CN205483304U - Automatic data logger of digital exhaust temperature - Google Patents

Abstract

The utility model provides an automatic data logger of digital exhaust temperature, include: the treater is rather than control panel, parameter storage, display and the relay warning circuit of electricity connection, in proper order the temperature sensor that connects of electricity, data converter and the processo. The power modul. The treater is received the data signal of the temperature sensor value of data converter conversion the display shows temperature information to when judging equipment trouble, still pass through the host computer is given to relay warning circuit alarm output signal. By last, realized full -digital, improve measurement accuracy, and strengthened the interference killing feature of device. Can audio -visually demonstrate the temperature and the trouble information of 13 passageways, make things convenient for operating personnel to see and look into, take notes and operate.

Description

The automatic data-logger of digitized delivery temperature

Technical field

This utility model relates to a kind of nuclear power instrument control technical field, particularly relates to a kind of digitized row The automatic data-logger of temperature.

Background technology

For the automatic data logger system of delivery temperature in nuclear power instrument control field, should by being installed on Armoured K-thermocouple detector in anxious diesel engine and the automatic data-logger of delivery temperature Two parts form.Existing equipment is all to be provided by external producer, belongs to eighties of last century eight, nine The product in the ten's, major part is built by analog circuit.Owing to using the cycle long, cause Ageing equipment, occurs in that various problem: produce false alarm, certainty of measurement declines, measure temperature Overproof, alarm signal cannot eliminate；Add Daya Gulf, ridge Australia without spare part and domestic There is no this kind equipment and can obtain application under bad electromagnetic environment.

Accordingly, it would be desirable to a kind of automatic data-logger of digitized delivery temperature, on solving State technical problem.

Utility model content

In view of this, main purpose of the present utility model is to provide a kind of digitized delivery temperature Automatically data-logger, including:

Processor, the control panel being connected electrically, parameter storage, display and relay Warning circuit；

Temperature sensor, data converter and the described processor being sequentially connected electrically；

Power module；

Described processor receives the numeral letter of the temperature sensor value of described data converter conversion Number, in described display displays temperature information, and when judging equipment fault, continue also by described Electrical equipment warning circuit output alarm signal is to host computer.

By upper, it is achieved that total digitalization, improve certainty of measurement, and strengthen the anti-dry of device Disturb ability.The automatic data-logger of the digitized delivery temperature of this utility model, it is achieved total Word, improves certainty of measurement, strengthens the capacity of resisting disturbance of device.Can demonstrate intuitively The temperature of 13 passages and fault message, facilitate operator to see and look into, record and operate.

Optionally, the LED alarm lamp electrically connected with described processor is also included, it is judged that set Also control described LED alarm lamp during standby fault to light accordingly.

Optionally, described temperature sensor gathers multichannel cylinder, the temperature of multichannel turbine respectively；

Described LED alarm lamp includes that the most corresponding temperature cylinder high fault, temperature cylinder are low Fault, turbine temperature high fault, the low fault of turbine temperature, meansigma methods high fault, absolute error High fault, the LED of disconnected even fault.

Optionally, described parameter storage includes: storage be used for judging temperature cylinder high fault, The low fault of temperature cylinder, turbine temperature high fault, the low fault of turbine temperature, meansigma methods high fault, The chip M24C01 of the temperature parameter threshold value of absolute error high fault.

Optionally, described temperature sensor includes gathering multichannel K-type thermocouple signal MAX6675 temperature acquisition chip；Described data converter includes multichannel data change-over circuit.

Optionally, described processor includes: MSP430F149 type single-chip microcomputer.

Optionally, also include the watchdog circuit electrically connected with processor, be used for sending reset letter Number give operation irregularity time described processor.

Optionally, described alarm relay circuit includes: the transport and placing device that is sequentially connected electrically, three poles Pipe and relay.

Optionally, described power module includes being sequentially connected electrically protection circuit, filter circuit and DC/DC module, for 48V direct current being turned the output of 12V direct current, and

Filter circuit, voltage stabilizing chip and the filter circuit being sequentially connected electrically, for by described 12V Direct current turns the output of 3.3V direct current.

Accompanying drawing explanation

Fig. 1 (A) is the front view of the automatic data-logger of digitized delivery temperature；

Fig. 1 (B) is the rearview of the automatic data-logger of digitized delivery temperature；

Fig. 2 (A), (B) are that the assembling of the automatic data-logger of digitized delivery temperature is shown It is intended to；

Fig. 3 is the circuit theory schematic diagram of the automatic data-logger of digitized delivery temperature；

Fig. 4 is the circuit theory schematic diagram of power module；

Fig. 5 is the work schedule schematic diagram of data acquisition module；

Fig. 6 is the circuit theory schematic diagram of alarm relay module；

Fig. 7 is digitized delivery temperature automatic data-logger external interface schematic diagram；

Fig. 8 is the operation principle schematic diagram of the automatic data-logger of digitized delivery temperature；

Fig. 9 is the code level workflow signal of the automatic data-logger of digitized delivery temperature Figure.

Marginal data, 1. casing；2. upper cover；3.M3 × 6 sunk screw；4. front panel；5. before Panel pad pasting；6. white color knobs switch；7.M3 × 6 Cross Recess Head Screw；8.M3 plain cushion； 9.M3 spring washer；10.PCB plate 1；11. φ 40 aviation plugs；12. φ 28 aviation plugs；13.M3 × 10 cross recess coiled hair spiral shells；14. display screens；15.PCB plate 2；16. interior lining panels；17. beryllium copper springs Sheet.

Detailed description of the invention

This utility model belongs to nuclear power instrument control technical field, utilizes based on MSP430F149 The single-chip microcomputer of+MAX6675+LCD, K-type electric thermo-couple temperature are measured, LCD Display Technique, By the temperature of 13 passages in MAX6675 collection nuclear power station Emergency diesel cylinder, turbine Degree, these data are calculated and process by MSP430F149, the temperature of each passage are believed Breath, fault message are shown by LCD liquid crystal display screen and LED light, and pass through relay Device warning circuit is to host computer output alarm signal.

Additionally, this utility model can by panel button realize associated temperature parameter setting and Preserve function (to arrange parameter and include mean temperature height alarming value, temperature cylinder height alarming value, gas Cylinder low alarm temperature value, turbine temperature height alarming value, the low alarming value of turbine temperature, absolute error Alarming value), the samsara of 13 channel temperature information shows and manual queries function, eliminate report to the police Function, power down fault alarm parameter storage function, LCD display screensaver functions, ginseng is set Number input password anti-misoperation function, self-checking function, positive and negative temperature correction function.

Below this utility model automatic circling measurment of digitized delivery temperature is put into row specifically Bright:

1. master-plan introduction

This utility model is a box structure, and it includes casing, internal hardware circuit, interior External interface and man-machine panel.Internal hardware circuit by power module, signal acquisition module, MUC data processing module, LCD display module, status alert indicating lamp module, panel are pressed Key module, alarm relay output module, power down parameter memory module form.Man machine interface bag Include 1 LCD, 7 LED and 4 buttons.

(1) externally fed power supply: 48V ± 4%；Maximum ripple 1% peak-to-peak value.

(2) input signal: thermocouple input measurement scope is 0～720 DEG C.

(3) way of output: LCD liquid crystal display screen indicating mode；LED alarm lamp indicating mode.

(4) precision: certainty of measurement: the 1% of full scale；Display precision: ± 3 DEG C.

(5) type of alarm.

Mean temperature height is reported to the police；(having relay tip to export, trouble light is lighted)

Absolute error is reported to the police；(having relay tip to export, trouble light is lighted)

Cylinder high temperature alarm；(having relay tip to export, trouble light is lighted)

Cylinder low-temperature warning；(having relay tip to export, trouble light is lighted)

Turbine high temperature alarm；(having relay tip to export, trouble light is lighted)

Turbine low-temperature warning；(having relay tip to export, trouble light is lighted)

Disconnected even report to the police (non-relay contact exports, and trouble light is lighted)

(6) the display every passage of scanning speed: 2s/.

(7) operating ambient temperature: 0 DEG C to+50 DEG C.

(8) storage temperature :-40 DEG C to+70 DEG C.

(9) relative humidity :≤93% frozen-free.

The function of the automatic data-logger of delivery temperature includes: 13 paths temperature surveys, LCD fault information shows, LED failure indicates, fault alarm parameter is arranged, relay report Alert output, LCD liquid crystal display screen screen protection, LED self-inspection, the wheel echo of 13 paths temperature informations Show with manual queries, eliminate report to the police, power down fault alarm parameter storage, arrange parameter input close Code anti-misoperation, positive and negative temperature correction.

In structure, the size of the automatic data-logger of delivery temperature be 196mm × 180mm × 100mm (length × width × height).

2. design

The design of development separation structure, circuit design and the software of the automatic data-logger of delivery temperature Design three aspects.

2.1 structure designs

The overall dimensions of the automatic data-logger of delivery temperature be 196mm × 180mm × 100mm (length × width × height), contour structure size figure such as accompanying drawing 1 (A), Fig. 1 (B) Shown in, wherein, Fig. 1 (A) is front view, and Fig. 1 (B) is rearview.Delivery temperature is certainly Shown in assembling the figure such as accompanying drawing 2 (A), Fig. 2 (B) of dynamic data-logger, mainly include Following parts: casing, chest upper cover, front panel, front panel pad pasting.Each several part technology Require as follows:

(1) casing technology requires: material is 20 priming sheets, thickness t=1mm, and bending is welded Connect and form, through R=0.5t in bending；Do not mark tolerance and meet GB/T1804-M；Note welding Condition, prevents from cooling down rear box deformation, and even weld, without rosin joint, bubble phenomenon, it is desirable to weldering At seam, grinding homogeneity is smooth；After pin machines, punch at casing correspondence position, pin In insertion hole, survey firm to pin and welding box body from interior；Self-clinching standoff crimping firmly, is not permitted Permitted there is loosening phenomenon；Surface entirety zinc electroplating with iridescent yellow chromate conversion coating, thickness is not less than 8um, then plastic-blasting, color Light grey for RAL7035；Meet ROHS.

(2) chest upper cover technology requires: material is 20 priming sheets, thickness t=1.5mm； Do not mark tolerance and meet GB/T1804-M；Smooth surface impulse-free robustness, zinc electroplating with iridescent yellow chromate conversion coating, thickness is the least In 8um, then plastic-blasting, color is that RAL7035 is light grey；Meet ROHS.

(3) front panel technology requires: material is PC510, and color is black；Do not mark tolerance Meet GB/T1804-f；Smooth surface impulse-free robustness；Outer seamed edge rounding, chamfer radius R=1mm.

(4) front panel Filming Technology requires: material PC plastics, and color RAL7035 is light grey, Thickness t=0.5mm；Do not mark tolerance and meet GB/T1804-M；Character silk printing arrangement is the most beautiful See；φ 19 hole is through hole, and the hole of φ 3.5 is the hole that hyaline membrane is covered on surface, middle rectangular opening Hyaline membrane is covered on surface；In addition to requiring as the region of hyaline membrane, remaining region is tearing 3M gummed paper After, it is necessary to opaque；Standby 3M glue.

Delivery temperature automatic data-logger entirety need to be arranged on mimic panel, solid by two Device is fixedly mounted on mimic panel by fixed structure part.

2.2 circuit design

2.2.1 theory diagram

There are two pieces of circuit boards in delivery temperature automatic data-logger circuit design, are respectively main Plate and display panel, display panel only completes the function of LED warning instruction, and other function all exists Mainboard is achieved above.The theory diagram of the automatic data-logger of delivery temperature is as shown in Figure 3.

The power supply of device is+48VDC, changes into+12VDC (to relay through power module Device is powered) and+3.3VDC (to supplying digital circuits).13 tunnel K-type thermocouple signal warps 13 circuit-switched data change-over circuits are converted into digital signal, MCU microprocessor carry out data acquisition, These data are filtered in MCU, calculate and process, each passage after then processing Temperature information be sent to LCD and show.If MCU judges faulty, corresponding LED Alarm lamp will be lit, simultaneously field application relay, gives from relay output alarm signal Host computer.Temperature parameter can be configured and preserve by panel button, can inquire about each and lead to The temperature information in road and fault message, it is also possible to after operator confirms alarm free, eliminate relay The function that output is reported to the police.MCU meeting timing transmission pulse signal is to watchdog circuit, if MCU Running abnormal, watchdog circuit sends reset signal to MCU.

2.2.2 power module

Power module theory diagram is as shown in Figure 4.After+48VDC the power filter of outside, warp Crossing DC-DC isolation module and be converted into+12VDC output ,+12VDC, will through voltage stabilizing chip Power supply voltage stabilizing is to+3.3VDC.Wherein DC-DC isolation module input voltage range is 18～75VDC, isolation voltage is 1500VDC.

Due to the output of K-type thermocouple is millivolt level signal, belongs to small signal process, power supply stricture of vagina The size of ripple directly influences thermometric precision, and therefore, thermocouple temperature measurement is to power supply ripple Requirement the highest.In order to reduce power supply ripple as far as possible, at+48VDC power input during design Add special filter and filter capacitor, filter the noise signal of external power source；At DC/DC Module outfan and voltage stabilizing chip output have all added electric capacity, common mode inductance, reduce power supply stricture of vagina Ripple.After tested, the ripple of+3.3VDC power supply output is less than 5mV, and temperature measurement accuracy reaches ± 2 DEG C are arrived；When power supply ripple is more than 50mV, thermometric error is big, and precision exceedes The 1% of full scale.

2.2.3 data acquisition module

K-type thermocouple is a kind of temperature sensing that current industrial production, scientific experiments are more conventional Device, it can directly measure the liquid vapour in various production in the range of 0～1300 DEG C, gas Medium and surface of solids temperature.Measurement scope and higher cost performance thereof due to it so that K Type thermocouple is widely used.But there is non-linear cold-patch and the problem such as repay, especially in K-type thermocouple It is when processing compensation problem, needs pay higher cost and be difficult to there is preferable effect. MAX6675 temperature acquisition chip, compensate for K-type thermocouple drawbacks described above.By MAX6675 Merge for commercial production and experiment with K-type thermocouple junction, can for engineering bring many facilities and Reduce loaded down with trivial details adjunct circuit.

Data Acquisition Design emphasis in the reading of measuring circuit MAX6675 temperature measurement data, MAX6675 Yu MCU communication.The work schedule of MAX6675 as shown in Figure 5, works as CS Pin from high level become low level time, MAX6675 stop any signal conversion and time Switched data are outwards exported under the effect of clock SCK；When CS changes back to high electricity from low level At ordinary times, MAX6675 will carry out new round conversion.The trailing edge at SCK that reads of data enters OK, a complete digital independent needs 16 clock cycle.

The output data of MAX6675 are 16, and high-order front during output, low level is rear.The One D15 is useless position；D14-D3 is 12 of thermocouple analog electrical output gesture conversion Digital quantity；D2 position is thermocouple burn out detection position, shows that thermocouple breaks when D2 position is 1； D1 position is MAX6675 identifier；D0 is tri-state.D14～D3 is 12 bit data, its Minima is 0, and corresponding temperature value is 0 DEG C；Maximum is 4095, and corresponding temperature value is 1024℃；Owing to have passed through laser correction inside MAX6675, therefore, its transformation result with Corresponding temperature value has preferable linear relationship.Temperature value with the corresponding relation of digital quantity is:

Temperature value=1024 × ADC_DATA/4095, after wherein ADC_DATA is conversion Digital quantity i.e. D14～D3.

2.2.4MCU data processing module

MCU selects TI company MSP430F149 type single-chip microcomputer, why selects this monolithic Machine is based primarily upon it as system data processing unit and is widely applied field, powerful computing merit Energy and super low-power consumption.

The D14-D3 data that MAX6675 is exported by MCU process, according to formula: T_iDigital quantity/4095 after=1024 × conversion, T_iFor channel temperature value (i is gap marker number), Calculate the temperature value of each passage.5 groups of data of each channel acquisition, are filtered by recurrence average Method, calculates filtered channel temperature value T_j(j is gap marker number), computing formula is:Wherein T_jiRepresent the temperature value that i-th group of j passage gathers.According to formula:Calculate the meansigma methods of 1～12 paths temperature.According to formula ΔT_j=| T_j-T_ave|, calculate the absolute error of each channel temperature.Then by the T of each passage_jWith The high and low temperature threshold value set compares judgement；T_aveJudgement is compared with the meansigma methods set； ΔT_jJudgement is compared with the deviation value set.After multilevel iudge is complete, temperature information passes through MCU I/O mouth send the data to LCD parallel and show (temperature value of each passage, absolute error And the meansigma methods of 12 passages, fault message), malfunction is shown by LED light.

2.2.5LCD display module

LCD display module selects LCD12864 liquid crystal display, and this liquid crystal display has 4 Position/8 parallel-by-bits, 2 lines or 3 line serial multiplex roles modes, internal containing GB one-level, two grades The dot-matrix lcd module of simplified form of Chinese Character character library: its display resolution is 128 × 64, Built-in 8192 16 × 16 Chinese characters, and 128 16 × 8 ascii character-sets；This kind of Liquid crystal display with its Micro Energy Lose, volume is little, it is abundant in content, ultra-thin lightly etc. many excellent to show Point, has obtained increasing application in pocket meter and low-power dissipation system.

After the temperature data collected is processed by MCU, by LCD Dynamic Announce 13 paths Temperature value, resultant fault information, 1～12 passage meansigma methods and the absolute error of each passage Value.LCD display module the first row is shown that meansigma methods, and the second row is shown that the temperature of passage Angle value and the fault type of this passage, the third line is shown that the absolute error value of this passage, the Four row are shown that resultant fault information.Under patrol mode, 2s switches a passage, with this The temperature information of circulation display 13 paths.If it occur that fault, LCD shields surely, display event Barrier passage and corresponding failure type.As: channel temperature value exceedes bound or absolute error is overproof, LCD shields faulty channel surely, shows temperature information and the fault message of this passage, until reporting to the police Remove and just patrol and examine.

2.2.6 panel button module

In circuit, each button has added Key dithering electric capacity, and four buttons are respectively " parameter setting / confirm ", " moving to right/page turning ", " move down/increase ", " eliminate report to the police ".

Four push button function are as follows:

(1) " parameter arranges/confirms " button

A. it is used for entering Parameter Set-up Menu interface；

B. enter parameter value and interface is set；

C. parameter setting values is preserved；

D. password confirming is inputted.

(2) button that " moves to right/page turning "

A. under faulty pattern, there is the function of page turning, for checking the relevant letter of 13 passages Breath；

B. menu interface is being set, there is the function of page turning, pressing and can check that lower one page arranges dish Individual event；

C. arranging parameter value interface, having the function moved to right, press the button, cursor moves right, Choose the parameter bit needing amendment；

D., under normal patrol mode, have and determine screen and the function of page turning (page turning to the left)；

E. under input cipher mode, having the function moved to right, press the button, cursor moves right, Choose the password position needing amendment.

(3) " move down/increase " button

A. menu interface is being set, there is the function moved down, press the button, needs can selected The parameter setting item of amendment；

B. parameter value interface is being set, there is the function of increase, press the button, phase can increased Answer the numerical value of position；

C., under normal patrol mode, have and determine screen and the function of page turning (page turning to the right)；

D., under input cipher mode, there is the function of increase, press the button, can increase and choose The numerical value of position.

(4) " eliminate and report to the police " button: be used for eliminating relay output alarm signal.

Delivery temperature automatic data-logger temperature arranges parameter default and includes: high average temperature Degree, the setting value of alarming value of cylinder high/low temperature, turbine high/low temperature, absolute error etc..

2.2.7 status alert indicating lamp module

A total of 7 LED lights of status alert indicating lamp module, respectively temperature cylinder are high The low fault of fault, temperature cylinder, turbine temperature high fault, the low fault of turbine temperature, meansigma methods High fault, absolute error high fault, disconnected even fault.MCU passes through I²Fault is believed by C bus Breath is written in the chip that serial ports turns parallel port, is then driven the light on and off of LED by audion. If fault message is unchanged, the most do not write data；Change, then update serial ports and turn in the chip of parallel port Data.

2.2.8 alarm relay output module

Alarm relay module principle figure is as shown in Figure 6.When equipment Inspection is to faulty (disconnected Except idol), MCU one level signal of output, to amplifier, compares rear drive three pole through amplifier Pipe, field application relay output contact signal is to master system.

2.2.9 power down parameter memory module

Power down parameter memory module is mainly made up of chip M24C01, and chip is used for storing temperature Parameter threshold.

2.2.10 man machine interface

Delivery temperature automatic data-logger man machine interface include three part: LCD show, Button, failed led type indicate.LCD display mode and keypress function are shown in 2.2.5 Save with 2.2.6.

2.2.11 inside and outside interface

Delivery temperature automatic data-logger external interface is as shown in Figure 7.On the left of equipment 17 pin air plugs are A row, and 17 middle pin air plugs are B row, and A, B row air plug is thermocouple Input interface, its model is the 0383-220-06 of JAEGER；The 12 pin air plugs on right side are for setting Stand-by power source input and alarm relay signal output interface, its model is JAEGER's 0383-590-06。

2.3 software design

2.3.1 software development environment

Operating system: windows XP

Development language:

Slave computer: C language

Development platform:

Slave computer: IAR EW430 5.3.

2.3.2 software design principle

Systems soft ware master-plan theory diagram is as shown in Figure 8.Software function mainly include with Under several parts: data acquisition, MCU data and information processing, parameter arrange (cylinder and whirlpool Wheel high and low temperature alarm threshold value, mean temperature height alarm threshold value, correction temperature), self-checking function, Power down parameter stores, LCD shows, LED shows and alarm relay.

Data acquisition: gather the temperature data of 13 paths.

MCU data and information processing: calculate temperature value and deviation value, 12 tunnels of 13 paths The meansigma methods of temperature cylinder, analyze the fault type of 13 paths, analysis integrated fault message.

Parameter is arranged: can arrange cylinder and turbine high and low temperature alarm threshold value, mean temperature height Alarm threshold value, positive correction temperature value, negative correction temperature value.

Self-checking function: 7 LED respectively flash twice, LED is the most faulty in detection.

Power down parameter stores: after power down, the last parameter setting values preserved of storage.

LCD shows: patrol and examine interface display channel temperature value, channel failure type, mean temperature Value, channel offset value and resultant fault information；Parameter arranges interface display each fault alarm value and sets Confidence ceases.

LED shows: instruction fault type.

Alarm relay: time delay output relay alarm signal.

2.3.3 programming

Software flow pattern is as shown in Figure 9.After the automatic data-logger of delivery temperature powers on, First initialize, including house dog initialize, system clock initialize, I/O port initialize, Intervalometer initializes, liquid crystal parameter initializes, E2PROM initializes.Then call and power on certainly Inspection program, checks that LED is the most intact, then opens interruption, enters while (1) circulation.

5 parts are included: 10ms Interruption function, 50ms are regularly inside while (1) circulation Interrupt function, 100ms Interruption function, 250ms Interruption function, 2s Interruption Function.

Wherein, 10ms Interruption function execution key scan and operation, LCD liquid crystal display screen are certainly The function of lock；50ms Interruption function performs self-checking function；100ms Interruption function Perform the function of relay delayed alarm output；250ms Interruption function mainly performs data Gather, data calculate, LCD shows, breakdown judge, malfunction coefficient, Failure elimination, fault The function of fixed screen；2s Interruption function performs the function of LCD Refresh Data.

If timing Canis familiaris L., external circuit can not be fed to outer watchdog circuit in while (1) circulation Will be resetted MCU, and program restarts to perform.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this reality With novel, all within spirit of the present utility model and principle, any amendment of being made, equivalent Replacement, improvement etc., within should be included in protection domain of the present utility model.

Claims (9)

1. the automatic data-logger of digitized delivery temperature, it is characterised in that bag Include:

Processor, the control panel being connected electrically, parameter storage, display and relay Warning circuit；

Temperature sensor, data converter and the described processor being sequentially connected electrically；

Power module；

Described processor receives the numeral letter of the temperature sensor value of described data converter conversion Number, in described display displays temperature information, and when judging equipment fault, continue also by described Electrical equipment warning circuit output alarm signal is to host computer.

Device the most according to claim 1, it is characterised in that also include and described place The LED alarm lamp of reason device electrical connection, it is judged that also control described LED report during equipment fault Alert display lamp is lighted accordingly.

Device the most according to claim 2, it is characterised in that described temperature sensor Gather multichannel cylinder, the temperature of multichannel turbine respectively；

Described LED alarm lamp includes that the most corresponding temperature cylinder high fault, temperature cylinder are low Fault, turbine temperature high fault, the low fault of turbine temperature, meansigma methods high fault, absolute error High fault, the LED of disconnected even fault.

Device the most according to claim 3, it is characterised in that described parameter storage Including: storage is used for judging that temperature cylinder high fault, the low fault of temperature cylinder, turbine temperature are high The low fault of fault, turbine temperature, meansigma methods high fault, the temperature parameter of absolute error high fault The chip M24C01 of threshold value.

Device the most according to claim 3, it is characterised in that described temperature sensor Including the MAX6675 temperature acquisition chip gathering multichannel K-type thermocouple signal；Described data Transducer includes multichannel data change-over circuit.

Device the most according to claim 1, it is characterised in that described processor includes: MSP430F149 type single-chip microcomputer.

Device the most according to claim 1, it is characterised in that also include and processor The watchdog circuit of electrical connection, for sending reset signal to described process during operation irregularity Device.

Device the most according to claim 1, it is characterised in that described alarm relay Circuit includes: transport and placing device, audion and the relay being sequentially connected electrically.

Device the most according to claim 1, it is characterised in that described power module bag Include protection circuit, filter circuit and the DC/DC module being sequentially connected electrically, for 48V is straight Circulation 12V direct current output, and

Filter circuit, voltage stabilizing chip and the filter circuit being sequentially connected electrically, for by described 12V Direct current turns the output of 3.3V direct current.