CN112702082A - Channel frequency hopping method of large-scale verification system of wireless pulse mode metering equipment - Google Patents
Channel frequency hopping method of large-scale verification system of wireless pulse mode metering equipment Download PDFInfo
- Publication number
- CN112702082A CN112702082A CN202011567026.6A CN202011567026A CN112702082A CN 112702082 A CN112702082 A CN 112702082A CN 202011567026 A CN202011567026 A CN 202011567026A CN 112702082 A CN112702082 A CN 112702082A
- Authority
- CN
- China
- Prior art keywords
- frequency
- verification
- max
- stations
- wireless
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a channel frequency hopping method of a wireless pulse mode metering equipment large-scale verification system, and relates to the field of verification and detection of metering equipment. When the wireless pulse channel carries out non-contact mode detection of large-scale metering equipment, due to the fact that the number of available channels is limited, a large amount of mutual interference between detection stations and interference of environmental noise exist simultaneously. After detecting the background noise intensity of the wireless signal near the central frequency, the invention compares the detected background noise intensity with a background noise threshold value and screens to obtain a full-ordered set F of available frequency bandsp(ii) a Distributing available frequency band full-sequence set F according to the measured frequency band distribution parameters of the verification station distribution in a two-stage mapping modepForming a group frequency distribution table by the frequency points in the frequency domain; and copying the group frequency distribution table to other groups to obtain a device frequency distribution table, and transmitting and receiving wireless pulse verification pulse signals on corresponding frequency points on each verification station. Reduces the consumption of available frequency bands and avoids the occurrence of the same frequency bandsFrequency interference or adjacent inter-frequency interference.
Description
Technical Field
The invention relates to the field of verification and detection of metering equipment, in particular to a channel frequency hopping method of a large-scale verification system of metering equipment in a wireless pulse mode.
Background
The metrological verification of the metering equipment is important work for keeping the national metering unit system uniform and accurate and reliable in magnitude, with the progress of wireless communication technology, an auxiliary terminal for verifying pulse output is gradually cancelled in the design specification of the intelligent metering equipment, and the increase of wireless verification pulse output becomes a new trend. In the case where the auxiliary terminal is eliminated, a path for detecting an error using a conventional electric pulse is cut off. Therefore, in order to ensure the smooth verification of the intelligent metering equipment, it is urgently needed to perform the non-contact verification of the metering equipment by using a wireless pulse channel.
Currently, the modes for communication in the wireless burst mode mainly include a link layer mode and a physical layer mode. The link layer mode can improve the anti-interference capability of signals by various means such as time-sharing communication, but has high conversion delay and poor stability; the physical layer mode directly converts the pulse signal into a wireless signal, which has high stability but has the problem of wireless channel interference. The verification mode for the wireless pulse verification in a non-contact mode is designed on the basis of a physical layer mode, and in order to ensure the verification accuracy, the original anti-interference design in a wireless link layer protocol is removed, so that the maximum challenge of the non-contact verification of the metering equipment by using a wireless pulse channel is that the anti-interference capability is insufficient, and particularly when the wireless pulse mode verification of the metering equipment is carried out on a large scale, a large amount of mutual interference among verification stations and the interference of environmental noise exist at the same time, so that the problem is more prominent.
The most direct and effective method for solving the interference is to stagger the frequencies between the channels (i.e. frequency hopping technology), but for a general wireless communication chip, the number of available channels is limited (for example, the common frequency band of bluetooth wireless pulses is 2400MHz-2483.5MHz, and there are 84 total channels), and although some wireless communication chips will perform a certain expansion on both sides of the common frequency band, it is still difficult to allocate a unique frequency point for each certification workstation for a large-scale certification system. Therefore, in the large-scale verification of the wireless pulse mode of the metering equipment, a proper channel frequency hopping method needs to be established to reduce the consumption of available frequency bands, so the invention designs the channel frequency hopping method for the large-scale verification of the wireless pulse mode of the metering equipment.
Disclosure of Invention
The technical problem to be solved and the technical task provided by the invention are to perfect and improve the prior technical scheme, and provide a channel frequency hopping method of a wireless pulse mode metering equipment large-scale verification system, so as to reduce the consumption of available frequency bands and ensure the accuracy and the anti-interference capability of the wireless pulse mode large-scale verification of the metering equipment. Therefore, the invention adopts the following technical scheme.
The channel frequency hopping method of the wireless pulse mode metering equipment large-scale verification system comprises the following steps:
1) a wireless channel measurement and control device of the verification system detects the background noise intensity of a wireless signal near the central frequency through a frequency spectrograph;
2) comparing the background noise intensity of the wireless signal with a background noise threshold value, and screening to obtain a full-ordered set F of available frequency bandsp；
3) The verification station of the verification system is regarded as twoDimension distribution, calibrating the ith verification station of the abscissa and the jth verification station of the ordinate according to coordinates (i, j), dividing all verification stations of the verification system into a plurality of groups, generating no interference between two same-frequency stations at corresponding positions between the two groups, grouping epitopes of the verification system, distributing an available frequency band full-sequence set F according to a secondary mapping mode according to frequency band distribution parameters of the distribution of the verification stationspForming a group frequency distribution table by the frequency points in the frequency domain;
4) copying the group frequency distribution table to other groups in the verification system to obtain a device frequency distribution table corresponding to all verification stations of the verification system;
5) the wireless channel measurement and control device of the verification system outputs corresponding frequency calculation results of all verification stations to a verification station control device in the verification system;
6) after receiving the corresponding frequency points of each verification station, the verification station control device receives wireless verification pulse signals at the frequency points when verifying or calibrating the metering equipment on each verification station in a wireless pulse mode.
The coordinates of a specific verification station on a large-scale verification system are mapped to the frequency corresponding to the verification station, and the channel frequency of each verification station is automatically selected in the large-scale verification of the wireless pulse mode of the metering equipment, so that the consumption of available frequency bands is reduced, the same frequency interference or the interference between adjacent frequencies is avoided, and the accuracy and the anti-interference capability of the large-scale verification of the wireless pulse mode of the metering equipment are ensured by using the frequency bands as few as possible.
As a preferable technical means: in step 2), the available frequency band full-ordered set FpWhen screening, the noise floor power K of each frequency point f in the frequency band is listed by taking 1MHz as a unitbfIf K isbf<KmaxThe frequency is selected into the available frequency band, KmaxThe available frequency band full-sequence set F is finally obtained for the power threshold of the background noisep＝{fp1…fpi…fpNFrequency points in the available frequency band full-ordered set are arranged in ascending order from small to large. Implementing a full ordered set F of available frequency bandspScreening.
As a preferable technical means: in step 3), measureAnd (3) testing the frequency band distribution parameters of the system to obtain the following frequency band distribution parameters depending on the distribution of the verification stations: minimum frequency difference Δ f between adjacent epitopes in the abscissa directioniThe adjacent verification stations on the abscissa are required to synchronously perform verification at the interval of the frequency difference, and no interference occurs between signals; minimum frequency difference Δ f between adjacent epitopes in the ordinate directionjThe adjacent verification stations on the ordinate are required to synchronously perform verification when the frequency difference is separated, and no interference occurs between signals; the minimum table potential difference delta i of adjacent frequencies in the abscissa direction requires that verification stations with interval delta i-1 table potential differences on the abscissa perform verification synchronously when the frequency difference is 1MHz, and no interference occurs between signals; the minimum meter potential difference delta j of adjacent frequencies in the direction of the ordinate requires that verification stations with interval delta j-1 meter potential differences on the ordinate synchronously perform verification when the frequency difference is 1MHz, and no interference occurs between signals; same-frequency minimum table difference delta i in abscissa directioneqRequiring an interval Δ i on the abscissaeqThe verification stations with the meter difference of 1 synchronously perform verification when the frequencies are equal, and no interference occurs between signals; same-frequency minimum table difference delta j in ordinate directioneqRequiring an interval Δ j on the ordinateeqAnd (4) synchronously verifying the verification stations with the meter difference of 1 at equal frequency without interference among signals. The frequency band distribution parameters are effectively measured.
As a preferable technical means: in the step 3), because the two same-frequency stations at the corresponding positions between the two groups must be ensured not to generate interference, the size of each group is temporarily set as delta iMAX＝MAX(ΔiΔfi,Δieq)，ΔjMAX＝MAX(ΔjΔfj,Δjeq)，iMAX/jMAXFor each set of abscissa/ordinate maxima, respectively, in the secondary mapping, the first level maps the certification workstation with coordinates (i, j) to the intermediate serial number m (i, j), as follows:
m(i,j)＝Δfkmod(i,Δik)+ΔfkΔikmod(j,Δjk)+mi(fix(i/Δik))+Δikmj(fix(j/Δjk))
in the formula mi(i)/mj(j) Respectively in abscissa/ordinate orderScatter mapping of numbers; Δ ik＝Δi/Δki，ΔkiThe dispersion factor is based on the serial number dispersion mapping of the abscissa; Δ jk＝Δj/Δkj，ΔkjThe dispersion factor is based on the ordinate serial number dispersion mapping; each set of dimensions is corrected to Δ iMAX＝MAX(ΔikΔfi,Δieq)，ΔjMAX＝MAX(ΔjkΔfj,Δjeq)；Δfk＝MAX(Δfi,Δfj, fix(iMAXjMAX)/(ΔikΔjk) ); mod (·) is a remainder function; fix (. cndot.) is a rounding function;
second-level mapping intermediate sequence number m to available frequency band full-ordered set FpAnd obtaining a group frequency distribution table at the mth frequency point in the table. Effectively realizing frequency point mapping to obtain a group frequency allocation table, wherein the allocation method uses the frequency point delta fkΔikΔjkAnd moreover, the consumption of available frequency bands is reduced.
As a preferable technical means: firstly according to a dispersion factor delta ki、ΔkjAll find Δ i to 1k、Δ jk(ii) a If at this time iMAX/ΔikAnd jMAX/ΔjkGreater in between, assume iMAX/ΔikSatisfies the following formula:
iMAX/Δik≥Δk+1-1/Δk
where Δ k is the largest integer satisfying the inequality, if Δ k<2, then the dispersion factor Δ ki＝Δk j1, and the dispersion mapping is an identity mapping; if Δ k is greater than or equal to 2, the dispersion factor Δ kiΔ k, and the dispersion map can be written as:
has the advantages that: the coordinates of the verification stations on the large-scale verification system are mapped to the corresponding frequency of the verification stations, the channel frequency of each verification station is automatically selected in the large-scale verification of the metering equipment wireless pulse mode, the generation of same frequency interference or interference between adjacent frequencies is avoided, the limited available frequency bands can be distributed to the verification stations as many as possible by adopting a secondary mapping and dispersion mapping method, the frequency bands occupy less, the use in the environment with high radio base noise is facilitated, the accuracy and the anti-interference capability of the large-scale verification of the metering equipment wireless pulse mode are ensured by the frequency bands as few as possible, and the consumption of the available frequency bands is reduced; the frequency band allocation formula has no hyper-parameters needing manual setting, so that the frequency band allocation formula can be implemented without manual setting experience, and after the frequency allocation of each verification station of a verification device is completed, as long as the layout of the verification stations and the available frequency band of the verification device are not changed, the subsequent verification can continue to use the same device frequency allocation table, so that the frequency band allocation formula has the advantages of high cost advantage and simple calculation, can be applied to an automatic large-scale verification assembly line of metering equipment adopting a wireless pulse mode, meets the automatic verification requirement of a large quantity of new-generation metering equipment in the wireless pulse mode, and is convenient to popularize.
Drawings
FIG. 1 is a schematic flow diagram of the present invention.
FIG. 2 is a schematic diagram of the core algorithm of the present invention.
Fig. 3 is a schematic diagram of an assay system connection according to an embodiment of the present invention.
In the figure: 1-wireless channel measurement and control device; 2-a frequency spectrograph; 3-parameter storage means; 4-a human-machine interface device; 5-verifying the station control device; 6-an antenna; 101-a wireless signal acquisition module; 102-a parameter receiving module; 103-a central processing unit; 104-channel frequency allocation module.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the drawings in the specification.
As shown in fig. 1 to 3, the channel frequency hopping method of the large-scale verification system for the wireless pulse mode metrological device includes the following steps:
s1) detecting the wireless channel measurement and control device 1 of the verification system by the frequency spectrograph 2;
s2) comparing the background noise intensity of the wireless signal with a background noise threshold value, and screeningObtain the full ordered set F of the available frequency bandsp；
S3) regarding the verification stations of the verification system as two-dimensional distribution, calibrating the ith verification station of the abscissa and the jth verification station of the ordinate according to coordinates (i, j), dividing all the verification stations of the verification system into a plurality of groups, not generating interference between two same-frequency stations at corresponding positions between the two groups, after grouping the epitopes of the verification system, distributing an available frequency band full-sequence set F according to the frequency band distribution parameters of the distribution of the verification stations in a two-level mapping modepForming a group frequency distribution table by the frequency points in the frequency domain;
s4) copying the group frequency distribution table to other groups in the verification system to obtain a device frequency distribution table corresponding to all verification stations of the verification system;
s5) the wireless channel measurement and control device 1 of the verification system outputs the corresponding frequency calculation results of each verification station to the verification station control device 5 in the verification system;
s6), after receiving the corresponding frequency point of each certification workstation, the certification workstation control device 5 transmits and receives a wireless pulse certification pulse signal at the frequency point when calibrating or calibrating the metering equipment on each certification workstation in a wireless pulse manner.
To achieve a full ordered set F of available frequency bandspIn step S2), the available frequency band full-ordered set FpWhen screening, the noise floor power K of each frequency point f in the frequency band is listed by taking 1MHz as a unitbfIf K isbf<KmaxThe frequency is selected into the available frequency band, KmaxThe available frequency band full-sequence set F is finally obtained for the power threshold of the background noisep＝{fp1 … fpi … fpNFrequency points in the available frequency band full-ordered set are arranged in ascending order from small to large. Implementing a full ordered set F of available frequency bandspScreening.
In order to realize the determination of the frequency band distribution parameters, in step S3), the frequency band distribution parameters of the certification system are tested, and the following frequency band distribution parameters depending on the distribution of the certification workstations are obtained: minimum frequency difference Δ f between adjacent epitopes in the abscissa directioniThe adjacent verification stations on the abscissa are required to synchronously perform verification when the frequency difference is separated,no interference occurs between signals; minimum frequency difference Δ f between adjacent epitopes in the ordinate directionjThe adjacent verification stations on the ordinate are required to synchronously perform verification when the frequency difference is separated, and no interference occurs between signals; the minimum table potential difference delta i of adjacent frequencies in the abscissa direction requires that verification stations with interval delta i-1 table potential differences on the abscissa perform verification synchronously when the frequency difference is 1MHz, and no interference occurs between signals; the minimum meter potential difference delta j of adjacent frequencies in the direction of the ordinate requires that verification stations with interval delta j-1 meter potential differences on the ordinate synchronously perform verification when the frequency difference is 1MHz, and no interference occurs between signals; same-frequency minimum table difference delta i in abscissa directioneqRequiring an interval Δ i on the abscissaeqThe verification stations with the meter difference of 1 synchronously perform verification when the frequencies are equal, and no interference occurs between signals; same-frequency minimum table difference delta j in ordinate directioneqRequiring an interval Δ j on the ordinateeqAnd (4) synchronously verifying the verification stations with the meter difference of 1 at equal frequency without interference among signals. The frequency band distribution parameters are effectively measured.
