CN107894580A - A kind of family table check device - Google Patents
A kind of family table check device Download PDFInfo
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- CN107894580A CN107894580A CN201711212825.XA CN201711212825A CN107894580A CN 107894580 A CN107894580 A CN 107894580A CN 201711212825 A CN201711212825 A CN 201711212825A CN 107894580 A CN107894580 A CN 107894580A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
The present invention relates to technical field of electric power detection, a kind of more particularly to family table check device, including main frame, extension set first and extension set second, main frame is connected to batch meter electric supply meter end, the pulsed current signal sent for receiving extension set first, and the power carrier signal for including ammeter information is sent to extension set first, and for by under ammeter corresponding to the shortwave FM signal injection containing current ammeter information；The indoor power delivery circuit end of first extension set accessing user, for sending pulsed current signal, and the power carrier signal sent by power delivery circuit Receiving Host to main frame by power delivery circuit；Extension set second, for detecting shortwave FM signal, and the user according to corresponding to the ammeter that the intensity of shortwave FM signal confirms current ammeter number outdoors in user.One-man service can be achieved in the family table check device of the present invention during verification, and the degree of accuracy is high and time saving, laborsaving.
Description
Technical field
The present invention relates to technical field of electric power detection, more particularly to a kind of family table check device.
Background technology
It is an extremely universal power supply quality problem that electric energy meter, which is visited one house after another, and the reason for causing to visit one house after another mainly has following
Three kinds of situations：First, electricity box producer makes a mistake when electricity box connect up, and two, installation personnel wrong line when filling table, three, developer
Cause to alter in cloth service conductor and connect.At present ammeter visit one house after another problem investigation and corrigendum during, some users often think from
Own ammeter, which counts, is forbidden, or thinks that table number has been mistaken by Utilities Electric Co., causes it to pay the more electricity charge, and in real process
Due to being all to walk concealed wire in user family, user oneself does not know the electric wire of registering one's residence of oneself yet, causes Utilities Electric Co.'s registration user's electricity
Table mistake.And during routine use, because ammeter is left concentratedly between ammeter, existing ammeter outlet walking to user side
Line makes a mistake, also have user privately reconfiguration line or have individual user by oneself register one's residence electric wire carry other users ammeter it is enterprising
Commit theft the reasons such as electricity, cause more difficult check to correct mistake.
Current family table investigation mode, substantially registered one's residence inspection using power failure, influence user's normal electricity consumption, cause user not
It is full, and be very limited for enterprise or commercial user, this inspection method；In addition, when stealing user has found to check stealing
When, it can also take the method for closing electric equipment to escape and check, and make inspection inefficient, accuracy is also given a discount.It is and existing
The ammeter of technology is verified in work, at least needs 2 people, before people's table, people's user side, is linked up, is wasted time and energy by intercom.
The content of the invention
For problems of the prior art, the present invention provides a kind of family table check device.
The present invention provides a kind of family table check device of embodiment, and the family table check device is connected with power delivery circuit, family
Table check device includes main frame, extension set first and extension set second, wherein：
Main frame is connected to batch meter electric supply meter end, the pulsed current signal sent for receiving extension set first, and to the
Extension set one, which is sent, includes the power carrier signal of ammeter information, and for by the shortwave frequency modulation containing current ammeter information
Under ammeter corresponding to signal injection；
The indoor power delivery circuit end of first extension set accessing user, believe for sending pulse current to main frame by power delivery circuit
Number, and the power carrier signal sent by power delivery circuit Receiving Host；
Extension set second, for detecting shortwave FM signal outdoors in user, and confirmed according to the intensity of shortwave FM signal
User corresponding to the ammeter of current ammeter number.
Further, table check device in family also includes multiple current clamps, and current clamp one end is connected with main frame, other end clamping
In the ammeter outlet position that needs measure；
Main frame is additionally operable to after with ammeter outlet position by electric current clipper joint, the electricity for setting each current clamp to be attached thereto
Table number corresponds；Power carrier signal or shortwave frequency modulation letter are sent to user is indoor by current clamp and power delivery circuit
Number.
Further, main frame includes current signal processing unit, main frame MCU control unit, main frame display unit, wireless tune
Frequency unit and power carrier communication unit, wherein：
Current signal processing unit, for being detected to pulsed current signal and pulsed current signal being converted into numeral
Signal；
Main frame MCU control unit, for producing control instruction according to data signal, to control power carrier communication unit to produce
The raw power carrier signal for including ammeter information；And/or control wireless frequency modulation unit is produced containing current ammeter information
Shortwave FM signal；
Main frame display unit shows the job information of family table check device.
Further, current signal processing unit includes current signal collection subelement and current signal computation subunit,
Wherein：
Current signal gathers subelement, is calculated after pulsed current signal is filtered into processing, then by current signal
Subelement is converted into data signal.
Further, main frame also includes keyboard, and ammeter information to be measured is set by keyboard.
Further, extension set first includes pulse current generation unit, the first control unit, the first display unit, electric power
Carrier wave receiving unit and the first power subsystem, wherein：
Pulse current generation unit, the first display unit, power carrier receiving unit, the first power subsystem are controlled with first
Unit connection processed；Pulse current generation unit is sent into main frame according to the control instruction of the first control unit by power delivery circuit
Pulsed current signal；The power carrier signal that power carrier receiving unit Receiving Host is sent, and power carrier signal is converted
For data signal；First control unit carries out result according to the display unit of Digital Signals first of power carrier signal and shown
Show；
First power subsystem is that pulse current generation unit, the first control unit, the first display unit and power carrier connect
Receive unit power supply.
Further, extension set second includes fm demodulation unit, the second control unit, the second display unit and the second electricity
Source unit, wherein：
Fm demodulation unit, the second display unit and second source unit are connected with the second control unit；
Fm demodulation unit receives shortwave FM signal, and shortwave FM signal is converted into data signal；Second control
Unit carries out result according to the display unit of Digital Signals second of shortwave FM signal and shown；
Second source unit is fm demodulation unit, the second control unit and the power supply of the second display unit.
Further, fm demodulation unit includes clock circuit subelement, mixting circuit subelement, detecting circuit subelement
And signal strength conditioning subelement, wherein：
Shortwave FM signal passes sequentially through the signal amplification and filtering, the inspection of detecting circuit subelement of mixting circuit subelement
The digital demodulation of ripple, signal strength conditioning subelement, data signal is converted into by shortwave FM signal.
Further, main frame MCU control module and current signal processing unit, main frame display unit, wireless frequency modulation unit,
Power carrier communication unit is attached by I/O mouths or serial ports.
Further, the first power subsystem and second source unit include charging circuit subelement, rechargeable battery with
And voltage output subelement, wherein：
Charging circuit subelement, is connected with rechargeable battery, is chargeable electricity for electric main to be changed into direct current
Charge in pond；
Voltage output subelement, is connected with rechargeable battery, for the electric energy stored in rechargeable battery to be adjusted
And powered for extension set first or extension set second.
The family table check device of the present invention, has the advantages that：
Main frame can both realize the transmission of ammeter information between extension set first by power carrier signal, can also be with
The transmission of ammeter information is carried out between extension set second by shortwave FM signal, extension set first is with extension set second respectively by having
Line carries out family table verification with wireless signal transmission form, it is allowed to verified in the case of inspection of registering one's residence from extension set first,
Verified when registering one's residence more inconvenient from extension set second；Main frame is connected to batch meter electric supply meter end during verification
Afterwards, staff carries extension set first or extension set second and verified, and realizes one-man service, the degree of accuracy is high and time saving,
It is laborsaving.
Brief description of the drawings
, below will be to embodiment or existing for the clearer explanation embodiment of the present invention or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it is clear that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of family table check device measurement circuit figure of the present invention；
Fig. 2 is a kind of another measurement circuit figure of family table check device of the present invention；
Fig. 3 is a kind of family table check device host module composition figure of the present invention；
Fig. 4 is a kind of another module composition figure of family table check device main frame of the present invention；
Fig. 5 is a kind of another module composition figure of family table check device main frame of the present invention；
Fig. 6 is a kind of family table check device extension set first module composition figure of the present invention；
Fig. 7 is a kind of family table check device extension set second module composition figure of the present invention；
Fig. 8 is a kind of another module composition figure of family table check device extension set second of the present invention；
1- main frames, 101- current signals processing unit, 1011- current signals collection subelement, 1012- current signals calculate
Subelement, 102- main frames MCU control unit, 103- main frames display unit, 104- wireless frequency modulations unit, 105- power carrier communications
Unit, 106- keyboards, the extension sets of 2- first, 201- pulse currents generation unit, the control units of 202- first, 203- first show list
When member, 204- power carriers receiving unit, the power subsystems of 205- first, the extension sets of 3- second, 301- fm demodulations unit, 3011-
Clock circuit subelement, 3012- mixting circuits subelement, 3013- detecting circuits subelement, 3014- signal strengths conditioning subelement,
The control units of 302- second, the display units of 303- second, 304- second source units.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the embodiment of the present invention is carried out it is clear, completely retouch
State, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the present invention
In embodiment, all other reality that those skilled in the art is obtained on the premise of creative work is not made
Example is applied, belongs to protection scope of the present invention.
The present invention provides a kind of family table check device of embodiment, and family table check device is connected with power delivery circuit, family table core
Looking into device includes main frame 1, the first extension set 2 and the second extension set 3, and wherein main frame 1 is connected to batch meter electric supply meter end, for connecing
The pulsed current signal of the first extension set 2 transmission is received, and the power carrier signal for including ammeter information is sent to the first extension set 2,
And for by under ammeter corresponding to the shortwave FM signal injection containing current ammeter information；The accessing user of extension set first 2
Indoor power delivery circuit end, for sending pulsed current signal to main frame 1 by power delivery circuit, and received by power delivery circuit
The power carrier signal that main frame 1 is sent；Second extension set 3, for detecting shortwave FM signal outdoors in user, and adjusted according to shortwave
The intensity of frequency signal confirms the user corresponding to the ammeter of current ammeter number.
Specifically, family table check device also includes multiple current clamps, current clamp one end is connected with main frame 1, other end clamping
In the ammeter outlet position that needs measure；Main frame 1 is additionally operable to after with ammeter outlet position by electric current clipper joint, is set each
The ammeter number that current clamp is attached thereto corresponds；Believed by current clamp and power delivery circuit to the indoor power carrier that sends of user
Number or shortwave FM signal.Realize and electrically connect by current clamp, power delivery circuit between main frame 1 and the first extension set 2, realize pulse
The transmission of current signal and power carrier signal；Between the extension set 3 of main frame 1 and second, shortwave frequency modulation is transmitted by power delivery circuit and believed
Number, the second extension set 3 receives shortwave FM signal and realizes wireless connection.
Specifically as shown in Figures 1 and 2, the connection being not drawn into wherein Fig. 1 and Fig. 2 between power network and ammeter, is said
It is bright；Fig. 1 carries out the process and connected mode of ammeter verification between the extension set 2 of main frame 1 and first by pulsed current signal, should
Process specifically includes：Main frame 1 is connected to batch meter electric supply meter end by current clamp, it is indoor that the first extension set 2 is connected to user
Power delivery circuit end, such as on socket, pulsed current signal, pulse current letter are sent to main frame 1 by power delivery circuit
Number user label information is included, sent again after being encoded by the first extension set 2, because fluctuation occurs in power network current, it is easy to go out
Existing flase drop or missing inspection, after being encoded to pulsed current signal, the pulsed current signal that main frame 1 receives after encoding is solved
Code, the user label where extension set first 2 is determined, and determine that the first extension set 2 has been coupled to position, pulsed current signal is passed through
The operation of coding and decoding, the antijamming capability of signal transmission is improved, so that detection is more accurate；In addition, for wiping out background
Noise, the power frequency of pulsed current signal is in 50Hz zero by the way of digital differential encodes and caused by the mode of timesharing decoding
Near point, the transient current of pulsed current signal is big, hence it is evident that is different from the electric current of household electrical appliance formation, is more favorable for detecting.It is main
After machine 1 receives the pulsed current signal of the first extension set 2 transmission, electric power is sent to the power delivery circuit for transmitting pulsed current signal
Carrier signal, because the carrier frequency of power carrier signal is serious by mains by harmonics interference effect, it is near propagation distance often occur,
Or can not communicate, timesharing serious interference, the problem of cutting in and out, be unfavorable for Field Force and be made instantly available result, therefore this hair
The bright power frequency zero passage communication scheme that employs carries out data communication, the long transmission distance of power frequency zero passage communication scheme, antijamming capability
By force, communication robust is reliable, is highly suitable for that communication data amount is few, but requires reliable and stable occasion；Power carrier signal simultaneously
Also coding and decoding operation is carried out, the mode present invention of coding and decoding is not specifically limited, and Software Coding decoding response range is wide, no
Easy flase drop and missing inspection, and hardware encoding decoding response range is narrow, but high sensitivity, under different operating environment, can voluntarily it select
Select；After first extension set 2 receives power carrier signal, by decoding the ammeter information for confirming wherein to include, main frame 1 is learnt
Measurement result, so realize a complete measurement process.
Fig. 2 carries out process and the connection side of ammeter verification between the extension set 3 of main frame 1 and second by shortwave FM signal
Formula, the process specifically include：Main frame 1 is connected to batch meter electric supply meter end, and the A phase points line ball and zero line of main frame 1 connect respectively
The LN leading-out terminals of ammeter measured are needed, shortwave FM signal is generated after the ammeter information is set, is injected into and ammeter
Under number ammeter corresponding to information, according to the situation of signal attenuation, increase wave filter in the ammeter lead-in wire terminal, prevent shortwave frequency modulation letter
Number to other ammeters spread；Second extension set 3 is investigated successively in front of the door to user, passes through the strong of the shortwave FM signal to reception
Degree is detected, and determines the user corresponding to the ammeter corresponding with ammeter information.Shortwave FM signal uses narrowband slice,
Such as 29.6M frequency ranges, 29.6M frequency ranges belong to the frequency range for exempting from radio application, interference will not be produced to other wireless devices,
The normal operation of other wireless devices is not interfered with, the metric wave of 30M frequency ranges can also be used, be relatively adapted to the coupling on power line
Close and propagate.The present invention is not limited the specific frequency range of shortwave FM signal, and being merely illustrative can not be interpreted as pair
The scope of the embodiment of the present invention limits.After shortwave FM signal is injected into power network, due to the influence of power network multiple harmonic, believing
It can be interfered and can not be normally carried out during number demodulation, present invention the characteristics of crest is frequently occurred according to interference signal
Injection and demodulation to signal are improved, and using the interference signal of crest, produce the 50Hz frequencys multiplication of local same synchronized
Signal, digital demodulation is carried out when wireless short wave ripple crosses 50Hz zero points.
Specifically as shown in figure 3, the main frame 1 of the embodiment of the present invention includes current signal processing unit 101, main frame MCU is controlled
Unit 102, main frame display unit 103, wireless frequency modulation unit 104 and power carrier communication unit 105 processed, wherein：Main frame MCU is controlled
Unit 102 processed leads to current signal processing unit 101, main frame display unit 103, wireless frequency modulation unit 104, power carrier respectively
News unit 105 is attached；Current signal processing unit 101, for being detected to pulsed current signal and by pulse current
Signal is converted into data signal；Main frame MCU control unit 102, for producing control instruction according to data signal, to control electric power
Carrier communication unit 105 produces the power carrier signal for including ammeter information；And/or control wireless frequency modulation unit 104 produces
Shortwave FM signal containing current ammeter information；Main frame display unit 103 shows the job information of family table check device.Electricity
Flow signal processing unit 101 and use special digital process chip, multiplex pulse current signal is sampled and calculated point simultaneously
Analysis, the present invention do not limit the model of digital processing chip specifically, only need that design requirement can be realized, in addition, the present invention is right
The concrete structure of main frame MCU control unit 102 and other functional modules is not construed as limiting, and has a variety of can be achieved in the prior art
The design method of identical function, install and manufacture regarding specifically used environmental selection.
Specifically as shown in figure 4, on the basis of a upper embodiment, the current signal processing unit 101 in main frame 1 includes
Current signal gathers subelement 1011 and current signal computation subunit 1012, and wherein pulsed current signal gathers through current signal
After subelement 1011 is filtered processing, then data signal is converted into by current signal computation subunit 1012 and sent to main frame
MCU control unit 102 is handled accordingly.
Specifically as shown in figure 5, the main frame 1 of the present embodiment includes current signal processing unit 101, main frame MCU control lists
Member 102, main frame display unit 103, wireless frequency modulation unit 104 and power carrier communication unit 105, in addition to keyboard 106, work
Personnel set ammeter information to be measured by keyboard 106, such as after current clamp is connected, input each current clamp pair respectively
The table number information for the ammeter answered, or realize by keyboard 106 setting and operation of other functions.
Specifically as shown in fig. 6, first extension set 2 of the present embodiment includes the control list of pulse current generation unit 201, first
First 202, first display unit 203, the power subsystem 205 of power carrier receiving unit 204 and first, wherein：Pulse current is given birth to
Into unit 201, the first display unit 203, power carrier receiving unit 204, the first power subsystem 205 with the first control unit
202 connections；Pulse current generation unit 201 according to the control instruction of the first control unit 202 by power delivery circuit into main frame 1
Send pulsed current signal；The power carrier signal that the Receiving Host 1 of power carrier receiving unit 204 is sent, and by power carrier
Signal is converted into data signal；First control unit 202 is according to the display unit of Digital Signals first of power carrier signal
203 progress results are shown；First power subsystem 205 is pulse current generation unit 201, the display of the first control unit 202, first
Unit 203 and power carrier receiving unit 204 are powered.The present invention forms to each functional module particular hardware in the first extension set 2
Do not limit, design function is realized using product of the prior art.
Specifically as shown in fig. 7, the second extension set 3 includes fm demodulation unit 301, the second control unit 302, second is shown
Unit 303 and second source unit 304, wherein：Fm demodulation unit 301, the second display unit 303 and second source list
Member 304 is connected with the second control unit 302；Fm demodulation unit 301 receives shortwave FM signal, and by shortwave FM signal
It is converted into data signal；Second control unit 302 is entered according to the second display unit of Digital Signals 303 of shortwave FM signal
Row result is shown；Second source unit 304 is fm demodulation unit 301, the second control unit 302 and the second display unit 303
Power supply.Second extension set 3 of the present embodiment is with first extension set 2 of above-described embodiment using existing electronic device in the prior art
Installation composition, does not limit concrete model or manufacturer of device etc., the first display unit 203 and the second display unit
303 can use LCDs, or the other kinds of display screen that cost is relatively low, visual effect is slightly worse.
Specifically as shown in figure 8, second extension set 3 of the present embodiment includes fm demodulation unit 301, the second control unit
302nd, the second display unit 303 and second source unit 304, on the basis of a upper embodiment, the frequency modulation in the present embodiment
Demodulating unit 301 includes clock circuit subelement 3011, mixting circuit subelement 3012, detecting circuit subelement 3013 and letter
Number strong and weak conditioning subelement 3014, shortwave FM signal pass sequentially through the signal amplification of mixting circuit subelement 3012 and filtering,
The detection of detecting circuit subelement 3013, the digital demodulation of signal strength conditioning subelement 3014, shortwave FM signal is converted
For data signal.
Specifically, the main frame MCU control module 102 in above example is shown with current signal processing unit 101, main frame
Unit 103, wireless frequency modulation unit 104, power carrier communication unit 105 are attached by I/O mouths or serial ports.First point
Machine 2 is attached with each functional module in the second extension set 3 also by I/O mouths or serial ports.
Specifically, the first power subsystem 205 in the first extension set 2 wraps with the second source unit 304 in the second extension set 3
Charging circuit subelement, rechargeable battery and voltage output subelement, wherein charging circuit subelement are included, with rechargeable battery
Connection, charged for electric main to be changed into direct current for rechargeable battery；Voltage output subelement, connect with rechargeable battery
Connect, for being adjusted the electric energy stored in rechargeable battery and being that the first extension set 2 or the second extension set 3 are powered.
In the table check device of whole family, main frame both can realize ammeter number between extension set first by power carrier signal
The transmission of information, the transmission of ammeter information, extension set first can also be carried out by shortwave FM signal between extension set second
Family table verification is carried out with extension set second with wireless signal transmission form by wired respectively, it is allowed to is selected in the case of inspection of registering one's residence
Verified with extension set first, verified when registering one's residence more inconvenient from extension set second；Main frame is connected during verification
After being connected on batch meter electric supply meter end, staff carries extension set first or extension set second is verified, and realizes one
Operation, the degree of accuracy are high and time saving, laborsaving.
The present invention is further described by specific embodiment above, it should be understood that, here specifically
Description, should not be construed as the restriction to the spirit and scope of the invention, and one of ordinary skilled in the art is reading this explanation
The various modifications made after book to above-described embodiment, belong to the scope that the present invention is protected.
Claims (10)
1. a kind of family table check device, it is characterised in that the family table check device is connected with power delivery circuit, and the family table is verified
Device includes main frame, extension set first and extension set second, wherein：
The main frame is connected to batch meter electric supply meter end, the pulsed current signal sent for receiving extension set first, and
The power carrier signal for including ammeter information is sent to extension set first, and for current ammeter information will to be contained
Under ammeter corresponding to the injection of shortwave FM signal；
The indoor power delivery circuit end of the accessing user of extension set first, for sending the arteries and veins to the main frame by power delivery circuit
Current signal is rushed, and the power carrier signal of the main frame transmission is received by power delivery circuit；
Extension set second, for detecting the shortwave FM signal outdoors in user, and according to the shortwave FM signal
Intensity confirms the user corresponding to the ammeter of current ammeter number.
2. table check device in family as claimed in claim 1, it is characterised in that the family table check device also includes multiple electric currents
Pincers, described current clamp one end are connected with the main frame, and the other end is connected to the ammeter outlet position for needing to measure；
The main frame is additionally operable to after with ammeter outlet position by the electric current clipper joint, sets each current clamp therewith
The ammeter number of connection corresponds；The power carrier signal is sent to user is indoor by the current clamp and power delivery circuit
Or the shortwave FM signal.
3. table check device in family as claimed in claim 2, it is characterised in that the main frame include current signal processing unit,
Main frame MCU control unit, main frame display unit, wireless frequency modulation unit and power carrier communication unit, wherein：
The current signal processing unit, for being detected to the pulsed current signal and turning the pulsed current signal
Turn to data signal；
The main frame MCU control unit, for producing control instruction according to data signal, to control the power carrier communication list
Member produces the power carrier signal for including ammeter information；And/or the control wireless frequency modulation unit is produced containing current
The shortwave FM signal of ammeter information；
The main frame display unit, for showing the job information of the family table check device.
4. table check device in family as claimed in claim 3, it is characterised in that the current signal processing unit is believed including electric current
Number collection subelement and current signal computation subunit, wherein：
The current signal gathers subelement, after the pulsed current signal is filtered into processing, then by the electric current
Signal of change subelement is converted into data signal.
5. table check device in family as claimed in claim 3, it is characterised in that the main frame also includes keyboard, passes through the key
Disk sets ammeter information to be measured.
6. table check device in family as claimed in claim 2, it is characterised in that it is single that extension set first includes pulse current generation
Member, the first control unit, the first display unit, power carrier receiving unit and the first power subsystem, wherein：
The pulse current generation unit, first display unit, the power carrier receiving unit, the first power supply list
Member is connected with first control unit；
The pulse current generation unit is according to the control instruction of first control unit by power delivery circuit to the main frame
It is middle to send the pulsed current signal；The power carrier receiving unit receives the power carrier letter that the main frame is sent
Number, and the power carrier signal is converted into data signal；First control unit is according to the power carrier signal
First display unit described in Digital Signals carries out result and shown；
First power subsystem carries with pulse current generation unit, the first control unit, the first display unit and electric power respectively
It is single that the connection of ripple receiving unit thinks that pulse current generation unit, the first control unit, the first display unit and power carrier receive
Member power supply.
7. table check device in family as claimed in claim 6, it is characterised in that extension set second include fm demodulation unit,
Second control unit, the second display unit and second source unit, wherein：
The fm demodulation unit, second display unit and second source unit connect with second control unit
Connect；
The fm demodulation unit receives the shortwave FM signal, and the shortwave FM signal is converted into data signal；
Second control unit, second display unit according to the Digital Signals of the shortwave FM signal carries out result and shown
Show；
The second source unit is connected with fm demodulation unit, the second control unit and the second display unit respectively and thinks frequency modulation
Demodulating unit, the second control unit and the power supply of the second display unit.
8. table check device in family as claimed in claim 7, it is characterised in that the fm demodulation unit includes clock circuit
Unit, mixting circuit subelement, detecting circuit subelement and signal strength conditioning subelement, wherein：
The shortwave FM signal passes sequentially through signal amplification and filtering, the detecting circuit of the mixting circuit subelement
The detection of unit, the digital demodulation of signal strength conditioning subelement, data signal is converted into by the shortwave FM signal.
9. table check device in family as claimed in claim 3, it is characterised in that the main frame MCU control module and current signal
Processing unit, main frame display unit, wireless frequency modulation unit, power carrier communication unit are connected by I/O mouths or serial ports
Connect.
10. table check device in family as claimed in claim 7, it is characterised in that first power subsystem and the described second electricity
Source unit includes charging circuit subelement, rechargeable battery and voltage output subelement, wherein：
The charging circuit subelement, is connected with the rechargeable battery, is described for electric main to be changed into direct current
Rechargeable battery charges；
The voltage output subelement, is connected with the rechargeable battery, for the electric energy that will be stored in the rechargeable battery
Be adjusted and be extension set first or extension set second power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212825.XA CN107894580A (en) | 2017-11-28 | 2017-11-28 | A kind of family table check device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711212825.XA CN107894580A (en) | 2017-11-28 | 2017-11-28 | A kind of family table check device |
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| CN107894580A true CN107894580A (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711212825.XA Pending CN107894580A (en) | 2017-11-28 | 2017-11-28 | A kind of family table check device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414882A (en) * | 2018-04-13 | 2018-08-17 | 深圳市同昌汇能科技发展有限公司 | A kind of not formula of registering one's residence that modulation generates characteristics of low-frequency signal is visited one house after another detector |
| CN109375043A (en) * | 2018-09-30 | 2019-02-22 | 国网福建省电力有限公司南平供电公司 | One kind is visited one house after another detection system and its application method |
| CN109782120A (en) * | 2019-03-14 | 2019-05-21 | 张艺博 | A kind of low-voltage customer line using ultra-low frequency signal is visited one house after another detection method |
| CN110058190A (en) * | 2019-04-12 | 2019-07-26 | 国网湖北省电力有限公司武汉供电公司 | Non- register one's residence does not power off electric energy meter and visits one house after another detection device and method |
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| CN108414882A (en) * | 2018-04-13 | 2018-08-17 | 深圳市同昌汇能科技发展有限公司 | A kind of not formula of registering one's residence that modulation generates characteristics of low-frequency signal is visited one house after another detector |
| CN109375043A (en) * | 2018-09-30 | 2019-02-22 | 国网福建省电力有限公司南平供电公司 | One kind is visited one house after another detection system and its application method |
| CN109782120A (en) * | 2019-03-14 | 2019-05-21 | 张艺博 | A kind of low-voltage customer line using ultra-low frequency signal is visited one house after another detection method |
| CN110275090A (en) * | 2019-04-04 | 2019-09-24 | 国网浙江省电力有限公司丽水供电公司 | The non-formula of registering one's residence of one kind, which is visited one house after another, checks instrument |
| CN110275090B (en) * | 2019-04-04 | 2022-04-08 | 国网浙江省电力有限公司丽水供电公司 | Non-entrance type serial-household checking instrument |
| CN110058190A (en) * | 2019-04-12 | 2019-07-26 | 国网湖北省电力有限公司武汉供电公司 | Non- register one's residence does not power off electric energy meter and visits one house after another detection device and method |
| CN110058190B (en) * | 2019-04-12 | 2021-02-02 | 国网湖北省电力有限公司武汉供电公司 | Device and method for detecting series of users of non-household uninterrupted electric energy meter |
| CN110224403A (en) * | 2019-06-24 | 2019-09-10 | 广州华铭电力科技有限公司 | A kind of dual power supply family table is to line method, apparatus and system |
| CN110618346A (en) * | 2019-08-13 | 2019-12-27 | 深圳供电局有限公司 | Household meter identification method and household meter identification device |
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