A backstop

Abstract

This utility model relates to the field of parking assist device technology and discloses a highly reliable anti-reverse device with self-generating power, including a body (110), a power generation module (120) and a signal processing circuit (200) electrically connected to the power generation module (120) on the top of the body (110). The front end face of the power generation module (120) abuts against the end face of the wheel and is used to generate an electrical signal when the wheel applies pressure to the power generation module (120). The input end of the signal processing circuit (200) is connected to the output end of the power generation module (120) and is used to receive the electrical signal and rectify / boost the electrical signal to form an alarm signal, which is then wirelessly transmitted to the receiving end.

Description

Technical Field

[0001] This utility model relates to the technical field of parking assistance devices, and more specifically, to a backstop device. Background Technology

[0002] A roll stop is a safety device used to prevent a vehicle from sliding while parked, especially suitable for heavy vehicles such as trucks and vans when parking on slopes. Most existing roll stops are purely mechanical, relying on physical obstruction to prevent slippage. However, these devices often fail to issue timely warnings when slippage occurs, posing a safety hazard.

[0003] Currently, there are some backstop devices on the market with electronic alarm functions, such as voice prompt devices powered by built-in batteries (e.g., patent ZL201821732535.8). However, these devices pose a risk of explosion or fire if the battery is compressed, resulting in poor safety. Self-generating technologies (such as electromagnetic or piezoelectric power generation) have been applied in applications like switches and doorbells, but their application in backstop devices is not yet observed.

[0004] Therefore, it is necessary to develop an intelligent backstop device that does not require batteries and relies on self-generated power to achieve alarm functions, in order to solve the safety and timeliness problems existing in the current technology. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a backstop device with high reliability and self-generating power, which addresses the above-mentioned defects of the prior art, such as the risk of battery explosion or fire when subjected to pressure and poor safety.

[0006] The technical solution adopted by this utility model to solve its technical problem is: to construct a backstop device, including a body,

[0007] A power generation module and a signal processing circuit electrically connected to the power generation module are disposed on the top of the main body.

[0008] The front end face of the power generation module abuts against the end face of the wheel, and is used to generate an electrical signal when the wheel applies pressure to the power generation module;

[0009] The input terminal of the signal processing circuit is connected to the output terminal of the power generation module. It is used to receive the electrical energy signal, rectify / boost the electrical energy signal to form an alarm signal, and then output it to the receiving terminal via wireless transmission.

[0010] In some embodiments, the signal processing circuit includes at least a rectifier module, a boost module, and a wireless transmission module.

[0011] The input terminal of the rectifier module is connected to the output terminal of the power generation module, and is used to receive the electrical energy signal and to rectify the input electrical energy signal.

[0012] The input terminal of the boost module is connected to the output terminal of the rectifier module, and is used to boost the electrical signal.

[0013] The input terminal of the wireless transmitting module is connected to the output terminal of the boost module, and is used to convert the electrical signal into a digitally modulated signal suitable for channel transmission in order to issue an alarm signal.

[0014] In some embodiments, the power generation module includes at least a movable magnet and a fixedly mounted solenoid.

[0015] When the magnet is compressed, it moves and cuts magnetic field lines, generating an induced current in the solenoid.

[0016] In some embodiments, the rectifier module includes a first diode, a second diode, and a first capacitor.

[0017] The anode of the first diode and the cathode of the second diode are respectively connected to the output terminal of the power generation module to receive the electrical energy signal and convert the electrical energy signal into a DC signal.

[0018] The cathode of the first diode and one end of the first capacitor are respectively connected to the input terminal of the boost module.

[0019] The anode of the second diode and the other end of the first capacitor are connected to a common terminal.

[0020] In some embodiments, the boost module includes at least a first inductor and a synchronous boost chip.

[0021] One end of the first inductor and the input terminal of the synchronous boost chip are connected to the cathode of the first diode.

[0022] The other end of the first inductor is coupled to the switching terminal of the synchronous boost chip.

[0023] The output terminal of the synchronous boost chip is connected to the input terminal of the wireless transmission module. The synchronous boost chip is used to boost the rectified electrical signal to the wireless transmission module.

[0024] In some embodiments, the boost module further includes a first resistor and a second resistor connected in series.

[0025] The connection terminals of the first resistor and the second resistor are coupled to the low-voltage input terminal of the synchronous boost chip.

[0026] The other end of the second resistor is coupled to one end of the first inductor.

[0027] The other end of the first resistor is connected to the common terminal.

[0028] In some embodiments, the wireless transmitting module includes a communication module and an antenna interface.

[0029] The input terminal of the communication module is connected to the output terminal of the synchronous boost chip, and is used to receive the electrical signal and convert the electrical signal into a digital modulation signal suitable for channel transmission.

[0030] One end of the antenna interface is connected to the antenna end of the communication module for transmitting the digital modulation signal.

[0031] In some implementations, the communication module is configured as a 433MHz or Zigbee communication module for transmitting the digital modulation signal to the receiving end.

[0032] The anti-reverse device of this invention includes a main body, with a power generation module and a signal processing circuit electrically connected to the power generation module disposed on the top of the main body. The front end face of the power generation module abuts against the end face of the wheel, and is used to generate an electrical signal when the wheel applies pressure to the power generation module. The input end of the signal processing circuit is connected to the output end of the power generation module, and is used to receive the electrical signal, rectify / boost the electrical signal to form an alarm signal, and then output it to the receiving end via wireless transmission. Compared with the prior art, the use of electromagnetic or piezoelectric self-generating technology eliminates the need for any built-in battery or external power source, generating electricity only momentarily when the wheel runs over it, fundamentally eliminating safety accidents caused by battery problems and achieving inherent safety.

[0033] On the other hand, when a vehicle rolls over the anti-rollover device, the power generation module immediately starts to generate electricity, and the drive circuit automatically and instantly sends out a wireless alarm signal, which can notify the parking lot manager or the driver, so that countermeasures can be taken before the accident occurs, effectively avoiding property damage and personal injury. Attached Figure Description

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0035] Figure 1 This is a perspective view of an embodiment of the anti-reverse device provided by this utility model;

[0036] Figure 2 This is a schematic diagram of an embodiment of the power generation module provided by this utility model;

[0037] Figure 3 This is a circuit schematic diagram of an embodiment of the signal processing circuit provided by this utility model. Detailed Implementation

[0038] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0039] like Figures 1-3 As shown, in the first embodiment of the backstop of this utility model, the backstop 100 includes a body 110 and a power generation module 120 disposed on the top of the body 110.

[0040] Among them, such as Figure 1 As shown, the main body 110 has a structure that is lower in the front and higher in the back, with the front end being flat 111. Multiple adjacent hollow cavities 112 are provided inside the main body 110.

[0041] The main body 110 is used to fix the power generation module 120 and to limit or fix the wheels.

[0042] The power generation module 120 can be either electromagnetic self-generating or piezoelectric self-generating.

[0043] When the vehicle rolls away, the wheel pressure will first press on the top of the roll stop (corresponding to the power generation module 120). After the top of the roll stop is pressed, it will generate a weak electrical or current signal.

[0044] The signal processing circuit 200 is used to receive the electrical energy signal or current signal generated when the power generation module 120 is pressed by a wheel, and to perform rectification / boost / modulation processing on the input electrical energy signal or current signal before transmitting it to the receiving end.

[0045] Specifically, the power generation module 120 is embedded in the middle section of the main body 110, and the output terminal of the power generation module 120 is electrically connected to the input terminal of the signal processing circuit 200.

[0046] The front end face of the power generation module 120 abuts against the end face of the wheel. When the wheel applies pressure to the body 110 (i.e., the wheel slides backward or forward), the power generation module 120 contacts the wheel pressure before the body 110, so that the power generation module 120 generates an electrical energy signal or a current signal, and then outputs the electrical energy signal or current signal to the signal processing circuit 200.

[0047] The input terminal of the signal processing circuit 200 is connected to the output terminal of the power generation module 120. It is used to receive electrical energy signals or current signals, and after rectifying / boosting / modulating the electrical energy signals or current signals, it forms an alarm signal that can be wirelessly transmitted. The signal is then wirelessly transmitted to the receiving terminal. Parking lot managers or drivers can receive real-time proactive warnings based on the feedback alarm signal, changing "post-event discovery" to "pre-event warning".

[0048] Using this technical solution, electromagnetic or piezoelectric self-generating technology is employed, eliminating the need for any built-in batteries or external power sources. It generates electricity only momentarily when a wheel runs over it, fundamentally preventing safety accidents caused by battery issues and achieving inherent safety.

[0049] On the other hand, when a vehicle rolls over the anti-rollover device, the power generation module immediately starts to generate electricity, and the drive circuit automatically and instantly sends out a wireless alarm signal, which can notify the parking lot manager or the driver, so that countermeasures can be taken before the accident occurs, effectively avoiding property damage and personal injury.

[0050] In some implementations, such as Figure 3 As shown, to ensure the reliability of the output alarm signal, a rectifier module 210, a boost module 220, and a wireless transmission module 230 can be included in the signal processing circuit 200.

[0051] The rectifier module 210 has the functions of rectification and filtering;

[0052] The boost module 220 has the function of boosting voltage;

[0053] The wireless transmission module 230 has the functions of signal modulation and transmission;

[0054] Specifically, the input terminal of the rectifier module 210 is connected to the output terminal of the generator module 120 to receive electrical energy signals or current signals, and to rectify and filter the input electrical energy signals or current signals before outputting them to the boost module 220.

[0055] The input terminal of the boost module 220 is connected to the output terminal of the rectifier module 210, and is used to boost the electrical energy signal or current signal before outputting it to the wireless transmitter module 230.

[0056] The input terminal of the wireless transmitter module 230 is connected to the output terminal of the boost module 220, and is used to convert the electrical signal into a digitally modulated signal suitable for channel transmission, so as to transmit an alarm signal to the receiving end.

[0057] In some implementations, such as Figure 2 As shown, the power generation module 120 includes at least a movable magnet 120 and a fixedly mounted solenoid 121.

[0058] When the magnet 120 is pressed, it will move downwards. After the single coil on the solenoid 121 cuts the magnetic field lines, it will generate a weak current signal. The magnitude of the induced current can be controlled by a certain turns ratio.

[0059] In some implementations, such as Figure 3 As shown, the rectifier module 210 includes a first diode D101, a second diode D102, and a first capacitor C101.

[0060] The anode of the first diode D101 and the cathode of the second diode D102 are respectively connected to the output terminal (corresponding to pin 2 of H1) of the power generation module 120 to receive electrical energy signals and convert the electrical energy signals into DC signals.

[0061] The cathode of the first diode D101 and one end of the first capacitor C101 are respectively connected to the input terminal of the boost module 220.

[0062] The anode of the second diode D102 and the other end of the first capacitor C101 are connected to the common terminal.

[0063] In some implementations, such as Figure 3 As shown, the boost module 220 includes at least a first inductor L101 and a synchronous boost chip U101.

[0064] One end of the first inductor L101 and the input terminal (corresponding to pin 6) of the synchronous boost chip U101 are connected to the cathode of the first diode D101.

[0065] The other end of the first inductor L101 is coupled to the switching terminal (pin 9) of the synchronous boost chip U101.

[0066] The output terminal (pin 2) of the synchronous boost chip U101 is connected to the input terminal (pin 3) of the wireless transmitter module 230 through a third resistor R103 and a second capacitor C102 connected in series.

[0067] Specifically, the connection point of the third resistor R103 and the second capacitor C102 is connected to the input terminal (pin 3) of the wireless transmission module 230.

[0068] The other end of the third resistor R103 is connected to the low-voltage output terminal (corresponding to pin 4) of the synchronous boost chip U101, and one end of the second capacitor C102 is connected to the common terminal.

[0069] The synchronous boost chip U101 is used to boost the rectified electrical signal to the wireless transmission module 230.

[0070] In some implementations, such as Figure 3 As shown, the boost module 220 also includes a first resistor R101 and a second resistor R102 connected in series.

[0071] The connection terminals of the first resistor R101 and the second resistor R102 are coupled to the low-voltage input terminal (corresponding to pin 7) of the synchronous boost chip U101.

[0072] The other end of the second resistor R102 is coupled to one end of the first inductor L101.

[0073] The other end of the first resistor R101 is connected to the common terminal.

[0074] In some implementations, such as Figure 3 As shown, the wireless transmission module 230 includes a communication module U102 and an antenna interface H2.

[0075] The input terminal (pin 3) of the communication module U102 is connected to the output terminal (pin 2) of the synchronous boost chip U101, which is used to receive power signals and convert them into digital modulation signals suitable for channel transmission.

[0076] One end of the antenna interface H2 (corresponding to pin 2) is connected to the antenna end of the communication module U102 (corresponding to pin 1) for transmitting digital modulation signals.

[0077] The communication module U102 is configured as a 433MHz or Zigbee communication module, used to send digital modulation signals to the receiving end.

[0078] Specifically, when the power generation module 120 is pressed, it generates a corresponding electrical energy signal / current signal. This signal is rectified by the first diode D101 and then synchronously boosted by the synchronous boost chip U101 to about 3.3V before being output to the communication module U102, which operates at a voltage of 1.75~3.3V. When the communication module U102 is powered on, it generates an alarm signal upon power-on according to the default configuration and can automatically send an alarm signal. The receiving end can be installed in the security management room of the parking lot or the driver's cab, and is powered by mains power or vehicle power supply. After receiving the alarm signal, the receiving end sends an alarm signal to the car owner's mobile phone / parking lot security personnel via 4G, thereby realizing closed-loop control of the alarm.

[0079] A power generation module 120 is installed on the top of the anti-rollover device 100. This structure can be electromagnetic self-generating or piezoelectric self-generating. When the vehicle rolls away, the wheel pressure will first press on the top of the anti-rollover device 100. After the top of the anti-rollover device 100 is pressed, it generates an alarm signal to promptly notify the driver and parking lot staff, so as to provide timely warning and evacuate personnel.

[0080] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A backstop device, comprising a body, characterized in that, A power generation module and a signal processing circuit electrically connected to the power generation module are disposed on the top of the main body. The front end face of the power generation module abuts against the end face of the wheel, and is used to generate an electrical signal when the wheel applies pressure to the power generation module; The input terminal of the signal processing circuit is connected to the output terminal of the power generation module. It is used to receive the electrical energy signal, rectify / boost the electrical energy signal to form an alarm signal, and then output it to the receiving terminal via wireless transmission.

2. The anti-reverse device according to claim 1, characterized in that, The signal processing circuit includes at least a rectifier module, a boost module, and a wireless transmission module. The input terminal of the rectifier module is connected to the output terminal of the power generation module, and is used to receive the electrical energy signal and to rectify the input electrical energy signal. The input terminal of the boost module is connected to the output terminal of the rectifier module, and is used to boost the electrical signal. The input terminal of the wireless transmitting module is connected to the output terminal of the boost module, and is used to convert the electrical signal into a digitally modulated signal suitable for channel transmission in order to issue an alarm signal.

3. The anti-reverse device according to claim 1, characterized in that, The power generation module includes at least a movable magnet and a fixed solenoid. When the magnet is compressed, it moves and cuts magnetic field lines, generating an induced current in the solenoid.

4. The anti-reverse device according to claim 2, characterized in that, The rectifier module includes a first diode, a second diode, and a first capacitor. The anode of the first diode and the cathode of the second diode are respectively connected to the output terminal of the power generation module to receive the electrical energy signal and convert the electrical energy signal into a DC signal. The cathode of the first diode and one end of the first capacitor are respectively connected to the input terminal of the boost module. The anode of the second diode and the other end of the first capacitor are connected to a common terminal.

5. The anti-reverse device according to claim 4, characterized in that, The boost module includes at least a first inductor and a synchronous boost chip. One end of the first inductor and the input terminal of the synchronous boost chip are connected to the cathode of the first diode. The other end of the first inductor is coupled to the switching terminal of the synchronous boost chip. The output terminal of the synchronous boost chip is connected to the input terminal of the wireless transmission module. The synchronous boost chip is used to boost the rectified electrical signal to the wireless transmission module.

6. The anti-reverse device according to claim 5, characterized in that, The boost module also includes a first resistor and a second resistor connected in series. The connection terminals of the first resistor and the second resistor are coupled to the low-voltage input terminal of the synchronous boost chip. The other end of the second resistor is coupled to one end of the first inductor. The other end of the first resistor is connected to the common terminal.

7. The anti-reverse device according to claim 5, characterized in that, The wireless transmission module includes a communication module and an antenna interface. The input terminal of the communication module is connected to the output terminal of the synchronous boost chip, and is used to receive the electrical signal and convert the electrical signal into a digital modulation signal suitable for channel transmission. One end of the antenna interface is connected to the antenna end of the communication module for transmitting the digital modulation signal.

8. The anti-reverse device according to claim 7, characterized in that, The communication module is configured as a 433MHz or Zigbee communication module, used to send the digital modulation signal to the receiving end.

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