CN216117817U - Portable vehicle-mounted comprehensive testing device - Google Patents
Portable vehicle-mounted comprehensive testing device Download PDFInfo
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- CN216117817U CN216117817U CN202120258706.3U CN202120258706U CN216117817U CN 216117817 U CN216117817 U CN 216117817U CN 202120258706 U CN202120258706 U CN 202120258706U CN 216117817 U CN216117817 U CN 216117817U
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Abstract
The utility model relates to a portable vehicle-mounted comprehensive testing device which comprises a portable testing case, wherein a testing interface used for being connected with tested equipment is arranged on the portable testing case, a controller, a power supply, a CAN communication module, a serial port communication module, a switching value module and a data acquisition module are arranged in the portable testing case, one end of the CAN communication module and one end of the serial port communication module are connected with the controller through a PXI bus, the other end of the CAN communication module and the other end of the serial port communication module are connected with the testing interface, one end of the data acquisition module is connected with the controller through the PXI bus, the other end of the data acquisition module is connected with the testing interface, the switching value module is connected with the controller through the PXI bus, and the controller is used for outputting a control signal to the switching value module and realizing signal switching between the tested equipment and the testing device. The testing device can be used for comprehensively detecting electronic equipment such as a vehicle-mounted system and the like, and can effectively improve the detection efficiency of the equipment.
Description
Technical Field
The utility model relates to a testing device, in particular to a portable vehicle-mounted comprehensive testing device.
Background
With the rapid development of electronic and information technologies, the equipment architecture is increasingly complicated, and the testing, diagnosis and maintenance of the equipment are also increasingly complicated, so people put higher demands on the testing device of the equipment.
The existing testing device is single in function, multiple testing devices are often required to be combined for use when the equipment is comprehensively tested, the size is large, and great inconvenience is brought to use in occasions with high requirements on mobility and testing environment. The existing testing device generally corresponds to equipment, is not reusable, does not have reconfigurability, and causes great resource waste.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a portable vehicle-mounted comprehensive testing device which can be used for comprehensively detecting electronic equipment such as a vehicle-mounted system and has high portability.
The technical scheme of the utility model is realized as follows: the utility model discloses a portable vehicle-mounted comprehensive testing device which comprises a portable testing case, wherein a testing interface used for being connected with tested equipment is arranged on the portable testing case, a controller, a power supply, a communication module, a switching value module and a data acquisition module are arranged in the portable testing case, the power supply is used for supplying power to the whole device, one end of the communication module is connected with the controller through a PXI bus, the other end of the communication module is connected with the testing interface and used for receiving, transmitting and monitoring bus data of the tested equipment, one end of the data acquisition module is connected with the controller through the PXI bus, the other end of the data acquisition module is connected with the testing interface, the switching value module is connected with the controller through the PXI bus, and the switching value module is used for realizing signal switching between the tested equipment and the testing device.
Furthermore, a PXI backboard is arranged in the portable test case and used for installing a PXI bus interface board card, and an interface for plugging the PXI bus interface board card is arranged on the PXI backboard; the communication module, the switching value module and the data acquisition module are all installed on the PXI backboard and are respectively and electrically connected with the PXI bus interface board card.
Furthermore, a conversion combination module is arranged in the portable testing machine case, a plurality of testing interfaces used for being connected with different tested devices are arranged on the portable testing machine case, and the communication module and the data acquisition module are connected with the corresponding testing interfaces through the conversion combination module.
Furthermore, the communication module comprises a CAN communication module and a serial port communication module, one end of the CAN communication module is connected with the controller through a PXI bus, the other end of the CAN communication module is connected with the test interface and used for receiving, transmitting and monitoring CAN bus data of the equipment to be tested, one end of the serial port communication module is connected with the controller through the PXI bus, and the other end of the serial port communication module is connected with the test interface and used for receiving, transmitting and monitoring serial port bus data of the equipment to be tested.
Furthermore, a load simulation module is further arranged in the portable testing machine case, the load simulation module is connected with the testing interface, is used for being connected with the tested equipment and is used for simulating load internal resistance, and the input end of the data acquisition module is connected with the load simulation module and is used for acquiring the voltage value of the resistance of the load simulation module.
Furthermore, the load simulation module includes at least one resistor, one end of the resistor is grounded, the other end of the resistor is connected to the first interface J1 and the second interface J2, the first interface J1 is connected to the test interface, the second interface J2 is connected to the input end of the data acquisition module, and the output end of the data acquisition module is connected to the controller through the PXI bus.
Furthermore, an external mains supply input interface is further arranged on the portable testing case, the power supply is connected with the external mains supply input interface, the power supply is used for converting mains supply input into voltage required by the device and supplying power to the whole device, the power supply comprises a switch power supply, a battery and a battery management module, the input end of the switch power supply is connected with the external mains supply input interface, the output end of the switch power supply is connected with the battery management module, and the battery management module is connected with the battery and each voltage output end; the battery management module is connected with the controller and used for transmitting the battery power information to the controller, and the controller outputs the battery power information to the display screen for displaying.
And a power switch is arranged between the input end of the switching power supply and the external commercial power input interface. And a starting switch is also arranged on the portable testing machine case.
Furthermore, a video acquisition module and a video conversion module are arranged in the portable testing machine case, the output end of the video acquisition module is connected with the controller through a PXI bus, a 1-path PAL format single-ended signal interface of the video acquisition module is connected to the output end of the video conversion module and used for acquiring converted single-ended PAL signals, other signal interfaces are connected with the testing interface through a switching combination module, the video acquisition module is used for acquiring video signals output by tested equipment, the input end of the video conversion module is connected with the testing interface through the switching combination module and used for converting differential video signals output by the tested equipment into single-ended signals which can be acquired by a video acquisition card.
Furthermore, the portable vehicle-mounted comprehensive testing device also comprises a display screen, wherein the display screen is electrically connected with the controller; the display screen is fixed on the display screen fixing frame, and the display screen fixing frame is hinged with the upper end of the portable testing machine case.
Further, the portable vehicle-mounted comprehensive testing device further comprises a keyboard, and the keyboard is electrically connected with the controller.
The keyboard is arranged on the upper end surface of the portable testing case.
The switching value module comprises a multi-path relay and a relay driving circuit, wherein the input end of the relay driving circuit is connected with the controller through a PXI bus, the output end of the relay driving circuit is respectively connected with the multi-path relay and used for respectively controlling the on-off of the multi-path relay, and the multi-path relay is respectively connected in series with a plurality of circuits of the test interface and used for respectively controlling the on-off of the plurality of circuits of the test interface.
The utility model has at least the following beneficial effects:
because this portable on-vehicle integrated test device includes portable test machine case, be equipped with controller, power, CAN communication module, serial communication module, switching value module, data acquisition module in the portable test machine case, CAN communication module, serial communication module, switching value module, data acquisition module are connected with the controller electricity through PXI bus interface integrated circuit board respectively, PXI backplate fixed mounting is in the main tank for installation PXI interface integrated circuit board, CAN install corresponding integrated circuit board according to the test requirement of difference, realize testing arrangement and upgrade and extension.
The portable testing machine is internally provided with a conversion combination module, the portable testing machine is provided with a plurality of testing interfaces which are respectively connected with different tested devices, and the CAN communication module, the serial port communication module, the switching value module and the data acquisition module are connected with the corresponding testing interfaces through the conversion combination module, so that the testing device CAN be connected with a plurality of corresponding devices, and the cost is greatly saved.
In a word, the testing device can be used for comprehensively detecting electronic equipment such as a vehicle-mounted system and the like, is high in portability, and can effectively improve the detection efficiency of the equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic block diagram of a portable vehicle-mounted integrated test device provided in an embodiment of the present invention;
FIG. 2 is a block diagram of a power supply provided by an embodiment of the utility model;
fig. 3 is a circuit diagram of a video conversion circuit according to an embodiment of the present invention;
FIG. 4 is a circuit diagram of a load simulation module according to an embodiment of the present invention;
FIG. 5-1 is a circuit diagram of a portion of a battery management module according to an embodiment of the present invention;
fig. 5-2 is another circuit diagram of a portion of a battery management module according to an embodiment of the present invention;
FIG. 6 is a circuit diagram of a switch amount module according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a portable vehicle-mounted comprehensive testing device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, an embodiment of the present invention provides a portable vehicle-mounted integrated test apparatus, including a portable test case, where the portable test case is provided with a test interface for connecting with a device under test, the portable test case is provided with a controller, a power supply, a CAN communication module, a serial communication module, a switching value module, and a data acquisition module, where the power supply is used to supply power to the entire apparatus, one end of the CAN communication module is connected with the controller through a PXI bus, the other end of the CAN communication module is connected with the test interface and is used to receive, transmit, and monitor CAN bus data of the device under test, one end of the serial communication module is connected with the controller through a PXI bus, the other end of the serial communication module is connected with the test interface and is used to receive, transmit, and monitor serial bus data of the device under test, and one end of the data acquisition module is connected with the controller through a PXI bus, the other end of the data acquisition module is connected with the test interface, the switching value module is connected with the controller through a PXI bus, and the controller is used for outputting control signals to the switching value module and realizing signal switching between the tested equipment and the test device, so that the tested equipment is tested, detected and diagnosed in fault. The tested device is connected with the testing device through the testing cable. The CAN communication module, the serial port communication module, the switching value module and the data acquisition module are connected with the controller based on the PXI bus, the modules are firmly and reliably installed, and the follow-up expansion is easy.
The embedded controller is a core module of the testing device, integrates 2 paths of LAN ports and 3 paths of USB 3.0, is installed on a PXI backboard, and has the main tasks of running testing system software, processing PXI bus data and inputting data by an external interface of the main controller.
Furthermore, a PXI backboard is arranged in the portable test case and used for installing a PXI bus interface board card, and an interface for plugging the PXI bus interface board card is arranged on the PXI backboard; the CAN communication module, the serial port communication module, the switching value module and the data acquisition module are all installed on the PXI backboard, and the CAN communication module, the serial port communication module, the switching value module and the data acquisition module are respectively and electrically connected with the PXI bus interface board card. The PXI backboard is fixedly installed in the main box body and used for installing the PXI interface board card, the corresponding board card can be installed according to different test requirements, upgrading and expansion of the test device are achieved, the PXI board cards selected by the device are all industrial-grade goods shelf products, and the device is low in price and stable in performance.
Furthermore, a conversion combination module is arranged in the portable testing machine case, a plurality of testing interfaces used for being connected with different tested devices are arranged on the portable testing machine case, and the CAN communication module, the serial port communication module, the switching value module and the data acquisition module are connected with the corresponding testing interfaces through the conversion combination module. The conversion combination module has the function of recombining signals of each module (such as a CAN communication module, a serial communication module, a switching value module and a data acquisition module) to each test interface.
Furthermore, an external mains supply input interface is further arranged on the portable testing case, the power supply is connected with the external mains supply input interface, the power supply is used for converting mains supply input into voltage required by the device and supplying power to the whole device, the power supply comprises a switch power supply, a battery and a battery management module, the input end of the switch power supply is connected with the external mains supply input interface, the output end of the switch power supply is connected with the battery management module, and the battery management module is connected with the battery and each voltage output end; the battery management module is connected with the controller and used for transmitting the battery power information to the controller, and the controller outputs the battery power information to the display screen for displaying.
The testing device has 2 power supply modes: the power supply is supplied by a 220VAC power supply input through an external commercial power input interface such as an AC power aviation plug or a lithium battery arranged in the testing device. The built-in lithium cell of testing arrangement charge-discharge management system, when the testing arrangement had external power supply input, lithium cell management system can carry out intelligent charging to the lithium cell package, and when external power supply input disconnection, lithium cell management system can automatic switch to the lithium cell power supply.
And a power switch is arranged between the input end of the switching power supply and the external commercial power input interface. And a starting switch is also arranged on the portable testing machine case.
Furthermore, the portable testing machine case is in an upturning structure form, the upturning part is a display screen, and the lower part is a main box body. Adopt almag material, consolidate compact design form, the effectual weight and the volume that reduce testing arrangement. The computer case is integrated with a PXI backboard, a display screen, a waterproof silica gel keyboard (comprising a mouse touch pad), a cooling fan, an AC power aviation plug, an AC power switch, a controller host switch button and the like. The display screen is arranged at the upturning position, the keyboard is arranged on the upper surface of the main box body, and the display screen and the keyboard are interconnected with the embedded controller through cables and used for man-machine interaction and data display. The heat dissipation fan, the AC power aviation plug, the AC power switch and the switch button are fixedly installed on the side face of the box body, the heat dissipation fan is used for dissipating heat for the testing device, the AC power aviation plug is an external mains supply input interface, the AC power switch is used for switching on and off mains supply input, and the embedded controller switch button is used for controlling the host to be started and shut down.
The portable vehicle-mounted comprehensive testing device also comprises a display screen 2, wherein the display screen is electrically connected with the controller; the display screen is fixed on the display screen fixing frame, and the display screen fixing frame is hinged with the upper end of the portable testing machine case 1.
Further, the portable vehicle-mounted comprehensive testing device further comprises a keyboard 3, and the keyboard is electrically connected with the controller.
The keyboard is arranged on the upper end surface of the portable testing case.
Furthermore, the CAN communication module is a 2-channel electrical completely-isolated CAN channel, the module is installed on a PXI backboard, one end of the module is connected with the embedded controller through a PXI bus, the other end of the module leads a communication interface to an aviation plug on the back of the main box body through a switching combined module, the CAN bus data of the tested device CAN be received, transmitted and monitored, the testing device CAN also simulate an equipment subsystem based on the CAN bus through software, the CAN communication module is connected to a CAN communication network of the tested equipment through the CAN module, and the equipment subsystem as the tested equipment participates in debugging work of the equipment.
Furthermore, the serial port communication module is 8 paths of completely electrically isolated serial port channels, three states of RS422, RS485 and RS232 can be configured, the module is arranged on a PXI backboard, one end of the module is connected with the embedded controller through a PXI bus, and the other end of the module leads the communication interface to the communication aviation plug on the back of the main box body through the switching combined module. The module can receive, transmit and monitor serial port bus data of the tested device, when monitoring serial port data of the tested device, 2 paths of serial ports can be used for monitoring 1 path of serial ports of the tested device, 1 path of serial ports of the serial port communication module receives data transmitted by a serial port of the tested device, and the other 1 path of serial ports receives data received by the serial port of the tested device. The test device can also simulate an equipment subsystem based on a serial port bus through software, is connected to a serial port communication network of the equipment to be tested through a serial port module, and is used as the subsystem of the equipment to be tested to participate in the debugging work of the equipment.
Furthermore, the switching value module comprises a multi-path relay and a relay driving circuit, wherein the input end of the relay driving circuit is connected with the controller through a PXI bus, the output end of the relay driving circuit is respectively connected with the multi-path relay and used for respectively controlling the on-off of the multi-path relay, and the multi-path relay is respectively connected in series on a plurality of lines of the test interface and used for respectively controlling the on-off of the plurality of lines of the test interface.
The switching value module is 16 paths of photoelectric isolation digital value inputs and 16 paths of relay outputs, the module is installed on a PXI backboard, and the switching value module is connected with the embedded controller through a PXI bus. The main function is signal switching between the tested device and the testing device, thereby realizing the testing, detection and fault diagnosis of the tested object.
The data acquisition module of this embodiment is 32 single-end AD inputs, 2 way DA analog output, 24 way DIO, and this module is installed on PXI backplate, and one end is connected with embedded controller through the PX bus, and the other end draws 10 way AD input interfaces to load simulation module through switching composite module, and the surplus interface is drawn to main box back aviation plug. The data acquisition module adopts the existing module.
