CN202759467U - Transform station communication system based on MVB - Google Patents
Transform station communication system based on MVB Download PDFInfo
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- CN202759467U CN202759467U CN 201220348376 CN201220348376U CN202759467U CN 202759467 U CN202759467 U CN 202759467U CN 201220348376 CN201220348376 CN 201220348376 CN 201220348376 U CN201220348376 U CN 201220348376U CN 202759467 U CN202759467 U CN 202759467U
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- communication system
- system based
- station communication
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Abstract
The utility model relates to a transform station communication system based on a MVB (Multifunction Vehicle Bus). The transform station communication system based on the MVB includes a main network card, an auxiliary network card, a main control computer, an electrical device and an MVB. The main network card is connected with the MVB through the auxiliary network card. The main control computer is in communicational connection with the main network card. The auxiliary network card is in communicational connection with the electrical device. The transform station communication system based on the MVB has beneficial effects that the transmission speed of the transform station communication system based on the MVB can reach 1.5Mbit/s and the transmission distance can be up to 2km. Thus, the transform station communication system based on the MVB can be used in severe rugged environments of transform stations and the like. Compared with other onsite bus technologies, the transform station communication system based on the MVB has characteristics of high communication rate, good real-time performance, high reliability and high intelligent degree.
Description
Technical field
The utility model relates to areas of information technology, relates in particular to a kind of transformer station's communication system based on the MVB bus.
Background technology
The fieldbus that is applied at present transformer station has CAN, DeviceNet, Delta V, Modubus etc., development along with electric power network technique, intellectuality and fail safe to transformer station are had higher requirement, and this just requires fieldbus to have higher traffic rate, require fieldbus to have more outstanding reliability, real-time and flexibility.And existing fieldbus is difficult to take the satisfied from now on needs of power network development aspect traffic rate and fail safe, wherein the Modubus transmission rate only is 115kbps, and the maximum 1Mbps of the Canbus protocol transmission speed of commonly using now, but transmission rate obviously reduces when distance increases, transmission rate 5kbps only when distance reaches 10kM.The utility model is Multifunction Vehicle Bus(multifunction vehicle bus for this reason, is called for short MVB) technology introduces in the electrical network, substitutes original field bus technique.Compare with other fieldbus, MVB has certain advantage at aspects such as real-time, reliability, manageability, media access control method, addressing system, communication service kinds.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of rapid rate high, the real-time transformer station's communication system based on the MVB bus, and its concrete technical scheme is as follows:
Described transformer station's communication system based on the MVB bus comprises the major network card, from network interface card, main control computer, electric equipment and MVB bus, described major network card be connected by the MVB bus from network interface card, described main control computer and major network cartoon news are connected, and describedly are connected with the electric equipment communication from network interface card.
The further design of described transformer station's communication system based on the MVB bus is, described MVB bus is bilinearity fiber medium bus.
The further design of described transformer station's communication system based on the MVB bus is, the described MVB of the stating bus outside is provided with housing.
The optic fibre fixing device advantage that the utility model provides is as follows:
The transmission speed of described transformer station's communication system based on the MVB bus can reach 1.5Mbit/s, and transmission range can reach 2KM, use that can be under the severe rugged environments such as transformer station.This communication system is compared with other field bus techniques, and communication speed is high, and is real-time, and reliability is high, and intelligent degree is high.
Description of drawings
Form 1 is MVB network interface card function type table.
Fig. 1 is the structural representation of described transformer station's communication system based on the MVB bus.
Fig. 2 is the MVB bus cable.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details:
Such as Fig. 1, the utility model is by the major network card, from network interface card, and main control computer, electric equipment and related software form.Connect electric equipment to the MVB bus from network interface card, use 485 communicate by letter between network interface card and electric equipment, communicate by letter from use MVB between network interface card and MVB bus.Major network links and connects main control computer to the MVB bus, uses 485 communicate by letter between major network card and main control computer, and use MVB communicates by letter between major network card and MVB bus.The main control computer that the major network card is housed is operatively connected to the electric equipment from the equipment by the MVB bus and the various states of equipment is shown to come at main control computer.
Novel each of this use is provided with different addresses from network interface card, and main control computer is by control major network card controlling from network interface card different addresses.
As shown in Table 1, the MVB network interface card is divided and can be fallen into 5 types according to performance, wherein major network card of the present utility model adopts the MVB4 kind equipment with equipment state performance, process data performance, message data performance and bus management performance, adopts from network interface card to have the MVB1 kind equipment that equipment can use confidence state performance, process data performance.
Table 1
| The network interface card type | Performance |
| MVB1 class network interface card | Possess equipment state, process data performance |
| MVB2 class network interface card | Possess equipment state, process data, message data performance |
| MVB3 class network interface card | Possess the attitude of establishing, process data, message data, user-programmable performance |
| MVB4 class network interface card | Possess equipment state, process data, message data, bus manager performance |
| MVB5 class network interface card | Possess equipment state, process data, message data, TCN gate performance |
MVB1 and MVB4 network interface card that the utility model adopts can be realized the conversion of 485 data and MVB message data, are provided with 485 interfaces and MVB principal and subordinate interface.Wherein 485 interfaces connect main control computer or electric equipment, and the MVB principal and subordinate interface connects the MVB bus.
The utility model, MVB bus adopt fiber medium, and by star coupling device remittance abroad, transmission range can reach 2KM, use that can be under the severe rugged environments such as transformer station.This MVB bus adopts the featuring diplonema redundancy technology, has effectively guaranteed the safety and reliability of communication.When a wherein the transmission of data failure of two-wire, the circuit redundancy can guarantee continuous data communication.Wherein 1. 2. connect the MVB main interface among this Fig. 2,4. 5. meet MVB from interface, MVB bus periphery is provided with housing.
Transmission speed of the present utility model can reach 1.5Mbit/s, and transmission range can reach 2KM, use that can be under the severe rugged environments such as transformer station.Message transmission adopts Manchester's code, and message is by prime frame and for responding forming from frame that this prime frame sends.
The specific works flow process of this communication system.The request of the periodic transmitting apparatus state message of main control computer control major network card, the physical address that the MVB gateway receives after the equipment state message request the logical address in the message and gateway compares, if mail returned on ground of incorrect address, then gateway resets, and waits for the equipment state message request that receives host computer transmission next time; If the address meets, then the MVB gateway carries out CRC check to the message data that receives.If mistake appears in CRC check, then gateway resets, and waits for the equipment state message request that receives host computer transmission next time; If mistake does not appear in CRC check, then the MVB gateway will be set self the message data that receives.If the equipment state message request that host computer sends is the source device request, the MVB gateway will be exercised the source device function, send to host computer after the data of the electric equipment that the MVB gateway is received are passed through CRC check; If the equipment state message request that host computer sends is the place device request, the MVB gateway will be exercised the place functions of the equipments, will send to from the data that host computer receives with iting to connect electric equipment.In the process that MVB gateway and host computer communicate, complete if there is the mistakes such as CRC check mistake, transfer of data be overtime or transfer of data, the MVB gateway all can reset and wait for and receive the equipment state message request that next host computer sends.
Claims (3)
1. transformer station's communication system based on the MVB bus, comprise the major network card, from network interface card, main control computer and electric equipment, characterized by further comprising the MVB bus, described major network card be connected by the MVB bus communication from network interface card, described main control computer is connected with the major network cartoon letters, and is described from network interface card and electric equipment communication connection.
2. the transformer station's communication system based on the MVB bus according to claim 1 is characterized in that, described MVB bus is bilinearity fiber medium bus.
3. the transformer station's communication system based on the MVB bus according to claim 2 is characterized in that, described MVB bus
The outside is provided with housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348376 CN202759467U (en) | 2012-07-18 | 2012-07-18 | Transform station communication system based on MVB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348376 CN202759467U (en) | 2012-07-18 | 2012-07-18 | Transform station communication system based on MVB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202759467U true CN202759467U (en) | 2013-02-27 |
Family
ID=47738626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220348376 Expired - Fee Related CN202759467U (en) | 2012-07-18 | 2012-07-18 | Transform station communication system based on MVB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202759467U (en) |
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2012
- 2012-07-18 CN CN 201220348376 patent/CN202759467U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130227 Termination date: 20150718 |
|
| EXPY | Termination of patent right or utility model |