Master computer module interface test equipment
By integrating signal simulation equipment and interface adapters into a main computer module interface testing device, the problem of separate testing in the design verification and production inspection stages of existing equipment has been solved, realizing portable integrated testing and meeting multiple interface testing requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-03-27
AI Technical Summary
Existing single-board testing equipment requires separate testing during the design verification and production inspection stages of the tested components, and there is a lack of portable, integrated testing equipment.
A main computer module interface testing device was designed, including a signal simulation device, a matrix converter box and an interface adapter. It integrates PXI module components, power supply components and human-computer interaction modules, and provides a variety of interface testing functions to support unified testing in the design verification and production inspection stages.
It enables multiple tests of the main computer module interface to be performed on the same device, including power supply tests and internal bus interface tests, meeting the testing requirements of design and production inspection, and improving testing efficiency and portability.
Smart Images
Figure CN224052634U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to test technical field, concretely relates to a main computer module interface test equipment. BACKGROUND
[0002] When carrying out interface test of main computer module board card, the existing single board test equipment mostly only considers the test function of the design verification stage of the measured piece, and needs to build a test platform additionally in the production inspection stage, in order to adapt to the single board test demand in the design production, a set of portable integrated test equipment needs to be designed to complete the test of main computer module interface module board card. UTILITY MODEL CONTENTS
[0003] The utility model aims at overcoming the insufficient of prior art, and provides a main computer module interface test equipment.
[0004] The utility model aims at overcoming the insufficient of prior art, and provides a main computer module interface test equipment.
[0005] A main computer module interface test equipment, including signal simulation equipment, matrix conversion box and first interface adapter connected through test cable, the signal simulation equipment includes case and function module, and the first interface adapter includes signal adapter and UUT interface support;
[0006] The function module is located in the case, and includes PXI module assembly, and the PXI module assembly includes PXI controller, Ethernet module, HDLC module, Haversine code communication module, RS422 time mark module, serial communication module and PXI oscilloscope installed on the PXI backplane;
[0007] The PXI controller controls and manages the rest PXI module assembly through software, the Ethernet module provides 5-way Ethernet interface, the HDLC module provides 2-way HDLC signal interface, the Haversine code communication module provides 2-way Haversine code signal interface, the RS422 time mark module provides 1-way time mark signal interface, the serial communication module provides 2-way RS422 and 1-way RS232 signal interface, and the PXI oscilloscope provides voltage waveform monitoring of the output signal of the test piece.
[0008] Still include the second interface adapter same with the first interface adapter in composition and frame, and be used for the production inspection test stage of main computer module, and optionally connect the signal simulation equipment.
[0009] Further, the signal simulation equipment still includes human-computer interaction module located outside the case, including display, mouse and keyboard, is connected with the PXI controller, provides human-computer interaction interface for operating personnel.
[0010] Further, the PXI module assembly further comprises a multiple selection and one switch module connected with the PXI oscilloscope, the multiple selection and one switch module is used for switching the monitoring signal of the PXI oscilloscope, and meanwhile provides a power off identification signal for the functional module.
[0011] Further, the signal simulation device further comprises an interface module, the interface module comprises a program control interface and a signal interface, the program control interface is used for connecting the first interface adapter and the PXI controller to complete data interaction, and the signal interface is connected with the Ethernet module, the HDLC module, the Huffman code communication module, the RS422 time mark module, the serial port communication module, the PXI oscilloscope and the multiple selection and one switch module.
[0012] Further, the functional module further comprises a power supply assembly, the power supply assembly is used for supplying power for the PXI module assembly, when the power supply assembly is external, a 64-channel discrete quantity IO module is adopted, and when the power supply assembly is internal, an 8-channel 5A switch module is adopted.
[0013] Further, the PXI module assembly further comprises a power supply control module, the power supply control module provides a control signal for the output of the power supply assembly.
[0014] Further, the PXI module assembly further comprises a power supply monitoring module, a multiple-channel parallel acquisition module is adopted to monitor the power voltage and current output to the UUT and the secondary power voltage of the test piece.
[0015] Further, the signal adapter of the first interface adapter further comprises an acquisition circuit, a primary voltage and current conditioning circuit, a secondary voltage conditioning circuit and a power supply control circuit, and provides control and secondary voltage regulation functions for the power supply of the UUT.
[0016] The utility model discloses a beneficial effect is:
[0017] The device provides a test station for the test piece, and the interface test of the main computer module can be completed on the designed integrated single board test device, and the test functions include power supply test, internal bus interface test, Ethernet interface test, RS-422 interface test, HDLC interface test, Huffman code interface test, RS-232 interface test, HB6096 interface test, time mark (RS-422) interface test, time mark (pulse) interface test, real-time clock interface test, power off interruption test, Flash interface test and start time test. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The utility model discloses a main computer module interface test device composition connection block diagram;
[0019] Figure 2 The utility model discloses a signal simulation device function block diagram;
[0020] Figure 3 The main computer module signal simulation device internal connection schematic diagram is shown in Fig. 1.
[0021] Figure 4 The first interface adapter internal function block diagram is shown in Fig. 2.
[0022] Figure 5 The first interface adapter excitation signal function block diagram is shown in Fig. 3. DETAILED DESCRIPTION
[0023] The technical solutions of the utility model will be described clearly and completely in combination with embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, but not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0024] Referring to Figures 1-5 , the utility model provides a technical scheme:
[0025] A main computer module interface test device, like Figure 1 , comprises a signal simulation device, a matrix conversion box and a first interface adapter connected through a test cable, the signal simulation device comprises a case and a function module, the first interface adapter comprises a signal adapter and a UUT interface support, the function module is located inside the case and comprises a PXI module assembly, the PXI module assembly comprises a PXI controller, an Ethernet module, an HDLC module, a Haversine communication module, an RS422 time mark module, a serial communication module and a PXI oscilloscope installed on a PXI backplane, and the function block diagram of the signal simulation device is shown in Fig. 2. Figure 2
[0026] The PXI controller controls and manages the rest of the PXI module assembly through software, the Ethernet module provides 5 Ethernet interfaces, the HDLC module provides 2 HDLC signal interfaces, the Haversine communication module provides 2 Haversine signal interfaces, the RS422 time mark module provides 1 time mark signal interface, the serial communication module provides 2 RS422 and 1 RS232 signal interfaces, and the PXI oscilloscope provides voltage waveform monitoring of the output signal of the test piece.
[0027] The PXI controller selects a PXI-2010 module, and the main functions are: a) control, management and scheduling of normal operation of each PXI module; b) execution of test procedures; c) providing 1 LAN interface, 1 RS232 interface and 2 USB interfaces.
[0028] Ethernet module selects PXI-4095 type, provides 5-way Ethernet interface for test process, and its network rate can reach 10 / 100 / 1000Mbps; HDLC module specifically adopts 4-channel HDLC communication module with PXI-4038 type, provides 2-way HDLC interface for test process, and transmission rate is 1.8Mbps, 4.8Mbps, 6Mbps adjustable.
[0029] Huff code communication module adopts 4-channel Huff code communication module with PXI-4023 type, provides 2-way bidirectional Huff code interface for test process, conforms to ARINC717 bus specification, and sending and receiving code rate can be set to the following gears through software: 384 bits / s, 768 bits / s, 1536 bits / s, 3072 bits / s, 6144 bits / s, 12288 bits / s, 24576 bits / s, 49152 bits / s.
[0030] RS422 time mark module adopts 2-channel RS422 time mark module with PXI-4094 type, provides 1-way time mark coding interface for test process, and its coding meets IRIG-B format. Serial communication module adopts 16-channel serial communication module with PXI-4032 type.
[0031] PXI oscilloscope is PXI-5122 type, and main functions include: a) monitoring RS-232 transmission waveform voltage; b) calculating waveform rising and falling time through collected voltage waveform; c) calculating high level time through IO voltage model monitoring. Main performance indexes of PXI oscilloscope include:
[0032] Channel number 2;
[0033] Resolution 14;
[0034] Voltage range: -10V to +10V;
[0035] Input impedance: 1MΩ, 50Ω;
[0036] Bandwidth: 100MHz;
[0037] Maximum sampling rate: 2.0GS / s;
[0038] Mechanical property: 3U, 1Slot wide;
[0039] Drive support: win 7 32 / 64.
[0040] The internal signal connection schematic diagram of signal simulation equipment is shown in Figure 3 The functions of each module in PXI module assembly are summarized in Table 1 as follows:
[0041]
[0042] Further, as Figure 2 The signal simulation device further comprises a man-machine interaction module outside the case, including a display, a mouse and a keyboard, connected with the PXI controller, to provide a man-machine interaction interface for an operator.
[0043] Further, the PXI module assembly further comprises a multiple-to-one switch module connected with the PXI oscilloscope, which is used to switch the monitoring signal of the PXI oscilloscope, and also provides a power-off identification signal for the functional module.
[0044] Further, as Figure 2 The signal simulation device further comprises an interface module, including a program control interface and a signal interface, the program control interface is used to connect the first interface adapter and the PXI controller to complete data interaction, and the signal interface is connected with an Ethernet module, an HDLC module, a Huffman code communication module, an RS422 time mark module, a serial port communication module, the PXI oscilloscope and the multiple-to-one switch module.
[0045] In the embodiment, the functional module further comprises a power supply assembly, which is used to supply power for the PXI module assembly, when the power supply assembly is external, a 64-channel discrete IO module is adopted, and when the power supply assembly is internal, an 8-channel 5A switch module is adopted. The PXI module assembly further comprises a power supply control module, which outputs a control signal for the power supply assembly. The PXI module assembly further comprises a power supply monitoring module, which adopts a multi-channel parallel acquisition module to monitor the power voltage and current output to the UUT and the secondary power voltage of the test piece.
[0046] In the embodiment, as Figure 4 The signal adapter of the first interface adapter further comprises an acquisition circuit, a primary voltage and current conditioning circuit, a secondary voltage conditioning circuit and a power supply control circuit, to provide control and secondary voltage regulation functions for the power supply of the UUT. The first interface adapter is used in the design verification test stage of the host computer module, and a functional block diagram of the first interface adapter of the host computer module is as shown in Figure 4 The signal simulation device provides the following signal interfaces in cooperation with the first interface adapter:
[0047] A power supply is provided to supply power and monitor the output signal interface;
[0048] One secondary power voltage input interface of the test piece is provided;
[0049] One interface adapter remote control communication interface (LAN) is provided;
[0050] Five gigabit Ethernet signal input interfaces are provided;
[0051] Two RS422 signal interfaces are provided;
[0052] provides 1 RS232 signal interface;
[0053] provides 2 HDLC signal interface;
[0054] provides 2 bidirectional half code signal interface;
[0055] provides 1 power-off IO signal interface;
[0056] provides 1 3.7V power supply interface;
[0057] provides 1 set of time mark pulse signal interface;
[0058] provides 1 power-on start identification signal interface.
[0059] the first interface adapter and the signal simulation device Figure 5 .
[0060] In some embodiments, the utility model still includes the second interface adapter that constitutes and frame are same with first interface adapter, be used for the production inspection test stage of host computer module interface, can select the signal simulation device. The internal function block diagram of second interface adapter is similar, compared with first interface adapter, reduce the secondary power voltage input interface of test piece, the rest function composition and frame are same with first interface adapter.
[0061] The above only is the preferred implementation mode of the utility model, should understand the utility model is not limited to the form disclosed in this paper, should not be regarded as the exclusion of other embodiments, and can be used in various other combinations, modification and environment, and can be in the range of the concept described in this paper, by the above teaching or related field's technology or knowledge carries out the change of the utility model spirit and range, then all should be in the protection scope of the claims of the utility model attached.
Claims
1. A main computer module interface test equipment, comprising a signal simulation device, a matrix converter box and a first interface adapter connected by a test cable, the signal simulation device comprising a chassis and a functional module, the first interface adapter comprising a signal adapter and a UUT interface support, characterized in that: the functional module is located inside the chassis and comprises a PXI module assembly, the PXI module assembly comprising a PXI controller mounted on a PXI backplane, an Ethernet module, an HDLC module, a Half Code communication module, an RS422 time mark module, a serial communication module and a PXI oscilloscope; the PXI controller controls and manages the rest of the PXI module assembly through software, the Ethernet module provides 5 Ethernet interfaces, the HDLC module provides 2 HDLC signal interfaces, the Half Code communication module provides 2 Half Code signal interfaces, the RS422 time mark module provides 1 time mark signal interface, the serial communication module provides 2 RS422 and 1 RS232 signal interfaces, and the PXI oscilloscope provides voltage waveform monitoring of the output signal of the test piece; the second interface adapter which has the same composition and frame as the first interface adapter is further included, and is used for the production inspection test stage of the main computer module interface, and can be optionally connected with the signal simulation device; the signal simulation device further comprises a man-machine interaction module located outside the chassis, comprising a display, a mouse and a keyboard, connected with the PXI controller to provide a man-machine interaction interface for the operator; the PXI module assembly further comprises a multiple-to-one switch module connected with the PXI oscilloscope, the multiple-to-one switch module being used for switching the monitoring signal of the PXI oscilloscope, and also providing a power failure identification signal for the functional module; the signal simulation device further comprises an interface module comprising a program control interface and a signal interface, the program control interface being used for connecting the first interface adapter and the PXI controller to complete data interaction, and the signal interface connecting the Ethernet module, the HDLC module, the Half Code communication module, the RS422 time mark module, the serial communication module, the PXI oscilloscope and the multiple-to-one switch module; the functional module further comprises a power supply assembly, the power supply assembly being used for supplying power to the PXI module assembly, the power supply assembly being externally connected with a 64-channel discrete IO module when external, and being internally connected with an 8-channel 5A switch module when internal; the PXI module assembly further comprises a power control module, which outputs a control signal for the power supply assembly; the PXI module assembly further comprises a power monitoring module, which adopts a multi-channel parallel acquisition module to monitor the output power voltage and current to the UUT and the secondary power voltage of the test piece; and the signal adapter of the first interface adapter further comprises an acquisition circuit, a primary voltage and current conditioning circuit, a secondary voltage conditioning circuit and a power supply control circuit, which provide control and secondary voltage regulation functions for the power supply of the UUT. 2. A host computer module interface test apparatus according to claim 1, wherein: 3. A host computer module interface test apparatus according to claim 1, wherein: 4. A host computer module interface test apparatus according to claim 3, wherein: 5. A host computer module interface test apparatus according to claim 1, wherein: 6. A host computer module interface test apparatus according to claim 5, wherein: 7. A host computer module interface test apparatus according to claim 1, wherein: 8. A host computer module interface test apparatus according to claim 1, wherein: