CN205354325U - Long -range ammeter centralized meter reading system - Google Patents
Long -range ammeter centralized meter reading system Download PDFInfo
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- CN205354325U CN205354325U CN201620127295.3U CN201620127295U CN205354325U CN 205354325 U CN205354325 U CN 205354325U CN 201620127295 U CN201620127295 U CN 201620127295U CN 205354325 U CN205354325 U CN 205354325U
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- frequency hopping
- encrypting
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Abstract
The utility model relates to a long -range ammeter centralized meter reading system, it includes main website (1), main website (1) connection management center host computer (2), printer (3) is connected in administrative center's host computer (2), and main website (1) connects a plurality of concentrators (4) of establishing ties each other through the GPRS network, and alarm (5) and a plurality of wireless power table (6) are connected respectively through wireless network in concentrator (4). Set up an encrypting -decrypting module on the wireless power table (6), set up the 2nd encrypting -decrypting module on concentrator (4). This system has a simple structure practicality, efficient, safe and reliable's advantage.
Description
Technical field
This utility model relates to a kind of remote electricity meters centralized meter-reading system, belong to oppose electricity-stealing, protection of electric power facility technical field.
Background technology
Electric power worker is at protection of electric power facility and investigates and prosecutes stealing, owing to there is no power of administrative law enforcement in the process of promise breaking electricity consumption, so there is personal safety, the hidden danger such as power grid security, particularly checking scene, when running into great and especially big stealing event, need the cooperation of power enforcement supervision detachment and public security department, at present, the means of communication of field force only has hands machine, and be all the personal effects, run into mobile phone and there is no signal, arrearage, the situation such as leave behind, occur that uncontrollable situation is likely to be unable to reach the purpose of warning once on-the-spot, so needing reliable communications facility to carry out alert process.Having in prior art and use wireless meter-reading system, the phenomenon for strike stealing, promise breaking electricity consumption serves certain effect, but wireless meter-reading system also exists and is wirelessly transferred safe problem.Therefore based on the problems referred to above, it is necessary to provide a kind of safe and reliable, electric meter data collecting system that efficiency is high.
Utility model content
The purpose of this utility model is in that to overcome the deficiency of above-mentioned prior art to provide a kind of simple and practical, the electric meter data collecting system that efficiency is high, safe and reliable.
The purpose of this utility model can be reached by following measure:
A kind of remote electricity meters centralized meter-reading system, it includes main website 1, main website 1 connection management central host 2, and administrative center's main frame 2 connects printer 3, main website 1 connects the multiple concentrators 4 being serially connected by GPRS network, and concentrator 4 connects alarm 5 and multiple radio energy table 6 respectively by wireless network；Arranging first sensor, the first wireless communication module, the first single-chip microcomputer and the first power module on radio energy table 6, the first wireless communication module includes the first modem；Arranging the second sensor, the second wireless communication module, second singlechip and second source module on concentrator 4, the second wireless communication module includes second modem；Described radio energy table 6 arranges the first encrypting-decrypting module, described concentrator 4 arranges the second encrypting-decrypting module；Described first encrypting-decrypting module includes the first frequency hopping synthesizer, the first frequency hopping controller and the first wave filter；Described second encrypting-decrypting module includes the second frequency hopping synthesizer, the second frequency hopping controller and the second wave filter；Described first frequency hopping synthesizer and described first frequency hopping controller form the first frequency hopper；Described second frequency hopping synthesizer and described second frequency hopping controller form the second frequency hopper.
Preferably, described wireless network is ZigBee wireless network.
This utility model can produce following good effect compared with the prior art:
1, improve with electric company, entrust through letter, public security department combines work efficiency of handling a case, make related personnel can know the generation of case in the very first time, rush for scene；
2, improve and solve a case success rate, reach quickly and the purpose of alarm, be conducive to ensureing that the personal safety of Field Force and protection stealing are on-the-spot, for retaining evidence, retrieve corporate economy's loss, punish severely stealing and break laws and commit crime and provide safeguard.
3, it is prevented from disabled user and intercepts power information or acquisition instructions, it is ensured that the safety and precise of work of checking meter.
This utility model also has the feature that efficiency is high, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, main website, 2, administrative center's main frame, 3, printer, 4, concentrator, 5, alarm, 6, radio energy table.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred forms of the present utility model is elaborated:
Referring to accompanying drawing 1, a kind of remote electricity meters centralized meter-reading system, it includes main website 1, main website 1 is connection management central host 2 respectively, administrative center's main frame 2 connects printer 3, main website 1 connects the multiple concentrators 4 being serially connected by GPRS network, and concentrator 4 connects alarm 5 and multiple radio energy table 6 respectively by wireless network.
It is how many that radio energy table 6 is used for metering user electricity consumption, and meter reading can pass to concentrator 4 by wireless network, and a concentrator can connect 40-60 electric energy meter.
The functions such as concentrator 4 has in data acquisition, data set, data transmission, are distributed in all supply terminals in electric company area under one's jurisdiction, and the alarm signal that the electric energy meter data collected and alarm 5 send can be transferred to main website by it.
Main website 1 collects the data of all concentrators transmission by GPRS network, and stores data in and display on administrative center's main frame 2, or passes through printer output.
Main website 1 receives the alarm signal that alarm 5 sends can automatically analyze out alert locations according to concentrator numbering, and send caution sound and printed relevant information by printer by administrative center's main frame 2, main website staff hears, see after notify electric company, Public Security Organs immediately, rush towards live assistance through the related personnel of letter committee and process.
Wherein, radio energy table 6 arranging first sensor, the first wireless communication module, the first single-chip microcomputer and the first power module, the first wireless communication module includes the first modem.Arranging the second sensor, the second wireless communication module, second singlechip and second source module on concentrator 4, the second wireless communication module includes second modem.
First power module provides power supply for the work of described radio energy table 6, and described second source module provides power supply for described concentrator 4.What described first power module and described second source module provided is all DC source.
When described concentrator 4 to carry out power information Collecting operation, described second singlechip send information gathering instruction, and described acquisition instructions is transformed into by described second modem the radiofrequency signal of acquisition instructions.First sensor on described radio energy table 6 is after the radiofrequency signal receiving described acquisition instructions, receive the radiofrequency signal of described acquisition instructions by the first wireless communication module described in described first Single-chip Controlling, then by described first modem, the radiofrequency signal of described acquisition instructions is transformed into acquisition instructions.Then described radio energy table 6 carries out power information collection.
Described radio energy table 6 is after the power information of the user made a copy of, and described power information is changed into the radiofrequency signal of power information by described first modem, and described first wireless communication module sends the radiofrequency signal of described power information.
On described concentrator 4, the second sensor is in the radiofrequency signal detecting described power information, controls described second wireless communication module by described second singlechip and receives the radiofrequency signal of described power information.The radiofrequency signal of described power information is transformed into power information by described second modem, and is saved in the storage chip of described concentrator 4.
Described radio energy table 6 arranges the first encrypting-decrypting module, described concentrator 4 arranges the second encrypting-decrypting module.
First encrypting-decrypting module, the second encrypting-decrypting module a kind of embodiment may is that described first encrypting-decrypting module is an AES module, described second encrypting-decrypting module is the 2nd AES module.The effect of a described AES module is in that by aes algorithm, the radiofrequency signal of described power information to carry out AES encryption or the radiofrequency signal of described acquisition instructions is carried out AES deciphering；The effect of described 2nd AES module is in that by aes algorithm, the radiofrequency signal of described acquisition instructions to carry out AES encryption or the radiofrequency signal of described power information is carried out AES deciphering.Adopting a described AES module, the effect of described 2nd AES module is in that: described power information or described acquisition instructions carry out high-order encryption end to end, improves described power information or the safety of described acquisition instructions.Aes algorithm is the algorithm of the best high-order encryption generally acknowledged at present.
First encrypting-decrypting module, the second encrypting-decrypting module the second embodiment: described first encrypting-decrypting module includes the first frequency hopping synthesizer, the first frequency hopping controller and the first wave filter；Described second encrypting-decrypting module includes the second frequency hopping synthesizer, the second frequency hopping controller and the second wave filter；Described first frequency hopping synthesizer and described first frequency hopping controller form the first frequency hopper；Described second frequency hopping synthesizer and described second frequency hopping controller form the second frequency hopper.
In the process that described power information is transmitted, in described first encrypting-decrypting module: described first frequency hopping controller is core component, its effect includes that the pattern to external Frequency Hopping Signal produces, synchronizes, self adaptation is controlled；Described first frequency hopping synthesizer synthesizes required external Frequency Hopping Signal frequency under the control of frequency hopping controller.
In the system of traditional frequency fixing communication, arranging king oiscillator in wireless communication module, the frequency of oscillation of described king oiscillator is fixedly installed, thus its carrier frequency is fixing.In order to obtain the Frequency Hopping Signal that carrier frequency is saltus step, it is desirable to the frequency of king oiscillator should be able to change in accordance with control instruction.This generation Frequency Hopping Signal, it is similar to the device of king oiscillator frequency hopper.
In this utility model, the radiofrequency signal of described power information can be analogue signal or digital signal.Radiofrequency signal and the described external Frequency Hopping Signal of described power information are mixed by described first frequency hopping synthesizer, export satisfactory Frequency Hopping Signal, and are launched by described first wireless communication module.This Frequency Hopping Signal falls within radiofrequency signal.
In described power information reception process, first it is filtered by described second wave filter, carries out being mixed produced impact eliminating the first frequency hopping synthesizer, obtain the radiofrequency signal of described power information.And the radiofrequency signal of described power information enters described second modem, through the demodulation of described second modem, finally giving is exactly power information.
In order to ensure quality and the safety of described Frequency Hopping Signal, it is desirable to described power information exceed an intermediate frequency from the output frequency of described first wireless communication module than external Frequency Hopping Signal produced by described frequency hopping controller.Because the frequency of external Frequency Hopping Signal is saltus step, then requires to be mixed through described first frequency hopping synthesizer frequency saltus step also with the saltus step rule of extraneous signal of Frequency Hopping Signal of described output, so could pass through to be mixed one fixing intermediate-freuqncy signal of acquisition.And the described Frequency Hopping Signal that described second wireless communication module receives is than one intermediate frequency of external Frequency Hopping Signal frequency phase-difference of receiving.So be conducive to described second wave filter that described Frequency Hopping Signal is filtered.
The frequency hopping code sequence that described Frequency Hopping Signal is conventional is based on the pseudo-random sequence of the designs such as m-sequence, M sequence, RS code.These pseudo-random code sequences add feedback arrangement by shift register and realize, such Frequency Hopping Signal simple in construction, stable performance, it is possible to comparatively fast realize synchronizing.They can realize the longer cycle.
Described first encrypting-decrypting module is adopted to include the first frequency hopping synthesizer, the first frequency hopping controller and the first wave filter；After described second encrypting-decrypting module includes the technical scheme of the second frequency hopping synthesizer, the second frequency hopping controller and the second wave filter, the disguised enhancing in described power information transmission composition, described power information is also difficult to be intercepted and captured by disabled user.As long as disabled user does not know the saltus step rule of described Frequency Hopping Signal, it is difficult to intercept and capture described power information.Meanwhile, the capacity of resisting disturbance in described power information transmitting procedure strengthens, even if having part frequency disturbed in described power information transmitting procedure, remains to communicate normally on the frequency that other are not disturbed.In described power information transmitting procedure, it is also easy to the hardware compatibility with other.
In the process that described acquisition instructions is transmitted, in described second encrypting-decrypting module: described second frequency hopping controller is core component, including the pattern of external Frequency Hopping Signal being produced, synchronizes, self adaptation is controlled；Described second frequency hopping synthesizer synthesizes required external Frequency Hopping Signal frequency under the control of described second frequency hopping controller.
The radiofrequency signal of described acquisition instructions can be analogue signal or digital signal.Radiofrequency signal and the described external Frequency Hopping Signal of described power information are mixed by described second frequency hopping synthesizer, export satisfactory Frequency Hopping Signal, and are launched by described second wireless communication module.This Frequency Hopping Signal falls within radiofrequency signal.
In described power information reception process, first by described first filter filtering, carry out being mixed produced impact eliminating the second frequency hopping synthesizer, obtain the radiofrequency signal of described acquisition instructions.And the radiofrequency signal of described acquisition instructions enters described first modem, through the demodulation of described first modem, finally giving is exactly power information.Described power information carries out the collection of power information after passing to described electric energy meter by described RS485 bus.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; change can be readily occurred in or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with described scope of the claims.
Claims (2)
1. a remote electricity meters centralized meter-reading system, it includes main website (1), main website (1) connection management central host (2), administrative center's main frame (2) connects printer (3), main website (1) connects the multiple concentrators (4) being serially connected by GPRS network, and concentrator (4) connects alarm (5) and multiple radio energy table (6) respectively by wireless network；Arranging first sensor, the first wireless communication module, the first single-chip microcomputer and the first power module on radio energy table (6), the first wireless communication module includes the first modem；Arranging the second sensor, the second wireless communication module, second singlechip and second source module on concentrator (4), the second wireless communication module includes second modem；Arranging the first encrypting-decrypting module on described radio energy table (6), described concentrator arranges the second encrypting-decrypting module on (4)；Described first encrypting-decrypting module includes the first frequency hopping synthesizer, the first frequency hopping controller and the first wave filter；Described second encrypting-decrypting module includes the second frequency hopping synthesizer, the second frequency hopping controller and the second wave filter；Described first frequency hopping synthesizer and described first frequency hopping controller form the first frequency hopper；Described second frequency hopping synthesizer and described second frequency hopping controller form the second frequency hopper.
2. system according to claim 1, it is characterised in that described wireless network is ZigBee wireless network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127295.3U CN205354325U (en) | 2016-02-18 | 2016-02-18 | Long -range ammeter centralized meter reading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127295.3U CN205354325U (en) | 2016-02-18 | 2016-02-18 | Long -range ammeter centralized meter reading system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205354325U true CN205354325U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620127295.3U Expired - Fee Related CN205354325U (en) | 2016-02-18 | 2016-02-18 | Long -range ammeter centralized meter reading system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205354325U (en) |
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2016
- 2016-02-18 CN CN201620127295.3U patent/CN205354325U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20170218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |