CN102156227A - Detecting system and detecting method for non-vehicular charging machine - Google Patents

Abstract

The invention discloses a detection system and a detection method of a non-vehicle type charger. The detection system includes a main control unit, a DC standard meter, an AC standard meter, a DC electronic load, a program-controlled adjustable AC source and a test equipment interface. The detection method is: first connect the charger, then start the detection system, the control command of the main control unit passes through the test control bus to the DC standard meter, AC standard meter, DC electronic load, program-controlled adjustable AC source and test equipment interface, DC standard meter , AC standard table, DC electronic load, program-controlled adjustable AC source and test equipment interface are executed, and the execution results are reported to the main control unit through the test control bus, and the test data is compared with the data of the charger in the main control unit, and finally Draw a conclusion whether the charger is qualified. The detection system and detection method of the present invention are used to test whether the charger is qualified, so as to ensure the interests of users and those who provide charging piles. <u/>

Description

A detection system and detection method of an off-vehicle charger

technical field

The invention relates to a detection system and a detection method of an off-vehicle charger.

Background technique

The charger adopts high-frequency power supply technology and uses advanced intelligent dynamic adjustment charging technology. It adopts constant current/constant voltage/small constant current intelligent three-stage charging method, which has the characteristics of high charging efficiency, simple operation, light weight and small size. And it has multiple protection functions such as reverse connection, overload, short circuit, overheating, etc., as well as delay start, soft start, power-off memory self-start function, etc. The charging function can realize charging by timing, electric degree and amount, and can be used as a terminal for citizens to purchase electricity. However, not all chargers have accurate timing, electricity meter, and metered amount. If there is an error, it cannot be found in time. Therefore, it will not only damage the interests of users, but also may damage the interests of the provider of the charger. Therefore, it has become necessary to invent a special equipment for detecting whether the charger is qualified.

Contents of the invention

The purpose of the present invention is to provide a detection system and detection method for off-board chargers. The technical problem to be solved is to use the detection system and detection method to test whether off-board chargers are qualified, so as to ensure the interests of users and charger providers.

In order to achieve the above purpose, a detection system for off-board chargers includes a main control unit, a DC standard meter, an AC standard meter, a DC electronic load, a program-controlled adjustable AC source, and a test equipment interface; the main control unit communicates with the DC standard meter, AC standard meter, DC electronic load, program-controlled adjustable AC source and test equipment interface connection.

Adopt the step of the detection method of above-mentioned detection system to be:

(1) Connect the test equipment interface to the non-vehicle charger;

(2) Start the detection system of the off-board charger. When starting the test, the main control unit controls the DC electronic load to simulate the work of the off-board charger;

(3) During the test process, the DC standard meter records the DC standard electric energy, and the main control unit automatically calculates the charging amount according to the charging rate inside the charger; the AC standard meter measures the AC voltage regulation accuracy, current regulation accuracy, voltage Ripple and current stabilization; the main control unit tests the AC power consumption and AC harmonics of the off-board charger through the AC standard table; the main control unit tests the power metering, charging, Account management, communication, card reading and writing, data storage, threshold parameter setting functions;

(4) After the test is completed, the main control unit compares the standard electric energy calculated by the DC standard table with the DC electric energy meter of the off-board charger, and calculates the DC electric energy error of the off-board charger; Compare the standard charging amount calculated by the unit with the displayed charging amount of the off-board charger, and calculate the DC energy billing error of the off-board charger;

(5) The main control unit automatically gives the conclusion whether the test is qualified or not according to the comparison result.

As a concrete example, the test equipment interface includes a test output interface and a test input interface, the test output port is connected to the input interface of the off-board charger, the test input interface is connected to the output interface of the off-board charger, the main control unit and the off-board charger connected to the communication interface.

The beneficial effect of the present invention is: set the DC electronic load, and control the work of the DC electronic load through the main control unit, simulate the work of the non-vehicle charger, and control the working state of the DC electronic load according to different charging equipment, so as to improve the efficiency of the test. Accuracy: Through the above-mentioned detection system and detection method test, it can test whether the non-vehicle charger is qualified, so as to ensure the interests of users and those who provide charging piles.

Description of drawings

Fig. 1 is a framework flowchart of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The non-vehicle charger detection system shown in Figure 1 is composed of a main control unit 1, a DC standard meter 2, an AC standard meter 3, a DC electronic load 4, a program-controlled adjustable AC source 6, and a test equipment interface 5; the main control unit 1 is connected with the DC standard meter 2, the AC standard meter 3, the DC electronic load 4, the program-controlled adjustable AC source 6 and the test equipment interface 5 through the test control bus. The control command of the main control unit 1 passes through the test control bus to the DC standard meter 2, the AC standard meter 3, the DC electronic load 4, the program-controlled adjustable AC source 6 and the test equipment interface 5, the DC standard meter 2, the AC standard meter 3, the DC After the electronic load 4, the program-controlled adjustable AC source 6 and the test equipment interface 5 are executed, the execution results are reported to the main control unit through the test control bus.

The test equipment interface 5 includes a test output interface 51 and a test input interface 52 .

Adopt the detection method step of above-mentioned detection system to be:

(1) Connect the test output port 51 to the input interface of the off-board charger, and the test input interface 52 to the output interface of the off-board charger;

(2) Start the non-vehicle charger detection system. When starting the test, the main control unit 1 controls the DC electronic load 4 to work, simulating the work of the charger;

(3) During the test process, the DC standard meter 2 records the DC standard electric energy, and the main control unit 1 automatically calculates the charging amount according to the charging rate inside the charger; Accuracy, voltage ripple and current stability; the main control unit 1 tests the AC power consumption and AC harmonics of the off-board charger through the AC standard table 3; the main control unit 1 tests off-board charging through the communication interface with the off-board charger Electric energy metering, charging, account management, communication, reading and writing cards, data storage, threshold parameter setting functions of the machine;

(4) After the test is completed, the main control unit 1 compares the standard electric energy calculated according to the DC standard table 2 with the DC electric energy meter of the off-board charger, and calculates the DC electric energy error of the off-board charger; the off-board charger detection system is based on The standard charging amount calculated by the main control unit 1 is compared with the displayed charging amount of the off-board charger, and the DC power billing error of the off-board charger is calculated;

(5) The main control unit automatically gives the conclusion whether the test is qualified or not according to the comparison result.

The invention sets a DC electronic load, and controls the operation of the DC electronic load through the main control unit, simulates the operation of the charger, and controls the working state of the DC electronic load according to different charging equipment, so as to improve the accuracy of the test; through the above detection The system and detection method test can test whether the DC charging pile is qualified, so as to ensure the interests of users and those who provide charging piles.

Claims (4)

1. the detection system of a non-vehicle-mounted charge machine is characterized in that: comprise main control unit, direct current standard scale, exchange standard scale, DC electronic load, program control adjustable alternating current source and testing apparatus interface; Main control unit is connected with the testing apparatus interface with direct current standard scale, interchange standard scale, DC electronic load, program control adjustable alternating current source by the test control bus.

2. the detection system of non-vehicle-mounted charge machine according to claim 1 is characterized in that: described testing apparatus interface comprises test output interface and test input interface.

3. the detection method of the detection system of a non-vehicle-mounted charge machine as claimed in claim 1, its feature may further comprise the steps:

(1) the testing apparatus interface is linked on the non-vehicle-mounted charge machine;

(2) detection system of the non-vehicle-mounted charge machine of startup, when beginning to test, main control unit is controlled the DC electronic loaded work piece, simulates the work of non-vehicle-mounted charge machine;

(3) direct current standard scale record direct current standard electric energy in test process, main control unit calculates the amount of money of charging automatically according to the charging rate of charging set inside; Exchange standard scale and measure the voltage precision of voltage regulation, electric current precision of steady current, voltage ripple and the steady ripple of electric current that exchanges; Main control unit is by exchanging AC power dissipation, the AC harmonic that standard scale is tested non-vehicle-mounted charge machine; Main control unit by with the communication interface of non-vehicle-mounted charge machine test non-vehicle-mounted charge machine electric energy metrical, charge, financial management, communicate by letter, read-write card, data storage, threshold parameter be provided with function;

(4) after test was finished, main control unit compared according to the standard electric energy of direct current standard scale calculating and the direct current energy meter of non-vehicle-mounted charge machine, calculates the direct current energy error of non-vehicle-mounted charge machine; The charging amount of money of the standard charging amount of money that non-vehicle-mounted charge machine testing system is calculated according to main control unit and the demonstration of non-vehicle-mounted charge machine compares, and calculates the direct current energy charging error of non-vehicle-mounted charge machine;

(5) whether qualified main control unit provide detection conclusion automatically according to relatively result.

4. the detection method of the detection system of non-vehicle-mounted charge machine according to claim 3, it is characterized in that: the testing apparatus interface comprises test output interface and test input interface, the test output terminal mouth is connected with the input interface of non-vehicle-mounted charge machine, the test input interface is connected with the output interface of non-vehicle-mounted charge machine, and main control unit is connected with the communication interface of non-vehicle-mounted charge machine.

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