A vehicle master chip-based safe wake-up system and method

Abstract

The application discloses a kind of safety wake-up systems and methods based on vehicle master chip.The system includes: vehicle master chip, wake-up circuit module and power supply module;The vehicle master chip is respectively connected with the wake-up circuit module and the power supply module electrically;The wake-up circuit is electrically connected with the wake-up source of different voltage types;The wake-up circuit module receives the initial wake-up signal generated by the wake-up source of different voltage types, and the initial wake-up signal is converted into the target wake-up signal of the wake-up port in the vehicle master chip;The vehicle master chip controls the power supply module to supply power to the control module in the vehicle master chip according to the target wake-up signal.The application converts the initial wake-up signal, ensures that the wake-up of the vehicle master chip is not limited by the influence of the wake-up source input voltage type, and improves the safety and reliability of the wake-up circuit.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the field of vehicle control, in particular to a safe wake-up system and method based on a vehicle master control chip. BACKGROUND

[0002] With the rapid development of domestic automobile chips, more and more domestic SoC / MCU (system on chip / micro control unit) chips are applied to vehicle domain controller units.

[0003] However, the normal work of the domain controller unit cannot be separated from the high safety and reliability of the wake-up circuit. In the prior art, in the wake-up circuit design part, a wake-up port for detecting multiple wake-up sources is usually set to solve the problem that the traditional wake-up mode cannot identify the corresponding wake-up source when multiple wake-up sources are present.

[0004] However, the above scheme relies on the design of multiple ports for wake-up source detection, which causes a certain burden to the wake-up circuit, and cannot consider a series of problems such as excessive input voltage and leakage caused by multiple wake-up sources. SUMMARY

[0005] The present application provides a safe wake-up system and method based on a vehicle master control chip to ensure that the wake-up of the vehicle master control chip is not limited by the input voltage type of the wake-up source, and improves the safety and reliability of the wake-up circuit.

[0006] According to an aspect of the present application, a safe wake-up system based on a vehicle master control chip is provided, the system comprising: a vehicle master control chip, a wake-up circuit module and a power supply module; the vehicle master control chip is electrically connected with the wake-up circuit module and the power supply module respectively; the wake-up circuit is electrically connected with wake-up sources of different voltage types;

[0007] The wake-up circuit module receives an initial wake-up signal generated by the wake-up source of different voltage types, and converts the initial wake-up signal into a target wake-up signal of a wake-up port in the vehicle master control chip;

[0008] The vehicle master control chip controls the power supply module to supply power to the control module in the vehicle master control chip according to the target wake-up signal.

[0009] According to another aspect of the present application, a vehicle is provided, wherein any one of the safe wake-up systems of the vehicle master control chip provided by the embodiment of the present application is arranged in the vehicle.

[0010] According to another aspect of the present application, a vehicle master chip-based secure wake-up method is provided, which is applied to any one of the vehicle master chip-based secure wake-up systems provided by the embodiments of the present application, and comprises a vehicle master chip, a wake-up circuit module and a power supply module; the vehicle master chip is electrically connected with the wake-up circuit module and the power supply module respectively; the wake-up circuit is electrically connected with wake-up sources of different voltage types; the wake-up circuit module receives initial wake-up signals generated by the wake-up sources of different voltage types, and converts the initial wake-up signals into target wake-up signals of a wake-up port in the vehicle master chip; and the vehicle master chip controls the power supply module to supply power to a control module in the vehicle master chip according to the target wake-up signals.

[0011] The wake-up circuit module receives initial wake-up signals generated by the wake-up sources of different voltage types, and converts the initial wake-up signals into target wake-up signals of a wake-up port in the vehicle master chip.

[0012] The vehicle master chip controls the power supply module to supply power to a control module in the vehicle master chip according to the target wake-up signals.

