CN105652197A - Portable electromagnetic relay tester with wireless communication function - Google Patents

Abstract

A portable electromagnetic relay tester with a wireless communication function comprises a power subsystem, a microcontroller subsystem, a parameter detecting subsystem and a WIFI communication subsystem. The power subsystem comprises a lithium battery charge and discharge management and multipath power circuit. The microcontroller subsystem achieves intelligent control, data processing and data communication functions. The parameter detecting subsystem comprises a voltage parameter detecting circuit, a time parameter detecting circuit and a resistance parameter detecting circuit. The voltage parameter detecting circuit comprises a numerical control power source and a relay state detecting circuit. The WIFI wireless communication subsystem achieves intelligent control and data interaction functions. The relay tester is accurate and reliable in detection and convenient to carry. Compared with a previous tester, the relay tester is more convenient and flexible to use.

Description

A kind of Portable electromagnetic relay tester with radio communication function

Technical field

The present invention relates to Intelligent Measurement and intelligence instrument field, especially the intelligence instrument of parameters of electromagnetic relay.

Background technology

Existing parameters of electromagnetic relay detector, there are the following problems: first bulky heaviness, not readily portable, is not suitable for outside work. Next electromagnetic relay parameter tester on the market is mostly the employing wired connection mode such as serial ports and wired network adapter and carries out data interaction with PC, and a PC can only be communicated by wired with a tester, can not communicate with other-end (such as smart mobile phone, Pad etc.).

Therefore, for the drawbacks described above existed in currently available technology, it is necessary to study in fact, to provide a kind of scheme, it is achieved have the Portable electromagnetic relay tester of radio communication function.

Summary of the invention

Deficiency for above technology, it is provided that a kind of Portable electromagnetic relay tester with radio communication function, including power subsystem, micro-controller subsystem, WIFI communication module. Wherein power subsystem is to adopt lithium ion battery to provide power supply for total system, specifically includes lithium ion battery management of charging and discharging and the supply of each road power supply. Power subsystem solves situation that is not readily portable or that be not suitable for outside work; Wherein WIFI communication module solves not readily portable and with the multi-platform problem communicated, can not improve the utilization rate of the system expandability and PC.

The present invention solves that the technical scheme that technical problem is taked is as follows:

A kind of Portable electromagnetic relay tester with radio communication function, including power subsystem, micro-controller subsystem, parameter detecting subsystem, WIFI communication subsystem, described power subsystem comprises charging and discharging lithium battery management, 15V booster circuit, 5V power circuit, 3.3V power circuit, and described parameter detecting subsystem comprises voltage parameter testing circuit, time parameter testing circuit, resistance parameter testing circuit; Described parameter detecting subsystem data is to carry out data interaction by WIFI with PC or intelligent terminal;

Described voltage parameter testing circuit comprises DCPS digitally controlled power source;

Described DCPS digitally controlled power source is made up of DC/DC manostat and digital regulation resistance;

Described digital regulation resistance is controlled by MCU by I2C bus mode;

Described resistance parameter testing circuit comprises switch mode constant current source;

Described switch mode constant current source is made up of DC/DC manostat and integrated transporting discharging;

Described resistance parameter testing circuit comprises contact resistance and measures;

Described contact resistance is measured and is adopted four line rule of three to measure.

Described power subsystem, the battery-powered mode of lithium-ion electric, solve portable instrument powerup issue.

Described microprocessor subsystem, it is achieved detection controls, data process, the function of data communication.

Described relay parameter detection subsystem, it is provided that parameters of electromagnetic relay is measured more accurately.

Described WIFI communication subsystem, it realizes test data wireless transmission function, adds the utilization rate of data terminal.

Described DCPS digitally controlled power source, comprises the first resistance R1, the second resistance R2, the 3rd resistance R3, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, inductance L, diode D1, the first chip U1, the second chip U2, the 3rd chip U3, the first pricking with needle P1, the first pricking with needle P2;

Described one end of the first resistance R1 is connected with the VL0 foot of the FB foot of the 3rd chip U3, the second chip U2, the other end ground connection of the first resistance R1; One end of second resistance R2 is connected with the SCL pin of the first chip, and the other end of the second resistance R2 is connected with VCC; The SDA pin of the 3rd resistance R3 and the first chip is connected, and the other end of the 3rd resistance R3 is connected with VCC; One end of first electric capacity C1 is connected with the VIN pin of one end of the second electric capacity C2, the 3rd chip U3, and the other end of the first electric capacity is connected to ground; The other end ground connection of the second electric capacity C2; One end ground connection of the 3rd electric capacity C3, the other end and inductance L1 one end, P₂One end, the VL3 pin of the second chip U2, the 4th electric capacity C4 one end be connected, the other end of the 4th electric capacity is connected to the ground; One end of diode D1 is connected with the OUT pin of one end of inductance L1, the 3rd chip U3; The VW0 pin of the second chip is connected with VW1 pin, and VL1 pin is connected with VW2 pin, and VL2 pin is connected with VW3 pin;

The first described chip U1 is STM32F103RBT6 chip; The second described chip U2 is X9241 chip; The 3rd described chip U3 is LM2596-ADJ; The first described resistance R1 resistance is 330 ohm; The second described resistance R2 resistance is 4.7K ohm; The 3rd described resistance R3 resistance is 4.7K ohm; The first described electric capacity C1 capacitance is 220 �� F; The second described electric capacity C2 capacitance is 0.1 �� F; The 3rd described electric capacity C3 capacitance is 220 �� F; The 4th described electric capacity C4 capacitance is 0.1 �� F.

Beneficial effects of the present invention:

First the present invention solves the portable problem of electromagnetic relay; Next to that communications portion adopts wifi communication not only to efficiently solve the problem of detection parameter communication but also can also realize communicating with multi-platform terminal unit.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of a kind of Portable electromagnetic relay tester with radio communication function of the present invention;

Fig. 2 is the present invention and PC WIFI communication scheme

Fig. 3 is power subsystem structured flowchart of the present invention.

Fig. 4 is WIFI module structured flowchart of the present invention.

Fig. 5 is parameter detecting subsystem structure figure of the present invention.

Fig. 6 is DCPS digitally controlled power source circuit diagram of the present invention.

Detailed description of the invention

Illustrate principles of the invention, structure are described further below in conjunction with accompanying drawing.

As it is shown in figure 1, the structured flowchart of a kind of Portable electromagnetic relay tester with radio communication function, power subsystem provides power supply for total system, and power subsystem adopts lithium battery power supply, makes tester become portable set. Microprocessor subsystem realizes detection control, data process, the function of data communication. Relay parameter detection subsystem, it is achieved parameters of electromagnetic relay measuring circuit more accurately. WIFI communication subsystem, it realizes test data wireless transmission function and simplifies telecommunication circuit design, adds the utilization rate of data terminal.

As in figure 2 it is shown, multiple tester for electromagnetic relays communicate with PC or intelligent terminal, improve the utilization rate of PC or intelligent terminal.

As it is shown on figure 3, the internal composition diagram of power subsystem, comprise charging and discharging lithium battery management circuit, 15V power circuit, 5V power circuit, 3.3V power circuit.

As shown in Figure 4, WIFI communication subsystem cut-away view, this WIFI communication subsystem adopts the MCU of Cotex-M3 kernel as main control chip, is attached with wireless network card chip MT5931 by SDIO (secure data input-output card) interface. WIFI communication subsystem is as the bridge of data interaction, by SPI or UART interface and micro-controller subsystem communication, adopts and wirelessly carries out data interaction with PC or intelligent terminal.

As it is shown in figure 5, the structured flowchart of parameter detecting subsystem, parameter subsystem is mainly detected by voltage parameter, time parameter detects, three parts of resistance parameter detection form. Implementation is DCPS digitally controlled power source, intervalometer, constant-current source.

As shown in Figure 6, DCPS digitally controlled power source adjustment module circuit, U1 is single-chip microcomputer, U2 be digital regulation resistance, U3 is blood pressure lowering chip. The resistance value controlling digital regulation resistance adopted by single-chip microcomputer, and then changes reduced output voltage voltage, plays the purpose of program-controlled voltage, and this is the vitals of test electromagnetic relay voltage parameter.

Described DCPS digitally controlled power source, comprises the first resistance R1, the second resistance R2, the 3rd resistance R3, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, inductance L, diode D1, the first chip U1, the second chip U2, the 3rd chip U3, the first pricking with needle P1, the first pricking with needle P2;

Described one end of the first resistance R1 is connected with the VL0 foot of the FB foot of the 3rd chip U3, the second chip U2, the other end ground connection of the first resistance R1; One end of second resistance R2 is connected with the SCL pin of the first chip, and the other end of the second resistance R2 is connected with VCC; The SDA pin of the 3rd resistance R3 and the first chip is connected, and the other end of the 3rd resistance R3 is connected with VCC; One end of first electric capacity C1 is connected with the VIN pin of one end of the second electric capacity C2, the 3rd chip U3, and the other end of the first electric capacity is connected to ground; The other end ground connection of the second electric capacity C2; One end ground connection of the 3rd electric capacity C3, the other end and inductance L1 one end, P₂One end, the VL3 pin of the second chip U2, the 4th electric capacity C4 one end be connected, the other end of the 4th electric capacity is connected to the ground; One end of diode D1 is connected with the OUT pin of one end of inductance L1, the 3rd chip U3; The VW0 pin of the second chip is connected with VW1 pin, and VL1 pin is connected with VW2 pin, and VL2 pin is connected with VW3 pin;

The first described chip U1 is STM32F103RBT6 chip; The second described chip U2 is X9241 chip; The 3rd described chip U3 is LM2596-ADJ; The first described resistance R1 resistance is 330 ohm; The second described resistance R2 resistance is 4.7K ohm; The 3rd described resistance R3 resistance is 4.7K ohm; The first described electric capacity C1 capacitance is 220 �� F; The second described electric capacity C2 capacitance is 0.1 �� F; The 3rd described electric capacity C3 capacitance is 220 �� F; The 4th described electric capacity C4 capacitance is 0.1 �� F.

Above-described embodiment is not the restriction for the present invention, and the present invention is not limited only to above-described embodiment, as long as meeting application claims, belongs to protection scope of the present invention.

Claims (1)

1. a Portable electromagnetic relay tester with radio communication function, it is characterized in that, including power subsystem, micro-controller subsystem, parameter detecting subsystem, WIFI communication subsystem, described power subsystem comprises charging and discharging lithium battery management, 15V booster circuit, 5V power circuit, 3.3V power circuit, and described parameter detecting subsystem comprises voltage parameter testing circuit, time parameter testing circuit, resistance parameter testing circuit;Described parameter detecting subsystem data is to carry out data interaction by WIFI with PC or intelligent terminal:

Described voltage parameter testing circuit comprises DCPS digitally controlled power source; Described DCPS digitally controlled power source is made up of DC/DC manostat and digital regulation resistance; Described digital regulation resistance is controlled by MCU by I2C bus mode;

Described resistance parameter testing circuit comprises switch mode constant current source; Described switch mode constant current source is made up of DC/DC manostat and integrated transporting discharging;

Described resistance parameter testing circuit comprises contact resistance and measures; Described contact resistance is measured and is adopted four line rule of three to measure;

Described DCPS digitally controlled power source, comprises the first resistance R1, the second resistance R2, the 3rd resistance R3, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, inductance L, diode D1, the first chip U1, the second chip U2, the 3rd chip U3, the first pricking with needle P1, the first pricking with needle P2;

Described one end of the first resistance R1 is connected with the VL0 foot of the FB foot of the 3rd chip U3, the second chip U2, the other end ground connection of the first resistance R1; One end of second resistance R2 is connected with the SCL pin of the first chip, and the other end of the second resistance R2 is connected with VCC; The SDA pin of the 3rd resistance R3 and the first chip is connected, and the other end of the 3rd resistance R3 is connected with VCC; One end of first electric capacity C1 is connected with the VIN pin of one end of the second electric capacity C2, the 3rd chip U3, and the other end of the first electric capacity is connected to ground; The other end ground connection of the second electric capacity C2; One end ground connection of the 3rd electric capacity C3, the other end and inductance L1 one end, P₂One end, the VL3 pin of the second chip U2, the 4th electric capacity C4 one end be connected, the other end of the 4th electric capacity is connected to the ground; One end of diode D1 is connected with the OUT pin of one end of inductance L1, the 3rd chip U3; The VW0 pin of the second chip is connected with VW1 pin, and VL1 pin is connected with VW2 pin, and VL2 pin is connected with VW3 pin;

The first described chip U1 is STM32F103RBT6 chip; The second described chip U2 is X9241 chip; The 3rd described chip U3 is LM2596-ADJ; The first described resistance R1 resistance is 330 ohm; The second described resistance R2 resistance is 4.7K ohm; The 3rd described resistance R3 resistance is 4.7K ohm; The first described electric capacity C1 capacitance is 220 �� F; The second described electric capacity C2 capacitance is 0.1 �� F; The 3rd described electric capacity C3 capacitance is 220 �� F; The 4th described electric capacity C4 capacitance is 0.1 �� F.