CN113328297B - Cable network and method for judging plug plugging state of cable network - Google Patents
Cable network and method for judging plug plugging state of cable network Download PDFInfo
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- CN113328297B CN113328297B CN202110490363.8A CN202110490363A CN113328297B CN 113328297 B CN113328297 B CN 113328297B CN 202110490363 A CN202110490363 A CN 202110490363A CN 113328297 B CN113328297 B CN 113328297B
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- electric connector
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- pin
- cable network
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/02—Intermediate parts for distributing energy to two or more circuits in parallel, e.g. splitter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
- G01R31/69—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board of terminals at the end of a cable or a wire harness; of plugs; of sockets, e.g. wall sockets or power sockets in appliances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a cable network and a method for judging the plug plugging state of the cable network, comprising an electric connector plug, an equipment socket and an electric connector protection socket; the electric connector plugs are sequentially connected in series through respective two testing pins, and the testing pins at the two ends form a testing port TEST1 and a testing port TEST2; two test pins in the equipment socket are in short circuit; two test pins in the electric connector protection socket are respectively connected in series with a constant value resistor; the electric connector plug is connected to the corresponding equipment socket when in use, and is connected to the corresponding electric connector protection socket when not in use. The invention realizes that the plugging state of each electric connector in the cable network can be accurately identified and detected only by measuring the resistance value of the universal meter once.
Description
Technical Field
The invention relates to the technical field of spacecrafts, in particular to a cable network and a method for judging the plug plugging and unplugging state of a plug of the cable network.
Background
The cable network is used as a component for power supply and signal connection among system equipment and is an essential component of various spacecraft and ground systems. The cable network generally comprises a large number of electric connectors, and a plurality of different electric connector connection states need to be established at each stage of final assembly and test of the aircraft and ground systems thereof according to the connection relation requirements among equipment.
The traditional method for confirming the plugging state of the electric connector is generally visual inspection, namely the electric connector is distinguished by an identification code, and the plugging state is confirmed by visual inspection.
Patent No. CN96248903.4 discloses an electrical connector with special functions, which comprises: an insulating housing having a plugging surface and a mounting surface, the interior of which has a plurality of channels disposed therebetween; the conductive terminals are arranged in the pore channels, one end of each conductive terminal is close to the plugging surface, and the other end of each conductive terminal extends out of the mounting surface of the insulating shell; the insulating shell is provided with a specific device, and the specific device at least comprises a first pin, one end of which extends into the insulating shell and is adjacent to the conductive terminal; and a positioning mechanism for positioning the first pin at a specific position.
CN96248904.2 discloses an electrical connector with a detection function, which comprises an insulating housing having a plugging surface and a mounting surface, a joint body having a plurality of channels therein; an insulating plate disposed on the mounting surface side of the insulating housing at an angle of ninety degrees to the insulating housing; one end of each conductive terminal extends out of the mounting surface of the insulating shell, is bent and then penetrates through the insulating flat plate; the metal base frame is used for erecting the insulating shell and the insulating flat plate, and the buckling positioning component is arranged on the conjugant, and the conjugant is provided with a detection device which comprises a first pin; and a positioning mechanism for positioning the first pin.
The patent with application number CN98252298.3 discloses an electric connector with detection function, which comprises an insulating housing, conductive terminals and a detection device, wherein the detection device comprises two metal sheets formed by stamping, one end of each metal sheet extends out a pin into the insulating housing and is adjacent to the conductive terminals, the other end is a positioning plate capable of positioning the pins at specific positions.
Patent with application number CN201410617574.3 discloses a socket and plug virtual plug detection circuit, device and method. The socket comprises two-section type clamping pieces consisting of a main clamping piece and an auxiliary clamping piece, when a plug is inserted into the socket, the plug is contacted with the main clamping piece to form a main passage, the plug is contacted with the auxiliary clamping piece to form an auxiliary passage, and the main passage is connected with the auxiliary passage in parallel. The detection circuit of the invention comprises a first detection circuit for detecting the current on the main path; a second detection circuit for detecting a current on the secondary path; the comparison circuit is used for judging whether the ratio of the current on the main channel to the current on the auxiliary channel is in a preset range or not; and the alarm circuit is used for sending an alarm signal when the ratio of the current on the main passage to the current on the auxiliary passage is not in a preset range. The invention can automatically detect the virtual plug of the plug in time.
The techniques disclosed in the above four patents only have a function of identifying the virtual plugging and the dropping of a single electrical connector, and do not relate to the function of detecting the plugging and dropping states of a large number of electrical connectors on a cable network.
Disclosure of Invention
The invention aims to provide a cable network and a method for judging the plug plugging and unplugging state of a plug of the cable network.
The cable network provided by the invention comprises an electric connector plug, an equipment socket and an electric connector protection socket;
the electric connector plugs are sequentially connected in series through respective two TEST pins, and the TEST pins at the two ends form a TEST port TEST1 and a TEST port TEST2;
two test pins in the equipment socket are in short circuit;
two test pins in the electric connector protection socket are respectively connected in series with a constant value resistor;
the electric connector plug is connected to the corresponding equipment socket when in use, and is connected to the corresponding electric connector protection socket when not in use.
Preferably, the number of the electric connector plugs is multiple, and two testing pins of the electric connector plugs are respectively a T01 pin and a TO2 pin.
Preferably, the plurality of electric connector plugs are connected in series through respective T01 pins and T02 pins, the T01 pin at the start end is led out to be a TEST port TEST1, and the T02 pin at the tail end is led out to be a TEST port TEST2.
Preferably, the equipment sockets are arranged in a plurality of numbers, the equipment sockets correspond to the electric connector plugs in a one-to-one mode, and the two test pins of the equipment sockets are respectively a pin Z01 and a pin Z02.
Preferably, the respective Z01 and Z02 pins of a plurality of said device receptacles are shorted.
Preferably, the number of the electric connector protection sockets is multiple, the electric connector protection sockets correspond to the electric connector plugs one by one, and two test pins of the electric connector protection sockets are respectively a ZB01 pin and a ZB02 pin.
Preferably, a fixed-value resistor is connected in series between the ZB01 pin and the ZB02 pin of each of the plurality of electric connector protection sockets, and the resistance values of the fixed-value resistors connected in series with each of the electric connector protection sockets are different.
The invention also provides a method for judging the plug plugging state of the cable network, which comprises the following steps:
step 1: connecting a universal meter to the TEST port TEST1 and the TEST port TEST2, and measuring the resistance value between the TEST port TEST1 and the TEST port TEST2;
step 2: reading the resistance value of the universal meter and recording the resistance value;
and step 3: and judging the connection state of each electric connector according to the recorded resistance value.
Preferably, the step 3 comprises the following steps:
step 3.1: calculating the total resistance value of each combination condition of each electric connector plug in different plugging states, and making the calculation result into a table;
step 3.2: and finding out the resistance value measured by the universal meter in a table so as to judge the plugging and unplugging state of each electric connector plug.
Preferably, the step 3.1 comprises the following steps:
step 3.1.1: the electric connector plugs and the electric connector protection sockets are matched one by one, each electric connector plug is fixedly corresponding to one electric connector protection socket, and each electric connector plug is corresponding to one fixed resistor;
step 3.1.2: calculating the total resistance value of each combination condition of different plugging and unplugging states of each electric connector plug, and recording the plugging and unplugging state of each electric connector plug under each total resistance value;
step 3.1.3: and making the total resistance value and the plugging and unplugging state of each corresponding electric connector plug into a table.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention realizes that the plugging state of each electric connector in the cable network can be accurately identified and detected only by measuring the resistance value of the universal meter once;
2. the system of the invention confirms that the electric connector with the sight line blocked exists in the system without the help of visual inspection tools such as a flashlight, a reflector and the like;
3. the electric connector with insufficient visual inspection space is confirmed without adjusting the system posture or disassembling the equipment shell.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic diagram of a cable network and a method for designing the same according to the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will aid those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any manner. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the invention.
Fig. 1 shows a cable network and a principle of a design method thereof according to the present invention, and as shown in fig. 1, the cable network provided by the present invention includes an electrical connector plug, an equipment socket, and an electrical connector protection socket.
The electric connector plugs are connected in series in sequence through respective two testing pins, the testing pins at two ends form a testing port TEST1 and a testing port TEST2, the two testing pins in the equipment socket are in short circuit, and the two testing pins in the electric connector protection socket are respectively connected in series with a fixed value resistor.
The electric connector plug is connected to the corresponding equipment socket when in use, and is connected to the corresponding electric connector protection socket when not in use.
Two testing pins of the equipment plug are in short circuit, when the electric connector plug is connected to equipment, the testing pins of the electric connector are in short circuit, and the resistance is 0 omega. The two test pins in the electric connector protection socket are respectively connected with a resistor with a specific resistance value in series, when the electric connector plug is not used, the electric connector plug is connected to the corresponding electric connector protection socket, and the resistor with the specific resistance value enters the space between the test pins of the electric connector.
The resistances of the protection sockets of each electric connector in series are different, and the total resistance values of the electric connector plugs in different plugging states under different combination conditions are different, so that the plugging state of each electric connector plug can be determined by actually measuring the resistance value of the cable network test port to look up a table.
The cable network of the present invention uses 4 electrical connector plugs, 4 equipment receptacles and 4 electrical connector protection receptacles. The 4 electric connector plugs are specifically an electric connector plug T1, an electric connector plug T2, an electric connector plug T3 and an electric connector plug T4; the 4 equipment sockets are specifically an equipment socket Z1, an equipment socket Z2, equipment Z3 and an equipment socket Z4; the 4 electric connector protection sockets are specifically an electric connector protection socket ZB1, an electric connector protection socket ZB2, an electric connector protection socket ZB3 and an electric connector protection socket ZB4.
The two test pins of each electrical connector plug are respectively a pin T01 (such as pins 1 and 2 of the electrical connector plug T1 in FIG. 1; the two test pins of each equipment socket are respectively a pin Z01 and a pin Z02 (such as pins 1 and 2 of the equipment socket Z1 in FIG. 1), and the two test pins of each electrical connector protection socket are respectively a pin ZB01 and a pin ZB02 (such as pins 1 and 2 of the electrical connector protection socket ZB1 in FIG. 1).
The short circuit of the pins 1 and 2 of the equipment socket Z1, the short circuit of the pins 1 and 2 of the equipment socket Z2, the short circuit of the pins 1 and 2 of the equipment socket Z3 and the short circuit of the pins 1 and 2 of the equipment socket Z4.
A1K omega resistor is connected between a pin 1 and a pin 2 of the electric connector protection socket ZB1 in series, a 2K omega resistor is connected between a pin 1 and a pin 2 of the electric connector protection socket ZB2 in series, a 5K omega resistor is connected between a pin 1 and a pin 2 of the electric connector protection socket ZB3 in series, and a 10K omega resistor is connected between a pin 1 and a pin 2 of the electric connector protection socket ZB4 in series.
The invention also provides a method for judging the plug plugging state of the cable network, wherein the plug of the electric connector is connected to the corresponding equipment socket when in use, and is connected with the corresponding electric connector protection socket when not in use.
The electric connector plug T1 is connected to the equipment socket Z1 when in use, and the electric connector plug T1 is connected to the electric connector protection socket ZB1 when not in use. The electric connector plug T2 is connected to the equipment socket Z2 when in use, and the electric connector plug T2 is connected to the electric connector protection socket ZB2 when not in use. The electric connector plug T3 is connected to the equipment socket Z3 when in use, and the electric connector plug T3 is connected to the electric connector protection socket ZB3 when not in use. The electric connector plug T4 is connected to the equipment socket Z4 when used, and the electric connector plug T4 is connected to the electric connector protection socket ZB4 when not used. The plug plugging and unplugging state is judged through the following steps:
step 1: measuring the resistance value between the TEST ports TEST1 and TEST2 by using a multimeter;
and 2, step: reading the resistance value of the universal meter and recording the resistance value;
and step 3: the electric connector plugs and the electric connector protection sockets are matched one by one, each electric connector plug is fixedly corresponding to one electric connector protection socket, and each electric connector plug is corresponding to one fixed resistor;
and 4, step 4: calculating the total resistance value of each combination condition of different plugging and unplugging states of each electric connector plug, and recording the plugging and unplugging state of each electric connector plug under each total resistance value;
and 5: and making the total resistance value and the plugging and unplugging state of each corresponding electric connector plug into a table.
The connection state of each electrical connector can be obtained, and the specific judgment method is shown in table 1.
TABLE 1 Cable network electric connector plug plugging state table
The invention realizes that the plugging state of each electric connector in the cable network can be accurately identified and detected only by measuring the single resistance value of the universal meter.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A cable network is characterized by comprising an electric connector plug, an equipment socket and an electric connector protection socket;
the electric connector plugs are sequentially connected in series through respective two testing pins, and the testing pins at the two ends form a testing port TEST1 and a testing port TEST2;
short circuit is formed between two testing pins in the equipment socket;
two test pins in the electric connector protection socket are respectively connected in series with a constant value resistor;
the electric connector plug is connected to the corresponding equipment socket when in use and is connected to the corresponding electric connector protection socket when not in use;
the two test pins on the same electric connector plug are electrically connected at the end, when the electric connector plug is connected to equipment, the test pins of the electric connector are short-circuited, the resistance is 0 omega, when the electric connector plug is connected to the corresponding electric connector protection socket, the resistance with specific resistance value enters between the test pins of the electric connector, the resistances in series connection of each electric connector protection socket are different, and the total resistance value of each combination condition of different plugging states of each electric connector plug is different.
2. The cable network of claim 1, wherein the electrical connector plugs are provided in plurality, and the two test pins of the plurality of electrical connector plugs are a T01 pin and a TO2 pin, respectively.
3. The cable network according to claim 2, wherein a plurality of said electrical connector plugs are connected in series via respective T01 pin and T02 pin, and the T01 pin at the beginning is led out as TEST port TEST1, and the T02 pin at the end is led out as TEST port TEST2.
4. The cable network of claim 2, wherein the device sockets are provided in plurality, and the device sockets correspond to the electrical connector plugs one by one, and two test pins of the device sockets are respectively a pin Z01 and a pin Z02.
5. The cable network of claim 4, wherein a plurality of the device receptacles have their respective Z01 and Z02 legs shorted together.
6. The cable network of claim 2, wherein the electrical connector protection sockets are provided in a plurality, and the electrical connector protection sockets correspond to the electrical connector plugs one by one, and two test pins of the plurality of electrical connector protection sockets are a ZB01 pin and a ZB02 pin, respectively.
7. The cable network of claim 6, wherein a constant value resistor is connected between the ZB01 pin and the ZB02 pin of each of the plurality of electrical connector protection sockets, and the constant value resistors connected in series with each of the electrical connector protection sockets have different resistance values.
8. A method for determining the plug plugging state of a cable network according to any one of claims 1 to 7, comprising the steps of:
step 1: connecting a universal meter to the TEST port TEST1 and the TEST port TEST2, and measuring the resistance value between the TEST port TEST1 and the TEST port TEST2;
and 2, step: reading the resistance value of the universal meter and recording the resistance value;
and step 3: and judging the connection state of each electric connector according to the recorded resistance value.
9. The method for judging the plug plugging and unplugging state of the cable network according to claim 8, wherein the step 3 comprises the following steps:
step 3.1: calculating the total resistance value of each combination condition of each electric connector plug in different plugging states, and making the calculation result into a table;
step 3.2: and finding out the resistance value measured by the universal meter in a table so as to judge the plugging and unplugging state of each electric connector plug.
10. The method for judging the plug plugging and unplugging state of the cable network according to claim 9, wherein the step 3.1 comprises the following steps:
step 3.1.1: the electric connector plugs and the electric connector protection sockets are matched one by one, each electric connector plug is fixedly corresponding to one electric connector protection socket, and each electric connector plug is corresponding to one fixed resistor;
step 3.1.2: calculating the total resistance value of each combination condition of different plugging and unplugging states of each electric connector plug, and recording the plugging and unplugging state of each electric connector plug under each total resistance value;
step 3.1.3: and making the total resistance value and the plugging and unplugging state of each corresponding electric connector plug into a table.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110490363.8A CN113328297B (en) | 2021-05-06 | 2021-05-06 | Cable network and method for judging plug plugging state of cable network |
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| CN202110490363.8A CN113328297B (en) | 2021-05-06 | 2021-05-06 | Cable network and method for judging plug plugging state of cable network |
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| CN108466553A (en) * | 2018-03-31 | 2018-08-31 | 山东交通职业学院 | A kind of electric automobile high-voltage interlocking loop of multibreak monitoring |
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| US6614253B2 (en) * | 2001-08-03 | 2003-09-02 | Northrop Grumman Corporation | On-circuit board continuity tester |
| TWI226731B (en) * | 2003-03-26 | 2005-01-11 | Realtek Semiconductor Corp | Multi-jacks detector |
| KR102171102B1 (en) * | 2014-04-23 | 2020-10-28 | 삼성전자주식회사 | Method and apparatus for detecting condition of safety plug |
| CN108732457B (en) * | 2018-06-28 | 2020-06-09 | 航天东方红卫星有限公司 | Method for detecting cable connection state of portable power supply and distribution equipment of small satellite |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1506690A (en) * | 2002-12-12 | 2004-06-23 | 骅讯电子企业股份有限公司 | Single-bit network for detecting multiple sockets |
| CN101598759A (en) * | 2009-07-23 | 2009-12-09 | 航天东方红卫星有限公司 | A kind of detection method of electric connectors of satellite ground power supply and distribution test equipment |
| CN108466553A (en) * | 2018-03-31 | 2018-08-31 | 山东交通职业学院 | A kind of electric automobile high-voltage interlocking loop of multibreak monitoring |
| CN110058180A (en) * | 2019-04-04 | 2019-07-26 | 上海捷新动力电池系统有限公司 | A kind of power battery pack system high pressure interlocking connector detection system |
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