CN117170945A - Device and method for detecting working state of display card - Google Patents

Abstract

The invention provides a device and a method for detecting the working state of a display card, which are characterized in that a detection circuit, an interrupt circuit and a processor are arranged, the detection circuit is utilized to detect external voltage during power-on, corresponding detection voltage is obtained, the processor analyzes the detection voltage, and the working state of the display card is recorded according to corresponding analysis results; the interrupt circuit enables the processor to rapidly stop recording the working state of the display card when power is lost, saves corresponding working time, monitors the actual working state and the actual total working time of the display card, improves the accuracy of monitoring, is convenient for after-sales personnel or developers to directly acquire the actual working state and the actual total working time of the display card, and is beneficial to reducing after-sales disputes.

Description

Device and method for detecting working state of display card

Technical Field

The present invention relates to the field of computer technologies, and in particular, to a device and a method for detecting a working state of a graphics card.

Background

The graphic card or display adapter is one of the most basic components of a personal computer. The display card is used to convert and drive the display information required by the computer system, provide line scanning signals to the display, control the correct display of the display, and is an important element for connecting the display with the personal computer main board as an important component in the computer host to take on the task of outputting display graphics.

Along with the rapid development of computers and display technologies, users have higher requirements on computer display interfaces, especially the rapid popularization and development of large games such as 3D, and higher requirements are put forward on computer graphics cards, and the working states of the graphics cards directly relate to the use states of the computers and the experience effects of the users, so how to accurately and intuitively know the working states and the actual total working time of the graphics cards is a problem to be solved at present.

Disclosure of Invention

The invention aims to provide a device and a method for detecting the working state of a display card, which can accurately and intuitively know the working state and the actual total working time of the display card and have high accuracy.

In a first aspect, the present invention provides a device for detecting a working state of a graphics card, including a detection circuit, an interrupt circuit, and a processor;

the detection circuit and the interrupt circuit are respectively and electrically connected with the processor;

the detection circuit is used for detecting external voltage during power-on and acquiring corresponding detection voltage;

the processor is used for analyzing the detection voltage and recording the working state of the display card according to the corresponding analysis result;

and the interrupt circuit is used for enabling the processor to rapidly stop recording the working state of the display card when power is off and storing corresponding working time.

The method has the beneficial effects that: the method comprises the steps that through the arrangement of a detection circuit, an interrupt circuit and a processor, the detection circuit is utilized to detect external voltage during power-on, corresponding detection voltage is obtained, the processor analyzes the detection voltage, and the working state of the display card is recorded according to corresponding analysis results; the interrupt circuit enables the processor to rapidly stop recording the working state of the display card when power is lost, saves corresponding working time, monitors the actual working state and the actual total working time of the display card, improves the accuracy of monitoring, is convenient for after-sales personnel or developers to directly acquire the actual working state and the actual total working time of the display card, and is beneficial to reducing after-sales disputes.

Optionally, the analyzing the detected voltage and recording the working state of the graphics card according to the corresponding result includes:

dividing the detected voltage into a plurality of equal parts for analysis, and recording the working state of the display card when the final voltage value obtained by analysis is higher than a preset value.

The method has the advantages that the detection voltage is divided into a plurality of equal parts for analysis, when the final voltage value obtained through analysis is higher than the preset value, the working state of the display card is recorded, the accuracy of calculating the final voltage value is improved, and the method is favorable for monitoring the accuracy of the actual working state and the actual total working time of the display card.

Optionally, when the power is on, if the detection circuit and the interrupt circuit trigger at the same time, the processor preferably executes the detection circuit.

The display card monitoring device has the advantages that when the detection circuit and the interrupt circuit are triggered at the same time during power-on, the processor preferentially executes the detection circuit, and the accuracy of monitoring the actual working state and the actual total working time of the display card is further improved.

Optionally, the device further comprises a power supply circuit;

the power supply circuit comprises a first resistor and a first capacitor;

the first resistor and the first capacitor are respectively and electrically connected with the processor.

Optionally, the power supply filter circuit is further included;

the power supply filter circuit comprises a second capacitor, a third capacitor and a fourth capacitor;

the second capacitor, the third capacitor and the fourth capacitor are electrically connected in parallel and are electrically connected with the processor.

Optionally, the system further comprises an RTC clock circuit for recording the working state of the display card;

the RTC clock circuit comprises a second resistor, a fifth capacitor, a sixth capacitor and a crystal oscillator;

the fifth capacitor and the sixth capacitor are arranged in parallel, and the second resistor is connected and arranged between the fifth capacitor and the sixth capacitor;

the second resistor, the fifth capacitor, the sixth capacitor and the crystal oscillator are respectively and electrically connected with the processor.

The RTC clock circuit comprises a second resistor, a fifth capacitor, a sixth capacitor and a crystal oscillator; the fifth capacitor and the sixth capacitor are arranged in parallel, and the second resistor is connected and arranged between the fifth capacitor and the sixth capacitor; the second resistor, the fifth capacitor, the sixth capacitor and the crystal oscillator are respectively and electrically connected with the processor, and timing accuracy is high.

Optionally, the circuit further comprises a reset circuit;

the reset circuit comprises a third resistor and a seventh capacitor;

the third resistor and the seventh capacitor are respectively and electrically connected with the processor.

Optionally, the interrupt circuit includes a triode and a fourth resistor;

and the triode and the fourth resistor are respectively and electrically connected with the processor.

Optionally, the detection circuit includes an external power interface, a fifth resistor, a sixth resistor, a seventh resistor and an eighth capacitor;

one end of the sixth resistor is divided into two paths, one path is connected with a fifth resistor and an external power interface which are arranged in series, and the other path is connected with a seventh resistor and an eighth capacitor which are arranged in parallel;

the other end of the sixth resistor is electrically connected with the processor.

In a second aspect, the present invention provides a method for detecting a working state of a graphics card, including the steps of:

detecting external voltage during power-on, and acquiring corresponding detection voltage;

analyzing the detection voltage, and recording the working state of the display card according to the corresponding analysis result;

and when the power is off, the processor rapidly stops recording the working state of the display card, and saves the corresponding working time.

Drawings

Fig. 1 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention;

fig. 2 is a schematic diagram of a wireless communication system of the mobile terminal shown in fig. 1;

FIG. 3 is a schematic structural diagram of a detecting device for detecting a working state of a graphics card according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a specific structure of a detecting device for detecting a working state of a graphics card according to an embodiment of the present invention;

fig. 5 is a flowchart of a method for detecting a working state of a graphics card according to an embodiment of the present invention.

Reference numerals in the drawings:

1. a detection circuit; 2. an interrupt circuit; 3. a processor; 4. a power supply circuit; 5. a power supply filter circuit; 6. an RTC clock circuit; 7. a reset circuit; 8. and an upper computer.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present invention, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.

The terminal may be implemented in various forms. For example, the terminals described in the present invention may include mobile terminals such as cell phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs, desktop computers, and the like.

The following description will be given taking a mobile terminal as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to elements particularly used for a moving purpose.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention, the mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will appreciate that the mobile terminal structure shown in fig. 1 is not limiting of the mobile terminal and that the mobile terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

The following describes the components of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be used for receiving and transmitting signals during the information receiving or communication process, specifically, after receiving downlink information of the base station, processing the downlink information by the processor 110; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication, global System for Mobile communications), GPRS (General Packet Radio Service ), CDMA2000 (Code Division Multiple Access, CDMA 2000), WCDMA (Wideband Code Division Multiple Access ), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time Division synchronous code Division multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency Division Duplex Long term evolution), and TDD-LTE (Time Division Duplexing-Long Term Evolution, time Division Duplex Long term evolution), etc.

WiFi belongs to a short-distance wireless transmission technology, and a mobile terminal can help a user to send and receive e-mails, browse web pages, access streaming media and the like through the WiFi module 102, so that wireless broadband Internet access is provided for the user. Although fig. 1 shows a WiFi module 102, it is understood that it does not belong to the necessary constitution of a mobile terminal, and can be omitted entirely as required within a range that does not change the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the mobile terminal 100. The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive an audio or video signal. The a/V input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting the audio signal.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 1061 and/or the backlight when the mobile terminal 100 moves to the ear. The accelerometer sensor can detect the acceleration in all directions (generally three axes), can detect the gravity and the direction when the accelerometer sensor is static, can be used for identifying the gesture of a mobile phone (such as transverse and vertical screen switching, related games, magnetometer gesture calibration), vibration identification related functions (such as pedometer and knocking), and the like, and can be configured as other sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors and the like, which are not repeated herein.

The display unit 106 is used to display information input by a user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the mobile terminal. In particular, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 1071 or thereabout by using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 110, and can receive and execute commands sent from the processor 110. Further, the touch panel 1071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 107 may include other input devices 1072 in addition to the touch panel 1071. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc., as specifically not limited herein.

Further, the touch panel 1071 may overlay the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or thereabout, the touch panel 1071 is transferred to the processor 110 to determine the type of touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in fig. 1, the touch panel 1071 and the display panel 1061 are two independent components for implementing the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 may be integrated with the display panel 1061 to implement the input and output functions of the mobile terminal, which is not limited herein.

The interface unit 108 serves as an interface through which at least one external device can be connected with the mobile terminal 100. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and an external device.

Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area that may store an operating system, application programs required for at least one function (such as a sound playing function, an image playing function, etc.), and a storage data area; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processors; preferably, the processor 110 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power source 111 (e.g., a battery) for supplying power to the respective components, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described herein.

In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based will be described below.

Referring to fig. 2, fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present invention, where the communication network system is an LTE system of a general mobile communication technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network ) 202, an epc (Evolved Packet Core, evolved packet core) 203, and an IP service 204 of an operator that are sequentially connected in communication.

Specifically, the UE201 may be the terminal 100 described above, and will not be described herein.

The E-UTRAN202 includes eNodeB2021 and other eNodeB2022, etc. The eNodeB2021 may be connected with other eNodeB2022 by a backhaul (e.g., an X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide access from the UE201 to the EPC 203.

EPC203 may include MME (Mobility Management Entity ) 2031, HSS (Home Subscriber Server, home subscriber server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, PGW (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function, policy and tariff function entity) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location registers (not shown) and to hold user specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034 and PGW2035 may provide IP address allocation and other functions for UE201, PCRF2036 is a policy and charging control policy decision point for traffic data flows and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem ), or other IP services, etc.

Although the LTE system is described above as an example, it should be understood by those skilled in the art that the present invention is not limited to LTE systems, but may be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.

Based on the above mobile terminal hardware structure and the communication network system, various embodiments of the method of the present invention are provided.

As shown in fig. 3, the present invention provides a device for detecting a working state of a graphics card, which includes a detecting circuit 1, an interrupt circuit 2 and a processor 3; the detection circuit 1 and the interrupt circuit 2 are respectively and electrically connected with the processor 3; the detection circuit 1 is used for detecting external voltage during power-on and acquiring corresponding detection voltage; the processor 3 is used for analyzing the detection voltage and recording the working state of the display card according to the corresponding analysis result; the interrupt circuit 2 is configured to enable the processor 3 to quickly stop recording the working state of the display card when power is turned off, and save the corresponding working time.

In some embodiments, the analyzing the detected voltage and recording the working state of the graphics card according to the corresponding result includes: dividing the detected voltage into a plurality of equal parts for analysis, and recording the working state of the display card when the final voltage value obtained by analysis is higher than a preset value.

In some embodiments, the processor 3 preferably executes the detection circuit 1 if the detection circuit 1 and the interrupt circuit 2 trigger at the same time at power-up.

In some embodiments, the power supply circuit 4 is also included;

the power supply circuit 4 comprises a first resistor and a first capacitor;

the first resistor and the first capacitor are electrically connected to the processor 3, respectively.

In some embodiments, a power supply filter circuit 5 is also included;

the power supply filter circuit 5 comprises a second capacitor, a third capacitor and a fourth capacitor;

the second capacitor, the third capacitor and the fourth capacitor are electrically connected in parallel and electrically connected with the processor 3.

In some embodiments, the display card further comprises an RTC clock circuit 6 for recording the working state of the display card;

the RTC clock circuit 6 comprises a second resistor, a fifth capacitor, a sixth capacitor and a crystal oscillator;

the fifth capacitor and the sixth capacitor are arranged in parallel, and the second resistor is connected and arranged between the fifth capacitor and the sixth capacitor;

the second resistor, the fifth capacitor, the sixth capacitor and the crystal oscillator are respectively electrically connected with the processor 3.

In some embodiments, a reset circuit 7 is also included; the reset circuit 7 comprises a third resistor and a seventh capacitor; the third resistor and the seventh capacitor are electrically connected to the processor 3, respectively.

In some embodiments, the interrupt circuit 2 includes a transistor and a fourth resistor; the triode and the fourth resistor are respectively and electrically connected with the processor 3.

In some embodiments, the detection circuit 1 includes an external power interface, a fifth resistor, a sixth resistor, a seventh resistor, and an eighth capacitor; one end of the sixth resistor is divided into two paths, one path is connected with a fifth resistor and an external power interface which are arranged in series, and the other path is connected with a seventh resistor and an eighth capacitor which are arranged in parallel; the other end of the sixth resistor is electrically connected to the processor 3.

In some embodiments, the system further includes a host computer 8 for receiving the monitoring data of the detection device; the processor 3 of the detecting device communicates with the upper computer 8 through the 12C interface, so that after-sales personnel or developers can directly acquire the actual working state and the actual total working time of the display card from the upper computer 8, and after-sales disputes can be reduced.

For example, in this embodiment, the processor 3 is an MCU, as shown in fig. 4, U1 is an MCU, the first resistor R1 and the first capacitor C1 form a power supply circuit 4 of U1, the second capacitor C2, the third capacitor C3, and the fourth capacitor C4 form a power supply filter circuit 5 of U1, the second resistor R2, the fifth capacitor C5, the sixth capacitor C6, the crystal oscillator Y1 form an RTC clock circuit 6, the third resistor R3, the seventh capacitor C7 form a reset circuit 7 of U1, the triode Q1 and the fourth resistor R4 form an interrupt circuit 2, the external power interface J1, the fifth resistor R5, the seventh resistor R7, the eighth capacitor C8, and the sixth resistor R6 form an external 12V ADC detection circuit 1, PIN1 and PIN2 (SCL, SDA) of U1 are used as an I2C communication interface, and information is transferred to the GPU host 8, and the relevant design logic is as follows:

after the external 12V of the display card is connected through an external power interface J1, namely when the display card is started, through a voltage dividing circuit of a fifth resistor R5 and a seventh resistor R7 and through the filtering of an eighth capacitor C8, after the transmission of a sixth resistor R6, the external 12V is divided into a small voltage to be transmitted to U1, the ADC function of U1 PA3 is used for analyzing the detected voltage into a plurality of equal parts, when the external voltage rises to 9V, the U1 starts timing, an RTC clock circuit 6 is started, and because the RTC clock circuit 6 adopts 32.768KHZ, the second can be precisely reached, and the process is a power-on timing process; when the display card is powered down, namely the display card is powered off, timing interruption is needed in time, the MCU is prevented from not timing, and because of the power-down time sequence, if the external 12V ADC detection circuit 1 is used for detection conversion, the U1 can not be stopped before the external 12V ADC detection circuit 1 does not fall to a preset voltage value, so that the MCU can not save time when the same mode as power-on is used for detection; therefore, the fastest power-down video memory voltage (FBVDDQ) is used as the trigger voltage, when the video memory voltage (FBVDDQ) falls below the MOS start voltage, the level of the PA4 is changed from low to high, and the interruption function of the PA4 is utilized at this time, so that the U1 VCC stops timing before power down, and the time from power on to power off is saved. Meanwhile, in the power-on process, in order to avoid that the power-on of the video memory voltage (FBVDDQ) is slower, so that the PA4 is in an interrupt trigger state for tens of milliseconds, when designing, if the PA3 and the PA4 occur simultaneously, the action of the PA3 is executed, and the time precision is further improved;

and finally, if all the use time of the display card is to be investigated, the stored time information is transmitted to the GPU upper computer 8 through an I2C (SCL, SDA) interface, the GPU transmits related information to a windows operating system through an NVAPI, and after-sales personnel or developers directly obtain the time information from the windows.

As shown in fig. 5, a method for detecting a working state of a graphics card includes the steps of:

s1, detecting external voltage during power-on, and acquiring corresponding detection voltage;

s2, analyzing the detection voltage, and recording the working state of the display card according to a corresponding analysis result;

s3, when power is lost, the processor rapidly stops recording the working state of the display card, and saves the corresponding working time.

While embodiments of the present invention have been described in detail hereinabove, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. It is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the invention described herein is capable of other embodiments and of being practiced or of being carried out in various ways.

Claims (10)

1. The device for detecting the working state of the display card is characterized by comprising a detection circuit, an interrupt circuit and a processor;

the detection circuit and the interrupt circuit are respectively and electrically connected with the processor;

the detection circuit is used for detecting external voltage during power-on and acquiring corresponding detection voltage;

the processor is used for analyzing the detection voltage and recording the working state of the display card according to the corresponding analysis result;

and the interrupt circuit is used for enabling the processor to rapidly stop recording the working state of the display card when power is off and storing corresponding working time.

2. The device for detecting the operation state of the graphics card according to claim 1, wherein the analyzing the detected voltage and recording the operation state of the graphics card according to the corresponding result comprises:

dividing the detected voltage into a plurality of equal parts for analysis, and recording the working state of the display card when the final voltage value obtained by analysis is higher than a preset value.

3. The apparatus according to claim 1, wherein the processor preferably executes the detection circuit if the detection circuit and the interrupt circuit are triggered simultaneously during power-up.

4. The display card operating state detection device according to claim 1, further comprising a power supply circuit;

the power supply circuit comprises a first resistor and a first capacitor;

the first resistor and the first capacitor are respectively and electrically connected with the processor.

5. The display card operating state detection device according to claim 1, further comprising a power supply filter circuit;

the power supply filter circuit comprises a second capacitor, a third capacitor and a fourth capacitor;

the second capacitor, the third capacitor and the fourth capacitor are electrically connected in parallel and are electrically connected with the processor.

6. The display card operating state detection device according to claim 1, further comprising an RTC clock circuit for recording the operating state of the display card;

the RTC clock circuit comprises a second resistor, a fifth capacitor, a sixth capacitor and a crystal oscillator;

the fifth capacitor and the sixth capacitor are arranged in parallel, and the second resistor is connected and arranged between the fifth capacitor and the sixth capacitor;

the second resistor, the fifth capacitor, the sixth capacitor and the crystal oscillator are respectively and electrically connected with the processor.

7. The apparatus according to claim 1, further comprising a reset circuit;

the reset circuit comprises a third resistor and a seventh capacitor;

the third resistor and the seventh capacitor are respectively and electrically connected with the processor.

8. The display card operating state detection device according to claim 1, wherein the interrupt circuit comprises a triode and a fourth resistor;

and the triode and the fourth resistor are respectively and electrically connected with the processor.

9. The display card working state detection device according to claim 1, wherein the detection circuit comprises an external power interface, a fifth resistor, a sixth resistor, a seventh resistor and an eighth capacitor;

one end of the sixth resistor is divided into two paths, one path is connected with a fifth resistor and an external power interface which are arranged in series, and the other path is connected with a seventh resistor and an eighth capacitor which are arranged in parallel;

the other end of the sixth resistor is electrically connected with the processor.

10. The method for detecting the working state of the display card is characterized by comprising the following steps:

detecting external voltage during power-on, and acquiring corresponding detection voltage;

analyzing the detection voltage, and recording the working state of the display card according to the corresponding analysis result;

and when the power is off, the processor rapidly stops recording the working state of the display card, and saves the corresponding working time.