management through a dual verification mechanism, and is suitable for various places that require access control management.
Smart Images
Figure CN223526743U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the security technology field, specifically, relate to a kind of intelligent door control security system. BACKGROUND
[0002] The door control security system is a kind of advanced security management system integrated modern information technology, it uses advanced technology such as Internet of Things, big data, artificial intelligence, realizes real-time monitoring and management to entrance and exit. With the rapid development of science and technology, door control security system has welcomed the rapid development, has become the indispensable solid defense line for guarding the safety of many places. These advanced systems have fused a variety of leading recognition technologies, from fingerprint unlocking to facial recognition, to smart card verification, showing high flexibility and convenience, adapting to the security needs in different scenarios, providing efficient, safe and convenient access management for various important areas (such as enterprises, residential areas, government offices, prisons, schools, etc.).
[0003] However, many door control security systems in current practical application, often allow to open through any one preset identification method, which undoubtedly opens the door for potential security threats, reduces the tightness of overall protection. Therefore, while pursuing technological innovation and convenient experience, how to balance security and flexibility has become a key issue to be solved in the field of door control security. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a kind of intelligent door control security system, solve the technical problem of low security coefficient caused by the independent lock opening form of existing door control security.
[0005] The technical scheme of the utility model is as follows:
[0006] A kind of intelligent door control security system, including main control module, power supply module, motor lock driving module, key module, IC card identification module and logic module, the power supply module is powered to the whole system, the key module is connected with the main control module, for controlling the main control module output lock signal and lock signal, the IC card identification module is connected with the main control module, for controlling the main control module output check signal, the input of the logic module is connected with the main control module, the output of the logic module is connected with the motor lock driving module,
[0007] The logic module includes an AND gate U1, a photocoupler U2 and a photocoupler U3, a first input end of the AND gate U1 receives an unlocking signal output by the master control module, a second input end of the AND gate U1 receives a check signal output by the master control module, an output end of the AND gate U1 is connected to an input end of the photocoupler U2 through a resistor R3, an output end of the photocoupler U2 is connected to a motor lock driving module, an input end of the photocoupler U3 receives a locking signal output by the master control module through a resistor R4, and an output end of the photocoupler U3 is connected to the motor lock driving module.
[0008] Further, the motor lock driving module includes switch tubes Q3, Q4, Q5 and Q6 connected in the form of an H-bridge, the switch tubes Q3 and Q6 are upper bridge arms of the H-bridge, the switch tubes Q4 and Q5 are lower bridge arms of the H-bridge, the H-bridge is used for driving a motor, a gate of the switch tube Q3 is connected to an output end of the photocoupler U2 through a first driving branch, a gate of the switch tube Q5 is connected to the output end of the photocoupler U2 through a second driving branch, a gate of the switch tube Q4 is connected to an output end of the photocoupler U3 through a third driving branch, and a gate of the switch tube Q6 is connected to the output end of the photocoupler U3 through a fourth driving branch.
[0009] Further, the first driving branch, the second driving branch, the third driving branch and the fourth driving branch have the same connection structure, the first driving branch includes a triode Q2, a diode D1, a resistor R2 and a resistor R6, a base of the triode Q2 is connected to the output end of the photocoupler U2, the base of the triode Q2 is connected to a power supply through the resistor R2, a collector of the triode Q2 is connected to the power supply through the resistor R6, an emitter of the triode Q2 is connected to a gate of the switch tube Q3, an anode of the diode D1 is connected to the emitter of the triode Q2, and a cathode of the diode D1 is connected to the base of the triode Q2.
[0010] Further, the IC card identification module includes a radio frequency transmitting circuit and a radio frequency receiving circuit, an input end of the radio frequency transmitting circuit and an output end of the radio frequency receiving circuit are connected to the master control module.
[0011] Further, the radio frequency transmitting circuit comprises a resistor R14, a transistor Q10, a transistor Q11, a switch tube Q9, a resistor R13, a capacitor C1 and an antenna L1, a first end of the resistor R14 is connected to the master control module, a second end of the resistor R14 is connected to the base of the transistor Q10, the collector of the transistor Q10 is connected to a power supply, the emitter of the transistor Q10 is connected to the collector of the transistor Q11, the base of the transistor Q11 is connected to the second end of the resistor R14, the emitter of the transistor Q11 is grounded, the collector of the transistor Q11 is connected to the gate of the switch tube Q9, the source of the switch tube Q9 is grounded, the drain of the switch tube Q9 is connected to the power supply through the resistor R13, the drain of the switch tube Q9 is grounded through the capacitor C1, and the drain of the switch tube Q9 is connected to the antenna L1.
[0012] Further, the radio frequency receiving circuit comprises an antenna L2, a resistor R15, a diode D9, a capacitor C4, an operational amplifier U7, a resistor R17, a capacitor C4, a capacitor C3 and a resistor R16, the antenna L2 is connected to the anode of the diode D9 through the resistor R15, the cathode of the diode D9 is connected to the non-inverting input end of the operational amplifier U7 through the capacitor C4, the inverting input end of the operational amplifier U7 is connected to the output end of the operational amplifier U7 through the resistor R17, the capacitor C4 is connected in parallel to the resistor R17, and the output end of the operational amplifier U7 is connected to the master control module in sequence through the capacitor C3 and the resistor R16.
[0013] The utility model discloses a working principle and beneficial effect are as follows:
[0014] In the utility model, when the password input through the key module and the IC card information identified by the IC card identification module are verified to be valid by the master control module, the door U1 receives the high level unlocking signal and the check signal output by the master control module, and only then an effective signal is output to drive the light coupling U2 to turn on, and then the motor lock driving module carries out the unlocking work. When the master control module identifies that the lock is to be closed through the key module, the high level lock signal is output to drive the light coupling U3 to turn on, and then the motor lock driving module carries out the lock closing work. Through the cooperation of the key module and the IC card identification module, the user can conveniently control the opening and closing of the door, and the double-layer mechanism also enhances the security of the door control security, and is suitable for various places requiring access control management.
[0015] The utility model will be further explained in detail in connection with the drawings and specific embodiments. DRAWINGS
[0016] Figure 1 It is the circuit diagram of logic module in the utility model;
[0017] Figure 2 It is the circuit diagram of motor driving module in the utility model.
[0018] Figure 3 This is a circuit diagram of the radio frequency transmitting circuit in this utility model;
[0019] Figure 4 This is a circuit diagram of the radio frequency receiving circuit in this utility model. Detailed Implementation
[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0021] Example 1
[0022] This embodiment proposes an intelligent door control security system, including a main control module, a power supply module, a motor lock drive module, a button module, an IC card recognition module, and a logic module. The power supply module supplies power to the entire system. The button module is connected to the main control module and is used to control the main control module to output unlock and lock signals. The IC card recognition module is connected to the main control module and is used to control the main control module to output verification signals. The input terminal of the logic module is connected to the main control module, and the output terminal of the logic module is connected to the motor lock drive module.
[0023] In this embodiment, the locking function is implemented through a button module, and the unlocking function is implemented through a button module and an IC card recognition module. When unlocking is required, the user first enters a password through the button module. After verification by the main control module, a high-level unlock signal is output to the logic module. Simultaneously, the IC card recognition module is activated. Then, the user swipes their card, and after verification by the main control module, a high-level verification signal is output to the logic module. These two high-level signals are processed by the logic module and then drive the motor lock driver module to open the door. When locking is required, pressing a specific button on the button module triggers a high-level locking signal from the main control module. After processing by the logic module, the motor lock driver module is activated to close the door.
[0024] like Figure 1 As shown, the logic module includes an AND gate U1, an optocoupler U2, and an optocoupler U3. The first input of the AND gate U1 receives the unlocking signal output by the main control module, and the second input of the AND gate U1 receives the verification signal output by the main control module. The output of the AND gate U1 is connected to the input of the optocoupler U2 through a resistor R3. The output of the optocoupler U2 is connected to the motor lock drive module. The input of the optocoupler U3 receives the locking signal output by the main control module through a resistor R4, and the output of the optocoupler U3 is connected to the motor lock drive module.
[0025] When the password input by the key module and the IC card information recognized by the IC card recognition module are verified as valid by the main control module, the AND gate U1 receives the high-level unlocking signal and the check signal output by the main control module, and only then outputs an effective signal to drive the light coupling U2 to turn on, thereby enabling the motor lock driving module to perform the unlocking operation. When the main control module recognizes that the lock should be closed through the key module, the high-level lock signal output by the main control module drives the light coupling U3 to turn on, thereby enabling the motor lock driving module to perform the lock closing operation. The light coupling U2 and the light coupling U3 receive the output signal of the AND gate U1 and the lock signal output by the main control module, respectively, for isolation and transmission. The inverter U4 and the inverter U5 perform inverting processing on the output signal of the light coupling to meet the requirements of the motor lock driving module.
