CN207215305U - SCM Based high-tension electricity device temperature on-line monitoring system - Google Patents

Abstract

It the utility model is related to a kind of high-tension electricity device temperature on-line monitoring system based on MSP430 single-chip microcomputers, including temperature measurement module and data processing module, temperature measurement module gathers environment temperature or power equipment surface temperature by temp probe, after multichannel analog amount is changed by A/D, then from MSP430 single-chip microcomputers control infrared emission head to data processing module send temperature data；After data processing module receives temperature data, judge whether temperature exceedes normal range (NR), provide alarm signal in time, while the temperature data of each passage is shown on liquid crystal.The utility model is using PT1000 temp probes collection environment temperature or power equipment surface temperature, infrared emission head is controlled to send temperature data to data processing module from MSP430 single-chip microcomputers again, data processing module is by data by Serial Port Transmission to host computer, realizing the on-line monitoring to high-tension electricity device temperature and early warning.

Description

SCM Based high-tension electricity device temperature on-line monitoring system

Technical field

The utility model belongs to the online real-time examination and repair of power equipment and area of maintenance, more particularly to SCM Based height Piezoelectric forces device temperature on-line monitoring system.

Background technology

For the equipment of power plant and transformer station in During Process of Long-term Operation, some positions are excessive and send out because of aging or contact resistance Heat, and the temperature of these heating positions can not monitor in real time, therefore easily cause equipment burnout or the suddenly accident such as power failure.Solve Power equipment problems of excessive heat is to prevent the key that such accident occurs.Due to there is an exposed high pressure in high-tension electricity equipment, space is narrow Small, conventional thermometry can not use.The utility model will introduce a kind of high-tension electricity equipment temperature based on MSP430 On-line monitoring system is spent, environment temperature or power equipment surface temperature are gathered using PT1000 temp probes, then it is mono- by MSP430 Piece machine controls infrared emission head to send temperature data to data processing module, and data processing module arrives data by Serial Port Transmission On host computer, the on-line monitoring to high-tension electricity device temperature and early warning are realized.

Utility model content

The utility model provide it is a kind of the temperature of high-tension electricity equipment is sent to by the way of infrared communication it is upper Machine carries out on-line monitoring and the temperature monitoring system of early warning.

Technical scheme is used by the utility model：

SCM Based high-tension electricity device temperature on-line monitoring system, it is characterised in that including the survey being sequentially connected Warm module and data processing module,

Temperature measurement module includes：Include the temperature measuring circuit, MSP430F123 single-chip microcomputers, A/D moduluss of conversion of temp probe Block and infrared emission head；Temperature measuring circuit is connected with A/D modular converters, infrared emission head and A/D modular converters simultaneously with MSP430F123 single-chip microcomputers connect；

Data processing module includes：Infrared receiving terminal, memory module, MSP430F413 single-chip microcomputers and LCD MODULE；

Data are exchanged by infrared communication between two modules；Outer reception head, memory module and LCD MODULE are simultaneously It is connected with MSP430F413 single-chip microcomputers；

The temp probe of the temperature measurement module uses PT1000 platinum resistance thermometer sensor,s, and temperature measuring circuit is using low voltage power supply Parallel voltage-stabilizing voltage-reference TLV431, and the measuring resistance R1 and measuring resistance R2 of thousand-island forest park measure real-time temperature Degree；

The A/D modular converters of the temperature measurement module need two passage AD amounts AD0 by analog switch chip CD4051 and AD1 is sequentially transmitted A/D conversion inputs and carries out A/D conversions respectively；

The infrared communication circuit is that the data for needing to transmit are modulated to caused by the ACLK ports of MSP430 single-chip microcomputers It is transmitted on high frequency carrier；

The memory module is that temperature data storage is used into Flash chip for data statistics；

The LCD MODULE is to directly drive liquid crystal by the liquid crystal driver module built in single-chip microcomputer to work, aobvious in real time Show each measurement point temperature.

Compared with prior art, the utility model has the characteristics that：Temperature measurement module can be directly anchored to measurement point, will It shields shell and effectively contacted with measurement point, thus can effectively shield the interference of electromagnetic field caused by hyperbaric environment, simultaneously It has been also convenient for site installation test；The infrared head of data processing module can be connected to the signal of module by longer shielding line Receiving terminal, such data processing module just can prevent hyperbaric environment for data processing module stability away from thermometric scene Influence；Temperature measurement module power consumption is extremely low and strong antijamming capability.

Brief description of the drawings

Fig. 1 is system construction drawing of the present utility model.

Fig. 2 is temperature measuring circuit figure of the present utility model.

Fig. 3 is infrared communication circuit figure of the present utility model.

Embodiment

This high-tension electricity device temperature on-line monitoring system is by the temperature measurement module installed in temperature measuring point and data processing Module forms, and the utility model is described in further detail below in conjunction with the accompanying drawings.

Wherein, Fig. 1 parts include：Temp probe, digital analog converter, MSP430F123 single-chip microcomputers and MSP430F413 monolithics Machine, infrared emission head, infrared receiving terminal, memory module, keyboard input module, LCD MODULE, host computer.Fig. 2 part bags Include：PT1000 platinum resistance thermometer sensor,s, parallel voltage-stabilizing voltage-reference TLV431, the precision resister R1 and R2, double of thousand-island forest park Polar transistor.Fig. 3 parts include：MSP430 single-chip microcomputers, resistance, bipolar transistor, infrared emission head and infrared receiving terminal.

Such as Fig. 1, the concrete function of system realize is realized by temperature measurement module and this two big module of data processing module , wherein temperature measurement module is responsible for the function of temperature data acquisition：Temperature simulation amount is changed into by voltage by PT1000 temp probes Analog quantity, then temperature data is sent in single-chip microcomputer by A/D conversions and handled, temperature acquisition time interval can pass through number It is configured according to the instruction of processing module transmission.Temperature measurement module sends what is collected by infrared communication to data processing module Temperature data, the control command of data processing module can also be received.Data processing module can realize four big functions：By red Outer communicate to temperature measurement module sends control command, can also receive the temperature data of temperature measurement module transmission；By built in single-chip microcomputer Liquid crystal driver module can directly drive liquid crystal work, each measurement point temperature of real-time display；Flash is arrived in temperature data storage In chip, used for data statistics；Host computer is transferred data to by serial ports, host computer can build each point temperature data Storehouse.

Such as Fig. 2, after temperature survey starts, P1.0 is set low, and P1.1 puts height, and at this moment Q1 is turned on, Q2 cut-offs.Now equivalent to R1 TLV431 both ends are parallel to R2, can obtain output voltage VAD0=Vref* (1+R1/R2), due to VAD0, R1 and R2 all Know, it is possible to obtain Vref.After obtaining REF magnitudes of voltage, P1.0 is put into height, P1.1 is set low, and at this moment Q1 ends, Q2 conductings.This When equivalent to PT1000 and R2 be parallel to TLV431 both ends, can obtain output voltage VAD1, due to VAD1, Vref and R2 all Know, therefore can accurately obtain PT1000 resistance value, real-time environment temperature is obtained further according to PT1000 phasing meters.

Such as Fig. 3, it would be desirable to which the data of transmission are modulated on 32768Hz carrier wave and are transmitted again, MSP430 monolithic equipments There are ACLK ports, can independently produce 32768Hz impulse wave, therefore can easily generate high frequency carrier using it. MSP430F123 ACLK ports are P2.0 pins, and MSP430F413 is P1.5 pins, realizes that logic takes using hardware mode Instead.

The utility model needs the hardware and its attachment structure of foregoing description to be protected, the processing side for being related to signal Method and process, be in order to explain the operation principle of hardware configuration of the present utility model, be not belonging to the scope of protection of the utility model, After hardware connection structure of the present utility model, the process of signal transacting can be achieved by the prior art.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (1)

1. SCM Based high-tension electricity device temperature on-line monitoring system, it is characterised in that including the thermometric being sequentially connected Module and data processing module,

Temperature measurement module includes：Include the temperature measuring circuit of temp probe, MSP430F123 single-chip microcomputers, A/D modular converters and Infrared emission head；Temperature measuring circuit is connected with A/D modular converters, infrared emission head and A/D modular converters simultaneously with MSP430F123 single-chip microcomputers connect；

Data processing module includes：Infrared receiving terminal, memory module, MSP430F413 single-chip microcomputers and LCD MODULE；

Data are exchanged by infrared communication between two modules；Outer reception head, memory module and LCD MODULE simultaneously with MSP430F413 single-chip microcomputers connect；

The temp probe of the temperature measurement module uses PT1000 platinum resistance thermometer sensor,s, and temperature measuring circuit uses the parallel connection of low voltage power supply Voltage of voltage regulation a reference source TLV431, and the measuring resistance R1 and measuring resistance R2 of thousand-island forest park measure real time temperature；

The A/D modular converters of the temperature measurement module need by analog switch chip CD4051 by two passage AD amount AD0 and AD1 according to The secondary A/D conversion inputs that are sent to carry out A/D conversions respectively；

The infrared communication circuit is that the data for needing to transmit are modulated into high frequency caused by the ACLK ports of MSP430 single-chip microcomputers It is transmitted on carrier wave；

The memory module is that temperature data storage is used into Flash chip for data statistics；

The LCD MODULE is to directly drive liquid crystal by the liquid crystal driver module built in single-chip microcomputer to work, and real-time display is each Measurement point temperature.