UWB rear radar early warning device and electric bicycle thereof
By using the combination of UWB rear radar warning device and prompt lights on electric bicycles, the problem of the inability to directly convey early warning signals to pedestrians in the prior art is solved, effective early warnings for drivers and pedestrians or vehicles behind them are achieved, and driving safety is improved.
Patent Information
- Application Number
- CN202421673707.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The rear radar warning device of existing electric bicycles cannot directly convey the warning signal to pedestrians or non-electric bicycle drivers in the rear, resulting in possible collisions.
UWB rear radar warning device is used, combined with projection prompt lights, left prompt lights and right prompt lights, and the lights on these lights are controlled to light up through a microprocessor, and early warning information is conveyed to the driver and pedestrians or vehicles behind them respectively.
It effectively solves the problem that the existing technology cannot directly convey early warning signals to pedestrians behind, improves driving safety, and ensures that both drivers and pedestrians or vehicles behind can obtain early warnings in a timely manner.
Smart Images
Figure CN222946916U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric bicycles, in particular to a UWB rear radar early warning device and an electric bicycle thereof. Background Art
[0002] As an advanced safety assistance system, the electric bicycle rear radar warning device has been widely used in the electric bicycle field. The core of this device is to use radar technology to monitor the environment behind the vehicle in real time, including approaching pedestrians, bicycles and motor vehicles, to prevent rear-end collisions.
[0003] Although the rear radar warning device of electric bicycles has played an important role in improving driving safety, its existing design still has a significant technical limitation - the system mainly focuses on alerting the driver of the electric bicycle, but fails to effectively alert pedestrians or non-electric bicycle drivers behind. When an electric bicycle detects a potential threat from behind, its warning signal is limited to the driver and cannot be directly transmitted to pedestrians or vehicles outside. Even if the driver finds the danger, the vehicle behind does not find the danger, which may still lead to a collision. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a UWB rear radar warning device and an electric bicycle thereof, which solves the technical problem that the rear radar warning device of the existing electric bicycle directly transmits information to external pedestrians or vehicles.
[0005] According to an embodiment of the present utility model, a UWB rear radar warning device includes a UWB radar and a projection warning light, a left warning light and a right warning light connected to the UWB radar;
[0006] The UWB radar is provided with a microprocessor, which is respectively connected to the projection indicator light, the left indicator light and the right indicator light, and a stabilizing resistor is respectively provided between the microprocessor and the projection indicator light, the left indicator light and the right indicator light; the UWB radar is connected to a main battery for power supply.
[0007] The technical principle of the utility model is: UWB radar is used to sense the rear vehicle. When a vehicle is detected approaching from the rear, the microprocessor controls the projection warning light to light up, as well as the left warning light or the right warning light to light up. If the vehicle is at the left rear, the left warning light will light up, and if the vehicle is at the right rear, the right warning light will light up.
[0008] At the same time, the radar used in this application is a UWB radar, which has a maximum detection speed of 33km / h. The maximum speed of the new national standard electric bicycle is 25km / h. The UWB radar can perfectly match the application scenarios of electric bicycles with its cost advantage.
[0009] Compared with the prior art, the utility model has the following beneficial effects: through the UWB radar in conjunction with the projection warning light, the left warning light and the right warning light, the driver and the pedestrians or vehicles behind are warned, which solves the technical problem that the rear radar warning device of the existing electric bicycle directly transmits to the external pedestrians or vehicles.
[0010] Furthermore, the main battery is connected to a voltage converter, the voltage converter is provided with a Vin port, an IN_GND port, a Vout port and an OUT_GND port, the microprocessor is provided with a VCC port and a GND port, the Vin port is connected to the positive electrode of the main battery, the Vout port is connected to the VCC port, and the IN_GND port, OUT_GND port, GND port and the negative electrode of the main battery are respectively connected to a common common terminal.
[0011] Furthermore, the microprocessor is also provided with an IO1 port, an IO2 port and a PWM port; the left-side indicator light and the right-side indicator light are respectively connected to the IO1 port or the IO2 port via respective stabilizing resistors; the projection indicator light is connected to the PWM port via a connected stabilizing resistor; and the projection indicator light, the left-side indicator light and the right-side indicator light which are not connected to the stabilizing resistor are respectively connected to a common terminal.
[0012] Furthermore, the microprocessor is also connected to a photoelectric sensor, and a stabilizing resistor is provided between the photoelectric sensor and the microprocessor.
[0013] Furthermore, the microprocessor is also provided with an IO3 port, the photoelectric sensor is provided with a v+ port and a V- port, the v+ port is connected to the IO3 port via a connected stabilizing resistor, and the V- port is connected to a common terminal.
[0014] Furthermore, the photoelectric sensor is also provided with an AO port, and the microprocessor is also provided with an AI port, and the AI port is connected to the AO port.
[0015] Furthermore, the UWB radar is also provided with a Bluetooth module, and the Bluetooth module is connected to the microprocessor.
[0016] The Bluetooth module facilitates wireless connection of the UWB radar, system upgrades and user personalized settings. The personalized settings include but are not limited to: blind spot detection distance setting, collision warning distance setting, blind spot detection range setting and warning light maximum brightness setting.
