Windows system protection circuit

Abstract

The utility model discloses a protection circuit for a windows system, which relates to the field of electronic information and comprises a power supply circuit, a CPU (central processing unit) circuit, a power supply circuit, a control circuit, a control circuit and a control circuit, and is characterized in that the power supply circuit is used for outputting 3.3 V direct current to serve as a working power supply of the CPU circuit; the CPU circuit communicates with the windows mainboard through the communication circuit and judges whether the windows mainboard works or not through the heartbeat packet transmitted by the communication circuit so as to control whether the power supply control circuit supplies power to the windows mainboard or not; the power supply control circuit is used for selecting to close or open a power supply loop of the windows mainboard; the system has the advantages that the CPU circuit obtains a heartbeat packet protocol of the windows mainboard through the communication circuit to judge whether the windows mainboard is normally started or not, and if no heartbeat exists, the power supply control circuit is used for powering off and restarting the windows mainboard to ensure that the system can be normally started.

Description

Technical Field

[0001] The utility model relates to the field of electronic information, and specifically relates to a protection circuit for the Windows system. Background Art

[0002] The intelligent analysis host can accurately identify the abnormal state of the pantograph and give prompts. The abnormal prompts are divided into two categories: early warning and alarm according to the severity of the fault. Early warning: large spark, dirty screen and worn carbon slide to the limit; Alarm: pantograph tilt, abnormal pantograph structure, hanging foreign objects, inconsistent lifting and lowering pantograph states. The analysis board can give a pop-up prompt for different types of pre-alarm / alarm information, and automatically save the video information 1 minute before and 1 minute before and after the fault. When a high-voltage fault (from the monitoring screen) occurs in the vehicle, the analysis board records the video 1 minute before and 1 minute before and after the fault moment, and pushes it to the intelligent monitoring screen for video linkage. The generation time of the 1-minute video is not more than 5 seconds, and the generation time of the 1-minute video before and after is not more than 65 seconds.

[0003] The intelligent analysis host uses the Windows system, which has poor stability in industrial applications. There will be frequent sudden power outages and sudden power ons in the on-site environment, which will cause the system to fail to start, resulting in the equipment being paralyzed and unable to be used normally, and improvement is needed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a protection circuit for the Windows system to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A protection circuit for the Windows system, comprising:

[0007] A power supply circuit for outputting 3.3V direct current as the working power supply of the CPU circuit;

[0008] The CPU circuit communicates with the Windows motherboard through the communication circuit, and judges whether the Windows motherboard is working through the heartbeat packet transmitted through the communication circuit, so as to control whether the power control circuit supplies power to the Windows motherboard;

[0009] The power control circuit is used to receive the control of the CPU circuit to select to close or disconnect the power supply circuit of the Windows motherboard;

[0010] The power supply circuit is connected to the CPU circuit, the CPU circuit is connected to the Windows motherboard through the communication circuit, and the CPU circuit is connected to the power control circuit.

[0011] As a further solution of the present utility model: The power supply circuit includes a chip U4, and the model of the chip U4 is TPS5430DDAR. A 24V voltage is introduced into the 7th pin of the chip U4. The 1st pin of the chip U4 is connected to a capacitor C17, and the other end of the capacitor C17 is connected to the 8th pin of the chip U4 and one end of an inductor L1. The other end of the inductor L1 is connected to one end of a resistor R22, one end of a capacitor C18, one end of a capacitor C20, and one end of a capacitor C21. The other end of the resistor R22 is connected to one end of a resistor R24 and the 4th pin of the chip U4. The other end of the resistor R24 is grounded. The other end of the capacitor C18 is grounded. The other end of the capacitor C20 is grounded. The other end of the capacitor C21 is grounded.

[0012] As a further solution of the present utility model: The CPU circuit includes a chip U1, and the model of the chip U1 is STM32F103RDT6. A 3.3V voltage is introduced into the 64th pin of the chip U1. The 42nd and 43rd pins of the chip U1 are connected to the communication circuit. The 29th pin of the chip U1 is connected to the power supply control circuit.

[0013] As a further solution of the present utility model: The communication circuit includes a chip U2, and the model of the chip U2 is SP3232EEN. The 11th pin of the chip U2 is connected to the CPU circuit through a resistor R14. The 12th pin of the chip U2 is connected to the CPU circuit through a resistor R17. The 13th pin of the chip U2 is connected to the windows main board through a resistor R18. The 14th pin of the chip U2 is connected to the windows main board through a resistor R15.

[0014] As a further solution of the present utility model: The power supply control circuit includes a triode Q9 and a relay SW11. The base of the triode Q9 is connected to the CPU circuit through a resistor R266. The emitter of the triode Q9 is grounded. The collector of the triode Q9 is connected to the fifth terminal of the relay SW11. The second terminal of the relay SW11 is connected to a 24V voltage. The first terminal of the relay SW11 is connected to a 24V voltage. The fourth terminal of the relay SW11 is left floating. The third terminal of the relay SW11 is connected to the windows main board.

[0015] Compared with the prior art, the beneficial effect of the present utility model is: In the present utility model, the CPU circuit obtains the heartbeat packet protocol of the windows main board through the communication circuit to determine whether the windows main board starts normally. If there is no heartbeat, the power supply control circuit cuts off the power supply of the windows main board and restarts it, ensuring that the system can start normally. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of a protection circuit for a windows system.

[0017] Figure 2It is a circuit diagram of a power supply circuit.

[0018] Figure 3 It is a circuit diagram of a CPU circuit.

[0019] Figure 4 It is a circuit diagram of a communication circuit.

[0020] Figure 5 It is a circuit diagram of a power supply control circuit. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1 , a Windows system protection circuit, including:

[0023] A power supply circuit for outputting 3.3V direct current as the working power supply of the CPU circuit;

[0024] The CPU circuit communicates with the Windows motherboard through the communication circuit, and judges whether the Windows motherboard is working by the heartbeat packet transmitted through the communication circuit, so as to control whether the power supply control circuit supplies power to the Windows motherboard;

[0025] The power supply control circuit is used to receive the control of the CPU circuit to select to close or disconnect the power supply loop of the Windows motherboard;

[0026] The power supply circuit is connected to the CPU circuit, the CPU circuit is connected to the Windows motherboard through the communication circuit, and the CPU circuit is connected to the power supply control circuit.

[0027] In this embodiment: Please refer to Figure 2 , the power supply circuit includes a chip U4, the model of the chip U4 is TPS5430DDAR, a 24V voltage is introduced into the 7th pin of the chip U4, the 1st pin of the chip U4 is connected to the capacitor C17, the other end of the capacitor C17 is connected to the 8th pin of the chip U4 and one end of the inductor L1, the other end of the inductor L1 is connected to one end of the resistor R22, one end of the capacitor C18, one end of the capacitor C20, and one end of the capacitor C21, the other end of the resistor R22 is connected to one end of the resistor R24 and the 4th pin of the chip U4, the other end of the resistor R24 is grounded, the other end of the capacitor C18 is grounded, the other end of the capacitor C20 is grounded, and the other end of the capacitor C21 is grounded.

[0028] The chip U4 is a voltage conversion device that outputs a stable 3.3V voltage to supply the subsequent circuit.

[0029] In this embodiment: Please refer to Figure 3 , the CPU circuit includes the chip U1. The model of the chip U1 is STM32F103RDT6. The 64th pin of the chip U1 introduces a 3.3V voltage. The 42nd and 43rd pins of the chip U1 are connected to the communication circuit. The 29th pin of the chip U1 is connected to the power control circuit.

[0030] The 42nd and 43rd pins of the chip U1 are used to receive the transmitted data. The heartbeat packet transmitted through the communication circuit is used to determine whether the windows motherboard is working (determining whether the corresponding device is working through the heartbeat packet is a common technology and does not involve the innovation of the method. The heartbeat packet is used to determine whether the device, process, or others are running normally. By periodically sending a simple communication packet, if no response from the other party is received within the specified time period, it is determined that the other party has gone offline or malfunctioned). When it is not working, it will control the power control circuit through the 29th pin to disconnect the power supply circuit of the windows motherboard.

[0031] In this embodiment: Please refer to Figure 4 , the communication circuit includes the chip U2. The model of the chip U2 is SP3232EEN. The 11th pin of the chip U2 is connected to the CPU circuit through the resistor R14. The 12th pin of the chip U2 is connected to the CPU circuit through the resistor R17. The 13th pin of the chip U2 is connected to the windows motherboard through the resistor R18. The 14th pin of the chip U2 is connected to the windows motherboard through the resistor R15.

[0032] The SP3232EEN is used as a communication chip to establish the communication between the CPU circuit and the windows motherboard, facilitating the CPU circuit to read the heartbeat packet.

[0033] In this embodiment: Please refer to Figure 5 , the power control circuit includes the triode Q9 and the relay SW11. The base of the triode Q9 is connected to the CPU circuit through the resistor R266. The emitter of the triode Q9 is grounded. The collector of the triode Q9 is connected to the fifth terminal of the relay SW11. The second terminal of the relay SW11 is connected to the 24V voltage. The first terminal of the relay SW11 is connected to the 24V voltage. The fourth terminal of the relay SW11 is left floating. The third terminal of the relay SW11 is connected to the windows motherboard.

[0034] The output voltage signal of the CPU circuit is supplied to the base of the triode Q9 through the resistor R266. When the voltage signal is at a high level, the triode Q9 conducts, and the second and fifth terminals of the relay SW11 are powered on to work, controlling the connection of the first terminal of the relay SW11 to the fourth terminal to be changed to the connection of the first terminal to the third terminal. The 24V voltage supplies power to the windows main board through the first and third terminals of the relay SW11; conversely, when the voltage signal is at a low level, the triode Q9 is cut off, and the second and fifth terminals of the relay SW11 do not work, and the connection of the first terminal of the relay SW11 to the third terminal is changed to the connection of the first terminal to the fourth terminal.

[0035] The working principle of the present invention is as follows: The power supply circuit is used to output 3.3V direct current as the working power supply of the CPU circuit; the CPU circuit communicates with the windows main board through the communication circuit, and judges whether the windows main board is working by the heartbeat packet transmitted through the communication circuit, so as to control whether the power supply control circuit supplies power to the windows main board; the power supply control circuit is used to receive the control of the CPU circuit to select to close or disconnect the power supply loop of the windows main board.

[0036] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive.

[0037] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A windows system protection circuit, characterized in that: The windows system protection circuit includes: The power supply circuit is used to output 3.3V DC as the working power supply of the CPU circuit; The CPU circuit communicates with the Windows mainboard through the communication circuit, and determines whether the Windows mainboard is working through the heartbeat packet transmitted by the communication circuit, so as to control whether the power control circuit supplies power to the Windows mainboard; The power control circuit is used to accept the control of the CPU circuit to select closing or disconnecting the power supply circuit of the Windows motherboard; The power circuit is connected to the CPU circuit, the CPU circuit is connected to the windows mainboard via the communication circuit, and the CPU circuit is connected to the power control circuit.

2. The windows system protection circuit according to claim 1, characterized in that: The power supply circuit includes chip U4, the model of chip U4 is TPS5430DDAR, pin 7 of chip U4 introduces 24V voltage, pin 1 of chip U4 is connected to capacitor C17, the other end of capacitor C17 is connected to pin 8 of chip U4 and one end of inductor L1, the other end of inductor L1 is connected to one end of resistor R22, one end of capacitor C18, one end of capacitor C20, and one end of capacitor C21, the other end of resistor R22 is connected to one end of resistor R24 ​​and pin 4 of chip U4, the other end of resistor R24 ​​is grounded, the other end of capacitor C18 is grounded, the other end of capacitor C20 is grounded, and the other end of capacitor C21 is grounded.

3. The windows system protection circuit according to claim 1, characterized in that: The CPU circuit includes a chip U1. The model of the chip U1 is STM32F103RDT6. Pin 64 of the chip U1 introduces a 3.3V voltage. Pins 42 and 43 of the chip U1 are connected to a communication circuit. Pin 29 of the chip U1 is connected to a power control circuit.

4. The windows system protection circuit according to claim 1 or 3, characterized in that: The communication circuit includes chip U2, the model of chip U2 is SP3232EEN, pin 11 of chip U2 is connected to the CPU circuit through resistor R14, pin 12 of chip U2 is connected to the CPU circuit through resistor R17, pin 13 of chip U2 is connected to the windows motherboard through resistor R18, and pin 14 of chip U2 is connected to the windows motherboard through resistor R15.

5. The windows system protection circuit according to claim 1 or 3, characterized in that: The power control circuit includes a transistor Q9 and a relay SW11. The base of the transistor Q9 is connected to the CPU circuit through a resistor R266. The emitter of the transistor Q9 is grounded. The collector of the transistor Q9 is connected to the fifth end of the relay SW11. The second end of the relay SW11 is connected to a 24V voltage. The first end of the relay SW11 is connected to a 24V voltage. The fourth end of the relay SW11 is suspended. The third end of the relay SW11 is connected to the Windows motherboard.

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