CN104965469A - CPCI bus standard-based multi-function acquisition control device - Google Patents
CPCI bus standard-based multi-function acquisition control device Download PDFInfo
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- CN104965469A CN104965469A CN201510399179.7A CN201510399179A CN104965469A CN 104965469 A CN104965469 A CN 104965469A CN 201510399179 A CN201510399179 A CN 201510399179A CN 104965469 A CN104965469 A CN 104965469A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25314—Modular structure, modules
Abstract
The invention discloses a CPCI bus standard-based multi-function acquisition control device. The CPCI bus standard-based multi-function acquisition control device includes an industrial computer CPCI bus standard-based acquisition control card, an SSI signals acquisition card which can complete synchronous acquisition of six-path synchronous serial interface signals, and a DAC data processing card which can complete 16-path digital-to-analog conversion; the acquisition control card includes a CPCI bus connection module, a power source module, a PCI bridging chip module, an FPGA module, a general interface module and an external interface module; the SSI signal acquisition card includes six SSI modules, an FPGA module and a general interface; the DAC data processing card includes four DAC modules, a power amplification circuit, an FPGA module and a general interface; and the SSI signal acquisition card and the DAC data processing card are installed on the acquisition control card through the general interfaces, so that the SSI signal acquisition card and the DAC data processing card can communicate with the FPGA of the acquisition control card and be connected with the external interface of the acquisition control card. The whole device has excellent extendibility and can satisfy requirements for multi-functional data processing of industrial control sites.
Description
Technical field
The present invention relates to the collection of industrial measurement and control FIELD Data and control device, particularly relate to a kind of multi-functional acquisition control device based on cpci bus standard.
Background technology
Under the promotion of the microelectronics in fast development, computing machine, the communication technology, computer measurement and control system has become the main flow Measurement and Control System of current Industry Control.Especially in the field such as integrated production of chemical industry, metallurgy, electric power, automated machine tool, industrial products, all have a wide range of applications, importance in the industrial production highlights further.
In industry measurement and control system, industrial computer often exports numeral or simulating signal as requested to peripherals terminal, thus controls the actuator in controlling unit, such as direct current generator etc.; Also need the signal meeting certain standard from sensor collection simultaneously, feed back to industrial computer after treatment, thus help industrial computer to carry out monitor and forecast to whole TT&C system.At present except traditional Peripheral Component Interconnect standard (Peripheral Component Interconnection is called for short PCI) bus interface, a kind of novel bus standard grows up on this basis, i.e. cpci bus standard, being meant to " compact PCI " of Chinese, it is the pci system of current first employing passive bus negative structural, be pci bus electrically and the industry of software standard and European card assemble the combination of standard, be a kind of industrial computer bus standard up-to-date now.
At present also exist that speed is slow, precision is low based on the acquisition control device of cpci bus standard, output signal type and the defect such as collection fan-out capability is single, functional expansionary is poor, therefore, design a kind of multi-functional acquisition control device based on cpci bus standard, TT&C system can be made to possess multiple collection and controlling functions simultaneously, and the acquisition rate of whole device is fast, output accuracy is high, functional expansionary is strong, corresponding functional module board is designed according to different needs, do not need to redesign whole acquisition and control card, greatly reduce R&D costs.These all have positive facilitation to the development of industrial control automation.
Summary of the invention
In order to realize the on-the-spot demand to different acquisition controlling functions of Industry Control, the object of this invention is to provide a kind of multi-functional acquisition control device based on cpci bus standard, complete the acquisition process of the SSI coded signal of sensor simultaneously and the functions such as the controlled output of DAC are carried out to the digital quantity instruction that industrial control computer sends.
The object of the invention is to be achieved through the following technical solutions: a kind of multi-functional acquisition control device based on cpci bus standard, it is characterized in that: comprise acquisition and control card, SSI data acquisition card and DAC data processing card, acquisition and control card is provided with external interface, cpci bus link block, common interface module, the FPGA module of acquisition and control card, PCI bridging chip module and power module; SSI data acquisition card is provided with the general-purpose interface of FPGA module, six SSI modules, SSI data acquisition card; DAC data processing card is provided with the general-purpose interface of FPGA module, four DAC module, DAC data processing card;
Acquisition and control card is connected with peripherals by external interface, can realize being connected with the sensor of periphery or actuator; Acquisition and control card is connected with industrial computer backboard slot by cpci bus link block, and realize the stabilized communication with computing machine, cpci bus link block meets cpci bus agreement; On acquisition and control card, external interface is connected with common interface module; The common interface module of described acquisition and control card has two identical slot regions, can be connected with two pieces of function daughter boards simultaneously, each slot region is made up of 40 parallel pin male slots of two rows, and two rows of sockets in each slot region are connected with the FPGA module of Peripheral Interface and acquisition and control card respectively; Described PCI bridging chip module is connected with the FPGA module of acquisition and control card with cpci bus link block respectively;
The general-purpose interface of described SSI data acquisition card is the parallel 40 pin female slots of two rows, and SSI data acquisition card is plugged on the common interface module of acquisition and control card by the general-purpose interface of SSI data acquisition card.On SSI data acquisition card, the FPGA module of SSI data acquisition card respectively with 6 SSI model calling, a rows of sockets of the general-purpose interface of SSI data acquisition card respectively with 6 SSI model calling, another rows of sockets is connected with the FPGA module of SSI data acquisition card;
The general-purpose interface of described DAC data processing card is the parallel 40 pin female slots of two rows, and the common interface module that DAC data processing card is plugged on acquisition and control card by the general-purpose interface of DAC data processing card connects.On DAC data processing card, the FPGA module of DAC data processing card is connected with 4 DAC module respectively, and a rows of sockets of the general-purpose interface of DAC data processing card is connected with 4 DAC module respectively, and another rows of sockets is connected with the FPGA module of DAC data processing card.
Its input voltage of described power module is divided into three kinds, + 5V ,+12V ,-12V respectively, thered is provided by industrial computer backboard, output provides direct current+3.3V, + 2.5V and+1.2V ,+3.3V provide reference voltage for FPGA, and+2.5V provides boosting voltage for FPGA, + 1.2V provides inner core voltage for FPGA, and+5V ,+12V and-12V voltage also will output to external interface and common interface module simultaneously.
The external interface of described acquisition and control card is 90 degree of female interfaces of SCSI 68 pin, can be connected, such as absolute value encoder, motor etc. by 90 degree of male interfaces of SCSI 68 pin with peripherals.
The present invention is compared with background technology, the beneficial effect had is: compared to other acquisition control devices based on cpci bus standard, multi-functional acquisition control device based on cpci bus standard provided by the invention can being separated of optimized integration communication module and specific functional modules, acquisition and control card realizes the stabilized communication with industrial computer, develop SSI data acquisition card based on different functional requirements, realize the synchronous acquisition of maximum 6 road SSI signals; Develop DAC data processing card simultaneously, achieve the controlled output of 16 road DAC, two kinds of boards can steady operation on acquisition and control card simultaneously, thus realize industrial control computer simultaneously to the monitor and forecast of sensor and actuator, simultaneously also for the exploitation of greater functionality board provides general-purpose interface and reference case, greatly reduce the cost of whole acquisition control device, when ensureing high precision, two-forty, improve the extensibility of whole device, more adapt to the complicated requirement in industrial measurement and control field.
Accompanying drawing explanation
Fig. 1 is structural principle block diagram of the present invention;
Fig. 2 is the theory diagram of SSI data acquisition card of the present invention;
Fig. 3 is the theory diagram of DAC data processing card of the present invention;
Fig. 4 is the circuit diagram of external interface of the present invention;
Fig. 5 is the circuit diagram of cpci bus link block of the present invention;
Fig. 6 and Fig. 7 is the circuit diagram of common interface module of the present invention;
Fig. 8 is the circuit diagram of the FPGA module of acquisition and control card of the present invention;
Fig. 9 is the circuit diagram of PCI bridging chip of the present invention;
Figure 10 is the circuit diagram of SSI module of the present invention;
Figure 11 and Figure 12 is the circuit diagram of the general-purpose interface of SSI data acquisition card of the present invention;
Figure 13 is the circuit diagram of DAC module of the present invention;
Figure 14 and Figure 15 is the circuit diagram of the general-purpose interface of DAC data processing card of the present invention;
Figure 16 is the circuit diagram of ALVC164245 chip of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Multi-functional acquisition control device based on cpci bus standard of the present invention, its general structure block diagram as shown in Figure 1, comprise the external interface 1 of acquisition and control card, cpci bus link block 2, common interface module 3, the FPGA module 4 of acquisition and control card, PCI bridging chip 5, power module 6, SSI data acquisition card and DAC data processing card.
Wherein acquisition and control card is the main control board of whole device, and SSI data acquisition card and DAC data processing card are the function daughter boards being integrated with difference in functionality module.
In Fig. 1, the common interface module 3 of acquisition and control card has two identical slot regions, two pieces of function daughter boards can be connected simultaneously, each slot region is made up of 40 parallel pin male slots of two rows, the common interface module 3 of acquisition and control card is be connected with the FPGA module 4 of external interface 1 and acquisition and control card on acquisition and control card, SSI data acquisition card or DAC data processing card can be plugged on the slot region of this module by the general-purpose interface of self simultaneously, realize the connection with acquisition and control card.In Fig. 1, the FPGA module 4 of acquisition and control card is with the fpga chip XC3S50 of the SPARTAN series of Xilinx company for core, and its other end is connected with PCI bridging chip module 5; PCI bridging chip module 5 in Fig. 1 adopts the PCI9052 interface chip of PLX company, and its other end is connected with cpci bus link block 2; Cpci bus link block 2 in Fig. 1 is connected with industrial computer by the backboard slot of industrial computer, thus can receive the steering order of industrial computer transmission and transmit the signal collected to industrial computer.
Whole device is powered by the power module on acquisition and control card, its input voltage of power module 6 in Fig. 1 is divided into three kinds, + 5V ,+12V ,-12V respectively, thered is provided by industrial computer backboard, export and direct current+3.3V is provided ,+2.5V and+1.2V, + 3.3V provides reference voltage for FPGA, + 2.5V provides boosting voltage for FPGA, and+1.2V provides inner core voltage for FPGA, and+5V and+12V voltage also will output to external interface 1 and common interface module 3 simultaneously.
The structure of the SSI signals collecting fixture body in Fig. 1 as shown in Figure 2, the SSI module 8 that in Fig. 2, FPGA module 7 one end of SSI data acquisition card is identical with 6 connects, the other end is connected with the interface B of the general-purpose interface 9 of SSI data acquisition card, realize communicating with the FPGA 4 of acquisition and control card, and control SSI module; 6 SSI modules in Fig. 2 are except being connected with the FPGA module 7 of SSI data acquisition card, and the other end is connected with the interface A of general-purpose interface 9, and then are connected with peripherals by external interface 1, collection signal; General-purpose interface 9 in Fig. 2 is made up of 40 parallel pin female slots of two rows, can be connected, whole SSI data acquisition card is vertically plugged on acquisition and control card with the common interface module 3 of acquisition and control card.
The concrete structure of the DAC data processing card in Fig. 1 as shown in Figure 3, the DAC module 11 that in Fig. 3, FPGA module 10 one end of DAC data processing card is identical with 4 connects, the other end is connected with the interface B of the general-purpose interface 12 of DAC data processing card, realize communicating with the FPGA 4 of acquisition and control card, and control DAC module; 4 DAC module in Fig. 3 are except being connected with FPGA module 10, and the other end is connected with the interface A of general-purpose interface 12, and then export data by external interface 1 peripheral device; General-purpose interface 12 in Fig. 3 is made up of 40 parallel pin female slots of two rows, can be connected, whole DAC data processing card is vertically plugged on acquisition and control card with the common interface module 3 of acquisition and control card.
External interface 1 in Fig. 1 is 90 degree of female interfaces of SCSI 68 pin, can be connected with the sensor of periphery or actuator, and on acquisition and control card, external interface 1 respectively with two slot joint areas of common interface module 3, can ensure that SSI data acquisition card or DAC data processing card are connected with peripherals simultaneously, physical circuit as shown in Figure 4.
Cpci bus link block 2 in Fig. 1 meets cpci bus agreement, the command of 32 can be realized, cpci bus link block one end is connected with PCI bridging chip module 5, the other end is connected with industrial computer backboard slot by CPCI connector, realize the stabilized communication with computing machine, physical circuit as shown in Figure 5.
Except GND pin in 1 to No. 40 pins of the common interface module 3 in Fig. 1, all the other pins are all connected with external interface module 1, in 41 to No. 80 pins, except GND pin, also have 6 pins to be connected with power module respectively, all the other pins are all connected with the FPGA module 4 of acquisition and control card.Its concrete circuit connects as shown in Figure 6 and Figure 7.
The FPGA module 4 of the acquisition and control card in Fig. 1 with the fpga chip XC3S50 of the SPARTAN series of Xilinx company for core, its one end is connected with common interface module 3, its other end is connected with PCI bridging chip module 5 by ALVC164245 chip, and concrete circuit is as shown in Fig. 8 and Figure 16.
PCI bridging chip module 5 in Fig. 1 with the PCI9052 interface chip of PLX company for core, be connected with 93CS46 chip by EECS, EESK, EEDI, EEDO pin, PCI9052 chip is connected with ALVC164245 chip by these 8 pins of LAD0 to LAD7 simultaneously, and then be connected with the FPGA module 4 of acquisition and control card, in addition, PCI9052 is also connected with cpci bus link block 2.Physical circuit such as Fig. 9 with Figure 16 is connected.
6 SSI modules 8 in Fig. 2 all with the MAX490 chip of MAXIM company for core, input a clock signal clk by FPGA module 7, export a pair differential signal CLK+, CLK-by MAX490, in order to control the absolute value encoder in peripherals; MAX490 chip receives a pair differential input signal DATA+ and DATA-simultaneously, exports the FPGA module 7 of serial data DATA to SSI data acquisition card.Physical circuit as shown in Figure 10.
General-purpose interface 9 in Fig. 2 is the parallel 40 pin female slots of two rows, and can be inserted on the common interface module 3 of acquisition and control card, in 1 to No. 40 pins, except part GND pin, other are all connected with external interface 1 by slot.And on SSI data acquisition card, these pins are then connected with DATA+, DATA-, CLK+, CLK-of SSI module respectively; In 41 to No. 80 pins, except part GND pin, also have 6 road voltage input signals, + 12V ,-12V ,+5V ,+3.3V ,+2.5V ,+1.2V respectively, all the other pins are data and control signal, be connected with the FPGA of acquisition and control card by slot, and on SSI data acquisition card, these pins are then connected with the FPGA module 7 of SSI data acquisition card.Physical circuit as is illustrated by figs. 11 and 12.
4 DAC module 11 in Fig. 3 are by AD5754R chip composition, and AD5754R chip is 16 bit serial inputs, the digital to analog converter that voltage exports; FPGA module 10 output terminal is connected to the input end of general-purpose interface 12 through 4 DAC module 11, and the FPGA module 10 of DAC data processing card provides digital signal and the number control signal of 16 for DAC module.Physical circuit as shown in figure 13.
General-purpose interface 12 in Fig. 3 is the parallel 40 pin female slots of two rows, can be inserted on the common interface module of acquisition and control card, wherein in 1 to No. 40 pins, except part GND pin, other are all connected with external interface 1 by slot, and on DAC data processing card, these pins are then connected with the output terminal of DAC module respectively; In 41 to No. 80 pins, except GND pin, also have 6 road voltage input signals, + 12V ,-12V ,+5V ,+3.3V ,+2.5V ,+1.2V respectively, all the other pins are data and control signal, be connected with the FPGA of acquisition and control card by slot, and on DAC data processing card, these pins are then connected with the FPGA module 10 of DAC data processing card.Physical circuit is as shown in Figure 14 and Figure 15.
The course of work of the present invention is as follows: industrial control computer sends instruction by cpci bus link block to acquisition and control card, after pci bridge chip module receives the instruction of cpci bus link block, the instruction that the FPGA module changing into acquisition and control card can read, FPGA module is according to corresponding instruction, first select to identify the functional cards in some slot regions, looked for by address, by corresponding functional cards to acquisition and control card feedback status information, thus complete initialization.
When needs carry out collection control to SSI data acquisition card, instruction is sent by the common interface module of acquisition and control card to the FPGA of SSI data acquisition card by the FPGA of acquisition and control card, comprise address, read write command and bit wide setting data etc., simultaneously SSI module by Real-time Collection to SSI signal send to the FPGA of SSI data acquisition card, then send to the FPGA of acquisition and control card, the collection of final settling signal is also uploaded to the host computer of computing machine.
When needs control DAC data processing card, the FPGA of collection control card provides digital signal and the number control signal of 16 to 4 DAC module by the common interface module of acquisition and control card, each DAC module and then export corresponding voltage signal, be transferred to external interface module by the common interface module of acquisition and control card, thus control the duty of peripheral actuator.
Of the present invention one large innovative point is, utilize the acquisition and control card based on cpci bus standard and industrial computer stabilized communication, and pass through the design of versatility interface, functional module is separated, designs separately, the demand of several functions can be met simultaneously, also for developing the hardware interface that more functional cards provides open further, the demand of industrial control field more sophisticated is adapted to better.
Claims (3)
1. the multi-functional acquisition control device based on cpci bus standard, it is characterized in that: comprise acquisition and control card, SSI data acquisition card and DAC data processing card, acquisition and control card is provided with external interface (1), cpci bus link block (2), common interface module (3), the FPGA module (4) of acquisition and control card, PCI bridging chip module (5) and power module (6); SSI data acquisition card is provided with the general-purpose interface (9) of FPGA module (7), six SSI modules (8), SSI data acquisition card; DAC data processing card is provided with the general-purpose interface (12) of FPGA module (10), four DAC module (11), DAC data processing card;
Acquisition and control card is connected with peripherals by external interface (1), can realize being connected with the sensor of periphery or actuator; Acquisition and control card is connected with industrial computer backboard slot by cpci bus link block (2), and realize the stabilized communication with computing machine, cpci bus link block (2) meets cpci bus agreement; On acquisition and control card, external interface (1) is connected with common interface module (3); The common interface module (3) of described acquisition and control card has two identical slot regions, can be connected with two pieces of function daughter boards simultaneously, each slot region is made up of 40 parallel pin male slots of two rows, and two rows of sockets in each slot region are connected with the FPGA module (4) of Peripheral Interface (1) and acquisition and control card respectively; Described PCI bridging chip module (5) is connected with the FPGA module (4) of acquisition and control card with cpci bus link block (2) respectively;
The general-purpose interface (9) of described SSI data acquisition card is the parallel 40 pin female slots of two rows, and SSI data acquisition card is plugged on the common interface module (3) of acquisition and control card by the general-purpose interface (9) of SSI data acquisition card; On SSI data acquisition card, the FPGA module (7) of SSI data acquisition card is connected with 6 SSI modules (8) respectively, one rows of sockets of the general-purpose interface (9) of SSI data acquisition card is connected with 6 SSI modules (8) respectively, and another rows of sockets is connected with the FPGA module (7) of SSI data acquisition card;
The general-purpose interface (12) of described DAC data processing card is the parallel 40 pin female slots of two rows, and DAC data processing card is plugged in common interface module (3) connection of acquisition and control card by the general-purpose interface (12) of DAC data processing card; On DAC data processing card, the FPGA module (10) of DAC data processing card is connected with 4 DAC module (11) respectively, one rows of sockets of the general-purpose interface (12) of DAC data processing card is connected with 4 DAC module (11) respectively, and another rows of sockets is connected with the FPGA module (10) of DAC data processing card.
2. a kind of multi-functional acquisition control device based on cpci bus standard according to claim 1, it is characterized in that: described power module (6) its input voltage is divided into three kinds, + 5V ,+12V ,-12V respectively, thered is provided by industrial computer backboard, output provides direct current+3.3V, + 2.5V and+1.2V, + 3.3V provides reference voltage for FPGA, + 2.5V provides boosting voltage for FPGA, + 1.2V provides inner core voltage for FPGA, and+5V ,+12V and-12V voltage also will output to external interface (1) and common interface module (3) simultaneously.
3. a kind of multi-functional acquisition control device based on cpci bus standard according to claim 1, it is characterized in that: the external interface of described acquisition and control card is 90 degree of female interfaces of SCSI 68 pin, can be connected with peripherals by 90 degree of male interfaces of SCSI 68 pin, described peripherals is absolute value encoder, motor.
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