[0013] The vehicle master chip-based secure wake-up system provided by the embodiments of the present application comprises a vehicle master chip, a wake-up circuit module and a power supply module; the vehicle master chip is electrically connected with the wake-up circuit module and the power supply module respectively; the wake-up circuit is electrically connected with wake-up sources of different voltage types; the wake-up circuit module receives initial wake-up signals generated by the wake-up sources of different voltage types, and converts the initial wake-up signals into target wake-up signals of a wake-up port in the vehicle master chip; and the vehicle master chip controls the power supply module to supply power to a control module in the vehicle master chip according to the target wake-up signals. The embodiments of the present application convert the initial wake-up signals generated by the wake-up sources of different voltage types, so that the vehicle master chip is not limited by the input voltage types of the wake-up sources, and the safety and reliability of the wake-up circuit are improved.

[0014] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural block diagram of the vehicle master chip-based secure wake-up system provided by the embodiments of the present application;

[0016] Figure 2 is a specific structural block diagram of a wake-up circuit module provided by the embodiments of the present application;

[0017] Figure 3 is a specific structural block diagram of an input module provided by the embodiments of the present application;

[0018] Figure 4 is a specific structural block diagram of a conversion module provided by the embodiments of the present application;

[0019] Figure 5 is a specific structure block diagram of the safety wake-up system based on the vehicle master control chip provided by the embodiment of the present application;

[0020] Figure 6 is a flow chart of the safety wake-up method based on the vehicle master control chip provided by the embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to enable personnel in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0023] Figure 1 The structure block diagram of the safety wake-up system based on the vehicle master control chip provided by the embodiment of the present application can be applied to the safety wake-up of the vehicle chip. Referring to Figure 1 The safety wake-up system based on the vehicle master control chip in the embodiment of the present application can include a vehicle master control chip 10, a wake-up circuit module 20 and a power supply module 30; the vehicle master control chip 10 is electrically connected with the wake-up circuit module 20 and the power supply module 30 respectively; the wake-up circuit module 20 is electrically connected with wake-up sources of different voltage types;

[0024] The wake-up circuit module 20 is used for receiving an initial wake-up signal generated by the wake-up source of different voltage types, and converting the initial wake-up signal into a target wake-up signal of a wake-up port in the vehicle master control chip 10.

[0025] The wake-up source is a signal for waking up a dormant device, and after the device is dormant, the device can be restored to a normal working state by triggering the wake-up source. Optionally, the source of the wake-up source can include the following two kinds: the wake-up source originates from the self module, and the wake-up source is used for local wake-up, and an exemplary wake-up source can be a KL15 (Klemme 15, engine ignition signal) hard-wire wake-up; the wake-up source originates from a network message of a node of the self ECU (Electronic Control Unit), and the node can be in a complete dormant state and generally has no static electricity consumption, and the wake-up source is used for remote wake-up.

[0026] Since the voltage amplitude that can be borne by the wake-up port in the vehicle master control chip 10 is limited, when the input voltage amplitude span of the wake-up source of different voltage types is large, the chip is easily damaged irreversibly. Therefore, when the initial wake-up signal is received, the wake-up source of different voltage types in the initial wake-up signal needs to be converted into a voltage type matched with the wake-up port in the vehicle master control chip 10, the converted initial wake-up signal is taken as a target wake-up signal, and the target wake-up signal is sent to the vehicle master control chip 10.

[0027] The vehicle master control chip 10 is used for controlling the power supply module 30 to supply power to the control module in the vehicle master control chip 10 according to the target wake-up signal.

[0028] Optionally, after the vehicle master control chip 10 receives the target wake-up signal, the vehicle master control chip 10 generates a power supply signal corresponding to the target wake-up signal according to the target wake-up signal, and sends the power supply signal to the power supply module 30; and the power supply module 30 supplies power to the control module in the vehicle master control chip 10 according to the power supply signal.

[0029] In the embodiment of the application, the wake-up circuit module 20 is used for receiving the initial wake-up signal generated by the wake-up source of different voltage types, and converting the initial wake-up signal into the target wake-up signal of the wake-up port in the vehicle master control chip 10; and the vehicle master control chip 10 controls the power supply module 30 to supply power to the control module in the vehicle master control chip 10 according to the target wake-up signal. By converting the initial wake-up signal, it is ensured that the vehicle master control chip is not limited by the input voltage type of the wake-up source, and the safety and reliability of the wake-up circuit are improved.

