CN109683043A - It is a kind of to minimize wireless polarity check instrument and solenoid valve polarity test system - Google Patents
It is a kind of to minimize wireless polarity check instrument and solenoid valve polarity test system Download PDFInfo
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- CN109683043A CN109683043A CN201811620981.4A CN201811620981A CN109683043A CN 109683043 A CN109683043 A CN 109683043A CN 201811620981 A CN201811620981 A CN 201811620981A CN 109683043 A CN109683043 A CN 109683043A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The embodiment of the present invention provides a kind of wireless polarity check instrument of miniaturization and solenoid valve polarity test system.Minimizing wireless polarity check instrument includes: magnetic induction module, and when solenoid closure or opening, induced magnetic field changes, output magnetic signal to data acquisition module；Data acquisition module receives magnetic signal and generates acoustical signal, handled acoustical signal and magnetic signal and be converted to digital sound signal and magnetic signal, digital signal is exported to control module；Control module is handled digital sound signal and magnetic signal based on home control network communication protocol, obtains the maximum value and minimum value of digital sound signal and magnetic signal, and export to radio-frequency module；Radio-frequency module, receives the information of control module output, and is transmitted to wireless base station.Due to judging whether electromagnetism valve polarity correct by acoustical signal and magnetic signal, be physically easier to perform compared to traditional method, reliability it is higher.
Description
Technical field
The present embodiments relate to polarity test technical field more particularly to a kind of wireless polarity check instrument of miniaturization and electricity
Magnet valve polarity test system.
Background technique
Solenoid valve is that electromagnetically controlled industrial equipment for controlling the automatic foundamental element of fluid belongs to actuator.
Direction, flow, speed and the other parameters of medium are adjusted in industrial control system.Solenoid valve can cooperate different electricity
Expected control is realized on road, and the precision and flexibility that control can guarantee.There are many kinds of solenoid valves, different solenoid valves
It plays a role in the different location of control system.The most commonly used is check valve, safety valve, directional control valve, speed-regulating valves etc..
The switch state that carrier rocket or guided missile repair attitude control engine solenoid valve by controlling end controls flight attitude,
Can whether electromagnetism valve polarity correctly directly affects carrier rocket or guided missile run according to predetermined running track, therefore, test electricity
The extreme meaning of magnet valve is great.
Detection electromagnetism valve polarity uses " vibratory drilling method " or " pneumatic process " mostly at present." vibratory drilling method " according to solenoid valve open or
When closure, the vibration signal of solenoid valve relevant range is measured, setting vibration level threshold value carries out polarity judgement.But " vibratory drilling method "
When test, vibration signal has unstability, is easy to produce erroneous judgement." pneumatic process " is surveyed when being opened and closed according to solenoid valve
Pressure signal judges electromagnetism valve polarity according to pressure changing at amount solenoid valve, and when still " pneumatic process " is tested, early period is needed
It is filled with associated gas, larger workload is not easy to measure.Therefore, the electromagnetism valve polarity judgment technology that use is at low cost, easily measures
Be current industry it is urgently to be resolved need project.
Summary of the invention
In view of the problems of the existing technology, the embodiment of the present invention provides a kind of wireless polarity check instrument of miniaturization, acquisition
The acoustical signal and magnetic signal generated when solenoid closure and opening, obtains the extreme value of signal, and wirelessly send.
Based on wireless polarity check instrument is minimized, the embodiment of the present invention also provides a kind of solenoid valve polarity test system, leads to
It crosses and is compared the extreme value of acoustical signal and magnetic signal with threshold value, judge whether electromagnetism valve polarity is correct.
In a first aspect, the embodiment of the present invention provides a kind of wireless polarity check instrument of miniaturization, comprising:
Magnetic induction module, for the induced magnetic field variation when solenoid closure or opening, output magnetic signal to data is acquired
Module；
Data acquisition module, for detect solenoid closure or open when sound and generate acoustical signal, to the sound believe
Number digital sound signal is handled and be converted to, the digital sound signal is exported to control module；And
For receiving the magnetic signal, digital magnetic signal is handled the magnetic signal and is converted to, by the number
Magnetic signal is exported to control module；
Control module is obtained for being handled based on home control network communication protocol the digital sound signal and digital magnetic signal
The maximum value of the digital sound signal and the maximum value and minimum value of minimum value and the digital magnetic signal are obtained, and is exported extremely
Radio-frequency module；
Radio-frequency module for receiving the information of the control module output, and transmits the information to wireless base station.
Second aspect, the embodiment of the present invention provide a kind of test solenoid valve polar test macro, including the present invention is implemented
The wireless polarity check instrument of miniaturization and wireless base station that example provides, the somascope send the digital sound to wireless base station
The maximum value and minimum value of the maximum value and minimum value of signal and the digital magnetic signal；
The wireless base station is based on acoustical signal preset first threshold value, second threshold is preset based on magnetic signal, when the number
The maximum value or minimum value of acoustical signal are more than the first threshold, and the maximum value of the digital magnetic signal or minimum value also surpass
When crossing the second threshold, judge that the polarity of solenoid valve is correct.
It is provided in an embodiment of the present invention to minimize wireless polarity check instrument and solenoid valve polarity test system, detect solenoid valve
The acoustical signal and magnetic signal generated when opening and closing, and it is translated into digital signal, digital sound is obtained by control module
The maximum value and minimum value of signal and digital magnetic signal, and it is wirelessly sent to telepoint base station, telepoint base station will be believed
Number maximum value and minimum value be compared with threshold value, to judge whether the polarity of solenoid valve correct, compared to previous " vibration
Method " and " pneumatic process ", in the way of acoustical signal and magnetic signal, it is easier to operate, reliability it is higher.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, embodiment will be described below
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is some realities of the invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural block diagram for the wireless polarity check instrument of miniaturization that first embodiment of the invention provides；
Fig. 2 is the structural schematic diagram for the wireless polarity check instrument of miniaturization that first embodiment of the invention provides；
Fig. 3 is the structural block diagram for the data acquisition module that first embodiment of the invention provides；
Fig. 4 is the structural block diagram for the control module that first embodiment of the invention provides；
Fig. 5 is the structural block diagram for the solenoid valve polarity test system that second embodiment of the invention provides.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
It is larger that the solenoid valve of the attitude control engine changes of magnetic field before and after closure and opening is repaired at carrier rocket or guided missile end, and
Biggish sound can be generated before and after closure and opening, therefore by judging that electromagnetism valve polarity is using acoustical signal and magnetic signal
It is no correct, compared to previous " vibratory drilling method " and " pneumatic process ", it is easier to operate, reliability it is higher.
Fig. 1 shows the structural block diagram of the wireless polarity check instrument of miniaturization of first embodiment of the invention offer.Such as Fig. 1 institute
Show, minimizing wireless polarity check instrument 1 includes magnetic induction module 2, data acquisition module 3, control module 4, radio-frequency module 5 and electricity
Source 6.
Wherein, variation of the magnetic induction module 2 for the induced magnetic field when solenoid closure or opening, and export magnetic signal extremely
Data acquisition module.
Data acquisition module 3, the sound issued when for detecting solenoid closure or opening simultaneously generates acoustical signal, to described
Acoustical signal is handled, and is converted to digital sound signal, and then, the digital sound signal is exported to control module 4.Meanwhile
The data acquisition module 3 is also used to receive the magnetic signal, is handled the magnetic signal and be converted to digital magnetic signal,
Then, the digital magnetic signal is exported to control module 4.
Control module 4 is obtained for being handled based on home control network communication protocol the digital sound signal and digital magnetic signal
The maximum value of the digital sound signal and the maximum value and minimum value of minimum value and the digital magnetic signal are obtained, and is exported extremely
Radio-frequency module 5.
Radio-frequency module 5, the information exported for receiving the control module 3, and transmit the information to wireless base station.
Power supply 6, for providing electric energy to above-mentioned each module.
The wireless polarity check instrument 1 of miniaturization that first embodiment of the invention provides, detection solenoid valve produce when opening and closing
Raw acoustical signal and magnetic signal, and it is translated into digital signal, digital sound signal and digital magnetic letter are obtained by control module
Number maximum value and minimum value, and telepoint base station is wirelessly sent to, compared to previous " vibratory drilling method " and " air pressure
Method ", in the way of acoustical signal and magnetic signal, it is easier to operate, reliability it is higher.
Fig. 2 shows the specific structures for the wireless polarity check instrument of miniaturization that first embodiment of the invention provides.Such as Fig. 2 institute
Show, the wireless polarity check instrument 1 of miniaturization is adopted including polarity check instrument shell 7,14250 batteries 8, magnetic induction module 2, data
Collect module 3, control module 4, radio-frequency module 5, polarity check instrument upper cover 9.Wherein, it data acquisition module 3, control module 4 and penetrates
Frequency module 5 uses stacked structure, and magnetic sensing module 2 has saved space among data acquisition module 3 and control module 4.
Data acquisition module 3 and control module 4 are semicircular structure, and radius is 17 millimeters, magnetic induction module having a size of
8.5 millimeters × 6.6 millimeters.
Magnetic induction module 2 can use magnetoresistive sensor, should guarantee that magnetoresistive sensor is vertical with magnetic induction line direction as far as possible, with
Ensure that the magnetic signal detected becomes apparent.
Data of 5 primary recipient of radio-frequency module from control module 4, and be sent wirelessly to the wireless base of distal end
It stands, the working frequency range of radio-frequency module 5 is 2.4GHz.By radio-frequency devices modularized design in first embodiment of the invention, also for
Polarity check instrument is switched into other frequency ranges, such as 915MHz, 433MHz etc. convenient for subsequent.
14250 batteries 8 provide electric energy for entire somascope, the openable upper cover when not enough power supply, quick-replaceable battery.
The wireless polarity check instrument of miniaturization that first embodiment of the invention provides, compact, using stacked structure.Nothing
Line polarity check instrument diameter dimension matches solenoid valve bore, not only can be convenient after installation and carries out Check up polarity whenever and wherever possible, and
And certain protective action is also functioned to solenoid valve.
The wireless polarity check instrument of miniaturization that first embodiment of the invention provides transmits information using wireless communication mode,
Manpower and material resources have not only been saved compared to traditional wire measurement method, but also have improved testing efficiency.
The wireless polarity check instrument of miniaturization that first embodiment of the invention provides, in the solenoid valve of detection different model product
When, the shape of polarity check instrument can be flexibly changed, or increase corresponding rubber stopper Matching installation in outside, it is versatile,
Flexibly use.
Fig. 3 shows the structure of the data acquisition module in micro radio polarity check instrument provided in an embodiment of the present invention
Block diagram.
As shown in figure 3, data acquisition module 3 includes two branches, first branch is Underwater Acoustic channels branch, Article 2
Branch is that magnetic signal handles branch.Underwater Acoustic channels branch includes sonic transducer 10, the filtering of the first pre-amplification circuit 11, first
Circuit 12 and the first A/D converter circuit 13.Wherein, sonic transducer 10 is for detecting the sound that solenoid valve is generated in closure and opening
Sound, and acoustical signal is exported, which is analog signal.First pre-amplification circuit 11 improves the amplification of received acoustical signal for 0-
The voltage signal of 2.5V, and export to the first filter circuit 12.First filter circuit 12 carries out low-pass filtering to received signal
After be sent to the first A/D converter circuit 13.First A/D converter circuit 13 converts analog signals into digital signal, obtains digital sound
Signal, and export to control module 4.
It includes the second pre-amplification circuit 14, the second filter circuit 15 and the second A/D converter circuit that magnetic signal, which handles branch,
16.Wherein, the second pre-amplification circuit 11 receives the magnetic signal that magnetic induction module 2 exports, which is differential signal, and should
The voltage signal that differential signal amplification conditioning is 0-2.5V, and export to the second filter circuit 15.The docking of second filter circuit 15
The signal of receipts is sent to the second A/D converter circuit 16 after carrying out low-pass filtering.Second A/D converter circuit 16 converts analog signals into
Digital signal obtains digital magnetic signal, and exports to control module 4.
Because of different test zones, there is certain deviation in earth's magnetic field, therefore the data acquisition module 3 in the embodiment of the present invention
It can also include zeroing circuit 17.The zeroing circuit 17 is mainly responsible for the adjustment of magnetic signal zero-bit, and zeroing circuit 17 passes through I2C bus
It is connected with control module 4, it is ensured that under different measurement environment the initial value of magnetic signal is located at amplified signal in 1.25V or so
Intermediate value near.
In first embodiment of the invention, second-order low-pass filter is can be used in the first filter circuit 12 and the second filter circuit 15
MEMS (MEMS) sonic transducer can be used in device, sonic transducer 10.In addition, the first A/D converter circuit 11 and the second AD conversion
Circuit 16 is 18 low-power consumption A/D chips, and two-way A/D chip connects in a daisy chain fashion, finally with the side SPI (Serial Peripheral Interface (SPI))
Formula output.
Fig. 4 shows the structural frames of the control module in micro radio polarity check instrument provided in an embodiment of the present invention
Figure.
As shown in figure 4, control module 4 includes that processor 18, electric power management circuit 19, data storage circuitry 20 and USB connect
Mouth circuit 21.Wherein, processor 18 using STM32 low power processor and runs Zigbee (purple honeybee) home control network communication protocol, institute
The digital sound signal and digital magnetic signal for stating 18 pairs of processor inputs carry out operation, are converted into volume (dB) and magnetic flux
(Φ) is handled, and obtains the maximum value and minimum value of every 1 millisecond of digital sound signal and digital magnetic signal respectively, and by the information
It is sent in the base station of distal end by radio-frequency module 5.
The battery of electric power management circuit 19 and 14,250 8 is connected, by voltage stabilization 3.3V be entire somascope power.Also,
When minimizing wireless polarity check instrument 1 and not working for a long time, electric power management circuit 19, which can control instrument and enter low-power consumption, stops
Sleep mode.
Data storage circuitry 20 is high-capacity FLASH (flash memory), for storing the sound acquired in real time, magnetic initial data, with
It prevents complex environment inside carrier rocket or guided missile from influencing wireless telecommunications quality and leads to the loss of data of real-time Transmission, be subsequent
Data analysis increases protection.
USB (universal serial bus) interface circuit 21 is mainly used for data downloading, and when wireless somascope built-in power electricity
It can be the power supply of polarity check instrument by USB interface when measuring deficiency and being inconvenient to replace internal cell.
Miniaturization of the invention is wireless, and that polarity check instrument has the characteristics that is easy to operate, small in size, can be applied to aviation, boat
It, the electromagnetism valve polarity judgement of the fields attitude control engine such as weapons, have broad application prospects.
Fig. 5 shows the solenoid valve polarity test system of second embodiment of the invention offer.The system includes the present invention the
The wireless polarity check instrument 1 of miniaturization and wireless base station 22 that one embodiment provides.
As shown in figure 5, minimizing wireless polarity check instrument 1 for the maximum value and minimum value of digital sound signal, and number
The maximum value and minimum value of magnetic signal are sent in the wireless base station 22 of distal end.The is preset with based on acoustical signal in wireless base station 22
One threshold value is preset with second threshold based on magnetic signal.When the maximum value of digital sound signal or minimum value are greater than first threshold, or
When the maximum value or minimum value of person's number magnetic signal are greater than second threshold, the polarity that wireless base station 22 judges solenoid valve can trigger
It is whether correct.
Table 1 shows the relationship between signal comparison result and the judgement of electromagnetism valve polarity.As shown in table 1, when digital sound is believed
Number maximum value or minimum value be more than first threshold, and the maximum value of digital magnetic signal or minimum value are also above second threshold
When, illustrate electromagnetism valve events, the polarity of solenoid valve is correct.When the maximum value or minimum value of digital sound signal are less than the first threshold
Value, and when the maximum value of digital magnetic signal or minimum value are also less than second threshold, illustrate solenoid valve attonity.When digital sound
The maximum value or minimum value of signal are more than first threshold, and the maximum value or minimum value of digital magnetic signal are less than second threshold
When, or the maximum value or minimum value of digital magnetic signal are more than second threshold, and the maximum value of digital sound signal or minimum value are not
When more than first threshold, all illustrate to need further to test.
Table 1
| Acoustical signal is more than threshold value | Magnetic signal is more than threshold value | Conclusion |
| × | × | Solenoid valve attonity |
| × | √ | To further test |
| √ | × | To further test |
| √ | √ | Electromagnetism valve events |
Electromagnetism valve polarity of the invention " is shaken using acoustical signal and magnetic signal progress polarity judgement with traditional at this time by system
Dynamic method " is compared with " pneumatic process ", and polarity judgement is reliable, can be applied to the electromagnetism of the fields such as Aeronautics and Astronautics, weapons attitude control engine
Valve polarity judgement, has broad application prospects and good economic benefit.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be.Some or all of the modules therein can be selected according to the actual needs
It achieves the purpose of the solution of this embodiment.Those of ordinary skill in the art are without paying creative labor, it can
It understands and implements.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of wireless polarity check instrument of miniaturization characterized by comprising
Magnetic induction module, for the induced magnetic field variation when solenoid closure or opening, output magnetic signal to data acquisition module；
Data acquisition module, for detect solenoid closure or open when sound and generate acoustical signal, to the acoustical signal into
Row handles and is converted to digital sound signal, and the digital sound signal is exported to control module；And
For receiving the magnetic signal, digital magnetic signal is handled the magnetic signal and be converted to, the digital magnetic is believed
Number output is to control module；
Control module obtains institute for handling based on home control network communication protocol the digital sound signal and digital magnetic signal
The maximum value of digital sound signal and the maximum value and minimum value of minimum value and the digital magnetic signal are stated, and is exported to radio frequency
Module；
Radio-frequency module for receiving the information of the control module output, and transmits the information to wireless base station.
2. somascope according to claim 1, which is characterized in that carrying out processing to the acoustical signal includes believing the sound
It number amplifies and is filtered；
Carrying out processing to the magnetic signal includes that the magnetic signal is amplified and is filtered.
3. somascope according to claim 1, which is characterized in that the data acquisition module includes:
Sonic transducer, sound when for detecting solenoid closure or open, generates acoustical signal；
First pre-amplification circuit amplifies processing for receiving the acoustical signal, and to acoustical signal, generates the sound letter of amplification
Number；
First filter circuit for receiving amplified acoustical signal, and is filtered, and generates filtered acoustical signal；
First digital analog converter generates digital sound signal, and by the number for filtered acoustical signal to be carried out digital-to-analogue conversion
Word acoustical signal is exported to the control module.
4. somascope according to claim 3, which is characterized in that the data acquisition module further include:
Second pre-amplification circuit for receiving the magnetic signal from the magnetic induction module, and amplifies place to magnetic signal
Reason, generates the magnetic signal of amplification；
Second filter circuit for receiving amplified magnetic signal, and is filtered, and generates filtered magnetic signal；
Second digital analog converter generates digital sound signal, and by the number for filtered acoustical signal to be carried out digital-to-analogue conversion
Word acoustical signal is exported to the control module.
5. somascope according to claim 4, which is characterized in that the data acquisition module further includes zeroing circuit, institute
It states zeroing circuit to connect with second pre-amplification circuit, for the initial value of the magnetic signal to be adjusted to the one of value of magnification
Half.
6. somascope according to claim 3 or 4, which is characterized in that first filter circuit and second filtering
Circuit is all made of second-order low-pass filter.
7. somascope according to claim 1, which is characterized in that the control module includes processor, power management electricity
Road, data storage circuitry and Universal Serial Bus Interface circuit；
Processor, for being handled based on home control network communication protocol the digital sound signal and digital magnetic signal, described in acquisition
The maximum value and minimum value of the maximum value and minimum value of digital sound signal and the digital magnetic signal；
Electric power management circuit is powered for stablizing the voltage of battery for the control module；
Data storage circuitry, for storing the original sound signals and magnetic signal of detection；
Universal Serial Bus Interface circuit is downloaded for data, and passes through the Universal Serial Bus Interface when the power is insufficient
Circuit is control module power supply.
8. somascope according to claim 1, which is characterized in that the data acquisition module, control module and radio frequency mould
Block uses stacked structure, and the magnetic induction module is embedded between the data acquisition module and control module.
9. somascope according to claim 8, which is characterized in that the data acquisition module and control module are semicircle
Structure, radius are 17 millimeters, and the size of the magnetic induction module is 8.5 millimeters × 6.6 millimeters.
10. a kind of polar test macro of test solenoid valve, which is characterized in that including described in claim 1-16 any one
Wireless polarity check instrument and wireless base station are minimized, the somascope sends the digital sound signal most to wireless base station
The maximum value and minimum value of big value and minimum value and the digital magnetic signal；
The wireless base station is based on acoustical signal preset first threshold value, presets second threshold based on magnetic signal, when the digital sound is believed
Number maximum value or minimum value be more than the first threshold, and the maximum value of the digital magnetic signal or minimum value are also above institute
When stating second threshold, judge that the polarity of solenoid valve is correct.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620981.4A CN109683043A (en) | 2018-12-28 | 2018-12-28 | It is a kind of to minimize wireless polarity check instrument and solenoid valve polarity test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620981.4A CN109683043A (en) | 2018-12-28 | 2018-12-28 | It is a kind of to minimize wireless polarity check instrument and solenoid valve polarity test system |
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| CN109683043A true CN109683043A (en) | 2019-04-26 |
Family
ID=66190191
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|---|---|---|---|
| CN201811620981.4A Pending CN109683043A (en) | 2018-12-28 | 2018-12-28 | It is a kind of to minimize wireless polarity check instrument and solenoid valve polarity test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983504A (en) * | 2020-08-10 | 2020-11-24 | 上海空间推进研究所 | Intelligent polarity testing system and method based on three-axis gyroscope |
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Application publication date: 20190426 |