CN202230151U

CN202230151U - Intelligent gear shifter detection device

Info

Publication number: CN202230151U
Application number: CN2011203295815U
Authority: CN
Inventors: 李自林
Original assignee: SHANGHAI SUNLIGHT OPTO DEVICE CO Ltd
Current assignee: SHANGHAI SUNLIGHT OPTO DEVICE CO Ltd
Priority date: 2011-09-05
Filing date: 2011-09-05
Publication date: 2012-05-23
Anticipated expiration: 2021-09-05

Abstract

The utility model aims to provide an intelligent gear shifter detection device, which comprises a power management unit, a CAN (Controller Area Network) bus unit, an LED (Light Emitting Diode) control detection unit, a detected product power supply control unit, a detected product detection unit, a motor driving unit, an electromagnet driving unit, a display alarm unit and a main control unit; a magnetic field is generated through an electromagnet; in the event of inducing the magnetic field, a sensor on a detected product can output a low-level signal through a corresponding port, so that whether level voltage output by the port is within a qualified range is detected; after detecting, a power supply is short-circuited; the short-circuit performance of the port is tested; the series of detection programs and various project detection indexes are controlled by the main control unit; the intelligent gear shifter detection device is simple in structure and very practical; and the purposes of the intelligent gear shifter detection device disclosed by the utility model are realized.

Description

Intelligent selector pick-up unit

Technical field

The utility model relates to a kind of pick-up unit, particularly a kind of intelligent selector pick-up unit that is used for the automotive gear shifter detection.

Background technology

At present, along with product becomes increasingly complex, need the project of test also more and more.In the prior art, all be one by one each project of product to be tested to the test of product disparity items through artificial mode, such test mode is easy to omit some project, makes some defective productss flow to the customers' place possibly.

In sum, go to handle these test events artificially, need a kind of intelligent selector pick-up unit especially, to overcome the above-mentioned defective that technology exists in order to reduce.

The utility model content

The purpose of the utility model provides a kind of intelligent selector pick-up unit,, only need click " beginning test " button to overcome the above-mentioned defective that prior art exists; Equipment will be by predetermined each project of test procedure test; If when having project to fail through test, equipment can send alerting signal, the tester is easy to determine defective products; Simple in structure, very practical.

The technical matters that the utility model solved can adopt following technical scheme to realize:

A kind of intelligent selector pick-up unit; It is characterized in that it comprises a PMU, a CAN bus unit, a LED control detection unit, a tested article supply control unit, a tested article detecting unit, a motor drive unit, a solenoid actuated unit, a display alarm unit and a main control unit; Said main control unit is connected mutually with said display alarm unit, motor drive unit, CAN bus unit, LED control detection unit, solenoid actuated unit and tested article detecting unit respectively; Said PMU is connected mutually with the solenoid actuated unit with said main control unit, display alarm unit, motor drive unit, CAN bus unit, LED control detection unit respectively; Said CAN bus unit is connected mutually with said tested article detecting unit respectively with LED control detection unit, and said tested article detecting unit connects tested article.

In an embodiment of the utility model, said PMU comprises power management chip U3, resistance R 9, R10, capacitor C 6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16, diode D3, D4 and D5; Vbat end connect respectively an end, the resistance R 10 of capacitor C 8 an end, diode D3 positive pole and diode D4 anodal and be connected Vbat; The other end of the other end of capacitor C 8 and resistance R 10 is connected back ground connection mutually; The negative pole of diode D3 connect respectively capacitor C 6 an end and capacitor C 7 an end and be connected Vs; The other end of the other end of capacitor C 6 and capacitor C 7 is connected mutually and ground connection; The negative pole of diode D4 connects the end of diode D5, an end of capacitor C 9, an end of capacitor C 10, an end of capacitor C 11 and 1 pin of power management chip U3 respectively through resistance R 9 and also is connected+12V; The other end of the other end of the other end of the other end of diode D5, capacitor C 9, capacitor C 10 and capacitor C 11 is connected mutually and ground connection; 4 pin of power management chip U3 are through capacitor C 17 ground connection; The 3 pin ground connection of power management chip U3; 2 pin of power management chip U3 connect the RST end, and 5 pin of power management chip U3 connect an end of an end of capacitor C 12, capacitor C 13, an end of capacitor C 14, an end of capacitor C 15 and an end of capacitor C 16 respectively and also are connected+the 5V power supply, and the other end of the other end of the other end of capacitor C 12, capacitor C 13, the other end of capacitor C 14, capacitor C 15 and the other end of capacitor C 16 are connected mutually and ground connection.

In an embodiment of the utility model, said CAN bus unit comprises transceiving chip U1, common mode inductance U2, resistance R 1, R2, R3, R4, capacitor C 1, C2, C3, C4 and protection device D1; 1 pin of transceiving chip U1 connects the TXD end; 4 pin of transceiving chip U1 connect the RXD end; 8 pin of transceiving chip U1 connect the STB end; 3 pin of transceiving chip U1 connect an end and the connection+5V power supply of capacitor C 1; The other end ground connection of capacitor C 1, the 2 pin ground connection of transceiving chip U1,7 pin of transceiving chip U1 connect and connect first end of common mode inductance U2 and an end of resistance R 1 respectively; 6 pin of transceiving chip U1 connect second end of common mode inductance U2 and an end of resistance R 4; The other end of resistance R 1 connect respectively the 3rd end, the resistance R 2 of common mode inductance U2 an end, capacitor C 2 an end and protection device D1 first end and be connected the CANH end, the other end of resistance R 4 connect respectively the 4th end, the resistance R 3 of common mode inductance U2 an end, capacitor C 4 an end and protection device D1 second end and be connected the CANL end, the other end of the other end of resistance R 2, resistance R 3 and an end of capacitor C 3 are connected and connect 5 pin of transceiving chip U1 mutually; The other end of capacitor C 3 connects the other end of capacitor C 2 and the other end and the ground connection of capacitor C 4 respectively, the 3rd end ground connection of protection device D1.

In an embodiment of the utility model, said LED control detection unit comprises resistance R 11-R32, capacitor C 20-C33 and connector P1; The AD_P end connects an end of resistance R 15, an end of capacitor C 20 and an end of resistance R 13 respectively; The other end of the other end of resistance R 15 and capacitor C 20 is connected mutually and ground connection; The other end of resistance R 13 connect respectively resistance R 11 an end and capacitor C 21 an end and be connected the LED_P end; Other end connection+5V the power supply of resistance R 11, the other end ground connection of capacitor C 21; The AD_R end connects an end of resistance R 20, an end of capacitor C 24 and an end of resistance R 18 respectively; The other end of the other end of resistance R 20 and capacitor C 24 is connected mutually and ground connection; The other end of resistance R 18 connect respectively resistance R 16 an end and capacitor C 25 an end and be connected the LED_R end; Other end connection+5V the power supply of resistance R 16, the other end ground connection of capacitor C 25; The AD_N end connects an end of resistance R 26, an end of capacitor C 28 and an end of resistance R 24 respectively; The other end of the other end of resistance R 26 and capacitor C 28 is connected mutually and ground connection; The other end of resistance R 24 connect respectively resistance R 21 an end and capacitor C 29 an end and be connected the LED_N end; Other end connection+5V the power supply of resistance R 21, the other end ground connection of capacitor C 29; The AD_D end connects an end of resistance R 29, an end of capacitor C 30 and an end of resistance R 28 respectively; The other end of the other end of resistance R 29 and capacitor C 30 is connected mutually and ground connection; The other end of resistance R 28 connect respectively resistance R 27 an end and capacitor C 31 an end and be connected the LED_D end; Other end connection+5V the power supply of resistance R 27, the other end ground connection of capacitor C 31; The AD_W end connects an end of resistance R 32, an end of capacitor C 32 and an end of resistance R 31 respectively; The other end of the other end of resistance R 32 and capacitor C 32 is connected mutually and ground connection; The other end of resistance R 31 connect respectively resistance R 30 an end and capacitor C 33 an end and be connected the LED_W end; Other end connection+5V the power supply of resistance R 30, the other end ground connection of capacitor C 33; The KL30_DT_AD end connects an end of capacitor C 18, an end of resistance R 14 and an end of resistance R 12 respectively; The other end of the other end of capacitor C 18 and resistance R 14 is connected mutually and ground connection; The other end of resistance R 12 connects an end and the KL30_DT end of capacitor C 19, the other end ground connection of capacitor C 19 respectively; The PWM_DT_AD end connects an end of capacitor C 22, an end of resistance R 19 and an end of resistance R 17 respectively; The other end of the other end of capacitor C 22 and resistance R 19 is connected mutually and ground connection; The other end of resistance R 17 connects an end and the PWM_DT end of capacitor C 23, the other end ground connection of capacitor C 23 respectively; The GND_DT_AD end connects an end of capacitor C 26, an end of resistance R 25 and an end of resistance R 23 respectively; The other end of the other end of capacitor C 26 and resistance R 25 is connected mutually and ground connection; The other end of resistance R 23 connects an end of resistance R 22, an end and the GND_DT end of capacitor C 27 respectively; Other end connection+12V the power supply of resistance R 22, the other end ground connection of capacitor C 27; 1 pin of connector P1 connects the PWM_DT end; 2 pin of connector P1 connect the GND_DT end, and 3 pin of connector P1 connect the LED_W end, and 4 pin of connector P1 connect the LED_D end; 5 pin of connector P1 connect the LED_N end; 6 pin of connector P1 connect the LED_R end, and 7 pin of connector P1 connect the LED_P end, and 8 pin of connector P1 connect the KL30_DT end.

In an embodiment of the utility model, said tested article supply control unit comprises capacitor C 34, C35, resistance R 33, R34, R35, R36, R37, R38, diode D6, D7, triode Q4, Q5, Q6, Q7, Q8 and Q9; The emitter of one end of capacitor C 34, an end of resistance R 35, triode Q4 and an end of resistance R 33 are connected mutually and meet Vs; The other end of resistance R 33 connects three grades respectively and hangs the base stage of Q4 and the emitter of triode Q6; One end of the base stage of the collector of the other end of the other end of capacitor C 34, resistance R 35, triode Q4, triode Q6 and resistance R 37 is connected mutually; The collector of triode Q6 connects the PWM end through diode D6; The other end of resistance R 37 connects the collector of triode Q8, and the emitter of triode Q8 is connected mutually and ground connection with base stage, and the base stage of triode Q8 connects the PWM_CT end; The emitter of one end of capacitor C 35, an end of resistance R 36, triode Q5 and an end of resistance R 34 are connected mutually and meet Vs; The other end of resistance R 34 connects three grades respectively and hangs the base stage of Q5 and the emitter of triode Q7; One end of the base stage of the collector of the other end of the other end of capacitor C 35, resistance R 36, triode Q5, triode Q7 and resistance R 38 is connected mutually; The collector of triode Q7 connects the KL15 end through diode D7; The other end of resistance R 38 connects the collector of triode Q9, and the emitter of triode Q9 is connected mutually and ground connection with base stage, and the base stage of triode Q9 connects the KL15_CT end.

In an embodiment of the utility model, said tested article detecting unit comprises resistance R 40, R42, R43, R44, R45, R46, capacitor C 37, C38, diode D8, D9, triode Q10, Q11, photoelectricity coupling chip U4 and connector P2; 1 pin of connector P2 is through resistance R 46 ground connection; 2 pin of connector P2 connect the negative pole of diode D9, and 3 pin of connector P2 connect PWM end, the 4 pin ground connection of connector P2; 5 pin of connector P2 connect the CANL end; 6 pin of connector P2 connect the CANH end, and 7 pin of connector P2 connect Vbat through resistance R 45, and 8 pin of connector P2 connect the KL15 end; The positive pole of diode D9 connects an end of capacitor C 37 and second end of photoelectricity coupling chip U4 respectively; The other end of capacitor C 37 connects an end of resistance R 43 and first end of photoelectricity coupling chip U4 respectively, and the other end of resistance R 43 is through the collector of diode D8 connection triode Q11, and the base stage of triode Q11 connects an end of resistance R 42 and the collector of triode Q10 respectively; The other end ground connection of resistance R 42; The base stage of triode Q10 connects the emitter of triode Q11 and an end of resistance R 40 respectively, and the other end of resistance R 40 connects emitter and the connections+12V power supply of triode Q10, the 3rd end of photoelectricity coupling chip U4 connect respectively resistance R 44 an end and capacitor C 38 an end and be connected SW and hold; Other end connection+5V the power supply of resistance R 44, the other end of capacitor C 38 connect the 4th end and the ground connection of photoelectricity coupling chip U4.

In an embodiment of the utility model, said motor drive unit comprises motor driven chip U6, resistance R 48, capacitor C 44, C45, C46, C47, C48, C49, C50, C51 and C52; 3,10,15,22 pin of motor driven chip U6 connect and connect respectively an end of capacitor C 46 mutually and an end of capacitor C 47 also is connected+the 12V power supply; The other end of the other end of capacitor C 46 and capacitor C 47 is connected mutually and ground connection; 6 pin of motor driven chip U6 connect the SS# end; 4 pin of motor driven chip U6 connect the CLK end, and 5 pin of motor driven chip U6 connect the MOSI end, and 7 pin of motor driven chip U6 connect the MISO end; 8 pin of motor driven chip U6 connect the PWM end; 21 pin of motor driven chip U6 connect the EN end, and 9 pin of motor driven chip U6 connect the STEP end, and 16 pin of motor driven chip U6 are through capacitor C 52 connection+12V power supplys; 18 pin of motor driven chip U6 and 25 pin and ground connection; 19 pin of motor driven chip U6 connect an end of capacitor C 44 and an end of capacitor C 45 respectively, and the other end of the other end of capacitor C 44 and capacitor C 45 is connected mutually and ground connection, and 2 pin of motor driven chip U6 connect an end of capacitor C 51 and connect the QA1 end; 23 pin of motor driven chip U6 connect an end of capacitor C 50 and connect the QA2 end; 11 pin of motor driven chip U6 connect an end of capacitor C 49 and connect the QB1 end, and 14 pin of motor driven chip U6 connect an end of capacitor C 48 and connect the QB2 end, and the other end of the other end of the other end of capacitor C 48, capacitor C 49, the other end of capacitor C 50 and capacitor C 51 is connected mutually and ground connection; 24,13,12 of motor driven chip U6 is connected mutually and ground connection with 1 pin, and 20 pin of motor driven chip U6 connect 17 pin and the ground connection of motor driven chip U6 through resistance R 48.

In an embodiment of the utility model, said solenoid actuated unit comprises resistance R 49, R50, capacitor C 53, diode D10, Zener Z1 and metal-oxide-semiconductor Q12; The Soleniod_CTL end connects an end of resistance R 50, an end of capacitor C 53, the negative pole of Zener Z1 and first end of metal-oxide-semiconductor Q12 respectively through resistance R 49; Second end of the other end of the other end of resistance R 50, capacitor C 53, the positive pole of Zener Z1 and metal-oxide-semiconductor Q12 is connected mutually and ground connection; The 3rd end of metal-oxide-semiconductor connects the anodal of diode D10 and connects the Soleniod-end, and the negative pole of diode D10 connects the Soleniod+ end and connects+the 12V power supply.

In an embodiment of the utility model, said display alarm unit comprises display lcd 1, hummer B1, adjustable potentiometer R5, resistance R 6, R7, R8, capacitor C 5, triode Q1, Q2, Q3, light emitting diode D2 and D3; 16 pin ground connection of display lcd 1; 15 pin of display lcd 1 are through resistance R 6 connection+12V power supplys; 3 pin of display lcd 1 connect the adjustable side of adjustable potentiometer R5, the first link connection+5V power supply of adjustable potentiometer R5, the second link ground connection of adjustable potentiometer R5; 2 pin of display lcd 1 connect an end of capacitor C 5 and connect+the 5V power supply, and 1 pin of display lcd 1 connects the other end and the ground connection of capacitor C 5; The Fail_CT end connects the base stage of triode Q1, the grounded emitter of triode Q1, and the collector of triode Q1 connects the negative pole of light emitting diode D2 through resistance R 7; The Pass_CT end connects the base stage of triode Q2; The grounded emitter of triode Q2, the collector of triode Q2 is through the negative pole of resistance R 8 connection light emitting diode D3, and the positive pole of the positive pole of light emitting diode D2 and light emitting diode D3 is connected mutually and connects+the 12V power supply; The Buzzer_CT end connects the base stage of triode Q3; The grounded emitter of triode Q3, the collector of triode Q3 connects 2 pin of hummer B1, the 1 pin connection+12V power supply of hummer B1.

In an embodiment of the utility model, said main control unit comprises control chip U5, ceramic resonator X1, resistance R 39, R41, R47, capacitor C 36, C39, C40, C41, C42, C43 and connector JP1; The Vbat_AD end connects an end of resistance R 39, an end of resistance R 41 and an end of capacitor C 36 respectively, and the other end of resistance R 39 connects Vbat, and the other end of the other end of capacitor C 36 and resistance R 41 is connected mutually and ground connection; The 36 pin ground connection of control chip U5; 8 pin of control chip U5 connect 5 pin of connector JP1; The 4 pin ground connection of connector JP1; The 6 pin connection+5V power supplys of connector JP1; 1 pin of connector JP1 connects 33 pin of control chip U5; One end of one end of the mutual end that connects and connect capacitor C 39 respectively of 30,4,43 pin of control chip U5, capacitor C 40, an end of capacitor C 41, capacitor C 42 and an end of capacitor C 43 also connect+the 5V power supply, and 42,9,5 pin of control chip U5 connect also mutually and connect the other end of capacitor C 39, the other end of capacitor C 40, the other end of capacitor C 41, the other end of capacitor C 42 and the other end and the ground connection of capacitor C 43 respectively, and 6 pin of control chip U5 connect an end of resistance R 47 and the end of ceramic resonator X1 respectively; 7 pin of control chip U5 connect the other end of resistance R 47 and the other end of ceramic resonator X1 respectively, and the two ends of ceramic resonator X1 connect mutually and ground connection.

The intelligent selector pick-up unit of the utility model produces magnetic field through electromagnet, and the sensor sensing on the product to be detected is during to magnetic field, can be at corresponding ports output low level signal, and whether the level voltage of detection port output is in acceptability limit; After detection finishes, let it, test the short-circuit capability of this port, controlling the detection index of this a series of trace routine and projects by main control unit to power supply short circuit, simple in structure, very practical, realize the purpose of the utility model.

The characteristics of the utility model can consult this case graphic and below better embodiment detailed description and obtain to be well understood to.

Description of drawings

Fig. 1 is the structured flowchart of the intelligent selector pick-up unit of the utility model;

Fig. 2 is the circuit theory diagrams of the PMU of the utility model;

Fig. 3 is the circuit theory diagrams of the CAN bus unit of the utility model;

Fig. 4 is the circuit theory diagrams of the LED control detection unit of the utility model;

Fig. 5 is the circuit theory diagrams of the tested article supply control unit of the utility model;

Fig. 6 is the circuit theory diagrams of the tested article detecting unit of the utility model;

Fig. 7 is the circuit theory diagrams of the motor drive unit of the utility model;

Fig. 8 is the circuit theory diagrams of the solenoid actuated unit of the utility model;

Fig. 9 is the circuit theory diagrams of the display alarm unit of the utility model;

Figure 10 is the circuit theory diagrams of the main control unit of the utility model.

Embodiment

For the technological means, the creation characteristic that make the utility model, reach purpose and effect and be easy to understand and understand, below in conjunction with specific embodiment, further set forth the utility model.

As shown in Figure 1; The intelligent selector pick-up unit of the utility model, it comprises the tested article detecting unit of the tested article supply control unit in a PMU 100, a CAN bus unit 200, a LED control detection unit 300, one 400, one 500, a motor drive unit 600, a solenoid actuated unit 700, a display alarm unit 800 and a main control unit 900; Main control unit 900 is connected mutually with display alarm unit 800, motor drive unit 600, CAN bus unit 200, LED control detection unit 300, solenoid actuated unit 700 and tested article detecting unit 500 respectively; PMU 100 is connected mutually with solenoid actuated unit 700 with main control unit 900, display alarm unit 800, motor drive unit 600, CAN bus unit 200, LED control detection unit 300 respectively; CAN bus unit 200 is connected mutually with tested article detecting unit 500 respectively with LED control detection unit 300, and tested article detecting unit 500 connects tested article.

PMU 100 is for other unit of system provides stable 5V power supply, and the assurance system can operate as normal; Main control unit 900 is connected through the SPI interface with motor drive unit 600, and main control unit 900 sends order through the SPI interface to motor drive unit 600, and the corner of control step motor rotates controlled angle thereby drive magnet; CAN bus unit 200 passes through the Transistor-Transistor Logic level serial communication with main control unit 900, and it is the Physical layer of CAN, forms physical connection with tested article; Whether LED control detection unit 300 is connected with main control unit 900 through the AD mouth, be used to detect tested mouthful of LED control mouth and work; Display alarm unit 800 is through a transformation from serial to parallel IC, and the serial data that main control unit 900 sends changes into after the parallel data and outputs on the parallel port of display alarm unit 800; Main control unit 900 is through IO mouth control solenoid actuated unit 700 drive magnetics, to respond to the Hall element of tested article.

The intelligent selector pick-up unit of the utility model produces magnetic field through electromagnet, and the sensor sensing on the product to be detected is during to magnetic field, can be at corresponding ports output low level signal, and whether the level voltage of detection port output is in acceptability limit; After detection finishes, let it, test the short-circuit capability of this port, controlling the detection index of this a series of trace routine and projects by main control unit 900 power supply short circuit.

As shown in Figure 2, PMU 100 comprises power management chip U3, resistance R 9, R10, capacitor C 6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16, diode D3, D4 and D5; Vbat end connect respectively an end, the resistance R 10 of capacitor C 8 an end, diode D3 positive pole and diode D4 anodal and be connected Vbat; The other end of the other end of capacitor C 8 and resistance R 10 is connected back ground connection mutually; The negative pole of diode D3 connect respectively capacitor C 6 an end and capacitor C 7 an end and be connected Vs; The other end of the other end of capacitor C 6 and capacitor C 7 is connected mutually and ground connection; The negative pole of diode D4 connects the end of diode D5, an end of capacitor C 9, an end of capacitor C 10, an end of capacitor C 11 and 1 pin of power management chip U3 respectively through resistance R 9 and also is connected+12V; The other end of the other end of the other end of the other end of diode D5, capacitor C 9, capacitor C 10 and capacitor C 11 is connected mutually and ground connection; 4 pin of power management chip U3 are through capacitor C 17 ground connection; The 3 pin ground connection of power management chip U3; 2 pin of power management chip U3 connect the RST end, and 5 pin of power management chip U3 connect an end of an end of capacitor C 12, capacitor C 13, an end of capacitor C 14, an end of capacitor C 15 and an end of capacitor C 16 respectively and also are connected+the 5V power supply, and the other end of the other end of the other end of capacitor C 12, capacitor C 13, the other end of capacitor C 14, capacitor C 15 and the other end of capacitor C 16 are connected mutually and ground connection.

Wherein, diode D3 and capacitor C 6 constitute the power supply that tested article are supplied power with C7; Capacitor C 8 is except the ripple of filtering input power supply, and it can also absorb the less power input static of energy; Voltage dependent resistor (VDR) R10 mainly is surge or the high-voltage pulse that absorbs power input; Diode D4 is that power supply is imported anti-reverse protection device, prevents that the power end misconnection from causing system failure when reverse; Resistance R 9 and diode D5 constitute transient pulse and absorb circuit, further absorb the high-voltage pulse from power input, and therefore protection power management chip U3 does not damage; Capacitor C 9, C10 and C11 are the power input filter capacitor, and the stabilized supply voltage input guarantees power management chip U3 ability operate as normal; Capacitor C 17 is an internal reset circuit time electric capacity; Capacitor C 12, C13, C14, C15 and C16 are the input electric capacity of voltage regulation of power management chip U3, the output voltage of stabilized power source managing chip U3.

As shown in Figure 3, said CAN bus unit 200 comprises transceiving chip U1, common mode inductance U2, resistance R 1, R2, R3, R4, capacitor C 1, C2, C3, C4 and protection device D1; 1 pin of transceiving chip U1 connects the TXD end; 4 pin of transceiving chip U1 connect the RXD end; 8 pin of transceiving chip U1 connect the STB end; 3 pin of transceiving chip U1 connect an end and the connection+5V power supply of capacitor C 1; The other end ground connection of capacitor C 1, the 2 pin ground connection of transceiving chip U1,7 pin of transceiving chip U1 connect and connect first end of common mode inductance U2 and an end of resistance R 1 respectively; 6 pin of transceiving chip U1 connect second end of common mode inductance U2 and an end of resistance R 4; The other end of resistance R 1 connect respectively the 3rd end, the resistance R 2 of common mode inductance U2 an end, capacitor C 2 an end and protection device D1 first end and be connected the CANH end, the other end of resistance R 4 connect respectively the 4th end, the resistance R 3 of common mode inductance U2 an end, capacitor C 4 an end and protection device D1 second end and be connected the CANL end, the other end of the other end of resistance R 2, resistance R 3 and an end of capacitor C 3 are connected and connect 5 pin of transceiving chip U1 mutually; The other end of capacitor C 3 connects the other end of capacitor C 2 and the other end and the ground connection of capacitor C 4 respectively, the 3rd end ground connection of protection device D1.

Wherein, the transponder chip U1 of CAN bus is the physical connection chip of bus; Capacitor C 1 is the power supply input pin bypass filter capacitor of transponder chip U1; Common mode inductance U2 is in order to suppress the EMI that bus produces, to reduce bus EMI radiation; Resistance R 2 is the terminating resistor of CAN bus with R3; Capacitor C 2 is the bus termination capacitor with C4; Protection device D1 protection CAN bus port is not because ESD causes damage.

As shown in Figure 4, LED control detection unit 300 comprises resistance R 11-R32, capacitor C 20-C33 and connector P1; The AD_P end connects an end of resistance R 15, an end of capacitor C 20 and an end of resistance R 13 respectively; The other end of the other end of resistance R 15 and capacitor C 20 is connected mutually and ground connection; The other end of resistance R 13 connect respectively resistance R 11 an end and capacitor C 21 an end and be connected the LED_P end; Other end connection+5V the power supply of resistance R 11, the other end ground connection of capacitor C 21; The AD_R end connects an end of resistance R 20, an end of capacitor C 24 and an end of resistance R 18 respectively; The other end of the other end of resistance R 20 and capacitor C 24 is connected mutually and ground connection; The other end of resistance R 18 connect respectively resistance R 16 an end and capacitor C 25 an end and be connected the LED_R end; Other end connection+5V the power supply of resistance R 16, the other end ground connection of capacitor C 25; The AD_N end connects an end of resistance R 26, an end of capacitor C 28 and an end of resistance R 24 respectively; The other end of the other end of resistance R 26 and capacitor C 28 is connected mutually and ground connection; The other end of resistance R 24 connect respectively resistance R 21 an end and capacitor C 29 an end and be connected the LED_N end; Other end connection+5V the power supply of resistance R 21, the other end ground connection of capacitor C 29; The AD_D end connects an end of resistance R 29, an end of capacitor C 30 and an end of resistance R 28 respectively; The other end of the other end of resistance R 29 and capacitor C 30 is connected mutually and ground connection; The other end of resistance R 28 connect respectively resistance R 27 an end and capacitor C 31 an end and be connected the LED_D end; Other end connection+5V the power supply of resistance R 27, the other end ground connection of capacitor C 31; The AD_W end connects an end of resistance R 32, an end of capacitor C 32 and an end of resistance R 31 respectively; The other end of the other end of resistance R 32 and capacitor C 32 is connected mutually and ground connection; The other end of resistance R 31 connect respectively resistance R 30 an end and capacitor C 33 an end and be connected the LED_W end; Other end connection+5V the power supply of resistance R 30, the other end ground connection of capacitor C 33; The KL30_DT_AD end connects an end of capacitor C 18, an end of resistance R 14 and an end of resistance R 12 respectively; The other end of the other end of capacitor C 18 and resistance R 14 is connected mutually and ground connection; The other end of resistance R 12 connects an end and the KL30_DT end of capacitor C 19, the other end ground connection of capacitor C 19 respectively; The PWM_DT_AD end connects an end of capacitor C 22, an end of resistance R 19 and an end of resistance R 17 respectively; The other end of the other end of capacitor C 22 and resistance R 19 is connected mutually and ground connection; The other end of resistance R 17 connects an end and the PWM_DT end of capacitor C 23, the other end ground connection of capacitor C 23 respectively; The GND_DT_AD end connects an end of capacitor C 26, an end of resistance R 25 and an end of resistance R 23 respectively; The other end of the other end of capacitor C 26 and resistance R 25 is connected mutually and ground connection; The other end of resistance R 23 connects an end of resistance R 22, an end and the GND_DT end of capacitor C 27 respectively; Other end connection+12V the power supply of resistance R 22, the other end ground connection of capacitor C 27; 1 pin of connector P1 connects the PWM_DT end; 2 pin of connector P1 connect the GND_DT end, and 3 pin of connector P1 connect the LED_W end, and 4 pin of connector P1 connect the LED_D end; 5 pin of connector P1 connect the LED_N end; 6 pin of connector P1 connect the LED_R end, and 7 pin of connector P1 connect the LED_P end, and 8 pin of connector P1 connect the KL30_DT end.

LED control detection unit 300 is whether detection LED control output pin is in proper working order; Mainly be to reduce the voltage of port through divider resistance, the A/D effected voltage detecting of exporting to control chip U5 again is to know whether these ports are in proper working order.

As shown in Figure 5, tested article supply control unit 400 comprises capacitor C 34, C35, resistance R 33, R34, R35, R36, R37, R38, diode D6, D7, triode Q4, Q5, Q6, Q7, Q8 and Q9; The emitter of one end of capacitor C 34, an end of resistance R 35, triode Q4 and an end of resistance R 33 are connected mutually and meet Vs; The other end of resistance R 33 connects three grades respectively and hangs the base stage of Q4 and the emitter of triode Q6; One end of the base stage of the collector of the other end of the other end of capacitor C 34, resistance R 35, triode Q4, triode Q6 and resistance R 37 is connected mutually; The collector of triode Q6 connects the PWM end through diode D6; The other end of resistance R 37 connects the collector of triode Q8, and the emitter of triode Q8 is connected mutually and ground connection with base stage, and the base stage of triode Q8 connects the PWM_CT end; The emitter of one end of capacitor C 35, an end of resistance R 36, triode Q5 and an end of resistance R 34 are connected mutually and meet Vs; The other end of resistance R 34 connects three grades respectively and hangs the base stage of Q5 and the emitter of triode Q7; One end of the base stage of the collector of the other end of the other end of capacitor C 35, resistance R 36, triode Q5, triode Q7 and resistance R 38 is connected mutually; The collector of triode Q7 connects the KL15 end through diode D7; The other end of resistance R 38 connects the collector of triode Q9, and the emitter of triode Q9 is connected mutually and ground connection with base stage, and the base stage of triode Q9 connects the KL15_CT end.

Wherein, the left side be for product to be detected provides a PWM power supply signal, diode D6 plays unidirectional conducting effect, in case product port failure to be detected, current reversal flows into this pick-up unit; Triode Q6 is the switching tube of this port, and it mainly is the electric current amplification the pwm signal of control chip U5 generation that it and triode Q8 constitute; Triode Q4 and resistance R 33 are used for the current-limiting protection of this port, burn out triode Q6 when preventing this port short circuit of test product; Capacitor C 34 is in order to stablize this circuit, to have prevented faint leakage current generating with resistance R 35; The right is for the test product power supply wakes output port up, in order to wake test product work up.

As shown in Figure 6, tested article detecting unit 500 comprises resistance R 40, R42, R43, R44, R45, R46, capacitor C 37, C38, diode D8, D9, triode Q10, Q11, photoelectricity coupling chip U4 and connector P2; 1 pin of connector P2 is through resistance R 46 ground connection; 2 pin of connector P2 connect the negative pole of diode D9, and 3 pin of connector P2 connect PWM end, the 4 pin ground connection of connector P2; 5 pin of connector P2 connect the CANL end; 6 pin of connector P2 connect the CANH end, and 7 pin of connector P2 connect Vbat through resistance R 45, and 8 pin of connector P2 connect the KL15 end; The positive pole of diode D9 connects an end of capacitor C 37 and second end of photoelectricity coupling chip U4 respectively; The other end of capacitor C 37 connects an end of resistance R 43 and first end of photoelectricity coupling chip U4 respectively, and the other end of resistance R 43 is through the collector of diode D8 connection triode Q11, and the base stage of triode Q11 connects an end of resistance R 42 and the collector of triode Q10 respectively; The other end ground connection of resistance R 42; The base stage of triode Q10 connects the emitter of triode Q11 and an end of resistance R 40 respectively, and the other end of resistance R 40 connects emitter and the connections+12V power supply of triode Q10, the 3rd end of photoelectricity coupling chip U4 connect respectively resistance R 44 an end and capacitor C 38 an end and be connected SW and hold; Other end connection+5V the power supply of resistance R 44, the other end of capacitor C 38 connect the 4th end and the ground connection of photoelectricity coupling chip U4.

Wherein, the connector P2 on the left side is the link to test product; Resistance R 45 is PPTC, and it is that electric current is excessive when preventing that test product power supply input is short-circuited, and damages power supply; Same resistance R 46 also is same purpose; The circuit on the right is a photoelectric isolating circuit; Mainly be whether normally to connect for the switch that detects test product; Resistance R 40, triode Q10, triode Q11 and resistance R 42 have constituted a current-limiting circuit; For the luminotron of photoelectricity coupling chip U4 provides constant electric current, prevent the excessive damage of electric current.

Resistance R 43 is current-limiting resistances, and capacitor C 37 is the electric capacity for photoelectricity coupling chip U4 steady operation; Diode D9 plays unidirectional conducting effect, damages photoelectricity coupling chip U4 in case not-go-end article inverse current flows into; Resistance R 44 is the upper resistance of input of photoelectricity coupling chip U4, and capacitor C 38 is port shunt capacitances.

As shown in Figure 7, motor drive unit 600 comprises motor driven chip U6, resistance R 48, capacitor C 44, C45, C46, C47, C48, C49, C50, C51 and C52; 3,10,15,22 pin of motor driven chip U6 connect and connect respectively an end of capacitor C 46 mutually and an end of capacitor C 47 also is connected+the 12V power supply; The other end of the other end of capacitor C 46 and capacitor C 47 is connected mutually and ground connection; 6 pin of motor driven chip U6 connect the SS# end; 4 pin of motor driven chip U6 connect the CLK end, and 5 pin of motor driven chip U6 connect the MOSI end, and 7 pin of motor driven chip U6 connect the MISO end; 8 pin of motor driven chip U6 connect the PWM end; 21 pin of motor driven chip U6 connect the EN end, and 9 pin of motor driven chip U6 connect the STEP end, and 16 pin of motor driven chip U6 are through capacitor C 52 connection+12V power supplys; 18 pin of motor driven chip U6 and 25 pin and ground connection; 19 pin of motor driven chip U6 connect an end of capacitor C 44 and an end of capacitor C 45 respectively, and the other end of the other end of capacitor C 44 and capacitor C 45 is connected mutually and ground connection, and 2 pin of motor driven chip U6 connect an end of capacitor C 51 and connect the QA1 end; 23 pin of motor driven chip U6 connect an end of capacitor C 50 and connect the QA2 end; 11 pin of motor driven chip U6 connect an end of capacitor C 49 and connect the QB1 end, and 14 pin of motor driven chip U6 connect an end of capacitor C 48 and connect the QB2 end, and the other end of the other end of the other end of capacitor C 48, capacitor C 49, the other end of capacitor C 50 and capacitor C 51 is connected mutually and ground connection; 24,13,12 of motor driven chip U6 is connected mutually and ground connection with 1 pin, and 20 pin of motor driven chip U6 connect 17 pin and the ground connection of motor driven chip U6 through resistance R 48.

Wherein, capacitor C 46 is the power end filter capacitor of motor driven chip U6 with C47; Capacitor C 44 is the steady shape electric capacity of output of motor driven chip U6 sheet internal reference power supply with C45; Capacitor C 52 is that the internal charge pump of motor driven chip U6 produces electric capacity; Resistance R 48 is reference resistances of the inner current limliting of motor driven chip U6; Capacitor C 48, C49, C50 and C51 are the output port electric capacity that motor driven chip U6 exports to step motor, to suppress EMI.

As shown in Figure 8, solenoid actuated unit 700 comprises resistance R 49, R50, capacitor C 53, diode D10, Zener Z1 and metal-oxide-semiconductor Q12; The Soleniod_CTL end connects an end of resistance R 50, an end of capacitor C 53, the negative pole of Zener Z1 and first end of metal-oxide-semiconductor Q12 respectively through resistance R 49; Second end of the other end of the other end of resistance R 50, capacitor C 53, the positive pole of Zener Z1 and metal-oxide-semiconductor Q12 is connected mutually and ground connection; The 3rd end of metal-oxide-semiconductor connects the anodal of diode D10 and connects the Soleniod-end, and the negative pole of diode D10 connects the Soleniod+ end and connects+the 12V power supply.

Wherein, diode D10 is a fly-wheel diode, and the high-tension electromotive force of coil produces when preventing the electromagnet shutoff, prevents other components from being damaged; Low limit MOSEFT type switch Q12 has oneself's excess current, superpotential, high temperature protection mechanism; Zener Z1 is too high for the gate voltage input that prevents low limit MOSEFT type switch Q12, prevents that low limit MOSEFT type switch Q12 from damaging; Resistance R 50 plays the effect of stable low limit MOSEFT type switch Q12 switch; Usually the gate pole input impedance of MOSFET is all bigger, if gate pole is unsettled, the duty of low limit MOSEFT type switch Q12 is just very uncertain; Conducting is sometimes arranged, sometimes can break off.

Capacitor C 53 is in order to increase the input capacitive reactance of low limit MOSEFT type switch Q12, to reduce output voltage gradient; Resistance R 49 is gate pole input current-limiting resistances.

As shown in Figure 9, display alarm unit 800 comprises display lcd 1, hummer B1, adjustable potentiometer R5, resistance R 6, R7, R8, capacitor C 5, triode Q1, Q2, Q3, light emitting diode D2 and D3; 16 pin ground connection of display lcd 1; 15 pin of display lcd 1 are through resistance R 6 connection+12V power supplys; 3 pin of display lcd 1 connect the adjustable side of adjustable potentiometer R5, the first link connection+5V power supply of adjustable potentiometer R5, the second link ground connection of adjustable potentiometer R5; 2 pin of display lcd 1 connect an end of capacitor C 5 and connect+the 5V power supply, and 1 pin of display lcd 1 connects the other end and the ground connection of capacitor C 5; The Fail_CT end connects the base stage of triode Q1, the grounded emitter of triode Q1, and the collector of triode Q1 connects the negative pole of light emitting diode D2 through resistance R 7; The Pass_CT end connects the base stage of triode Q2; The grounded emitter of triode Q2, the collector of triode Q2 is through the negative pole of resistance R 8 connection light emitting diode D3, and the positive pole of the positive pole of light emitting diode D2 and light emitting diode D3 is connected mutually and connects+the 12V power supply; The Buzzer_CT end connects the base stage of triode Q3; The grounded emitter of triode Q3, the collector of triode Q3 connects 2 pin of hummer B1, the 1 pin connection+12V power supply of hummer B1.