[0017] An electric bicycle according to an embodiment of the utility model includes a body and a front portion arranged at one end of the body, a dashboard is provided at the center of the front portion, a UWB rear radar warning device is provided on the electric bicycle, the UWB radar is provided at an end of the body away from the front portion, the left warning light and the right warning light are respectively provided on both sides of the front portion, and the projection warning light is provided at a lower side position of the UWB radar provided on the body.
[0018] The UWB radar and projection warning light are set at the rear of the car, far away from the front of the car, so that the UWB radar can detect vehicles or people coming from the rear, while the projection warning light can accurately warn of vehicles or people coming from the rear. Because it is located below the UWB radar, it only illuminates the ground and does not directly illuminate vehicles or people coming from the rear. The left and right warning lights are set at the front of the car for the driver to observe.
[0019] Furthermore, the left warning light and the right warning light are arranged on both sides of the instrument panel.
[0020] Furthermore, rearview mirrors are provided on both sides of the front of the vehicle, and a left warning light and a right warning light are provided on the two rearview mirrors respectively. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a circuit schematic diagram of the UWB rear radar warning device of Example 1 of the utility model.
[0022] Figure 2 This is a schematic structural diagram of an electric bicycle with a rearview mirror according to Embodiment 1 of the utility model.
[0023] Figure 3 This is a schematic diagram of the front structure of a vehicle without a rearview mirror according to Example 1 of the utility model.
[0024] Figure 4 This is a circuit schematic diagram of the UWB rear radar warning device of Example 2 of the utility model.
[0025] Figure 5 This is a schematic diagram of the front structure of embodiment 2 of the utility model.
[0026] Figure 6 This is a circuit schematic diagram of the UWB rear radar warning device of Example 3 of the utility model.
[0027] Figure 7 This is a circuit schematic diagram of a UWB rear-mounted radar warning device according to Embodiment 4 of the present utility model.
[0028] Figure 8 This is a schematic structural diagram of an electric bicycle with a rearview mirror according to Embodiment 4 of the present utility model.
[0029] In the above figure: U1, UWB radar; U11, microprocessor; D2, projection indicator light; D3, left indicator light; D4, right indicator light; U5, photoelectric sensor; R1, R2, R3, R4, ballast resistor; V1, main battery; DCDC, voltage converter; VCC, common terminal;
[0030] 10. Car body; 20. Front of the car; 21. Instrument panel; 22. Rearview mirror. DETAILED DESCRIPTION
[0031] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0032] Example 1
[0033] like Figure 1 The UWB rear radar warning device shown includes a UWB radar U1 and a projection warning light D2, a left warning light D3 and a right warning light D4 connected to the UWB radar U1.
[0034] The UWB radar U1 is provided with a microprocessor U11, which is respectively connected to the projection indicator light D2, the left indicator light D3 and the right indicator light D4, and stabilizing resistors R1, R2 and R3 are respectively provided between the microprocessor U11 and the projection indicator light D2, the left indicator light D3 and the right indicator light D4; the UWB radar U1 is connected to the main battery V1 for power supply.
[0035] Specifically, the main battery V1 is connected to a voltage converter DCDC, which reduces the voltage of the main battery V1 to a voltage output of 12V. The voltage converter DCDC is provided with a Vin port, an IN_GND port, a Vout port and an OUT_GND port. The microprocessor U11 is provided with a VCC port and a GND port. The Vin port is connected to the positive electrode of the main battery V1, the Vout port is connected to the VCC port, the IN_GND port, the OUT_GND port and the GND port as well as the negative electrode of the main battery V1 are respectively connected to a common common terminal VCC, thereby supplying a 12V voltage to the microprocessor U11.
[0036] The specific microprocessor U11 is also provided with an IO1 port, an IO2 port and a PWM port, wherein the left-side indicator light D3 and the right-side indicator light D4 are respectively connected to the IO1 port or the IO2 port through their respective connected stabilizing resistors R1 and R2, and the microprocessor U11 controls the switching of the left-side indicator light D3 and the right-side indicator light D4 through the IO1 port or the IO2 port, respectively, and the projection indicator light D2 is connected to the PWM port through the connected stabilizing resistor R3. The microprocessor U11 can control the brightness change and switching of the projection indicator light D2 through the PWM port, and the projection indicator light D2, the left-side indicator light D3 and the right-side indicator light D4 are not connected to the ends of the stabilizing resistors and are respectively connected to the common terminal VCC.
[0037] like Figure 2-3 The electric bicycle shown includes a body 10 and a front 20 arranged at one end of the body 10, wherein a dashboard 21 is provided in the center of the front 20, and a UWB rear radar warning device is provided on the electric bicycle. Specifically, a UWB radar U1 is provided at the end of the body 10 away from the front 20, a left warning light D3 and a right warning light D4 are respectively provided on both sides of the front 20, and a projection warning light D2 is provided at the lower side of the position where the UWB radar U1 is provided on the body 10.
