CN109672468A - A kind of HPLC relay system and communication means based on wireless communication technique - Google Patents
A kind of HPLC relay system and communication means based on wireless communication technique Download PDFInfo
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- CN109672468A CN109672468A CN201811478233.7A CN201811478233A CN109672468A CN 109672468 A CN109672468 A CN 109672468A CN 201811478233 A CN201811478233 A CN 201811478233A CN 109672468 A CN109672468 A CN 109672468A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15557—Selecting relay station operation mode, e.g. between amplify and forward mode, decode and forward mode or FDD - and TDD mode
Abstract
The present invention discloses a kind of HPLC relay system based on wireless communication technique, it is characterised by comprising: a main CCO, the function of making have to the networking certification of isolated island ammeter equipment from CCO with the synchronization from CCO ammeter white list is realized on the basis of compatible ammeter management function；An at least wireless relay apparatus flanks the message receiving main CCO and sending from carrier wave, by wireless forwarding to corresponding from CCO, and receives from the message of CCO from wireless side through carrier wave feedback to main CCO, the route that carrier wave cannot communicate is passed through and is wirelessly relayed；At least one, from CCO, corresponds from CCO and wireless relay apparatus, with isolated island ammeter equipment network, handles the order for the main CCO that wireless relay apparatus transfers, completes copy reading of the main CCO to all ammeters under the network.The present invention improves the meter reading success rate of high speed HPLC while reducing cost, can be good at overcoming current high speed HPLC there are the drawbacks of, market use value with higher.
Description
Technical field
The present invention relates to high speed carrier (HPLC) field of communication technology, it is related to a kind of relay system and communication means.
Background technique
In actual use, influencing due to environment, interference etc. can be in the presence of the ammeter of a part for high speed carrier at present
It can not be communicated with CCO (host node carrier communication equipment, be mounted on concentrator), be exactly so-called isolated island equipment.This is reality
A kind of failure that platform area deployment implementation process is often encountered.
Existing major part producer will use two kinds than more typical solution；First, increase a collection at isolated island equipment
Middle device makes to independently form an area Ge Tai, in this way the result is that a platform differentiation originally is segmented into multiple unit-area managements, although may be implemented
Ammeter is copied and accepted, but this method needs to coordinate each department such as main website, concentrator and scene and could complete, and especially changes to the area Jiu Tai
The implementation for making situation is coordinated than relatively difficult to achieve.Second method be all ammeter equipment STA (from node carrier communication equipment,
It is mounted on ammeter) module is using bimodulus (HPLC+ is wireless) scheme, in the unknown undesirable situation with the presence or absence of communication, all
Cost is significantly greatly increased using the ammeter deployment of bimodulus scheme；Simultaneously due to all ammeter equipment STA have the function of wireless telecommunications
It causes wireless communication to interact, causes final copy reading ineffective, be less useful for the maintenance in later period.
Therefore, for HPLC scheme there are the drawbacks of, need at present it is a kind of low cost and be easy to site operation maintenance nothing
Line trunking method.
Summary of the invention
It is an object of the invention to overcome prior art defect, provide a kind of low cost, it is easy to install and maintenance it is wireless in
After system and communication means, the communication issue of isolated island equipment and CCO is solved.
The present invention specifically adopts the following technical scheme that
A kind of HPLC relay system based on wireless communication technique, characterized by comprising:
One main CCO, realization makes to have from CCO with the synchronization from CCO ammeter white list on the basis of being compatible with ammeter management function
There is the function to the networking certification of isolated island ammeter equipment；
An at least wireless relay apparatus flanks the message receiving main CCO and sending from carrier wave, by wireless forwarding to it is corresponding from
CCO, and receive from the message of CCO through carrier wave feedback from wireless side to main CCO, the route that carrier wave cannot be communicated passes through wireless
It is relayed；
At least one, from CCO, corresponds from CCO and wireless relay apparatus, with isolated island ammeter equipment network, handles in wireless
After the order for the main CCO that equipment transfers, copy reading of the main CCO to all ammeters under the network is completed.
A kind of HPLC relay communication method based on wireless communication technique, it is characterised in that include the following steps:
Step 1: main CCO receives the order of concentrator, and it is corresponding that wireless relay apparatus in present networks is found in broadcast or unicast
Network TEI generates standard broadband carrier wave and uses layer message, is sent to wireless relay apparatus；
Step 2: wireless relay apparatus receives the message that main CCO is sent, and obtains corresponding transmission types and mesh from network layer
Address, generated according to extended wireless relay forwarding agreement and need the air message that forwards, be forwarded to from CCO；
Step 3: wireless forwarding message is received from CCO, parsing obtains the standard broadband carrier wave message content that main CCO is sent；
If broadcasting packet, then from CCO directly by the network where message broadcasting to itself；If unicast message, then from message
In parse destination address, according to this address inquire obtain present networks TEI, message is unicast to the STA of corresponding destination address；
Step 4: isolated island ammeter equipment receives message and handles completion, and then response message is sent to from CCO；
Step 5: it from the response message of CCO reception isolated island ammeter, after the validity for judging message, generates corresponding wireless
It E-Packets and is sent to wireless relay apparatus；
Step 6: wireless relay apparatus parses the message sent from CCO, and the bandwidth carrier fortune of standard is obtained from the message
Main CCO is forwarded to layer message；
Step 7: main CCO handles response message and reports concentrator.
HPLC relay system and its communication means provided by the invention based on wireless communication technique, not only changes the area Jiu Tai
Seamless interfacing is made, while not needing all modules during platform area disposes and being equipped with radio function, it is only necessary to a wireless relay
As soon as equipment and the slave CCO for having radio function, can be efficiently completed the function of wireless relay, mention while reducing cost
The high meter reading success rate of high speed HPLC, can be good at overcoming current high speed HPLC there are the drawbacks of, market with higher
Use value.
Detailed description of the invention
Fig. 1 is the field failure schematic diagram of one embodiment of the invention.
Fig. 2 is the wireless relay functional framework figure of one embodiment of the invention.
Fig. 3 is the wireless relay process frame diagram of one embodiment of the invention.
Fig. 4 is ammeter white list synchrodata frame structure.
Fig. 5 is ammeter white list DL synchronization message format.
Fig. 6 is the format of data field in Fig. 5.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying case, the present invention is described in further detail.
Embodiment one
Field failure situation explanation:
Under normal high speed carrier stable case, main CCO can by HPLC and the lower four ammeter STA-I in this area,
STA-II, STA-1 and STA-2 communication, complete the acquisition to data such as the electric fluxs of all ammeters.It is now assumed that there are two ammeters
STA1, STA2 cannot be communicated by high speed HPLC with main CCO, as shown in Figure 1, forming so-called isolated island ammeter equipment, this situation is just
It is the application scenarios of the present embodiment, needs to complete to communicate with main CCO by way of relaying.
As shown in Fig. 2, the present invention provides a kind of HPLC relay system based on wireless communication technique, capital equipment includes:
One main CCO, one are from CCO and a wireless relay apparatus.Each functions of the equipments are described below:
Main CCO: in order to allow the use of user's seamless interfacing isolated island equipment, keeping being basically unchanged with consistent function originally,
Compatible existing all ammeter management functions of CCO；Main CCO sends out all white lists (i.e. all electric meter address in platform area where the CCO)
It send and is synchronized to from CCO, carry out networking certification (not in white list from isolated island ammeter equipment of the CCO to this TV station area when for networking
Ammeter request networking response does not allow to network)；Other meter reading processes, to search surface low journey function constant.
Wireless relay apparatus: playing the forwarding capability formed a connecting link, and the route that high speed carrier cannot be communicated passes through wireless
It is relayed.The message for receiving main CCO transmission is flanked from carrier wave by wireless forwarding to from CCO, is equally received from wireless side from CCO
Message by carrier wave feedback to main CCO；It functionally realizes and the route that can not be communicated is relayed.
From CCO: the ammeter equipment for being about to isolated island certainly completes networking with from CCO, but not direct logical with concentrator from CCO
News, but the order such as handle the meter reading process of corresponding main CCO, search surface low journey, it completes main CCO and all ammeters under the network is copied
It reads.
Wireless relay apparatus and from CCO correspond.One only one main CCO of concentrator can have multipair wireless
Relaying and from CCO.Wireless relay apparatus can use existing STA and increase radio function realization, can use from CCO existing
CCO increases radio function and realizes.Increasing radio function for equipment is to be easy to implement for those skilled in the art, is not belonging to this
Invent the scope discussed.
Embodiment two
Main CCO copy reading process based on relay system is as shown in Figure 3:
Step 1: main CCO receives concentrator and carries out calling survey electricity, voltage together to the ammeter STA-1 or STA-2 in script isolated island
Order is supported with all ammeters such as electric current；If main CCO is using broadcast communication modes then using broadcast TEI；If unicast communicates
The corresponding network TEI of wireless relay apparatus in present networks is then found according to the address of ammeter STA-1 or STA-2 in isolated island, it is raw
Layer message is used at standard broadband carrier wave, is sent to corresponding wireless relay apparatus.CCO, which has, searches table function, to not existing originally
The isolated island equipment of line is broadcasted when main CCO copy reading, and then trunking will forward, and can also be broadcasted from CCO, it is final only
There is isolated island equipment to carry out response, main CCO will know that trunking, from the relationship of CCO and isolated island ammeter and preserve, when
When unicast message is to isolated island ammeter, main CCO can find the TEI of trunking according to ammeter destination address.
Step 2: wireless relay apparatus receives the message that main CCO is sent, and obtains corresponding transmission types (unicast from network layer
Or broadcast) and destination address, the air message for needing to forward is generated according to extended wireless relay forwarding agreement, is forwarded to from CCO.
Step 3: receiving wireless forwarding message from CCO, parsing obtains in the standard broadband carrier wave message that main CCO is sent
Hold；If broadcasting packet (i.e. destination address is the full address FF), then from CCO directly by the net where message broadcasting to itself
Network；If unicast message (i.e. destination address is all zeros address), then parsing destination address from message, is looked into according to this address
The TEI for obtaining present networks is ask, message is unicast to the STA of corresponding destination address.It does not handle the time-out of the message from CCO, retransmit
Mechanism is uniformly processed by main CCO.
Step 4: ammeter STA1 or ammeter STA2 receives message and handles completion, and then response message is sent to from CCO；
Step 5: the response for receiving ammeter STA1 or ammeter STA2 from CCO reports message, judges the validity of message.Due to
Uplink message must need to be forwarded to main CCO, so not needing to find purpose TEI；Generate corresponding wireless forwarding message hair
It send to wireless relay apparatus.
Step 6: wireless relay apparatus parses the message sent from CCO, and the bandwidth carrier fortune of standard is obtained from the message
It is not needed searching purpose TEI also due to uplink message must need to be forwarded to main CCO with layer message and is forwarded directly to lead
CCO.Wireless relay apparatus just completes the relay forwarding of the message reported to response.
Step 7: the main received response message of CCO is the standard broadband carrier wave that wireless relay apparatus is forwarded by high speed carrier
It is consistent with the message of other non-trunking ammeter STA responses is received with layer message, therefore be also consistent to the processing of message
's.Main CCO has handled response message and has reported concentrator, completes primary complete communication flow.
When ammeter STA1 or ammeter STA2, which generates event, to be needed to report to main CCO, active reporting process:
Step 1: receiving the active reporting message of ammeter STA1 or ammeter STA2 from CCO, judge the validity of message.Due to
Uplink message must need to be forwarded to main CCO, so not needing to find target TEI；Generate corresponding wireless forwarding message hair
It send to wireless relay apparatus.
Step 2: wireless relay apparatus parses the message sent from CCO, and the bandwidth carrier fortune of standard is obtained from the message
Message is reported with layer event, also due to uplink message must need to be forwarded to main CCO, it is direct not need searching target TEI
It is forwarded to main CCO. wireless relay apparatus and just completes relay forwarding to the message of active reporting.
Step 3: main CCO active reporting message is all the standard broadband carrier wave that wireless relay apparatus is forwarded by high speed carrier
It is consistent with the message of other non-trunking ammeter STA active reportings is received with layer message, therefore be also to the processing of message
It is consistent.Main CCO has handled the message of active reporting and has reported concentrator, completes an active reporting communication flow.
It summarizes, by carrier communication between main CCO and wireless relay apparatus, completely without the ammeter STA for understanding copy reading
It is to be forwarded by wireless relay, the details of bottom wireless relay is thus shielded to main CCO, greatly improves the simultaneous of main CCO
Capacitive.It additionally while isolated island equipment needs to reformulate another independent network, but from CCO is communicated with main CCO,
The two still falls within same unit-area management；Only need a wireless relay apparatus and a band radio function from CCO equipment simultaneously
It can realize the relaying copy reading to all isolated island ammeters, opposite bimodulus ammeter STA scheme, and great save the cost.
If Fig. 2 builds testboard area, present system and its communication means are tested:
STA-I and STA-II and main CCO is communicated by high speed carrier level-one；
STA-1 and STA-2 and main CCO is by wireless relay, and level-one communicates from CCO network；
Test result such as table 1
1 ammeter copy reading test result of table
| Ammeter STA | Copy reading data item | Copy reading number | Number of success | Average delay |
| STA-I | 00010000 (electric flux) | 100 | 100 | 673ms |
| STA-II | 00010000 (electric flux) | 100 | 100 | 660ms |
| STA-1 | 00010000 (electric flux) | 100 | 99 | 1128ms |
| STA-2 | 00010000 (electric flux) | 100 | 100 | 1002ms |
In terms of the result of test, due to the influence of the factors such as wireless rate, the speed in speed not as good as high speed carrier is copied and accepted
Degree, but can also complete the copy reading to all ammeters.Relative to low cost, easy the advantages that disposing and is easy to maintain, this method is not lose
For a good selection.
Extended Protocol of the invention is illustrated below:
One, spread radio communication agreement
Wireless forwarding message format is as follows:
1 wireless forwarding message format of table
1, destination address
Ammeter mailing address,
The full address FF: broadcast address；From CCO according to the address indicate by data content broadcast in message into present networks institute
There is ammeter equipment
All zeros address: the not specified address of unicast, by from CCO, voluntarily analytic message obtains destination address；
Binary-coded decimal address: address is specified in unicast, be may specify and is sent to from CCO or other specified ammeter equipment, for debugging or
Extension function in the future.
2, control domain
Definition has framing function, is end frame if single frame transmission；Support 0-15 framing.
Lower behavior wireless relay apparatus is sent to from CCO, and uplink is opposite.
| Value | Meaning |
| BIT7 | Direction position 0: downlink 1: uplink |
| BIT5-6 | Retain |
| BIT4 | Frame type 0: subsequent frame 1: end frame |
| BIT0-3 | Framing serial number |
3, function code
The effect of function code is to define message function
| Value | Meaning |
| BIT4-7 | Test serial number |
| BIT0-3 | Function code |
Function code 0: response 1: forwarding 2: setting 3-15: retain；
Response message: content domain is 1 byte, 00 success of reception state；Non-zero failure；
It E-Packets: the forwarding of bandwidth carrier application layer service message.
Message is set: retaining and extends in the future, realizes and relevant parameter remotely is set to from CCO
4, data content
I.e. the bandwidth carrier of standard uses layer message.
5, examine and
Terminate since frame to data content domain and verification, guarantees that this frame transmission process is correct.
Two, main CCO and from white list synchronous protocol between CCO:
It is synchronous to extend bandwidth carrier application layer protocol (message ID is 0x0090) progress white list, data frame structure such as Fig. 4
It is shown.
1. downlink message format is as shown in Figure 5.Wherein the format in the domain data (DATA) is as shown in Figure 6.
White list sync message format such as the following table 2:
2 white list sync message format of table
Protocol version:
Protocol version is the field of 6 bits, considers that compatibility, this version value are fixed as 1.
Heading length:
Heading length is the field of 6 bits, is given by sender, description heading (except data (DATA) length is outside one's consideration)
Length finds the position of data (DATA) for recipient from heading offset heading length.
Frame type:
Frame type is the field of 2 bits.Downlink frame type indicates present frame type, is given by main CCO, from CCO according to frame
Type executes different operations.
| Frame type | Meaning |
| 00 | Synchronous start frame |
| 01 | Synchronous intermediate frame |
| 10 | Synchronous end frame |
Uplink frame type indicates response result, and response result accounts for 1 bit field, from the CCO response frame processing result.
| Response result | Meaning |
| 00 | Success |
| 01 | Failure |
Electric energy meter quantity:
Electric energy meter quantity is the field of 8 bits, indicates STA table quantity.
Device address:
Device address is the field of 48 bits, is indicated from the address of CCO
Test serial number:
Test serial number is the field of 8 bits, keeps one from the test serial number in the downlink message that CCO response and CCO are sent
It causes.
Electric energy table address:
Electric energy table address is the field of 48 bits, refers to that table address, format are binary-coded decimal.
Protocol type:
Protocol type is the field of 4 bits, refers to the protocol type of electric energy meter, and specific value is as follows.
| Regularia offset | Meaning |
| 0 | Transparent transmission |
| 1 | DL/T645—1997 |
| 2 | DL/T645—2007 |
| 3 | DLT698.45 |
| 4-15 | Retain |
2. uplink message format is consistent with downlink, meta-data location.Response result accounts for 1 bit in the frame type of message format
Field, other reservations.
The principle of main CCO active synchronization, specifies address mode to communicate using unicast；Including three kinds of frame types, start frame table
Understand that list synchronizes to start, receive after CCO response, start the transmission of intermediate frame, until last frame is the hair of end frame
It send, receives end frame from CCO and think the same the end of the step of white list, it is inconsistent white with itself to the white list received from CCO
List synchronizes update.
Claims (6)
1. a kind of HPLC relay system based on wireless communication technique, characterized by comprising:
One main CCO realizes with the synchronization from CCO ammeter white list on the basis of compatible ammeter management function, makes to have from CCO pair
The function of isolated island ammeter equipment networking certification；
An at least wireless relay apparatus flanks the message receiving main CCO and sending from carrier wave, by wireless forwarding to corresponding from CCO,
And receive from the message of CCO through carrier wave feedback from wireless side to main CCO, the route that carrier wave cannot be communicated is by wirelessly carrying out
Relaying；
At least one, from CCO, corresponds from CCO and wireless relay apparatus, with isolated island ammeter equipment network, handles wireless relay and sets
The order of the standby main CCO transferred, completes copy reading of the main CCO to all ammeters under the network.
2. a kind of HPLC relay communication method based on wireless communication technique, it is characterised in that include the following steps:
Step 1: main CCO receives the order of concentrator, and the corresponding network of wireless relay apparatus in present networks is found in broadcast or unicast
TEI generates standard broadband carrier wave and uses layer message, is sent to wireless relay apparatus；
Step 2: wireless relay apparatus receives the message that main CCO is sent, and obtains corresponding transmission types and destination from network layer
Location generates the air message for needing to forward according to extended wireless relay forwarding agreement, is forwarded to from CCO；
Step 3: wireless forwarding message is received from CCO, parsing obtains the standard broadband carrier wave message content that main CCO is sent；If
Broadcasting packet, then from CCO directly by the network where message broadcasting to itself；If unicast message, then being solved from message
Destination address is precipitated, the TEI for obtaining present networks is inquired according to this address, message is unicast to the STA of corresponding destination address；
Step 4: isolated island ammeter equipment receives message and handles completion, and then response message is sent to from CCO；
Step 5: from the response message of CCO reception isolated island ammeter, after the validity for judging message, corresponding wireless forwarding is generated
Message is sent to wireless relay apparatus；
Step 6: wireless relay apparatus parses the message sent from CCO, and the bandwidth carrier that standard is obtained from the message uses layer
Message is forwarded to main CCO；
Step 7: main CCO handles response message and reports concentrator.
3. relay communication method as claimed in claim 2, it is characterised in that the time-out of message, retransmission mechanism are unified by main CCO
Processing.
4. relay communication method as claimed in claim 2, it is characterised in that wireless forwarding message format is as follows:
Wherein, destination address indicates the ammeter mailing address with transmission types；Control domain is for defining framing function and uplink and downlink
Direction；Function code is for defining message function, including response, forwarding；Data content, that is, standard bandwidth carrier uses layer message；
It examines and for terminate since frame to data content domain and verification, guarantees that frame transmission process is correct.
5. relay communication method as claimed in claim 2, it is characterised in that need to report to master when isolated island ammeter generates event
When CCO, active reporting process is as follows:
Step 1: from the active reporting message of CCO reception ammeter, after the validity for judging message, corresponding wireless forwarding is generated
Message is sent to wireless relay apparatus；
Step 2: wireless relay apparatus parses the message sent from CCO, and the bandwidth carrier that standard is obtained from the message uses layer
Message is forwarded to main CCO；
Step 3: main CCO handles active reporting message and reports concentrator.
6. relay communication method as claimed in claim 2, it is characterised in that main CCO and synchronous from ammeter white list between CCO
Message format is as follows:
Wherein, frame type carries out corresponding operation for informing from the currently transmitted frame type of CCO；Electric energy meter quantity indicates that this is same
The ammeter white list quantity of step；Device address is to indicate that current message needs not needing forwarding ammeter from CCO processing from the address CCO
Equipment；Electric energy table address is synchronous white list；Protocol type indication electric meter communicates the specification used.
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