Furthermore, a load simulation module is further arranged in the portable testing machine case, the load simulation module is connected with the testing interface, is used for being connected with the tested equipment and is used for simulating load internal resistance, and the input end of the data acquisition module is connected with the load simulation module and is used for acquiring the voltage value of the resistance of the load simulation module.
Further, the load simulation module comprises at least one high-power resistor, one end of the high-power resistor is grounded, the other end of the high-power resistor is connected with a first interface J1 and a second interface J2, the first interface J1 is connected with the test interface, the second interface J2 is connected with the input end of the data acquisition module, and the output end of the data acquisition module is respectively connected with the controller through a PXI bus. The load simulation module is used for simulating load internal resistance and is arranged in the main box body of the testing device. The load simulation module has 2 interfaces (J1, J2) outward, and J2 interface connection data acquisition module, J1 interface lead to on the main tank back communication aviation plug through switching composite module interface for connect the equipment that awaits measuring, be used for the simulated load. The voltage value of the power resistor is acquired through the data acquisition card, so that the driving current of the equipment to be tested is calculated (for example, whether the ignition current of the ignition control device meets the design requirement or not can be measured). The testing device can also be used as a simulation load of the transmitting and controlling device, can acquire, analyze and transmit and control ignition signals and time sequences in real time, detects the working state of the system in advance and reduces the test risk.
Furthermore, a video acquisition module and a video conversion module are arranged in the portable testing machine case, the output end of the video acquisition module is connected with the controller through a PXI bus, a 1-path PAL format single-ended signal interface of the video acquisition module is connected to the output end of the video conversion module and used for acquiring converted single-ended PAL signals, other signal interfaces are connected with the testing interface through a switching combination module, the video acquisition module is used for acquiring video signals output by tested equipment, the input end of the video conversion module is connected with the testing interface through the switching combination module and used for converting differential video signals output by the tested equipment into single-ended signals which can be acquired by a video acquisition card.
The video acquisition module not only supports digital signal DVI and HDMI high definition video, but also supports various analog video signals on the market, including RGB, NTSC/PAL, S-video, YPbPr and HDMI, and S/PDIF audio acquisition function, the module is installed on PXI backboard, one end is connected with embedded controller through PXI bus, 1-way PAL format single-ended signal interface is connected to video conversion module for collecting converted single-ended PAL signal, other signal interfaces are led to the main box back communication aviation plug through the switching combined module interface. The video acquisition module is used for acquiring the video signal output by the tested equipment.
The video conversion module is arranged in the main box body of the testing device, is powered by a built-in power supply and has the function of converting the differential video signal output by the tested equipment into a single-ended signal which can be collected by the video collection card.
The testing device can be used for comprehensively detecting electronic equipment such as a vehicle-mounted system and the like, and is high in portability and wide in application range.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a portable on-vehicle integrated test device which characterized in that: the portable testing machine comprises a portable testing machine case, wherein a testing interface used for being connected with tested equipment is arranged on the portable testing machine case, a controller, a power supply, a communication module, a switching value module and a data acquisition module are arranged in the portable testing machine case, the power supply is used for supplying power to the whole device, one end of the communication module is connected with the controller through a PXI bus, the other end of the communication module is connected with the testing interface and used for receiving, transmitting and monitoring bus data of the tested equipment, one end of the data acquisition module is connected with the controller through the PXI bus, the other end of the data acquisition module is connected with the testing interface, the switching value module is connected with the controller through the PXI bus, and the switching value module is used for realizing signal switching between the tested equipment and the testing device.
2. The portable vehicle-mounted comprehensive test device according to claim 1, characterized in that: the portable testing machine case is internally provided with a PXI backboard for installing a PXI bus interface board card, and the PXI backboard is provided with an interface for plugging the PXI bus interface board card; the communication module, the switching value module and the data acquisition module are all installed on the PXI backboard and are respectively and electrically connected with the PXI bus interface board card.
3. The portable vehicle-mounted comprehensive test device according to claim 1, characterized in that: the portable testing machine is characterized in that a conversion combined module is arranged in the portable testing machine case, a plurality of testing interfaces used for being connected with different tested devices are arranged on the portable testing machine case, and the communication module and the data acquisition module are connected with the corresponding testing interfaces through the conversion combined module.
4. A portable vehicle-mounted comprehensive test device according to any one of claims 1 to 3, characterized in that: the communication module comprises a CAN communication module and a serial port communication module, one end of the CAN communication module is connected with the controller through a PXI bus, the other end of the CAN communication module is connected with the test interface and used for receiving, transmitting and monitoring CAN bus data of the tested device, one end of the serial port communication module is connected with the controller through the PXI bus, and the other end of the serial port communication module is connected with the test interface and used for receiving, transmitting and monitoring serial port bus data of the tested device.
5. The portable vehicle-mounted comprehensive test device according to claim 1, characterized in that: the portable testing machine case is also internally provided with a load simulation module, the load simulation module is connected with the testing interface and used for being connected with tested equipment and simulating load internal resistance, and the input end of the data acquisition module is connected with the load simulation module and used for acquiring the voltage value of the resistance of the load simulation module.
6. The portable vehicle-mounted comprehensive test device according to claim 5, characterized in that: the load simulation module comprises at least one resistor, one end of the resistor is grounded, the other end of the resistor is connected with a first interface J1 and a second interface J2, the first interface J1 is connected with the test interface, the second interface J2 is connected with the input end of the data acquisition module, and the output end of the data acquisition module is respectively connected with the controller through a PXI bus.
7. The portable vehicle-mounted comprehensive test device according to claim 1, characterized in that: the portable testing machine case is also provided with an external commercial power input interface, the power supply is connected with the external commercial power input interface, the power supply is used for converting commercial power input into voltage required by the device and supplying power to the whole device, the power supply comprises a switch power supply, a battery and a battery management module, the input end of the switch power supply is connected with the external commercial power input interface, the output end of the switch power supply is connected with the battery management module, and the battery management module is connected with the battery and each voltage output end; the battery management module is connected with the controller and used for transmitting the battery power information to the controller, and the controller outputs the battery power information to the display screen for displaying.
8. The portable vehicle-mounted comprehensive test device according to claim 1, characterized in that: still be equipped with the video acquisition module in the portable test machine case, the video conversion module, the output of video acquisition module passes through PXI bus and is connected with the controller, the single-ended signal interface of 1 way PAL form of video acquisition module is connected to the output of video conversion module, be used for gathering the single-ended PAL signal after the conversion, other signal interface pass through switching composite module and test interface connection, the video acquisition module is used for gathering equipment under test output video signal, the input of video conversion module passes through switching composite module and test interface connection, be used for converting the differential video signal of equipment under test output into the single-ended signal that video capture card can gather.
9. The portable vehicle-mounted comprehensive test device according to claim 1, characterized in that: the display screen and the keyboard are electrically connected with the controller; the display screen is fixed on the display screen fixing frame, and the display screen fixing frame is hinged with the upper end of the portable testing machine case.
10. The portable vehicle-mounted comprehensive test device according to claim 1, characterized in that: the switching value module comprises a multi-path relay and a relay driving circuit, wherein the input end of the relay driving circuit is connected with the controller through a PXI bus, the output end of the relay driving circuit is respectively connected with the multi-path relay and used for respectively controlling the on-off of the multi-path relay, and the multi-path relay is respectively connected in series with a plurality of circuits of the test interface and used for respectively controlling the on-off of the plurality of circuits of the test interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120258706.3U CN216117817U (en) | 2021-01-29 | 2021-01-29 | Portable vehicle-mounted comprehensive testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120258706.3U CN216117817U (en) | 2021-01-29 | 2021-01-29 | Portable vehicle-mounted comprehensive testing device |
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| Publication Number | Publication Date |
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| CN216117817U true CN216117817U (en) | 2022-03-22 |
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| CN202120258706.3U Active CN216117817U (en) | 2021-01-29 | 2021-01-29 | Portable vehicle-mounted comprehensive testing device |
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- 2021-01-29 CN CN202120258706.3U patent/CN216117817U/en active Active
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