CN113960518A - Band knob type address calibration device and calibration method - Google Patents
Band knob type address calibration device and calibration method Download PDFInfo
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- CN113960518A CN113960518A CN202111198491.1A CN202111198491A CN113960518A CN 113960518 A CN113960518 A CN 113960518A CN 202111198491 A CN202111198491 A CN 202111198491A CN 113960518 A CN113960518 A CN 113960518A
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- universal meter
- band knob
- wave band
- test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
Abstract
The invention provides a wave band knob type address calibration device which comprises a universal meter and test equipment, wherein the test equipment comprises a test connector and a wave band knob which are matched with tested equipment, the test connector is provided with a connecting terminal and a loop terminal which correspond to an address wiring pin phase of the tested equipment, the loop terminal is connected with a negative pole of the universal meter through a negative pole cable, the wave band knob is provided with a COM end and a plurality of movable contacts, the COM end is provided with a contact piece, the wave band knob is rotated to different gears, the contact piece is communicated with the corresponding movable contacts, the movable contacts are respectively connected with the connecting terminal, the COM end is connected with a positive pole of the universal meter through a positive pole cable, and the universal meter, the COM end, the corresponding movable contacts, the corresponding connecting terminals and the loop terminal form a loop. The test equipment and the tested equipment are connectors which are completely matched, so that the problem that the meter pen cannot directly measure is solved, the connection is more reliable, the meter pen can be used repeatedly, and the operation is very convenient.
Description
Technical Field
The invention belongs to the technical field of rail vehicle debugging, and particularly relates to a wave band knob type address verification device.
Background
In the fire alarm system test of the motor train unit, whether the address coding wiring of the fire alarm host is correct needs to be checked. The fire alarm system can play an extremely important role in timely giving an alarm and displaying the position of a fire when an electric fire occurs in a vehicle, so that a fire alarm test is a special key link involving safe and stable operation of the vehicle, the correct address coding wiring of a fire alarm host is a basic guarantee for realizing the function of the fire alarm system, and the fact that the address wiring of the fire alarm host can be accurately and effectively confirmed is particularly important. The address wiring of the fire alarm host is generally arranged on 28d, 28b, 28z, 26d, 26b, 26z and 32z in the connector 49-K10-X1, a universal meter is required to be used for measuring the resistance value between the address wiring and the 32z, the universal meter cannot directly contact the corresponding address pin due to the fact that the pin of the address connector of the fire alarm host is not matched with the universal meter, the measurement is particularly difficult, and the connector has 48 pins in total, and the measurement is easy to be disordered. The traditional measuring method uses a thin iron wire as an auxiliary measuring device to enable a gauge pen to indirectly contact a measured needle position. The measuring method has various disadvantages, one is that the thin iron wire is wound on the meter pen and cannot be firmly fixed, so that virtual connection is easily caused, and the test result is influenced; secondly, the used fine iron wire is difficult to reuse, and the fine iron wire is easy to remain on the operation site, thereby bringing potential safety hazard; the tested needle position can be distinguished only by manpower, so that errors are easy to occur; and time and labor are wasted due to the need of frequent replacement of the measuring points.
Disclosure of Invention
The invention aims to solve the problems that the traditional address checking device is not firm in contact, easy to make errors in measurement, time-consuming and labor-consuming. Therefore, the waveband knob type address calibration device is provided, the purpose of enabling test connection to be more convenient and firm in contact is achieved, time and labor are saved during measurement, and production efficiency is improved.
In order to achieve the purpose, the invention provides a wave band knob type address calibration device which comprises a universal meter and a test device, wherein the test device comprises a test connector and a wave band knob matched with tested equipment, the test connector is provided with a connecting terminal and a loop terminal, the connecting terminal corresponds to an address wiring pin of the tested equipment, the loop terminal is connected with the negative pole of the universal meter through a negative pole cable, the wave band knob is provided with a COM end and a plurality of movable contacts, the COM end is provided with a contact piece, the wave band knob is rotated to different gears, the contact piece is communicated with corresponding movable contacts, the movable contacts are respectively connected with the connecting terminal, the COM end is connected with the positive pole of the universal meter through a positive pole cable, and the universal meter, the COM end, the corresponding movable contacts, the corresponding connecting terminals and the loop terminal form a loop.
Furthermore, the positive cable and the negative cable are provided with connectors matched with the universal meter socket at one ends, and the other ends of the positive cable and the negative cable are connected with a loop terminal or a COM end of the test connector, so that the connection and the disassembly are convenient.
Furthermore, mark the connecting terminal that the test gear corresponds on the wave band knob, conveniently find the wrong terminal of wiring.
The present invention also provides a method for performing address verification using the band knob type address verification apparatus as set forth in claim 2, comprising the steps of:
step 1: inserting the connecting terminal and the loop terminal of the test equipment into corresponding needle positions of the tested equipment;
step 2: inserting the positive cable and the negative cable into corresponding sockets of a universal meter, and selecting an ohmic gear by the universal meter;
and step 3: when the wave band knob is turned to a corresponding gear, the universal meter displays that the resistance value is qualified when meeting a specified value, and if the resistance value is not consistent with the specified value;
and 4, step 4: checking the needle position wiring of the tested equipment corresponding to the current gear, and rewiring;
and 5: and (4) detecting the resistance value of the current gear again, if the multimeter displays that the resistance value meets the specified value, the resistance value is qualified, and if the resistance value does not meet the specified value, repeating the step 4.
According to the wave band knob type address verification device and the verification method, the test equipment and the tested equipment are completely matched connectors, so that the problem that a meter pen cannot directly measure is solved, and the connection is more reliable. The test equipment can be used repeatedly to test equipment itself just has the test cable, and it just can to insert the positive negative pole of universal meter with the test cable during the use, and it is very convenient to operate. The knob of the test equipment is marked with corresponding test gears, and the purpose of measurement can be realized by adjusting the knob to the corresponding gears according to the measurement needle position required by the file, so that the operation is simple and clear. The test can be completed only by operating the knob without depending on manpower to distinguish the tested needle position, thereby avoiding the problem of inaccurate measurement result caused by identifying wrong needle positions by operators.
Drawings
FIG. 1 is a schematic structural diagram of a band knob type address calibration device according to the present invention;
FIG. 2 is a schematic view of the internal connection of the band knob type address verification apparatus according to the present invention;
FIG. 3 is a schematic diagram of a band knob type address verification apparatus according to the present invention;
wherein: 1. a universal meter; 2. a wave band knob; 3. testing the connector; 4. a fire alarm host connector; 5. a positive cable; 6. a negative cable; 7. a connection terminal; 8. a loop terminal; sixthly, moving contact.
Detailed Description
Referring to fig. 1 to 3, address wiring of a CRH3 type motor train unit fire alarm host is installed on a pin position of 28d, 28b, 28z, 26d, 26b, 26z and 32z in a connector 49-K10-X1, and in order to accurately measure and verify whether the address wiring is correct, a wave band knob type address verification device is designed, wherein the device comprises a universal meter 1, test equipment and test equipment, the test equipment comprises a test connector 3 and a wave band knob 2 matched with the fire alarm host, the test connector 3 is a male plug, the fire alarm host connector is a female plug, the test connector 3 only reserves connecting terminals 7 with the serial numbers of 26d, 26b, 26z, 28d, 28b and 28z and a loop terminal 8 with the serial number of 32z, and the connecting terminals 7 are respectively connected with moving contacts with the serial numbers of (i) to (ii). The wave band knob 2 is provided with a COM end and moving contacts with serial numbers from (i) to (ii), the COM end is provided with a contact piece 9, the wave band knob 2 is rotated to different gears, the contact piece 9 is communicated with the corresponding moving contacts, and the moving contacts with the serial numbers from (i) to (ii) are respectively connected with connecting terminals 7 with the serial numbers of 26d, 26b, 26z, 28d, 28b and 28 z. After the test equipment is inserted into the fire alarm host connector, the test connectors are numbered 26d, 26b, 26z, 28d, 28b and 28z, the connecting terminals 7 are respectively connected with the fire alarm host connector, the pins are numbered 26d, 26b, 26z, 28d, 28b and 28z, and the loop terminals 8 are connected with the pins of 32 z.
The loop terminal 8 of the test connector 3 is connected with the negative cable 6, the other end of the negative cable 6 is provided with a joint matched with a socket of a universal meter, and the negative pole of the universal meter can be directly inserted. The COM end of the wave band knob 2 is connected with one end of a positive cable 5, and the other end of the positive cable 5 is provided with a joint matched with a universal meter socket and used for inserting the universal meter positive socket. The wave band knob 2 is marked with the number of the connecting terminal 7 corresponding to each test gear.
