Unmanned driving system power supply and management and control unit

Abstract

The utility model discloses a power supply and management and control unit of an unmanned driving system, and relates to the technical field of unmanned driving. The utility model discloses a power supply input circuit, 12V power supply circuit, 24V power supply circuit, 5V power supply circuit, singlechip, 11 independent controllable power supply channel and CAN transceiver module, power supply input circuit comprises 24V automobile storage battery power supply signal, fuse, relay and ON gear signal, 24V automobile storage battery power supply signal is connected with fuse, fuse is connected with normally open contact one end of relay, and the relay is connected with the ON gear signal. The other end of the normally open contact of the relay is output, an ON-gear signal is connected with a coil of the relay, after the automobile is powered on, the ON-gear signal is powered on, namely the coil of the relay is powered on, the normally open contact of the relay is closed, and a 24V automobile storage battery power signal is output from the closed normally open contact of the relay. According to the utility model, real-time monitoring of voltage and current signals of a power supply channel can be realized through the single-chip microcomputer in various power supply output modes.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned driving, in particular to an unmanned driving system power supply and control unit. Background Art

[0002] With the continuous development and progress of science and technology, driverless technology is gradually becoming a reality. The equipment of the driverless system includes lidar, millimeter-wave radar, ultrasonic radar, camera, integrated navigation, 5GCPE, computing unit, motion controller, vehicle-side agent controller, etc. The power-on timing and power supply of these devices are crucial to the operation of the driverless system.

[0003] In the prior art, the equipment of the unmanned driving system is generally simply powered. Simply powering the equipment of the unmanned driving system cannot meet the operation of the unmanned driving system. For the power supply of the unmanned driving system, it is impossible to accurately monitor the power supply management and control the power supply timing. Utility Model Content

[0004] In order to solve the problems that the prior art generally simply powers the equipment of the unmanned driving system, the simple power supply of the unmanned driving system equipment cannot meet the operation of the unmanned driving system, and the power supply of the unmanned driving system cannot be accurately monitored, managed and controlled. The purpose of the utility model is to provide a power supply and control unit for an unmanned driving system.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: an unmanned driving system power supply and control unit, including a power input circuit, a 12V power circuit, a 24V power circuit, a 5V power circuit, a single-chip microcomputer, 11 independently controllable power supply channels and a CAN transceiver module. The power input circuit includes a 24V car battery power signal, a fuse, a relay, and an ON gear signal. The 24V car battery power signal is connected to the fuse, the fuse is connected to one end of the normally open contact of the relay, and the other end of the normally open contact of the relay is output. The ON gear signal is connected to the coil of the relay. When the car is powered on, the ON gear signal is powered on, that is, the relay coil is powered on, and the normally open contact of the relay is closed, so that the 24V car battery power signal is output from the closed normally open contact of the relay.

[0006] The power input circuit outputs the same voltage as the 24V car battery through a common-mode inductor, providing a wide-voltage power supply for the unmanned driving system.

[0007] The 12V power supply circuit is composed of a power input circuit output, a common mode inductor, and a 12V power supply module 2, which outputs a stable 12V voltage to provide a 12V power supply for the unmanned driving system.

[0008] The 24V power supply circuit is composed of a power input circuit output, a common mode inductor, and a 24V power supply module 3, which outputs a stable 24V voltage to provide a 24V power supply for the unmanned driving system.

[0009] The 5V power supply circuit is connected to the output end of the 12V power supply circuit, and then connected to a low voltage difference linear voltage stabilizing power supply module to output a stable 5V voltage to provide working power for the single chip microcomputer.

[0010] The 11 independently controllable power supply channels realize three power supplies: the first power supply is a wide voltage power supply, the voltage is the same as the 24V car battery voltage, and provides 2 independently controllable power supply channels. The second power supply is a 24V power supply, which stably outputs 24V and provides 2 independently controllable power supply channels. The third power supply is a 12V power supply, which stably outputs 12V and provides 7 independently controllable power supply channels.

[0011] The 11 independently controllable power supply channels, each of which includes a switch output circuit, a plug-in fuse 4, a status LED indicator light, a voltage detection circuit and a current detection circuit.

[0012] The switch output circuit is driven and controlled by the IO port of the single-chip microcomputer to realize the opening and closing of the power supply channel.

[0013] The plug-in fuse 4 provides short-circuit protection for the power supply channel.

[0014] The status LED indicator light indicates the working status of the power supply channel in real time.

[0015] The voltage detection circuit detects the voltage of the power supply channel in real time. The circuit is connected to the AD port of the single-chip microcomputer and uploads the voltage signal to the single-chip microcomputer in real time.

[0016] The current detection circuit detects the current of the power supply channel in real time. The circuit is connected to the AD port of the single-chip microcomputer and uploads the current signal to the single-chip microcomputer in real time.

[0017] The CAN transceiver module is connected to the CAN port of the single-chip microcomputer. The transceiver module is connected to the outside through the CAN network, thereby establishing a channel for the single-chip microcomputer to communicate with the outside. The CAN to 5G device is connected to the CAN network, and control instructions can be sent remotely to the single-chip microcomputer. The single-chip microcomputer can remotely upload information.

[0018] The single-chip microcomputer is the core control component of the power supply and management and control unit of the unmanned driving system. The single-chip microcomputer drives and controls the switch output circuit of 11 independently controllable power supply channels through the IO port and the SPI port. The 11 independently controllable power supply channels are respectively connected to the equipment of the unmanned driving system. The power-on timing of the equipment of the unmanned driving system is controlled by the internal program of the single-chip microcomputer through the IO port and the SPI port. The single-chip microcomputer obtains the voltage and current signals of the 11 independently controllable power supply channels in real time through the AD port. When the voltage or current signal of the power supply channel is found to be abnormal, the single-chip microcomputer is connected to the CAN transceiver through the CAN port, and the abnormal information of the power supply channel is uploaded to the external CAN network in real time.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model can monitor the voltage and current signals of the power supply channel in real time through a single chip microcomputer and a variety of power output modes.

[0021] 2. The utility model can indicate the working status of the channel power supply in real time through the status LED indicator. When the status LED indicator is on, it means that the power supply channel is open and the power is output. When the status LED indicator is off, it means that the power supply channel is closed or the plug-in fuse is blown and there is no power output. The power output of the power supply channel can be controlled by the power and signal interface. The transparent PVC cover can prevent the plug-in fuse from falling off due to accidental touch. The heat sink can transfer the working heat from the structural shell to the external heat sink when the single-chip microcomputer, common mode inductor and relay are working, and the heat is naturally dissipated through the heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is the principle diagram 1 of the utility model.

[0024] Figure 2 This is the principle diagram-2 of the utility model.

[0025] Figure 3 This is the appearance diagram of the utility model.

[0026] In the figure: 1. Power input interface; 2. 12V power module; 3. 24V power module; 4. Plug-in fuse; 5. Status LED indicator; 6. Power and signal interface; 7. Transparent PVC cover; 8. Heat sink. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example: Figure 1-3 As shown, the utility model provides an unmanned driving system power supply and control unit, including a power input circuit, a 12V power module, a 24V power module, and a 5V low voltage difference linear regulated power supply.

[0029] The power input circuit includes a 24V car battery power signal, a fuse, a relay, and an ON gear signal. The 24V car battery power signal is connected to the fuse, the fuse is connected to one end of the normally open contact of the relay, the other end of the normally open contact of the relay is output, and the ON gear signal is connected to the coil of the relay. When the car is powered on, the ON gear signal is powered on, that is, the relay coil is powered on, and the normally open contact of the relay is closed, so that the 24V car battery power signal is output from the closed normally open contact of the relay.

[0030] The power input circuit is connected to the common mode inductor output power supply VIN, and the power supply voltage is the same as the 24V automobile battery power supply voltage.

[0031] The power input circuit is connected to the common mode inductor and the 12V power module 2, and outputs a stable 12V power supply DC12V.

[0032] The power input circuit is connected to the common mode inductor and the 24V power module 3, and outputs a stable 24V power supply DC24V.

[0033] The power supply DC12V is connected to the low voltage drop linear regulator TPS5430, and a stable 5V power supply DC5V is output. The ON signal is connected to the transistor circuit and then connected to TPS5430. When the power supply DC12V and the ON signal are powered on, the TPS5430 is triggered to work and output a 5V power supply.

[0034] like Figure 2 As shown, an unmanned driving system power supply and control unit includes a single-chip microcomputer, 11 independently controllable power supply channels and a CAN transceiver module.

[0035] The microcontroller is FS32K144, powered by a DC5V power supply.

[0036] 11 independent controllable power supply channels, realizing three power outputs: the first is wide voltage power output, the voltage is the same as the 24V car battery voltage, providing 2 independent power channels. The second power supply is 24V power output, stable output 24V, providing 2 independent power channels. The third power supply is 12V power output, stable output 12V, providing 7 independent power channels.

[0037] The first power output: the MCU is connected to the drive circuit through the IO port, the drive circuit is connected to the coil of the relay HFKP / 012, one end of the normally open contact of the relay is connected to the power supply VIN, and the other end of the normally open contact of the relay is connected to the fuse and indicator light, and then two independently controllable power channels CH1 and CH2 are output. CH1 and CH2 provide a wide voltage 10A power supply channel for the unmanned driving system. The MCU is connected to the voltage detection circuit and the current detection CC6920SO through the AD port to monitor the voltage and current signals of the power supply channel in real time.

[0038] The second power output: The MCU is connected to the electronic switch BTT6030 through the IO port, the electronic switch is connected to the power supply DC24V, and the output end of the electronic switch is connected to the fuse and indicator light to output two independently controllable power channels CH10 and CH11. CH10 and CH11 provide 24V4A power supply channels for the unmanned driving system. The MCU is connected to the voltage detection circuit and the current detection INA199 through the AD port to monitor the voltage and current signals of the power supply channel in real time.

[0039] The third power output: The MCU is connected to the drive circuit through the IO port, the drive circuit is connected to the coil of the relay HFKT-L, one end of the normally open contact of the relay is connected to the power supply DC12V, and the other end of the normally open contact of the relay is connected to the fuse and the indicator light to output an independently controllable power channel CH3. CH3 provides a 12V 15A power supply channel for the unmanned driving system. The MCU is connected to the electronic switch BTS71033 through the SPI port, the electric switch is connected to the power supply DC12V, and the output end of the electronic switch is connected to 6 fuses and indicator lights to output 6 independently controllable power channels CH4, CH5, CH6, CH7, CH8 and CH9. These 6 power channels provide 12V 1A power supply channels for the unmanned driving system.

[0040] The CAN port of the microcontroller is connected to the CAN transceiver module, and the CAN transceiver module is connected to the external CAN communication network. The CAN network is connected to the CAN to 5G device, which can remotely send control instructions to the microcontroller, and the microcontroller can remotely upload information.

[0041] like Figure 3As shown, a structural appearance of a power supply and control unit for an unmanned driving system includes a power input interface 1, a 12V power module, a 24V power module, a plug-in fuse 4, a status LED indicator 5, a power and signal interface 6, a transparent PVC cover 7, and a heat sink 8. The power input interface 1 is a two-core aviation connector, which is used for power access to a 24V car battery. The 12V power module 2 is a DC-to-DC switching power module with a built-in heat sink 8, which outputs a stable 12V power supply and provides a 12V power supply for the unmanned driving system. The 24V power module 3 is a DC-to-DC switching power module with a built-in heat sink 8, which inputs a stable 24V power supply and provides a 24V power supply for the unmanned driving system. The plug-in fuse 4 is configured according to the maximum power supply current of each channel, with a total of 11 pieces, to provide short-circuit protection for the power supply channel. The plug-in fuse 4 is in the power supply and control unit of the unmanned driving system. At the groove on the top surface, when a short circuit occurs in the power supply channel and the plug-in fuse 4 blows, it is easy to replace. The status LED indicator 5 is configured with one for each channel, a total of 11, which indicates the working status of the channel power supply in real time. The status LED indicator 5 is on, indicating that the power supply channel is open and power is output. The status LED indicator 5 is off, indicating that the power supply channel is closed or the plug-in fuse 4 blows, and there is no power output. The power and signal interface 6 is a 35-core connector, including an ON gear signal, a CAN signal, and power output of 11 independently controllable power supply channels. The transparent PVC cover 7 covers the top of the groove of the plug-in fuse 4 to prevent the plug-in fuse 4 from falling off due to accidental touch. The heat sink 8 is installed on the outside of the structural shell. The microcontroller, common mode inductor, and relay inside the structural shell conduct the heat during operation from the inside of the structural shell to the external heat sink 8, and the heat is naturally dissipated through the heat sink 8.

[0042] Working principle: The utility model can indicate the working status of the channel power supply in real time through the status LED indicator 5. When the status LED indicator 5 is on, it means that the power supply channel is open and the power is output. When the status LED indicator 5 is off, it means that the power supply channel is closed or the plug-in fuse 4 is blown and there is no power output. The power supply and signal interface 6 can control the power output of the power supply channel. The transparent PVC cover 7 can prevent the plug-in fuse 4 from falling off due to accidental touch. The heat sink 8 can conduct the working heat from the structural shell to the external heat sink 8 when the single-chip microcomputer, common mode inductor and relay are working, and the heat sink 8 is naturally dissipated;

[0043] The voltage and current signals of the power supply channel can be monitored in real time through a single chip microcomputer through a variety of power output methods.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An unmanned driving system power supply and control unit, characterized in that: It includes a power input circuit, a 12V power circuit, a 24V power circuit, a 5V power circuit, a single-chip microcomputer, 11 independently controllable power supply channels and a CAN transceiver module. The power input circuit includes a 24V car battery power signal, a fuse, a relay, and an ON gear signal. The 24V car battery power signal is connected to the fuse, the fuse is connected to one end of the normally open contact of the relay, and the other end of the normally open contact of the relay is output. The ON gear signal is connected to the coil of the relay. When the car is powered on, the ON gear signal is powered on, that is, the relay coil is powered on, and the normally open contact of the relay is closed, so that the 24V car battery power signal is output from the closed normally open contact of the relay.

2. The unmanned driving system power supply and control unit according to claim 1, characterized in that: The power input circuit outputs the same voltage as the 24V car battery through a common-mode inductor, providing a wide-voltage power supply for the unmanned driving system.

3. The unmanned driving system power supply and control unit according to claim 1, characterized in that: The 12V power supply circuit is composed of a power supply input circuit output, a common mode inductor, and a 12V power supply module (2), and outputs a stable 12V voltage to provide a 12V power supply for the unmanned driving system.

4. The unmanned driving system power supply and control unit according to claim 1, characterized in that: The 24V power supply circuit is composed of a power supply input circuit output, a common mode inductor, and a 24V power supply module (3), which outputs a stable 24V voltage to provide a 24V power supply for the unmanned driving system.

5. The unmanned driving system power supply and control unit according to claim 1, characterized in that: The 11 independently controllable power supply channels realize three power supplies: the first power supply is a wide voltage power supply with the same voltage as a 24V car battery voltage, providing 2 independently controllable power supply channels and outputting a 10A wide voltage power supply; the second power supply is a 24V power supply with a stable output of 24V, providing 2 independently controllable power supply channels and outputting a 4A24V power supply; the third power supply is a 12V power supply with a stable output of 12V, providing 7 independently controllable power supply channels, providing 1 12V 15A power supply channel, and providing 6 12V 2A power supply channels.

6. The unmanned driving system power supply and control unit according to claim 1, characterized in that: The 11 independently controllable power supply channels, each of which comprises a switch output circuit, a plug-in fuse (4), a status LED indicator light (5), a voltage detection circuit and a current detection circuit.

7. The unmanned driving system power supply and control unit according to claim 6, characterized in that: The plug-in fuses (4) are configured according to the maximum power supply current of each channel, with a total of 11 pieces, to provide short-circuit protection for the power supply channel. The plug-in fuses (4) are located in the groove on the top surface of the power supply and control unit of the unmanned driving system. When a short circuit occurs in the power supply channel, the plug-in fuses (4) are blown, which is convenient for replacement.

8. The unmanned driving system power supply and control unit according to claim 1, characterized in that: The CAN transceiver module is connected to the CAN port of the single-chip microcomputer. The transceiver module is connected to the outside through the CAN network, thereby establishing a communication channel between the single-chip microcomputer and the outside. The CAN to 5G device is connected to the CAN network, which can remotely send control instructions to the single-chip microcomputer, and the single-chip microcomputer can remotely upload information.

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