Intelligent anti-theft system of electric vehicle and electric two-wheeled vehicle

Abstract

The utility model discloses an electric vehicle intelligent anti-theft system and an electric two-wheeled vehicle, and relates to the technical field of vehicle anti-theft, the system comprises a human body sensing module, a Bluetooth module, an alarm switch circuit, a voice playing module and a power supply module; the human body sensing module is used for detecting the human body movement condition and sending an effective detection signal to the alarm switch circuit when detecting the human body; the Bluetooth module is used for detecting a Bluetooth signal of a user side and sending a defending signal to the alarm switch circuit when the Bluetooth module is connected to the Bluetooth of the user side, otherwise, sending a defending signal to the alarm switch circuit; the output end of the alarm switch circuit is connected with the voice playing module, and the switch circuit disconnects the output end when receiving the effective detection signal and the defence-removing signal at the same time; when the effective detection signal and the fortification signal are received, the output end is connected to trigger the voice playing module to give an alarm. According to the system, through mutual cooperation of the modules, the vehicle anti-theft efficiency is remarkably improved, and the false alarm rate is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle theftproof technical field especially an electric motor car intelligent theftproof system and electric two -wheeled vehicle. BACKGROUND

[0002] Electric two -wheeled vehicle as a kind of convenient, environmental protection traffic tool, it has been widely used in people's daily life. However, with the popularity of electric two -wheeled vehicle, its theftproof problem is increasingly highlighted. Traditional theftproof means, such as lock, alarm, etc., although it can prevent vehicle theft in a certain extent, but there are false triggering, noise and other defects. In addition, traditional theftproof mode lacks intelligent and personalized function, and user experience is poor. INVENTION CONTENTS

[0003] The present application provides an electric motor car intelligent theftproof system and electric two -wheeled vehicle.

[0004] The technical scheme of the utility model is as follows:

[0005] Firstly, the present application provides an electric motor car intelligent theftproof system, including human body perception module, bluetooth module, alarm switch circuit, voice playing module, power module;

[0006] Human body perception module is used to detect human activity, and send effective detection signal to the first input end of alarm switch circuit when detecting human body;

[0007] Bluetooth module is used to detect user end bluetooth signal, and send disarm signal to the second input end of alarm switch circuit when connecting to user end bluetooth, otherwise send arming signal to the second input end of alarm switch circuit;

[0008] The output end of alarm switch circuit is connected with voice playing module, and alarm switch circuit is disconnected when receiving effective detection signal and disarm signal simultaneously;Alarm switch circuit is connected when receiving effective detection signal and arming signal, so that voice playing module triggers alarm.

[0009] Further technical scheme is that alarm switch circuit includes first switch circuit and second switch circuit, and the output end of first switch circuit is connected with the input end of second switch circuit;

[0010] The control end of first switch circuit is used as the first input end of alarm switch circuit, and first switch circuit is used to select circuit on-off state according to corresponding detection signal sent by human body perception module;

[0011] The control end of second switch circuit is used as the second input end of alarm switch circuit, and second switch circuit is used to select circuit on-off state according to arming / disarm signal sent by bluetooth module.

[0012] The further technical scheme is that the first switch circuit comprises a first resistor, a second resistor, a third resistor, a transistor and a filter capacitor, wherein:

[0013] The first end of the first resistor is connected to the base of the transistor, the second end of the first resistor is used as the control end of the first switch circuit, the second end of the second resistor and the emitter of the transistor are grounded, the collector of the transistor is connected to the first end of the filter capacitor, the first end of the fourth resistor and the Bluetooth module through the third resistor, the second end of the filter capacitor and the second end of the fourth resistor are connected to the first voltage provided by the power module, and the second end of the fourth resistor is used as the output end of the first switch circuit.

[0014] The further technical scheme is that the second switch circuit comprises a voltage stabilizing diode and a MOS transistor, wherein:

[0015] The anode of the voltage stabilizing diode is connected to the Bluetooth module, and the cathode of the voltage stabilizing diode is connected to the power module.

[0016] The gate of the MOS transistor is used as the control end of the second switch circuit and is connected to the Bluetooth module, the source of the MOS transistor is used as the input end of the second switch circuit and is also connected to the first voltage provided by the power module, and the drain of the MOS transistor is used as the output end of the alarm switch circuit.

[0017] The further technical scheme is that the human body sensing module is realized based on a microwave induction chip.

[0018] When a human body is detected within a set induction distance, the detection signal sent by the output end of the microwave induction chip is a high-level signal, which is an effective detection signal; when a human body is not detected within the set induction distance, the detection signal sent by the output end of the microwave induction chip is a low-level signal, which is an invalid detection signal.

[0019] The further technical scheme is that the microwave induction chip detects the activity of a human body within a set induction distance by emitting a microwave signal and receiving the reflected signal.

[0020] The further technical scheme is that the power module is realized based on a first voltage reduction chip and a second voltage reduction chip.

[0021] The input end of the first voltage reduction chip is connected to the power supply provided by the whole vehicle DC / DC module, the output end of the first voltage reduction chip is connected to the input end of the second voltage reduction chip, the first voltage reduction chip is used to generate the first voltage to supply power to the human body sensing module, and the second voltage reduction chip is used to generate the second voltage to supply power to the Bluetooth module, the alarm switch circuit and the voice playing module.

[0022] The further technical solution is that the voice playback module is based on a voice chip, which provides at least one anti-theft reminder voice and plays the pre-set specified voice when the alarm is triggered.

[0023] A further technical solution is that the system also includes a user-end APP connected via Bluetooth module, used to set the anti-theft reminder voice of the voice playback module, and to set the sensing distance of the human body sensing module.

[0024] Secondly, this application also provides an electric two-wheeled vehicle, including an electric two-wheeled vehicle body and an intelligent anti-theft system for electric vehicles as described in the first aspect, the system being installed on the body.

[0025] The beneficial technical effects of this utility model are:

[0026] This system uses a human body detection module to detect if anyone is approaching the vehicle within a set sensing distance. A Bluetooth module enables automatic arming / disarming of the vehicle. The output signals from both modules control the alarm switch circuit and the voice playback module. When the Bluetooth module recognizes the vehicle owner approaching, it automatically enters disarm mode, effectively reducing false alarms and unnecessary interference. In armed mode, the voice playback module triggers the alarm mechanism when someone approaches the vehicle. Therefore, the integrated application of the human body detection module and Bluetooth module significantly improves vehicle anti-theft efficiency. The anti-theft alert voice generated by the voice playback module is lower in decibels than traditional anti-theft devices, reducing noise pollution. This system, in conjunction with a user-end app, allows vehicle owners to customize the anti-theft alert voice and distance, increasing the fun and practicality of the anti-theft system and enhancing the user experience. Attached Figure Description

[0027] Figure 1 This is a block diagram of the intelligent anti-theft system for electric vehicles provided in this application.

[0028] Figure 2 This is a flowchart of the intelligent anti-theft system for electric vehicles provided in this application.

[0029] Figure 3 This is a schematic diagram of the alarm switch circuit provided in this application.

[0030] Figure 4 This is a schematic diagram of the Bluetooth module provided in this application.

[0031] Figure 5 This is a schematic diagram of the microwave induction chip provided in this application.

[0032] Figure 6 This is a schematic diagram of the voice playback module provided in this application.

[0033] Figure 7is a circuit schematic diagram of the power module provided by the present application.

[0034] Figure 8 is a user terminal APP operation interface schematic diagram provided by the present application. DETAILED DESCRIPTION

[0035] The specific embodiments of the utility model will be further described below in combination with the drawings.

[0036] As Figure 1 shown, an embodiment of the present application provides an intelligent anti-theft system for an electric vehicle, comprising a power module, a human body sensing module, a Bluetooth module, an alarm switch circuit and a voice playing module. The power module provides stable power support for the entire system. The human body sensing module is used for detecting human body activity and outputting a corresponding detection signal to a first input end of the alarm switch circuit. The Bluetooth module is used for detecting a user terminal Bluetooth signal. After the vehicle terminal Bluetooth and the user terminal Bluetooth are successfully paired, the Bluetooth module will be wirelessly connected with the user terminal Bluetooth when the vehicle owner approaches the vehicle. At this time, the Bluetooth module sends an unarming signal to a second input end of the alarm switch circuit. When the vehicle owner gradually moves away from the vehicle, the Bluetooth module is disconnected from the user terminal Bluetooth. At this time, the Bluetooth module sends an arming signal to the second input end of the alarm switch circuit, thereby realizing the automatic arming / disarming function of the system. The output end of the alarm switch circuit is connected with the voice playing module. The alarm switch circuit will select to connect or cut off the connection with the voice playing module according to the corresponding detection signal and the arming / disarming signal.

[0037] The working process of the entire system is shown in Figure 2 . The human body sensing module is used for detecting whether there is a human body approaching the electric vehicle within a sensing distance range and outputting a corresponding detection signal. When a person enters the sensing distance range and is the vehicle owner, the Bluetooth module will be automatically connected with the user terminal Bluetooth and provide an unarming signal. When the alarm switch circuit simultaneously receives the valid detection signal and the unarming signal, the output end is disconnected. At this time, the voice playing module will not trigger the alarm mechanism, thereby avoiding the occurrence of false alarm. When the vehicle owner leaves the sensing distance range of the vehicle and exceeds the Bluetooth signal connection distance, the Bluetooth module will be automatically disconnected from the user terminal Bluetooth and provide an arming signal. In the system arming state, if a person enters the sensing distance range of the human body sensing module, the alarm switch circuit will receive the valid detection signal and connect the output end to make the voice playing module trigger the alarm. The specified reminder voice is emitted through the loudspeaker to drive away the approaching pedestrians.

[0038] The alarm switch circuit comprises a first switch circuit and a second switch circuit connected in series. The control end of the first switch circuit is the first input end of the alarm switch circuit, and the first switch circuit is used for selecting the on-off state of the circuit according to the corresponding detection signal sent by the human body sensing module. Specifically, the human body sensing module sends a valid detection signal when detecting a human body within a set sensing distance, and sends an invalid detection signal otherwise; the first switch circuit is in the on state when receiving the valid detection signal, and is in the off state when receiving the invalid detection signal. The control end of the second switch circuit is the second input end of the alarm switch circuit, and the second switch circuit is used for selecting the on-off state of the circuit according to the arming / disarming signal sent by the Bluetooth module. Specifically, the second switch circuit is in the on state when receiving the arming signal, and is in the off state when receiving the disarming signal.

[0039] In the embodiment, the first switch circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a transistor Q1 and a filter capacitor C1, and the connection relationship is as shown in Figure 3 The base of the transistor Q1 is connected to the first ends of the R1 and R2, the second end of the R1 is connected to the corresponding detection signal as the control end of the first switch circuit, and the second end of the R2 and the emitter of the Q1 are grounded. The collector of the Q1 is connected to the first end of the C1, the first end of the R4 and the Bluetooth module through the R3, the second end of the C1 and the second end of the R4 are connected to the first voltage provided by the power module, and the second end of the R4 is connected to the input end of the second switch circuit as the output end of the first switch circuit. The circuit is turned on under the action of the valid detection signal, and the state of the second switch circuit needs to be further judged; and the Q1 is turned off under the action of the invalid detection signal, and there is no human body close to the vehicle at this time.

[0040] In the embodiment, the second switch circuit comprises a voltage stabilizing diode Z1 and a MOS transistor Q2, and the connection relationship is as shown in Figure 3 The anode of the Z1 is connected to the Bluetooth module, and the cathode is connected to the power module. The gate of the MOS transistor Q2 is connected to the Bluetooth module as the control end of the second switch circuit, the source of the Q2 is connected to the second end of the R4 in the first switch circuit as the input end of the second switch circuit, the source of the Q2 is also connected to the first voltage provided by the power module, and the drain of the Q2 is connected to the voice playing module as the output end of the alarm switch circuit. The circuit is turned on under the action of the arming signal output by the Bluetooth module, and the whole alarm switch circuit is in the connected state if the Q1 is also turned on, so that the voice playing module sends the anti-theft reminding voice; and the Q2 is turned off under the action of the disarming signal, and the whole alarm switch circuit is in the off state at this time, and the voice playing module does not work.

[0041] The Bluetooth module of the embodiment is located at the vehicle end. The Bluetooth module distinguishes the vehicle owner and other personnel by whether it can be wirelessly connected with the user end Bluetooth. Further, the Bluetooth module cooperates with the alarm switch circuit to realize the convenient operation mode of automatic arming / disarming. In the embodiment, the Bluetooth module is preferably based on the ECB02S2 Bluetooth chip to realize the above functions, as shown in Figure 4 .

[0042] The human body sensing module of the embodiment is realized based on a microwave sensing chip. The microwave sensing chip works by using microwave signals. Microwave is an electromagnetic wave with a frequency between 300 MHz and 300 GHz, and has the characteristics of strong penetration, good directivity, and strong anti-interference capability. The microwave sensing chip detects the presence or movement of a human body in the sensing area by emitting microwave signals and receiving the reflected signals. When the microwave signals encounter a moving human body, the Doppler effect occurs. The Doppler effect refers to the change in frequency of the signal received by the receiver when there is relative motion between the transmitter and the receiver. Therefore, within the detection range set by the microwave sensing chip, when a human body moves, the frequency of the reflected microwave signals changes. Based on the above microwave sensing principle, when a human body is detected within the set sensing distance, the detection signal sent by the output end (OUT pin) of the microwave sensing chip is a high-level signal (+5V level), which is an effective detection signal. When no human body is detected within the set sensing distance, the detection signal sent by the output end of the microwave sensing chip is a low-level signal (0V), which is an invalid detection signal. Optionally, the sensing distance of the microwave sensing chip can be set by the user, for example, the microwave sensing chip is configured to monitor human activities within 8 meters. In the embodiment, the model of the microwave sensing chip is preferably RCWL-0515, as shown in Figure 5 .

[0043] The voice playing module in the embodiment is realized based on a voice chip. The voice chip provides at least one anti-theft reminder voice and plays the specified voice set when the alarm is triggered. As shown in Figure 6 , in the embodiment, the model of the voice chip is preferably WT588F series. The P0, P1, P2, and P3 pins of the chip correspond to four kinds of anti-theft reminder voices. For example, the voices of middle-aged male, middle-aged female, young female, and young male can be provided and configured through the user end APP via Bluetooth communication.

[0044] The power module in the embodiment mainly provides the required power supply for the human body sensing module, the Bluetooth module, the alarm switch circuit and the voice playing module. Generally, the human body sensing module and the remaining modules require different power consumption, and therefore at least two voltage reduction chips are configured in the power module to provide two different voltages for power supply of the modules. Specifically, the power module is realized based on a first voltage reduction chip and a second voltage reduction chip. The first voltage reduction chip is used to generate a first voltage for power supply of the human body sensing module, and the second voltage reduction chip is used to generate a second voltage for power supply of the Bluetooth module, the alarm switch circuit and the voice playing module. As shown in Figure 7 , the model of the first voltage reduction chip U3 is 78L05, and the model of the second voltage reduction chip U4 is AZ1117EH-3.3TRG1. The input end of U3 is connected to the power supply 12V provided by the whole vehicle DC / DC module, and the output end of U3 is connected to the input end of U4. U3 is used to convert the 12V power supply into a first voltage 5V for power supply of the human body sensing module, and U4 is used to convert the 5V voltage into a second voltage 3.3V for power supply of the Bluetooth module, the alarm switch circuit and the voice playing module.

[0045] In one embodiment, the system further includes a user terminal APP connected through the Bluetooth module. When used for the first time, the vehicle owner binds parameters through the user terminal APP. After successful binding, the vehicle owner can also set the anti-theft reminder voice of the voice playing module and set the sensing distance of the human body sensing module through the user terminal APP. The operation interface of the user terminal APP is shown in Figure 8 , the first one is the main interface, and the main interface can be entered by opening the user terminal APP. The user binding button is clicked to enter the user parameter binding interface, as shown in Figure 8 , the second interface, the user terminal Bluetooth is paired with the Bluetooth module of the system. After successful connection, the factory code of the electric vehicle is input to complete the user parameter binding. It should be noted that the factory code is in the vehicle accessories, and after the user parameter binding is completed, it is not necessary to bind again. In the third interface of Figure 8 , the prompt type of the anti-theft reminder voice can be set, and the anti-theft sensing distance can be set in the fourth interface. After the above parameter setting is completed, the setting can be re-performed according to the actual demand. In addition, the user terminal APP also provides functions of historical alarm record query and real-time monitoring of anti-theft state, further improving the user experience.

[0046] It should be noted that the user terminal mentioned above can be but is not limited to various smart phones, tablet computers and portable wearable devices containing Bluetooth functions. The portable wearable devices can be smart watches, smart bracelets, head-mounted devices and the like. The above devices can download the user terminal APP provided by the application through the network.

[0047] Based on the same inventive concept, a further embodiment of the present application provides an electric two-wheeled vehicle, comprising an electric two-wheeled vehicle body and the intelligent anti-theft system of the electric vehicle as described above, which is arranged on the electric two-wheeled vehicle body to realize the intelligent anti-theft function of the vehicle. Since the implementation scheme for solving the problem provided by the electric two-wheeled vehicle is similar to the implementation scheme described in the above anti-theft system, reference can be made to the above description of the intelligent anti-theft system of the electric vehicle, and the description will not be repeated here.

[0048] The above is only the preferred embodiment of the present application, and the present application is not limited to the above embodiments. It can be understood that other improvements and changes directly derived or thought of by those skilled in the art without departing from the spirit and concept of the present application should be considered to be within the scope of protection of the present application.

Claims

1. An intelligent theft-proof system for an electric vehicle, characterized in that, The human body sensing module, the Bluetooth module, the alarm switch circuit, the voice playing module, and the power module are included. The human body sensing module is used for detecting human body activity and sending an effective detection signal to a first input end of the alarm switch circuit when a human body is detected. The Bluetooth module is used for detecting a user terminal Bluetooth signal and sending an unarming signal to a second input end of the alarm switch circuit when connected to the user terminal Bluetooth, or sending an arming signal to the second input end of the alarm switch circuit. An output end of the alarm switch circuit is connected to the voice playing module, the alarm switch circuit is disconnected when the effective detection signal and the unarming signal are simultaneously received, and the alarm switch circuit is connected when the effective detection signal and the arming signal are received, so that the voice playing module triggers an alarm.

2. The intelligent anti-theft system for electric vehicles of claim 1, wherein, The alarm switch circuit includes a first switch circuit and a second switch circuit, and an output end of the first switch circuit is connected to an input end of the second switch circuit. A control end of the first switch circuit is used as a first input end of the alarm switch circuit, and the first switch circuit is used for selecting a circuit on-off state according to a corresponding detection signal sent by the human body sensing module. A control end of the second switch circuit is used as a second input end of the alarm switch circuit, and the second switch circuit is used for selecting a circuit on-off state according to an arming / unarming signal sent by the Bluetooth module.

3. The intelligent anti-theft system for electric vehicle as claimed in claim 2 wherein, The first switch circuit includes a first resistor, a second resistor, a third resistor, a triode, and a filter capacitor. A base of the triode is connected to a first end of the first resistor and a second end of the second resistor, a second end of the first resistor is used as a control end of the first switch circuit, a second end of the second resistor and an emitter of the triode are grounded, a collector of the triode is connected to a first end of the filter capacitor, a first end of a fourth resistor, and the Bluetooth module through the third resistor, a second end of the filter capacitor and a second end of the fourth resistor are connected to a first voltage provided by the power module, and the second end of the fourth resistor is used as an output end of the first switch circuit.

4. The intelligent anti-theft system for electric vehicles of claim 2, wherein, The second switch circuit includes a voltage stabilizing diode and a MOS tube. An anode of the voltage stabilizing diode is connected to the Bluetooth module, and a cathode of the voltage stabilizing diode is connected to the power module. A gate of the MOS tube is used as a control end of the second switch circuit and is connected to the Bluetooth module, a source of the MOS tube is used as an input end of the second switch circuit and is also connected to the first voltage provided by the power module, and a drain of the MOS tube is used as an output end of the alarm switch circuit.

5. The intelligent anti-theft system for electric vehicles of claim 1, wherein, The human body sensing module is implemented based on a microwave induction chip. When a human body is detected within a set induction distance, a detection signal sent by an output end of the microwave induction chip is a high-level signal, which is the effective detection signal, and when a human body is not detected within the set induction distance, a detection signal sent by the output end of the microwave induction chip is a low-level signal, which is an invalid detection signal.

6. The intelligent anti-theft system for electric vehicle as claimed in claim 5 wherein, The microwave induction chip detects human body activity within a set induction distance by emitting a microwave signal and receiving a reflected signal.

7. The intelligent anti-theft system for electric vehicles of claim 1, wherein, The power module is implemented based on a first voltage reduction chip and a second voltage reduction chip. The input end of the first voltage reduction chip is connected to the power supply provided by the whole vehicle DC / DC module, the output end of the first voltage reduction chip is connected to the input end of the second voltage reduction chip, the first voltage reduction chip is used to generate the first voltage to supply power to the human body sensing module, and the second voltage reduction chip is used to generate the second voltage to supply power to the Bluetooth module, the alarm switch circuit and the voice playing module.

8. The intelligent anti-theft system for electric vehicles of claim 1, wherein, The voice playing module is realized based on a voice chip. The voice chip provides at least one anti-theft reminding voice and plays the set specified voice when the alarm is triggered.

9. The intelligent anti-theft system for electric vehicle as claimed in claim 1 wherein, The system further comprises a user terminal APP connected through the Bluetooth module, which is used to set the anti-theft reminding voice of the voice playing module and set the sensing distance of the human body sensing module.

10. An electric two-wheeled vehicle characterized by comprising: The system is arranged on the body of the electric two-wheeled vehicle.

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