[0026] As shown in Figure 2 , the motor lock driving module includes the switching tube Q3, the switching tube Q4, the switching tube Q5 and the switching tube Q6 connected in the form of an H bridge, the switching tube Q3 and the switching tube Q6 serving as the upper bridge arm of the H bridge, the switching tube Q4 and the switching tube Q5 serving as the lower bridge arm of the H bridge, and the H bridge being used for driving the motor. When the switching tube Q3 and the switching tube Q5 are turned on, the motor rotates in the forward direction to realize the unlocking function, and when the switching tube Q4 and the switching tube Q6 are turned on, the motor rotates in the reverse direction to realize the lock closing function.
[0027] In this embodiment, the gate of the switching tube Q3 is connected to the output end of the light coupling U2 through a first driving branch, the gate of the switching tube Q5 is connected to the output end of the light coupling U2 through a second driving branch, the gate of the switching tube Q4 is connected to the output end of the light coupling U3 through a third driving branch, and the gate of the switching tube Q6 is connected to the output end of the light coupling U3 through a fourth driving branch. The output signal of the logic module controls the gates of the switching tubes through the driving branches, thereby controlling the rotating direction and speed of the motor. The first driving branch, the second driving branch, the third driving branch and the fourth driving branch have the same connection structure.
[0028] As shown in Figure 2 , the first driving branch includes the triode Q2, the diode D1, the resistor R2 and the resistor R6. The base of the triode Q2 is connected to the output end of the light coupling U2, the base of the triode Q2 is connected to the power supply through the resistor R2, the collector of the triode Q2 is connected to the power supply through the resistor R6, the emitter of the triode Q2 is connected to the gate of the switching tube Q3, the anode of the diode D1 is connected to the emitter of the triode Q2, and the cathode of the diode D1 is connected to the base of the triode Q2.
[0029] The driving branch in the embodiment is used for enhancing the driving capability of the signal and ensuring that the switch tube can be reliably switched on and off. Taking the control of the switch tube Q3 by the first driving branch as an example, when the signal A output by the optocoupler U2 is a low-level signal, the gate capacitance of the switch tube Q3 is short-circuited through the diode D1, and when the signal A output by the optocoupler U2 is a high-level signal, the gate capacitance of the switch tube Q3 obtains current and voltage through the triode Q2, the charging capability is improved, and the switch tube Q3 is turned on faster.
[0030] Further, the IC card identification module comprises a radio frequency transmitting circuit and a radio frequency receiving circuit, and the input end of the radio frequency transmitting circuit and the output end of the radio frequency receiving circuit are connected to the main control module. The radio frequency transmitting circuit is used for driving a standard 125 kHz carrier signal, and the radio frequency receiving circuit is used for extracting the unique number of the user IC card from the carrier signal.
[0031] As shown in Figure 3 , the radio frequency transmitting circuit comprises a resistor R14, a triode Q10, a triode Q11, a switch tube Q9, a resistor R13, a capacitor C1 and an antenna L1, the first end of the resistor R14 is connected to the main control module, the second end of the resistor R14 is connected to the base of the triode Q10, the collector of the triode Q10 is connected to the power supply, the emitter of the triode Q10 is connected to the collector of the triode Q11, the base of the triode Q11 is connected to the second end of the resistor R14, the emitter of the triode Q11 is grounded, the collector of the triode Q11 is connected to the gate of the switch tube Q9, the source of the switch tube Q9 is grounded, the drain of the switch tube Q9 is connected to the power supply through the resistor R13, the drain of the switch tube Q9 is grounded through the capacitor C1, and the drain of the switch tube Q9 is connected to the antenna L1.
[0032] As shown in Figure 4 , the radio frequency receiving circuit comprises an antenna L2, a resistor R15, a diode D9, a capacitor C4, an operational amplifier U7, a resistor R17, a capacitor C4, a capacitor C3 and a resistor R16, the antenna L2 is connected to the anode of the diode D9 through the resistor R15, the cathode of the diode D9 is connected to the non-inverting input end of the operational amplifier U7 through the capacitor C4, the inverting input end of the operational amplifier U7 is connected to the output end of the operational amplifier U7 through the resistor R17, the capacitor C4 is connected in parallel to the resistor R17, and the output end of the operational amplifier U7 is connected to the main control module in sequence through the capacitor C3 and the resistor R16.
[0033] In the embodiment, after the main control module verifies that the password is correct, the antenna L1 is driven by the radio frequency transmitting circuit to send a carrier signal, the IC card couples to generate electric energy after receiving the carrier signal, and the card number information is transmitted to the radio frequency receiving circuit through the antenna L2, is processed by the capacitor C2 filtering and the operational amplifier U7 amplification, and is sent to the main control module to extract data information. The parallel connection of the capacitor C6 and the resistor R20 and the capacitor C7 and the resistor R21 plays a role of resistance-capacitance filtering.
[0034] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An intelligent door control security system, characterized in that, The application relates to a motor lock control system, which comprises a main control module, a power supply module, a motor lock driving module, a key module, an IC card recognition module and a logic module, wherein the power supply module supplies power for the whole system, the key module is connected with the main control module and is used for controlling the main control module to output an unlocking signal and a locking signal, the IC card recognition module is connected with the main control module and is used for controlling the main control module to output a verification signal, the input end of the logic module is connected with the main control module, and the output of the logic module is connected with the motor lock driving module. The logic module comprises an AND gate U1, an optical coupler U2 and an optical coupler U3, the first input end of the AND gate U1 receives an unlocking signal output by the main control module, the second input end of the AND gate U1 receives a verification signal output by the main control module, the output end of the AND gate U1 is connected with the input end of the optical coupler U2 through a resistor R3, the output end of the optical coupler U2 is connected with the motor lock driving module, the input end of the optical coupler U3 receives a locking signal output by the main control module through a resistor R4, and the output end of the optical coupler U3 is connected with the motor lock driving module.
2. The intelligent door control security system of claim 1, wherein, The motor lock driving module comprises switch tubes Q3, Q4, Q5 and Q6 which are connected in the form of an H bridge, the switch tubes Q3 and Q6 are used as upper bridge arms of the H bridge, the switch tubes Q4 and Q5 are used as lower bridge arms of the H bridge, the H bridge is used for driving a motor, the gate of the switch tube Q3 is connected with the output end of the optical coupler U2 through a first driving branch, the gate of the switch tube Q5 is connected with the output end of the optical coupler U2 through a second driving branch, the gate of the switch tube Q4 is connected with the output end of the optical coupler U3 through a third driving branch, and the gate of the switch tube Q6 is connected with the output end of the optical coupler U3 through a fourth driving branch.
3. The intelligent door control security system of claim 2, wherein, The first driving branch, the second driving branch, the third driving branch and the fourth driving branch have the same connection structure, the first driving branch comprises a triode Q2, a diode D1, a resistor R2 and a resistor R6, the base of the triode Q2 is connected with the output end of the optical coupler U2, the base of the triode Q2 is connected with a power supply through the resistor R2, the collector of the triode Q2 is connected with the power supply through the resistor R6, the emitter of the triode Q2 is connected with the gate of the switch tube Q3, the anode of the diode D1 is connected with the emitter of the triode Q2, and the cathode of the diode D1 is connected with the base of the triode Q2.
4. The intelligent door control security system of claim 1, wherein, The IC card recognition module comprises a radio frequency transmitting circuit and a radio frequency receiving circuit, the input end of the radio frequency transmitting circuit and the output end of the radio frequency receiving circuit are both connected with the main control module.
5. The intelligent door control security system of claim 4, wherein, The radio frequency transmitting circuit includes resistance R14, triode Q10, triode Q11, switch tube Q9, resistance R13, capacitor C1 and antenna L1, the first end of the resistance R14 is connected with the master control module, the second end of the resistance R14 is connected with the base of the triode Q10, the collector of the triode Q10 is connected with the power supply, the emitter of the triode Q10 is connected with the collector of the triode Q11, the base of the triode Q11 is connected with the second end of the resistance R14, the emitter of the triode Q11 is grounded, the collector of the triode Q11 is connected with the gate of the switch tube Q9, the source of the switch tube Q9 is grounded, the drain of the switch tube Q9 is connected with the power supply through the resistance R13, the drain of the switch tube Q9 is grounded through the capacitor C1, and the drain of the switch tube Q9 is connected with the antenna L1.
6. The intelligent door control security system of claim 4, wherein, The radio frequency receiving circuit includes antenna L2, resistance R15, diode D9, capacitor C4, operational amplifier U7, resistance R17, capacitor C4, capacitor C3 and resistance R16, the antenna L2 is connected with the anode of the diode D9 through the resistance R15, the cathode of the diode D9 is connected with the non-inverting input terminal of the operational amplifier U7 through the capacitor C4, the inverting input terminal of the operational amplifier U7 is connected with the output terminal of the operational amplifier U7 through the resistance R17, the capacitor C4 is connected in parallel with the resistance R17, and the output terminal of the operational amplifier U7 is connected with the master control module in sequence through the capacitor C3 and the resistance R16.