CN209761068U - Intelligent door lock remote early warning system - Google Patents
Intelligent door lock remote early warning system Download PDFInfo
- Publication number
- CN209761068U CN209761068U CN201920143125.8U CN201920143125U CN209761068U CN 209761068 U CN209761068 U CN 209761068U CN 201920143125 U CN201920143125 U CN 201920143125U CN 209761068 U CN209761068 U CN 209761068U
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Abstract
the utility model discloses an intelligent door lock remote early warning system, which comprises a power sampling circuit, a shunt control circuit and a wireless transmitting circuit, wherein the output end of the power sampling circuit is connected with the input end of the shunt control circuit, the output end of the shunt control circuit is connected with the input end of the wireless transmitting circuit, a power sensor P1 in the power sampling circuit can monitor the working power of the intelligent door lock system in real time, when the internal circuit of the intelligent door lock system suffers high-power electromagnetic interference, the power sensor P1 can detect the high-power signal, thereby outputting an abnormal high-voltage current signal, the utility model can timely finish detection and send an early warning signal to a user by using a wireless remote when the intelligent door lock system suffers from illegal equipment to utilize the high-strength wireless electromagnetic interference, thereby reminding the user to process, the device has simple structure, is convenient to install, and has high accuracy of detection results, has good practical value and development value.
Description
Technical Field
The utility model relates to an intelligence lock technical field especially relates to an intelligence lock remote early warning system.
Background
The intelligent door lock is unlocked by means of electronic commands formed by means of fingerprints, passwords, APP, WeChat code scanning and the like, mainly identifies the electronic commands through an internal controller, and then outputs control signals to drive an internal motor of the door lock to rotate so as to control unlocking. A plurality of illegal devices in the market utilize high-strength wireless interference intelligent locks, and high-power electromagnetic interference generated by the devices can cause output abnormity of controllers in the locks, so that the driving motor achieves the aim of illegal unlocking and brings great potential safety hazards to the intelligent locks.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming the defect of prior art, the utility model aims to provide an intelligence lock remote early warning system.
The technical scheme for solving the problem is that the intelligent door lock remote early warning system comprises a power sampling circuit, a shunt control circuit and a wireless transmitting circuit, wherein the output end of the power sampling circuit is connected with the input end of the shunt control circuit, and the output end of the shunt control circuit is connected with the input end of the wireless transmitting circuit; the power sampling circuit comprises a power sensor P1, wherein the output end of the power sensor P1 is connected with one ends of a resistor R2 and a capacitor C1 through a resistor R1, the other end of the resistor R2 is connected with the non-inverting input end of an operational amplifier U1 and is grounded through a capacitor C2, the inverting input end of the operational amplifier U1 is connected with one ends of a resistor R4 and a capacitor C3 through a resistor R3, and the output end of the operational amplifier U1 is connected with the other ends of a resistor R4, a capacitor C1 and a capacitor C3.
Further, the shunt control circuit comprises operational amplifiers U2 and U3, an inverting input end of an operational amplifier U2 is connected to an output end of an operational amplifier U1, an output end of the operational amplifier U2 is connected to one ends of resistors R5, R6 and R8 and a non-inverting input end of an operational amplifier U3, the other end of the resistor R5 is grounded, an inverting input end of the operational amplifier U3 is connected to an output end of an operational amplifier U3 through a capacitor C4 and is connected to an inverting input end of an operational amplifier U2, the other end of the resistor R6 is connected to a gate of a MOS transistor Q1 and is grounded through a zener diode DZ1, a drain of the MOS transistor Q1 is connected to one ends of a resistor R7 and a capacitor C5 and a non-inverting input end of the operational amplifier U2, a resistor R7 and a capacitor C5 are grounded in parallel to a source of the MOS transistor Q1, and the.
Further, the wireless transmitting circuit comprises an inductor L1, one end of the inductor L1 is connected with the other end of the resistor R8, the other end of the inductor L1 is connected with one end of the capacitor C6 and one end of the resistor R9, and a control electrode of the triac T1, the other ends of the capacitor C6 and the resistor R9 are grounded in parallel, one main electrode of the triac T1 is connected with a +12V power supply through the resistor R10, and the other main electrode of the triac is connected with the signal transmitter E1.
Furthermore, the power sensor P1 is selected to be NRP-Z11.
Through the technical scheme, the beneficial effects of the utility model are that:
1. The utility model discloses can in time accomplish and detect and utilize wireless long-range to send early warning signal to the user when intelligent lock system suffers illegal equipment to utilize high strength wireless electromagnetic interference, remind the user to handle, the device simple structure, the installation of being convenient for, the testing result accuracy is high, has fine practical value and development value;
2. In the power sampling circuit, the power frequency clutter in the circuit is eliminated by utilizing the principle of a second-order amplification filter circuit, so that the accuracy of sampling the working power of the intelligent door lock system is improved;
3. The output signal of the operational amplifier U2 is shunted by the resistors R6 and R8, most of the current flows to the resistor R6, and the MOS transistor Q1 is conducted after the voltage is stabilized by the voltage stabilizing diode DZ1, so that most of the current is discharged to the ground, and the wireless transmitting circuit is effectively prevented from being damaged by large-voltage signals.
Drawings
Fig. 1 is a block diagram of the system of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings 1 to 2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The utility model provides a long-range early warning system of intelligence lock, includes power sampling circuit, reposition of redundant personnel control circuit and wireless transmitting circuit, and the input of reposition of redundant personnel control circuit is connected to power sampling circuit's output, and wireless transmitting circuit's input is connected to reposition of redundant personnel control circuit's output.
The power sampling circuit comprises a power sensor P1, the power sensor P1 is used for detecting the power of the intelligent door lock system during working, the power sensor P1 is NRP-Z11, the power supply end of the power sensor is connected with a +5V power supply, and the grounding end of the power sensor is grounded. In the actual use process, the power sampling can be interfered by power frequency noise in the circuit, so that the accuracy of power detection is influenced, and therefore, the output signal of the power sensor P1 is firstly sent into a second-order amplification filter circuit formed by resistors R1 and R2, capacitors C1 and C2 and an operational amplifier U1 to eliminate the noise, and the accuracy of sampling the working power of the intelligent door lock system is improved. The output end of the power sensor P1 is connected with one end of a resistor R2 and one end of a capacitor C1 through a resistor R1, the other end of the resistor R2 is connected with the non-inverting input end of an operational amplifier U1 and is grounded through a capacitor C2, the inverting input end of the operational amplifier U1 is connected with one end of a resistor R4 and one end of a capacitor C3 through a resistor R3, the output end of the operational amplifier U1 is connected with the other end of a resistor R4, the other end of the capacitor C1 and the other end of the capacitor C3, and the resistor R4 and the capacitor C3 play a role in feedback compensation in the amplification process of the operational amplifier U1, so that the stability of.
The output signal of the operational amplifier U1 is sent to the operational amplifier U2 for further amplification, the output signal of the operational amplifier U2 is output in two paths, one path is sent to the grid of the MOS transistor Q1 through the resistor R6, and the other path is sent to the wireless transmitting circuit through the resistor R8. The shunt control circuit comprises operational amplifiers U2 and U3, an inverting input end of an operational amplifier U2 is connected with an output end of an operational amplifier U1, an output end of the operational amplifier U2 is connected with one ends of resistors R5, R6 and R8 and a non-inverting input end of an operational amplifier U3, the other end of the resistor R5 is grounded, an inverting input end of an operational amplifier U3 is connected with an output end of an operational amplifier U3 through a capacitor C4 and is connected with an inverting input end of an operational amplifier U2, the other end of the resistor R6 is connected with a grid electrode of a MOS tube Q1 and is grounded through a voltage stabilizing diode DZ1, a drain electrode of the MOS tube Q1 is connected with one end of a resistor R7 and a capacitor C5 and a non-inverting input end of the operational amplifier U2, the sources of the resistors R7 and the capacitor C5 and the MOS tube Q1 are. In order to avoid the phenomenon of signal imbalance of the operational amplifier U2 in the amplification process, the operational amplifier U3 is adopted to perform feedback regulation on the output signal of the operational amplifier U2, and the output waveform of the operational amplifier U2 is effectively improved.
The wireless transmitting circuit comprises an inductor L1, one end of the inductor L1 is connected with the other end of a resistor R8, the other end of the inductor L1 is connected with one end of a capacitor C6 and one end of a resistor R9 and a control electrode of a bidirectional thyristor T1, the other ends of the capacitor C6 and the resistor R9 are grounded in parallel, one main electrode of the bidirectional thyristor T1 is connected with a +12V power supply through a resistor R10, and the other main electrode of the bidirectional thyristor is connected with a signal transmitter E1.
The utility model discloses when specifically using, power sensor P1 can carry out real-time supervision to the operating power of intelligent lock system, when intelligent lock system internal circuit suffered high-power electromagnetic interference, power sensor P1 can detect this high-power signal, thereby output unusual high-voltage current signal, this current signal puts ware U1 through fortune, U2 enlargies the back respectively through resistance R6, R8 shunts, because the output signal current value that the ware U2 was put to fortune is great, set up resistance R6, R8's resistance ratio is 1: 100 plus or minus 20, so that most of the current flows to the resistor R6, the MOS transistor Q1 is electrically conducted after the voltage is stabilized by the voltage stabilizing diode DZ1, most of the current is discharged to the ground, and the wireless transmitting circuit is effectively prevented from being damaged by large-voltage signals. After a small part of current signals flowing to the resistor R8 are filtered and stabilized by LC formed by the inductor L1 and the capacitor C6, the small part of current signals are used as control signals to drive the bidirectional thyristor T1 to be conducted, so that the signal transmitter E1 is powered on to work, and the signal transmitter E1 remotely transmits alarm signals to intelligent portable equipment of users, such as mobile phones, tablets and other equipment, so that the users are reminded of anti-theft early warning in time.
To sum up, the utility model discloses can in time accomplish to detect and utilize wireless long-range to send early warning signal to the user when intelligent lock system suffers illegal equipment utilization high strength wireless electromagnetic interference, remind the user to handle, device simple structure, the installation of being convenient for, the testing result accuracy is high, has fine practical value and development value.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (4)
1. The utility model provides a long-range early warning system of intelligence lock which characterized in that: the wireless transmitter comprises a power sampling circuit, a shunt control circuit and a wireless transmitting circuit, wherein the output end of the power sampling circuit is connected with the input end of the shunt control circuit, and the output end of the shunt control circuit is connected with the input end of the wireless transmitting circuit;
The power sampling circuit comprises a power sensor P1, wherein the output end of the power sensor P1 is connected with one ends of a resistor R2 and a capacitor C1 through a resistor R1, the other end of the resistor R2 is connected with the non-inverting input end of an operational amplifier U1 and is grounded through a capacitor C2, the inverting input end of the operational amplifier U1 is connected with one ends of a resistor R4 and a capacitor C3 through a resistor R3, and the output end of the operational amplifier U1 is connected with the other ends of a resistor R4, a capacitor C1 and a capacitor C3.
2. The intelligent door lock remote early warning system of claim 1, wherein: the shunt control circuit comprises operational amplifiers U2 and U3, an inverting input end of an operational amplifier U2 is connected with an output end of an operational amplifier U1, an output end of the operational amplifier U2 is connected with one ends of resistors R5, R6 and R8 and a non-inverting input end of an operational amplifier U3, the other end of the resistor R5 is grounded, an inverting input end of an operational amplifier U3 is connected with an output end of an operational amplifier U3 through a capacitor C4 and is connected with an inverting input end of an operational amplifier U2, the other end of the resistor R6 is connected with a grid electrode of a MOS tube Q1 and is grounded through a voltage stabilizing diode DZ1, a drain electrode of the MOS tube Q1 is connected with one end of a resistor R7 and a capacitor C5 and the non-inverting input end of the operational amplifier U2, the resistor R7 and a capacitor C5 are grounded in parallel with a source electrode of the MOS tube.
3. The intelligent door lock remote early warning system of claim 2, wherein: the wireless transmitting circuit comprises an inductor L1, one end of an inductor L1 is connected with the other end of a resistor R8, the other end of the inductor L1 is connected with one end of a capacitor C6 and one end of a resistor R9 and a control electrode of a bidirectional thyristor T1, the other ends of the capacitor C6 and the resistor R9 are grounded in parallel, one main electrode of the bidirectional thyristor T1 is connected with a +12V power supply through a resistor R10, and the other main electrode of the bidirectional thyristor is connected with a signal transmitter E1.
4. The intelligent door lock remote early warning system of claim 3, wherein: the power sensor P1 is NRP-Z11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920143125.8U CN209761068U (en) | 2019-01-28 | 2019-01-28 | Intelligent door lock remote early warning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920143125.8U CN209761068U (en) | 2019-01-28 | 2019-01-28 | Intelligent door lock remote early warning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209761068U true CN209761068U (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920143125.8U Expired - Fee Related CN209761068U (en) | 2019-01-28 | 2019-01-28 | Intelligent door lock remote early warning system |
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| Country | Link |
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| CN (1) | CN209761068U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110837018A (en) * | 2019-11-26 | 2020-02-25 | 北京智慧云测信息技术有限公司 | Anti-electromagnetic interference detection system of intelligent door lock |
| CN113885610A (en) * | 2021-12-06 | 2022-01-04 | 南京芯圣电子科技有限公司 | Temperature control system, method, device, equipment and readable storage medium |
-
2019
- 2019-01-28 CN CN201920143125.8U patent/CN209761068U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110837018A (en) * | 2019-11-26 | 2020-02-25 | 北京智慧云测信息技术有限公司 | Anti-electromagnetic interference detection system of intelligent door lock |
| CN113885610A (en) * | 2021-12-06 | 2022-01-04 | 南京芯圣电子科技有限公司 | Temperature control system, method, device, equipment and readable storage medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20210128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |