CN107526028A - A kind of test system and method for testing of remote control circuitry plate - Google Patents
A kind of test system and method for testing of remote control circuitry plate Download PDFInfo
- Publication number
- CN107526028A CN107526028A CN201710864427.XA CN201710864427A CN107526028A CN 107526028 A CN107526028 A CN 107526028A CN 201710864427 A CN201710864427 A CN 201710864427A CN 107526028 A CN107526028 A CN 107526028A
- Authority
- CN
- China
- Prior art keywords
- resistance
- test
- chip
- circuit
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 173
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 13
- 230000002159 abnormal effect Effects 0.000 claims description 12
- 230000011664 signaling Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 11
- 239000011159 matrix material Substances 0.000 claims description 10
- 238000004088 simulation Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 description 11
- 239000003990 capacitor Substances 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
Classifications
-
- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
Abstract
The invention provides the test system and method for testing of a kind of remote control circuitry plate in remote control technical field of measurement and test, including tester, liftable test dials and several fix and for clamping the test position fix fixture of circuit board, test dials and be provided with several one-to-one testing needles of test point with each circuit board, test dials is arranged on the surface of test position fix fixture, the test signal that testing needle corresponds to circuit board test point is transferred to tester by testing dials, and circuit board test tester and the test information of display circuit board；The present invention can test multiple circuit boards simultaneously, and automaticity is high, can effectively ensure that test accuracy rate, improve testing efficiency.
Description
Technical field
It is more particularly to a kind of to be used for positioning the instrument for clamping pcb board the present invention relates to a kind of positioning fixture.
Background technology
Prior art is using product model machine as standard, reads in its infrared code value and preserves, carries out product test pair again afterwards
Than test, infrared decoding can only be carried out, including the project such as button, electric current, pattern lamp, backlight is required for manual operation and artificial
Judge, cause the operating time long and often occur the problem of easily erroneous judgement by accident, test accuracy rate can not ensure, a people can only test simultaneously
1 product, testing efficiency are low.
The content of the invention
For in the prior art the defects of, the technology low it is an object of the invention to solve testing efficiency in the prior art
Problem, there is provided a kind of test system and method for testing of remote control circuitry plate, automaticity of the invention is high, can effectively ensure that
Test accuracy rate, testing efficiency are high.
The object of the present invention is achieved like this：A kind of test system of remote control circuitry plate, including tester, liftable
Test dials and several fixations and for clamping the test position fix fixture of circuit board, if the test dials is provided with
The dry one-to-one testing needle of test point with each circuit board, test dials are arranged on the surface of test position fix fixture,
The test signal that the testing needle corresponds to circuit board test point is transferred to tester by testing dials, and the tester includes
Main control chip U8, power circuit, voltage detecting circuit, power supply control consumption power detection circuit, warning circuit, analog matrix button
Circuit and display screen, the power circuit to power supply control consumption power detection circuit, warning circuit, display screen, main control chip U8 and
Circuit board is powered, and the supply voltage of the voltage detecting circuit detection circuit board is simultaneously transferred to main control chip U8, the master control core
Piece U8 controls the action of power supply control consumption power detection circuit, power supply control power consumption inspection according to the supply voltage of the circuit board received
Circuit board is discharged according to main control chip U8 control signal for slowdown monitoring circuit or current measurement, current measurement value are transferred to master control
Chip U8；The analog matrix key circuit is used for the button in analog circuit board, and circuit board feeds back to push button signalling transmission
Main control chip U8, the main control chip U8 are according to voltage detecting value, current measurement value and the push button signalling control alarm received
The action of circuit, main control chip U8 will test information and be sent to display screen, the test information of display circuit board on display screen.
In order to realize the electric signal transmission of circuit board and tester, if being detachably connected with the test position fix fixture
Dry battery, the battery correspond with circuit board, and battery electrically connects with test dials, and the test dials passes through
Winding displacement U13 with 40 pins electrically connects with tester, and the power circuit includes 5V mu balanced circuits and circuit board power supply electricity
Road, battery consume as 5V mu balanced circuits and the input power of circuit board power supply circuit, the 5V mu balanced circuits to power supply control
Power detection circuit, warning circuit, display screen and main control chip U8 power supplies, 5V mu balanced circuits output 5V voltages, 5V voltages Vcc tables
Show, the out-put supply Vdd of the circuit board power supply circuit powers to circuit board.
For the power consumption condition of control board, the power supply control consumption power detection circuit includes optical coupling isolator U7, electricity
Source Vcc connection resistance R33 one end, resistance R33 other end connection optical coupling isolator U7 negative electrode, the optical coupling isolator U7
Anode connection main control chip U8 P3.6 ports, the one of optical coupling isolator U7 colelctor electrode connection resistance R54 and resistance R59
End, resistance R59 connection PNP type triodes Q2 base stage, power supply Vdd connection resistance the R54 other end, triode Q2 emitter stage
With the positive pole of circuit board input power, negative pole, the resistance R48 mono- of the colelctor electrode connection circuit board input power of the triode Q2
End, N-channel FET Q1 drain electrode and resistance R51 one end, the other end connection amplifier chip U9 of the resistance R51 same phase
Input, FET Q1 grid connection resistance R49 one end, resistance R49 other ends connection main control chip U8 P3.7 ports,
5V voltages are powered to amplifier chip U9, amplifier chip U9 inverting input connection resistance R55 one end, amplifier chip U9 output
Mouth connects resistance R55 one end, resistance R52 one end, electric capacity C13 one end and main control chip U8 P1.0 ports, and the resistance R52 is another
One end connection variable resistor R5 one end, adjustable resistance R5 other ends connection resistance R55 one end, the resistance R48 other ends, field effect
Should pipe Q1 source electrode, the resistance R50 other ends and the resistance R55 other ends be grounded.
Whether normal in order to detect the input supply voltage of circuit board, the voltage detecting circuit includes resistance R80, circuit
Plate input power connection resistance R80 one end, the resistance R80 other ends connect resistance R62 and resistance R81 one end, and resistance R62 is another
End connection main control chip U8 P1.1 ports, resistance R81 other ends ground connection；The main control chip U8 is according to the circuit board received
The voltage signal control triode Q2 and FET Q1 of input power break-make.
For the key testing of automatic imitation circuit board, the analog matrix key circuit selects 1 simulation to open including 28
Close chip U2 and U3, the P0.3 ports connection analog switch chip U2 of main control chip U8 enable port and analog switch core
Piece U3 enable port, common port of the common port of the analog switch chip U2 through resistance R5 connection analog switch chips U3,
Analog switch chip U2 independent input port x 0, X1 ... X8 connect respectively winding displacement U13 the 1st pin, the 2nd pin ...
8th pin, the independent input port x 0 of the analog switch chip U3, X1 ... X8 connects U13 the 9th pin, the 10th respectively
Pin ..., the 16th pin, main control chip U8 P0.0 ports, P0.1 ports and P0.2 ports connect analog switch chip respectively
U2 3 numeral selection ends, main control chip U8 P0.4 ports, P0.5 ports and P0.6 ports connect analog switch chip respectively
U3 3 numeral selection ends.
In order to which whether the button on test circuit plate is normal, the tester also includes infrared receiving circuit, described infrared
Receiving circuit includes resistance R67, described power Vcc connection resistance R67 one end and electric capacity C35 one end, winding displacement U13 the 35th pin
Connect resistance R75 one end, resistance R67 other ends connection resistance R68, resistance R70 and resistance R27 one end, the resistance R75 other ends and
The negative pole of resistance R68 other ends connection resistance R69 one end, electric capacity C36 one end and infrared receiving diode IR _ IN, the resistance
R69 connects PNP type triode Q6 base stage, resistance R70 other end connecting triode Q6 current collection with the electric capacity C36 other end
The base stage of pole, electric capacity C37 one end and PNP type triode Q7, the colelctor electrode and electricity of the resistance R27 other end connecting triodes Q7
R53 one end is hindered, the other end of the resistance R53 connects single NOT gate chip U14 input, single NOT gate chip U15 input
With resistance R17 one end, single NOT gate chip U14 output end connection resistance R21 one end, resistance R21 other ends connection light-emitting diodes
Pipe D1 positive pole, the other end connection main control chip U8 of resistance R17 P3.2 ports, single NOT gate chip U15's is defeated
Go out end connection main control chip U8 P3.3 ports；The positive pole of the infrared receiving diode IR _ IN, triode Q6 emitter stage,
The negative pole of the electric capacity C37 other end, triode Q7 emitter stage and light emitting diode D1 is grounded.
In order to test the LED on remote control circuitry plate whether normal work, the tester also includes some groups of LED and surveys
Circuit is tried, the LED test circuits include the negative of reception diode LED _ IN, 5V voltage connection reception diode LED _ IN
Pole, diode (LED) _ IN positive pole connection resistance R19 one end and resistance R22 one end, the resistance R22 other ends connect master control core
Piece U8 P1.2 ports, the resistance R22 other ends are LED test signal input port, and the resistance R19 other end is grounded；Difference group LED
The LED test signal input port I/0 mouths connection different from main control chip U8's of test circuit, the main control chip U8 is according to reception
Whether the LED test signal decision circuitry onboard led lamp arrived is luminous abnormal.
In order to improve the alternative of test job, 4 mode selection buttons, institute are connected with the shell of the tester
State mode selection button and push button signalling is transferred to main control chip U8, the main control chip U8 is according to push button signalling control display screen
The mode selecting information of upper display and the operation of test job.
The method tested using test system, is comprised the following steps：
（1）The circuit board of remote control is placed on test position fix instrument, battery is connected with test position fix instrument, i.e., to system
Upper electricity, main control chip program initialization, display mode information 1 on display screen（Model information）, tester is according to remote control
After model use pattern selection key confirms that model information, model information confirm, test pattern is showed access on display screen, is used
Mode selection button confirmation enters test pattern, and test starts；
（2）The program of main control chip sends analogue-key signal to analog switch chip U2 and analog switch chip U3, and simulation is opened
Close chip and analogue-key signal is sent to by test dials by winding displacement U13, it is corresponding to press if the corresponding button on circuit board is normal
Key, which is pressed and infrared code is sent into infrared receiving circuit, carries out shaping, and the signal after shaping is sent to by infrared receiving circuit
Main control chip, the program in main control chip judges whether corresponding button is pressed according to the infrared signal received, if being pressed,
Then the button is normal, and otherwise, warning circuit is alarmed, the information of display screen display " fail " and button exception；
（3）LED on decision circuitry plate whether normal work, LED test circuits receive the luminance signal of LED, LED tests
Luminance signal after processing is sent to main control chip by circuit, and main control chip program is according to the luminance signal after the processing received
Judge whether LED is normal, if LED is abnormal, warning circuit alarm, display screen display " fail " and LED are abnormal
Information；
（4）If button and LED are normal, the information of display screen display " pass ", i.e., corresponding circuit board testing by,
It can come into operation.
Compared with prior art, the present invention can test different types of machines and can test multiple circuit boards simultaneously the present invention, improve
Testing efficiency；The electric discharge of circuit board, voltage conversion are controllable, realize the control of any button of 8*8 matrixes, pass through each circuit
Set, dropout is fewer, and signal is more continuous, improves the accuracy rate of test；Present invention can apply to test remote control electricity
In the work of road plate.
Brief description of the drawings
Fig. 1 is the structure connection block diagram of the present invention.
Fig. 2 is that the power supply control power consumption in the present invention detects circuit diagram.
Fig. 3 is the infrared receiving circuit figure in the present invention.
Fig. 4 is the voltage detecting road figure in the present invention.
Fig. 5 is the LED test circuit figures in the present invention.
Fig. 6 is the pinouts of the winding displacement U13 in the present invention.
Fig. 7 is the analog matrix key circuit figure in the present invention.
Fig. 8 is the 5V mu balanced circuit figures in the present invention.
Fig. 9 is the circuit board power supply circuit in the present invention.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
A kind of test system of remote control circuitry plate as shown in Fig. 1~Fig. 9, including tester, liftable testing needle
Disk and several fixations and for clamping the test position fix fixture of circuit board, test dials is provided with several and each electricity
The one-to-one testing needle of test point of road plate, test dials are arranged on the surface of test position fix fixture, and testing needle is by circuit
Plate corresponds to the test signal of test point and is transferred to tester by testing dials, tester include main control chip U8, power circuit,
Voltage detecting circuit, power supply control consumption power detection circuit, warning circuit, analog matrix key circuit and display screen, power circuit
To power supply control consumption power detection circuit, warning circuit, display screen, main control chip U8 and circuit board power supply, voltage detecting circuit inspection
The supply voltage of slowdown monitoring circuit plate is simultaneously transferred to main control chip U8, and main control chip U8 is according to the supply voltage control of the circuit board received
The action of power supply control consumption power detection circuit processed, power supply control consume power detection circuit according to main control chip U8 control signal to electricity
Road plate is discharged or current measurement, and current measurement value is transferred to main control chip U8；Analog matrix key circuit is used for simulating electricity
Push button signalling transmission is fed back to main control chip U8 by the button on the plate of road, circuit board, and main control chip U8 is according to the voltage received
The action of detected value, current measurement value and push button signalling control warning circuit, main control chip U8 are sent to display by information is tested
Shield, the test information of display circuit board on display screen.
In order to realize the electric signal transmission of circuit board and tester, several are detachably connected with test position fix fixture
Battery, battery correspond with circuit board, and battery electrically connects with test dials, and test dials passes through with 40 pins
Winding displacement U13 electrically connected with tester, power circuit include 5V mu balanced circuits and circuit board power supply circuit, battery it is steady as 5V
The input power of volt circuit and circuit board power supply circuit, input power is represented using Vcd, 5V mu balanced circuits give power supply control power consumption
Detect circuit, warning circuit, display screen and main control chip U8 power supplies, 5V mu balanced circuits output 5V voltages, 5V voltages Vcc tables
Show, the out-put supply Vdd of circuit board power supply circuit powers to circuit board.
For the power consumption condition of control board, power supply control consumption power detection circuit includes optical coupling isolator U7, power Vcc
Resistance R33 one end, resistance R33 other end connection optical coupling isolator U7 negative electrode are connected, optical coupling isolator U7 anode connects
Meet main control chip U8 P3.6 ports, optical coupling isolator U7 colelctor electrode connection resistance R54 and resistance R59 one end, resistance R59
PNP type triode Q2 base stage is connected, the power supply Vdd connection resistance R54 other end, triode Q2 emitter stage and circuit board are defeated
Enter the positive pole of power supply, the negative pole of triode Q2 colelctor electrode connection circuit board input power, resistance R48 one end, N-channel field-effect
Pipe Q1 drain electrode and resistance R51 one end, resistance R51 other end connection amplifier chip U9 in-phase input end, FET Q1
Grid connection resistance R49 one end, resistance R49 other ends connection main control chip U8 P3.7 ports, 5V voltages are to amplifier chip
U9 powers, amplifier chip U9 inverting input connection resistance R55 one end, amplifier chip U9 delivery outlet connection resistance R55 mono-
End, resistance R52 one end, electric capacity C13 one end and main control chip U8 P1.0 ports, resistance R52 other ends connection variable resistor R5
One end, adjustable resistance R5 other ends connection resistance R55 one end, the resistance R48 other ends, FET Q1 source electrode, resistance R50 are another
One end and the resistance R55 other ends are grounded.
Whether normal in order to detect the input supply voltage of circuit board, voltage detecting circuit includes resistance R80, and circuit board is defeated
Enter power supply connection resistance R80 one end, the resistance R80 other ends connect resistance R62 and resistance R81 one end, and the resistance R62 other ends connect
Connect main control chip U8 P1.1 ports, resistance R81 other ends ground connection；Main control chip U8 is according to the circuit board input power received
Voltage signal control triode Q2 and FET Q1 break-make.
For the key testing of automatic imitation circuit board, analog matrix key circuit include 28 select 1 analog switch core
Piece U2 and U3, main control chip U8 P0.3 ports connection analog switch chip U2 enable port and making for analog switch chip U3
Energy port, common port of the analog switch chip U2 common port through resistance R5 connection analog switch chips U3, analog switch chip
U2 independent input port x 0, X1 ... X8 connect respectively winding displacement U13 the 1st pin, the 2nd pin ... the pins of the 8th, simulation
Switch chip U3 independent input port x 0, X1 ... X8 connect respectively U13 the 9th pin, the 10th pin ... the 16th draws
Pin, main control chip U8 P0.0 ports, P0.1 ports and P0.2 ports connect analog switch chip U2 3 numeral selections respectively
End, main control chip U8 P0.4 ports, P0.5 ports and P0.6 ports connect analog switch chip U3 3 numeral selections respectively
End.
In order to which whether the button on test circuit plate is normal, tester also includes infrared receiving circuit, infrared receiving circuit
Including resistance R67, power Vcc connection resistance R67 one end and electric capacity C35 one end, winding displacement U13 the 35th pin connection resistance R75
One end, resistance R67 other ends connection resistance R68, resistance R70 and resistance R27 one end, the resistance R75 other ends and resistance R68 are another
The negative pole of end connection resistance R69 one end, electric capacity C36 one end and infrared receiving diode IR _ IN, resistance R69 and electric capacity C36's
Other end connection PNP type triode Q6 base stage, resistance R70 other end connecting triode Q6 colelctor electrode, electric capacity C37 one end
With PNP type triode Q7 base stage, resistance R27 other end connecting triodes Q7 colelctor electrode and resistance R53 one end, resistance R53
The other end connect single NOT gate chip U14 input, single NOT gate chip U15 input and resistance R17 one end, single NOT gate core
Piece U14 output end connection resistance R21 one end, resistance R21 other end connecting luminous diodes D1 positive pole, resistance R17's is another
One end connection main control chip U8 P3.2 ports, single NOT gate chip U15 output end connection main control chip U8 P3.3 ports；It is red
Outer reception diode IR _ IN positive pole, triode Q6 emitter stage, the electric capacity C37 other end, triode Q7 emitter stage and
Light emitting diode D1 negative pole is grounded.
In order to test the LED on remote control circuitry plate whether normal work, tester also includes 4 groups of LED test circuits,
One of which LED test circuits include reception diode LED _ IN, 5V voltage connection reception diode LED _ IN negative pole, and two
Pole pipe LED_IN positive pole connection resistance R19 one end and resistance R22 one end, resistance R22 other ends connection main control chip U8's
P1.2 ports, the resistance R22 other ends are LED test signal input port, and the resistance R19 other end is grounded；Each group LED test circuits
Principle it is identical, as shown in Figure 4；The LED test signal input port I/ different from main control chip U8's of difference group LED test circuits
Whether 0 mouthful of connection, main control chip U8 are luminous abnormal according to the LED test signal decision circuitry onboard led lamp received.
In order to improve the alternative of test job, 4 mode selection buttons, pattern choosing are connected with the shell of tester
Select button and push button signalling is transferred to main control chip U8, main control chip U8 is according to the pattern shown in push button signalling control display screen
Select the operation of information and test job.
The method tested using test system, is comprised the following steps：
（1）The circuit board of remote control is placed on test position fix instrument, battery is connected with test position fix instrument, i.e., to system
Upper electricity, main control chip program initialization, display mode information 1 on display screen（Model information）, tester is according to remote control
After model use pattern selection key confirms that model information, model information confirm, test pattern is showed access on display screen, is used
Mode selection button confirmation enters test pattern, and test starts；
（2）The program of main control chip sends analogue-key signal to analog switch chip U2 and analog switch chip U3, and simulation is opened
Close chip and analogue-key signal is sent to by test dials by winding displacement U13, it is corresponding to press if the corresponding button on circuit board is normal
Key, which is pressed and infrared code is sent into infrared receiving circuit, carries out shaping, and the signal after shaping is sent to by infrared receiving circuit
Main control chip, the program in main control chip judges whether corresponding button is pressed according to the infrared signal received, if being pressed,
Then the button is normal, and otherwise, warning circuit is alarmed, the information of display screen display " fail " and button exception；
（3）LED on decision circuitry plate whether normal work, LED test circuits receive the luminance signal of LED, LED tests
Luminance signal after processing is sent to main control chip by circuit, and main control chip program is according to the luminance signal after the processing received
Judge whether LED is normal, if LED is abnormal, warning circuit alarm, display screen display " fail " and LED are abnormal
Information；
（4）If button and LED are normal, the information of display screen display " pass ", i.e., corresponding circuit board testing by,
It can come into operation.
Wherein, as shown in figure 4, battery is as 5V mu balanced circuits and the input power Vcc, 5V of circuit board power supply circuit
Mu balanced circuit includes electric capacity C20, and power Vcc connects electrochemical capacitor C20 positive pole, electric capacity C18 one end and voltage stabilizing chip U11
Input, voltage stabilizing chip U11 output port connection diode D1 positive pole and inductance L1 one end, the inductance L1 other end connect
Connect one end of the Voltage Feedback port of voltage stabilizing chip, electrochemical capacitor C33 positive pole and electric capacity C13, inductance L1 other end output
5V voltages, voltage stabilizing chip U11 grounding ports, electrochemical capacitor C20 negative pole, the electric capacity C18 other end, diode D1 it is negative
The other end of pole, electrochemical capacitor C33 negative pole and electric capacity C13 is grounded；Voltage stabilizing chip U11 model LM2576S.
Circuit board power supply circuit includes voltage stabilizing chip U12, power Vcc connection electric capacity C34 one end and voltage stabilizing chip U12's
Input port, voltage-regulation port connection adjustable resistance R3 one end of voltage stabilizing chip, electric capacity C21 one end, resistance R61 one end, can
Adjust resistance R7 one end and adjustable resistance R4 one end, the voltage output port connection resistance R61 of the voltage stabilizing chip other end, electrolysis electricity
Hold C32 positive pole and electric capacity C24 one end, adjustable resistance R7 other end connection NPN type triode Q5 colelctor electrode, triode
Q5 base stage connection resistance R71 one end, resistance R71 other ends connection main control chip U8 P1.6 ports, adjustable resistance R4's is another
One end connection NPN type triode Q4 colelctor electrode, triode Q4 base stage connection resistance R66 one end, the resistance R66 other end
Connect main control chip U8 P3.5 ports, the electric capacity C34 other end, the adjustable resistance R3 other end, electric capacity C21 the other end,
The other end of triode Q5 emitter stage, triode Q4 emitter stage and electric capacity C24 is grounded, and voltage stabilizing chip U12 voltage is defeated
It is 2.2V-3.6V that exit port, which is exported to the power supply Vdd, Vdd of circuit board power supply magnitude of voltage,；Voltage stabilizing chip U12 model
LM317。
Test job prepares, and to system electrification, the program initialization of main control chip, shows model information, use pattern choosing
Select button confirm type after, on display screen display pattern select information, mode selecting information include test pattern, debugging mode,
Point inspection pattern etc., confirm to enter test pattern using 4 mode selection buttons, test job starts；Voltage detecting circuit passes through
The voltage of testing needle looping test circuit board, it is specific that partial pressure is carried out by R80 and R81 for voltage of the output to remote control to be measured
Acquirement output voltage values are AD converted into main control chip, the determining program in main control chip judges voltage whether just afterwards
Normal scope, if circuit board obtains normal power supply, the low and high level point of main control chip control P3.6 ports and the output of P3.7 ports
Not so that Q1 conductings, Q2 cut-offs, if circuit abnormality causes output voltage higher or be relatively low, main control chip controls P3.6 ports
Cause Q1 cut-offs, Q2 conductings respectively with the low and high level of P3.7 ports output, circuit board immediately enters discharge condition, stop to
Circuit board is powered, main control chip control warning circuit sound and light alarm；During current measurement, main control chip control P3.6 ports and P3.7
The low and high level of port output causes Q1 cut-offs, Q2 cut-offs respectively, and the electric current of remote control circuitry plate produces pressure on resistance R48
Drop, is amplified into main control chip by amplifier U9 and is AD converted, obtain current value, main control chip is according to the electric current received
Whether abnormal it is worth the current value of decision circuitry plate, if current anomaly, main control chip control warning circuit sends sound and light alarm；Master control
Chip passes through the enabled of P0.3 port controlling analog switch chips U2 and U3, analog switch chip U2 and analog switch chip U3 quilts
When enabled, analog switch chip work, main control chip is by controlling P0.0, P0.1, P0.2, P0.4, P0.5 and P0.6 port
Analogue-key is realized in output, for example, P0.0, P0.1, P0.2 port output valve be 0 and P0.4, P0.5 and P0.6 port it is defeated
When to go out value be 0, to button corresponding to the first row first row in analog circuit board, button corresponding to the first row first row by by
Under, circuit board receives button feedback signal by sending infrared code to infrared receiving circuit, infrared receiving diode IR_IN
Shape correction is carried out by NOT gate again after being amplified after infrared code signal by discrete component, the signal after Shape correction is more
Add complete signal, reduce the loss of signal, make signal more continuous, the signal after Shape correction passes through P3.2 and P3.3 ports
Main control chip is sent to, main control chip judges whether button is normal according to the infrared signal received, if button is abnormal, master control
Chip controls warning circuit sends sound and light alarm；Other button principle of simulations are identical with the above, will not be repeated here；Circuit board
On in defined operation, such as button is pressed, and corresponding LED is bright, and luminance signal is transferred to LED test electricity by LED
Road, the reception diode in LED test circuits receive LED luminance signal and are transmitted to main control chip, main control chip root
Judge LED whether in normal work, if LED abnormal work, main control chip control alarm according to the luminance signal received
Circuit sends sound and light alarm；In above all of test, when it is all test by when, warning circuit does not work and shown all the time
Screen display " pass " if having a test not by, then warning circuit sound and light alarm, and show screen display " fail " and
Corresponding test does not pass through information；Compared with prior art, the present invention can test different types of machines and can test simultaneously more the present invention
Individual circuit board, improve testing efficiency；The electric discharge of circuit board, voltage conversion are controllable, realize the control of any button of 8*8 matrixes,
By the setting of each circuit, dropout is fewer, and signal is more continuous, improves the accuracy rate of test；The present invention can apply
In the work of test remote control circuitry plate.
The invention is not limited in above-described embodiment, on the basis of technical scheme disclosed by the invention, the skill of this area
Art personnel are according to disclosed technology contents, it is not necessary to which performing creative labour can makes one to some of which technical characteristic
A little to replace and deform, these are replaced and deformation all falls in the scope of protection of the present invention.
Claims (9)
- A kind of 1. test system of remote control circuitry plate, it is characterised in that：Including tester, liftable test dials and some Individual fixation and for clamping the test position fix fixture of circuit board, the test dials is provided with several and each circuit board The one-to-one testing needle of test point, test dials is arranged on the surface of test position fix fixture, and the testing needle is by circuit The test signal that plate corresponds to test point is transferred to tester by testing dials, and the tester includes main control chip U8, power supply Circuit, voltage detecting circuit, power supply control consumption power detection circuit, warning circuit, analog matrix key circuit and display screen, institute Power circuit is stated to power supply control consumption power detection circuit, warning circuit, display screen, main control chip U8 and circuit board power supply, it is described The supply voltage of voltage detecting circuit detection circuit board is simultaneously transferred to main control chip U8, the main control chip U8 according to receiving The action of the supply voltage control power supply control consumption power detection circuit of circuit board, power supply control consume power detection circuit according to master control core Circuit board is discharged piece U8 control signal or current measurement, and current measurement value is transferred to main control chip U8；The simulation Matrix press-key circuit is used for the button in analog circuit board, and push button signalling transmission is fed back to main control chip U8 by circuit board, described Main control chip U8 controls the action of warning circuit, master control according to the voltage detecting value, current measurement value and the push button signalling that receive Chip U8 will test information and be sent to display screen, the test information of display circuit board on display screen.
- A kind of 2. test system of remote control circuitry plate according to claim 1, it is characterised in that the test position fix folder Several batteries are detachably connected with tool, the battery corresponds with circuit board, battery and test dials electricity Connection, the test dials are electrically connected by the winding displacement U13 with 40 pins with tester, and it is steady that the power circuit includes 5V Volt circuit and circuit board power supply circuit, battery is as 5V mu balanced circuits and the input power of circuit board power supply circuit, the 5V Mu balanced circuit is to power supply control consumption power detection circuit, warning circuit, display screen and main control chip U8 power supplies, the output of 5V mu balanced circuits 5V voltages, 5V voltages represent that the out-put supply Vdd of the circuit board power supply circuit powers to circuit board with Vcc.
- A kind of 3. test system of remote control circuitry plate according to claim 1, it is characterised in that the power supply control consumption Power detection circuit includes optical coupling isolator U7, power Vcc connection resistance R33 one end, resistance R33 other end connection optocoupler every From device U7 negative electrode, the anode connection main control chip U8 of optical coupling isolator U7 P3.6 ports, optical coupling isolator U7 collection Electrode connects resistance R54 and resistance R59 one end, resistance R59 connection PNP type triodes Q2 base stage, power supply Vdd connection resistance The positive pole of the R54 other end, triode Q2 emitter stage and circuit board input power, the colelctor electrode connection electricity of the triode Q2 Negative pole, resistance R48 one end, N-channel FET Q1 drain electrode and resistance R51 one end of road plate input power, the resistance R51 Other end connection amplifier chip U9 in-phase input end, FET Q1 grid connection resistance R49 one end, resistance R49 is another One end connection main control chip U8 P3.7 ports, 5V voltages are powered to amplifier chip U9, and amplifier chip U9 inverting input connects Connecting resistance R55 one end, amplifier chip U9 delivery outlet connection resistance R55 one end, resistance R52 one end, electric capacity C13 one end and master control Chip U8 P1.0 ports, described resistance R52 other ends connection variable resistor R5 one end, adjustable resistance R5 other ends connection resistance R55 one end, the resistance R48 other ends, FET Q1 source electrode, the resistance R50 other ends and the resistance R55 other ends connect Ground.
- A kind of 4. test system of remote control circuitry plate according to claim 3, it is characterised in that the voltage detecting electricity Road includes resistance R80, circuit board input power connection resistance R80 one end, resistance R80 other ends connection resistance R62 and resistance R81 One end, resistance R62 other ends connection main control chip U8 P1.1 ports, resistance R81 other ends ground connection；The main control chip U8 Triode Q2 and FET Q1 break-make is controlled according to the voltage signal of the circuit board input power received.
- 5. the test system of a kind of remote control circuitry plate according to claim 1, it is characterised in that the analog matrix is pressed Key circuit include 28 select 1 analog switch chip U2 and U3, the P0.3 ports connection analog switch core of the main control chip U8 Piece U2 enable port and analog switch chip U3 enable port, the common port of the analog switch chip U2 connect through resistance R5 Connect analog switch chip U3 common port, analog switch chip U2 independent input port x 0, X1 ... X8 connects winding displacement respectively U13 the 1st pin, the 2nd pin ... the pins of the 8th, the independent input port x 0 of the analog switch chip U3, X1 ... X8 Connect respectively U13 the 9th pin, the 10th pin ... the pins of the 16th, main control chip U8 P0.0 ports, P0.1 ports and P0.2 Port connects analog switch chip U2 3 numeral selection ends, main control chip U8 P0.4 ports, P0.5 ports and P0.6 respectively Port connects analog switch chip U3 3 numeral selection ends respectively.
- 6. the test system of a kind of remote control circuitry plate according to claim 2, it is characterised in that the tester is also Including infrared receiving circuit, the infrared receiving circuit includes resistance R67, described power Vcc connection resistance R67 one end and electric capacity C35 one end, winding displacement U13 the 35th pin connection resistance R75 one end, resistance R67 other ends connection resistance R68, resistance R70 and electricity R27 one end is hindered, the resistance R75 other ends connect resistance R69 one end, electric capacity C36 one end and infrared receiver two with the resistance R68 other ends Pole pipe IR _ IN negative pole, the resistance R69 connect PNP type triode Q6 base stage, resistance R70 with the electric capacity C36 other end Other end connecting triode Q6 colelctor electrode, electric capacity C37 one end and PNP type triode Q7 base stage, the resistance R27 is another Connecting triode Q7 colelctor electrode and resistance R53 one end is held, the other end of the resistance R53 connects the defeated of single NOT gate chip U14 Entering end, single NOT gate chip U15 input and resistance R17 one end, single NOT gate chip U14 output end connects resistance R21 one end, Resistance R21 other end connecting luminous diodes D1 positive pole, the other end connection main control chip U8 of resistance R17 P3.2 ends Mouthful, the output end connection main control chip U8 of single NOT gate chip U15 P3.3 ports；Infrared receiving diode IR _ the IN Positive pole, triode Q6 emitter stage, the electric capacity C37 other end, triode Q7 emitter stage and light emitting diode D1 negative pole It is grounded.
- 7. the test system of a kind of remote control circuitry plate according to claim 1, it is characterised in that the tester is also Including some groups of LED test circuits, the LED test circuits include the connection of reception diode LED _ IN, 5V voltage and receive two poles Pipe LED _ IN negative pole, diode (LED) _ IN positive pole connection resistance R19 one end and resistance R22 one end, the resistance R22 are another One end connection main control chip U8 P1.2 ports, the resistance R22 other ends are LED test signal input port, the resistance R19 other end Ground connection；The LED test signal input port I/0 mouths connection different from main control chip U8's of difference group LED test circuits, the master control Whether chip U8 is luminous abnormal according to the LED test signal decision circuitry onboard led lamp received.
- 8. the test system of a kind of remote control circuitry plate according to claim 1, it is characterised in that outside the tester 4 mode selection buttons are connected with shell, push button signalling is transferred to main control chip U8, the master control by the mode selection button Chip U8 is according to the mode selecting information shown in push button signalling control display screen and the operation of test job.
- 9. the method for testing of any one of usage right requirement 1~8 test system, it is characterised in that comprise the following steps：（1）The circuit board of remote control is placed on test position fix instrument, battery is connected with test position fix instrument, i.e., to system Upper electricity, main control chip program initialization, display mode information 1 on display screen（Model information）, tester is according to remote control After model use pattern selection key confirms that model information, model information confirm, test pattern is showed access on display screen, is used Mode selection button confirmation enters test pattern, and test starts；（2）The program of main control chip sends analogue-key signal to analog switch chip U2 and analog switch chip U3, and simulation is opened Close chip and analogue-key signal is sent to by test dials by winding displacement U13, it is corresponding to press if the corresponding button on circuit board is normal Key, which is pressed and infrared code is sent into infrared receiving circuit, carries out shaping, and the signal after shaping is sent to by infrared receiving circuit Main control chip, the program in main control chip judges whether corresponding button is pressed according to the infrared signal received, if being pressed, Then the button is normal, and otherwise, warning circuit is alarmed, the information of display screen display " fail " and button exception；（3）LED on decision circuitry plate whether normal work, LED test circuits receive the luminance signal of LED, LED tests Luminance signal after processing is sent to main control chip by circuit, and main control chip program is according to the luminance signal after the processing received Judge whether LED is normal, if LED is abnormal, warning circuit alarm, display screen display " fail " and LED are abnormal Information；（4）If button and LED are normal, the information of display screen display " pass ", i.e., corresponding circuit board testing by, It can come into operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864427.XA CN107526028A (en) | 2017-09-22 | 2017-09-22 | A kind of test system and method for testing of remote control circuitry plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710864427.XA CN107526028A (en) | 2017-09-22 | 2017-09-22 | A kind of test system and method for testing of remote control circuitry plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107526028A true CN107526028A (en) | 2017-12-29 |
Family
ID=60736134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710864427.XA Pending CN107526028A (en) | 2017-09-22 | 2017-09-22 | A kind of test system and method for testing of remote control circuitry plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107526028A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152716A (en) * | 2018-01-23 | 2018-06-12 | 开封青天伟业流量仪表有限公司 | A kind of electromagnetic flowmeter circuit board automatic test platform and test method |
| CN109725115A (en) * | 2019-03-05 | 2019-05-07 | 深圳市申思科技有限公司 | A kind of equipment of Full-automatic calibration and calibration based on air quality sensor module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571992A (en) * | 2008-04-30 | 2009-11-04 | 杭州士兰微电子股份有限公司 | Systems and method for testing remote controller |
| CN203720286U (en) * | 2014-01-21 | 2014-07-16 | 芜湖美的厨卫电器制造有限公司 | Remote controller function detection device |
| CN103941127A (en) * | 2014-04-29 | 2014-07-23 | 金东纸业（江苏）股份有限公司 | Crane remote control testing device and method |
| CN104034990A (en) * | 2014-06-30 | 2014-09-10 | 珠海格力电器股份有限公司 | Remote control testing method and system |
| CN104680771A (en) * | 2015-03-20 | 2015-06-03 | 蒋海兵 | Device and method for testing infrared remote controller |
| CN104732753A (en) * | 2015-04-09 | 2015-06-24 | 周云侠 | Universal performance tester for infrared remote controls |
| CN207473046U (en) * | 2017-09-22 | 2018-06-08 | 骏升科技（扬州）有限公司 | A kind of test system of remote control circuitry plate |
-
2017
- 2017-09-22 CN CN201710864427.XA patent/CN107526028A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571992A (en) * | 2008-04-30 | 2009-11-04 | 杭州士兰微电子股份有限公司 | Systems and method for testing remote controller |
| CN203720286U (en) * | 2014-01-21 | 2014-07-16 | 芜湖美的厨卫电器制造有限公司 | Remote controller function detection device |
| CN103941127A (en) * | 2014-04-29 | 2014-07-23 | 金东纸业（江苏）股份有限公司 | Crane remote control testing device and method |
| CN104034990A (en) * | 2014-06-30 | 2014-09-10 | 珠海格力电器股份有限公司 | Remote control testing method and system |
| CN104680771A (en) * | 2015-03-20 | 2015-06-03 | 蒋海兵 | Device and method for testing infrared remote controller |
| CN104732753A (en) * | 2015-04-09 | 2015-06-24 | 周云侠 | Universal performance tester for infrared remote controls |
| CN207473046U (en) * | 2017-09-22 | 2018-06-08 | 骏升科技（扬州）有限公司 | A kind of test system of remote control circuitry plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152716A (en) * | 2018-01-23 | 2018-06-12 | 开封青天伟业流量仪表有限公司 | A kind of electromagnetic flowmeter circuit board automatic test platform and test method |
| CN109725115A (en) * | 2019-03-05 | 2019-05-07 | 深圳市申思科技有限公司 | A kind of equipment of Full-automatic calibration and calibration based on air quality sensor module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205080242U (en) | Power strip function test system | |
| CN207473046U (en) | A kind of test system of remote control circuitry plate | |
| CN102520348B (en) | General switch detector | |
| CN202600077U (en) | Multi-board combined test board and test system of remote controller | |
| CN205540264U (en) | Vehicle control unit testing arrangement | |
| CN108762229B (en) | Detection and debugging method for accelerator control system of automatic driving automobile | |
| CN104933928A (en) | Practical training device capable of detecting wiring correctness of circuit automatically | |
| CN206930954U (en) | PCBA function automatic detection systems | |
| CN205404749U (en) | Be applied to veneer automated inspection appearance of smart electric meter production line | |
| CN105094117A (en) | Device for automatically testing functions of electric control plate of air-conditioner indoor set | |
| CN107526028A (en) | A kind of test system and method for testing of remote control circuitry plate | |
| CN106526457A (en) | Circuit board detection instrument and system | |
| CN206505161U (en) | A kind of new and effective key-press status detection circuit | |
| CN205015434U (en) | A test jig for burning record ware switching card | |
| CN105067866B (en) | A kind of common voltage test device | |
| CN107065748A (en) | A kind of detection means of PLC program control logic | |
| CN113359022A (en) | Measuring method, circuit and device for screening optical MOS relay | |
| CN201464915U (en) | Special detection device of control circuit board | |
| CN208477014U (en) | A kind of split-core type meter identifying system | |
| CN106646083A (en) | Servo encoder cable tester and testing method thereof | |
| CN104237573B (en) | Charger for mobile phone ATE | |
| CN106168655A (en) | The high efficiency of a kind of photovoltaic charged luminaire, automatic test fixture | |
| CN205829654U (en) | Power equipment communication test instrument | |
| CN212112228U (en) | Portable battery management system host system detection device | |
| CN105530511B (en) | A kind of test device, test system and its method for remote control reception plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |