CN105528886A - Safe and remote wireless meter reading and charging system - Google Patents
Safe and remote wireless meter reading and charging system Download PDFInfo
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- CN105528886A CN105528886A CN201610065419.4A CN201610065419A CN105528886A CN 105528886 A CN105528886 A CN 105528886A CN 201610065419 A CN201610065419 A CN 201610065419A CN 105528886 A CN105528886 A CN 105528886A
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- 230000005611 electricity Effects 0.000 claims description 10
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- 238000012790 confirmation Methods 0.000 claims description 6
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
A safe and remote wireless meter reading and charging system comprises smart meters, data collectors, coordinators and a management system, wherein each coordinator creates a wireless network with an independent network identity, the corresponding data collectors join the network, each smart meter selects one group of key and encryption algorithm (A) randomly from a key and encryption algorithm matching table, first encryption is performed on power utilization information, a power utilization information frame is generated, the corresponding data collector performs second encryption on the power utilization information frame to generate a new power utilization information frame and sends the power utilization information frame to the corresponding coordinator, and the power utilization information frame is resent if the corresponding data collector receives a resending request frame and analyzes that the network address of the data collector is contained in the frame; the management system monitors a time slot request sent by the coordinators and distributes sending time slots, when the sending time slots are started, the coordinators start to send the power utilization information frames after delaying for a time period and stop sending before the time slots are ended, and the management system performs encryption operation twice on the received power utilization information frames to obtain the power utilization information.
Description
Technical field
The present invention relates to safety long-distance to check meter charging field, be specifically related to a kind of safety long-distance radio meter register charge system.
Background technology
Along with the quickening of China's electrical network intelligent construction process and the development of wireless sensor network technology, many middle electric power meters and the remote meter reading charge system based on wireless sensor network are there is, but on the one hand due to the increase of the data collector in remote meter reading charge system and telegon quantity, gather the data uploaded and constantly become huge, cause communication blocking, loss of data, greatly have impact on the accuracy of electric energy tariffing, real-time and reliability, on the other hand, due to current electric energy meter, data collector does not consider data transmission security mostly with communicating of telegon, data are easily stolen in transmitting procedure, distort, make user, power supply unit suffers economic loss.
In order to meet the actual needs of electric system service, the safety long-distance designed based on wireless sensor network technology charge system of checking meter will have very important meaning.
Summary of the invention
The present invention, for overcoming the deficiencies in the prior art, provides a kind of intelligent remote wireless and to check meter charge system.
The present invention solves its technical matters and adopts following technical scheme:
A kind of safety long-distance radio meter register charge system, this system comprises: at least one intelligent electric meter (100), at least one data acquisition unit (200), at least one telegon (300), management system (400), wherein:
Described intelligent electric meter (100) comprises: main controller module (101), for the control to intelligent electric meter modules; Power module (102), for providing stable operating voltage, working current for each module of intelligent electric meter; Memory module (103), for storing the power information of the user that intelligent electric meter collects, the running parameter of intelligent electric meter and key and cryptographic algorithm matching list; Display module (104), for showing duty and the power consumption of intelligent electric meter, electricity charge balance amount information to user; Key-press module (105), for the man-machine interaction between user and intelligent electric meter; Fault detection module (106), for detecting the duty of intelligent electric meter modules; Alarm module (107), sends alarm prompt sound when there are abnormal conditions for intelligent electric meter; Anti-theft module (108), described anti-theft module comprises intelligent electric meter package detection unit and Intelligent ammeter box open detection unit, sends alarm when judging ammeter encapsulation or table case opens by Alarm Unit; Data acquisition module (109), for gathering the power information of energy data comprising voltage, electric current, power, frequency, power factor (PF), phasing degree and consumption; Encrypting module (110), for being encrypted power information to be uploaded; Wireless transport module (111), for uploading to data acquisition unit belonging to intelligent electric meter and receiving information from affiliated data acquisition unit by the power information after encryption;
Described data acquisition unit (200) comprises: main controller module (201), for the control of the modules to data acquisition unit (200); Wireless transport module (202), for receiving power information that intelligent electric meter sends and being uploaded to telegon and being issued to intelligent electric meter (100) from telegon (300) reception information; Memory module (203), for storing power information, information that telegon (300) issues and key and cryptographic algorithm matching list; Encrypting module (204), for being encrypted the power information received;
Described telegon (300) comprises: main controller module (301), for the control of the modules to telegon (200); Wireless transport module (302), for receiving the power information of data acquisition unit transmission and being uploaded to management system and receiving information from management system and be issued to data acquisition unit; Memory module (303), for storing the information that power information issues with administrating system;
Described management system (400) comprises: main controller module (401), for the control of the modules to management system (400); Wireless transport module (402), for receiving power information that telegon (300) sends and to photos and sending messages under telegon; Deciphering module (403), for deciphering the enciphered message of reception; Database module (404), for storing information; Monitoring display module (405), for showing the information of all intelligent electric meters (100) in real time; Accounting module (406), for carrying out charging to the power consumption of intelligent electric meter (100); Short message module (407), for sending the relevant short message of electricity charge information to user;
After described telegon (300) starts, create the wireless network with separate network mark, described network identity is that management system (400) configures, described data acquisition unit (200) obtains the network identity of described telegon (300), transmission adds network request order, send after described telegon (300) receives and adds network request order and add network response command, confirmation is returned to telegon (300) after data acquisition unit (200) receives and adds network response command, unique network address is distributed for data acquisition unit (200) after telegon (300) receives the confirmation information, and the described network address is sent to data acquisition unit (200) and network identity and the network address are sent to management system (400), data acquisition unit (200) upgrades the network address and network identity, management system (400) by the network address corresponding stored of network identity and data acquisition unit (200) in database module (404),
After data acquisition unit (200) adds the network that telegon (300) sets up, the network address of data acquisition unit (200) periodic broadcast self, intelligent electric meter (100) obtains and preserves the network address of described data acquisition unit (200), and the connection request comprising intelligent electric meter (100) identification information is sent to data acquisition unit (200), data acquisition unit (200) is preserved the identification information of intelligent electric meter (100) and is returned successful connection response message to intelligent electric meter (100), the main controller module (101) of intelligent electric meter (100) obtains the power information gathered from data acquisition module (109), power information is sent to encrypting module (110) to be encrypted, ciphering process is: random selecting one group key and cryptographic algorithm (A) in the key that the main controller module (101) of intelligent electric meter (100) stores from memory module (103) and cryptographic algorithm matching list, carries out first time encryption to power information, subsequently, main controller module (101) generates power information frame, this frame comprises the network address of data acquisition unit (200), the power information of mark in matching list of the identification information of intelligent electric meter (100), a group key of selection and cryptographic algorithm (A) and first time encryption, and control wireless transport module (111) and power information frame is uploaded to data acquisition unit (200) belonging to intelligent electric meter (100), after data acquisition unit (200) receives power information frame, by resolving the network address of the data acquisition unit (200) comprised in this frame getting frame, the identification information of intelligent electric meter (100), as judged, this power information frame is that intelligent electric meter belonging to it sends, then preserve power information frame, if not, then abandon this frame, subsequently, random selecting one group key and cryptographic algorithm (B) in the key that the main controller module (201) of data acquisition unit (200) stores from memory module (203) and cryptographic algorithm matching list, second time encryption is carried out to the power information frame preserved, and add a group key of network identity and selection before power information frame after second time encryption and cryptographic algorithm (B) mark in matching list forms new power information frame,
Described telegon (300) is divided into multiple subchannel by with the channel that data acquisition unit (200) carries out communicating, and the plurality of subchannel is distributed to multiple data acquisition unit (200), every sub-channels can be shared by multiple data acquisition unit (200), when a data acquisition unit (200) needs to upload new power information frame, first detect the state distributing to the subchannel of this data acquisition unit (200), if this subchannel is in busy state, then this data acquisition unit (200) enters delayed delivery state and continues to detect sub-channel, if this subchannel is in idle condition, then send data sending request to telegon (300), when data acquisition unit (200) receives after data that telegon (300) returns send and allow message, start to send power information frame, telegon (300) receives after power information frame to data acquisition unit (200) feeding back ACK information, after data transmit time segments terminates, telegon is according to the reception condition of power information frame, generate repeat requests frame, repeat requests frame comprises the network address needing the data acquisition unit retransmitting power information frame and the channel resource retransmitting power information frame, this repeat requests frame broadcasted by telegon, when data acquisition unit receive this repeat requests frame and parse comprise the network address of self in this repeat requests frame time, the re-transmission of power information frame is carried out according to the channel resource distributed, the network identity comprised in the power information frame getting frame received resolved by telegon, and as judged, this power information frame is that data acquisition unit belonging to it (200) sends, then preserve power information frame, if not, then abandon this frame,
Management system (400) intercepts the time slot request that telegon (300) sends, after receiving the time slot request of each telegon, for each telegon distributes data sending time slots, generate and broadcast transmission time slot responses frame, this sending time slots response frame comprises the network identity of telegon and corresponding sending time slots, each telegon (300) is after receiving sending time slots response frame, resolve and obtain sending time slots corresponding to self network identity, when sending time slots arrives, telegon (300) starts to send electric information frame after postponing a period of time and terminates to send before sending time slots terminates prerequisite, the main controller module (401) of management system (400) receives the power information frame that wireless transport module (402) sends, resolve to obtain a group key and the mark of cryptographic algorithm in matching list (B) that network identity and data acquisition unit select and control the power information frame of deciphering module (403) to second time encryption and be decrypted, obtain the network address of data acquisition unit (200), the identification information of intelligent electric meter (100), the group key selected and cryptographic algorithm (A) mark in matching list and the power information of first time encryption, and control the power information deciphering of deciphering module (403) to first time encryption, obtain power information, and by network identity, the network address of data acquisition unit (200), the identification information of intelligent electric meter (100) and the power information after deciphering are stored in database module (404), main controller module (401) reads the power information of all users from database module (404), control the power information that monitoring display module (405) shows intelligent electric meter (100) in real time, main controller module (401) calculates the electricity charge of user according to the power information of user, control short message module (407) and send the short message comprising electricity charge information to user.
Described intelligent electric meter (100), data acquisition unit (200), telegon (300) adopt flush bonding processor with the main controller module of administrating system (400) (101,201,301,401), have ARM7 kernel.
The intelligent electric meter package detection unit that described anti-theft module (108) comprises adopts pressure transducer, Intelligent ammeter box open detection unit to adopt infrared sensor, when carrying out illegal operation to ammeter encapsulation or table case, pressure transducer or infrared sensor can perception immediately send alarm by Alarm Unit.
Described data acquisition unit (200) and telegon (300) send data and advance into dormant state after having gathered data.
The good effect that the present invention produces is: the intelligent electric meter in this system integrates metering, detection, alarm, safety encipher, communication, control, effectively raises the informationization of electrical network, robotization and network management level.The data acquisition unit of system and telegon define the wireless sensor network of a self-organization, and between data acquisition unit and telegon, between telegon and management system, design employs efficient transmission mechanism, effectively avoid the data transmission conflict because number of devices increase causes, ensure that accuracy and the promptness of system acquisition data, management system can show the running status of all intelligent electric meters in real time, and provide charge information in time for user, the management level of power supply unit are effectively provided.
Accompanying drawing explanation
Fig. 1 is the structural principle block diagram of a kind of safety long-distance radio meter register of the present invention charge system.
Fig. 2 is the structured flowchart of intelligent electric meter in the present invention.
Fig. 3 is the structured flowchart of data acquisition unit, telegon in the present invention.
Fig. 4 is the structured flowchart of management system in the present invention.
Fig. 5 is the process flow diagram of system wireless transmitting network data transmission in the present invention.
Embodiment
Below by way of embodiment, and the invention will be further described by reference to the accompanying drawings.
See Fig. 1, for a kind of intelligent remote wireless of the present invention is checked meter the structural principle block diagram of charge system, this system comprises: this system comprises: at least one intelligent electric meter (100), at least one data acquisition unit (200), at least one telegon (300), management system (400), described data acquisition unit (200) connects and manages at least one intelligent electric meter (100), described telegon (300) connects and manages at least one data acquisition unit (200), management system (400) connects and manages at least one telegon (300).
See Fig. 2, be the structured flowchart of intelligent electric meter in the present invention, described intelligent electric meter (100) comprises: main controller module (101), for the control to intelligent electric meter modules; Power module (102), for providing stable operating voltage, working current for each module of intelligent electric meter; Memory module (103), for storing the power information of the user that intelligent electric meter collects, the running parameter of intelligent electric meter and key and cryptographic algorithm matching list; Display module (104), for showing duty and the power consumption of intelligent electric meter, electricity charge balance amount information to user; Key-press module (105), for the man-machine interaction between user and intelligent electric meter; Fault detection module (106), for detecting the duty of intelligent electric meter modules; Alarm module (107), sends alarm prompt sound when there are abnormal conditions for intelligent electric meter; Anti-theft module (108), described anti-theft module comprises intelligent electric meter package detection unit and Intelligent ammeter box open detection unit, sends alarm when judging ammeter encapsulation or table case opens by Alarm Unit; Data acquisition module (109), for gathering the power information of energy data comprising voltage, electric current, power, frequency, power factor (PF), phasing degree and consumption; Encrypting module (110), for being encrypted power information to be uploaded; Wireless transport module (111), for uploading to data acquisition unit belonging to intelligent electric meter and receiving information from affiliated data acquisition unit by the power information after encryption;
See Fig. 3, it is the structured flowchart of data acquisition unit, telegon in the present invention.Described data acquisition unit (200) comprises: main controller module (201), for the control of the modules to data acquisition unit (200); Wireless transport module (202), for receiving power information that intelligent electric meter sends and being uploaded to telegon and being issued to intelligent electric meter (100) from telegon (300) reception information; Memory module (203), for storing power information, information that telegon (300) issues and key and cryptographic algorithm matching list; Encrypting module (204), for being encrypted the power information received; Described telegon (300) comprises: main controller module (301), for the control of the modules to telegon (200); Wireless transport module (302), for receiving the power information of data acquisition unit transmission and being uploaded to management system and receiving information from management system and be issued to data acquisition unit; Memory module (303), for storing the information that power information issues with administrating system.
See Fig. 4, it is the structured flowchart of management system in the present invention.Described management system (400) comprises: main controller module (401), for the control of the modules to management system (400); Wireless transport module (402), for receiving power information that telegon (300) sends and to photos and sending messages under telegon; Deciphering module (403), for deciphering the enciphered message of reception; Database module (404), for storing information; Monitoring display module (405), for showing the information of all intelligent electric meters (100) in real time; Accounting module (406), for carrying out charging to the power consumption of intelligent electric meter (100); Short message module (407), for sending the relevant short message of electricity charge information to user.
See Fig. 5, it is the process flow diagram of system wireless transmitting network data transmission in the present invention.After described telegon (300) starts, create the wireless network with separate network mark, described network identity is that management system (400) configures, described data acquisition unit (200) obtains the network identity of described telegon (300), transmission adds network request order, send after described telegon (300) receives and adds network request order and add network response command, confirmation is returned to telegon (300) after data acquisition unit (200) receives and adds network response command, unique network address is distributed for data acquisition unit (200) after telegon (300) receives the confirmation information, and the described network address is sent to data acquisition unit (200) and network identity and the network address are sent to management system (400), data acquisition unit (200) upgrades the network address and network identity, management system (400) by the network address corresponding stored of network identity and data acquisition unit (200) in database module (404),
After data acquisition unit (200) adds the network that telegon (300) sets up, the network address of data acquisition unit (200) periodic broadcast self, intelligent electric meter (100) obtains and preserves the network address of described data acquisition unit (200), and the connection request comprising intelligent electric meter (100) identification information is sent to data acquisition unit (200), data acquisition unit (200) is preserved the identification information of intelligent electric meter (100) and is returned successful connection response message to intelligent electric meter (100), the main controller module (101) of intelligent electric meter (100) obtains the power information gathered from data acquisition module (109), power information is sent to encrypting module (110) to be encrypted, ciphering process is: random selecting one group key and cryptographic algorithm (A) in the key that the main controller module (101) of intelligent electric meter (100) stores from memory module (103) and cryptographic algorithm matching list, carries out first time encryption to power information, subsequently, main controller module (101) generates power information frame, this frame comprises the network address of data acquisition unit (200), the power information of mark in matching list of the identification information of intelligent electric meter (100), a group key of selection and cryptographic algorithm (A) and first time encryption, and control wireless transport module (111) and power information frame is uploaded to data acquisition unit (200) belonging to intelligent electric meter (100), after data acquisition unit (200) receives power information frame, by resolving the network address of the data acquisition unit (200) comprised in this frame getting frame, the identification information of intelligent electric meter (100), as judged, this power information frame is that intelligent electric meter belonging to it sends, then preserve power information frame, if not, then abandon this frame, subsequently, random selecting one group key and cryptographic algorithm (B) in the key that the main controller module (201) of data acquisition unit (200) stores from memory module (203) and cryptographic algorithm matching list, second time encryption is carried out to the power information frame preserved, and add a group key of network identity and selection before power information frame after second time encryption and cryptographic algorithm (B) mark in matching list forms new power information frame,
Described telegon (300) is divided into multiple subchannel by with the channel that data acquisition unit (200) carries out communicating, and the plurality of subchannel is distributed to multiple data acquisition unit (200), every sub-channels can be shared by multiple data acquisition unit (200), when a data acquisition unit (200) needs to upload new power information frame, first detect the state distributing to the subchannel of this data acquisition unit (200), if this subchannel is in busy state, then this data acquisition unit (200) enters delayed delivery state and continues to detect sub-channel, if this subchannel is in idle condition, then send data sending request to telegon (300), when data acquisition unit (200) receives after data that telegon (300) returns send and allow message, start to send power information frame, telegon (300) receives after power information frame to data acquisition unit (200) feeding back ACK information, after data transmit time segments terminates, telegon is according to the reception condition of power information frame, generate repeat requests frame, repeat requests frame comprises the network address needing the data acquisition unit retransmitting power information frame and the channel resource retransmitting power information frame, this repeat requests frame broadcasted by telegon, when data acquisition unit receive this repeat requests frame and parse comprise the network address of self in this repeat requests frame time, the re-transmission of power information frame is carried out according to the channel resource distributed, the network identity comprised in the power information frame getting frame received resolved by telegon, and as judged, this power information frame is that data acquisition unit belonging to it (200) sends, then preserve power information frame, if not, then abandon this frame,
Management system (400) intercepts the time slot request that telegon (300) sends, after receiving the time slot request of each telegon, for each telegon distributes data sending time slots, generate and broadcast transmission time slot responses frame, this sending time slots response frame comprises the network identity of telegon and corresponding sending time slots, each telegon (300) is after receiving sending time slots response frame, resolve and obtain sending time slots corresponding to self network identity, when sending time slots arrives, telegon (300) starts the electric information frame of upper transmission after postponing a period of time and terminates to send before sending time slots terminates prerequisite, the main controller module (401) of management system (400) receives the power information frame that wireless transport module (402) sends, resolve to obtain a group key and the mark of cryptographic algorithm in matching list (B) that network identity and data acquisition unit select and control the power information frame of deciphering module (403) to second time encryption and be decrypted, obtain the network address of data acquisition unit (200), the identification information of intelligent electric meter (100), the group key selected and cryptographic algorithm (A) mark in matching list and the power information of first time encryption, and control the power information deciphering of deciphering module (403) to first time encryption, obtain power information.
In sum, intelligent electric meter energy collecting in this system of the present invention is enough measured, detect, alarm, safety encipher, communication, controlling functions, between data acquisition unit and telegon, efficient secure transport mechanism is used between telegon and management system, effectively avoid due to equipment room data transmission conflict, ensure that accuracy and the promptness of system acquisition data, management system can show the running status of all intelligent electric meters in real time, and provide charge information in time for user, the management level of power supply unit are effectively provided, effectively raise the informationization of electrical network, robotization and network management level, there is good application prospect.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a safety long-distance radio meter register charge system, this system comprises: at least one intelligent electric meter (100), at least one data acquisition unit (200), at least one telegon (300), management system (400), wherein:
Described intelligent electric meter (100) comprises: main controller module (101), for the control to intelligent electric meter modules; Power module (102), for providing stable operating voltage, working current for each module of intelligent electric meter; Memory module (103), for storing the power information of the user that intelligent electric meter collects, the running parameter of intelligent electric meter and key and cryptographic algorithm matching list; Display module (104), for showing duty and the power consumption of intelligent electric meter, electricity charge balance amount information to user; Key-press module (105), for the man-machine interaction between user and intelligent electric meter; Fault detection module (106), for detecting the duty of intelligent electric meter modules; Alarm module (107), sends alarm prompt sound when there are abnormal conditions for intelligent electric meter; Anti-theft module (108), described anti-theft module comprises intelligent electric meter package detection unit and Intelligent ammeter box open detection unit, sends alarm when judging ammeter encapsulation or table case opens by Alarm Unit; Data acquisition module (109), for gathering the power information of energy data comprising voltage, electric current, power, frequency, power factor (PF), phasing degree and consumption; Encrypting module (110), for being encrypted power information to be uploaded; Wireless transport module (111), for uploading to data acquisition unit belonging to intelligent electric meter and receiving information from affiliated data acquisition unit by the power information after encryption;
Described data acquisition unit (200) comprises: main controller module (201), for the control of the modules to data acquisition unit (200); Wireless transport module (202), for receiving power information that intelligent electric meter sends and being uploaded to telegon and being issued to intelligent electric meter (100) from telegon (300) reception information; Memory module (203), for storing power information, information that telegon (300) issues and key and cryptographic algorithm matching list; Encrypting module (204), for being encrypted the power information received;
Described telegon (300) comprises: main controller module (301), for the control of the modules to telegon (200); Wireless transport module (302), for receiving the power information of data acquisition unit transmission and being uploaded to management system and receiving information from management system and be issued to data acquisition unit; Memory module (303), for storing the information that power information issues with administrating system;
Described management system (400) comprises: main controller module (401), for the control of the modules to management system (400); Wireless transport module (402), for receiving power information that telegon (300) sends and to photos and sending messages under telegon; Deciphering module (403), for deciphering the enciphered message of reception; Database module (404), for storing information; Monitoring display module (405), for showing the information of all intelligent electric meters (100) in real time; Accounting module (406), for carrying out charging to the power consumption of intelligent electric meter (100); Short message module (407), for sending the relevant short message of electricity charge information to user;
After described telegon (300) starts, create the wireless network with separate network mark, described network identity is that management system (400) configures, described data acquisition unit (200) obtains the network identity of described telegon (300), transmission adds network request order, send after described telegon (300) receives and adds network request order and add network response command, confirmation is returned to telegon (300) after data acquisition unit (200) receives and adds network response command, unique network address is distributed for data acquisition unit (200) after telegon (300) receives the confirmation information, and the described network address is sent to data acquisition unit (200) and network identity and the network address are sent to management system (400), data acquisition unit (200) upgrades the network address and network identity, management system (400) by the network address corresponding stored of network identity and data acquisition unit (200) in database module (404),
After data acquisition unit (200) adds the network that telegon (300) sets up, the network address of data acquisition unit (200) periodic broadcast self, intelligent electric meter (100) obtains and preserves the network address of described data acquisition unit (200), and the connection request comprising intelligent electric meter (100) identification information is sent to data acquisition unit (200), data acquisition unit (200) is preserved the identification information of intelligent electric meter (100) and is returned successful connection response message to intelligent electric meter (100), the main controller module (101) of intelligent electric meter (100) obtains the power information gathered from data acquisition module (109), power information is sent to encrypting module (110) to be encrypted, ciphering process is: random selecting one group key and cryptographic algorithm (A) in the key that the main controller module (101) of intelligent electric meter (100) stores from memory module (103) and cryptographic algorithm matching list, carries out first time encryption to power information, subsequently, main controller module (101) generates power information frame, this frame comprises the network address of data acquisition unit (200), the power information of mark in matching list of the identification information of intelligent electric meter (100), a group key of selection and cryptographic algorithm (A) and first time encryption, and control wireless transport module (111) and power information frame is uploaded to data acquisition unit (200) belonging to intelligent electric meter (100), after data acquisition unit (200) receives power information frame, by resolving the network address of the data acquisition unit (200) comprised in this frame getting frame, the identification information of intelligent electric meter (100), as judged, this power information frame is that intelligent electric meter belonging to it sends, then preserve power information frame, if not, then abandon this frame, subsequently, random selecting one group key and cryptographic algorithm (B) in the key that the main controller module (201) of data acquisition unit (200) stores from memory module (203) and cryptographic algorithm matching list, second time encryption is carried out to the power information frame preserved, and add a group key of network identity and selection before power information frame after second time encryption and cryptographic algorithm (B) mark in matching list forms new power information frame,
Described telegon (300) is divided into multiple subchannel by with the channel that data acquisition unit (200) carries out communicating, and the plurality of subchannel is distributed to multiple data acquisition unit (200), every sub-channels can be shared by multiple data acquisition unit (200), when a data acquisition unit (200) needs to upload new power information frame, first detect the state distributing to the subchannel of this data acquisition unit (200), if this subchannel is in busy state, then this data acquisition unit (200) enters delayed delivery state and continues to detect sub-channel, if this subchannel is in idle condition, then send data sending request to telegon (300), when data acquisition unit (200) receives after data that telegon (300) returns send and allow message, start to send power information frame, telegon (300) receives after power information frame to data acquisition unit (200) feeding back ACK information, after data transmit time segments terminates, telegon is according to the reception condition of power information frame, generate repeat requests frame, repeat requests frame comprises the network address needing the data acquisition unit retransmitting power information frame and the channel resource retransmitting power information frame, this repeat requests frame broadcasted by telegon, when data acquisition unit receive this repeat requests frame and parse comprise the network address of self in this repeat requests frame time, the re-transmission of power information frame is carried out according to the channel resource distributed, the network identity comprised in the power information frame getting frame received resolved by telegon, and as judged, this power information frame is that data acquisition unit belonging to it (200) sends, then preserve power information frame, if not, then abandon this frame,
Management system (400) intercepts the time slot request that telegon (300) sends, after receiving the time slot request of each telegon, for each telegon distributes data sending time slots, generate and broadcast transmission time slot responses frame, this sending time slots response frame comprises the network identity of telegon and corresponding sending time slots, each telegon (300) is after receiving sending time slots response frame, resolve and obtain sending time slots corresponding to self network identity, when sending time slots arrives, telegon (300) starts to send electric information frame after postponing a period of time and terminates to send before sending time slots terminates prerequisite, the main controller module (401) of management system (400) receives the power information frame that wireless transport module (402) sends, resolve to obtain a group key and the mark of cryptographic algorithm in matching list (B) that network identity and data acquisition unit select and control the power information frame of deciphering module (403) to second time encryption and be decrypted, obtain the network address of data acquisition unit (200), the identification information of intelligent electric meter (100), the group key selected and cryptographic algorithm (A) mark in matching list and the power information of first time encryption, and control the power information deciphering of deciphering module (403) to first time encryption, obtain power information, and by network identity, the network address of data acquisition unit (200), the identification information of intelligent electric meter (100) and the power information after deciphering are stored in database module (404), main controller module (401) reads the power information of all users from database module (404), control the power information that monitoring display module (405) shows intelligent electric meter (100) in real time, main controller module (401) calculates the electricity charge of user according to the power information of user, control short message module (407) and send the short message comprising electricity charge information to user.
2. the system as claimed in claim 1, wherein, described intelligent electric meter (100), data acquisition unit (200), telegon (300) adopt flush bonding processor with the main controller module of administrating system (400) (101,201,301,401), have ARM7 kernel.
3. the system as claimed in claim 1, wherein, the intelligent electric meter package detection unit that described anti-theft module (108) comprises adopts pressure transducer, Intelligent ammeter box open detection unit to adopt infrared sensor, when carrying out illegal operation to ammeter encapsulation or table case, pressure transducer or infrared sensor can perception immediately send alarm by Alarm Unit.
4. the system as claimed in claim 1, wherein, described data acquisition unit (200) and telegon (300) send data and advance into dormant state after having gathered data.
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