CN104730483A - Wireless pulse synchronous sampling method - Google Patents
Wireless pulse synchronous sampling method Download PDFInfo
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- CN104730483A CN104730483A CN201510110101.9A CN201510110101A CN104730483A CN 104730483 A CN104730483 A CN 104730483A CN 201510110101 A CN201510110101 A CN 201510110101A CN 104730483 A CN104730483 A CN 104730483A
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Abstract
The invention provides a wireless pulse synchronous sampling method. The wireless pulse synchronous sampling method comprises the following steps that 1, a mainframe and a wireless sampler are configured; 2, the wireless sampler transmits pulse signals and pulse counting data packages to the mainframe, pulse counting data package counters are arranged in the pulse counting data packages, one pulse counting data package counter is added every time one pulse counting data package is sent, and the mainframe is internally and additionally provided with a pulse signal counter and an old counter used for storing the received pulse counting data package counters; 3, when the mainframe receives one pulse signal, one pulse signal counter of the mainframe is added, when the mainframe receives one pulse countering data package, pulse counting is finished, the old counter stores the pulse counting data package counter received this time, and the mainframe takes out the pulse counting data package to be processed. The method can avoid influence of data loss on error measurement.
Description
Technical field
The inventive method belongs to high for directional error field tests, specifically, relate to a kind of wireless pulses synchronous sampling method.
Background technology
Supply in low meter measuring apparatus error testing process to massive quantity power supply and measurement and height at the scene, because measurement meter distance CT mutual inductor, PT mutual inductor are distant, often cannot carry out the test of measuring apparatus composition error, its technology short slab is that measurement meter impulse sampling is poor to the real-time of PT, CT mutual inductor.Having in prior art and adopt wireless telecommunications to realize synchronized sampling, namely carrying out error testing by being sent to main frame after wireless samplers sample pulse signal, although this to some extent solves problem, still existing defects.Because wireless telecommunications are very easily by the interference of peripheral environment, data packetloss phenomenon will inevitably be there is, user needs to bear the gross error that data packetloss causes, and, due to cannot additional data be increased in pulse data signal bag, therefore also its pulse-counting data bag with follow-up arrival cannot be associated, so when packet loss phenomenon occurs, can cause data corruption.
How to address this problem, all there is no good solution in the industry all the time.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide one to be easy to realize, and the wireless pulses synchronous sampling method that whether there is pulse data and lose can be detected.
To achieve these goals, the technical solution adopted in the present invention is: a kind of wireless pulses synchronous sampling method, and the method comprises the following steps:
Step 1: configure host and wireless sampling thief, wherein, installs a main wireless synchronization module in described main frame, installs one from wireless synchronization module in described wireless sampling thief; Described wireless sampling thief was carried out counting formed pulse-counting data bag by external terminal interrupt trap pulse signal within sample time to wireless sampling thief described host setting sample time;
Step 2: described wireless sampling thief sends pulse signal and pulse-counting data bag to described main frame, arranges pulse-counting data package counting facility in described pulse-counting data bag, often send a pulse-counting data bag, described pulse-counting data package counting facility adds 1; Described main frame inside increases pulse count signal device and the old counter for preserving the pulse-counting data package counting facility received;
Step 3: after described main frame receives a pulse signal, the pulse count signal device of self is added 1, after described main frame receives a pulse-counting data bag, step-by-step counting terminates, this pulse-counting data package counting facility received preserved by described old counter, described main frame takes out described pulse-counting data bag, processes as follows:
3.1 when the pulse-counting data package counting facility of the last time of preserving in old counter add 1 equal this pulse-counting data package counting facility time, then impulse meter packet is not lost;
3.2 when the value of pulse count signal device equals the pulse-counting data bag count value received, then pulse signal is not lost;
3.3 when the condition of 3.1 and 3.2 meets simultaneously, then adjacent two pulse signals are not lost, and pulse-counting data bag is not lost, and the pulse signal that described main frame carries out according to receiving carries out error testing;
3.4 when pulsing dropout, and described main frame does not carry out error testing, forces this pulse-counting data package counting facility to be set to 0 simultaneously, re-starts impulse sampling until the condition of 3.1 and 3.2 meets simultaneously;
3.5 when pulsing enumeration data packet loss, and described main frame does not carry out error testing, directly abandons pulse-counting data bag and waits for that the condition of 3.1 and 3.2 meets simultaneously.
Hinge structure of the present invention has outstanding substantive distinguishing features and marked improvement, specifically, in the inventive method, pulse-counting data package counting facility is set in pulse-counting data bag, pulse count signal device and the old counter for preserving the pulse-counting data package counting facility received is increased in main frame inside, after impulse sampling terminates, can be informed in by the consistance of each counter of comparison respectively the loss whether occurring pulse signal or pulse-counting data bag in data transfer procedure, thus avoid pulse data to lose impact on error measure.
Accompanying drawing explanation
Fig. 1 is the wireless pulses synchronized sampling sequential chart of the inventive method.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
A kind of wireless pulses synchronous sampling method, the method comprises the following steps:
Step 1: configure host and wireless sampling thief, wherein, installs a main wireless synchronization module in described main frame, installs one from wireless synchronization module in described wireless sampling thief; Described wireless sampling thief was carried out counting formed pulse-counting data bag by external terminal interrupt trap pulse signal within sample time to wireless sampling thief described host setting sample time;
Step 2: described wireless sampling thief sends pulse signal and pulse-counting data bag to described main frame, arranges pulse-counting data package counting facility in described pulse-counting data bag, often send a pulse-counting data bag, described pulse-counting data package counting facility adds 1; Described main frame inside increases pulse count signal device and the old counter for preserving the pulse-counting data package counting facility received;
Step 3: after described main frame receives a pulse signal, the pulse count signal device of self is added 1, after described main frame receives a pulse-counting data bag, step-by-step counting terminates, this pulse-counting data package counting facility received preserved by described old counter, described main frame takes out described pulse-counting data bag, processes as follows:
3.1 when the pulse-counting data package counting facility of the last time of preserving in old counter add 1 equal this pulse-counting data package counting facility time, then impulse meter packet is not lost;
3.2 when the value of pulse count signal device equals the pulse-counting data bag count value received, then pulse signal is not lost;
3.3 when the condition of 3.1 and 3.2 meets simultaneously, then adjacent two pulse signals are not lost, and pulse-counting data bag is not lost, and the pulse signal that described main frame carries out according to receiving carries out error testing;
3.4 when pulsing dropout, and described main frame does not carry out error testing, forces this pulse-counting data package counting facility to be set to 0 simultaneously, re-starts impulse sampling until the condition of 3.1 and 3.2 meets simultaneously;
3.5 when pulsing enumeration data packet loss, and described main frame does not carry out error testing, directly abandons pulse-counting data bag and waits for that the condition of 3.1 and 3.2 meets simultaneously.
Fig. 1 is the wireless pulses synchronized sampling sequential chart of the inventive method, as shown in FIG.,
S1, S2, S3 ..Sn: the pulse signal of wireless sampling thief;
D1, D2, D3 ... Dn: the impulse meter packet of wireless sampling thief;
T1, T2, T3 ... Tn: the pulse interval of wireless sampling thief;
S1 ', S2 ', S3 ' ... Sn ': the pulse signal that main frame receives;
D1 ', D2 ', D3 ' ... Dn ': the impulse meter packet that main frame receives;
T1 ', T2 ', T3 ' ... Tn ': the pulse interval that main frame receives.
Work as S1 ', S2 ', S3 ' ... after certain dropout in Sn ', main frame can re-start and count the not error of calculation, prevents the appearance of gross error.
Work as D1 ', D2 ', D3 ' ... after certain dropout in Dn ', main frame abandons current data packet, waits for that the packet of next complete match occurs, then carries out error calculation.
In reality test, T1, T2, T3 ... Tn and T1 ', T2 ', T3 ' ... the synchronousness of Tn ' calculates negligible on the impact of error.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (1)
1. a wireless pulses synchronous sampling method, is characterized in that: the method comprises the following steps:
Step 1: configure host and wireless sampling thief, wherein, installs a main wireless synchronization module in described main frame, installs one from wireless synchronization module in described wireless sampling thief; Described wireless sampling thief was carried out counting formed pulse-counting data bag by external terminal interrupt trap pulse signal within sample time to wireless sampling thief described host setting sample time;
Step 2: described wireless sampling thief sends pulse signal and pulse-counting data bag to described main frame, arranges pulse-counting data package counting facility in described pulse-counting data bag, often send a pulse-counting data bag, described pulse-counting data package counting facility adds 1; Described main frame inside increases pulse count signal device and the old counter for preserving the pulse-counting data package counting facility received;
Step 3: after described main frame receives a pulse signal, the pulse count signal device of self is added 1, after described main frame receives a pulse-counting data bag, step-by-step counting terminates, this pulse-counting data package counting facility received preserved by described old counter, described main frame takes out described pulse-counting data bag, processes as follows:
3.1 when the pulse-counting data package counting facility of the last time of preserving in old counter add 1 equal this pulse-counting data package counting facility time, then impulse meter packet is not lost;
3.2 when the value of pulse count signal device equals the pulse-counting data bag count value received, then pulse signal is not lost;
3.3 when the condition of 3.1 and 3.2 meets simultaneously, then adjacent two pulse signals are not lost, and pulse-counting data bag is not lost, and the pulse signal that described main frame carries out according to receiving carries out error testing;
3.4 when pulsing dropout, and described main frame does not carry out error testing, forces this pulse-counting data package counting facility to be set to 0 simultaneously, re-starts impulse sampling until the condition of 3.1 and 3.2 meets simultaneously;
3.5 when pulsing enumeration data packet loss, and described main frame does not carry out error testing, directly abandons pulse-counting data bag and waits for that the condition of 3.1 and 3.2 meets simultaneously.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968640A (en) * | 2017-11-16 | 2018-04-27 | 湖南工业大学 | Sample accumulation formula disturbing pulse filter method |
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