CN207924653U

CN207924653U - SCM Based computer hardware monitoring system

Info

Publication number: CN207924653U
Application number: CN201820420179.XU
Authority: CN
Inventors: 李川
Original assignee: Xian Aeronautical University
Current assignee: Xian Aeronautical University
Priority date: 2018-03-27
Filing date: 2018-03-27
Publication date: 2018-09-28
Anticipated expiration: 2028-03-27

Abstract

The utility model discloses a kind of SCM Based computer hardware monitoring systems, it is with AT89C51 system core in order to control, to select A/D converter chip MAX187 and 4067 modelled signal input circuit of multiway analog switch and completing A/D conversions, another independent circuits is microcontroller can realize multi-point Temperature Collection as host by I2C bus marco digital sensors DS1621, and the real time data of collected voltage, temperature is shown by liquid crystal display and then is transferred in PC machine by RS232 again.The utility model realizes communication and the data transmission of high speed, while being communicated with PC machine, and fail result is shown to user, practical and convenient, improves accuracy and the reliability of system.

Description

SCM Based computer hardware monitoring system

Technical field

The utility model belongs to field of computer technology, is related to a kind of SCM Based computer hardware monitoring system.

Background technology

With the continuous development of computer technology, computer has more and more come into the work and life of people, when Before, the computer tool important as one has used very universal, and computer is also it occur frequently that failure at work, and is Failure caused by spread of voltage, therefore the process of work is influenced, it can be reduced if can do by myself and repaired to computer Many troubles, when computer hardware breaks down, generally require to contact related after-sale service quotient or specialized maintenance personnel, not only Certain maintenance cost is needed, while process cycle is longer, wasted time, while influencing work.

Utility model content

In order to achieve the above object, the utility model provides a kind of SCM Based computer hardware monitoring system, solution Determined user existing in the prior art can not itself monitor computer hardware the problem of.

The utility model the technical scheme adopted is that provide a kind of SCM Based computer hardware monitoring system, It is characterized in that：Interface P1.5, P1.6 and P1.7 of microcontroller are separately connected DOUT data outputs, the SCLK of digital analog converter Serial clock signal input terminal and CS chip selection signals；The interface P3.6 and P3.7 of microcontroller are separately connected the SDA of temperature sensor Interface and SCL interfaces；The interface P3.0 and P3.1 of microcontroller are connected with the R1OUT interfaces of serial line interface with T1IN interfaces respectively； The T1OUT interface and R1IN interfaces of the serial line interface are connected with the TXD interfaces of PC machine and RXD interfaces respectively；The microcontroller P0.0, P0.1, P0.2 and P0.3 interface at the ends P1 are separately connected on address choice end A, B, C, D of multiple selector；The list Piece machine model AT89C51, the temperature sensor model DS1621, the digital analog converter is using model MAX187's A/D conversion chips, the multiple selector use analog switching circuit 4067, the serial line interface to use MAX232.

Further, the temperature sensor is mounted on counter body, and is provided with buzzer.

Further, the serial line interface is connect with the nine needles serial port in PC machine.

The utility model has the beneficial effects that：

By with monitoring of the chip microcontroller to hardware in computer, and realize that connect with PC machine can be by computer hardware The real-time status of voltage feeds back to computer user, while bringing advantage to the user, improves the accuracy of system and reliable Property；By the way that temperature sensor is arranged on counter body, operating temperature when computer operation is detected in time, and directly pass through Display screen shows that the excessively high buzzer of temperature understands automatic alarm, to avoid damage computer.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other drawings may also be obtained based on these drawings.

Fig. 1 is the module map of computer supervisory control system.

Fig. 2 is the circuit connection diagram of microcontroller and temperature sensor.

Fig. 3 is microcontroller and multiple selector, the circuit connection diagram of digital analog converter.

Fig. 4 is microcontroller and serial line interface and the circuit connection diagram of PC machine.

In figure, 1. microcontrollers, 2. digital analog converters, 3. multiple selector, 4. liquid crystal displays, 5. temperature sensors, 6. reset Circuit, 7. clock circuits, 8. serial line interfaces, 9.PC machines, 10. buzzers.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

Referring to Fig.1-4.The utility model provides a kind of SCM Based computer hardware monitoring system, microcontroller 1 Interface P1.5, P1.6 and P1.7 are separately connected the DOUT data outputs of digital analog converter 2, SCLK serial clock signal input terminals With CS chip selection signals；The interface P3.6 and P3.7 of microcontroller 1 are separately connected the SDA interface and SCL interfaces of temperature sensor 5；It is single The interface P3.0 and P3.1 of piece machine 1 are connected with the R1OUT interfaces of serial line interface 8 with T1IN interfaces respectively；Serial line interface 8 T1OUT interfaces and R1IN interfaces are connected with the TXD interfaces of PC machine 9 and RXD interfaces respectively；The P0.0, P0.1 at the ends microcontroller 1P1, P0.2 and P0.3 interfaces are separately connected on address choice end A, B, C, D of multiple selector 3；1 model AT89C51 of microcontroller, And reset circuit 6 and clock circuit 7 constitute the minimum system of microcontroller 1；5 model DS1621 of temperature sensor, digital-to-analogue conversion Device 2 uses the A/D conversion chips of model MAX187, multiple selector 3 that analog switching circuit 4067, serial line interface 8 is used to adopt Use MAX232；Temperature sensor 5 is mounted on counter body, is provided with buzzer 10；It is calculated by 4 real-time display of liquid crystal display The running temperature of machine；Serial line interface 8 is connect with the nine needles serial port in PC machine 9.

The operation principle of the utility model：

Analog quantity is signal there are initial conditions, and analog signal of acquisition itself is the physical quantity continuously changed.Sensor This signal is transformed into accessible electric signal.Electric signal after transformation will in most cases pass through amplification, and filtering makes telecommunications Number reach the input sets requirement of A/D chips.In the present system, 16 road analog acquisitions can be at most carried out, using 4067 Hes MAX187 connections coordinate.Multiple selector 4067 is one 16 and selects 1 analog switching circuit, can be gated by software timesharing by it The input of each analog channel.MAX187 is the A/D converter of 12 precision serial line interface, it has been internally integrated three lines Spi bus is connected by software programming control with microprocessor hardware, and interface is simple, and reliability is high.

Sensor DS1621 need not by circuit can direct measuring temperature, by result with 9 bit digital quantities (two bytes pass It is defeated) it provides, general measurement range is -55 DEG C~+155, and DEG C precision is very high to can reach 0.5；DEG C conversion time is 1s； User can go the temperature value of adjustment constant temperature meter, sensor that can automatically arrive the temperature value storage of the modification according to the needs of oneself In register.The reading and write-in of data are completed by the I2C bus interface that it is internally integrated, and DS1621 supports I2C buses. DS1621 uses 8 foot DIP.DS1621 digital temperature sensors and microcontroller can form an acquisition system, due to sensor Support I2C buses, microcontroller can at most meet 8 DS1621 as main controller, i.e., to 8 temperature samplings, inside have temperature Sensor and thermostatic controller, can be in oneself set temperature and incoming microcontroller, and shows real time temperature by display screen, waits for When the temperature is excessively high, buzzer can automatic alarm；The temperature of fixed point can also directly be measured.

After data are acquired, only passing in computer i.e. PC machine preferably to handle and monitor, and pass through microcontroller string Row communication, using RS-232 interface standard.So that the data that system automatic collection arrives is handled through A/D conversion chips, monolithic will be passed through Machine transmits data in the data window of host computer, realizes and is monitored to the real-time voltage of computer hardware.

The above is only the preferred embodiment of the utility model only, is not intended to limit the protection model of the utility model It encloses.Any modification, equivalent substitution, improvement and etc. made within the spirit and principle of the present invention, are all contained in this reality With in novel protection domain.

Claims

1. a kind of SCM Based computer hardware monitoring system, it is characterised in that：Interface P1.5, P1.6 of microcontroller (1) The DOUT data outputs, SCLK serial clock signals input terminal and CS pieces that digital analog converter (2) is separately connected with P1.7 select letter Number；The interface P3.6 and P3.7 of microcontroller (1) are separately connected the SDA interface and SCL interfaces of temperature sensor (5)；Microcontroller (1) Interface P3.0 be connected respectively with T1IN interfaces with the R1OUT interfaces of serial line interface (8) with P3.1；The serial line interface (8) T1OUT interfaces and R1IN interfaces are connected with the TXD interfaces of PC machine (9) and RXD interfaces respectively；Microcontroller (1) ends P1 P0.0, P0.1, P0.2 and P0.3 interface are separately connected on address choice end A, B, C, D of multiple selector (3)；The microcontroller (1) model AT89C51, temperature sensor (5) the model DS1621, the digital analog converter (2) use model The A/D conversion chips of MAX187, the multiple selector (3) use analog switching circuit 4067, the serial line interface (8) to use MAX232。

2. a kind of SCM Based computer hardware monitoring system according to claim 1, which is characterized in that the temperature It spends sensor (5) to be mounted on counter body, and is provided with buzzer (10).

3. a kind of SCM Based computer hardware monitoring system according to claim 1, which is characterized in that the string Line interface (8) is connect with the nine needles serial port in PC machine (9).