CN103577243A - Signal simulation device and signal board card - Google Patents
Signal simulation device and signal board card Download PDFInfo
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- CN103577243A CN103577243A CN201210277076.XA CN201210277076A CN103577243A CN 103577243 A CN103577243 A CN 103577243A CN 201210277076 A CN201210277076 A CN 201210277076A CN 103577243 A CN103577243 A CN 103577243A
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Abstract
The invention discloses a signal simulation device, which comprises a control module and a plurality of signal board cards, wherein the control module is used for setting the work state of the signal board cards, receives target data, collected by the signal board cards under the signal collecting state, of a target system, carries out simulation on the target system according to the target data, and generates simulation data; the signal board cards are used for collecting target signals of the target system when the work state is the signal collecting state, carries out conversion on the target signals to generate corresponding target data, and sends the target data to the control module. The invention also discloses a signal board card. The signal simulation device and the signal board card have the advantages that the data of the target system can be collected, and in addition, the data of the target system is utilized for realizing the simulation of the target system, so the target system can be more conveniently and precisely simulated.
Description
Technical field
The present invention relates to signal processing technology field, particularly a kind of signal imitation device and signal board.
Background technology
Signal generator, has a wide range of applications in fields such as communication, radar, navigation, measurement, scientific research and teaching as a kind of basic electronic equipment.Particularly AWG (Arbitrary Waveform Generator), because it can produce the required various actual signals of user, makes user need in the past the debugging of carrying out at the scene.Can carry out in laboratory now, greatly shorten research and development and field erected progress.
Traditional signal generator mainly exists function singleness, expanded function poor, the shortcoming such as circuit component is many, maintenance cost height.And, the intelligent degree of traditional signal generator is not high, can only send to one direction given signal, and in a lot of hardware-in-loop simulation experiments, the signal correction that given signal often sends with goal systems, now general signal generator just demonstrates significant limitation.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or at least provides a kind of useful business to select.For this reason, one object of the present invention is to propose a kind of signal imitation device that can gather goal systems data and carry out emulation.Second object of the present invention is to provide a kind of signal board.
For achieving the above object, the embodiment of a first aspect of the present invention provides a kind of signal imitation device, comprise: control module and a plurality of signal board, described control module is for arranging the duty of described a plurality of signal boards, wherein, the duty of described a plurality of signal boards comprises: signals collecting state and signal send state, described control module receives the target data of the goal systems of a plurality of described signal board collection under described signals collecting state, and according to described target data, described goal systems is carried out emulation and generated emulated data; When described a plurality of signal board is used for being signals collecting state in working order, gather the echo signal of described goal systems, and described echo signal conversion is generated to corresponding described target data, and described target data is sent to described control module.
According to the signal imitation device of the embodiment of the present invention, can gather, process and occur multichannel analog signals, the state of real-time monitoring objective system, gather the data of goal systems, and utilize goal systems data to realize the emulation to goal systems, thereby more convenient and accurately goal systems is carried out to emulation.
The embodiment of second aspect present invention provides a kind of signal board, comprise: signal conversion module, described signal conversion module comprises analog/digital conversion unit, for gathering the echo signal of goal systems, and described echo signal is carried out to analog/digital conversion to generate corresponding described target data; Local bus, described local bus and described analog/digital conversion unit communicate, for transmitting described target data; Bridging chip, described bridging chip and described local bus communicate, for receiving the described target data of being transmitted by described local bus; Signal transmission bus, described signal transmission bus and described bridging chip communicate, and for receiving described target data, and described target data are sent to control module.
Signal board according to the embodiment of the present invention, can gather, processes and occur multiple signals, in real time the state of monitoring objective system.And, the target data collecting can be transferred to control module, so that control module is carried out emulation according to target data to goal systems, thus more convenient and accurately goal systems is carried out to emulation.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is according to the schematic diagram of the signal imitation device of the embodiment of the present invention;
Fig. 2 is according to the signal imitation device of the embodiment of the present invention and the communication scheme of goal systems;
Fig. 3 is according to the system framework figure of the signal imitation device of the embodiment of the present invention and goal systems;
Fig. 4 is the schematic diagram of signal board according to an embodiment of the invention; And
Fig. 5 is the schematic diagram of signal board in accordance with another embodiment of the present invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
Below with reference to Fig. 1 to Fig. 3, describe according to the signal imitation device of the embodiment of the present invention.
As shown in Figure 1, the signal imitation device of the embodiment of the present invention comprises a plurality of signal boards 100 and control module 200.
The duty of 200 pairs of a plurality of signal boards 100 of control module arranges.Wherein, the duty of a plurality of signal boards 100 comprises that signals collecting state and signal send state.Particularly, be provided with control panel in control module, control panel shows controls interface.User can arrange the duty of a plurality of signal boards 100 by controlling interface, for example, the duty of setting unit sub-signal board 100 is signals collecting state, gathers the signal of goal systems; The duty that another part signal board 100 is set is that signal sends state, to goal systems, sends prearranged signal.Control the waveform that interface can show each road signal in real time.
By the signal board 100 in signals collecting state, be designated as signal receiving card below, and by the signal board 100 in signal accepting state, be designated as signal sending card.
The signal board of signal receiving card 100(in signals collecting state) communicate with goal systems, can gather the echo signal of goal systems 300.Wherein, echo signal is simulating signal.Particularly, the voltage signal of the interface of 100 collections of signal receiving card and goal systems.Then, 100 pairs of echo signal conversions that collect of signal receiving card generate corresponding target data.
In one embodiment of the invention, 100 pairs of echo signals of signal receiving card are carried out analog/digital (A/D) conversion, echo signal are converted to digital signal by simulating signal, i.e. target data.
Signal receiving card 100 sends to control module 200 by above-mentioned target data by signal bus.The target data that control module 200 receives from signal receiving card 100, and according to target data, goal systems is carried out to emulation, generate corresponding emulated data.
A plurality of signal board 100(that control module 200 is further transferred to the above-mentioned emulated data relevant to goal systems in signal transmission state by signal bus are signal sending card).
Particularly, control module 200 is to a plurality of signal sending card 100 transmitted signal instructions.Wherein, signal instruction can comprise that user passes through Wave data that the predetermined waveform signal the control interface of control module 200 selected is corresponding and/or from the emulated data of described signal receiving card 100.
In one embodiment of the invention, control module 100 can be host computer.Wherein, in control module 100, be provided with the slot mating with signal bus.
In one embodiment of the invention, signal board 100 can be PCI(Peripheral Component Interconnect, Peripheral Component Interconnect standard) board.
When signal board 100 is PCI board, signal bus is pci bus.And, in control module 200, be provided with PCI slot, for pci bus is installed.Thereby signal board 100(comprises signal receiving card and signal sending card) can communicate by pci bus and control module 200.
By pci bus, carry out data transmission, not only data throughout is large, and can gather simultaneously and send multichannel analog signals, has higher real-time.
Particularly, signal receiving card 100 sends to control module 200 by pci bus by target data, and signal sending card 100 receives signal instruction by pci bus from control module 200.
Below with reference to Fig. 2 and Fig. 3, take electric machine controller is described the signal imitation device of the embodiment of the present invention as goal systems.
As shown in Figure 2, a plurality of PCI boards comprise PCI board A, PCI board B, PCI board C, PCI board D and PCI board E.Wherein, PCI board A and PCI board B are set in signals collecting state by control module 200, i.e. signal receiving card.PCI board C, PCI board D and PCI board E are set to send state, i.e. signal sending card in signal.A plurality of PCI boards communicate with goal systems 300 respectively, and are provided with PCI slot in control module 200, and for pci bus is installed, thereby a plurality of PCI board can communicate by pci bus and control module 200.
As shown in Figure 3, in control module 200, be provided with and control interface, the Labcard driver program that user can arrange a plurality of signal boards 100 by control interface is so that the duty of a plurality of signal boards 100 to be set, and Labcard driver program can write a signal board 100 at the most by pci bus.
Signal receiving card A and signal receiving card B gather for example electric machine controller of goal systems 300() echo signal.Wherein, the torque signal that echo signal electric machine controller 300 calculates according to throttle and brake signal.Signal receiving card A and signal receiving card B carry out A/D conversion to obtain moment of torsion data by above-mentioned torque signal, and moment of torsion data are sent to control module 200 by pci bus.
By above-mentioned emulation experiment, can, in the situation that not carrying out vehicle and platform experiment, to the function of controller for electric vehicle and performance, there is an assessment comparatively accurately.And the software parameter of software phantom is easy to revise in control module 200, thereby also provide great convenience for the parameter matching of control module 200 and the optimization of control strategy.
The present invention expands controlling the Interface design of software and realistic model, can adopt Mixed-Programming Technology.Signal imitation device, by the input using the signal collecting as realistic model, by realistic model synchronous operation, and is exported corresponding emulated data, by host computer, is shown result and is transferred to corresponding board by pci bus.
In one embodiment of the invention, in order to produce quickly and easily random waveform, on the control interface of control module 200, be provided with multiple waveforms and select.User can select waveform can select to produce the conventional function waveform signals such as sine wave, square wave, triangular wave on control interface, and by pci bus, sends a signal sending card 100 as Wave data.By 100 pairs of above-mentioned Wave datas of signal sending card, carry out D/A conversion to generate corresponding analog waveform signal, and export this analog waveform signal to goal systems, so that goal systems is controlled.
The signal imitation device of the embodiment of the present invention is comprised of hardware and software two large divisions.Hardware components comprises the PCI board of control module (for example host computer) and a plurality of difference in functionalitys, and the collection of signal and generation are controlled by control module, and are completed by PCI board.Software section comprises PCI Labcard driver program and upper level applications.In the time of need to improving, as long as upgrading PCI board and application software are easy to maintenance, and with low cost.
By the cooperation of above-mentioned hardware and software, signal imitation device can gather, processes and occur multichannel analog signals, for goal systems provides control signal and undesired signal, and the state of monitoring objective system in real time, by the analysis of collection, demonstration and signal with betide one, can the signal of the signal sending and collection be associated by software phantom, carry out simulation hardware and software emulation simultaneously, thus more convenient and accurately goal systems is carried out to emulation.
Below with reference to Fig. 4 and Fig. 5, describe according to the signal board of the embodiment of the present invention.Wherein, signal board can be PCI(Peripheral Component Interconnect, Peripheral Component Interconnect standard) board.Signal board can comprise any in following two kinds of duties: signals collecting state and signal send state.Duty by 200 pairs of a plurality of signal boards 100 of control module arranges.Particularly, be provided with control panel in control module, control panel shows controls interface.User can arrange by controlling interface the duty of a plurality of signal boards 100.
As shown in Figure 4, the signal board that the embodiment of the present invention provides comprises: signal conversion module 110, local bus 120, bridging chip 130 and signal transmission bus 140.
Signal conversion module 110 comprises analog/digital (A/D) converting unit, for gathering the echo signal of goal systems.Wherein, echo signal is simulating signal.Particularly, the voltage signal of the interface of signal conversion module 110 collections and goal systems, and echo signal is carried out to analog/digital conversion to generate corresponding target data.Now, signal board is in signals collecting state.
Local bus (Local bus) 120 communicates with analog/digital conversion unit, and target data is transferred to bridging chip 130.
As shown in Figure 5, in one embodiment of the invention, signal board also comprises local bus configuration module 150.Local bus configuration module 150 is connected with bridging chip 130 with signal conversion module 110 respectively, for configuring the sequential logic of local bus 120.
In an example of the present invention, local bus configuration module 150 can be FPGA(Field Programmable Gate Array, thread programmable gate array) or (Complex Programmable Logic Device, complex programmable logic device (CPLD)).Adopt the benefit of FPGA to be, can in the situation that not changing hardware platform, complete the reconstruct of signal plate card control logic and upgrading, applying flexible and convenient.
Signal board can adopt special-purpose bridging chip 130 as the interface with pci bus, realizes the exchanges data with control module 200.
Particularly, bridging chip 130 comprises pci bus interface and LOCAL bus interface.Wherein, pci bus interface can be realized data, address and the control circuit interface of PCI bridging chip 130 and control module and local bus.
In one embodiment of the invention, bridging chip 130 also comprises: fifo fifo (First In First Out, first in first out) data buffer.Data fifo buffer is connected with pci bus 140, corresponding Wave data and/or the emulated data of waveform signal of the user by selecting sending for storage control module 200.
LOCAL bus interface is the Interface design between bridging chip and data buffer storage FIFO and local bus configuration module 150 read-write steering logics, realizes data transmission and the control circuit interface of bridging chip 130 and FIFO.
In yet another embodiment of the present invention, signal board also comprises bridging chip configuration module 160.Bridging chip configuration module 160 is connected with bridging chip 140, for bridging chip 140 is configured, and preserves the initialization data of bridging chip 140.Wherein, initialization data comprises that pci bus and local bus processor are at the configuration information of bus.After reset completes, bridging chip 130 was automatically downloaded these data before these two kinds of buses of response, carried out initialization operation.
In one embodiment of the invention, bridging chip configuration module 160 can be EEPROM Electrically Erasable Programmable Read-Only Memory, EEPROM (Electrically Erasable Programmable Read Only Memo)).
Correspondingly, bridging chip 130 also comprises EEPROM interface, realizes the interface of bridging chip 130 and bridging chip configuration module 160.
In the design of signal board, in order to guarantee data high-speed transfer in pci bus, adopt asynchronous FIFO transmission mode, it can realize Direct data access (DMA) technology, thereby can guarantee the peak transfer rate of pci bus.
Signal transmission bus 140 communicates with bridging chip 130, for receiving target data, and target data is sent to control module 200.In an example of the present invention, signal transmission bus 140 can be pci bus.
In yet another embodiment of the present invention, the signal instruction that signal transmission bus 140 also sends for receiving control module 200, and signal instruction is sent in the data fifo buffer of bridging chip 130, and by local bus 120, be sent to signal conversion module 110 by bridging chip 130.Now, signal board sends state in signal.
It should be noted that, signal board can have the function of signals collecting and signal transmission concurrently, but after the duty of 200 pairs of signal boards of control module sets, signal board is only carried out and corresponding collection or sending function are set.Above-mentioned " collection " and the object of " transmission " are goal systems.
Signal instruction comprises that user passes through corresponding Wave data and/or the emulated data of waveform signal that control module 200 is selected.Wherein, emulated data is that control module 200 is carried out emulation and generates goal systems according to target data.
Signal conversion module 110 also comprises digital-to-analog (D/A) converting unit, for Wave data and/or emulated data are carried out to digital-to-analog conversion, generates corresponding analog control signal.Then, signal conversion module 110 is transferred to goal systems by the analog control signal of generation by the interface of communicating by letter with goal systems, thereby controls the work of goal systems.
Signal board according to the embodiment of the present invention, can gather, processes and occur multiple signals, in real time the state of monitoring objective system.And, the target data collecting can be transferred to control module, so that control module is carried out emulation according to target data to goal systems, thus more convenient and accurately goal systems is carried out to emulation.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, modification, replacement and modification.
Claims (18)
1. a signal imitation device, comprising: control module and a plurality of signal board,
Described control module is for arranging the duty of described a plurality of signal boards, wherein, the duty of described a plurality of signal boards comprises: signals collecting state and signal send state, described control module receives the target data of the goal systems of a plurality of described signal board collection under described signals collecting state, and according to described target data, described goal systems is carried out emulation and generated emulated data;
When described a plurality of signal board is used for being signals collecting state in working order, gather the echo signal of described goal systems, and described echo signal conversion is generated to corresponding described target data, and described target data is sent to described control module.
2. signal imitation device as claimed in claim 1, is characterized in that, described signal board is Peripheral Component Interconnect Standard PC I board.
3. signal imitation device as claimed in claim 2, is characterized in that, described control module is provided with PCI slot.
4. signal imitation device as claimed in claim 2, is characterized in that, described signal plate cartoon crosses pci bus and described control module communicates.
5. signal imitation device as claimed in claim 1, is characterized in that, described signal board carries out analog/digital signal conversion to described echo signal, generates described target data.
6. the signal imitation device as described in claim 1-5 any one, it is characterized in that, described a plurality of signal board is also when sending state for signal in working order, the signal instruction sending according to control module, send the analog control signal corresponding with described signal instruction, wherein, described signal instruction comprises corresponding Wave data and/or the described emulated data of waveform signal that user selects by described control module.
7. signal imitation device as claimed in claim 6, is characterized in that, it is described a plurality of signal boards that signal sends state that described control module is sent to duty by pci bus by described signal instruction.
8. signal imitation device as claimed in claim 6, is characterized in that, described signal board carries out digital-to-analog conversion by described Wave data and/or described emulated data, generates corresponding described analog control signal.
9. signal imitation device as claimed in claim 1, is characterized in that, described control module is host computer.
10. a signal board, comprising:
Signal conversion module, described signal conversion module comprises analog/digital conversion unit, for gathering the echo signal of goal systems, and described echo signal is carried out to analog/digital conversion to generate corresponding described target data;
Local bus, described local bus and described analog/digital conversion unit communicate, for transmitting described target data;
Bridging chip, described bridging chip and described local bus communicate, for receiving the described target data of being transmitted by described local bus; And
Signal transmission bus, described signal transmission bus and described bridging chip communicate, and for receiving described target data, and described target data are sent to control module.
11. signal boards as claimed in claim 10, is characterized in that, also comprise local bus configuration module, and described local bus configuration module is connected with described bridging chip with described signal conversion module respectively, for configuring the sequential logic of described local bus.
12. signal boards as claimed in claim 11, is characterized in that, described local bus configuration module is thread programmable gate array FPGA or complex programmable logic device (CPLD).
13. signal boards as described in claim 10-12 any one, it is characterized in that, also comprise bridging chip configuration module, described bridging chip configuration module is connected with described bridging chip, for described bridging chip is configured, and preserve the initialization data of described bridging chip.
14. signal boards as claimed in claim 10, is characterized in that, described signal board is Peripheral Component Interconnect Standard PC I board.
15. signal boards as claimed in claim 14, is characterized in that, described signal transmission bus is pci bus.
16. signal boards as claimed in claim 15, it is characterized in that, the signal instruction that described signal transmission bus also sends for receiving described control module, and described signal instruction is sent to described bridging chip, and by described local bus, be sent to described signal conversion module by described bridging chip, wherein, described signal instruction comprises corresponding Wave data and/or the emulated data of waveform signal that user selects by described control module, wherein, described emulated data is that described control module is carried out emulation and generates described goal systems according to described target data.
17. signal boards as claimed in claim 16, is characterized in that, described bridging chip also comprises:
Fifo fifo data buffer, described data fifo buffer is connected with described pci bus, for storing described Wave data and/or emulated data.
18. signal boards as claimed in claim 16, is characterized in that, described signal conversion module also comprises digital/analog converter, for described Wave data and/or emulated data are carried out to digital-to-analog conversion, generate corresponding described analog control signal.
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| CN111444598A (en) * | 2020-03-19 | 2020-07-24 | 深圳供电局有限公司 | Control terminal of comprehensive energy system |
| CN117724449A (en) * | 2023-12-15 | 2024-03-19 | 昆易电子科技(上海)有限公司 | Simulation device and test system |
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