[0030] Optionally, referring to Figure 2 , the wake-up circuit module 20 includes an input module 210 and a conversion module 220; the input module 210 is electrically connected with the wake-up source of different voltage types; and the conversion module 220 is electrically connected with the wake-up port of the vehicle master control chip 10.

[0031] The input module 210 obtains the wake-up source of different voltage types in the initial wake-up signal, and sends the initial wake-up signal to the conversion module 220.

[0032] The conversion module 220 converts the initial wake-up signal input by the input module into a target wake-up signal.

[0033] Optionally, referring to Figure 3 The input module 210 comprises a first input unit, a second input unit and a wake-up type conversion unit. The first input unit is provided with at least one input end, which is electrically connected with the wake-up source of different voltage types respectively, for receiving the initial wake-up signal of the first wake-up type. The wake-up type conversion unit is electrically connected with the output end of the first input unit, for converting the initial wake-up signal of the first wake-up type into the initial wake-up signal of the second wake-up type. The second input unit is provided with an input end, which is electrically connected with the wake-up source of different voltage types, for receiving the initial wake-up signal of the second wake-up type output by each wake-up source. In addition, the second input unit is also provided with an input end, which is electrically connected with the output end of the first input unit, for receiving the initial wake-up signal of the second wake-up type output by the first input unit. The output end of the second input unit is electrically connected with the input end of the conversion module 220.

[0034] The initial wake-up signal is generated by the wake-up source of different voltage types. Since the wake-up sources are different, the types of the initial wake-up signals generated are also different. Optionally, the types of the initial wake-up signals are divided into the first wake-up type and the second wake-up type. For example, the types of the initial wake-up signals can comprise at least one of the low-effective wake-up type and the high-effective wake-up type. According to the actual situation, the first wake-up type can be determined as the low-effective wake-up type, and the second wake-up type can be determined as the high-effective wake-up type. The present application does not make any limitation in this regard.

[0035] For example, if the initial wake-up signal is only the high-effective wake-up type, the second wake-up type is determined as the high-effective wake-up type, the initial wake-up signal of the second wake-up type is received by the second input unit, and the initial wake-up signal is sent to the conversion module 220. If the initial wake-up signal is only the low-effective wake-up type, the second wake-up type is determined as the low-effective wake-up type, the initial wake-up signal of the second wake-up type is received by the second input unit, and the initial wake-up signal is sent to the conversion module 220. If the initial wake-up signal comprises the high-effective wake-up type and the low-effective wake-up type, the first wake-up type is determined as the low-effective wake-up type, and the second wake-up type is determined as the high-effective wake-up type. The initial wake-up signal of the first wake-up type is received by the first input unit, and the initial wake-up signal of the first wake-up type is sent to the wake-up type conversion unit. The initial wake-up signal of the first wake-up type is converted into the initial wake-up signal of the second wake-up type by the wake-up type conversion unit, and is sent to the second input unit. The initial wake-up signal of the second wake-up type output by the wake-up type unit and the initial wake-up signal of the second wake-up type output by each wake-up source are received by the second input unit, and are sent to the conversion module 220.

[0036] Optionally, continuing to refer to Figure 3 , at least one first diode is arranged in the first input unit; the cathode of each first diode is electrically connected to the output end of the wakeup source of different voltage type as the input end of the first input unit; the anode of each first diode is electrically connected to the input end of the wakeup type conversion unit.

[0037] Exemplarily, D1-Dm are first diodes, where m is the number of first diodes; each first diode is reversely connected, with the cathode as the input end and the anode as the output end; through the reverse connection of each first diode, the input of the wakeup signal of the first wakeup type is subjected to the logical AND in the circuit; when the wakeup source in the wakeup signal of the first wakeup type is low effective, the control transistor is turned on to convert the low effective wakeup source into a high effective wakeup source and send it to the second input unit.

[0038] Optionally, continuing to refer to Figure 3 , a second diode and at least one third diode are arranged in the second input unit; the anode of the second diode is electrically connected to the output end of the wakeup type conversion unit as the input end of the second input unit; the anode of each third diode is electrically connected to the output end of the wakeup source of different voltage type as the input end of the second input unit; the cathode of the second diode and the cathode of each third diode are electrically connected to the input end of the conversion module as the output end of the second input unit.

[0039] Exemplarily, T1 is a second diode and T2-Tn are third diodes, where n is the total number of the second diode and the third diode, and n-1 is the number of third diodes; the second diode and each third diode are forward connected, with the anode as the input end and the cathode as the output end; through the forward connection of the second diode and each third diode, the input of the wakeup signal of the second wakeup type is subjected to the logical OR in the circuit; when all the wakeup sources in the wakeup signal of the second wakeup type are high effective, the control transistor is turned on to send the wakeup signal of the second wakeup type to the conversion module 220.

[0040] Optionally, continuing to refer to Figure 3 , the wakeup type conversion unit is a PNP transistor; the base of the PNP transistor is electrically connected to the output end of the first input unit; the emitter of the PNP transistor is electrically connected to the anode of the second diode.

[0041] Exemplarily, by electrically connecting the base of the PNP transistor to the output end of the first input unit and connecting the emitter to the anode of the second diode, a high-low level conversion circuit is designed; the low effective wakeup source is output from the first input unit to the PNP transistor, converted into a high effective wakeup source by the PNP transistor, and output to the anode of the second diode.

[0042] Optionally, referring to Figure 4 , the conversion module 220 comprises a first conversion unit, a second conversion unit and an output unit; the first conversion unit is electrically connected with the output end of the second input unit, for converting the initial wake-up signal of the second wake-up type output by the second output unit into the initial wake-up signal of the first wake-up type; the second conversion unit is electrically connected with the output end of the first conversion unit, for converting the initial wake-up signal of the first wake-up type output by the first conversion unit into the target wake-up signal; the input end of the output unit is electrically connected with the output end of the second conversion unit, for receiving the target wake-up signal; and the output end of the output unit is electrically connected with the wake-up port of the vehicle master control chip.

[0043] Optionally, continuing to refer to Figure 4 , the first conversion unit is an NPN transistor with built-in bias resistors R1 and R2; the second conversion unit is a PNP transistor with built-in bias resistors R3 and R4; and the output unit comprises a filter capacitor C1. Wherein, the bias resistors are used to ensure the minimum base current of the transistor to produce its saturation working state; and the filter capacitor is used to filter the target wake-up signal.

[0044] Illustratively, by electrically connecting the base of the NPN transistor with the output end of the second input unit, and connecting the emitter with the input end of the second conversion unit, a high-low level conversion circuit is designed, by which the second input unit outputs the high active wake-up source to the NPN transistor, which is converted into a low active wake-up source via the NPN transistor, and sent to the output unit.

[0045] Illustratively, if the initial wake-up signal of the second wake-up type is a high active wake-up source type, when the first conversion unit receives the initial wake-up signal of the second wake-up type, it converts the initial wake-up signal of the second wake-up type into an initial wake-up signal of a low active wake-up source type, and sends it to the second conversion unit, which converts the initial wake-up signal of the low active wake-up source type into a target wake-up signal corresponding to the wake-up port of the vehicle master control chip 10, and sends it to the output unit, which filters the target wake-up signal via the filter capacitor, and sends the processed target wake-up signal to the wake-up port of the vehicle master control chip 10.

[0046] Optionally, referring to Figure 5 , the vehicle master control chip 10 further comprises a monitoring module; the monitoring port of the monitoring module is electrically connected with the wake-up source of different voltage types, for monitoring the voltage type of the initial wake-up signal output by the corresponding wake-up source; and the vehicle master control chip controls the power supply module to provide the voltage type of the power signal to the control module in the vehicle master control chip according to the target wake-up signal.

[0047] The voltage type of the initial wake-up signal refers to the type of the wake-up source in the initial wake-up signal, which can be CAN (Controller Area Network) message wake-up or KL15 hard-wire wake-up, and the type of the wake-up source is determined according to specific conditions, and the embodiments of the present application do not make any limitation on this.

[0048] The voltage type of the initial wake-up signal is judged by the monitoring module, and the power supply signal corresponding to the voltage type is provided, so that the corresponding wake-up source can be accurately identified, and the efficiency of the wake-up of the main control chip is improved.

[0049] Based on the same inventive concept, the present application also provides a vehicle, wherein any one of the safety wake-up systems of the vehicle main control chip provided by the embodiments of the present application is arranged.

[0050] Based on the same inventive concept, a safety wake-up method based on a vehicle main control chip is provided, which is applied to any one of the safety wake-up systems of the vehicle main control chip provided by the embodiments of the present application, Figure 6 is a flowchart of the safety wake-up method based on the vehicle main control chip provided by the embodiments of the present application. It should be noted that the parts not described in detail in the embodiments of the present application can be referred to the related descriptions of other embodiments. As shown in the figure, Figure 6 the safety wake-up method based on the vehicle main control chip includes:

[0051] S110, receiving, by the wake-up circuit module, the initial wake-up signal generated by the wake-up source of different voltage types, and converting the initial wake-up signal into the target wake-up signal of the wake-up port in the vehicle main control chip.

[0052] S120, controlling, by the vehicle main control chip, the power supply module to supply power to the control module in the vehicle main control chip according to the target wake-up signal.

[0053] Only the initial wake-up signal is converted, which ensures that the wake-up of the vehicle main control chip is not limited by the input voltage type of the wake-up source, but the type of the wake-up signal cannot be accurately powered to the vehicle main control chip, which is easy to cause irreversible damage to the chip. Optionally, the voltage type of the initial wake-up signal output by the corresponding wake-up source is monitored by the monitoring module in the vehicle main control chip; the power supply module in the vehicle main control chip is controlled to provide the power supply signal of the voltage type to the control module in the vehicle main control chip according to the target wake-up signal.

[0054] Note that the above merely describes preferred embodiments of the present application and the principles of the technology applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, modifications and substitutions can be made without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A secure wake-up system based on a vehicle main control chip, characterized in that, include: The vehicle main control chip, wake-up circuit module, and power supply module are included; the vehicle main control chip is electrically connected to the wake-up circuit module and the power supply module respectively; the wake-up circuit module is electrically connected to wake-up sources of different voltage types. The wake-up circuit module receives initial wake-up signals generated by wake-up sources of different voltage types and converts the initial wake-up signals into target wake-up signals for the wake-up port in the vehicle's main control chip; wherein, the initial wake-up signals include low-active-wake-up type and high-active-wake-up type; The vehicle main control chip controls the power supply module to supply power to the control module in the vehicle main control chip according to the target wake-up signal; The wake-up circuit module includes an input module and a conversion module; the input module is electrically connected to wake-up sources of different voltage types; the conversion module is electrically connected to the wake-up port of the vehicle's main control chip. The conversion module converts the initial wake-up signal input by the input module into the target wake-up signal; The input module includes a first input unit, a second input unit, and a wake-up type conversion unit; The first input unit is provided with at least one input terminal, which is electrically connected to wake-up sources of different voltage types, and is used to receive the initial wake-up signal of the first wake-up type; The wake-up type conversion unit is electrically connected to the output terminal of the first input unit and is used to convert the initial wake-up signal of the first wake-up type into the initial wake-up signal of the second wake-up type. The second input unit is provided with an input terminal electrically connected to wake-up sources of different voltage types, for receiving the initial wake-up signal of the second wake-up type output by each wake-up source; and, The second input unit is further provided with an input terminal electrically connected to the output terminal of the first input unit, for receiving the initial wake-up signal of the second wake-up type output by the first input unit; The output terminal of the second input unit is electrically connected to the input terminal of the conversion module.

2. The system according to claim 1, characterized in that, The first input unit is provided with at least one first diode; The cathode of each of the first diodes serves as the input terminal of the first input unit and is electrically connected to the output terminal of a wake-up source of different voltage types, respectively. The anode of each of the first diodes is electrically connected to the input terminal of the wake-up type conversion unit.

3. The system according to claim 1, characterized in that, The second input unit is provided with a second diode and at least one third diode; The anode of the second diode serves as the input terminal of the second input unit and is electrically connected to the output terminal of the wake-up type conversion unit; The anode of each of the third diodes serves as the input terminal of the second input unit and is electrically connected to the output terminal of a wake-up source of different voltage types, respectively. The cathodes of the second diode and each of the third diodes serve as the output terminals of the second input unit and are electrically connected to the input terminal of the conversion module.

4. The system according to claim 3, characterized in that, The wake-up type conversion unit is a PNP transistor; The base of the PNP transistor is electrically connected to the output terminal of the first input unit; The emitter of the PNP transistor is electrically connected to the anode of the second diode of the conversion module.

5. The system according to claim 1, characterized in that, The conversion module includes a first conversion unit, a second conversion unit, and an output unit; The first conversion unit is electrically connected to the output terminal of the second input unit, and is used to convert the initial wake-up signal of the second wake-up type output by the second input unit into the initial wake-up signal of the first wake-up type; The second conversion unit is electrically connected to the output terminal of the first conversion unit and is used to convert the initial wake-up signal of the first wake-up type output by the first conversion unit into the target wake-up signal; The output unit is connected in series between the output terminal of the second conversion unit and the wake-up port of the vehicle main control chip, and is used to transmit the target wake-up signal.

6. The system according to any one of claims 1-5, characterized in that, The vehicle main control chip also includes a monitoring module; The monitoring port of the monitoring module is electrically connected to wake-up sources of different voltage types, and is used to monitor the voltage type of the initial wake-up signal output by the corresponding wake-up source; The vehicle main control chip controls the power supply module to provide a power signal of the voltage type to the control module in the vehicle main control chip according to the target wake-up signal.

7. A vehicle, characterized in that, The vehicle is equipped with a secure wake-up system for the vehicle main control chip as described in any one of claims 1-6.

8. A secure wake-up method based on a vehicle main control chip, characterized in that, A secure wake-up system based on a vehicle main control chip, applicable to any one of claims 1-6, comprises: a vehicle main control chip, a wake-up circuit module, and a power supply module; the vehicle main control chip is electrically connected to the wake-up circuit module and the power supply module respectively; the wake-up circuit is electrically connected to wake-up sources of different voltage types; the wake-up circuit module includes an input module and a conversion module; the input module is electrically connected to wake-up sources of different voltage types; the conversion module is electrically connected to the wake-up port of the vehicle main control chip; the input module includes a first input unit, a second input unit, and a wake-up type conversion unit; the output terminal of the second input unit is electrically connected to the input terminal of the conversion module; The wake-up circuit module receives initial wake-up signals generated by wake-up sources of different voltage types and converts the initial wake-up signals into target wake-up signals for the wake-up port in the vehicle's main control chip; wherein, the type of the initial wake-up signal includes low-active-wake-up type and high-active-wake-up type; The vehicle main control chip controls the power supply module to supply power to the control module in the vehicle main control chip according to the target wake-up signal. The process of converting the initial wake-up signal into a target wake-up signal for the wake-up port of the vehicle's main control chip via the wake-up circuit module includes: The conversion module converts the initial wake-up signal input from the input module into the target wake-up signal. The wake-up circuit module receives initial wake-up signals generated by wake-up sources of different voltage types, including: The first input unit is electrically connected to a wake-up source of different voltage types through at least one input terminal, and receives the initial wake-up signal of the first wake-up type. The wake-up type conversion unit is electrically connected to the output terminal of the first input unit to convert the initial wake-up signal of the first wake-up type into the initial wake-up signal of the second wake-up type. The second input unit receives initial wake-up signals of the second wake-up type output by each wake-up source through input terminals electrically connected to wake-up sources of different voltage types; and... The second input unit receives the initial wake-up signal of the second wake-up type output by the first input unit through the input terminal that is electrically connected to the output terminal of the first input unit.

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