[0038] like Figure 2 As shown, rearview mirrors 22 are provided on both sides of the front of the vehicle 20 , and a left warning light D3 and a right warning light D4 are provided on the two rearview mirrors 22 , respectively.
[0039] like Figure 3 As shown, there are no rearview mirrors 22 on both sides of the front of the vehicle 20 , and the left warning light D3 and the right warning light D4 are arranged on both sides of the instrument panel 21 .
[0040] Example 2
[0041] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is that: the microprocessor U11 is also connected to the photoelectric sensor U5, and a stabilizing resistor R4 is provided between the photoelectric sensor U5 and the microprocessor U11. Specifically, the microprocessor U11 is also provided with an IO3 port and an AI port, and the photoelectric sensor U5 is provided with a v+ port, a V- port and an AO port. The v+ port is connected to the IO3 port through the connected stabilizing resistor, and the V- port is connected to the common terminal VCC, so that the microprocessor U11 can control the switch of the photoelectric sensor U5; the AI port is connected to the AO port, and then the photoelectric sensor U5 can transmit the analog signal of the detected light brightness to the microprocessor U11, so that the microprocessor U11 processes it and controls the brightness of the projection prompt light D2 to change.
[0042] like Figure 5 As shown, the photoelectric sensor U5 is arranged on the front of the vehicle 20 and located on the upper side of the instrument panel 21 to facilitate sensing the brightness of the ambient light.
[0043] Example 3
[0044] like Figure 6 As shown, the difference between this embodiment and embodiment 2 is that: the UWB radar U1 is further provided with a Bluetooth module, and the Bluetooth module is connected to the microprocessor U11 for performing system upgrades and user personalized settings of the UWB radar U1.
[0045] Example 4
[0046] like Figure 7-8As shown, the difference between this embodiment and embodiment 3 is that rearview mirrors 22 are provided on both sides of the front of the vehicle 20, and the two rearview mirrors 22 are respectively provided with a left warning light D3 and a right warning light D4, and the left warning light D3 and the right warning light D4 are also provided on both sides of the instrument panel 21, a total of four lights.
[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A UWB rear radar early warning device, characterized in that: It includes a UWB radar and a projection warning light, a left warning light and a right warning light connected to the UWB radar; The UWB radar is provided with a microprocessor, which is respectively connected to the projection indicator light, the left indicator light and the right indicator light, and a stabilizing resistor is respectively provided between the microprocessor and the projection indicator light, the left indicator light and the right indicator light; the UWB radar is connected to a main battery for power supply.
2. A UWB rear radar early warning device as claimed in claim 1, characterized in that: The main battery is connected to a voltage converter, and the voltage converter is provided with a Vin port, an IN_GND port, a Vout port and an OUT_GND port. The microprocessor is provided with a VCC port and a GND port. The Vin port is connected to the positive electrode of the main battery, the Vout port is connected to the VCC port, and the IN_GND port, the OUT_GND port, the GND port and the negative electrode of the main battery are respectively connected to a common common terminal.
3. A UWB rear radar early warning device as claimed in claim 2, characterized in that: The microprocessor is also provided with an IO1 port, an IO2 port and a PWM port. The left-side indicator light and the right-side indicator light are respectively connected to the IO1 port or the IO2 port through their respective connected stabilizing resistors. The projection indicator light is connected to the PWM port through the connected stabilizing resistor. The projection indicator light, the left-side indicator light and the right-side indicator light are respectively connected to a common terminal at the ends not connected to the stabilizing resistors.
4. A UWB rear radar early warning device as claimed in claim 2, characterized in that: The microprocessor is also connected to a photoelectric sensor, and a stabilizing resistor is arranged between the photoelectric sensor and the microprocessor.
5. A UWB rear radar early warning device as claimed in claim 4, characterized in that: The microprocessor is also provided with an IO3 port, and the photoelectric sensor is provided with a v+ port and a V- port. The v+ port is connected to the IO3 port via a connected stabilizing resistor, and the V- port is connected to a common terminal.
6. A UWB rear radar early warning device as claimed in claim 5, characterized in that: The photoelectric sensor is also provided with an AO port, and the microprocessor is also provided with an AI port, and the AI port is connected to the AO port.
7. The UWB rear radar warning device according to claim 1, characterized in that: The UWB radar is also provided with a Bluetooth module, and the Bluetooth module is connected to the microprocessor.
8. An electric bicycle, comprising a body and a front portion arranged at one end of the body, wherein a dashboard is arranged at the center of the front portion, characterized in that: The electric bicycle is provided with a UWB rear radar warning device as claimed in claim 1, the UWB radar is arranged at an end of the vehicle body away from the front of the vehicle, the left warning light and the right warning light are respectively arranged on both sides of the front of the vehicle, and the projection warning light is arranged at the lower side of the position of the UWB radar arranged on the vehicle body.
9. An electric bicycle as claimed in claim 8, characterized in that: The left warning light and the right warning light are arranged at both sides of the instrument panel.
10. An electric bicycle as claimed in claim 8 or 9, characterized in that: Rearview mirrors are arranged on both sides of the front of the vehicle, and a left warning light and a right warning light are respectively arranged on the two rearview mirrors.