Intelligent DB9 wire test tool

Abstract

The utility model relates to an intelligent DB9 wire test tool which comprises a signal transmitting end and a signal test end. The signal transmitting end comprises a first main control chip and first to ninth transmitting end test line pins which are respectively connected with the first main control chip and are used for sequentially transmitting different pulse signals; the signal testing end comprises a second main control chip and first to ninth testing end testing line pins which are respectively connected with the second main control chip and are used for sequentially receiving pulse signals; the signal test end further comprises a display used for displaying the line sequence of the test lines and a player used for playing communication interfaces suitable for the line sequence. And the display and the player are respectively connected with the second main control chip. According to the utility model, no cable professional knowledge needs are provided for testers, and the test can be completed by one person; the test result is visual, the synchronous voice playing is suitable for interface types and various different interface types, and the special interface types and the newly-added interface types can be adapted only by modifying configuration files.

Description

TECHNICAL FIELD

[0001] The utility model belongs to computer and communication technical field, and specifically relates to intelligent DB9 line test tool. BACKGROUND

[0002] DB9 line is a kind of 9-core communication line, is widely used in computer and communication field, and the internal line sequence is different for supporting different interfaces, to obtain the applicable communication interface, the line sequence needs to be detected.The traditional two-person cooperation uses multimeter to test DB9 line sequence, needs two people to communicate test method in advance, predicts the type of interface, uses paper and pen to record the test situation of each core wire, needs to refer to relevant data to judge interface type after testing, if the distance is far, still needs to place test auxiliary line and uses intercom to contact, long test preparation time, complex test process, difficult to guarantee accuracy, high personnel quality requirement, needs two people to cooperate, seriously reduces the labor efficiency. UTILITY MODEL CONTENT

[0003] The utility model discloses a kind of test results intuitive visual, voice synchronous play suitable communication interface type's split type intelligent DB9 line test tool.

[0004] To achieve the above object, the utility model provides intelligent DB9 line test tool, it is characterized in that, including signal sending end and signal test end;

[0005] The signal sending end includes the first main control chip and the 1-9th sending end test line pin respectively connected with the first main control chip, to send different pulse signals in sequence;

[0006] The signal test end includes the second main control chip and the 1-9th test end test line pin respectively connected with the second main control chip, to receive the pulse signal in sequence;

[0007] The signal test end further includes display for showing the line sequence of test line and player for playing the communication interface suitable for the line sequence;

[0008] The display and the player are connected with the second main control chip respectively.

[0009] First optocoupler, first light emitting diode and first unidirectional conducting element are connected between the above-mentioned first main control chip and any sending end test line pin respectively;

[0010] The first main control chip is connected with the signal input pin of the first optocoupler, to send pulse signal to the first optocoupler;

[0011] The first light emitting diode and the first unidirectional conducting element are connected in series between the first normally open pin and the first normally closed pin of the first photo-coupler, so as to receive the pulse signal amplified by the first photo-coupler.

[0012] The sending end test line pin is connected in series between the first light emitting diode and the first unidirectional conducting element.

[0013] The first photo-coupler is connected in parallel with a detection power supply circuit.

[0014] The second photo-coupler, the second light emitting diode and the backflow diode are connected between the second main control chip and any of the test line pins.

[0015] The second main control chip is connected with a signal output pin of the second photo-coupler, so as to receive the pulse signal and output the video signal and the audio signal of the line sequence to the display and the player according to the pulse signal.

[0016] The backflow diode and the light emitting element of the second photo-coupler are connected in reverse parallel at the input side of the second photo-coupler.

[0017] The second light emitting diode is connected in series between the backflow diode and the light emitting element.

[0018] The test line pin is connected in series between the second light emitting diode and the backflow diode through a current limiting resistor.

[0019] The second normally open pin of the second photo-coupler is grounded through a limiting resistor.

[0020] The utility model discloses the advantages are: the test person has no cable professional knowledge demand, and one person can complete the test, the whole test process can be completed in 10 to 15 seconds, and the test result is intuitive and visual, and the voice is played simultaneously with the applicable interface type, and is applicable to various different interface types, and only needs to modify the configuration file to adapt to the special interface type and the newly added interface type. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a signal sending end principle block diagram of an intelligent DB9 line test tool.

[0022] Figure 2 It is a signal test end principle block diagram of an intelligent DB9 line test tool.

[0023] Figure 3 It is a core parallel line test practical operation process diagram.

[0024] Figure 4 It is a core cross line test practical operation process diagram.

[0025] EXPLANATION OF REFERENCE NUMERALS:

[0026] 1, first optical coupling; 2, first light emitting diode; 3, first unidirectional conducting element; 4, second optical coupling; 5, second light emitting diode; 6, backflow diode; 7, current limiting resistor; 8, limiting resistor; 41, light emitting element. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical means and effects taken by the utility model to achieve the predetermined purpose, the specific implementation, structural features and effects of the utility model will be described in detail below in combination with the drawings and examples.

[0028] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0029] In the description of the utility model, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "aligned", "overlapped", "bottom", "inner", "outer" and the like are the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0030] The terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features; in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0031] The embodiment provides a kind of Figure 1 The intelligent DB9 line test tool shown has the advantages of intuitive visual test results, voice synchronous playing suitable communication interface type, no cable professional knowledge requirement for tester, single person can complete test;The whole test process can be completed in 10 to 15 seconds, and only needs to modify configuration file to adapt to special interface type, newly added interface type, with good applicability.

[0032] The split type intelligent DB9 line test tool includes signal sending end and signal testing end;Wherein, signal sending end includes Figure 1The first master chip and the 1st to 9th sending end test line pins connected with the first master chip respectively for sequentially sending different pulse signals are shown; and the signal test end comprises Figure 2 The second master chip and the 1st to 9th test end test line pins connected with the second master chip respectively for sequentially receiving the pulse signals are shown; more importantly, the signal test end further comprises a display for displaying the line sequence of the test line and a player for playing the communication interface applicable to the line sequence; wherein the display and the player are connected with the second master chip respectively.

[0033] See again Figure 1 The first light coupling 1, the first light emitting diode 2 and the first unidirectional conducting element 3 are connected between the first master chip and any sending end pin respectively; the signal input pin of the first light coupling 1 is connected with the first master chip for sending the pulse signal to the first light coupling 1; the first light emitting diode 2 and the first unidirectional conducting element 3 are connected in series between the first normally open pin and the first normally closed pin of the first light coupling 1 for receiving the pulse signal amplified by the first light coupling 1; the sending end pin is connected in series between the first light emitting diode 2 and the first unidirectional conducting element 3; and the first light coupling 1 is connected in parallel on the detection power supply circuit.

[0034] As can be seen, the pulse signal lead of the signal sending end master chip (i.e. the first master chip) of the split type intelligent DB9 line test tool, the first light coupling 1 and the sending end test line pin each have 9 (and each pulse signal lead, each first light coupling and each sending end test line pin constitute a group, and there are 9 groups in total), and since the working principles are consistent, the examples of the 3rd to 8th pulse signal leads, the first light couplings and the sending end test line pins are omitted here and in Figure 1

[0035] Now the working principle and process of the sending end master chip (i.e. the first master chip) will be described as follows:

[0036] The pulse signals are sequentially sent from the pulse signal lead 1 to the pulse signal lead 9, and at the same time, only one pulse signal lead has the pulse signal, and only the first normally open pin of one first light coupling is closed and the first normally closed pin is disconnected.

[0037] Figure 1 The guide leads in the first master chip are as follows:

[0038] The 1st guide lead is the pulse signal 1: sent to the light coupling 1 (1 light coupling in the first light coupling), and the light coupling 1 sends the detection voltage to the core wire (if there is a connected test end core wire) through the test line 1# pin;

[0039] The 2nd guide lead is the pulse signal 2 (as above);

[0040] The 3rd guide lead is the pulse signal 9 (as above);​

[0041] The pulse signal of lead 4 is the detection signal current that flows back from the core wire (if there is a connected test terminal core wire) through the test wire pin and then through the first normally closed pin of the first optocoupler.

[0042] After receiving a high-level pulse from the first main control chip, the first normally open pin of the first optocoupler closes and the first normally closed pin opens. The detection current flows in the direction of lead 1, 2 or 3. At the same time, only one pulse signal is used on one pulse signal lead, and only one first normally open pin of the first optocoupler closes and the first normally closed pin opens.

[0043] When the first optocoupler does not receive a high-level pulse from the first main control chip, its first normally open pin is open and its first normally closed pin is closed, and the detection current flows in the direction of lead wire 4.

