CN109782039A - A kind of probe signal automatic identifying method, equipment, system and probe - Google Patents
A kind of probe signal automatic identifying method, equipment, system and probe Download PDFInfo
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- CN109782039A CN109782039A CN201910206365.2A CN201910206365A CN109782039A CN 109782039 A CN109782039 A CN 109782039A CN 201910206365 A CN201910206365 A CN 201910206365A CN 109782039 A CN109782039 A CN 109782039A
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- 230000005540 biological transmission Effects 0.000 claims description 33
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 14
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Abstract
The present invention relates to a kind of probe signal automatic identifying methods, comprising: reads the gear level of probe；Obtain the range data of the probe corresponding with the gear level；The probe is controlled according to the range data and exports corresponding analog voltage signal, and the range data and analog voltage signal are sent to reading equipment.Used method makes multimeter or pincerlike meter no longer need to be arranged function gear and range gear through the invention, and the range data of direct automatic identification foreign current probe guarantee correct measurement data.
Description
Technical field
The invention belongs to field of current measurement, and in particular to a kind of probe signal automatic identifying method, equipment, system and spy
Head.
Background technique
Currently, the conventional measurable maximum current of multimeter is 20A on the market, the measurable maximum current of pincerlike meter is
1000A.In order to meet the measurement demand of more high current, it will usually be measured by an external current probe, so that general-purpose
Table and pincerlike meter can measure current range and be expanded within 3000A, be suitble to widely measurement scene.And it is accurate in order to obtain
Measurement data, current probe, which is typically provided three gears according to the size of required measurement electric current, indicates different range 30A/
300A/3000A, these three ranges can tri- voltage signals of corresponding output 100mV/A, 10mV/A and 1mV/A.
Also there are three different range gears for tool on the multimeter or pincerlike meter being connected from current probe, are used in measurement
Range on matching current probe realizes that measurement data is error free.But the range gear on multimeter cannot achieve automatic knowledge
Not, it needs when in use, user is judged the range gear further according to foreign current probe setting first to manually select ten thousand
The matched range needed for table or pincerlike meter.When needing repeatedly measurement, process is more many and diverse.If multimeter or pincerlike meter
On range mistake is set, the electric current of measurement will result in erroneous judgement, influences the accuracy of measurement data, it is assumed that foreign current is popped one's head in
When 3000A grades of measurement 3000A electric currents are arranged, if mistake is arranged in multimeter or pincerlike meter, correspondence can show 30A or 300A.
Therefore, this measurement method is relatively complicated and professional, and accurate measurement data can not be obtained if matching error, to measurement or
Person's experimentation brings biggish puzzlement.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of probe signal automatic identifying method, equipment, system and spies
Head, the range data that can be popped one's head in automatic identification foreign current guarantee correct acquisition measurement data.
To achieve the above object, the present invention takes following technical scheme:
One of present invention probe signal automatic identifying method characterized by comprising
Read the gear level of probe；
Obtain the range data of the probe corresponding with the gear level；
Control the corresponding analog voltage signal of probe output according to the range data, and by the range data with
And analog voltage signal is sent to reading equipment.
Above-mentioned probe signal automatic identifying method, it is preferred that the method further includes: by popping one's head in, induction coil is obtained
Measurement data is taken, controls the amplification factor of the measurement data according to the range data to export the corresponding analog voltage
Signal.
The automatic identifying method of one of present invention probe signal, comprising:
Obtain the range data and analog voltage signal of probe output；
Range is adjusted according to the range data, then the analog voltage signal is subjected to digital-to-analogue conversion to obtain measurement number
According to.
Above-mentioned probe signal automatic identifying method, it is preferred that the method also includes: institute is received by infrared receiving device
State the range data of probe output.
One of present invention probe signal automatic identification equipment, comprising:
First receiving unit and the second receiving unit, first receiving unit are used to obtain the range number of probe output
According to second receiving unit is used to obtain the analog voltage signal of the probe output；
First processing units, for being adjusted from the first receiving unit amount to obtain number of passes according to and according to the range data
The range of the equipment；
AD conversion unit, for the analog voltage signal to be carried out digital-to-analogue conversion to obtain measurement data.
Above-mentioned probe signal automatic identification equipment, it is preferred that first receiving unit is infrared receiving tube.
Above-mentioned probe signal automatic identification equipment, it is preferred that the first processing units further include: the first universal asynchronous receipts
Transmission unit is sent out, the first universal asynchronous receiving-transmitting transmission unit, which interrupts, receives the range number that first receiving unit obtains
According to.
One of present invention probe, comprising:
Third receiving unit, for reading the gear level of probe；
4th receiving unit, for obtaining the range data of the probe corresponding with the gear level；
The second processing unit exports corresponding analog voltage signal for controlling the probe according to the range data；
First transmission unit, for the range data to be sent to reading equipment；
Second transmission unit, for the analog voltage signal to be sent to reading equipment.
Above-mentioned probe, it is preferred that include: signal amplification circuit, for controlling the measurement number according to the range data
According to amplification factor to export the corresponding analog voltage signal.
One of present invention probe signal automatic recognition system, the probe signal automatic identification including any one as above
Equipment and probe.
Probe signal automatic identifying method, equipment, system and probe of the invention can be visited correctly automatic identification outside
The range data and voltage signal of head signal ensure that DATA REASONING by way of no longer needing to through artificial judgment, manually adjusting
Correctness.
Detailed description of the invention
Fig. 1 is probe signal automatic identification equipment structural schematic diagram provided by the embodiment of the present invention；
Fig. 2 is the structural schematic diagram popped one's head in provided by the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of probe signal automatic recognition system provided by the embodiment of the present invention.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
The embodiment of the present invention provides a kind of probe signal automatic identifying method, comprising:
Read the gear level of probe；
Obtain the range data of the probe corresponding with the gear level；
Control the corresponding analog voltage signal of probe output according to the range data, and by the range data with
And analog voltage signal is sent to reading equipment.
In specific embodiment, probe tool is respectively 30A, 300A, 3000A there are three gear.Different gears is corresponding not
Same gear level, the gear level are made of triad code K1, K2, K3.User fluctuates gear to 30A manually,
In 300A, 3000A on any gear, gear level corresponding with the gear that it is stirred just is formd inside probe.Therefore
By GPIO mouthfuls of reading gear level, its corresponding gear can be judged.
In embodiments of the present invention, as shown in Table 1, as the gear level K1 of the probe read, when K2, K3 are 011,
Gear corresponding to it is 30A；As the gear level K1 of the probe read, when K2, K3 are 101, corresponding to gear be
300A；The gear level K1 of the probe read, when K2, K3 are 110, corresponding to gear be 3000A.By the gear of probe
One-to-one relationship is formed between level and gear, can be existed by obtaining the gear level judgement probe of probe with this
Which it is allocated to when measurement on gear.
One gear of table and the gear level table of comparisons
| Gear | K1 | K2 | K3 |
| 30A | 0 | 1 | 1 |
| 300A | 1 | 0 | 1 |
| 3000A | 1 | 1 | 0 |
The range data of the probe corresponding with the gear level are obtained, specifically the range data and gear
Also there is one-to-one relationship between level.The preferable range data include at least: data header, range and verification
With with specific reference to shown in table two.When gear is allocated to 30A, gear level is 011, and range data are aa0x300xda.
Two gear level of table and the range data table of comparisons
| Gear | Data header | Range | Verification and |
| 30A | 0xaa | 0x30 | 0xda |
| 300A | 0xaa | 0x31 | 0xdb |
| 3000A | 0xaa | 0x32 | 0xdc |
Control the corresponding analog voltage signal of probe output according to the range data, and by the range data with
And analog voltage signal is sent to reading equipment.The preferable reading equipment can be multimeter or pincerlike meter.
Probe signal automatic identifying method described in the embodiment of the present invention, preferably, the method further includes: pass through
Induction coil of popping one's head in obtains measurement data, controls the amplification factor of the measurement data according to the range data to export correspondence
The analog voltage signal.Specifically, first obtaining the current value of testee by induction coil of popping one's head in as measurement number
According to, the amplification factor of collected measurement data is controlled further according to the range data obtained in abovementioned steps, it is final to obtain
To the analog voltage signal amplified in favor of subsequent output.Specifically, being exported respectively according to gear 30A/300A/3000A
100mV/A, 10mV/A and 1mV/A tri- current values that voltage signal obtains measurement as amplification factor that differ in size are put
Greatly, with analog voltage signal needed for final output.
In preferred embodiments of the present invention, range data and analog voltage signal are sent by the different way of outputs
To reading equipment.Specifically, analog voltage signal is transferred to reading equipment with wire transmission mode.Range data are passed through
Infrared sending method is transferred to reading equipment, with save the cost, and wire transmission mode is avoided to cause in arrangement of conductors structure
Complexity and other wireless transmission methods in radio frequency interference probe simulate voltage signal output, cause output unstable
It is fixed, to influence the normal reading of reading equipment.
In preferred embodiment, after getting the range data, interrupted by UART (universal asynchronous receiving-transmitting transmission)
The range data are sent to the infrared sending device being located on probe.
Through the foregoing embodiment can correct automatic identification external probes signal range data and voltage signal, nothing
Need to again artificial judgment, manually adjust by way of, ensure that the correctness of DATA REASONING.
Another embodiment of the present invention provides a kind of automatic identifying methods of probe signal, comprising:
Obtain the range data and analog voltage signal of probe output；Preferably, since analog voltage signal is with telecommunications
Number form transmission, therefore analog voltage signal can directly be received by wire transmission mode.For range data, due to being
It is sent by over the horizon communication system, therefore first passes through infrared receiving device reception, then pass through UART (universal asynchronous receiving-transmitting transmission)
Interrupt the range data for receiving and sending from the infrared receiving device.
Preferably, the infrared receiving device is infrared receiving tube.Data transmission is realized by using infrared receiving device
Automatically, noiseless, fireballing advantage.
The range that multimeter, pincerlike meter are adjusted according to the range data, when range is located at correct gear, then by institute
It states analog voltage signal and carries out digital-to-analogue conversion to obtain accurate measurement data.Before obtaining measurement data, range is first adjusted
To prevent the read error when subsequent reads take analog voltage signal.
In preferred embodiment, when not accessing foreign current probe, multimeter or pincerlike meter show internal current measurement
Interface is automatically converted into foreign current probe circle after through the range data and analog voltage signal of reading probe output
Face, while corresponding range data are shown automatically, it no longer needs to pass through manual adjustment.
The embodiment of the present invention also provides a kind of probe signal automatic identification equipment, as shown in Figure 1, comprising:
First receiving unit 10 and the second receiving unit 11, first receiving unit 10 are used to obtain probe output
Range data, second receiving unit 11 are used to obtain the analog voltage signal of the probe output；Preferably, due to simulation
Voltage signal is transmitted in a manner of wire transmission, therefore it is cable reception device that second receiving unit is corresponding.For amount
Number of passes evidence is to be sent by infrared sending device, therefore first receiving unit is infrared receiving device.Preferably, described
Infrared receiving device is infrared receiving tube.Automatic, noiseless, fireballing advantage is realized by infrared receiving device, is kept away simultaneously
Exempt from wire transmission mode and causes radio frequency interference probe in complexity and other wireless transmission methods in arrangement of conductors structure
Simulate voltage signal output, cause to export it is unstable, to influence the reading of the equipment.
First processing units 12, for from the 10 amount to obtain number of passes evidence of the first receiving unit and according to the range data
Adjust the range of the equipment；According to the range data received, the range of the equipment is adjusted to correct gear, to prevent
There is mistake in reading data.
AD conversion unit 13, for the analog voltage signal to be carried out analog-to-digital conversion to obtain measurement data.Specifically
, when range exports correct gear, the analog voltage signal is carried out analog-to-digital conversion again to obtain by AD conversion unit 13
Obtain accurate measurement data.
Preferably, further including verification unit, for verifying the range by the analog voltage signal received
The accuracy of data, when verifying correct, the first processing units adjust the range of the equipment to correct gear, work as verification
When mistake, warning is issued.
In preferred embodiment, the equipment further includes display unit 14, described aobvious when not accessing foreign current probe
Show that unit shows internal current measurement interface, after through the range data and analog voltage signal of reading probe output, shows
Show that unit 14 is automatically converted into foreign current probe interface, while showing corresponding range data automatically, no longer needs to by artificial
It adjusts.
Probe signal automatic identification equipment described in the embodiment of the present invention, preferably, the first processing units 12 are also wrapped
Include: the first universal asynchronous receiving-transmitting transmission unit, the first universal asynchronous receiving-transmitting transmission unit, which interrupts, receives first reception
The range data that unit 10 obtains.It is interrupted by the first universal asynchronous receiving-transmitting transmission unit (UART) and receives the infrared receiver dress
The range data of the serial ports of offer are provided, realize that range data are fast and accurately transmitted.
The specific embodiment of the invention also provides a kind of probe, as shown in Figure 2, comprising:
Third receiving unit 20, for reading the gear level of probe；
4th receiving unit 21, for obtaining the range data of the probe corresponding with the gear level；
The second processing unit 22 exports corresponding analog voltage letter for controlling the probe according to the range data
Number；
First transmission unit 23, for the range data to be sent to reading equipment；
Second transmission unit 24, for the analog voltage signal to be sent to reading equipment.
Specifically, being sent to the 4th receiving unit 21 after third receiving unit 20 reads the gear level of probe to obtain
Take the range data of the probe corresponding with the gear level.It is then forwarded to the second processing unit 22, by described second
It manages unit 22 and controls the corresponding analog voltage signal of the probe output according to the range data.By the analog voltage signal
The second transmission unit 24 is sent to be sent to reading equipment, and range data are sent to the first transmission unit 23 to be supplied to
Read equipment.
Preferably, the probe further includes driving switch, different voltage signals is exported for adjusting the probe.It is described
Driving switch tool is respectively 30A, 300A, 3000A there are three gear.Different gears corresponds to different gear level, the shelves
Bit level is made of triad code K1, K2, K3.User fluctuates driving switch to 30A, any gear of 300A, 3000A manually
On, the corresponding gear level of the range data stirred with it is just formd inside probe.Therefore pass through third receiving unit
Read gear level.
In embodiments of the present invention, as shown in Table 1, as the gear level K1 of the probe read, when K2, K3 are 011,
Gear corresponding to it is 30A；As the gear level K1 of the probe read, when K2, K3 are 101, corresponding to gear be
300A；The gear level K1 of the probe read, when K2, K3 are 110, corresponding to gear be 3000A.By the gear of probe
One-to-one relationship is formed between level and driving switch, and spy can be known by obtaining the gear level of probe with this
Which driving switch head is currently on.Obtain the range data of the probe corresponding with the gear level again, it is specific and
Saying also has one-to-one relationship between the range data and gear level.The preferable range data include at least:
Data header, range data and verification and, with specific reference to shown in table two.When gear is allocated to 30A, gear level is 011, amount
Number of passes evidence is aa0x300xda.
In preferred embodiments of the present invention, the probe further include: signal amplification circuit, for according to the range number
According to the amplification factor of the control measurement data to export the corresponding analog voltage signal.According to the difference of gear level,
The signal amplification circuit can also export 100mV/A, 10mV/A and 1mV/A tri- voltage signals conducts of differing in size respectively and put
The current value that big multiple obtains measurement amplifies, with analog voltage signal needed for final output.
In preferred embodiments of the present invention, first transmission unit is infrared sending device.Specifically, by range number
It is transferred to reading equipment according to by infrared sending device, with save the cost, and wire transmission mode is avoided to cause arrangement of conductors
What radio frequency interference was popped one's head in the complexity and other wireless transmission methods in structure simulates voltage signal output, causes defeated
It is unstable out, to influence the normal reading of reading equipment.The preferable reading equipment can be multimeter or pincerlike meter.
Preferably, the infrared sending device is infrared transmission.It is realized by infrared sending device automatic, noiseless, fast
Spend fast advantage.
Preferably, the probe further includes probe induction coil, sent out for obtaining measurement data, then by the measurement data
Signal amplification circuit is given, subsequent processing is carried out by the signal amplification circuit.
Preferably, described the second processing unit further includes the second universal asynchronous receiving-transmitting transmission unit, phase is sent for interrupting
The range data answered are to the first transmission unit.
The embodiment of the present invention also provides a kind of probe signal automatic recognition system, as shown in figure 3, including any one reality as above
Apply probe signal automatic identification equipment 30 described in example and probe 31.Wherein, there is infrared sending device, institute on the probe
Probe signal automatic identification equipment is stated with infrared receiving device, realizes the infrared receiving/transmission of data.
To sum up, probe signal automatic identifying method, equipment, system and probe disclosed in the above embodiment of the present invention, so that
Multimeter or pincerlike meter no longer need to be arranged function gear and range gear, the range number of direct automatic identification foreign current probe
According to guarantee correct measurement data.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all that there is skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (10)
1. a kind of probe signal automatic identifying method characterized by comprising
Read the gear level of probe；
Obtain the range data of the probe corresponding with the gear level；
The corresponding analog voltage signal of probe output is controlled according to the range data, and by the range data and mould
Quasi- voltage signal is sent to reading equipment.
2. a kind of probe signal automatic identifying method according to claim 1, which is characterized in that the method is further wrapped
Include: by probe induction coil obtain measurement data, according to the range data control the amplification factor of the measurement data with
Export the corresponding analog voltage signal.
3. a kind of automatic identifying method of probe signal characterized by comprising
Obtain the range data and analog voltage signal of probe output；
Range is adjusted according to the range data, then the analog voltage signal is subjected to digital-to-analogue conversion to obtain measurement data.
4. a kind of probe signal automatic identifying method according to claim 3, which is characterized in that the method also includes:
The range data of the probe output are received by infrared receiving device.
5. a kind of probe signal automatic identification equipment characterized by comprising
First receiving unit and the second receiving unit, first receiving unit are used to obtain the range data of probe output,
Second receiving unit is used to obtain the analog voltage signal of the probe output；
First processing units, for from the first receiving unit amount to obtain number of passes evidence and according to range data adjusting
The range of equipment；
AD conversion unit, for the analog voltage signal to be carried out digital-to-analogue conversion to obtain measurement data.
6. probe signal automatic identification equipment according to claim 5, which is characterized in that first receiving unit is red
Outer reception pipe.
7. probe signal automatic identification equipment according to claim 5, which is characterized in that the first processing units are also wrapped
Include: the first universal asynchronous receiving-transmitting transmission unit, the first universal asynchronous receiving-transmitting transmission unit, which interrupts, receives first reception
The range data that unit obtains.
8. a kind of probe characterized by comprising
Third receiving unit, for reading the gear level of probe；
4th receiving unit, for obtaining the range data of the probe corresponding with the gear level；
The second processing unit exports corresponding analog voltage signal for controlling the probe according to the range data；
First transmission unit, for the range data to be sent to reading equipment；
Second transmission unit, for the analog voltage signal to be sent to reading equipment.
9. probe according to claim 8 characterized by comprising signal amplification circuit, for according to the range number
According to the amplification factor of the control measurement data to export the corresponding analog voltage signal.
10. a kind of probe signal automatic recognition system, which is characterized in that the probe letter including such as claim 5-7 any one
Number automatic identification equipment and probe such as claim 8-9 any one.
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| CN201910206365.2A CN109782039B (en) | 2019-03-19 | 2019-03-19 | Current measurement method, current measurement device and current signal measurement system |
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| CN201910206365.2A CN109782039B (en) | 2019-03-19 | 2019-03-19 | Current measurement method, current measurement device and current signal measurement system |
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Cited By (1)
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| CN110456125A (en) * | 2019-08-23 | 2019-11-15 | 深圳成智达科技有限公司 | A kind of intelligent digital measuring system |
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| CN109782039B (en) | 2024-09-06 |
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