During operation, the testing equipment connector 3 and the fire alarm host connector 4 are connected with each other, the positive cable 5 and the negative cable 6 are inserted into the universal meter 1, the universal meter selects an ohmic gear, the universal meter 1, the COM end, the corresponding movable contact, the corresponding connecting terminal and the loop terminal 8 form a loop, and the test data can be read by rotating the wave band knob 2. And after the work is finished, the testing equipment and the tested equipment are connected, the universal meter 1 is detached, and the testing device is put into the tool box.
The wave band knob type address verification device is convenient to verify, the CRH3 motor train unit has 8 carriages, each carriage is different in code, and 4 carriages and 5 carriages are listed as the description below. The coding configurations of the 4 th car and the 5 th car are shown in table 1 below, and the connection state of the connection terminal pointed by the band knob and the connection state of the 32z are shown in a list form, where "1" represents on and "0" represents off. When in the on state, the multimeter exhibits a resistance of less than 5 Ω, and when in the off state, the multimeter exhibits a resistance of infinity.
TABLE 1
When testing four cars, insert test equipment connecting terminal and return circuit terminal in the corresponding needle position of four car fire alarm host computers, anodal cable 5 is connected with the universal meter positive pole, and negative pole cable 6 is connected with the universal meter negative pole, selects the universal meter gear at ohm shelves. Rotating the wave band knob switch to a position of 26d, and displaying a resistance value smaller than 5 omega by the universal meter to represent that the product is qualified; then the wave band knob is turned to the position of 26b, and the universal meter displays that the resistance value is less than 5 omega, and the condition is qualified; then the wave band knob is turned to a position of 26z, and the multimeter displays that the resistance value is infinite and infinite, which represents qualified; then the wave band knob is turned to the position of 28d, the universal meter displays that the resistance value is smaller than 5 omega, and the universal meter is qualified, and then the wave band knob is turned to the position of 28b, and the universal meter displays that the resistance value is smaller than 5 omega, and the universal meter is qualified; and then the wave band knob is turned to a position of 28z, and the multimeter displays that the resistance value is infinite and infinity, which represents qualification.
During five vehicle-hours of test, be connected test equipment with five car tested equipment, anodal cable 5 is connected with the universal meter positive pole, and negative pole cable 6 is connected with the universal meter negative pole, selects the universal meter gear at ohm shelves. Rotating the wave band knob switch to a position of 26d, and displaying that the resistance value of the universal meter is infinite and infinity represents qualification; then the wave band knob is turned to the position of 26b, and the universal meter displays that the resistance value is less than 5 omega, and the condition is qualified; then the wave band knob is turned to a position of 26z, and the multimeter displays that the resistance value is infinite and infinite, which represents qualified; then the wave band knob is turned to the position of 28d, the universal meter displays that the resistance value is smaller than 5 omega, and the universal meter is qualified, and then the wave band knob is turned to the position of 28b, and the universal meter displays that the resistance value is smaller than 5 omega, and the universal meter is qualified; and then the wave band knob is turned to a position of 28z, and the multimeter displays that the resistance value is infinite and infinity, which represents qualification.
If the display value of the multimeter 1 is inconsistent with the resistance value corresponding to the code in the table in the test process, the connection of the terminal corresponding to the current gear of the tested equipment is checked, and the resistance value is re-detected after the connection is re-detected until the requirement is met.
Claims (4)
1. A wave band knob type address calibration device is characterized in that: comprises a universal meter (1), test equipment, wherein the test equipment comprises a test connector (3) matched with the tested equipment and a wave band knob (2), the test connector (3) is provided with a connecting terminal (7) corresponding to the address wiring pin of the tested device and a loop terminal (8), the loop terminal (8) is connected with the negative pole of the universal meter (1) through a negative pole cable (6), the wave band knob (2) is provided with a COM end and a plurality of movable contacts, the COM end is provided with a contact piece (9), the wave band knob (2) is rotated to different gears, the contact piece (9) is communicated with the corresponding movable contacts, the movable contacts are respectively connected with the connecting terminals (7), the COM end is connected with the anode of a multimeter through an anode cable (5), the universal meter (1), the COM end, the corresponding movable contact, the corresponding connecting terminal and the loop terminal (8) form a loop.
2. The band knob type address verifying unit as claimed in claim 1, wherein: and one end of each of the positive cable (5) and the negative cable (6) is provided with a joint matched with a universal meter socket, and the other end of each of the positive cable and the negative cable is connected with a loop terminal (8) or a COM end of the test connector (3).
3. The band knob type address verifying unit as claimed in claim 1, wherein: and the connecting terminal corresponding to the test gear is marked on the wave band knob (2).
4. A method for performing address verification using the band knob type address verification device as claimed in claim 2, comprising the steps of:
step 1: inserting the connecting terminal (7) and the loop terminal (8) of the test equipment into corresponding needle positions of the tested equipment;
step 2: the positive cable (5) and the negative cable (6) are inserted into corresponding sockets of the universal meter, and the universal meter selects an ohmic gear;
and step 3: when the wave band knob (2) is turned to a corresponding gear, the universal meter displays that the resistance value is qualified when meeting a specified value, and if the resistance value is not consistent with the specified value;
and 4, step 4: checking the needle position wiring of the tested equipment corresponding to the current gear, and rewiring;
and 5: and (4) detecting the resistance value of the current gear again, if the multimeter displays that the resistance value meets the specified value, the resistance value is qualified, and if the resistance value does not meet the specified value, repeating the step 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111198491.1A CN113960518A (en) | 2021-10-14 | 2021-10-14 | Band knob type address calibration device and calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111198491.1A CN113960518A (en) | 2021-10-14 | 2021-10-14 | Band knob type address calibration device and calibration method |
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| Publication Number | Publication Date |
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| CN113960518A true CN113960518A (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111198491.1A Pending CN113960518A (en) | 2021-10-14 | 2021-10-14 | Band knob type address calibration device and calibration method |
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| CN202033443U (en) * | 2011-04-15 | 2011-11-09 | 宁夏巨能机器人系统有限公司 | Multi-core finished product cable correcting device |
| CN102680859A (en) * | 2012-05-31 | 2012-09-19 | 北京空间飞行器总体设计部 | Conduction and insulation testing method for cable network |
| CN202583377U (en) * | 2012-03-31 | 2012-12-05 | 辽宁省电力有限公司盘锦供电公司 | Secondary cable wire corrector |
| CN203849330U (en) * | 2014-05-27 | 2014-09-24 | 国家电网公司 | DC (direct current) resistance measuring instrument for AC (alternating current) loop |
| CN105334352A (en) * | 2014-08-11 | 2016-02-17 | 北京航天动力研究所 | Three-position switch array conduction insulation test device and method |
| CN205920147U (en) * | 2016-03-03 | 2017-02-01 | 成都宏明电子股份有限公司 | A multistation measuring equipment for measuring electronic component leakage current |
| CN212749086U (en) * | 2020-07-23 | 2021-03-19 | 深圳市华夏准测检测技术有限公司 | Adapter test load device |
| CN213149152U (en) * | 2020-09-11 | 2021-05-07 | 青岛四三零八机械厂 | Multi-core socket insulation test tool |
-
2021
- 2021-10-14 CN CN202111198491.1A patent/CN113960518A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202033443U (en) * | 2011-04-15 | 2011-11-09 | 宁夏巨能机器人系统有限公司 | Multi-core finished product cable correcting device |
| CN202583377U (en) * | 2012-03-31 | 2012-12-05 | 辽宁省电力有限公司盘锦供电公司 | Secondary cable wire corrector |
| CN102680859A (en) * | 2012-05-31 | 2012-09-19 | 北京空间飞行器总体设计部 | Conduction and insulation testing method for cable network |
| CN203849330U (en) * | 2014-05-27 | 2014-09-24 | 国家电网公司 | DC (direct current) resistance measuring instrument for AC (alternating current) loop |
| CN105334352A (en) * | 2014-08-11 | 2016-02-17 | 北京航天动力研究所 | Three-position switch array conduction insulation test device and method |
| CN205920147U (en) * | 2016-03-03 | 2017-02-01 | 成都宏明电子股份有限公司 | A multistation measuring equipment for measuring electronic component leakage current |
| CN212749086U (en) * | 2020-07-23 | 2021-03-19 | 深圳市华夏准测检测技术有限公司 | Adapter test load device |
| CN213149152U (en) * | 2020-09-11 | 2021-05-07 | 青岛四三零八机械厂 | Multi-core socket insulation test tool |
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