CN219104964U

CN219104964U - Interface class sensor test machine

Info

Publication number: CN219104964U
Application number: CN202222674726.6U
Authority: CN
Inventors: 张姝瑶; 赵林; 张志远; 牛姝晨
Original assignee: Shaanxi Langcheng Zhongke Technology Development Co ltd
Current assignee: Shaanxi Langcheng Zhongke Technology Development Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-05-30
Anticipated expiration: 2032-10-11

Abstract

The utility model belongs to the technical field of sensor testing, and discloses an interface sensor testing machine, wherein three channels are formed in one side of a box body, each channel is physically isolated, each channel of the three channels is respectively provided with 3 connectors, a 1394 connector, a 128-core system maintenance connector and a power connector. Each channel comprises 15 paths of receiving and transmitting of RS422 buses, 12 paths of discrete measuring board input processing, 12 paths of discrete measuring board output processing, 1 path (3 ports) 1394 bus RN node communication and a debugging test interface. The interface sensor tester also comprises a portable reinforced notebook, a disconnected board card box, a maintenance upgrading box, a direct current power supply and a cable. The utility model has the advantages that the three channels are arranged, each channel is physically isolated, and the plurality of connection functions are arranged in each channel for connection, so that the connection is convenient, and the same connection can realize a plurality of functions.

Description

Interface class sensor test machine

Technical Field

The utility model belongs to the technical field of sensor testing, and particularly relates to an interface type sensor testing machine.

Background

Currently, a Sensor Interface Unit (SIU) provides a capability of accessing an onboard 1394 bus for a front-end flight sensor of a flight tube/flight control system, the SIU collects data (supporting RS422, discrete measuring boards and the like) of the front-end flight sensor, packages the data into 1394 data packets, sends the 1394 data packets to an aircraft management computer (VMC) through the 1394 bus, receives the 1394 bus data of the VMC, and distributes the 1394 data packets to corresponding front-end flight sensor equipment through data unpacking.

However, the existing equipment detection interface has single function, and the detection interface can only perform single detection, so that the data line connection is very complex, and the later maintenance and detection are very difficult.

Through the above analysis, the problems and defects existing in the prior art are as follows: the existing equipment detection interface has single function, and the detection interface can only perform single detection; the data line connection is very complex, and is very difficult in later maintenance and detection.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides an interface type sensor testing machine.

The utility model is realized in that an interface sensor tester is provided with:

a case;

three passageways have been seted up to box one side, physical isolation between every passageway, every passageway of three passageway is equipped with 3 connectors respectively, and the connector includes: 1394 connector, maintenance connector and power connector.

The 1394 connector includes a first 1394 connector, a second 1394 connector, and a third 1394 connector, and the maintenance connector includes: a first service connector and a second service connector, the service connectors for a 128-core system, the power connector comprising: a first power connector, a second power connector and a third power connector.

Further, each channel comprises 15 paths of receiving and transmitting of RS422 buses, 12 paths of discrete measuring board input processing, 12 paths of discrete measuring board output processing, 1 path (3 port) 1394 bus RN node communication and a debugging test interface.

Further, the sensor interface unit interfaces with an external device: and the aircraft front end sensor equipment such as a flight tube computer, a navigation attitude, inertial navigation, an altimeter and the like are crosslinked with the ground maintenance equipment.

The utility model also comprises a portable reinforced notebook, a disconnected board card box, a maintenance upgrade box, a direct current power supply and a cable.

The notebook computer can be debugged through interaction between a debugging port of the RS422 bus and a tested sensor; and when the application test is normally operated, the notebook computer is connected with the 1394 bus of the tested sensor by controlling the 1394 bus on the disconnection box to interact with the tested sensor, so that the functional application test of the tested sensor is completed. The communication between the notebook and the disconnection box must be guaranteed to be not lost and not be in error.

The disconnection board card box comprises a 1394 bus controller, an RS422 board card and a discrete measuring board, wherein the connection board card box comprises necessary discrete measuring board (5 VTTL) output test disconnection points, and signal receiving and transmitting are completed, and all signals except 1394 signals and maintenance and debugging signals are disconnected test points.

