UWB anti-collision radar system

Abstract

The utility model discloses a UWB anti-collision radar system, which comprises an antenna unit, a UWB unit, an MCU unit, a low-power-consumption Bluetooth unit and a storage unit, the UWB unit is electrically connected with the antenna unit, the UWB unit is respectively and electrically connected with the MCU unit and the low-power-consumption Bluetooth unit, the MCU unit is electrically connected with the low-power-consumption Bluetooth unit, the storage unit is electrically connected with the MCU unit, and the MCU unit is electrically connected with the low-power-consumption Bluetooth unit. The low-power-consumption Bluetooth unit is electrically connected with the storage unit, the antenna unit is used for receiving and transmitting radio frequency signals, the UWB unit is used for realizing two-dimensional and three-dimensional distance measurement, the MCU unit is used for sending control signals to the UWB unit and the low-power-consumption Bluetooth unit, the low-power-consumption Bluetooth unit is used for realizing Bluetooth communication to control resetting of the MCU unit and the UWB unit, and the antenna unit is used for receiving and transmitting radio frequency signals. The storage unit is used for storing UWB firmware. On the basis of multiplexing the vehicle-mounted UWB digital key hardware, the anti-collision reminding function is realized by using the UWB technology, the extra cost is hardly increased, and the UWB technology has obvious advantages in cost and performance.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-collision radars, in particular to a UWB anti-collision radar system. Background Art

[0002] Anti-collision radar systems typically consist of multiple sensors, a microcontroller, and an alarm. The system uses ultrasonic or microwave signals, transmitted and received by the sensors under the control of a microcontroller. The system then compares the return time of the signals or uses other methods to calculate the distance to the obstacle. The system then alerts the driver through an alarm, thereby improving driving safety.

[0003] Currently, millimeter-wave radar and lidar are the most common types of automotive radar. However, both typically require additional equipment installed on the vehicle, increasing the cost of use. Lidar, in particular, is relatively expensive due to its complex laser scanning technology and high-precision sensors. Furthermore, it also has certain performance limitations. Millimeter-wave radar can operate stably in adverse weather conditions, but its accuracy and resolution are relatively low, making it unable to accurately identify small objects. While lidar offers excellent accuracy and resolution, making it suitable for long-range detection, its performance is significantly affected in adverse weather conditions such as rain and fog. Utility Model Content

[0004] The utility model aims at solving the problems and shortcomings of the prior art and provides a UWB anti-collision radar system.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is to provide a UWB collision avoidance radar system, which is characterized in that it includes an antenna unit, a UWB unit, an MCU unit, a low-power Bluetooth unit and a storage unit, the UWB unit is electrically connected to the antenna unit, the UWB unit is also electrically connected to the MCU unit and the low-power Bluetooth unit respectively, the MCU unit is electrically connected to the low-power Bluetooth unit, the low-power Bluetooth unit is electrically connected to the storage unit, the antenna unit is used to receive and transmit radio frequency signals, the UWB unit is used to realize two-dimensional and three-dimensional ranging, the MCU unit is used to send control signals to the UWB unit and the low-power Bluetooth unit, the low-power Bluetooth unit is used to realize Bluetooth communication to control the reset of the MCU unit and the UWB unit, and the storage unit is used to store UWB firmware.

[0006] Preferably, the antenna unit includes a single transmitting antenna and a single receiving antenna, the single transmitting antenna is used to transmit radio frequency signals, and the single receiving antenna is used to receive radio frequency signals.

[0007] Preferably, the antenna unit includes a first transmitting antenna, a second transmitting antenna and a first receiving antenna, a second receiving antenna, the first transmitting antenna and the second transmitting antenna are used to transmit radio frequency signals, and the first receiving antenna and the second receiving antenna are used to receive radio frequency signals.

[0008] Preferably, the antenna unit is a multi-transceiver antenna unit, and the antenna unit includes multiple transmitting antennas and multiple receiving antennas. The multiple transmitting antennas are used to transmit radio frequency signals, and the multiple receiving antennas are used to receive radio frequency signals.

[0009] Preferably, the MCU unit is communicatively connected to the UWB unit via an SPI interface.

[0010] Preferably, the low-power Bluetooth unit is communicatively connected to the UWB unit via a UART interface and an RST interface.

[0011] Preferably, the MCU unit is communicatively connected to the low-power Bluetooth unit via a UART interface and an RST interface.

[0012] Preferably, the low-power Bluetooth unit is communicatively connected to the storage unit via an SPI interface.

[0013] Preferably, it also includes an alarm device, which is used to issue an alarm reminder when the distance information obtained by the UWB unit is less than a preset value, and the alarm device is electrically connected to the MCU unit.

[0014] The positive progress effect of this utility model is:

[0015] First, this utility model reuses the existing in-vehicle UWB digital key hardware, utilizing UWB technology to implement collision avoidance warnings, eliminating the need for any additional equipment on the vehicle and incurring virtually no additional costs. Furthermore, compared to millimeter-wave radar and lidar, UWB technology provides precise positioning and distance measurement at short ranges, making it particularly suitable for collision avoidance warnings and unaffected by inclement weather. Therefore, this utility model offers significant advantages in both cost and performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention, not all embodiments. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0017] Figure 1 This is a structural diagram of a single-channel transceiver UWB collision avoidance radar system according to a preferred embodiment.

[0018] Figure 2 This is a structural diagram of a dual-channel transceiver UWB collision avoidance radar system according to a preferred embodiment.

[0019] Figure 3 This is a structural diagram of a multi-channel transceiver UWB collision avoidance radar system according to a preferred embodiment. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] The technical solution of the present utility model is described in detail below with reference to specific embodiments.

[0022] The utility model provides a UWB collision avoidance radar system, which includes an antenna unit 1, a UWB (Ultra-Wideband) unit 2, an MCU (Microcontroller Unit) unit 3, a low-power Bluetooth unit 4, a storage unit 5 and an alarm device 6.

[0023] like Figure 1-Figure 3 As shown, the UWB unit 2 is electrically connected to the antenna unit 1. The UWB unit 2 is also electrically connected to the MCU unit 3 and the low-power Bluetooth unit 4. The MCU unit 3 is electrically connected to the low-power Bluetooth unit 4, which is electrically connected to the storage unit 5. The alarm device 6 is electrically connected to the MCU unit 3. The antenna unit 1 is used to receive and transmit radio frequency signals. The MCU unit 3 is used to send control signals to the UWB unit 2 and the low-power Bluetooth unit 4. The low-power Bluetooth unit 4 is used to implement Bluetooth communication to control the reset of the MCU unit 3 and the UWB unit 2. The storage unit 5 is used to store the UWB firmware. The alarm device 6 is used to issue an alarm when the distance information obtained by the UWB unit 2 is less than a preset value.

[0024] Antenna unit 1 is a multi-transmitter / receiver antenna unit, comprising multiple transmit antennas for transmitting radio frequency signals and multiple receive antennas for receiving radio frequency signals. UWB unit 2 can configure antenna unit 1 based on actual needs, enabling multi-channel transmission and reception to support functions such as two-dimensional and three-dimensional ranging, speed, and angle measurement. Example 1

[0025] like Figure 1 As shown, the UWB unit 2 is electrically connected to the antenna unit 1. The UWB unit 2 is also electrically connected to the MCU unit 3 and the low-power Bluetooth unit 4. The MCU unit 3 is electrically connected to the low-power Bluetooth unit 4, which is electrically connected to the storage unit 5. The alarm device 6 is electrically connected to the MCU unit 3. The antenna unit 1 is used to receive and transmit radio frequency signals. The MCU unit 3 is used to send control signals to the UWB unit 2 and the low-power Bluetooth unit 4. The low-power Bluetooth unit 4 is used to implement Bluetooth communication to control the reset of the MCU unit 3 and the UWB unit 2. The storage unit 5 is used to store the UWB firmware. The alarm device 6 is used to issue an alarm when the distance information obtained by the UWB unit 2 is less than a preset value.

[0026] In this embodiment, the UWB unit 2 configures the antenna unit 1 for single-channel transmission and reception. The antenna unit 1 includes a single transmitting antenna and a single receiving antenna, namely a first transmitting antenna 11 and a first receiving antenna 14. The first transmitting antenna 11 is used to transmit radio frequency signals, and the first receiving antenna 14 is used to receive radio frequency signals.

[0027] Furthermore, the communication connection between the UWB unit 2, the MCU unit 3, and the low-power Bluetooth unit 4 is as follows:

[0028] Among them, the MCU unit 3 is connected to the UWB unit 2 through the SPI (Serial Peripheral Interface) interface; the low-power Bluetooth unit 4 is connected to the UWB unit 2 through the UART (Universal Asynchronous Receiver-Transmitter) interface and the RST (Reset) interface; the MCU unit 3 is connected to the low-power Bluetooth unit 4 through the UART interface and the RST interface; the low-power Bluetooth unit 4 is connected to the storage unit 5 through the SPI interface. Example 2

[0029] like Figure 2As shown, the UWB unit 2 is electrically connected to the antenna unit 1. The UWB unit 2 is also electrically connected to the MCU unit 3 and the low-power Bluetooth unit 4. The MCU unit 3 is electrically connected to the low-power Bluetooth unit 4, which is electrically connected to the storage unit 5. The alarm device 6 is electrically connected to the MCU unit 3. The antenna unit 1 is used to receive and transmit radio frequency signals. The MCU unit 3 is used to send control signals to the UWB unit 2 and the low-power Bluetooth unit 4. The low-power Bluetooth unit 4 is used to implement Bluetooth communication to control the reset of the MCU unit 3 and the UWB unit 2. The storage unit 5 is used to store the UWB firmware. The alarm device 6 is used to issue an alarm when the distance information obtained by the UWB unit 2 is less than a preset value.

[0030] In this embodiment, UWB unit 2 configures antenna unit 1 for dual-channel transmission and reception. Antenna unit 1 includes a first transmitting antenna 11, a second transmitting antenna 12, and a first receiving antenna 14, and a second receiving antenna 15. The first transmitting antenna 11 and the second transmitting antenna 12 are used to transmit radio frequency signals, and the first receiving antenna 14 and the second receiving antenna 15 are used to receive radio frequency signals. Example 3

[0031] like Figure 3 As shown, the UWB unit 2 is electrically connected to the antenna unit 1. The UWB unit 2 is also electrically connected to the MCU unit 3 and the low-power Bluetooth unit 4. The MCU unit 3 is electrically connected to the low-power Bluetooth unit 4, which is electrically connected to the storage unit 5. The alarm device 6 is electrically connected to the MCU unit 3. The antenna unit 1 is used to receive and transmit radio frequency signals. The MCU unit 3 is used to send control signals to the UWB unit 2 and the low-power Bluetooth unit 4. The low-power Bluetooth unit 4 is used to implement Bluetooth communication to control the reset of the MCU unit 3 and the UWB unit 2. The storage unit 5 is used to store the UWB firmware. The alarm device 6 is used to issue an alarm when the distance information obtained by the UWB unit 2 is less than a preset value.

[0032] In this embodiment, the UWB unit 2 configures the antenna unit 1 for multi-channel transmission and reception. The antenna unit 1 includes n transmitting antennas and n receiving antennas. The first transmitting antenna 11 to the nth transmitting antenna 13 are used to transmit radio frequency signals, and the first receiving antenna 14 to the nth receiving antenna 16 are used to receive radio frequency signals.

[0033] This new system, based on UWB technology, reuses the vehicle's UWB digital key hardware to implement collision avoidance warnings, eliminating the need for any on-vehicle equipment and incurring virtually no additional costs. Furthermore, compared to millimeter-wave radar and lidar, UWB technology provides precise positioning and distance measurement at short ranges, making it particularly suitable for collision avoidance warnings and unaffected by inclement weather. Therefore, this new system offers significant advantages in both cost and performance.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention.

Claims

1. A UWB collision avoidance radar system, characterized in that: It includes an antenna unit, a UWB unit, an MCU unit, a low-power Bluetooth unit and a storage unit. The UWB unit is electrically connected to the antenna unit, and the UWB unit is also electrically connected to the MCU unit and the low-power Bluetooth unit respectively. The MCU unit is electrically connected to the low-power Bluetooth unit, and the low-power Bluetooth unit is electrically connected to the storage unit. The antenna unit is used to receive and transmit radio frequency signals, the UWB unit is used to realize two-dimensional and three-dimensional ranging, the MCU unit is used to send control signals to the UWB unit and the low-power Bluetooth unit, the low-power Bluetooth unit is used to realize Bluetooth communication to control the reset of the MCU unit and the UWB unit, and the storage unit is used to store UWB firmware.

2. A UWB collision avoidance radar system according to claim 1, characterized in that: The antenna unit includes a single transmitting antenna and a single receiving antenna. The single transmitting antenna is used to transmit radio frequency signals, and the single receiving antenna is used to receive radio frequency signals.

3. The UWB collision avoidance radar system according to claim 1, wherein: The antenna unit includes a first transmitting antenna, a second transmitting antenna, and a first receiving antenna and a second receiving antenna. The first transmitting antenna and the second transmitting antenna are used to transmit radio frequency signals, and the first receiving antenna and the second receiving antenna are used to receive radio frequency signals.

4. The UWB collision avoidance radar system according to claim 1, wherein: The antenna unit is a multi-transmitting and receiving antenna unit, and the antenna unit includes multiple transmitting antennas and multiple receiving antennas. The multiple transmitting antennas are used to transmit radio frequency signals, and the multiple receiving antennas are used to receive radio frequency signals.

5. The UWB collision avoidance radar system according to claim 1, wherein: The MCU unit is connected to the UWB unit via an SPI interface.

6. The UWB collision avoidance radar system according to claim 1, wherein: The low-power Bluetooth unit is communicatively connected to the UWB unit via a UART interface and an RST interface.

7. The UWB collision avoidance radar system according to claim 1, wherein: The MCU unit is connected to the low-power Bluetooth unit through the UART interface and the RST interface.

8. The UWB collision avoidance radar system according to claim 1, wherein: The low-power Bluetooth unit is communicatively connected to the storage unit via an SPI interface.

9. The UWB collision avoidance radar system according to claim 1, wherein: It also includes an alarm device, which is used to issue an alarm reminder when the distance information obtained by the UWB unit is less than a preset value. The alarm device is electrically connected to the MCU unit.

Images