CN205157693U - Aviation socket signal line serial number detection device - Google Patents

Abstract

The utility model discloses a detection device for the signal line number of an aviation socket, wherein the device includes a microprocessor, and a bus extension unit and a line detection unit both connected with the microprocessor; the bus extension unit includes a plurality of aviation sockets /head, the tested aviation plug/seat is connected with the bus expansion unit through the multiple aviation sockets/heads; the tested aviation socket/head is also connected with the microprocessor through the line detection unit; the device also includes a keyboard; through the keyboard Input the type or number of core wires of the tested aviation socket/head, the microprocessor sends out the inspection signal and identifies the signal line number of the tested aviation socket/head according to the feedback signal of the tested aviation socket/head. The utility model can realize the detection of multiple aviation sockets/heads.

Description

Aviation socket signal line number detection device

technical field

The utility model relates to signal line detection, in particular to an aviation socket signal line number detection device.

Background technique

Aviation sockets are widely used in various electrical circuits and play the role of connecting or disconnecting circuits. However, due to the wide variety of aviation plugs, especially with the increase in the number of signal lines, it brings great difficulties to the detection of aviation plugs, welding and identification of signal line numbers. The traditional detection method is to use a multimeter to detect both ends of the aviation plugs one by one. On and off, this operation is very troublesome, and it is easy to make mistakes.

Utility model content

The technical problem to be solved by the utility model is to provide a detection device that can detect the signal line numbers of multiple aviation sockets/heads at the same time for the defect that only a single aviation socket can be detected each time in the prior art.

The technical scheme that the utility model solves its technical problem adopts is:

Provided is a detection device for signal line numbers of aviation sockets, the device includes a microprocessor, and a bus expansion unit and a line detection unit both connected to the microprocessor;

The bus extension unit includes a plurality of aviation sockets/heads, and the measured aviation plug/seat is connected to the bus extension unit through the plurality of aviation sockets/heads;

The tested aviation socket/head is also connected with the microprocessor through the line detection unit;

The device also includes a keyboard;

Input the type or number of core wires of the tested aviation socket/head through the keyboard, and the microprocessor sends out the inspection signal and identifies the signal line number of the tested aviation socket/head according to the feedback signal of the tested aviation socket/head.

In the device described in the utility model, the device also includes a display or a speech synthesis reporting unit. After the microprocessor recognizes the signal line number of the tested aviation socket/head, the signal line number is displayed through the display, or the signal line number is displayed through the speech synthesis. The reporting unit broadcasts the signal line number.

In the device described in the utility model, the bus extension unit includes a multi-port decoder circuit implemented by a programmable logic device.

In the device described in the utility model, the line detection unit includes a wiring board, and the core wire of the tested aviation socket/head is placed on the wiring board surface;

A first insulator support rod is fixed under the junction board, a first metal shrapnel is arranged at the bottom of the first insulation support rod, a second insulator support rod is arranged under the junction board, and a second metal shrapnel is arranged at the top of the second insulator support rod , a spring is also provided under the wiring board, one end of the spring is connected to the bottom of the wiring board or the first insulator support rod, and the other end is connected to the second insulator support rod;

The first metal shrapnel, the second metal shrapnel and the bottom of the spring are all connected to the wiring switch of the line detection unit through wires; The second metal shrapnel contacts.

The utility model also provides an automatic identification method for the serial number of the aviation socket signal line based on the above-mentioned device, and the method includes the following steps:

Input the type or core wire number of the tested aviation socket/head through the keyboard;

The tested aviation socket/head is connected with the microprocessor through the bus expansion unit;

The first port of the microprocessor changes from low level to high level, triggering the microprocessor to send a patrol signal, starting the internal timer, every time the timer arrives, the internal accumulator accumulates once, and the value of the accumulator is transmitted to The bus expansion unit, the bus expansion unit decodes the value of the accumulator, so that the core wire number signal line corresponding to the tested aviation socket/head is low level, and the low level signal passes through the tested aviation socket/head and is fed back to The second port of the microprocessor, when the second port detects a low level, the microprocessor stops counting, and the value of the storage accumulator is the core wire number;

If the value of the internal accumulator of the microprocessor is greater than the number of core wires of the tested aviation socket/head, and the second port still does not detect the feedback low-level signal, there is an open circuit of the core wire;

If the core wire number of the tested aviation socket/head is the same as the detected core wire record number, there is a core wire short circuit.

In the method described in the utility model, the method also includes the steps:

The recognized signal line number is displayed on the display, or the recognized signal line number is played through speech synthesis.

Beneficial effects of the utility model: the utility model can realize the detection of signal line numbers of multiple aviation sockets/heads through the bus extension unit and the line detection unit.

Further, through the conductive wiring board, as long as the core wire of the aviation socket/head to be tested is placed on the wiring board, the detection can be turned on, which is convenient and quick.

Further, the detection result can be broadcast directly through the speech synthesis reporting unit.

Furthermore, the bus extension unit can be realized by a programmable logic device, and by modifying its structure, it is suitable for aerial plug detection with different numbers of core wires, and will also be suitable for aerial plug detection with a larger number of core wires in the future, with stronger adaptability.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a schematic structural view of a signal line number detection device for an aviation socket according to an embodiment of the present invention;

Fig. 2 is the flowchart of the automatic identification method of the aviation socket signal line numbering of the utility model embodiment;

Fig. 3 is a schematic diagram of a wiring switch according to an embodiment of the utility model.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The automatic identification device of the aviation socket signal line number of the utility model embodiment, as shown in Figure 1, comprises a microprocessor, and the bus expansion unit and the circuit detection unit that are all connected with this microprocessor;

The bus extension unit includes a plurality of aviation sockets/heads, and the tested aviation plug/seat is connected to the bus extension unit through the plurality of aviation sockets/heads;

The tested aviation socket/head is also connected to the line detection unit through a wiring switch;

The device also includes a keyboard;

Input the type or number of core wires of the tested aviation socket/head through the keyboard, and the microprocessor sends out the inspection signal and identifies the signal line number of the tested aviation socket/head according to the feedback signal of the tested aviation socket/head.

The device also includes a display or a voice synthesis reporting unit. After the microprocessor recognizes the signal line number of the tested aviation socket/head, the signal line number is displayed through the display, or the signal line number is played through the voice synthesis reporting unit.

In the embodiment of the utility model, the bus expansion unit includes a multi-port decoder circuit implemented by a programmable logic device.

Further, in an embodiment of the present utility model, as shown in FIG. 3 , the line detection unit includes a wiring board 31 , and the core wire of the aviation socket/head to be tested is placed on the wiring board surface. The terminal pad may be conductive and may be part of a terminal switch (b).

A first insulator support rod 36 is fixed below the wiring board 31, and a first metal shrapnel 33 is provided at the bottom of the first insulating support rod 36. A second insulator support rod 35 is also provided below the connection board 31. The second insulator support rod 35 The top is provided with a second metal shrapnel 34, and a spring 32 is also provided below the wiring board 31. One end of the spring 32 is connected to the bottom of the wiring board 31 or the first insulator support rod 36, and the other end is connected to the second insulator support rod 35;

The first metal dome 33 , the second metal dome 34 and the bottom of the spring 32 are all connected to the wiring switch of the line detection unit through wires; the wiring switch includes four signal lines a, b, c and d. When the core wire of the tested aviation plug/seat of the wiring switch is placed on the wiring board, the spring 32 is compressed, and the first metal dome 33 and the second metal dome 34 are in contact.

Input the model (or the number of core wires M) of the detected aviation plug with the keyboard. When the core wire of the detected aviation plug is connected to the wiring switch, the signal lines b and d of the wiring switch are connected, and at the same time, the signal line of the wiring switch is connected due to pressure. A and c are connected, the microprocessor B port gets from low level to high level, triggers the microprocessor to start detection, starts the internal timer, every time the timer arrives, the internal accumulator accumulates once, and the value of the accumulator is transmitted For the aviation socket expansion system, the value of the accumulator is decoded inside the aviation socket expansion system, so that the corresponding core wire number signal line is low level, and the low level signal is fed back to the microprocessor port through the tested aviation socket a. When the port A detects a low level, the microprocessor stops counting, stores the value of the accumulator as the core wire number, and at the same time the liquid crystal displays the number, and broadcasts the core wire number through the speech synthesis unit.

When the core wire of the tested aviation plug leaves the wiring switch, the microprocessor will clear the internal accumulator, and count the core wire numbers at the same time to judge whether the tested aviation plug core wire has been tested. If the detection is not completed, the voice prompts the operator to continue the operation detection; if the detection is completed, the voice broadcasts the detection completion.

When the detection is in progress, if the value of the internal accumulator of the microprocessor is greater than the total number of core wires of the tested aviation plug, and the feedback low-level signal is still not detected, the voice prompts "the core wire is open, please check".

When the test is in progress, if the number of the core wire of the aerial plug under test is the same as the record number of the core wire that has been detected before, the voice prompts "this core wire is short-circuited with the ** pin, please check".

Due to the limited number of ports of the microprocessor, the value of the accumulator inside the microprocessor is output to the port, and after bus expansion, the corresponding decoding lines with different values are obtained. Therefore, the maximum number of core wires supported by the aviation socket in theory reaches 2 ¹⁶ (A 16-bit accumulator can be used). Taking the 8-bit accumulator as an example, it supports 256-core aviation insertion detection, which can be described in VHDL and realized by programmable logic devices.

The automatic identification method of the aviation socket signal line numbering of the utility model embodiment, as shown in Figure 2, comprises the following steps:

The processor starts to work and waits for the preset number of core wires. When the predetermined number of core wires is input, the stored code can be called to modify the internal structure of the bus-extended programmable logic device; after the detection is completed, the detection work can be started through voice prompts.

When the operator does not operate, the wiring switch is empty, the signal lines a, c, b, and d are all open, the port A of the microprocessor is at high level, and the port B is at low level.

When the operator puts the core wire of the aerial plug under test on the wiring board, the spring 32 is compressed due to the action of gravity, so that the two shrapnels come into contact to form a passage. The signal line a is connected to c, the signal line b is connected to d, the microprocessor port B changes from low level to high level, the internal counter is started to count, the value of the counter is output to the bus expansion unit, and decoded by the bus expansion unit, Make the core wire corresponding to the counter output be low level, and the other outputs be high level.

If there is no fault in the line, the core wire of the detected aviation plug will always have a corresponding value during the counting process of the counter from 1 to M, so that the currently detected core wire is at a low level, so that the port A is at a low level , when the port A is low, the counter stops counting, the microprocessor stores the number, the display shows the value of the counter as the number of the core wire, and reports the number of the currently detected core wire through the synthesized voice of the stored voice and number, At the same time, the counter is cleared to indicate the next core wire detection.

If the count value of the counter is output, port A is high level, indicating that the current counter value is not the number of the core wire to be detected, and the counter continues to count until port A is low level, and record the number.

During the detection process, the core wire number of each detection needs to be judged to be unique. If it is repeated with the number stored in the previous detection, it means that the core wire has a short circuit and prompts to check for faults;

If during the detection process, if the value of the counter is greater than the predetermined number of core wires M, and the low level of port A is still not detected, then it is judged that the currently detected core wire is in an open circuit state, and a check is prompted.

To sum up, the utility model uses a conductive terminal board, so that as long as the core wire of the aviation socket/head to be tested is placed on the terminal board, it can be connected and detected, which is convenient and quick. The bus expansion unit is suitable for aerial plug detection with different numbers of core wires, and will also be suitable for aerial plug detection with a larger number of core wires in the future, with stronger adaptability.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present utility model.

Claims (4)

1. a pick-up unit for aviation socket signal wire numbering, it is characterized in that, this device comprises microprocessor, and the bus extension unit be all connected with this microprocessor and wireline inspection unit;

This bus extension unit comprises multiple aviation socket/head, and tested aviation plug/seat is connected with described bus extension unit by the plurality of aviation socket/head;

Tested aviation socket/head is also connected with microprocessor by wireline inspection unit;

This device also comprises keyboard;

By model or the heart yearn number of the tested aviation socket/head of input through keyboard, microprocessor sends patrols and examines signal and numbers according to the signal wire of the tested aviation socket/head of the feedback signal identification of tested aviation socket/head.

2. device according to claim 1, it is characterized in that, this device also comprises display or phonetic synthesis report unit, after microprocessor identifies the signal wire numbering of tested aviation socket/head, show this signal wire numbering by display, or play this signal wire numbering by phonetic synthesis report unit.

3. device according to claim 1, is characterized in that, described bus extension unit comprises the multiport decoder circuit that programmable logic device (PLD) realizes.

4. device according to claim 1, is characterized in that, described wireline inspection unit comprises patching panel, and the heart yearn of tested aviation socket/head is placed in this wiring card;

The first dielectric support bar is fixed below patching panel, the first metal clips is provided with bottom this first insulating support rod, the second dielectric support bar is also provided with below this patching panel, this the second dielectric support masthead portion is provided with the second metal clips, also spring is provided with below this patching panel, one end of this spring with bottom patching panel or the first dielectric support bar be connected, the other end is connected with the second dielectric support bar;

The bottom of the first metal clips, the second metal clips and spring is all connected by the pull-switch of wire with wireline inspection unit; When the heart yearn of tested aviation plug/seat is placed on patching panel, spring is compressed, and the first metal clips contacts with the second metal clips.