CN207249078U - A kind of power insert tester - Google Patents

Abstract

The utility model discloses a kind of power insert tester, including main control module, electronic load, warning circuit, programmable power supply module, data acquisition module, input keyboard and display screen, the main control module is connected with electronic load, programmable power supply module and data acquisition module respectively, first output terminal of the main control module and the input terminal of display screen connect, second output terminal of the main control module and the input terminal of warning circuit connect, and the input terminal of the main control module is connected with inputting the output terminal of keyboard.The utility model accurately can be tested power panel by electronic load, programmable power supply module and data acquisition module, both it can be used to repair the LKJ2000 power inserts of failure, whether the performance indicator that can also be used to periodic detection LKJ2000 power inserts changes, prevent trouble before it happens, greatly improve the efficiency of test job so that test job is fast reliable.The utility model can be widely applied in power insert test.

Description

A kind of power insert tester

Technical field

It the utility model is related to power insert technical field of measurement and test, more particularly to a kind of power insert tester.

Background technology

The power insert (hereinafter referred LKJ2000 power inserts) of LKJ2000 train operation monitoring and recording devices is responsible for The vital task of each road power supply is provided to whole LKJ2000 train operation monitoring and recording devices host, power insert failure can be straight Connecing influences complete machine work.

LKJ2000 power inserts do not have self-checking function in itself, and field personnel judges the general side of power insert quality Method is the LED status observed on power insert panel, per the corresponding status indicator lamp of road power supply output, as long as indicator light The bright power supply that is considered as is normal.But power-supply device is not only normal under many circumstances and surpasses without output, output voltage Indicator light still can be bright when going out the allowable error scope of rated value, but may to the component of voltage-sensitive above other plug-in units It can damage or hydraulic performance decline, for example some component requirements supply voltages are 5V ± 5%, may be damaged more than 5V ± 5%.From The situation for directly contributing that component wear is not also worst is said in some sense, because this failure is easily found so as to take Other measures.Sometimes electronic component because power supply instability can cause the hydraulic performance decline of itself, in normal work with it is non-just The edge often to work, is like that time bomb does not know when equally to ignite, this probabilistic failure is more fearful And be caught unprepared, heavy losses can be caused to the lives and properties of the country and people.

The shortcomings that manually method tests LKJ2000 power inserts with universal meter at present：Test process is cumbersome, efficiency pole It is low.Load resistance is the high-power resistance of fixed resistance value, can not accurately test the technical indicator of power insert under different loads. And test result cannot preserve, managerial confusion.

The content of the invention

In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of higher power insert of reliability and surveys Try instrument.

Technical solution adopted in the utility model is：

A kind of power insert tester, including main control module, electronic load, warning circuit, programmable power supply module, data are adopted Collect module, input keyboard and display screen, the main control module respectively with electronic load, programmable power supply module and data acquisition module It is connected, the first output terminal of the main control module and the input terminal of display screen connect, the second output terminal of the main control module It is connected with the input terminal of warning circuit, the input terminal of the main control module is connected with inputting the output terminal of keyboard.

As further improvement of the utility model, the main control module includes microprocessor, memory and communication interface Module, the microprocessor respectively with communication interface modules, memory, electronic load, programmable power supply module and data acquisition module Block is connected, and the first output terminal of the microprocessor and the input terminal of display screen connect, the second output of the microprocessor End is connected with the input terminal of warning circuit, and the input terminal of the microprocessor is connected with inputting the output terminal of keyboard.

As further improvement of the utility model, the data acquisition module includes voltage sensor and current sense Device, the voltage sensor and current sensor are connected with microprocessor.

As further improvement of the utility model, the warning circuit includes first resistor, second resistance, the 3rd electricity Resistance, the 4th resistance, the first capacitance, the second capacitance, the first NPN transistor, the second NPN transistor, the first PNP transistor and buzzing Device, the second output terminal of the microprocessor are connected to the base stage of the first NPN transistor, the current collection of first NPN transistor Pole is connected to the collector of the second NPN transistor by 3rd resistor, and the base stage of first NPN transistor passes through first resistor And then be connected to ground, the emitter of first NPN transistor is connected to ground by the first capacitance, and the first NPN is brilliant The emitter of body pipe is connected to the base stage of the second NPN transistor, the base stage of second NPN transistor by second resistance Pass sequentially through the second capacitance and the 4th resistance and then be connected to the electrode input end of buzzer, the hair of second NPN transistor Emitter-base bandgap grading is connected with the negative input and ground of buzzer respectively, and the collector of second NPN transistor is connected to the first PNP The base stage of transistor, the collector of first NPN transistor are connected with the emitter of the first PNP transistor, and described first The collector of PNP transistor and the electrode input end of buzzer connect.

As further improvement of the utility model, the communication interface modules includes RS485 communication interfaces, RS232 leads to Believe interface, CAN interface and USB interface, the RS485 communication interfaces, RS232 communication interfaces, CAN interface and USB interface with Microprocessor is connected.

The beneficial effects of the utility model are：

A kind of power insert tester of the utility model can by electronic load, programmable power supply module and data acquisition module Accurately power panel is tested, both can be used to repair the LKJ2000 power inserts of failure, it is also possible to carry out periodic detection Whether the performance indicator of LKJ2000 power inserts changes, and prevents trouble before it happens, and greatly improves the efficiency of test job so that test Work is quick reliable.

Brief description of the drawings

Fig. 1 is a kind of functional-block diagram of power insert tester of the utility model；

Fig. 2 is the circuit diagram of warning circuit in a kind of power insert tester of the utility model.

Embodiment

Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：

With reference to figure 1, a kind of power insert tester of the utility model, including main control module, electronic load, warning circuit, Programmable power supply module, data acquisition module, input keyboard and display screen, the main control module respectively with electronic load, program-controlled electric Source module is connected with data acquisition module, and the first output terminal of the main control module and the input terminal of display screen connect, described Second output terminal of main control module and the input terminal of warning circuit connect, and the input terminal of the main control module is with inputting the defeated of keyboard Outlet connects.

Preferred embodiment is further used as, the main control module includes microprocessor, memory and communication interface mould Block, the microprocessor respectively with communication interface modules, memory, electronic load, programmable power supply module and data acquisition module It is connected, the first output terminal of the microprocessor and the input terminal of display screen connect, the second output terminal of the microprocessor It is connected with the input terminal of warning circuit, the input terminal of the microprocessor is connected with inputting the output terminal of keyboard.

Preferred embodiment is further used as, the data acquisition module includes voltage sensor and current sensor, The voltage sensor and current sensor are connected with microprocessor.

With reference to figure 2, preferred embodiment is further used as, the warning circuit includes first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the first capacitance C1, the second capacitance C2, the first NPN transistor N1, the second NPN transistor N2, the first PNP transistor P1 and buzzer, the 3rd output terminal of the microprocessor are connected to the base of the first NPN transistor N1 Pole, the collector of the first NPN transistor N1 are connected to the collector of the second NPN transistor N2, institute by 3rd resistor R3 The base stage for stating the first NPN transistor N1 is connected to ground by first resistor R1, the emitter of the first NPN transistor N1 It is connected to ground by the first capacitance C1, the emitter of the first NPN transistor N1 is by second resistance R2 and then connection To the base stage of the second NPN transistor N2, the base stage of the second NPN transistor N2 passes sequentially through the second capacitance C2 and the 4th resistance R4 and then the electrode input end for being connected to buzzer, the emitter of the second NPN transistor N2 anode with buzzer respectively Input terminal is connected with ground, and the collector of the second NPN transistor N2 is connected to the base stage of the first PNP transistor P1, described The collector of first NPN transistor N1 is connected with the emitter of the first PNP transistor P1, the first PNP transistor P1's The electrode input end of collector and buzzer connects.In the present embodiment, the first capacitance C1 uses electrolytic capacitor, and described first The emitter access 6V voltages of PNP transistor P1, after microprocessor sends signal, the buzzer can send last for several seconds Alarm signal.

Preferred embodiment is further used as, the communication interface modules includes RS485 communication interfaces, RS232 communicates Interface, CAN interface and USB interface, the RS485 communication interfaces, RS232 communication interfaces, CAN interface and USB interface with it is micro- Processor is connected.Multiple communication interfaces are used to connect USB storage and printer etc..

In the utility model embodiment, integration test is mainly carried out to LKJ2000 power inserts, it is necessary to analyze The working environment of LKJ2000 power inserts, per road voltage output range and load capacity, in all clear and definite premise of indices Under, the actual environment of analog power plate work, to every road out-put supply plus suitable load, the performance of test power panel output Index.

The programmable power supply module is responsible for powering to power panel to be measured, and different voltages, program-controlled electric are provided according to arrange parameter Source module and main control module communicate, and receive instruction and the return information of main control module, are controlled according to the instruction of main control module Power supply to output is controlled.

The electronic load is used to provide load to tested power panel, and electronic load and main control module communicate, and receive The instruction of main control module and return information, suitable bear is provided according to the instruction of main control module to every road power supply of power panel to be measured Carry.

The programmable power supply module of DC30V~160V is provided in the present embodiment for LKJ2000 power inserts, tests LKJ2000 Whether power insert works reliable in full voltage range.

Output in the present embodiment for LKJ2000 power inserts provides program-control electronic load, program-controlled setting actual loading It is the 0~150% of respective channel nominal load, can accurately studies the carrying load ability of every road power supply output.

Output in the present embodiment for LKJ2000 power inserts provides program-control electronic load, program-controlled setting actual loading It is that respective channel nominal load has collection voltages change curve during the test.

The automatic test of LKJ2000 power inserts is realized in the present embodiment, and test result can be passed through communication interface Module is exported to external memory storage to be preserved and exported to printer and printed.

From the foregoing it can be that the utility model can be accurate by electronic load, programmable power supply module and data acquisition module Really power panel is tested, both can be used to repair the LKJ2000 power inserts of failure, it is also possible to carry out periodic detection Whether the performance indicator of LKJ2000 power inserts changes, and prevents trouble before it happens, and greatly improves the efficiency of test job so that test Work is quick reliable.

Above is the preferable of the utility model is implemented to be illustrated, but the utility model is created and is not limited to institute State embodiment, those skilled in the art can also make a variety of etc. on the premise of without prejudice to the utility model spirit With deformation or replace, these equivalent deformations or replacement are all contained in the application claim limited range.

Claims (5)

1. A kind of 1. power insert tester, it is characterised in that：Including main control module, electronic load, warning circuit, programmable power supply mould Block, data acquisition module, input keyboard and display screen, the main control module respectively with electronic load, programmable power supply module sum number It is connected according to acquisition module, the first output terminal of the main control module and the input terminal of display screen connect, the main control module The input terminal of second output terminal and warning circuit connects, and the input terminal of the main control module is connected with inputting the output terminal of keyboard.
2. A kind of 2. power insert tester according to claim 1, it is characterised in that：The main control module includes microprocessor Device, memory and communication interface modules, the microprocessor respectively with communication interface modules, memory, electronic load, program-controlled electric Source module is connected with data acquisition module, and the first output terminal of the microprocessor and the input terminal of display screen connect, described Second output terminal of microprocessor and the input terminal of warning circuit connect, and the input terminal of the microprocessor is with inputting the defeated of keyboard Outlet connects.
3. A kind of 3. power insert tester according to claim 2, it is characterised in that：The data acquisition module includes electricity Pressure sensor and current sensor, the voltage sensor and current sensor are connected with microprocessor.
4. A kind of 4. power insert tester according to claim 2, it is characterised in that：The warning circuit includes the first electricity Resistance, second resistance, 3rd resistor, the 4th resistance, the first capacitance, the second capacitance, the first NPN transistor, the second NPN transistor, First PNP transistor and buzzer, the second output terminal of the microprocessor is connected to the base stage of the first NPN transistor, described The collector of first NPN transistor is connected to the collector of the second NPN transistor, the first NPN crystal by 3rd resistor The base stage of pipe is connected to ground by first resistor, the emitter of first NPN transistor by the first capacitance and then with Ground connects, and the emitter of first NPN transistor is connected to the base stage of the second NPN transistor, institute by second resistance The base stage for stating the second NPN transistor passes sequentially through the second capacitance and the 4th resistance and then is connected to the electrode input end of buzzer, The emitter of second NPN transistor is connected with the negative input and ground of buzzer respectively, second NPN transistor Collector be connected to the base stage of the first PNP transistor, the collector of first NPN transistor and the first PNP transistor Emitter is connected, and the collector of first PNP transistor and the electrode input end of buzzer connect.
5. A kind of 5. power insert tester according to claim 2, it is characterised in that：The communication interface modules includes RS485 communication interfaces, RS232 communication interfaces, CAN interface and USB interface, the RS485 communication interfaces, RS232 communication interfaces, CAN interface and USB interface are connected with microprocessor.