CN116736103A - Portable relay detector and detection method thereof - Google Patents
Portable relay detector and detection method thereof Download PDFInfo
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- CN116736103A CN116736103A CN202310876064.7A CN202310876064A CN116736103A CN 116736103 A CN116736103 A CN 116736103A CN 202310876064 A CN202310876064 A CN 202310876064A CN 116736103 A CN116736103 A CN 116736103A
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- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 67
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000009471 action Effects 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
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- 230000002411 adverse Effects 0.000 abstract description 2
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- 238000005516 engineering process Methods 0.000 description 3
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Classifications
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- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
-
- 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
- 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
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
-
- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to a portable relay detector and a detection method thereof, wherein the portable relay detector comprises an embedded single chip microcomputer, a control unit and an execution unit, wherein the embedded single chip microcomputer is used for receiving an instruction of an upper computer and sending the instruction to the execution unit to execute test logic; collecting contact states of a plurality of signal relays, and calculating time for executing a certain action according to a change state signal of the contact states; outputting analog signals to a programmable adjustable power supply to control the programmable adjustable power supply to output voltage and current which are suitable for various relays; the executing mechanism executes the instruction of the embedded single chip microcomputer to switch the action of the signal relay; the signal relay is connected with the sensor module through the bridge rectifier filter circuit so as to provide a stable direct current signal for the sensor module; the sensor module transmits the collected signals of the signal relay to the upper computer through the high-speed collection board card. In the detection process, the adverse effect of the pulse of the input alternating current is effectively avoided through the bridge rectifier filter circuit, the accuracy of the measured parameters is ensured, and the measurement accuracy is improved.
Description
Technical Field
The invention belongs to the technical field of detection equipment, and particularly relates to a portable relay detector and a detection method thereof.
Background
At present, the domestic railway signal relay testing method basically adopts manual testing, and has large testing error and low efficiency. The 'AX type relay electrical characteristic test board' is limited to test the electrical characteristics and time characteristics of 8 relays, and can not detect the closing state of a relay armature when the working value of the relay is tested, and can only use the coil voltage as the working value when the relay contact is switched on, so that the test result does not accord with the specification of the national standard.
In the prior art, a technology for detecting a relay, such as the invention patent with the patent number of CN202122890296.7, discloses a portable automatic detector for a relay, mainly focuses on realizing the problem that the detection of a train relay is inconvenient, especially the power cannot be taken, and the invention patent with the patent number of CN201721384399.3 discloses a portable on-line detector for the relay, mainly focuses on realizing the real-time storage of a detection structure of the relay. The two patent technologies all adopt common technologies such as single chip microcomputer or upper computer control, adjustable voltage, sensor module and the like, realize measurement and collection of parameters such as voltage, current, contact resistance and the like of a relay, and realize miniaturization and portability, but the parameters inevitably exist in the process of converting alternating current into direct current, because some unavoidable pulse voltages exist in alternating current, unstable current and voltage exist in direct current which leads to a rectifier bridge, and consequently, the accuracy of measured result parameters is deteriorated and the accuracy is reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a portable relay detector and a detection method thereof, which can further improve the accuracy and precision of measured parameters while meeting portability.
The invention solves the technical problems by adopting the following technical scheme:
the utility model provides a portable relay detector, includes signal relay, actuating mechanism, programmable power supply, sensor module, host computer and embedded singlechip, and wherein, signal relay connects sensor module and embedded singlechip respectively, and sensor module connects the host computer, and embedded singlechip is connected to the host computer, and programmable power supply and actuating mechanism are connected respectively to embedded singlechip, and programmable power supply connects actuating mechanism, and actuating mechanism connects signal relay.
The embedded singlechip is used for receiving an instruction of the upper computer and sending the instruction to the execution mechanism to execute the test logic; collecting contact states of a plurality of signal relays, and calculating the time for executing actions according to the change state signals of the contact states; and outputs analog signals to the programmable adjustable power supply to control the programmable power supply to output voltage and current which are suitable for various relays; the executing mechanism executes the instruction of the embedded single chip microcomputer to switch the action of the signal relay; the signal relay is connected with the sensor module through the bridge rectifier filter circuit so as to provide a stable direct current signal for the sensor module; the sensor module transmits the acquired signals of the signal relay to the upper computer through the high-speed acquisition board.
The sensor module comprises a voltage test module and a current test module. The voltage testing module is used for testing rated voltage, magnetizing voltage, releasing voltage and working voltage of the signal relay; the current test module is used for testing rated current, magnetizing current, release current and working current of the signal relay; the resistance detection module is used for testing the coil resistance and the contact resistance of the signal relay; the insulation test module is used for testing insulation resistance of the coil to the ground, the contact to the ground and the coil to the contact group of the signal relay.
And, signal relay passes through bridge rectifier filter circuit and is connected with the sensor module, wherein bridge rectifier filter circuit includes inductance coil L1, inductance coil L2, electric capacity filter C1, electric capacity filter C2, electric capacity filter C3 and rectifier bridge T, inductance coil L1's one end and electric capacity filter C1's one end are connected respectively to the AC input positive pole, inductance coil L2's one end and electric capacity filter C1's the other end are connected respectively to the AC input negative pole, inductance coil L1's the other end and inductance coil L2's the other end are connected the input of rectifier bridge respectively, ground capacitor filter C2 is connected to the output positive pole of rectifier bridge, ground capacitor filter C3 is connected to the output negative pole of rectifier bridge.
A detection method of a portable relay detector comprises the following steps:
step 1, an embedded single chip microcomputer is used for receiving an instruction of an upper computer and sending the instruction to an execution mechanism to execute test logic;
step 2, the embedded single-chip microcomputer collects the contact states of a plurality of signal relays, and calculates the time for executing actions according to the change state signals of the contact states;
step 3, the embedded single chip microcomputer outputs analog signals to the programmable adjustable power supply so as to control the programmable power supply to output voltage and current which are suitable for various relays;
step 4, the running mechanism executes instructions of the embedded single chip microcomputer to switch actions of the signal relay;
and 5, the sensor module transmits the collected signals of the signal relay to the upper computer through the high-speed collection board card, and the upper computer performs analysis and calculation, outputs an instruction and returns to the step 1.
The invention has the advantages and positive effects that:
the portable relay detector is constructed by the upper computer, the embedded single chip microcomputer, the sensor module, the bridge rectifier filter circuit, the signal relay, the execution structure and the program-controlled adjustable power supply, voltage and current output is regulated by the program-controlled power supply, manual voltage regulation is not needed, human errors can be effectively reduced, the signal relay is detected by the sensor module, the electric appliance characteristic detection of the signal relay is obtained, meanwhile, data can be set to the upper computer for storage, adverse effects of pulses of input alternating current are effectively avoided by the bridge rectifier filter circuit in the detection process, and accuracy of measurement parameters and measurement accuracy are ensured.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a block diagram of the bridge rectifier filter circuit of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a portable relay detector and detection method thereof, as shown in figure 1, including signal relay, actuating mechanism, programmable power supply, sensor module, host computer and embedded singlechip, wherein, signal relay connects sensor module and embedded singlechip respectively, and the sensor module is connected the host computer, and embedded singlechip is connected to the host computer, and programmable power supply and actuating mechanism are connected respectively to embedded singlechip, and the actuating mechanism is connected to the programmable power supply.
The embedded singlechip is used for receiving an instruction of the upper computer and sending the instruction to the execution mechanism for executing the test logic; the acquisition signal relay embedded singlechip is used for receiving an instruction of the upper computer and sending the instruction to the execution mechanism to execute the test logic; collecting contact states of a plurality of signal relays, and calculating the time for executing actions according to the change state signals of the contact states; and outputs analog signals to the programmable adjustable power supply to control the programmable power supply to output voltage and current which are suitable for various relays; the executing mechanism executes the instruction of the embedded single chip microcomputer to switch the action of the signal relay; the signal relay is connected with the sensor module through the bridge rectifier filter circuit so as to provide a stable direct current signal for the sensor module; the sensor module transmits the acquired signals of the signal relay to the upper computer through the high-speed acquisition board.
The executing mechanism is connected with the signal relay and executes instructions of the embedded single chip microcomputer to switch actions of the signal relay.
The sensor module related in the embodiment mainly comprises a voltage test module, a current test module, a resistance test module and an insulation test module; the voltage testing module comprises a direct current voltage testing module and an alternating current voltage testing module. The range of the direct current voltage testing module is 20V/200V/600V (automatic switching range), and the precision is (+/-) (0.2 percent reading +0.1 percent full); the range of the alternating voltage testing module is 20V/200V/600V (automatic switching range), and the precision is (+/-) (0.5% reading +0.3% full). The function of the device is mainly to test rated voltage, magnetizing voltage, releasing voltage, working voltage and the like of the signal relay and transmit voltage parameters to the embedded singlechip.
The current testing module comprises a direct current testing module and an alternating current testing module. The measuring range of the direct-current voltage testing module is 50mA/500mA/5A (automatic switching measuring range), and the precision is (+/-) (0.2 percent reading +0.1 percent fullness); the range of the alternating voltage test module is 50mA/500mA/5A (automatic switching range), and the precision is (+/-) (0.5% reading +0.3% full). The function of the device is mainly to test rated current, magnetizing current, discharging current, working current and the like of the signal relay and transmit current parameters to the embedded singlechip.
Resistance detection module resistance test module range 20KΩ, the precision is 0.5% reading +0.3% full scale (more than 200mΩ), 0.5% reading +5mΩ (less than 200mΩ). The function is mainly to test the coil resistance and the contact resistance of the signal relay and transmit the resistance parameters to the embedded singlechip.
Insulation test module range 199.9MΩ, 2% reading+1% full scale. The function is mainly to test the insulation resistance of the signal relay coil to the ground, the contact to the ground and the coil to the contact group, and to transmit the insulation resistance parameter to the embedded single chip microcomputer.
Voltage module model that can satisfy the above functions: KX-DUS-94-S; current module model: KX-DIS-94-S; resistor module model: KX-LR-96-T; insulation module model: KX-HR2-96; program-controlled power model: DHS-11001; the type of the executing mechanism is as follows: SJ2S-05B, CJX2-0910.
As shown in fig. 2, the bridge rectifier filter circuit includes: inductance coil L1, inductance coil L2, electric capacity filter C1, electric capacity filter C2, electric capacity filter C3, rectifier bridge T, inductance coil L1's one end and electric capacity filter C1's one end are connected respectively to the AC input positive pole, inductance coil L2's one end and electric capacity filter C1's the other end are connected respectively to the AC input negative pole, rectifier bridge's input is connected respectively to inductance coil L1's the other end and inductance coil L2's the other end, ground capacitor filter C2 is connected to the output positive pole of rectifier bridge, ground capacitor filter C3 is connected to the output negative pole of rectifier bridge.
The invention has the following functions:
1. the test varieties are complete, and the test varieties comprise 38 varieties of AX series relays and power supply panel series relays.
2. The tester is mainly used for detecting the electrical performance of the signal relay special for the railway. The main test items are: relay coil resistance, contact resistance, magnetizing value, rated value, working value, releasing value, action time, insulation resistance and other electrical parameters.
Compared with the prior art, the tester has the following characteristics:
1. the invention can automatically test the DC voltage, DC current, AC voltage and AC current type relays.
2. The test function is complete, and the electrical characteristics of the relay can be automatically tested.
3. The test speed is high, the precision is high, and two test modes of fast test and high-precision test are provided.
4. The testing process accords with the national standard, and when the working value of the relay is tested, the voltage value or the current value at the two ends of the coil is used as the working value when the armature stop is contacted with the iron core.
5. The operation is simple, and the display is visual. The operation mode adopts a man-machine dialogue mode, the test function is displayed on the liquid crystal screen in a Chinese character menu mode, an operator selects the test function according to the prompt of the screen, the test result is displayed on the liquid crystal screen in a Chinese character, digital and graphic mixed mode, the unqualified test result is displayed in a red marking mode, and the test result can be stored and printed.
6. The system has perfect automatic protection function and self-checking function.
Measured relay type number:
JPXC-1000
JWXC-2.3；7；370/480；500/H300；1000；1700；H310；H340；H600；H850；H1200
JWJXC-480；H120/0.17；H125/0.13；H125/0.44；H125/80
JYXC-270；660
JYJXC-135/220；X135/220；160/260；220/220；3000；J3000
JWJXC-100；7200；JZJXC-100；7200；JWJXC-6800
JZXC-H18；H18F；H138；H142；H156；480；480F；20000
JSBXC-780；820；850；JSDXC-850；JSBXC1-850
JDBXC-550/550；JDBXC-A550/550；JDBXC-1500
use environment:
ambient temperature: -10 to +40 DEG C
Relative humidity: 45 to 95 percent
Atmospheric pressure: 89-106 Kpa
Ambient noise: less than or equal to 60Db
Technical parameters:
working power supply: alternating current 220V + -15% 50 + -2 Hz
Ac voltage range: 0-19.999V/199.99V/600.0V
Accuracy: (+/-) (0.5% reading +0.3% fullness)
Alternating current range: 0-50.00 mA/500.0mA/5.000A
Accuracy: (+/-) (0.5% reading +0.3% fullness)
Direct current voltage range: 0-19.999V/199.99V/600.0V
Accuracy: (+/-) (0.2% reading +0.1% full)
Direct current range: 0-50.00 mA/500.0mA/5.000A
Accuracy: (+/-) (0.2% reading +0.1% full)
Resistance range: 0-199.99 mΩ/199.99 Ω/19.999KΩ
Accuracy: 0.5% reading +0.3% full (200 mΩ or more)
0.5% reading +5mΩ (200 mΩ or less)
Insulation resistance range: 0-199.9 MΩ (DC 500V)
Accuracy: (+/-) (2% reading +1% fullness)
Temperature range: -55-125 DEG C
Accuracy: (+ -1℃)
Action time: 0 to 300S
Accuracy: + -0.01S
Appearance dimension of the instrument: 66cm (length) ×55cm (width) ×33cm (height)
The weight of the instrument is as follows: 20Kg.
A detection method of a portable relay detector comprises the following steps:
step 1, an embedded single chip microcomputer is used for receiving an instruction of an upper computer and sending the instruction to an execution mechanism to execute test logic;
step 2, the embedded single-chip microcomputer collects the contact states of a plurality of signal relays, and calculates the time for executing actions according to the change state signals of the contact states;
step 3, the embedded single chip microcomputer outputs analog signals to the programmable adjustable power supply so as to control the programmable power supply to output voltage and current which are suitable for various relays;
step 4, the running mechanism executes instructions of the embedded single chip microcomputer to switch actions of the signal relay;
and 5, the sensor module transmits the collected signals of the signal relay to the upper computer through the high-speed collection board card, and the upper computer performs analysis and calculation, outputs an instruction and returns to the step 1.
It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the invention includes, but is not limited to, the examples described in the detailed description, as other embodiments derived from the technical solutions of the invention by a person skilled in the art are equally within the scope of the invention.
Claims (5)
1. A portable relay detector, its characterized in that: the intelligent control system comprises a signal relay, an executing mechanism, a programmable power supply, a sensor module, an upper computer and an embedded single chip microcomputer, wherein the signal relay is respectively connected with the sensor module and the embedded single chip microcomputer, the sensor module is connected with the upper computer, the upper computer is connected with the embedded single chip microcomputer, the embedded single chip microcomputer is respectively connected with the programmable power supply and the executing mechanism, the programmable power supply is connected with the executing mechanism, and the executing mechanism is connected with the signal relay.
2. A portable relay detector according to claim 1, wherein: the embedded singlechip is used for receiving an instruction of the upper computer and sending the instruction to the execution mechanism for executing the test logic; collecting contact states of a plurality of signal relays, and calculating the time for executing actions according to the change state signals of the contact states; and outputs analog signals to the programmable adjustable power supply to control the programmable power supply to output voltage and current which are suitable for various relays; the executing mechanism executes the instruction of the embedded single chip microcomputer to switch the action of the signal relay; the signal relay is connected with the sensor module through the bridge rectifier filter circuit so as to provide a stable direct current signal for the sensor module; the sensor module transmits the acquired signals of the signal relay to the upper computer through the high-speed acquisition board.
3. A portable relay detector according to claim 2, wherein: the sensor module comprises a voltage test module and a current test module. The voltage testing module is used for testing rated voltage, magnetizing voltage, releasing voltage and working voltage of the signal relay; the current test module is used for testing rated current, magnetizing current, release current and working current of the signal relay; the resistance detection module is used for testing the coil resistance and the contact resistance of the signal relay; the insulation test module is used for testing insulation resistance of the coil to the ground, the contact to the ground and the coil to the contact group of the signal relay.
4. A portable relay detector according to claim 2, wherein: the signal relay is connected with the sensor module through a bridge type rectifying and filtering circuit, wherein the bridge type rectifying and filtering circuit comprises an inductance coil L1, an inductance coil L2, a capacitance filter C1, a capacitance filter C2, a capacitance filter C3 and a rectifying bridge T, the anode of an alternating current input end is respectively connected with one end of the inductance coil L1 and one end of the capacitance filter C1, the cathode of the alternating current input end is respectively connected with one end of the inductance coil L2 and the other end of the capacitance filter C1, the other end of the inductance coil L1 and the other end of the inductance coil L2 are respectively connected with the input end of the rectifying bridge, the anode of the rectifying bridge is connected with the grounding capacitance filter C2, and the cathode of the rectifying bridge is connected with the grounding capacitance filter C3.
5. A detection method of a portable relay detector according to any one of claims 1 to 4, comprising the steps of:
step 1, an embedded single chip microcomputer is used for receiving an instruction of an upper computer and sending the instruction to an execution mechanism to execute test logic;
step 2, the embedded single-chip microcomputer collects the contact states of a plurality of signal relays, and calculates the time for executing actions according to the change state signals of the contact states;
step 3, the embedded single chip microcomputer outputs analog signals to the programmable adjustable power supply so as to control the programmable power supply to output voltage and current which are suitable for various relays;
step 4, the running mechanism executes instructions of the embedded single chip microcomputer to switch actions of the signal relay;
and 5, the sensor module transmits the collected signals of the signal relay to the upper computer through the high-speed collection board card, and the upper computer performs analysis and calculation, outputs an instruction and returns to the step 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310876064.7A CN116736103A (en) | 2023-07-18 | 2023-07-18 | Portable relay detector and detection method thereof |
| PCT/CN2023/121393 WO2025015709A1 (en) | 2023-07-18 | 2023-09-26 | Portable relay tester and testing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310876064.7A CN116736103A (en) | 2023-07-18 | 2023-07-18 | Portable relay detector and detection method thereof |
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| Publication Number | Publication Date |
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| CN116736103A true CN116736103A (en) | 2023-09-12 |
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| CN202310876064.7A Pending CN116736103A (en) | 2023-07-18 | 2023-07-18 | Portable relay detector and detection method thereof |
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| Country | Link |
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| CN (1) | CN116736103A (en) |
| WO (1) | WO2025015709A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025015709A1 (en) * | 2023-07-18 | 2025-01-23 | 通号工程局集团有限公司 | Portable relay tester and testing method therefor |
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- 2023-09-26 WO PCT/CN2023/121393 patent/WO2025015709A1/en unknown
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