CN203643829U - Controller area network (CAN) bus testing device - Google Patents
Controller area network (CAN) bus testing device Download PDFInfo
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- CN203643829U CN203643829U CN201320782653.0U CN201320782653U CN203643829U CN 203643829 U CN203643829 U CN 203643829U CN 201320782653 U CN201320782653 U CN 201320782653U CN 203643829 U CN203643829 U CN 203643829U
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Abstract
The utility model provides a controller area network (CAN) bus testing device. The device comprises: a power supply module supplying a CAN master control device, a CAN device under test, a testing host and an oscilloscope with power; the CAN master control device, which, under the control of the testing host, transmits CAN signals to the CAN device under test or receives CAN signals transmitted by the CAN device under test; the CAN device under test, which transmits the CAN signals to the CAN master control device or receives the CAN signals transmitted by the CAN master control device; the oscilloscope, which displays the waveforms of the CAN signals transmitted by the CAN master control device or the CAN device under test and transmits the waveforms to the testing host under the control of the testing host; and the testing host, which determines based on the received waveforms if the CAN device under test satisfies the standardization requirements. The device improves test result precision and test efficiency.
Description
Technical field
The utility model relates to automatization testing technique field, relates in particular to a kind of controller area network bus test device.
Background technology
Along with the fast development of track traffic industry, the application of vehicle bus in vehicle is more and more wider.In numerous vehicle bus, networking is simple, cost is low, high reliability owing to having for bus, is therefore more and more subject to the favor of track manufacturer for controller local area network (Controller Area Network is called for short CAN).In this case, the CAN equipment using in vehicle is more and more, and these CAN equipment are developed by different manufacturers.Due to CAN controller design concept and the components and parts difference of each manufacturer's use, cause the CAN equipment receiving ability difference of different vendor's exploitation very large, even the CAN equipment of some manufacturer's exploitation all can cause certain interference to the CAN network of car load, has a strong impact on the Stability and dependability of vehicle network.Therefore before the entrucking of CAN equipment, the manufacturer that is responsible for car load CAN network can carry out standardization (or consistance) test to the CAN equipment of each manufacturer's exploitation.
In prior art, to the standardized test of CAN equipment mainly take manual testing as main.Fig. 1 is the structural representation of CAN bus test device in prior art, as shown in Figure 1, supply module 11 is used to each equipment that working power is provided, controller area network main control equipment 12 is by CAN(CANH and CANL) bus is connected with controller area network equipment under test 13, and two probes of oscillograph 14 are connected with CANH and CANL cable respectively.Tester is by the waveform of manual observation oscillograph 14, and contrasts with reference waveform, thereby judges whether CAN equipment under test 13 meets standardization requirement.
But there is following shortcoming in prior art: adopt manual testing, and the impact of tested person personnel level on the one hand, the accuracy of test result is lower, and test process needs manual intervention on the other hand, and testing efficiency is lower.
Utility model content
The utility model provides a kind of controller area network bus test device, in order to solve the problem that accuracy is lower and testing efficiency is lower of the test result existing in prior art.
The utility model provides a kind of controller area network bus test device, comprising: supply module, CAN main control equipment, CAN equipment under test, Test Host and oscillograph, wherein:
Described supply module, is used to described CAN main control equipment, described CAN equipment under test, described Test Host and described oscillograph that working power is provided;
Described CAN main control equipment, for sending CAN signal to described CAN equipment under test or receiving the CAN signal that described CAN equipment under test sends under the control of described Test Host;
Described CAN equipment under test, for sending CAN signal to described CAN main control equipment or receiving the CAN signal that described CAN main control equipment sends;
Described oscillograph for showing the waveform of the CAN signal that described CAN main control equipment or described CAN equipment under test send, and is sent to described Test Host by described waveform under the control of described Test Host;
Described Test Host, sends or receives CAN signal for controlling described CAN main control equipment, controls described oscillograph and sends described waveform, and judge according to the described waveform receiving whether described CAN equipment under test meets standardization requirement.
Controller area network bus test device as above, also comprises: program control test box;
Described program control test box is electrically connected by described CAN bus with described CAN main control equipment and described CAN equipment under test respectively, and described program control test box is electrically connected with described supply module and described Test Host respectively;
Described program control test box, for disturbing the CAN signal of described CAN main control equipment or the transmission of described CAN equipment under test under the control of described Test Host;
Described supply module also for: for described program control test box provides working power.
Controller area network bus test device as above, also comprises: switch;
Described switch is electrically connected with described supply module, described Test Host and described oscillograph respectively;
Described switch, the control signal sending for receiving described Test Host, and described control signal is sent to described oscillograph, to control described oscillograph, described waveform is sent to described Test Host by described switch;
Described supply module also for: for described switch provides working power.
Controller area network bus test device as above, also comprises: printer;
Described printer is electrically connected with described supply module and described switch respectively;
Described Test Host also for: generate test report according to the described waveform receiving, and control described printer and print described test report;
Described printer, for printing described test report under the control of described Test Host;
Described supply module also for: for described printer provides working power.
In controller area network bus test device as above, described supply module comprises: power control box and programmable power supply;
Described power control box is electrically connected with described programmable power supply, described Test Host, described switch, described printer and described oscillograph respectively, and described programmable power supply is electrically connected with described Test Host, described CAN main control equipment, described program control test box and described CAN equipment under test respectively;
Described power control box, is used to described programmable power supply, described Test Host, described switch, described printer and described oscillograph that working power is provided;
Described programmable power supply, under the control of described Test Host for described CAN main control equipment, described program control test box and described CAN equipment under test provide working power.
Controller area network bus test device as above, described Test Host is electrically connected with described programmable power supply by general purpose interface bus GPIB, be electrically connected with described CAN main control equipment by general-purpose serial bus USB, be electrically connected with described switch by Ethernet, be electrically connected with described program control test box by general-purpose interface RS-232.
In controller area network bus test device as above, described program control test box comprises: voltage transformation module, single-chip microcomputer and relay matrix;
Described voltage transformation module is electrically connected with described programmable power supply, described single-chip microcomputer and described relay matrix respectively, described single-chip microcomputer is electrically connected with described Test Host and described relay matrix respectively, and described relay matrix is electrically connected by described CAN bus with described CAN main control equipment and described CAN equipment under test respectively;
Described voltage transformation module, for the voltage of described programmable power supply input is transformed, thinks that described single-chip microcomputer and described relay matrix provide working power; Described single-chip microcomputer, for control the on off state of described each relay of relay matrix under the control of described Test Host, to form the interference of the CAN signal to described CAN main control equipment or the transmission of described CAN equipment under test.
The controller area network bus test device that the utility model provides, automatically control CAN main control equipment by Test Host and send or receive CAN signal, control oscillograph and automatically the waveform of CAN signal is sent to Test Host, whether Test Host meets standardization requirement according to the waveform automatic decision CAN equipment under test receiving, realize automatic testing process, thereby improved accuracy and the testing efficiency of test result.
Accompanying drawing explanation
Fig. 1 is the structural representation of CAN bus test device in prior art;
The structural representation of the embodiment of CAN bus test device that Fig. 2 provides for the utility model;
The structural representation of another embodiment of CAN bus test device that Fig. 3 provides for the utility model;
The structural representation of program control test box in the CAN bus test device that Fig. 4 provides for the utility model;
Fig. 5 is the circuit theory schematic diagram of the utility model program control test box repeat circuit matrix.
Embodiment
Below by specific embodiment and accompanying drawing, the technical solution of the utility model is described in further detail.
The structural representation of the embodiment of CAN bus test device that Fig. 2 provides for the utility model.As shown in Figure 2, this device specifically can comprise: supply module 11, CAN main control equipment 12, CAN equipment under test 13, Test Host 21 and oscillograph 14, wherein:
CAN main control equipment 12, for sending CAN signal to CAN equipment under test 13 or receiving the CAN signal that CAN equipment under test 13 sends under the control at Test Host 21.
CAN equipment under test 13, for sending CAN signal to CAN main control equipment 12 or receiving the CAN signal that CAN main control equipment 12 sends.
Oscillograph 14 for showing the waveform of the CAN signal that CAN main control equipment 12 or CAN equipment under test 13 send, and is sent to waveform Test Host 21 under the control of Test Host 21.
Concrete, supply module 11 is that each equipment (CAN main control equipment 12, CAN equipment under test 13, Test Host 21 and oscillograph 14) in this CAN bus test device provides suitable working power by power lead.CAN main control equipment 12 is as accompanying examination equipment in this CAN bus test device, can pass through USB (universal serial bus) (Universal Serial Bus with Test Host 21, be called for short USB) connect, and under the control of Test Host 21, send CAN signal to CAN equipment under test 13 or receive the CAN signal that CAN equipment under test 13 sends.Accordingly, CAN equipment under test 13 receives the CAN signal that CAN main control equipment 12 sends or sends CAN signal to CAN main control equipment 12.Two probes of oscillograph 14 are electrically connected with CANH and CANL in CAN bus respectively, the CAN signal sending for gathering CAN signal that CAN bus CAN main control equipment 12 sends or CAN equipment under test 13, and show the waveform of the CAN signal that collects, simultaneously under the control of Test Host 21, capture the waveform that Test Host 21 is specified, and the waveform of crawl is sent to Test Host 21, oscillograph 14 can be connected with Test Host 21 by Ethernet.Test Host 21 contrasts the waveform receiving and reference waveform, if consistent, judges that CAN equipment under test 13 meets standardization requirement, can be in vehicle CAN network, if inconsistent, judge that CAN equipment under test 13 does not meet standardization requirement, cannot be used for vehicle CAN network.
The CAN bus test device that the present embodiment provides, automatically control CAN main control equipment by Test Host and send or receive CAN signal, control oscillograph and automatically the waveform of CAN signal is sent to Test Host, whether Test Host meets standardization requirement according to the waveform automatic decision CAN equipment under test receiving, realize automatic testing process, thereby improved accuracy and the testing efficiency of test result.
The structural representation of another embodiment of CAN bus test device that Fig. 3 provides for the utility model.As shown in Figure 3, the CAN bus test device that the present embodiment provides, on basis embodiment illustrated in fig. 2, can also comprise: program control test box 31.
Program control test box 31 is electrically connected by CAN bus with CAN main control equipment 12 and CAN equipment under test 13 respectively, and program control test box 31 is electrically connected with supply module 11 and Test Host 21 respectively.
Program control test box 31, disturbs for the CAN signal under the control at Test Host 21, CAN main control equipment 12 or CAN equipment under test 13 being sent.
Concrete, the present embodiment has increased a program control test box 31 between CAN main control equipment 12 and CAN equipment under test 13.Supply module 11 provides suitable working power by power lead for program control test box 31.Test Host 21 is electrically connected with program control test box 31 by general-purpose interface RS-232, and by controlling the duty of program control test box 31, controls the CAN signal that program control test box 31 sends CAN main control equipment 12 or CAN equipment under test 13 and applies interference.Two probes of oscillograph 14 specifically can with program control test box 31 and CAN equipment under test 13 between CAN bus be electrically connected, Test Host 21 is controlled oscillograph 14 and captures the waveform of CAN signal under program control test box 31 different operating states, and contrast with reference waveform respectively, if all consistent, judge that CAN equipment under test 13 meets standardization requirement, can be in vehicle CAN network, otherwise, judge that CAN equipment under test 13 does not meet standardization requirement, cannot be used for vehicle CAN network.
Further, the CAN bus test device that the present embodiment provides, on basis embodiment illustrated in fig. 2, can also comprise: switch 32.
Switch 32, the control signal sending for receiving Test Host 21, and control signal is sent to oscillograph 14, to control oscillograph 14, waveform is sent to Test Host 21 by switch 32.
Concrete, the present embodiment has increased a switch 32 between Test Host 21 and oscillograph 14.Supply module 11 provides suitable working power by power lead for switch 32.Test Host 21 and oscillograph 14 carry out Ethernet connection by switch 32, concrete: control signal is sent to switch 32 by Test Host 21, this control signal is forwarded to oscillograph 14 by switch 32, oscillograph 14 captures the waveform of CAN signal under program control test box 31 different operating states under the control of this control signal, and the appointment waveform of crawl is sent to switch 32, this appointment waveform is sent to Test Host 21 by switch 32, judges for Test Host 21 whether CAN equipment under test 13 meets standardization requirement.
Further, the CAN bus test device that the present embodiment provides, on basis embodiment illustrated in fig. 2, can also comprise: printer 33.
Concrete, supply module 11 provides suitable working power by power lead for printer 33.Test Host 21 generates test report automatically according to the waveform receiving, and controls printer 33 by switch 32 and print this test report.
Further, supply module 11 embodiment illustrated in fig. 2 specifically can comprise: power control box 34 and programmable power supply 35.
Concrete, power control box 34 provides suitable working power by power lead for programmable power supply 35, Test Host 21, switch 32, printer 33 and oscillograph 14.Programmable power supply 35 automatically provides suitable working power for CAN equipment (CAN main control equipment 12, program control test box 31 and CAN equipment under test 13) under the control of Test Host 21.Test Host 21 is controlled programmable power supply 35 and is inputed to the output voltage of above-mentioned three CAN equipment by GPIB.
The structural representation of program control test box in the CAN bus test device that Fig. 4 provides for the utility model.As shown in Figure 4, program control test box 31 specifically can comprise: voltage transformation module 41, single-chip microcomputer 42 and relay matrix 43.
Single-chip microcomputer 42, for the on off state of pilot relay matrix 43 each relays under the control at Test Host 21, to form the interference of the CAN signal that CAN main control equipment 12 or CAN equipment under test 13 are sent.
Concrete, it is that single-chip microcomputer 42 and relay matrix 43 are powered that the voltage that voltage transformation module 41 is inputted programmable power supply 35 is converted into 5V power supply.Test Host 21 communicates by general-purpose interface RS-232 and single-chip microcomputer, and by the on off state of each relay in the I0 mouth pilot relay matrix 43 of single-chip microcomputer 42, be operated under different working modes with pilot relay matrix 43, to form the interference of the CAN signal that CAN main control equipment 12 or CAN equipment under test 13 are sent.
Fig. 5 is the circuit theory schematic diagram of the utility model program control test box repeat circuit matrix.As shown in Figure 5, relay matrix 43 comprises 9 relay S101-S109, resistance R 1 and the R2 of two 1000 Ω.VCC is the 5V power supply from power transfer module 41, and GND is power supply ground.Test Host 21, by the on off state of single-chip microcomputer 42 pilot relay S101-S109, can make program control test box 31 be operated under 8 kinds of different working modes (normal mode of operation and 7 kinds of interference mode of operations in 1), specifically as shown in table 1.
Relay switch state under 8 kinds of mode of operations of table 1 program control test box
The course of work of the CAN bus test device that the present embodiment provides is as follows:
After device powers on, Test Host 21, according to the Power supply situation of CAN equipment under test 13, is configured programmable power supply 35 automatically, makes programmable power supply 35 export the needed voltage of CAN equipment under test 13.Test Host 21 carries out initial configuration to CAN main control equipment 12, then starts CAN main control equipment 12, sends CAN signal to CAN equipment under test by CAN main control equipment 12.Test Host 21 is controlled successively program control test box 31 by single-chip microcomputer 42 and is operated under 8 kinds of different working modes, and Test Host 21 is controlled oscillograph 14 and is captured successively program control test box 31 and be operated in the waveform of CAN signal under these 8 kinds of different working modes by switch 32, and generate 8 waveform recording files according to these 8 kinds of waveforms, and by these 8 waveform recording files respectively with Test Host in reference waveform contrast, if all consistent, judge that CAN equipment under test 13 meets standardization requirement, can be in vehicle CAN network, otherwise, judge that CAN equipment under test 13 does not meet standardization requirement, cannot be used for vehicle CAN network.Test Host 21 generates test report according to judged result, and controls printer 33 these test report of output.
In the present embodiment, power control box 34 is mainly made up of power switch and air-break, and wherein power switch is mainly used in controlling provides or deenergization to this CAN bus automatic test device.Air-break is selected Snyder EA9RN2C6330C type vacuum circuit breaker, short-circuit protection, open circuit protection can be provided, possess isolation and quick-make function, rated current 6-63A, breaking capacity 6KA.
In the present embodiment, programmable power supply 35 is specifically as follows German EA direct supply EA-PS8040-120, input voltage range be AC90V to AC264V, cover voltage range wide, and with active PFC.Output voltage be DC0V to DC40V, output current is that 0A is to 80A.Current track industry CAN controller power supply used used is mostly DC24V, and the DC24V power-supply fluctuation scope DC16.8V that therefore this programmable power supply can be contained EN50155 regulation is to DC32V, so can well meet the power supply requirement of this device.
In the present embodiment, Test Host 21 is specifically as follows DELL OPTIPLEX780, this machine has abundant external interface, if any 8 USB mouths, a RS232 mouth, an Ethernet interface, have PCI socket can expanding universal interface bus (General Purpose Interface Bus is called for short GPIB) card simultaneously.For example can be at the 82350B type PCI-GPIB of the built-in Agilent company of the U.S. of Test Host card, Test Host 21 is directly controlled the work of programmable power supply EA-PS8040-120 by gpib interface.
In the present embodiment, CAN main control equipment 12 is specifically as follows the CANoe a by name of Vector Informatik company, is specifically designed to the testing tool of CAN bus analysis and emulation, by USB interface and Test Host 21 communications.In Test Host 21, drive CANoe to carry out transmitting-receiving and the CAN bus management function of CAN network message by com component.
In the present embodiment, CAN equipment under test 13 is generally third-party CAN equipment, is this equipment power supply by programmable power supply 35, and the CANH of this equipment CAN bus is connected with CANL with the CANH of CAN main control equipment 12 through program control test box 31 respectively with CANL.
In the present embodiment, switch 32 is specifically as follows TL-SF1016D16 mouth 100,000,000 non-administrator switches of TP-LINK company, is mainly used in the same networks of equipment access such as Test Host 21, printer 33, oscillograph 14.TL-SF1016D16 mouth 100,000,000 non-administrator switches are two layer of 100,000,000 non-network management Ethernet switch products of desktop type of TP-LINK company exploitation, 16 10/100M self-adaptation RJ45 ports are provided, all of the port is all supported surface speed forwarding and MDI/MDIX automatic turning and duplex/speed auto-negotiation function, plug and play, without management.
In the present embodiment, printer 33 is specifically as follows the LaserJet Pro400M401N black and white network laser printer of company of Hewlett-Packard (HP).This printer supports A4 breadth to promise, therefore this printer can meet the needs of this CAN bus test device output A4 breadth test report.
In the present embodiment, the DPO3034 that oscillograph 14 is specifically as follows Imtech is oscillograph, by Ethernet interface by Test Host 21 control work, its key property is as follows: 500MHz, 300MHz and 100MHz bandwidth, 4 passages, sampling rate in all analog channels is up to 2.5GS/s, and the record length on all passages is 5,000,000 points, shows that speed is 50000 waveform/seconds.229 millimeters (9 inches), 800*480 resolution, WVGA color monitor.
The CAN bus test device that the present embodiment provides, automatically control CAN main control equipment by Test Host and send or receive CAN signal, control oscillograph and automatically the waveform of CAN signal under program control test box 31 different operating states is sent to Test Host, whether Test Host meets standardization requirement according to the waveform automatic decision CAN equipment under test receiving, realize automatic testing process, thereby accuracy and the testing efficiency of test result are improved, and by program control test box 31, CAN signal is applied to interference, make test more comprehensively, further improve the accuracy of test result.Automatically generate test report by Test Host, and by this test report of printer output, avoided manually writing the problems such as the inconsistency that test report brings.Can be to the CAN equipment power supply of different electric pressures by programmable power supply.
Finally it should be noted that: above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of the each embodiment technical scheme of the utility model.
Claims (7)
1. a controller area network bus test device, is characterized in that, comprising: supply module, CAN main control equipment, CAN equipment under test, Test Host and oscillograph, wherein:
Described supply module is electrically connected with described CAN main control equipment, described CAN equipment under test, described Test Host and described oscillograph respectively, described Test Host is electrically connected with described CAN main control equipment and described oscillograph respectively, described CAN main control equipment is electrically connected by CAN bus with described CAN equipment under test, and described oscillograph is electrically connected with described CAN bus;
Described supply module, is used to described CAN main control equipment, described CAN equipment under test, described Test Host and described oscillograph that working power is provided;
Described CAN main control equipment, for sending CAN signal to described CAN equipment under test or receiving the CAN signal that described CAN equipment under test sends under the control of described Test Host;
Described CAN equipment under test, for sending CAN signal to described CAN main control equipment or receiving the CAN signal that described CAN main control equipment sends;
Described oscillograph for showing the waveform of the CAN signal that described CAN main control equipment or described CAN equipment under test send, and is sent to described Test Host by described waveform under the control of described Test Host;
Described Test Host, sends or receives CAN signal for controlling described CAN main control equipment, controls described oscillograph and sends described waveform, and judge according to the described waveform receiving whether described CAN equipment under test meets standardization requirement.
2. device according to claim 1, is characterized in that, also comprises: program control test box;
Described program control test box is electrically connected by described CAN bus with described CAN main control equipment and described CAN equipment under test respectively, and described program control test box is electrically connected with described supply module and described Test Host respectively;
Described program control test box, for disturbing the CAN signal of described CAN main control equipment or the transmission of described CAN equipment under test under the control of described Test Host;
Described supply module also for: for described program control test box provides working power.
3. device according to claim 2, is characterized in that, also comprises: switch;
Described switch is electrically connected with described supply module, described Test Host and described oscillograph respectively;
Described switch, the control signal sending for receiving described Test Host, and described control signal is sent to described oscillograph, to control described oscillograph, described waveform is sent to described Test Host by described switch;
Described supply module also for: for described switch provides working power.
4. device according to claim 3, is characterized in that, also comprises: printer;
Described printer is electrically connected with described supply module and described switch respectively;
Described Test Host also for: generate test report according to the described waveform receiving, and control described printer and print described test report;
Described printer, for printing described test report under the control of described Test Host;
Described supply module also for: for described printer provides working power.
5. device according to claim 4, is characterized in that, described supply module comprises: power control box and programmable power supply;
Described power control box is electrically connected with described programmable power supply, described Test Host, described switch, described printer and described oscillograph respectively, and described programmable power supply is electrically connected with described Test Host, described CAN main control equipment, described program control test box and described CAN equipment under test respectively;
Described power control box, is used to described programmable power supply, described Test Host, described switch, described printer and described oscillograph that working power is provided;
Described programmable power supply, under the control of described Test Host for described CAN main control equipment, described program control test box and described CAN equipment under test provide working power.
6. device according to claim 5, it is characterized in that, described Test Host is electrically connected with described programmable power supply by general purpose interface bus GPIB, be electrically connected with described CAN main control equipment by general-purpose serial bus USB, be electrically connected with described switch by Ethernet, be electrically connected with described program control test box by general-purpose interface RS-232.
7. device according to claim 6, is characterized in that, described program control test box comprises: voltage transformation module, single-chip microcomputer and relay matrix;
Described voltage transformation module is electrically connected with described programmable power supply, described single-chip microcomputer and described relay matrix respectively, described single-chip microcomputer is electrically connected with described Test Host and described relay matrix respectively, and described relay matrix is electrically connected by described CAN bus with described CAN main control equipment and described CAN equipment under test respectively;
Described voltage transformation module, for the voltage of described programmable power supply input is transformed, thinks that described single-chip microcomputer and described relay matrix provide working power;
Described single-chip microcomputer, for control the on off state of described each relay of relay matrix under the control of described Test Host, to form the interference of the CAN signal to described CAN main control equipment or the transmission of described CAN equipment under test.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320782653.0U CN203643829U (en) | 2013-11-28 | 2013-11-28 | Controller area network (CAN) bus testing device |
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| CN201320782653.0U CN203643829U (en) | 2013-11-28 | 2013-11-28 | Controller area network (CAN) bus testing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104298224A (en) * | 2014-09-12 | 2015-01-21 | 中国第一汽车股份有限公司 | Automatic vehicle-mounted electronic control unit CAN bus communication testing device and system |
| CN104678984A (en) * | 2013-11-28 | 2015-06-03 | 北车大连电力牵引研发中心有限公司 | Controller area network (CAN) bus testing device |
| CN105262645A (en) * | 2015-11-05 | 2016-01-20 | 株洲南车时代电气股份有限公司 | TCN train communication network analysis device and method |
| CN108873868A (en) * | 2018-07-27 | 2018-11-23 | 中国核动力研究设计院 | Npp safety grade DCS console module automatic test device |
| CN111813072A (en) * | 2020-06-11 | 2020-10-23 | 中车唐山机车车辆有限公司 | Detection system for input and output functions of electronic equipment |
| CN112000079A (en) * | 2020-08-19 | 2020-11-27 | 北京电子工程总体研究所 | CAN bus node simulation equipment, system and fault simulation method |
| CN114563651A (en) * | 2022-04-28 | 2022-05-31 | 深圳市星卡科技有限公司 | Method, device and equipment for testing automobile by using oscilloscope and storage medium |
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2013
- 2013-11-28 CN CN201320782653.0U patent/CN203643829U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678984A (en) * | 2013-11-28 | 2015-06-03 | 北车大连电力牵引研发中心有限公司 | Controller area network (CAN) bus testing device |
| CN104678984B (en) * | 2013-11-28 | 2018-01-09 | 中车大连电力牵引研发中心有限公司 | Controller area network bus test device |
| CN104298224A (en) * | 2014-09-12 | 2015-01-21 | 中国第一汽车股份有限公司 | Automatic vehicle-mounted electronic control unit CAN bus communication testing device and system |
| CN105262645A (en) * | 2015-11-05 | 2016-01-20 | 株洲南车时代电气股份有限公司 | TCN train communication network analysis device and method |
| CN108873868A (en) * | 2018-07-27 | 2018-11-23 | 中国核动力研究设计院 | Npp safety grade DCS console module automatic test device |
| CN111813072A (en) * | 2020-06-11 | 2020-10-23 | 中车唐山机车车辆有限公司 | Detection system for input and output functions of electronic equipment |
| CN112000079A (en) * | 2020-08-19 | 2020-11-27 | 北京电子工程总体研究所 | CAN bus node simulation equipment, system and fault simulation method |
| CN112000079B (en) * | 2020-08-19 | 2021-12-07 | 北京电子工程总体研究所 | CAN bus node simulation equipment, system and fault simulation method |
| CN114563651A (en) * | 2022-04-28 | 2022-05-31 | 深圳市星卡科技有限公司 | Method, device and equipment for testing automobile by using oscilloscope and storage medium |
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Address after: 116045 Liaoning province Dalian City Lushun Economic Development Zone Dalian Hao Yang No. 1 North Street Patentee after: CRRC DALIAN ELECTRIC TRACTION R & D CENTER CO., LTD. Address before: 116045 Liaoning province Dalian City Lushun Economic Development Zone Dalian Hao Yang No. 1 North Street Patentee before: Co., Ltd of Bei Che Dalian Electric Traction R & D Center |