Test method, test apparatus, test system, and storage medium
View Patent ↗A test method, a test apparatus, a test system, and a storage medium are provided, so as to solve the technical problem of how the leakage of a battery cell is detected. The test method of this embodiment of this application includes: (S 10 ) obtaining a CAN signal output by a gas sensor, where the gas sensor is disposed on a test box, and a battery cell is placed in the test box; (S 20 ) determining a gas concentration of a predetermined gas in the test box based on the CAN signal; and (S 30 ) sending a concentration exceedance signal when the gas concentration is higher than a concentration threshold.
1 . A test method used for battery cells, comprising:
obtaining a CAN signal output by a gas sensor, wherein the gas sensor is disposed on a test box, and a battery cell is in the test box;
determining a gas concentration of a predetermined gas in the test box based on the CAN signal; and
sending a concentration exceedance signal when the gas concentration is higher than a concentration threshold, wherein determining the gas concentration of a predetermined gas in the test box comprises:
reading data generated by the gas sensor based on the CAN signal; and
determining the gas concentration of the predetermined gas based on data generated by the gas sensor that comprises:
obtaining an alarm bit flag based on the gas concentration of the predetermined gas;
under the condition that the alarm bit flag is 1, determining that the gas concentration of the predetermined gas is higher than the concentration threshold; and
under the condition that the alarm bit flag is 0, determining that the gas concentration of the predetermined gas is lower than or equal to the concentration threshold.
2 . The test method according to claim 1 , wherein the test method comprises:
modifying the alarm bit flag from 0 to 1 if the gas concentration of the predetermined gas is higher than the concentration threshold within a predetermined duration.
3 . The test method according to claim 1 , wherein sending a concentration exceedance signal when the gas concentration is higher than a concentration threshold comprises:
when the gas concentration is higher than the concentration threshold, controlling a switch to close so as to cause a control circuit to send a boolean signal, and using the boolean signal as the concentration exceedance signal.
4 . The test method according to claim 1 , wherein the test method further comprises:
sending an alarm signal based on the concentration exceedance signal, wherein the alarm signal is used for causing an alarm apparatus to give an alarm.
5 . The test method according to claim 4 , wherein the sending the alarm signal based on the concentration exceedance signal comprises:
loading position information of the gas sensor from the concentration exceedance signal to form the alarm signal, and sending the alarm signal.
6 . A non-volatile computer-readable storage medium comprising computer executable instructions, wherein the computer executable instructions, when being executed by one or more processors, cause the processor(s) to execute the test method according to claim 1 .
7 . A test system, comprising:
a gas sensor, wherein the gas sensor is disposed on a test box, and a battery cell is in the test box; and
a control circuit board, wherein the control circuit board comprises a communication module, and the communication module is connected to the gas sensor and configured to: obtain a CAN signal output by the gas sensor, determine a gas concentration of a predetermined gas in the test box based on the CAN signal, and send a concentration exceedance signal when the gas concentration is higher than a concentration threshold, wherein the communication module is further configured to: read data of the gas sensor based on the CAN signal, and determine the gas concentration of the predetermined gas based on the data generated by the gas sensor; wherein, the communication module is further configured to: obtain an alarm bit flag of the data; under the condition that the alarm bit flag is 1, determine that the gas concentration of the predetermined gas is higher than the concentration threshold; and under the condition that the alarm bit flag is 0, determine that the gas concentration of the predetermined gas is lower than or equal to the concentration threshold.
8 . The test system according to claim 7 , wherein the gas sensor is configured to modify the alarm bit flag from 0 to 1 if the gas concentration measured is higher than the concentration threshold within a predetermined duration.
9 . The test system according to claim 7 , wherein the communication module is configured to: when the gas concentration is higher than the concentration threshold, control a switch of the control circuit board to close so as to cause a control circuit to send a boolean signal, and use the boolean signal as the concentration exceedance signal.
10 . The test system according to claim 7 , wherein the control circuit board further comprises an output module, wherein the output module is configured to send an alarm signal based on the concentration exceedance signal; and
the test system further comprises an alarm controller, wherein the alarm controller is configured to control, based on the alarm signal, an alarm apparatus to give an alarm.
11 . The test method according to claim 10 , wherein the output module is further configured to: load position information of the gas sensor from the concentration exceedance signal to form the alarm signal, and send the alarm signal.
12 . The test system according to claim 7 , wherein the gas sensor is disposed on a side of the test box and located above a height midline of the side.