CN103235253A - Testing system on basis of CAN (Controller Area Network) buses - Google Patents
Testing system on basis of CAN (Controller Area Network) buses Download PDFInfo
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- CN103235253A CN103235253A CN201310139675XA CN201310139675A CN103235253A CN 103235253 A CN103235253 A CN 103235253A CN 201310139675X A CN201310139675X A CN 201310139675XA CN 201310139675 A CN201310139675 A CN 201310139675A CN 103235253 A CN103235253 A CN 103235253A
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Abstract
The invention belongs to the technical field of circuit board testing and discloses a testing system on the basis of CAN (Controller Area Network) buses. The testing system comprises a touch screen module, a main control module and a plurality of extension modules; the touch screen module is connected with the main control module by a communication port RS232 to carry out data interaction; and the main control module is connected with the extension modules by the CAN buses to carry out data interaction. According to the invention, a modular composition form is adopted; the main control module is used as the center and controls operating states of other extension modules. The system can be separated from a PC (Personal Computer) to operate, can be cut and spliced and is flexible to assemble; each module is connected by the CAN bus, connection is convenient to implement, the data transmission speed is high and data transmission is reliable.
Description
Technical field
The invention belongs to the circuit board detecting technical field, relate in particular to a kind of test macro based on the CAN bus.
Background technology
The circuit board testing system refers under the control of computing machine, the general designation of the type systematic that can finish record, measurement, data processing automatically, show or output test result.Circuit board testing is used for finishing the performance test to tested Pcb, according to the analysis of test result, also can be expanded into diagnostic system to Fault Diagnosis and location.Many characteristics such as the circuit board testing test macro has at a high speed, high precision, multi-functional, multiparameter and wide measurement range.Yet the most employing of existing circuit board testing system is the unit control model, has the defective that inconvenience was fixed and safeguarded to capacity.
Summary of the invention
In order to solve the problems of the technologies described above, the object of the present invention is to provide a kind of applied widely, have extensibility, interchangeability based on the test macro of CAN bus.
Complete skill scheme of the present invention is that a kind of test macro based on the CAN bus comprises a touch screen module, a main control module and some expansion modules.
Described touch screen module links to each other by RS232 with described main control module and carries out data interaction; Described main control module links to each other by the CAN bus with described expansion module and carries out data interaction.
Described touch screen module comprises a power port and a communication port, and described power port is used for powering, and described communication port is RS232, is used for communicating by letter with main control module.
Described main control module comprises power port, CAN port, RS232 port, SD draw-in groove, DIO port, and described power port is in order to give module for power supply; Described CAN port is used for communicating by letter with expansion module, and described RS232 port is used for communicating by letter with touch screen module; Described SD draw-in groove is placed the SD card, is used for storing testing procedure; Described DIO port is the Transistor-Transistor Logic level input/output port.
Described expansion module comprises power port, CAN port and expanded function district, and described power port is used for respectively powering and communicating by letter with the CAN port; Described expanded function district has different functions as required, and expanded function can be: DI(digital quantity input), the output of DO(digital quantity), the ADC(analog to digital conversion), the DAC(digital-to-analog conversion), the Relay(relay), 2W measure(two lines measure), 4W measure(four lines measure), printer, barcode scanner etc.
The present invention compared with prior art has following beneficial effect:
The invention provides a kind of test macro based on the CAN bus, adopt the modularization composition form, centered by main control module, the running status of other expansion modules of master control module controls.System can break away from the PC operation, but the cutting splicing, and assembling is flexibly; Each module uses the CAN bus to link to each other, and easy to connect, data transmission is reliable.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute to improper restriction of the present invention, in the accompanying drawings:
Fig. 1 is structural framing figure of the present invention.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Present embodiment provides a kind of test macro based on the CAN bus, as shown in Figure 1, comprises a touch screen module 1, main control module 2 and some expansion modules 3, and described touch screen module 1 links to each other by RS232 with described main control module 2 and carries out data interaction; Described main control module 2 links to each other by the CAN bus with described expansion module 3 and carries out data interaction.
Described touch screen module 1 comprises a power port 4 and a communication port 5, and described power port 4 is used for powering, and described communication port 5 is RS232, is used for communicating by letter with main control module 2.
Described main control module 2 comprises power port 6, CAN port 7, RS232 port 8, SD draw-in groove 9, DIO port one 0, and described power port 6 is in order to give module for power supply; Described CAN port 7 is used for communicating by letter with expansion module, and described RS232 port 8 is used for communicating by letter with touch screen module 1; Described SD draw-in groove 9 is placed the SD card, is used for storing testing procedure; Described DIO port one 0 is the Transistor-Transistor Logic level input/output port.
Described expansion module 3 comprises power port 11, CAN port one 2 and expanded function district 13, and described power port 11 is used for respectively powering and communicating by letter with CAN port one 2; Described expanded function district 13 has different functions as required, and expanded function can be: DI(digital quantity input), the output of DO(digital quantity), the ADC(analog to digital conversion), the DAC(digital-to-analog conversion), the Relay(relay), 2W measure(two lines measure), 4W measure(four lines measure), printer, barcode scanner etc.
The present invention adopts the modularization composition form, centered by main control module 2, and the running status of main control module 2 other expansion modules 3 of control.System can break away from the PC operation, but the cutting splicing, and assembling is flexibly; Each module uses the CAN bus to link to each other, and easy to connect, data transmission is reliable.
More than technical scheme that the embodiment of the invention is provided be described in detail, used specific case herein principle and the embodiment of the embodiment of the invention are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (4)
1. the test macro based on the CAN bus comprises a touch screen module, a main control module and some expansion modules, it is characterized in that: described touch screen module links to each other by RS232 with described main control module and carries out data interaction; Described main control module links to each other by the CAN bus with described expansion module and carries out data interaction.
2. a kind of test macro based on the CAN bus according to claim 1, it is characterized in that: described touch screen module comprises a power port and a communication port, and described power port is used for power supply, and described communication port is RS232, is used for communicating by letter with main control module.
3. according to claim 1 and the described a kind of test macro based on the CAN bus of claim 2, it is characterized in that: described main control module comprises power port, CAN port, RS232 port, SD draw-in groove, DIO port, and described power port is in order to give module for power supply; Described CAN port is used for communicating by letter with expansion module, and described RS232 port is used for communicating by letter with touch screen module; Described SD draw-in groove is placed the SD card, is used for storing testing procedure; Described DIO port is the Transistor-Transistor Logic level input/output port.
4. according to the described a kind of test macro based on the CAN bus of claim 1-3, it is characterized in that: described expansion module comprises power port, CAN port and expanded function district, and described power port is used for respectively powering and communicating by letter with the CAN port; Described expanded function district has different functions as required, and expanded function can be: DI(digital quantity input), the output of DO(digital quantity), the ADC(analog to digital conversion), the DAC(digital-to-analog conversion), the Relay(relay), 2W measure(two lines measure), 4W measure(four lines measure), printer, barcode scanner etc.
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CN201310139675XA CN103235253A (en) | 2013-04-22 | 2013-04-22 | Testing system on basis of CAN (Controller Area Network) buses |
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CN201310139675XA CN103235253A (en) | 2013-04-22 | 2013-04-22 | Testing system on basis of CAN (Controller Area Network) buses |
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Citations (6)
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WO2006083959A2 (en) * | 2005-02-01 | 2006-08-10 | Finisar Corporation | Network diagnostic system and methods for aggregated links |
CN201489086U (en) * | 2009-07-17 | 2010-05-26 | 中国人民解放军63908部队 | Universal testing system for digital circuit board |
CN201917643U (en) * | 2011-01-11 | 2011-08-03 | 启明信息技术股份有限公司 | Battery management system fault tolerance controller of electric automobile |
CN102522771A (en) * | 2011-12-14 | 2012-06-27 | 上海信元瑞电气有限公司 | Generator top layer monitoring device for dynamic simulation experiment of electric power system |
CN202661593U (en) * | 2012-04-16 | 2013-01-09 | 余丽华 | CAN bus aging test device |
CN203275589U (en) * | 2013-04-22 | 2013-11-06 | 南京同尔电子科技有限公司 | Test system based on CAN bus |
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2013
- 2013-04-22 CN CN201310139675XA patent/CN103235253A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006083959A2 (en) * | 2005-02-01 | 2006-08-10 | Finisar Corporation | Network diagnostic system and methods for aggregated links |
CN201489086U (en) * | 2009-07-17 | 2010-05-26 | 中国人民解放军63908部队 | Universal testing system for digital circuit board |
CN201917643U (en) * | 2011-01-11 | 2011-08-03 | 启明信息技术股份有限公司 | Battery management system fault tolerance controller of electric automobile |
CN102522771A (en) * | 2011-12-14 | 2012-06-27 | 上海信元瑞电气有限公司 | Generator top layer monitoring device for dynamic simulation experiment of electric power system |
CN202661593U (en) * | 2012-04-16 | 2013-01-09 | 余丽华 | CAN bus aging test device |
CN203275589U (en) * | 2013-04-22 | 2013-11-06 | 南京同尔电子科技有限公司 | Test system based on CAN bus |
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Application publication date: 20130807 |
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