Wherein, display lcd 1 is that LCD driven in one 1602 character, mainly is the resultant content that shows test; Resistance R 6 is current-limiting resistances of LCD backlight LED; Adjustable potentiometer R5 is the adjustable potentiometer of liquid crystal display biasing, with the display resolution of regulator solution crystal display; Light emitting diode D2 tests not through indication LED, and when test is not passed through, it will be bright to drive this LED by control chip U5 control triode Q1, and resistance R 7 is its current-limiting resistances; Light emitting diode D3 is that indication LED is passed through in test, and when test was passed through, it was bright to drive this LED by control chip U5 control triode Q2, and resistance R 8 is its current-limiting resistances; Hummer B1 plays warning effect between sound, and it is to be driven by control chip U5 control triode Q3.

Shown in figure 10, main control unit 900 comprises control chip U5, ceramic resonator X1, resistance R 39, R41, R47, capacitor C 36, C39, C40, C41, C42, C43 and connector JP1; The Vbat_AD end connects an end of resistance R 39, an end of resistance R 41 and an end of capacitor C 36 respectively, and the other end of resistance R 39 connects Vbat, and the other end of the other end of capacitor C 36 and resistance R 41 is connected mutually and ground connection; The 36 pin ground connection of control chip U5; 8 pin of control chip U5 connect 5 pin of connector JP1; The 4 pin ground connection of connector JP1; The 6 pin connection+5V power supplys of connector JP1; 1 pin of connector JP1 connects 33 pin of control chip U5; One end of one end of the mutual end that connects and connect capacitor C 39 respectively of 30,4,43 pin of control chip U5, capacitor C 40, an end of capacitor C 41, capacitor C 42 and an end of capacitor C 43 also connect+the 5V power supply, and 42,9,5 pin of control chip U5 connect also mutually and connect the other end of capacitor C 39, the other end of capacitor C 40, the other end of capacitor C 41, the other end of capacitor C 42 and the other end and the ground connection of capacitor C 43 respectively, and 6 pin of control chip U5 connect an end of resistance R 47 and the end of ceramic resonator X1 respectively; 7 pin of control chip U5 connect the other end of resistance R 47 and the other end of ceramic resonator X1 respectively, and the two ends of ceramic resonator X1 connect mutually and ground connection.

Wherein, control chip U5 is the control maincenter of whole test system, and it mainly acts on the voltage of (1) monitoring total system; (2) transmitting-receiving of CAN bus message and processing; (3) control and treatment of display unit; (4) the test product port whether the detection of fault handle; (5) control of step motor; (6) control of other each peripheral hardware and processing.

Capacitor C 39, C40, C41, C42 and C43 are control chip U5 power supply or AD power supply electrofiltration bourbon road electric capacity; Ceramic resonator X1 is that the resistance of this clock circuit one of becomes for control chip U5 work provides clock signal, resistance R 47.

Resistance R 39 is the supply voltage that detects test product with the bleeder circuit that R41 constitutes, and this dividing potential drop is imported by the AD of control chip U5, and obtains through internal calculation, and capacitor C 36 is in order to stablize this voltage.

After system powers on, system initialization, and the operation of testing oneself, whether measure detection voltage simultaneously normal; System reset, the control step motor returns zero-bit, and all pilot lamp are closed, the display screen initialization, electromagnet is closed, main control unit 900 each IO mouth initialization; Tested article are with after system is connected, and CAN bus unit 200 is set up communication; Whether system scan tests beginning, if the beginning would begin following test, otherwise etc. beginning to be tested; Main control unit 900 sends to motor drive unit 600 through the SPI mouth and rotates order, and controlling magnet turns to 90 degree positions; The angle Hall element of tested article is measured its angle; And the main control unit through tested article 900 is handled the back and is dealt into system to angle value through CAN bus unit 200; System judges thus whether tested article angular transducer is in proper working order; And the record measurement result, to measure and accomplish, main control unit 900 controlling magnet is again got back to 0 degree position; Main control unit 900 control electromagnet conducting work; Meeting conducting when 4 Hall switch sensor Facs on the tested article are in proper working order, the single-chip microcomputer of tested article can be tested the conducting state of these 4 Hall switch sensors, and is dealt into system through CAN bus unit 200; System judges thus whether 4 Hall switch sensors of tested article are in proper working order; And the record measurement result, to measure and accomplish, main control unit 900 is controlled electromagnet again and is closed; If can detect its WV when tested article are in proper working order; And be dealt into system to magnitude of voltage through CAN bus unit 200; System compares according to the voltage result that self detects again again, if these two magnitudes of voltage are close, explains that the voltage detection module of tested article is in proper working order; Otherwise be undesired, this test result of system log (SYSLOG); System sends the order of conducting electromagnet through CAN bus unit 200 to tested article; If tested article are in proper working order; Its is understood drive magnetic and triggers the P gear switch disconnection of tested article, breaks off if at this moment system detects the P gear switch, explains that tested article are in proper working order; Otherwise then undesired, this measurement result of system log (SYSLOG); System sends P, R, N through CAN bus unit 200 to tested article successively; D, S respectively refer to the conducting of lamp, if tested article are in proper working order; Then system can detect these port level and can change, if level changes in the scope of regulation, it is qualified that system can be judged as; Otherwise or no change is defective, and simultaneity factor also can write down this test result; The test result of the above projects of system synthesis; Unification judges whether tested article are qualified again, if above test has any one defective, alarm (sending out a warning and buzzer warning) can take place in system; And which is defective to pass through the LCD demonstration; If each item test passes, system can show " PASS ", and gives a green light.

The intelligent selector pick-up unit great advantage of the utility model is one-touch test, is convenient to worker at the production line's operation, and test event can be avoided some project test leakage by the preset program execution.

One-touchly begin test: be provided with one and begin to test the button operation personnel and only need press the button, just can be convenient to worker at the production line's operation by predetermined a series of test procedures execution test events.

Fault article alarm mechanism: when testing the fault article, can send alarm sound, can indicate which project testing not pass through simultaneously, be convenient to employee's maintenance with the prompting operation employee.

Port is prevented short-circuit function: each IO port has all designed anti-short-circuit protection, with prevent these ports by misconnection to the both positive and negative polarity of power supply, or port short circuit and burn out equipment when being the test product fault.

Electromagnet magnetic field: equipment has adopted electromagnet replacement permanent magnet; Do such benefit like this; Because when equipment will be tested each Hall element, the magnetic field intensity in the hall sensing district was to want switch to switch, if adopted permanent magnet; Just need do mechanism and come movable permanent magnet iron, make the magnetic field intensity generation conversion in Hall sensor district come switching field intensity.Adopt electromagnet, just can realize the switching of magnet, and also can increase serviceable life with mechanism.

More than show and described the advantage of ultimate principle, principal character and the utility model of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. intelligent selector pick-up unit; It is characterized in that it comprises a PMU, a CAN EBI physical location, a LED port detecting unit, a tested article supply control unit, a tested article detecting unit, a step motor driven unit, a solenoid actuated unit, a display alarm unit and a main control unit; Said main control unit is connected mutually with said display alarm unit, motor drive unit, CAN bus unit, LED control detection unit, solenoid actuated unit and tested article detecting unit respectively; Said PMU is connected mutually with the solenoid actuated unit with said main control unit, display alarm unit, motor drive unit, CAN bus unit, LED control detection unit respectively; Said CAN bus unit is connected mutually with said tested article detecting unit respectively with LED control detection unit, and said tested article detecting unit connects tested article.

2. intelligent selector pick-up unit according to claim 1; It is characterized in that said PMU comprises power management chip U3, resistance R 9, R10, capacitor C 6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16, diode D3, D4 and D5; Vbat end connect respectively an end, the resistance R 10 of capacitor C 8 an end, diode D3 positive pole and diode D4 anodal and be connected Vbat; The other end of the other end of capacitor C 8 and resistance R 10 is connected back ground connection mutually; The negative pole of diode D3 connect respectively capacitor C 6 an end and capacitor C 7 an end and be connected Vs; The other end of the other end of capacitor C 6 and capacitor C 7 is connected mutually and ground connection; The negative pole of diode D4 connects the end of diode D5, an end of capacitor C 9, an end of capacitor C 10, an end of capacitor C 11 and 1 pin of power management chip U3 respectively through resistance R 9 and also is connected+12V; The other end of the other end of the other end of the other end of diode D5, capacitor C 9, capacitor C 10 and capacitor C 11 is connected mutually and ground connection; 4 pin of power management chip U3 are through capacitor C 17 ground connection; The 3 pin ground connection of power management chip U3; 2 pin of power management chip U3 connect the RST end, and 5 pin of power management chip U3 connect an end of an end of capacitor C 12, capacitor C 13, an end of capacitor C 14, an end of capacitor C 15 and an end of capacitor C 16 respectively and also are connected+the 5V power supply, and the other end of the other end of the other end of capacitor C 12, capacitor C 13, the other end of capacitor C 14, capacitor C 15 and the other end of capacitor C 16 are connected mutually and ground connection.

3. intelligent selector pick-up unit according to claim 1 is characterized in that, said CAN bus unit comprises transceiving chip U1, common mode inductance U2, resistance R 1, R2, R3, R4, capacitor C 1, C2, C3, C4 and protection device D1; 1 pin of transceiving chip U1 connects the TXD end; 4 pin of transceiving chip U1 connect the RXD end; 8 pin of transceiving chip U1 connect the STB end; 3 pin of transceiving chip U1 connect an end and the connection+5V power supply of capacitor C 1; The other end ground connection of capacitor C 1, the 2 pin ground connection of transceiving chip U1,7 pin of transceiving chip U1 connect and connect first end of common mode inductance U2 and an end of resistance R 1 respectively; 6 pin of transceiving chip U1 connect second end of common mode inductance U2 and an end of resistance R 4; The other end of resistance R 1 connect respectively the 3rd end, the resistance R 2 of common mode inductance U2 an end, capacitor C 2 an end and protection device D1 first end and be connected the CANH end, the other end of resistance R 4 connect respectively the 4th end, the resistance R 3 of common mode inductance U2 an end, capacitor C 4 an end and protection device D1 second end and be connected the CANL end, the other end of the other end of resistance R 2, resistance R 3 and an end of capacitor C 3 are connected and connect 5 pin of transceiving chip U1 mutually; The other end of capacitor C 3 connects the other end of capacitor C 2 and the other end and the ground connection of capacitor C 4 respectively, the 3rd end ground connection of protection device D1.

4. intelligent selector pick-up unit according to claim 1 is characterized in that, said LED control detection unit comprises resistance R 11-R32, capacitor C 20-C33 and connector P1; The AD_P end connects an end of resistance R 15, an end of capacitor C 20 and an end of resistance R 13 respectively; The other end of the other end of resistance R 15 and capacitor C 20 is connected mutually and ground connection; The other end of resistance R 13 connect respectively resistance R 11 an end and capacitor C 21 an end and be connected the LED_P end; Other end connection+5V the power supply of resistance R 11, the other end ground connection of capacitor C 21; The AD_R end connects an end of resistance R 20, an end of capacitor C 24 and an end of resistance R 18 respectively; The other end of the other end of resistance R 20 and capacitor C 24 is connected mutually and ground connection; The other end of resistance R 18 connect respectively resistance R 16 an end and capacitor C 25 an end and be connected the LED_R end; Other end connection+5V the power supply of resistance R 16, the other end ground connection of capacitor C 25; The AD_N end connects an end of resistance R 26, an end of capacitor C 28 and an end of resistance R 24 respectively; The other end of the other end of resistance R 26 and capacitor C 28 is connected mutually and ground connection; The other end of resistance R 24 connect respectively resistance R 21 an end and capacitor C 29 an end and be connected the LED_N end; Other end connection+5V the power supply of resistance R 21, the other end ground connection of capacitor C 29; The AD_D end connects an end of resistance R 29, an end of capacitor C 30 and an end of resistance R 28 respectively; The other end of the other end of resistance R 29 and capacitor C 30 is connected mutually and ground connection; The other end of resistance R 28 connect respectively resistance R 27 an end and capacitor C 31 an end and be connected the LED_D end; Other end connection+5V the power supply of resistance R 27, the other end ground connection of capacitor C 31; The AD_W end connects an end of resistance R 32, an end of capacitor C 32 and an end of resistance R 31 respectively; The other end of the other end of resistance R 32 and capacitor C 32 is connected mutually and ground connection; The other end of resistance R 31 connect respectively resistance R 30 an end and capacitor C 33 an end and be connected the LED_W end; Other end connection+5V the power supply of resistance R 30, the other end ground connection of capacitor C 33; The KL30_DT_AD end connects an end of capacitor C 18, an end of resistance R 14 and an end of resistance R 12 respectively; The other end of the other end of capacitor C 18 and resistance R 14 is connected mutually and ground connection; The other end of resistance R 12 connects an end and the KL30_DT end of capacitor C 19, the other end ground connection of capacitor C 19 respectively; The PWM_DT_AD end connects an end of capacitor C 22, an end of resistance R 19 and an end of resistance R 17 respectively; The other end of the other end of capacitor C 22 and resistance R 19 is connected mutually and ground connection; The other end of resistance R 17 connects an end and the PWM_DT end of capacitor C 23, the other end ground connection of capacitor C 23 respectively; The GND_DT_AD end connects an end of capacitor C 26, an end of resistance R 25 and an end of resistance R 23 respectively; The other end of the other end of capacitor C 26 and resistance R 25 is connected mutually and ground connection; The other end of resistance R 23 connects an end of resistance R 22, an end and the GND_DT end of capacitor C 27 respectively; Other end connection+12V the power supply of resistance R 22, the other end ground connection of capacitor C 27; 1 pin of connector P1 connects the PWM_DT end; 2 pin of connector P1 connect the GND_DT end, and 3 pin of connector P1 connect the LED_W end, and 4 pin of connector P1 connect the LED_D end; 5 pin of connector P1 connect the LED_N end; 6 pin of connector P1 connect the LED_R end, and 7 pin of connector P1 connect the LED_P end, and 8 pin of connector P1 connect the KL30_DT end.

5. intelligent selector pick-up unit according to claim 1; It is characterized in that said tested article supply control unit comprises capacitor C 34, C35, resistance R 33, R34, R35, R36, R37, R38, diode D6, D7, triode Q4, Q5, Q6, Q7, Q8 and Q9; The emitter of one end of capacitor C 34, an end of resistance R 35, triode Q4 and an end of resistance R 33 are connected mutually and meet Vs; The other end of resistance R 33 connects three grades respectively and hangs the base stage of Q4 and the emitter of triode Q6; One end of the base stage of the collector of the other end of the other end of capacitor C 34, resistance R 35, triode Q4, triode Q6 and resistance R 37 is connected mutually; The collector of triode Q6 connects the PWM end through diode D6; The other end of resistance R 37 connects the collector of triode Q8, and the emitter of triode Q8 is connected mutually and ground connection with base stage, and the base stage of triode Q8 connects the PWM_CT end; The emitter of one end of capacitor C 35, an end of resistance R 36, triode Q5 and an end of resistance R 34 are connected mutually and meet Vs; The other end of resistance R 34 connects three grades respectively and hangs the base stage of Q5 and the emitter of triode Q7; One end of the base stage of the collector of the other end of the other end of capacitor C 35, resistance R 36, triode Q5, triode Q7 and resistance R 38 is connected mutually; The collector of triode Q7 connects the KL15 end through diode D7; The other end of resistance R 38 connects the collector of triode Q9, and the emitter of triode Q9 is connected mutually and ground connection with base stage, and the base stage of triode Q9 connects the KL15_CT end.

6. intelligent selector pick-up unit according to claim 1; It is characterized in that said tested article detecting unit comprises resistance R 40, R42, R43, R44, R45, R46, capacitor C 37, C38, diode D8, D9, triode Q10, Q11, photoelectricity coupling chip U4 and connector P2; 1 pin of connector P2 is through resistance R 46 ground connection; 2 pin of connector P2 connect the negative pole of diode D9, and 3 pin of connector P2 connect PWM end, the 4 pin ground connection of connector P2; 5 pin of connector P2 connect the CANL end; 6 pin of connector P2 connect the CANH end, and 7 pin of connector P2 connect Vbat through resistance R 45, and 8 pin of connector P2 connect the KL15 end; The positive pole of diode D9 connects an end of capacitor C 37 and second end of photoelectricity coupling chip U4 respectively; The other end of capacitor C 37 connects an end of resistance R 43 and first end of photoelectricity coupling chip U4 respectively, and the other end of resistance R 43 is through the collector of diode D8 connection triode Q11, and the base stage of triode Q11 connects an end of resistance R 42 and the collector of triode Q10 respectively; The other end ground connection of resistance R 42; The base stage of triode Q10 connects the emitter of triode Q11 and an end of resistance R 40 respectively, and the other end of resistance R 40 connects emitter and the connections+12V power supply of triode Q10, the 3rd end of photoelectricity coupling chip U4 connect respectively resistance R 44 an end and capacitor C 38 an end and be connected SW and hold; Other end connection+5V the power supply of resistance R 44, the other end of capacitor C 38 connect the 4th end and the ground connection of photoelectricity coupling chip U4.

7. intelligent selector pick-up unit according to claim 1 is characterized in that said motor drive unit comprises motor driven chip U6, resistance R 48, capacitor C 44, C45, C46, C47, C48, C49, C50, C51 and C52; 3,10,15,22 pin of motor driven chip U6 connect and connect respectively an end of capacitor C 46 mutually and an end of capacitor C 47 also is connected+the 12V power supply; The other end of the other end of capacitor C 46 and capacitor C 47 is connected mutually and ground connection; 6 pin of motor driven chip U6 connect the SS# end; 4 pin of motor driven chip U6 connect the CLK end, and 5 pin of motor driven chip U6 connect the MOSI end, and 7 pin of motor driven chip U6 connect the MISO end; 8 pin of motor driven chip U6 connect the PWM end; 21 pin of motor driven chip U6 connect the EN end, and 9 pin of motor driven chip U6 connect the STEP end, and 16 pin of motor driven chip U6 are through capacitor C 52 connection+12V power supplys; 18 pin of motor driven chip U6 and 25 pin and ground connection; 19 pin of motor driven chip U6 connect an end of capacitor C 44 and an end of capacitor C 45 respectively, and the other end of the other end of capacitor C 44 and capacitor C 45 is connected mutually and ground connection, and 2 pin of motor driven chip U6 connect an end of capacitor C 51 and connect the QA1 end; 23 pin of motor driven chip U6 connect an end of capacitor C 50 and connect the QA2 end; 11 pin of motor driven chip U6 connect an end of capacitor C 49 and connect the QB1 end, and 14 pin of motor driven chip U6 connect an end of capacitor C 48 and connect the QB2 end, and the other end of the other end of the other end of capacitor C 48, capacitor C 49, the other end of capacitor C 50 and capacitor C 51 is connected mutually and ground connection; 24,13,12 of motor driven chip U6 is connected mutually and ground connection with 1 pin, and 20 pin of motor driven chip U6 connect 17 pin and the ground connection of motor driven chip U6 through resistance R 48.

8. intelligent selector pick-up unit according to claim 1 is characterized in that said solenoid actuated unit comprises resistance R 49, R50, capacitor C 53, diode D10, Zener Z1 and metal-oxide-semiconductor Q12; The Soleniod_CTL end connects an end of resistance R 50, an end of capacitor C 53, the negative pole of Zener Z1 and first end of metal-oxide-semiconductor Q12 respectively through resistance R 49; Second end of the other end of the other end of resistance R 50, capacitor C 53, the positive pole of Zener Z1 and metal-oxide-semiconductor Q12 is connected mutually and ground connection; The 3rd end of metal-oxide-semiconductor connects the anodal of diode D10 and connects the Soleniod-end, and the negative pole of diode D10 connects the Soleniod+ end and connects+the 12V power supply.

9. intelligent selector pick-up unit according to claim 1; It is characterized in that said display alarm unit comprises display lcd 1, hummer B1, adjustable potentiometer R5, resistance R 6, R7, R8, capacitor C 5, triode Q1, Q2, Q3, light emitting diode D2 and D3; 16 pin ground connection of display lcd 1; 15 pin of display lcd 1 are through resistance R 6 connection+12V power supplys; 3 pin of display lcd 1 connect the adjustable side of adjustable potentiometer R5, the first link connection+5V power supply of adjustable potentiometer R5, the second link ground connection of adjustable potentiometer R5; 2 pin of display lcd 1 connect an end of capacitor C 5 and connect+the 5V power supply, and 1 pin of display lcd 1 connects the other end and the ground connection of capacitor C 5; The Fail_CT end connects the base stage of triode Q1, the grounded emitter of triode Q1, and the collector of triode Q1 connects the negative pole of light emitting diode D2 through resistance R 7; The Pass_CT end connects the base stage of triode Q2; The grounded emitter of triode Q2, the collector of triode Q2 is through the negative pole of resistance R 8 connection light emitting diode D3, and the positive pole of the positive pole of light emitting diode D2 and light emitting diode D3 is connected mutually and connects+the 12V power supply; The Buzzer_CT end connects the base stage of triode Q3; The grounded emitter of triode Q3, the collector of triode Q3 connects 2 pin of hummer B1, the 1 pin connection+12V power supply of hummer B1.

10. intelligent selector pick-up unit according to claim 1; It is characterized in that said main control unit comprises control chip U5, ceramic resonator X1, resistance R 39, R41, R47, capacitor C 36, C39, C40, C41, C42, C43 and connector JP1; The Vbat_AD end connects an end of resistance R 39, an end of resistance R 41 and an end of capacitor C 36 respectively, and the other end of resistance R 39 connects Vbat, and the other end of the other end of capacitor C 36 and resistance R 41 is connected mutually and ground connection; The 36 pin ground connection of control chip U5; 8 pin of control chip U5 connect 5 pin of connector JP1; The 4 pin ground connection of connector JP1; The 6 pin connection+5V power supplys of connector JP1; 1 pin of connector JP1 connects 33 pin of control chip U5; One end of one end of the mutual end that connects and connect capacitor C 39 respectively of 30,4,43 pin of control chip U5, capacitor C 40, an end of capacitor C 41, capacitor C 42 and an end of capacitor C 43 also connect+the 5V power supply, and 42,9,5 pin of control chip U5 connect also mutually and connect the other end of capacitor C 39, the other end of capacitor C 40, the other end of capacitor C 41, the other end of capacitor C 42 and the other end and the ground connection of capacitor C 43 respectively, and 6 pin of control chip U5 connect an end of resistance R 47 and the end of ceramic resonator X1 respectively; 7 pin of control chip U5 connect the other end of resistance R 47 and the other end of ceramic resonator X1 respectively, and the two ends of ceramic resonator X1 connect mutually and ground connection.