CN220367320U - Intelligent lock speed sensor monitoring device - Google Patents
Intelligent lock speed sensor monitoring device Download PDFInfo
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- CN220367320U CN220367320U CN202321135370.7U CN202321135370U CN220367320U CN 220367320 U CN220367320 U CN 220367320U CN 202321135370 U CN202321135370 U CN 202321135370U CN 220367320 U CN220367320 U CN 220367320U
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Abstract
The utility model discloses an intelligent lock speed sensor monitoring device, which relates to the technical field of electronics and solves the possible faults of a speed sensor caused by an electronic switch, and comprises the following components: the device comprises a switching circuit, a speed sensor module, a power supply and a power supply voltage monitoring module; the speed sensor module is arranged at the wheel to acquire the speed of the wheel; the input end of the switching circuit is connected with a power supply, the output end of the switching circuit is connected with the speed sensor module, and the power supply supplies power to the speed sensor module through the switching circuit; the output end of the switching circuit is connected with a power supply voltage monitoring module, and the power supply voltage monitoring module obtains the output voltage of the switching circuit and judges whether the output voltage is normal or not. The speed sensor module is powered through the switching circuit, and whether the output voltage of the switching circuit is normal is detected through the power supply voltage monitoring module, so that normal power supply work is ensured to be carried out for the speed sensor module, and faults are avoided.
Description
Technical Field
The utility model relates to the technical field of electronics, in particular to an intelligent lock speed sensor monitoring device.
Background
Today, a shared bicycle is usually remotely controlled to perform a locking operation, and in order to avoid that the vehicle is locked by mistake during operation, whether the vehicle is operated or not is often monitored by a speed sensor arranged at a wheel.
The electronic switch is used for supplying power to the speed sensor to realize speed monitoring, but the electronic switch is possibly damaged due to frequent power on and power off of the electronic switch, so that normal power supply cannot be performed for the speed sensor, and a fault exists in a speed monitoring result.
It can be seen that how to solve the possible faults of the speed sensor caused by the electronic switch is a technical problem to be solved by the person skilled in the art.
Disclosure of Invention
The utility model aims to provide an intelligent lock speed sensor monitoring device which solves the problem that a speed sensor possibly has faults due to an electronic switch.
In order to solve the technical problems, the present utility model provides an intelligent lock speed sensor monitoring device, comprising:
the device comprises a switching circuit, a speed sensor module, a power supply and a power supply voltage monitoring module;
the speed sensor module is arranged at the wheel to acquire the speed of the wheel;
the input end of the switching circuit is connected with a power supply, the output end of the switching circuit is connected with the speed sensor module, and the power supply supplies power to the speed sensor module through the switching circuit;
the output end of the switching circuit is connected with a power supply voltage monitoring module, and the power supply voltage monitoring module obtains the output voltage of the switching circuit and judges whether the output voltage is normal or not.
In an embodiment, in the intelligent lock speed sensor monitoring device, the speed sensor module is a hall sensor monitoring circuit.
In one embodiment, in the intelligent lock speed sensor monitoring device, the hall sensor monitoring circuit includes: the first Hall sensor, the first capacitor, the second capacitor and the first resistor;
the output end of the switch circuit is connected with the first end of the first resistor, the power end of the first Hall sensor and the first end of the first capacitor, the second end of the first resistor is connected with the first end of the second capacitor, the second end of the second capacitor is grounded, and the second end of the first capacitor is grounded.
In one embodiment, in the intelligent lock speed sensor monitoring device, the switch circuit includes: the second resistor, the third resistor, the fourth resistor, the triode and the PMOS tube;
the power supply is connected with the first end of the second resistor and the drain electrode of the PMOS tube, the second end of the second resistor is connected with the grid electrode of the PMOS tube and the collector electrode of the triode, the source electrode of the PMOS tube is used as the output end of the switching circuit, the control enabling end is connected with the first end of the third resistor, the second end of the third resistor is connected with the first end of the fourth resistor and the base electrode of the triode, and the second end of the fourth resistor is grounded with the emitter electrode of the triode.
In one embodiment, in the intelligent lock speed sensor monitoring device, the number of the hall sensor monitoring circuits is 2.
In one embodiment, the intelligent lock speed sensor monitoring device further includes: a speed analysis module;
the speed analysis module is connected with the speed sensor module.
In one embodiment, in the smart lock speed sensor monitoring device, the power supply voltage monitoring module includes: an analog-to-digital converter, processor;
the input end of the analog-digital converter is connected with the output end of the switching circuit, and the output end of the analog-digital converter is connected with the processor.
In one embodiment, the intelligent lock speed sensor monitoring device further includes: an alarm;
the alarm is connected with the speed analysis module, and alarms when the speed exceeds a preset value.
In one embodiment, the intelligent lock speed sensor monitoring device further includes: a display device;
the display device is connected with the speed analysis module and displays the real-time speed value.
In one embodiment, the intelligent lock speed sensor monitoring device further includes: a fault warning lamp;
the fault warning lamp is connected with the speed analysis module, and gives a warning when the Hall sensor fails.
The utility model provides an intelligent lock speed sensor monitoring device, which comprises: the device comprises a switching circuit, a speed sensor module, a power supply and a power supply voltage monitoring module; the speed sensor module is arranged at the wheel to acquire the speed of the wheel; the input end of the switching circuit is connected with a power supply, the output end of the switching circuit is connected with the speed sensor module, and the power supply supplies power to the speed sensor module through the switching circuit; the output end of the switching circuit is connected with a power supply voltage monitoring module, and the power supply voltage monitoring module obtains the output voltage of the switching circuit and judges whether the output voltage is normal or not. The speed sensor module is powered through the switching circuit, and whether the output voltage of the switching circuit is normal is detected through the power supply voltage monitoring module, so that normal power supply work is ensured to be carried out for the speed sensor module, and faults are avoided.
Drawings
For a clearer description of embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic diagram of an intelligent lock speed sensor monitoring device according to an embodiment of the present application;
fig. 2 is a circuit diagram of an intelligent lock speed sensor monitoring device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.
The utility model aims at providing an intelligent lock speed sensor monitoring device.
In order to better understand the aspects of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.
A bicycle sharing system is established in many cities, a large number of public bicycles are provided for citizens, and great convenience is brought to the life of people. The shared bicycle is usually locked in a remote control manner, and in order to avoid the vehicle from being locked by mistake during running, whether the bicycle is running or not is often monitored by a speed sensor arranged at a wheel.
The electronic switch is used for supplying power to the speed sensor to realize speed monitoring, but the electronic switch is possibly damaged due to frequent power on and power off of the electronic switch, so that normal power supply cannot be performed for the speed sensor, and a fault exists in a speed monitoring result.
In order to solve the above problem, the present application provides an intelligent lock speed sensor monitoring device, including:
a switch circuit 11, a speed sensor module 12, a power supply 13 and a power supply voltage monitoring module 14;
the speed sensor module 12 is arranged at the wheel and acquires the speed of the wheel;
the input end of the switch circuit 11 is connected with the power supply 13, the output end of the switch circuit 11 is connected with the speed sensor module 12, and the power supply 13 supplies power to the speed sensor module 12 through the switch circuit 11;
the output end of the switch circuit 11 is connected with a power supply voltage monitoring module 14, and the power supply voltage monitoring module 14 obtains the output voltage of the switch circuit 11 and judges whether the output voltage is normal or not.
The switch circuit 11 provided in this embodiment is used to realize whether to supply power to the speed sensor module 12, the specific structure and control mode of the switch circuit 11 are not limited in this embodiment, and the switch circuit 11 is set according to actual needs, and when the switch circuit 11 is turned on, the speed sensor module 12 starts to work.
The speed sensor module 12 is disposed at the wheel, and obtains the speed of the wheel, and the speed value can be used to determine whether the locking action can be performed.
The power supply voltage monitoring module 14 according to the present embodiment obtains the output voltage of the output end of the switch circuit 11, and determines whether the current switch circuit 11 is working normally by obtaining the output voltage value, so as to be able to supply power to the speed sensor module 12. The specific structure and control manner of the power supply voltage monitoring module 14 are not limited in this embodiment, and may be set according to actual needs.
The utility model provides an intelligent lock speed sensor monitoring device, which comprises: a switch circuit 11, a speed sensor module 12, a power supply 13 and a power supply voltage monitoring module 14; the speed sensor module 12 is arranged at the wheel and acquires the speed of the wheel; the input end of the switch circuit 11 is connected with the power supply 13, the output end of the switch circuit 11 is connected with the speed sensor module 12, and the power supply 13 supplies power to the speed sensor module 12 through the switch circuit 11; the output end of the switch circuit 11 is connected with a power supply voltage monitoring module 14, and the power supply voltage monitoring module 14 obtains the output voltage of the switch circuit 11 and judges whether the output voltage is normal or not. The speed sensor module 12 is powered through the switch circuit 11, and whether the output voltage of the switch circuit 11 is normal or not is detected through the power supply voltage monitoring module 14, so that normal power supply work is ensured to be carried out for the speed sensor module 12, and faults are avoided.
According to the above embodiment, the present embodiment provides a preferable solution, the speed sensor monitoring device of the smart lock, and the speed sensor module 12 is a hall sensor monitoring circuit.
The Hall sensor is a magnetic field sensor manufactured according to the Hall effect and is widely applied to the aspects of industrial automation technology, detection technology, information processing and the like. Hall sensors are based on the hall effect, and are made of semiconductor materials called hall elements. The sensor has the advantages of sensitivity to magnetic fields, simple structure, small volume, wide frequency response, large output voltage change, long service life and the like, and is widely applied to the fields of measurement, automation, computer, information technology and the like. The Hall speed measurement experimental principle is that the Hall component is a magneto-electric conversion component and is used for detecting a magnetic field and converting a magnetic signal into voltage. When the Hall component is placed in an external magnetic field and current passes through the Hall component along the direction perpendicular to magnetic force lines, carriers in the Hall component are pushed to one side under the action of Lorentz force, and current is formed after accumulation.
According to the above embodiment, the present embodiment provides a preferred solution of a hall sensor monitoring circuit, and an intelligent lock speed sensor monitoring device, as shown in fig. 2, the hall sensor monitoring circuit includes: the first Hall sensor U1/U2, the first capacitor C1/C11, the second capacitor C2/C21 and the first resistor R1/R11;
the output end of the switch circuit 11 is connected with the first end of the first resistor R1/R11, the power end of the first Hall sensor U1/U2 and the first end of the first capacitor C1/C11, the second end of the first resistor R1/R11 is connected with the first end of the second capacitor C2/C21, the second end of the second capacitor C2/C21 is grounded, and the second end of the first capacitor C1/C11 is grounded.
Preferably, the number of hall sensor monitoring circuits is 2. In fig. 2, R1 and R11 are used as first resistors, C1 and C11 are used as first capacitors, C2 and C21 are used as second capacitors, and U1 and U2 are used as first hall sensors of two hall sensor monitoring circuits respectively; the controller can judge whether the wheels rotate or not through whether the signals are output by the Hall sensor 1 (SINGLE_RATE_1) and the Hall sensor 2 (SINGLE_RATE_2). When the set time t is reached, the Hall sensor signal is detected, the wheel is rotated, and locking is forbidden. The controller calculates the wheel speed from the signals of hall sensor output 1 (sine_rate_1) and hall sensor output 2 (sine_rate_2). When a user sends a locking signal, the speed of the vehicle during locking can be synchronously calculated so as to monitor the working condition of the vehicle lock. The two Hall sensors are mutually backed up, and when one of the Hall sensors is damaged, if the other Hall sensor has a signal, the fault of the Hall sensor can be quickly judged.
According to the above embodiment, the present embodiment provides a preferable mode, the intelligent lock speed sensor monitoring device, the switch circuit 11 includes: the second resistor R2, the third resistor R3, the fourth resistor R3, the triode Q2 and the PMOS tube Q1;
the power supply is connected with the first end of the second resistor R2 and the drain electrode of the PMOS tube Q1, the second end of the second resistor R2 is connected with the grid electrode of the PMOS tube Q1 and the collector electrode of the triode Q2, the source electrode of the PMOS tube Q1 is used as the output end of the switch circuit 11, the control enabling end is connected with the first end of the third resistor R3, the second end of the third resistor R3 is connected with the first end of the fourth resistor R3 and the base electrode of the triode Q2, and the second end of the fourth resistor R3 is grounded with the emitter electrode of the triode Q2.
The (positive channel Metal Oxide Semiconductor, PMOS) transistor refers to an n-type substrate, a p-channel, and a Metal-Oxide-Semiconductor Field-Effect Transistor (MOS) transistor that carries a current by the flow of holes.
The PMOS transistor Q1 and the transistor Q2 constitute an electronic switching circuit 11. Control enable (en_hall_3.3v) powers the HALL sensors U1, U2. At this time, the hall operates normally, and if the wheel rotates, a speed signal can be output through the hall sensor output 1 (sine_rate_1) and the hall sensor output 2 (sine_rate_2).
(ADC_HALL_3.3V) by monitoring this voltage signal ensures that the Hall sensor is powered properly.
According to the above embodiment, this embodiment provides a preferred solution, the intelligent lock speed sensor monitoring device, further includes: a speed analysis module;
the speed analysis module is connected to the speed sensor module 12.
The hall sensor output 1 (sine_rate_1) and the hall sensor output 2 (sine_rate_2) are connected to a speed analysis module, and specifically analyze the current speed signal.
According to the above embodiment, the present embodiment provides a preferable solution, the intelligent lock speed sensor monitoring device, the power supply voltage monitoring module 14 includes: an analog-to-digital converter, processor;
the input end of the analog-digital converter is connected with the output end of the switch circuit 11, and the output end of the analog-digital converter is connected with the processor.
An analog-to-digital converter, or a/D converter, for short, an ADC, generally refers to an electronic component that converts an analog signal into a digital signal. A typical analog-to-digital converter converts an input voltage signal into an output digital signal.
According to the above embodiment, this embodiment provides a preferred solution, the intelligent lock speed sensor monitoring device, further includes: an alarm;
the alarm is connected with the speed analysis module, and alarms when the speed exceeds a preset value. The display of the alarm is not limited in the embodiment, and the alarm can be a buzzer, a warning lamp and the like, and the alarm can be set according to actual needs.
For the safety of the user, the alarm alarms when the speed exceeds a preset value.
According to the above embodiment, this embodiment provides a preferred solution, the intelligent lock speed sensor monitoring device, further includes: a display device;
the display device is connected with the speed analysis module and displays the real-time speed value. The display of the alarm is not limited in the embodiment, and the alarm can be a nixie tube, a light-emitting diode display screen and the like, and the alarm can be set according to actual needs.
By displaying the speed value in real time, the user can know the current running state more timely.
According to the above embodiment, this embodiment provides a preferred solution, the intelligent lock speed sensor monitoring device, further includes: a fault warning lamp;
the fault warning lamp is connected with the speed analysis module, and gives a warning when the Hall sensor fails.
When one of the Hall sensors is damaged, if the other Hall sensor has a signal, the Hall fault can be quickly judged, and when the Hall sensor is faulty, the fault warning lamp is controlled to display the current fault condition.
The intelligent lock speed sensor monitoring device provided by the utility model is described in detail above. In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. An intelligent lock speed sensor monitoring device, characterized by comprising:
the speed sensor comprises a switch circuit (11), a speed sensor module (12), a power supply (13) and a power supply voltage monitoring module (14);
the speed sensor module (12) is arranged at a wheel and used for acquiring the speed of the wheel;
the input end of the switching circuit (11) is connected with the power supply (13), the output end of the switching circuit (11) is connected with the speed sensor module (12), and the power supply (13) supplies power for the speed sensor module (12) through the switching circuit (11);
the output end of the switch circuit (11) is connected with the power supply voltage monitoring module (14), and the power supply voltage monitoring module (14) acquires the output voltage of the switch circuit (11) and judges whether the output voltage is normal or not.
2. The smart lock speed sensor monitoring device of claim 1, wherein the speed sensor module (12) is a hall sensor monitoring circuit.
3. The smart lock speed sensor monitoring device of claim 2, wherein the hall sensor monitoring circuit comprises: the first Hall sensor, the first capacitor, the second capacitor and the first resistor;
the output end of the switch circuit (11) is connected with the first end of the first resistor, the power end of the first Hall sensor and the first end of the first capacitor, the second end of the first resistor is connected with the first end of the second capacitor, the second end of the second capacitor is grounded, and the second end of the first capacitor is grounded.
4. A smart lock speed sensor monitoring device according to claim 3, characterized in that the switching circuit (11) comprises: the second resistor, the third resistor, the fourth resistor, the triode and the PMOS tube;
the power supply (13) is connected with the first end of the second resistor and the drain electrode of the PMOS tube, the second end of the second resistor is connected with the grid electrode of the PMOS tube and the collector electrode of the triode, the source electrode of the PMOS tube is used as the output end of the switch circuit (11), the control enabling end is connected with the first end of the third resistor, the second end of the third resistor is connected with the first end of the fourth resistor and the base electrode of the triode, and the second end of the fourth resistor is grounded with the emitter electrode of the triode.
5. The smart lock speed sensor monitoring device of claim 3 wherein the number of hall sensor monitoring circuits is 2.
6. The smart lock speed sensor monitoring device of claim 3 further comprising: a speed analysis module;
the speed analysis module is connected to the speed sensor module (12).
7. The smart lock speed sensor monitoring device of any one of claims 1-6 wherein the supply voltage monitoring module (14) comprises: an analog-to-digital converter, processor;
the input end of the analog-digital converter is connected with the output end of the switch circuit (11), and the output end of the analog-digital converter is connected with the processor.
8. The smart lock speed sensor monitoring device of claim 6, further comprising: an alarm;
the alarm is connected with the speed analysis module, and alarms when the speed exceeds a preset value.
9. The smart lock speed sensor monitoring device of claim 6, further comprising: a display device;
the display device is connected with the speed analysis module and displays real-time speed values.
10. The smart lock speed sensor monitoring device of claim 6, further comprising: a fault warning lamp;
the fault warning lamp is connected with the speed analysis module, and gives a warning when the Hall sensor fails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321135370.7U CN220367320U (en) | 2023-05-11 | 2023-05-11 | Intelligent lock speed sensor monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321135370.7U CN220367320U (en) | 2023-05-11 | 2023-05-11 | Intelligent lock speed sensor monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN220367320U true CN220367320U (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321135370.7U Active CN220367320U (en) | 2023-05-11 | 2023-05-11 | Intelligent lock speed sensor monitoring device |
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| CN (1) | CN220367320U (en) |
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- 2023-05-11 CN CN202321135370.7U patent/CN220367320U/en active Active
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