[0044] The first LED lights up when the current is detected. Its function is as follows: when no test terminal is connected, it flashes with low brightness to indicate that the transmitting end is sending a pulse signal. When the test terminal is connected, it flashes with high brightness to indicate that there is a connection between the test line pin of the transmitting end and a certain pin of the test terminal (i.e., a certain test line pin of the test terminal).

[0045] Depend on Figure 2 As can be seen, the second main control chip at the signal test end is connected to the test line pin of any test end via a second optocoupler 4, a second light-emitting diode 5, and a return diode 6; wherein, the second main control chip is connected to the signal output pin of the second optocoupler 4 to receive pulse signals, and outputs video and audio signals of the corresponding line sequence to the display or player according to the pulse signals, so as to display the line sequence of the test line or play the line sequence of the test line by voice.

[0046] The return diode 6 and the light-emitting element 41 of the second optocoupler 4 are connected in reverse parallel on the input side of the second optocoupler 4; the second light-emitting diode 5 is connected in series between the return diode 6 and the light-emitting element 41.

[0047] The test lead pin of the test terminal is connected in series between the second LED 5 and the return diode 6 through a current-limiting resistor 7. The second normally open pin of the second optocoupler 4 is grounded through a limiting resistor 8.

[0048] The working principle and process of the test terminal main control chip (i.e., the second main control chip) are now explained as follows:

[0049] 1. The main control chip of the test end has 9 pulse signal leads, 9 second optocouplers and 9 test line pins (each pulse signal lead, each second optocoupler and each test line pin of the test end form a group, a total of 9 groups). Since the working principle is the same, the 3rd to 8th pulse signal leads, the second optocouplers and the corresponding test line pins of the test end are omitted here.

[0050] 2. Pulse signal is the different pulse signal from the signal sending end received by each test end test line pin in turn, only one pulse signal on the first main control chip lead at the same time, and only one second light coupling second normally open pin is closed.

[0051] 3. The guide line (signal guide line) in the figure is respectively:

[0052] 5th guide line pulse signal 1: (if there is a connected test end core line) the core line transmits the detection pulse signal to the second light coupling through the pin, and the second light coupling connects the second light coupling normally open pin to transmit the pulse signal to the second light coupling main control chip.

[0053] 6th guide line pulse signal 2 (the same as above);

[0054] 7th guide line pulse signal 9 (the same as above);

[0055] 8th guide line pulse signal is the detection signal current from the backflow diode 6 to the core line backflow (if there is a connected test end core line).

[0056] When the second light coupling receives the pulse high level from the core line, its second normally open pin is closed, and the detection current flows in the direction of the colored guide line, only one pulse signal on the second main control chip lead at the same time, and only one second light coupling second light coupling normally open pin is closed.

[0057] When the second light coupling does not receive the pulse high level from the first main control chip, its second normally open pin is open, and the detection current flows in the direction of the black guide line;

[0058] The second light emitting diode is lit when the detection current flows, and the function is to flash when connected to the sending end, indicating that there is a connection between the test line pin of the test end and the test line pin of a certain sending end.

[0059] The second main control chip sends a video signal to the display to display the line sequence; at the same time, the second main control chip sends a sound command to the sound card, and the sound card controls the loudspeaker to play the applicable communication interface voice.

[0060] Now combined with the attached Figure 3 Explain the core parallel line test practice operation process, by Figure 3As can be seen, the pulse signal from each pulse signal lead of the first main control chip of the signal sending end is sent to the first optocoupler, amplified by the first optocoupler, and then sent to the test end test line pin of the signal test end through the core line (i.e. only one core line can be used at the same time, and the pulse signal of the core line is transmitted) through the sending end test line pins 1 to 9 in sequence, and then received by the second main control chip and judged for the test line sequence, and the video signal is sent to the display to display the sequence; at the same time, the second main control chip sends a sound command to the sound card, and the sound card controls the loudspeaker to play the applicable communication interface voice. Since the core parallel line test is adopted, the test effect is as shown in Figure 3 the figure, the pins of the signal sending end and the signal test end are parallel and sequentially corresponding to complete the test.

[0061] And Figure 4 is the core cross line test practical operation process, the pulse signal from each pulse signal lead of the first main control chip of the signal sending end is sent to the first optocoupler, amplified by the first optocoupler, and then sent to the test end test line pin of the signal test end through the core line (i.e. only one core line can be used at the same time, and the pulse signal of the core line is transmitted) through the sending end test line pins 1 to 9 in sequence, and then received by the second main control chip and judged for the test line sequence, and the video signal is sent to the display to display the sequence; at the same time, the second main control chip sends a sound command to the sound card, and the sound card controls the loudspeaker to play the applicable communication interface voice. Since the core cross line test is adopted, the test effect is as shown in Figure 4 the figure, the pulse signal of the signal sending end and the signal test end shows a cross flashing, i.e. the pin sequence of the signal sending end and the pin sequence of the signal test end are staggered, not sequentially arranged.

[0062] From the above description, it is not difficult to see that the signal sending end sends different pulse signals from its 1 to 9 pins in turn, and each pin of the signal testing end receives these different pulse signals, and then judges which pin of the signal sending end sends the pulse signal, so as to know the line sequence of the tested line according to the program of the second main control chip memory, and at the same time, according to the pre-configured file in the second main control chip, the applicable communication interface type is sent to the display by sending the video signal to the display, and the line sequence is displayed; at the same time, the second main control chip sends a sound command to the sound card, and the sound card controls the loudspeaker to play the applicable communication interface voice, that is, the voice is played through the player. The whole process requires no cable professional knowledge of the tester, and a single person can complete the test; the whole test process can be completed in 10 to 15 seconds, the test result is intuitive and visual, the voice is played synchronously, the applicable interface type is played, various different interface types are applicable, special interface types and newly added interface types only need to modify the configuration file to adapt, these are all mature existing technologies, which can be set by the technicians according to the specific needs. It overcomes the disadvantages of the traditional line sequence test, that is, two people use a multimeter to test the DB9 line sequence, need two people to communicate the test method in advance, predict the wiring interface type, use paper and pen to record the test situation of each core wire, need to consult relevant materials to judge the interface type after the test, if the distance is far, it also needs to place the test auxiliary line and use the intercom to contact, the test preparation time is long, the test process is complex, the accuracy is difficult to guarantee, the personnel quality requirement is high, two people are needed to cooperate and the efficiency is low.

Claims

1. An intelligent DB9 wire testing tool characterized by, The signal sending end and the signal testing end are included; The signal sending end includes a first main control chip and No.1 to No.9 sending end test line pins connected with the first main control chip respectively and used for sending different pulse signals in sequence; The signal testing end includes a second main control chip and No.1 to No.9 testing end test line pins connected with the second main control chip respectively and used for receiving the pulse signals in sequence; The signal testing end further includes a display used for displaying the line sequence of the test line and a player used for playing the communication interface applicable to the line sequence; The display and the player are connected with the second main control chip respectively.

2. The split smart DB9 wire test tool of claim 1, wherein, The first main control chip is connected with any of the sending end test line pins respectively via a first optocoupler (1), a first light emitting diode (2) and a first unidirectional conducting element (3); The first main control chip is connected with a signal input pin of the first optocoupler (1) to send the pulse signal to the first optocoupler (1); The first light emitting diode (2) and the first unidirectional conducting element (3) are connected in series between a first normally open pin and a first normally closed pin of the first optocoupler (1); The sending end test line pin is connected in series between the first light emitting diode (2) and the first unidirectional conducting element (3) to receive the pulse signal amplified by the first optocoupler (1); The first optocoupler (1) is connected in parallel on a detection power supply circuit.

3. The split smart DB9 wire test tool of claim 2, wherein, The second main control chip is connected with any of the testing end test line pins via a second optocoupler (4), a second light emitting diode (5) and a backflow diode (6); The second main control chip is connected with a signal output pin of the second optocoupler (4) to receive the pulse signal and output a video signal and an audio signal of the line sequence to the display and the player according to the pulse signal; The backflow diode (6) and a light emitting element (41) of the second optocoupler (4) are connected in reverse parallel on an input side of the second optocoupler (4); The second light emitting diode (5) is connected in series between the backflow diode (6) and the light emitting element (41).

4. The split smart DB9 wire test tool of claim 3, wherein, The testing end test line pin is connected in series between the second light emitting diode (5) and the backflow diode (6) via a current limiting resistor (7).

5. The split smart DB9 wire test tool of claim 4, wherein, A second normally open pin of the second optocoupler (4) is grounded via a limiting resistor (8).

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