CN203086503U

CN203086503U - FlexRay bus communication daughter card based on PCI interface

Info

Publication number: CN203086503U
Application number: CN 201320098731
Authority: CN
Inventors: 黄运生; 吴国良; 孙雨; 段鑫
Original assignee: HU NAN UNSEAL TIMES ELECTRONICS INFORMATION TECHNOLOGY CO LTD
Current assignee: HU NAN UNSEAL TIMES ELECTRONICS INFORMATION TECHNOLOGY CO LTD
Priority date: 2013-03-05
Filing date: 2013-03-05
Publication date: 2013-07-24
Anticipated expiration: 2023-03-05

Abstract

The utility model discloses a FlexRay bus communication daughter card based on a PCI interface, and the daughter card comprises a PCI bus interface module, a main controller module, an isolation protection module and a FlexRay message transceiving module, wherein one end of the PCI bus interface module is connected with a PCI bus; the other end of the PCI bus interface module is connected with the main controller module; the main controller module, the isolation protection module and the FlexRay message transceiving module are serially connected in sequence; the FlexRay message transceiving module is connected with a FlexRay bus, and sends a signal on the FlexRay bus into the main controller module through the isolation protection module; and the data is analyzed, processed and stored in the main controller module, sent to the PCI bus interface module in the form of parallel port data, converted into a 32-bit high-speed PCI bus signal by the PCI bus interface module, and enters the PCI bus. According to the FlexRay bus communication daughter card based on the PCI interface, traditional bus data acquisition methods are improved, the high-speed and real time acquisition and recording of mass data of a FlexRay network are realized, and foundation is laid for further analysis of the bus data and test.

Description

A kind of FlexRay bus communication subcard based on pci interface

Technical field

The utility model relates to the network communications technology field, particularly a kind of FlexRay bus communication subcard based on pci interface.

Background technology

The of future generation vehicle-mounted bus standard that FlexRay is a kind of twin-channel high speed, have fault-tolerant ability, combine based on Time Triggered and Event triggered, has application fields, as substituting the CAN bus, be used as " data backbone network ", be used for dcs, be used for system's (line control system) of high security requirement.

FlexRay communication protocol has been done a large amount of research-and-development activitys abroad.2002, the FlexRay bus began to be used for line traffic control (x-by-wire) system feasibility and identifies.2007, BMW 5 was that the Electronic Control shock absorber system of trendy SUV has adopted FlexRay first, be the vehicle of first equipment FlexRay communication system.Simultaneously, FlexRay communication protocol is progressively full-fledged, some semiconductor manufacturers have made the line control system model of communicating by letter based on FlexRay with research institution, technical agreement is reached at Freescale and grace intelligence Pu, common exploitation FlexRay communication chip makes the final ripe time of FlexRay technology shift to an earlier date significantly by technology is shared on the basis of existing procucts.In addition, semiconductor giants such as Infineon, Rui Sa, Fujitsu also should have the solution of FlexRay communication controler to put into effect mutually.

The trend that FlexRay advances is at home also forming.Also begin its protocol specification is studied with interior colleges and universities and scientific research institution, some papers that landed the supervention table on the basis of understanding standard also begin to build the FlexRay actual communication systems.Adopt certain technological means, the FlexRay bus communication message in real-time, complete collection, the record controls network is understood the Control on Communication flow process by message analysis, becomes a vital task in product development and the industrial control field.

There has been the special-purpose integrated equipment of a spot of bus analysis at present abroad on the market, but cost an arm and a leg mostly, technical know-how is stronger, be difficult to carry out flexible secondary development, existing product adopts modular converter that the FlexRay bus message is converted to the RS232 message more, by the RS232 interface message is issued the PC work station again.By the message of conversion, its real-time has been subjected to the restriction of conversion speed and RS232 interface rate, can't realize at a high speed, in real time, the collection of magnanimity FlexRay bus message.

The utility model content

In order to solve the problems of the technologies described above, the utility model provides a kind of and can realize at a high speed, in real time, the FlexRay bus communication subcard based on pci interface of mass data collection and record.

The technical scheme that the utility model addresses the above problem is: a kind of FlexRay bus communication subcard based on pci interface; it comprises pci bus interface module, main controller module, insulation blocking module and FlexRay information receiving and transmitting module; one end of described pci bus interface module connects pci bus; the other end is connected with the master control module; described master control module, insulation blocking module, FlexRay information receiving and transmitting module are connected in series successively, and described FlexRay information receiving and transmitting module is connected with the FlexRay bus.

Further, above-mentioned FlexRay information receiving and transmitting module comprises FlexRay bus transmission circuit and bus filter protective circuit.

Further, the master chip of above-mentioned FlexRay bus transmission circuit is TJA1080A.

Further, the main control chip of above-mentioned main controller module is MC9S12XF512.

Further, the chip of above-mentioned pci bus interface module employing is CH365.

The beneficial effects of the utility model are:

1, the utility model can carry out analytic record to FlexRay network-bus data, as long as equipment is inserted the collecting work that just can finish data in the FlexRay standard communication network;

2, the utility model has improved the method for traditional collection bus data, realized the FlexRay network high-speed, in real time, collection and the record of mass data, lay the foundation for further analyzing bus data and test.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described.

As shown in Figure 1; comprise main controller module among Fig. 1; the pci bus interface module; the insulation blocking module; FlexRay information receiving and transmitting module and power module; power module is a main controller module; the insulation blocking module; the pci interface module provides the stable power signal; the pci bus interface module links to each other with main controller module; the insulation blocking module connects main controller module and FlexRay information receiving and transmitting module; in the time of isolation signals power supply is isolated; provide power supply for FlexRay information receiving and transmitting module simultaneously; when occurring high pressure or big current interference on the bus; can protect master controller and PC work station not to be subjected to the impact of bus signals; FlexRay information receiving and transmitting module comprises FlexRay bus transceiver circuit and bus filter protective circuit; the main control chip of above-mentioned main controller module is MC9S12XF512; the device that above-mentioned insulation blocking module adopts is ADuM5402; the master chip of the bus transmission circuit in the above-mentioned FlexRay information receiving and transmitting module is TJA1080A, and the chip that above-mentioned pci interface module adopts is CH365.

Operation principle of the present utility model is as follows: FlexRay information receiving and transmitting module is sent into main controller module with the signal on the FlexRay bus after the insulation blocking module; data are resolved, handle, are stored in main controller module inside; form with the parallel port data sends to the pci bus interface module at last; be 32 high-speed PCI bus signals through the pci bus interface module converts again, send into pci bus.

The utility model can carry out analytic record to FlexRay network-bus data, as long as equipment is inserted the collecting work that just can finish data in the FlexRay standard communication network, improved the method for the traditional data conversion of gathering bus data, realized the FlexRay network high-speed, in real time, collection and the record of mass data, lay the foundation for further analyzing bus data and test.

Claims

1. FlexRay bus communication subcard based on pci interface; it is characterized in that: comprise pci bus interface module, main controller module, insulation blocking module and FlexRay information receiving and transmitting module; one end of described pci bus interface module connects pci bus; the other end is connected with the master control module; described master control module, insulation blocking module, FlexRay information receiving and transmitting module are connected in series successively, and described FlexRay information receiving and transmitting module is connected with the FlexRay bus.

2. a kind of FlexRay bus communication subcard based on pci interface as claimed in claim 1, it is characterized in that: described FlexRay information receiving and transmitting module comprises FlexRay bus transmission circuit and bus filter protective circuit.

3. a kind of FlexRay bus communication subcard based on pci interface as claimed in claim 2, it is characterized in that: the master chip of described FlexRay bus transmission circuit is TJA1080A.

4. a kind of FlexRay bus communication subcard based on pci interface as claimed in claim 1, it is characterized in that: the main control chip of described main controller module is MC9S12XF512.

5. a kind of FlexRay bus communication subcard based on pci interface as claimed in claim 1 is characterized in that: the chip that described pci bus interface module adopts is CH365.