The maintenance upgrading box completes the maintenance upgrading function of the tested sensor, and because the three channels of the tested sensor are independent, the maintenance box only aims at a single channel and comprises necessary serial ports, state discrete measuring plates, reset and discrete measuring plate test signals.

The tested sensor can be debugged by communicating with a PC through an RS422 serial port, and the PC can also control the tested sensor through a 1394 port to perform functional test.

The standard power supply of a single measured sensor is 3 redundancy 28V, the voltage range is 16V-34V, and the working current of the single measured sensor is not more than 6A.

In combination with the above technical solution and the technical problems to be solved, please analyze the following aspects to provide the following advantages and positive effects:

first, aiming at the technical problems in the prior art and the difficulty in solving the problems, the technical problems solved by the technical proposal of the utility model are analyzed in detail and deeply by tightly combining the technical proposal to be protected, the results and data in the research and development process, and the like, and some technical effects brought after the problems are solved have creative technical effects. The specific description is as follows:

according to the interface type sensor testing machine, three channels are arranged, each channel is physically isolated, and the plurality of connection functions are arranged in each channel to be connected, so that the connection is convenient, and the same connection can realize a plurality of functions.

Secondly, the technical scheme is regarded as a whole or from the perspective of the sensor to be tested, and the technical scheme to be protected has the following technical effects and advantages:

the interface sensor testing machine provided by the embodiment of the utility model is used for debugging, testing and acceptance links, and simultaneously provides support for maintenance and the like of a tested sensor.

Drawings

FIG. 1 is a schematic diagram of an interface sensor tester according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a cross-linking relationship provided in an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a test apparatus according to an embodiment of the present utility model;

in the figure: 1. a case; 2. a first connector; 3. a second connector; 4. a third connector; 5. a fourth connector; 6. a fifth connector; 7. a sixth connector; 8. a seventh connector; 9. an eighth connector; 10. a ninth connector; 11. a sensor to be measured; 12. a connector; 13. 1394 bus; 14. a maintenance area; 15. debugging a serial port; 16. a discrete measuring plate; 17. RS422 region; 18. a connector region; 19. a notebook.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

1. The embodiments are explained. In order to fully understand how the utility model may be embodied by those skilled in the art, this section is an illustrative embodiment in which the claims are presented for purposes of illustration.

As shown in fig. 1 to 3, an interface sensor tester according to an embodiment of the present utility model includes: three channels are formed in one side of the box body 1, each channel is physically isolated, each channel of the three channels is provided with 3 connectors 12, namely a first connector 2, a second connector 3, a third connector 4, a fourth connector 5, a fifth connector 6, a sixth connector 7, a seventh connector 8, an eighth connector 9 and a ninth connector 10.

The connector 12 includes: 1394 connector, maintenance connector and power connector.

Each channel comprises 15 paths of receiving and transmitting of RS422 buses, 12 paths of input processing of the

discrete measuring board

16, 12 paths of output processing of the discrete measuring board 16, communication of RN nodes of 1 path (3 port) 1394 buses 13 and a debugging test interface.

Sensor interface unit and external device: and the aircraft front end sensor equipment such as a flight tube computer, a navigation attitude, inertial navigation, an altimeter and the like are crosslinked with the ground maintenance equipment.

The utility model also comprises a portable reinforced notebook 19, a disconnected board card box, a maintenance upgrade box, a direct current power supply and cables.

The notebook 19 can be debugged through interaction between a debugging port of the RS422 bus and the tested sensor 11; during normal operation application test, the notebook 19 is connected with the 1394 bus 13 of the tested sensor 11 by controlling the 1394 bus 13 on the disconnection box to interact with the tested sensor 11, so as to complete the functional application test of the tested sensor 11. The communication between the notebook 19 and the disconnect box must be guaranteed to be no lost or no error.

The disconnection board card box comprises a controller of the 1394 bus 13, an RS422 board card and a discrete measuring board 16, wherein the discrete measuring board 16 (5 VTTL) outputs test disconnection points, and signal receiving and transmitting are completed, and all signals except 1394 signals and maintenance and debugging signals are disconnected test points. The maintenance upgrading box completes the maintenance upgrading function of the tested sensor 11, and because the three channels of the tested sensor 11 are independent, the maintenance box only performs aiming at a single channel, and comprises a necessary serial port, a state discrete measuring board 16 and reset and discrete measuring board 16 test signals. The tested sensor 11 can be communicated with a PC through an RS422 serial port to debug the tested sensor 11, and the PC can also control the tested sensor 11 through a 1394 port to perform functional test. The standard power supply of the single tested sensor 11 is 3 redundancy 28V, the voltage range is 16V-34V, and the working current of the single tested sensor 11 does not exceed 6A.

2. Application example. In order to prove the inventive and technical value of the technical solution of the utility model, this section is an application example of the claim technical solution to the specific sensor under test or to the related technology.

When the interface type sensor testing machine is used, the power connector area 18 is connected with the power connector of the tested sensor 11 to supply power to the tested sensor 11, the connector 12 is connected with 128 cores (containing maintenance signals) of the connector 12 of the tested sensor 11, and then the 1394 bus 13 connection area provides a 1394 bus 13 testing function of the tested sensor 11. The 1394 bus 13 is connected with the connector 12 of the 1394 bus 13 of the sensor 11 to be tested by a cable, and the other end is divided into 3 ports which are respectively connected with the test equipment. The system signal and the maintenance signal of the tested sensor 11 are 128 cores, the maintenance 422 is led out of the DB9 mother head on the system test bench, and a debugger can be connected with a PC through the MOXA box to debug the tested sensor 11. The maintenance area 14 also has associated test switching and test points. The discrete measuring plate 16 area comprises 12 paths of discrete measuring plate 16 input disconnection points, 8 paths of 15V/ground discrete measuring plate 16 output disconnection points and 4 paths of discrete measuring plate 16 output disconnection points; the RS422 bus area comprises 15 paths of receiving and transmitting RS422 disconnection points; only the on-board system signals are contained, and the connector 12 is only connected with signals with the maintenance functions removed from the 128 cores, so that the transfer between the tested sensor 11 and the on-board cable is facilitated, and the on-board test is facilitated. The strip requires a TBD.

The interface type sensor testing machine provided by the embodiment of the utility model is applied to the requirements of sensor interface unit debugging, testing and acceptance.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model will be apparent to those skilled in the art within the scope of the present utility model.

Claims

1. An interface class sensor testing machine, characterized in that the interface class sensor testing machine is provided with:

a case;

three passageways have been seted up to box one side, physical isolation between every passageway, every passageway of three passageway is equipped with 3 connectors respectively, and the connector includes: 1394 connector, maintenance connector and power connector;

2. The interface class sensor tester of claim 1, wherein each channel includes 15 transceivers of RS422 buses, 12 discrete board input processing, 12 discrete board output processing, 1 1394 bus RN node communication, and a debug test interface.

3. The interface class sensor testing machine of claim 1, further comprising a portable ruggedized notebook, a disconnect board box, a maintenance upgrade case, a direct current power supply, and cables.

4. The interface type sensor tester according to claim 3, wherein the notebook computer is connected with the sensor to be tested in an interactive way through a debugging port of an RS422 bus; the notebook computer is connected with the 1394 bus of the detected sensor through controlling the 1394 bus on the disconnected box.

5. The interface class sensor tester of claim 3, wherein the disconnect board box comprises a 1394 bus controller, an RS422 board, and a discrete board, and comprises a discrete board output test disconnect point for receiving and transmitting signals.

6. The interface class sensor tester of claim 3, wherein the maintenance upgrade box comprises serial ports, state discrete plates, reset and discrete plate test signals; the tested sensor is communicated with the PC through the RS422 serial port to carry out tested sensor debugging, the PC also controls the tested sensor through the 1394 port, the standard power supply of the single tested sensor is 28V with 3 redundancy, the voltage range is 16V-34V, and the working current of the single tested sensor is not more than 6A.