CN104597080A - System and method for testing cooling performance of quenching medium based on ZigBee - Google Patents
System and method for testing cooling performance of quenching medium based on ZigBee Download PDFInfo
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- CN104597080A CN104597080A CN201510041474.5A CN201510041474A CN104597080A CN 104597080 A CN104597080 A CN 104597080A CN 201510041474 A CN201510041474 A CN 201510041474A CN 104597080 A CN104597080 A CN 104597080A
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Abstract
The invention discloses a system and a method for testing the cooling performance of a quenching medium based on ZigBee. The system for testing the cooling performance of the quenching medium comprises a data processing terminal and at least one temperature acquisition terminal, wherein data is wirelessly transmitted between the temperature acquisition terminal and the data processing terminal. According to the system and the method for testing the cooling performance of the quenching medium, temperature data is wirelessly transmitted. Temperature data of the quenching medium is acquired by virtue of the convenient and efficient temperature acquisition terminal which has the advantages of relatively high sampling precision and high sampling rate and can immediately and accurately reflect the temperature change of the quenching medium in the cooling process. Moreover, interference of the field environment and the strong current apparatuses (contactors and circuit breakers) on sensor signals can be eliminated to the maximum extent.
Description
Technical field
The present invention relates to a kind of hardening media cooling performance test macro based on ZigBee wireless technology, this system adopts low power processor and efficient ZigBee Radio Transmission Technology, belongs to radio communication and embedded system technology field.
Background technology
The heat treatment requirements amount of part constantly increases and requires the control of its Technology for Heating Processing more accurate.Wherein urgent, the quenching part that to be also more rambunctious be in Technology for Heating Processing.If hardening media is selected inappropriate, or observe incorrect to hardening media cooling characteristics, product may not reach requirement, thus causes certain loss.These losses comprise correction, even waste product and delay delivery date of doing over again, and sometimes even can lose credit.Heat treated key is just the cooling performance understanding hardening media.Want the cooling performance obtaining hardening media, just must know the temperature variation of the hardening media when quenching, thus draw out cooling towers group and the cooling rate curve of hardening media.Therefore, be quite significant to the temperature acquisition of hardening media.
Existing hardening media cooling performance test macro adopts wired mode to realize the interconnection of thermocouple temperature measuring apparatus and Test Host usually, easily the dangerous situations such as hardening media knocks over, data line burns, operating personnel scald occurs; And be subject to external interference and cause test data deviation, thus obtain cooling curve and cooling rate curve inaccurate, repeatability be deteriorated; Wired mode host computer system can only test the hardening media cooling characteristics of a point.If adopt ZigBee wireless transmission, then can handling safety reliable, data transmission antijamming capability is strong and can realize multiple test point and carry out simultaneously.And the data processing terminal of existing equipment adopts serial ports to be connected with computer and to carry out statistical conversion, and both needs are started shooting simultaneously, troublesome poeration and the easy obliterated data of serial ports; If adopt USB flash disk data to be copied in the mode of file, can at any time by data importing computer, very convenient.
Summary of the invention
The object of this invention is to provide a kind of hardening media cooling performance test macro and method of testing, achieve multimetering quenching process temperature, and improve the precision of hardening media cooling towers group and cooling rate curve.
In order to solve the problems of the technologies described above, the invention provides a kind of hardening media cooling performance test macro, comprising: data processing terminal and at least one temperature acquisition terminal, between wherein said temperature acquisition terminal and data processing terminal, pass through wirelessly transmitting data.
Further, described temperature acquisition terminal comprises: temperature collect module, Signal-regulated kinase, A/D modular converter, the first ZigBee module and first processor module; Described temperature collect module is connected with the signal input part of processor module by Signal-regulated kinase, A/D modular converter, and described processor module is suitable for the temperature data of temperature collect module collection to be sent to data processing terminal by ZigBee module.
Further, described data processing terminal comprises: the second ZigBee module, the second processor module, data memory module, data disaply moudle; Described second ZigBee module is suitable for accepting temperature data to the second processor module, and described second processor module is suitable for the cooling towers group and the cooling rate curve that described temperature data are converted to hardening media; And by this cooling towers group and cooling rate curve temporally function be stored in described data memory module; And described data disaply moudle is touch-screen, to show described cooling towers group and cooling rate curve, or input corresponding steering order; And/or described second processor module is also connected with a USB module, be suitable for being connected with outer memory module by this USB module.
Further, described temperature acquisition terminal also comprises: power management module, and described power management module is suitable for detecting accumulator electric-quantity in real time, and sends charge reminder when storage battery quantity not sufficient.
Another aspect, present invention also offers a kind of hardening media cooling performance method of testing, comprising:
By wireless, data between temperature acquisition terminal and data processing terminal are transmitted.
Further, temperature collect module in described temperature acquisition terminal is nickel alloy probe, the method of testing of described hardening media cooling performance method of testing comprises: described nickel alloy probe is heated to more than design temperature in stove, then puts into hardening media to be measured; When in stove, temperature drops to design temperature, after record probe heart portion temperature variation data is sent to data processing terminal, and the function of binding time draws cooling towers group and the characteristics of cooling curve of hardening media.
The invention has the beneficial effects as follows, the invention provides a kind of the hardening media cooling performance test macro and the method that are suitable for wireless transmission temperature data, achieve the temperature data acquisition of hardening media by conveniently temperature acquisition terminal; It is higher that temperature acquisition terminal has sampling precision, and sampling rate is advantage faster, can temperature variation in reflection hardening media cooling procedure promptly and accurately; And the interference that site environment and forceful electric power device (contactor, isolating switch) etc. cause sensor signal can be eliminated to the full extent; This hardening media cooling performance test macro has parameter adjustment function compatible and perfect preferably, is applicable to the hardening liquid of multiple brand and producer; Possess data wireless transfer function, multiple temperature acquisition terminal can run simultaneously, meet the requirement of multimetering.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 shows the theory diagram of temperature acquisition terminal of the present invention;
Fig. 2 shows the theory diagram of data processing terminal of the present invention.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment 1
Fig. 1 shows the theory diagram of temperature acquisition terminal of the present invention.
Fig. 2 shows the theory diagram of data processing terminal of the present invention.
As depicted in figs. 1 and 2, a kind of hardening media cooling performance test macro of the present invention, comprising:
Data processing terminal and at least one temperature acquisition terminal, pass through wirelessly transmitting data between wherein said temperature acquisition terminal and data processing terminal.
Further, described temperature acquisition terminal comprises: temperature collect module, Signal-regulated kinase, A/D modular converter, the first ZigBee module and first processor module; Described temperature collect module is connected with the signal input part of processor module by Signal-regulated kinase, A/D modular converter, and described processor module is suitable for the temperature data of temperature collect module collection to be sent to data processing terminal by ZigBee module.
Further, described data processing terminal comprises: the second ZigBee module, the second processor module, data memory module, data disaply moudle; Described second ZigBee module is suitable for accepting temperature data to the second processor module, described second processor module is suitable for the cooling towers group and the cooling rate curve that described temperature data are converted to hardening media, and by this cooling towers group and cooling rate curve temporally function be stored in described data memory module; And described data disaply moudle is touch-screen, to show described cooling towers group and cooling rate curve, or input corresponding steering order; And/or described second processor module is also connected with a USB module, be suitable for being connected with outer memory module by this USB module.
Wherein, first, second processor module described such as but not limited to employing single-chip microcomputer, or with the AVR single chip of AD function; First, second ZigBee module adopts CC2420 radio frequency chip, its by spi bus and processor module interconnected, support 2.4GHz ZigBee/IEEE802.15.4 standard, the data being realized temperature acquisition terminal and data processing terminal by wireless sensor network are passed mutually.
Described temperature acquisition terminal also comprises: power management module, and described power management module is suitable for detecting accumulator electric-quantity in real time, and sends charge reminder when storage battery quantity not sufficient.Concrete, described accumulator can be, but not limited to employing two and saves 3.6V lithium battery series-fed, exports 3.3V and 5V voltage, for the modules of temperature acquisition terminal is powered by voltage conversion circuit.
Embodiment 2
On embodiment 1 basis, present invention also offers a kind of hardening media cooling performance method of testing, comprising: by wireless, data between temperature acquisition terminal and data processing terminal are transmitted.
Further, temperature collect module in described temperature acquisition terminal is nickel alloy probe, the method of testing of described hardening media cooling performance method of testing comprises: described nickel alloy probe is (concrete, adopt the nickel alloy of armoured K-thermocouple probe) in stove, be heated to more than design temperature (such as 850 DEG C), then put into the hardening media to be measured (quenching oil) of certain volume; When temperature drops to described design temperature (850 DEG C), after record probe heart portion temperature variation data is sent to data processing terminal, and the function of binding time draws cooling towers group and the characteristics of cooling curve of hardening media.Concrete implementation process comprises: first nickel alloy probe temperature is heated to more than 850 DEG C, puts it in hardening media; When temperature drops to 850 DEG C, utilize the Seebeck effect of K type thermopair, the voltage signal real time temperature of hardening media being converted to millivolt level exports, and carries out amplification and the integration of signal through Signal-regulated kinase; Gained signal enters the A/D modular converter of processor module, is translated into digital signal; Data processing terminal is sent the data to finally by the first Zigbee module; Described data processing terminal receives the data of temperature acquisition terminal transmission by the second ZigBee module, data preparation is preserved, and draws out hardening media cooling procedure curve and cooling rate curve.
Of the present invention based on the hardening media cooling performance test macro of ZigBee and the principle of work of method of testing as follows:
Temperature collect module: the voltage signal the temperature inversion of hardening media being millivolt level.
Signal-regulated kinase: the millivolt level signal of temperature collect module is carried out filtering and amplification, be converted into a road volt magnitude voltage signals, send into signal sampling module, enlargement factor can adjust by potentiometer.
A/D modular converter: 10 sampling precisions, gathers voltage signal, voltage signal is converted into the digital signal between 0-1024, sends into first processor module and processes.
Described first processor module is also connected with key control module, concrete, and by film key and de-twitter circuit composition key control module, the startup for opertaing device is given and resetted.
First processor module: adopt AVR single chip as CPU module, realize:
1) temperature signal of Received signal strength sampling module, carries out software filtering, process and analysis to its signal;
2) according to the procotol made by oneself, real time temperature data are sent to ZigBee sending module, sends to master controller by ZigBee-network;
3) receive all kinds of instruction inputs of key control module, carry out the setting of parameters;
Display module: can touch-screen display module be adopted, be mainly used in show experiment time real-time temperature values, setting parameter state time all kinds of parameter value and experiment terminate rear hardening media cooling procedure curve and cooling rate curve.
Data processing terminal carries out input and the amendment of all kinds of parameter by touch-screen.
Data memory module: adopting Large Copacity storage chip as memory module, for storing the weight signal within a period of time, inquiring about for the machine.
USB module: the data of collection are dumped on computer by USB flash disk.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on instructions, must determine its technical scope according to right.
Claims (6)
1. a hardening media cooling performance test macro, is characterized in that, comprising:
Data processing terminal and at least one temperature acquisition terminal, wherein
Wirelessly transmitting data is passed through between described temperature acquisition terminal and data processing terminal.
2. hardening media cooling performance test macro according to claim 1, is characterized in that, described temperature acquisition terminal comprises: temperature collect module, Signal-regulated kinase, A/D modular converter, the first ZigBee module and first processor module;
Described temperature collect module is connected with the signal input part of processor module by Signal-regulated kinase, A/D modular converter, and described processor module is suitable for the temperature data of temperature collect module collection to be sent to data processing terminal by ZigBee module.
3. hardening media cooling performance test macro according to claim 2, it is characterized in that, described data processing terminal comprises: the second ZigBee module, the second processor module, data memory module, data disaply moudle;
Described second ZigBee module is suitable for accepting temperature data to the second processor module, and described second processor module is suitable for the cooling towers group and the cooling rate curve that described temperature data are converted to hardening media; And by this cooling towers group and cooling rate curve temporally function be stored in described data memory module; And
Described data disaply moudle is touch-screen, to show described cooling towers group and cooling rate curve, or inputs corresponding steering order; And/or
Described second processor module is also connected with a USB module, is suitable for being connected with outer memory module by this USB module.
4. according to the arbitrary described hardening media cooling performance test macro of claim 1-3, it is characterized in that, described temperature acquisition terminal also comprises: power management module, and described power management module is suitable for detecting accumulator electric-quantity in real time, and sends charge reminder when storage battery quantity not sufficient.
5. a hardening media cooling performance method of testing, comprising:
By wireless, data between temperature acquisition terminal and data processing terminal are transmitted.
6. hardening media cooling performance method of testing according to claim 5, is characterized in that, the temperature collect module in described temperature acquisition terminal is nickel alloy probe,
The method of testing of described hardening media cooling performance method of testing comprises:
Described nickel alloy probe is heated to more than design temperature in stove, then puts into hardening media to be measured;
When in stove, temperature drops to design temperature, after record probe heart portion temperature variation data is sent to data processing terminal, and the function of binding time draws cooling towers group and the characteristics of cooling curve of hardening media.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111398336A (en) * | 2020-02-27 | 2020-07-10 | 南京科润工业介质股份有限公司 | Quenching medium cooling performance's on-line monitoring system |
| WO2021168961A1 (en) * | 2020-02-27 | 2021-09-02 | 南京科润工业介质股份有限公司 | Test device for thermal stability of quenching medium |
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| CN88102685A (en) * | 1988-05-04 | 1988-11-09 | 安徽省机械科学研究所 | Quenched medium cooling performance measurer using double laser beams |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111398336A (en) * | 2020-02-27 | 2020-07-10 | 南京科润工业介质股份有限公司 | Quenching medium cooling performance's on-line monitoring system |
| WO2021168960A1 (en) * | 2020-02-27 | 2021-09-02 | 南京科润工业介质股份有限公司 | Online monitoring system for cooling performance of quenching medium |
| WO2021168961A1 (en) * | 2020-02-27 | 2021-09-02 | 南京科润工业介质股份有限公司 | Test device for thermal stability of quenching medium |
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Application publication date: 20150506 |