In order to realize mapping allocation of the intra-group frequencies, in step S3), each group is temporarily set to Δ i because it is necessary to ensure that no interference occurs between two co-frequency workstations in corresponding positions between the two groupsMAX＝MAX(ΔiΔfi,Δieq)，ΔjMAX＝MAX(ΔjΔfj,Δjeq)，iMAX/jMAXFor each set of abscissa/ordinate maxima, respectively, in the secondary mapping, the first level maps the certification workstation with coordinates (i, j) to the intermediate serial number m (i, j), as follows:
m(i,j)＝Δfkmod(i,Δik)+ΔfkΔikmod(j,Δjk)+mi(fix(i/Δik))+Δikmj(fix(j/Δjk))
in the formula mi(i)/mj(j) Respectively, the scatter mapping of the horizontal/vertical coordinate serial numbers; Δ ik＝Δi/Δki，ΔkiThe dispersion factor is based on the serial number dispersion mapping of the abscissa; Δ jk＝Δj/Δkj，ΔkjFor distributing the mapping points based on ordinate numbersA loose factor; each set of dimensions is corrected to Δ iMAX＝MAX(ΔikΔfi,Δieq)，ΔjMAX＝MAX(ΔjkΔfj,Δjeq)；Δfk＝MAX(Δfi,Δfj, fix(iMAXjMAX)/(ΔikΔjk) ); mod (·) is a remainder function; fix (. cndot.) is a rounding function;
second-level mapping intermediate sequence number m to available frequency band full-ordered set FpAnd obtaining a group frequency distribution table at the mth frequency point in the table. Effectively realizing frequency point mapping to obtain a group frequency allocation table, wherein the allocation method uses the frequency point delta fkΔikΔjkAnd moreover, the consumption of available frequency bands is reduced.
When the mapping is dispersed, firstly according to the dispersion factor delta ki/ΔkjAll find Δ i to 1k/Δjk(ii) a If at this time iMAX/ΔikAnd jMAX/ΔjkGreater in between, assume Δ ikSatisfies the following formula:
iMAX/Δik≥Δk+1-1/Δk
where Δ k is the largest integer satisfying the inequality, if Δ k<2, then the dispersion factor Δ ki＝Δk j1, and the dispersion mapping is an identity mapping; if Δ k is greater than or equal to 2, the dispersion factor Δ kiΔ k, and the dispersion map can be written as:
the following is a further description by way of specific examples.
As shown in fig. 3, the system for large-scale verification of automatic metering equipment, which adopts a wireless bluetooth communication mode near 2.4GHz and comprises 4 90 epitope verification bins, further comprises a wireless channel measurement and control device 1, a human-computer interface device 4 and a parameter storage device 3, the wireless channel measurement and control device 1 comprises a wireless signal acquisition module 101, a parameter receiving module 102, a central processing unit 103 and a channel frequency distribution module 104, the wireless signal acquisition module 101 is connected with an antenna 6 through the frequency spectrograph 2, a human-computer interface device 4 is connected with a parameter storage device 3, the human-computer interface device 4 and the parameter storage device 3 are connected to the wireless signal acquisition module 101, the parameter receiving module 102 and the wireless signal acquisition module 101 are connected to the central processing unit 103, and the central processing unit 103 is connected with the verification station control device 5 through the channel frequency distribution module 104.
The method is implemented in a wireless channel measurement and control device 1, a wireless signal acquisition module 101 of the wireless channel measurement and control device 1 receives a background noise signal near a verification system through an antenna 6, the strength of the received signal is detected through a frequency spectrograph 2, the wireless channel measurement and control device 1 receives the wireless background noise strength near 2.4 +/-0.2 GHz through the wireless signal acquisition module 101, and the wireless background noise strength is compared with a background noise threshold value to obtain a full-ordered set F of available frequency bandsp(ii) a When the calibration system is put into use for the first time, the frequency band distribution parameters of the calibration system are measured in a test mode and input to the human-computer interface device 4, and the parameters to be detected comprise: minimum frequency difference Δ f between adjacent epitopes in the abscissa directioniThe same frequency minimum table potential difference delta ieqAnd an adjacent frequency minimum table difference Δ i; minimum frequency difference Δ f between adjacent epitopes in the ordinate directionjThe same frequency minimum table potential difference delta jeqThe human-computer interface device 4 transmits the parameters to the parameter receiving module 102 of the wireless channel measurement and control device 1 and synchronizes the parameters to the parameter storage device 3; when the verification system is used subsequently, the parameter receiving module 102 of the wireless channel measurement and control device 1 can directly obtain the frequency band distribution parameters from the parameter storage device 3.
Then, the central processing unit 103 of the wireless channel measurement and control device 1 allocates available frequency bands. The first-level mapping calculates a dispersion factor k of the abscissa/ordinate according to the determination condition of the dispersion mappingi/kjAnd a scatter map mi(i)/mj(j) Substituting into the calculation formula of m (i, j) to obtain the intermediate serial number m. Second-level mapping intermediate sequence number m to available frequency band full-ordered set FpThe mth frequency point in the sequence (i, j) is obtained, and the frequency point f corresponding to the epitope with the sequence number (i, j) is obtainedpmForming a group frequency allocation table。
Specifically, if the frequency band distribution parameters of the verification system are as follows: minimum frequency difference Δ f between adjacent epitopes in the abscissa directioni4MHz, same frequency minimum table potential difference delta ieq15, the minimum table bit difference Δ i of adjacent frequencies is 6; minimum frequency difference Δ f between adjacent epitopes in the ordinate directionj4MHz, same frequency minimum table potential difference delta jeqWhen the minimum table bit difference Δ j between adjacent frequencies is 4 and 2, the formula i is first usedMAX/(Δik+1) is not less than delta k + 1-1/delta k, and the dispersion factor delta k in the abscissa direction can be verifiedi2; dispersion factor Δ k in the ordinate direction j1, thus Δ ik＝3，Δj k2, each group size iMAX＝15， jMAX＝4：Δfk6 MHz; the scatter mapping in the abscissa direction can be written as: ,
mi(i):{0 1 2 3 4}→{0 2 4 1 3}
obtain the dispersion maps m (i, j) and Δ ik、Δj kAfter the parameters are equal, the mapping from the coordinates (i, j) of the verification station to the middle serial number m can be calculated according to the following formula, and a group frequency distribution table is obtained.
m(i,j)＝Δfpmod(i,Δik)+ΔfpΔikmod(j,Δjk)+mi(fix(i/Δik))+Δikmj(fix(j/Δjk))
Finally, the central processing unit 103 of the wireless channel measurement and control device 1 copies the group frequency allocation table to other groups to obtain a device frequency allocation table, and then the channel frequency allocation module 104 outputs the corresponding frequency calculation results of each verification station to the verification station control device 5. After receiving the corresponding frequency points of each verification station, the verification station control device 5 receives and transmits wireless pulse verification pulse signals at the frequency points when verifying or calibrating the metering equipment on each verification station in a wireless pulse mode, so that interference between verification stations and bottom noise is avoided, consumption of available frequency bands is reduced, and balance of anti-interference performance improvement and frequency band resource saving in wireless pulse mode verification is realized.
The channel frequency hopping method of the large-scale verification system for the wireless pulse mode metering equipment shown in fig. 1-3 is a specific embodiment of the present invention, has the outstanding substantive features and significant progress of the present invention, and can make equivalent modifications in shape, structure and the like according to the practical use requirements and under the teaching of the present invention, which are within the protection scope of the present solution.
Claims (5)
1. The channel frequency hopping method of the wireless pulse mode metering equipment large-scale verification system is characterized by comprising the following steps of:
1) a wireless channel measurement and control device of the verification system detects the background noise intensity of a wireless signal near the central frequency through a frequency spectrograph;
2) comparing the background noise intensity of the wireless signal with a background noise threshold value, and screening to obtain a full-ordered set F of available frequency bandsp；
3) The method comprises the steps of regarding verification stations of a verification system as two-dimensional distribution, calibrating the ith verification station of an abscissa and the jth verification station of an ordinate according to coordinates (i, j), dividing all verification stations of the verification system into a plurality of groups, enabling two same-frequency stations at corresponding positions between the two groups not to generate interference, grouping epitopes of the verification system, and distributing an available frequency band full-sequence set F according to a two-level mapping mode according to frequency band distribution parameters of the distribution of the verification stations after distributing the epitopes of the verification systempForming a group frequency distribution table by the frequency points in the frequency domain;
4) copying the group frequency distribution table to other groups in the verification system to obtain a device frequency distribution table corresponding to all verification stations of the verification system;
5) the wireless channel measurement and control device of the verification system outputs corresponding frequency calculation results of all verification stations to a verification station control device in the verification system;
6) after receiving the corresponding frequency points of each verification station, the verification station control device receives wireless verification pulse signals at the frequency points when verifying or calibrating the metering equipment on each verification station in a wireless pulse mode.
2. The channel frequency hopping method of the large-scale verification system for the wireless pulse mode metrological equipment as claimed in claim 1, characterized in that: step (ii) of2) Middle, available frequency band full-ordered set FpWhen screening, the noise floor power K of each frequency point f in the frequency band is listed by taking 1MHz as a unitbfIf K isbf<KmaxThe frequency is selected into the available frequency band, KmaxThe available frequency band full-sequence set F is finally obtained for the power threshold of the background noisep＝{fp1…fpi…fpNFrequency points in the available frequency band full-ordered set are arranged in ascending order from small to large.
3. The channel frequency hopping method of the large-scale verification system for the wireless pulse mode metrological equipment as claimed in claim 1, characterized in that: in step 3), testing the frequency band distribution parameters of the verification system to obtain the following frequency band distribution parameters depending on the distribution of verification stations: minimum frequency difference Δ f between adjacent epitopes in the abscissa directioniThe adjacent verification stations on the abscissa are required to synchronously perform verification at the interval of the frequency difference, and no interference occurs between signals; minimum frequency difference Δ f between adjacent epitopes in the ordinate directionjThe adjacent verification stations on the ordinate are required to synchronously perform verification when the frequency difference is separated, and no interference occurs between signals; the minimum table potential difference delta i of adjacent frequencies in the abscissa direction requires that verification stations with interval delta i-1 table potential differences on the abscissa perform verification synchronously when the frequency difference is 1MHz, and no interference occurs between signals; the minimum meter potential difference delta j of adjacent frequencies in the direction of the ordinate requires that verification stations with interval delta j-1 meter potential differences on the ordinate synchronously perform verification when the frequency difference is 1MHz, and no interference occurs between signals; same-frequency minimum table difference delta i in abscissa directioneqRequiring an interval Δ i on the abscissaeqThe verification stations with the meter difference of 1 synchronously perform verification when the frequencies are equal, and no interference occurs between signals; same-frequency minimum table difference delta j in ordinate directioneqRequiring an interval Δ j on the ordinateeqAnd (4) synchronously verifying the verification stations with the meter difference of 1 at equal frequency without interference among signals.
4. The channel frequency hopping method of the large-scale verification system for the wireless pulse mode metrological equipment as claimed in claim 1, characterized in that: step 3)In the method, because the two same-frequency stations at corresponding positions between two groups must be ensured not to generate interference, the size of each group is temporarily set to be delta iMAX＝MAX(ΔiΔfi,Δieq)，ΔjMAX＝MAX(ΔjΔfj,Δjeq)，iMAX/jMAXFor each set of abscissa/ordinate maxima, respectively, in the secondary mapping, the first level maps the certification workstation with coordinates (i, j) to the intermediate serial number m (i, j), as follows:
m(i,j)＝Δfkmod(i,Δik)+ΔfkΔikmod(j,Δjk)+mi(fix(i/Δik))+Δikmj(fix(j/Δjk))
in the formula mi(i)/mj(j) Respectively, the scatter mapping of the horizontal/vertical coordinate serial numbers; Δ ik＝Δi/Δki，ΔkiThe dispersion factor is based on the serial number dispersion mapping of the abscissa; Δ jk＝Δj/Δkj，ΔkjThe dispersion factor is based on the ordinate serial number dispersion mapping; each set of dimensions is corrected to Δ iMAX＝MAX(ΔikΔfi,Δieq)，ΔjMAX＝MAX(ΔjkΔfj,Δjeq)；Δfk＝MAX(Δfi,Δfj,fix(iMAXjMAX)/(ΔikΔjk) ); mod (·) is a remainder function; fix (. cndot.) is a rounding function;
second-level mapping intermediate sequence number m to available frequency band full-ordered set FpAnd obtaining a group frequency distribution table at the mth frequency point in the table.
5. The scatter mapping in the channel hopping method of the wireless pulse mode metrological equipment large scale certification system as claimed in claim 4, characterized in that: firstly according to a dispersion factor delta ki、ΔkjAll find Δ i to 1k、Δjk(ii) a If at this time iMAX/ΔikAnd jMAX/ΔjkGreater in between, assume iMAX/ΔikSatisfies the following formula:
iMAX/Δik≥Δk+1-1/Δk
where Δ k is the largest integer satisfying the inequality, if Δ k<2, then the dispersion factor Δ ki＝Δkj1, and the dispersion mapping is an identity mapping; if Δ k is greater than or equal to 2, the dispersion factor Δ kiΔ k, and the dispersion map can be written as:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567026.6A CN112702082B (en) | 2020-12-25 | 2020-12-25 | Channel frequency hopping method of large-scale verification system of wireless pulse mode metering equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567026.6A CN112702082B (en) | 2020-12-25 | 2020-12-25 | Channel frequency hopping method of large-scale verification system of wireless pulse mode metering equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112702082A true CN112702082A (en) | 2021-04-23 |
| CN112702082B CN112702082B (en) | 2022-07-12 |
Family
ID=75510858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011567026.6A Active CN112702082B (en) | 2020-12-25 | 2020-12-25 | Channel frequency hopping method of large-scale verification system of wireless pulse mode metering equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112702082B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130285833A1 (en) * | 2012-04-26 | 2013-10-31 | Landis+Gyr Innovations, Inc. | Tamper detection for pulse-producing device |
| CN111028495A (en) * | 2019-12-06 | 2020-04-17 | 中国电力科学研究院有限公司 | Method and device for calibrating electric energy meter based on low-power-consumption Bluetooth communication |
-
2020
- 2020-12-25 CN CN202011567026.6A patent/CN112702082B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130285833A1 (en) * | 2012-04-26 | 2013-10-31 | Landis+Gyr Innovations, Inc. | Tamper detection for pulse-producing device |
| CN111028495A (en) * | 2019-12-06 | 2020-04-17 | 中国电力科学研究院有限公司 | Method and device for calibrating electric energy meter based on low-power-consumption Bluetooth communication |
Non-Patent Citations (2)
| Title |
|---|
| 吴钢: "多功能电能表网络集中控制检测的实现", 《江苏电机工程》 * |
| 路瑞军等: "手持式激光测距仪自动检定装置的研究", 《中国测试》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112702082B (en) | 2022-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104316903B (en) | A kind of three station positioning using TDOA performance test appraisal procedures | |
| CN101399621B (en) | Spacial radio frequency performance test method and system | |
| CN203275647U (en) | Multichannel signal amplitude phase difference measuring system | |
| CN102324944B (en) | Antenna calibration method and device | |
| CN103139902A (en) | Wireless positioning method, device and system | |
| CN104521297B (en) | mobile terminal location measurement processing method and device | |
| CN104270767A (en) | Method suitable for enabling wireless power private network to be broadband | |
| CN104502900A (en) | Single-frequency network radar multi-target tracking method | |
| US20220252690A1 (en) | Nr positioning enhancement for timing and angle based methods and resource aggregation | |
| CN112702082B (en) | Channel frequency hopping method of large-scale verification system of wireless pulse mode metering equipment | |
| CN105978644A (en) | Cuckoo search algorithm based satellite-land cognitive system frequency spectrum access method | |
| CN106034355A (en) | Method and apparatus for realizing user positioning | |
| CN102221631B (en) | Laser speed measuring instrument and laser speed measuring method | |
| CN109121083A (en) | A kind of indoor orientation method of the fingerprint similarity based on AP sequence | |
| CN105866636A (en) | Transformer positioning method based on time different positioning | |
| CN102590598A (en) | Method for predicting zero crossing point of ultrasonic signal based on multi-threshold comparison | |
| CN110243464A (en) | A kind of highly resistance Noisy acoustic power grade test modification method suitable for substation field | |
| CN106247921B (en) | High-precision bridge deformation detection method based on RF phse measuring technique | |
| CN103391562A (en) | Method and device for achieving network testing based on uplink interference signals | |
| Wang et al. | A partial discharge localization method in transformers based on linear conversion and density peak clustering | |
| CN105244636B (en) | A kind of conversion coefficient computational methods of spacecraft module internal electric field measurement antenna | |
| CN105281853B (en) | Cognition wireless network primary user's localization method | |
| CN106162615B (en) | PCI confusion or the method, apparatus and equipment of conflict in a kind of solution LAA system | |
| JP2023500276A (en) | SIGNAL PROCESSING METHOD AND RELATED APPARATUS | |
| WO2016141674A1 (en) | Method and system for calibrating downlink and uplink channels of smart antenna, and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |