CN113376535A - Automatic testing system of new energy battery - Google Patents
Automatic testing system of new energy battery Download PDFInfo
- Publication number
- CN113376535A CN113376535A CN202110681370.6A CN202110681370A CN113376535A CN 113376535 A CN113376535 A CN 113376535A CN 202110681370 A CN202110681370 A CN 202110681370A CN 113376535 A CN113376535 A CN 113376535A
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- cpu
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- energy battery
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an automatic new energy battery testing system in the technical field of new energy battery testing, which comprises a CPU module and a relay control module which are respectively and independently integrated, wherein the CPU module is communicated with an upper computer in a control and response closed-loop control mode, the CPU module is connected with the relay control module through an isolation chip, a plurality of groups of parallel relay groups are arranged in the relay control module, and the relay groups are respectively connected with a testing battery and used for testing various performances of the testing battery. The invention meets the requirements of the existing new energy battery automation test on multiple purposes and integration by adopting open and modularized specifications, is suitable for quickly realizing the requirements of an automation scheme on functions, reliability, cost, volume, power consumption and the like, and can be flexibly configured according to the requirements of users according to the application of a plurality of groups of relay groups, thereby providing a universal, flexible and standardized automation control system for the users.
Description
Technical Field
The invention relates to the technical field of new energy battery testing, in particular to an automatic new energy battery testing system.
Background
The new energy automobile battery is a novel automobile battery which reduces the emission pollution of greenhouse gases by using a new energy technology, and the new energy automobile battery is more and more innovated along with the development of new energy automobiles. After the new energy battery is produced, the performance condition of the new energy battery determines the performance, safety and service life of the new energy automobile, so that the performance test of the new energy battery is a crucial link.
The existing test system for the new energy battery cannot expand and revise the test process after being formed, a user cannot carry out autonomous configuration, and in addition, the existing test system for the new energy battery only has the function superposition of various test modules, so that the integration degree of the system is lower, and the requirements of current multi-purpose and integration are not facilitated.
The above-mentioned drawbacks are worth solving.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an automatic testing system for a new energy battery.
The technical scheme of the invention is as follows:
the utility model provides an automatic test system of new energy battery, its characterized in that, includes independent integrated CPU module, relay control module respectively, the CPU module is through control and response closed-loop control mode and host computer communication, the CPU module through keep apart the chip with relay control module connects, be equipped with the relay group that a plurality of groups parallel in the relay control module, the relay group is connected with test battery respectively and is used for the test each item performance of test battery.
The invention according to the above scheme is characterized in that the CPU module comprises a CPU, and a TTL 485 to 485 unit and a crystal oscillator circuit connected to the CPU, and the CPU communicates with the upper computer through the TTL 485 unit.
Further, the TTL to 485 unit includes an input port and an output port, the input port includes a TXD port and an RXD port, and the output port includes an RS485A port and an RS485B port.
Further, the CPU is also connected with a three-color status indicator lamp.
Further, the input voltage is connected with the CPU through a power supply voltage conversion unit, and the input voltage is connected with the relay set through a power supply bus.
Further, an IO control relay is arranged in the CPU module, and the CPU detects whether the state of the detection signal fed back by the relay control module is correct through the IO control relay.
Furthermore, an RTC real-time clock unit is further arranged in the CPU, and the RTC real-time clock unit is connected with the CPU through the crystal oscillator circuit.
The relay control module is characterized by further comprising a station number dial switch and a baud rate selection dial switch, wherein the station number dial switch and the baud rate selection dial switch are respectively connected with a CPU in the CPU module, the CPU controls the relay control unit to select station numbers through adjustment of the station number dial switch, and controls selection of the baud rate of the relay control unit through adjustment of the baud rate selection dial switch.
The invention according to the above scheme is characterized in that the isolation chip includes an isolation control unit and an isolation feedback unit, the CPU in the CPU control module sends a control signal to the relay group through the isolation control unit, and the relay group detects a performance signal of the test battery and sends the performance signal to the CPU through the isolation feedback unit.
The relay control module is characterized by further comprising a relay conducting state indicator lamp and a baud rate selection state indicator lamp, wherein the relay conducting state indicator lamp and the baud rate selection state indicator lamp are connected with the relay group and a CPU in the CPU module.
The invention according to the scheme has the advantages that:
the invention meets the requirements of the existing new energy battery automation test on versatility and integration by adopting the independent setting and integration technology of the CPU module and the relay control module and by adopting the open and modularized specifications, can ensure that the module state of the automation production is transmitted to the data terminal in real time, realizes quick response, timely processes the abnormity in the production process by self-diagnosis, avoids the loss caused by the abnormity, and is suitable for quickly realizing the requirements of automation schemes on function, reliability, cost, volume, power consumption and the like from the aspects of cost input, production efficiency and quality control;
the relay control module is internally provided with a plurality of groups of relay groups, can be flexibly configured according to the requirements of users, greatly realizes the usability, the fast expansibility and the transportability of the system, and provides a universal, flexible and standard automatic control system for the users.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a diagram of the internal system architecture of the present invention;
FIG. 3 is a block diagram of a test apparatus according to the present invention.
1-a test device; 2-RS485A port; 3-RS485B port.
Detailed Description
The invention is further described with reference to the following figures and embodiments:
as shown in fig. 1, an automatic testing system for new energy batteries comprises a CPU module and a relay control module which are independently integrated, wherein the CPU module is communicated with an upper computer in a control and response closed-loop control mode, the CPU module is connected with the relay control module, the relay control module is connected with a test battery to detect various performances of the test battery, and a detection result is sent to the upper computer through the CPU module to perform data statistics and early warning.
As shown in fig. 2, the CPU module of the present invention includes a CPU, a TTL to 485 unit connected to the CPU, and a crystal oscillator circuit, the CPU communicates with an upper computer through the TTL to 485 unit, the CPU implements intelligent control of the system, the TTL to 485 unit is used to implement communication between the CPU and the upper computer, and meanwhile, the accuracy of signal transmission is ensured, and the crystal oscillator circuit is used to implement control of a system clock.
The CPU in the invention adopts an ARM 32-bit M3 core, an instruction CPU with a main frequency of 72MHz and an operation speed of 1.25MMIPS/MHz, so that the control and operation process of the system is faster and more stable, and the hardware cost of the system application is reduced.
The TTL 485 conversion unit comprises an input port and an output port, the input port comprises a TXD port and an RXD port, and the output port comprises an RS485A port and an RS485B port. Preferably, an EIA/TIA-485 protocol is embedded in the output port of the invention and is communicated through a differential line to realize bidirectional data transmission. The CPU module and the upper computer interface adopt double rows of PO and PIN, the CPU and the upper computer are independently designed, a standard protocol is adopted between the CPU and the upper computer, a control and response closed-loop control mode is adopted, the response time is determined according to the RS485 baud rate, the minimum baud rate supports 9600bps, the maximum baud rate supports 256000bps, and the station number supports 1-63.
An RTC real-time clock unit is also arranged in the CPU and is connected with the CPU through a crystal oscillator circuit.
CPU still is connected with three-colour status indicator, through three-colour indicator indicating system's operating condition. Specifically, the relationship between the state of the three-color indicator light and the state of the system is as follows:
and (3) bright red light: powering up but not working normally;
red flashing: in the test (the relay acts to cause electric shock danger);
the yellow lamp is on: warning (board fault).
The relay control module is internally provided with a plurality of groups of parallel relay groups, the relay groups are respectively connected with the test battery and used for testing various performances of the test battery, and different relay control and application are realized through the parallel relays. Preferably, the invention adopts 8 groups of relays, which can not increase the system cost and can fully meet the requirements of users.
The connection interface of the relay control module and the CPU module adopts an XH2.54-20P terminal and an XH2.54-16P terminal, and the stability of control signal and feedback data transmission is ensured through the XH2.54-20P terminal and the XH2.54-16P terminal. An IO control relay is further arranged in the CPU module, and the CPU detects whether the state of a detection signal fed back by the relay control module is correct or not through the IO control relay, so that the stability of system signal acquisition and system work is ensured.
The CPU module is connected with the relay control module through the isolation chip, and the isolation chip is adopted to isolate signals of the CPU and the relay group, so that the following functions can be realized: (1) protecting operators and low voltage circuits from high voltages; (2) the grounding potential difference between the CPU and the relay group can be balanced; (3) the anti-noise capability of signal transmission between the CPU and the relay set can be improved, and the accuracy of signal acquisition and transmission is ensured.
Preferably, the isolation chip in the invention comprises an isolation control unit and an isolation feedback unit, the CPU in the CPU control module sends a control signal to the relay group through the isolation control unit, and the relay group detects a performance signal of the test battery and sends the performance signal to the CPU through the isolation feedback unit.
The relay control module also comprises a station number dial switch and a baud rate selection dial switch, wherein the station number dial switch and the baud rate selection dial switch are respectively connected with a CPU in the CPU module, the CPU controls the relay control unit to select station numbers through the adjustment of the station number dial switch, and the CPU controls the selection of the baud rate of the relay control unit through the adjustment of the baud rate selection dial switch.
In the invention, the relay control module also comprises a dial state indicator lamp, a relay conducting state indicator lamp and a baud rate selection state indicator lamp, wherein the relay conducting state indicator lamp and the baud rate selection state indicator lamp are both connected with the relay group and a CPU in the CPU module.
Wherein, dial state that dial state pilot lamp state corresponds respectively is:
green: the current power-on dialing station number is not changed, and the current card board uses the current station number;
green flashing: detecting that the dialing station number is changed but a new station number needs to be generated;
wherein, the relay on state pilot lamp state is:
bright: indicating that the relay corresponding to the bit number is attracted;
and (3) extinguishing: indicating that the corresponding relay is released (open).
The input voltage is connected with the CPU through the power supply voltage conversion unit, the input voltage is connected with the relay set through the power supply bus, power supply voltage management is achieved through the power supply voltage conversion unit, and the stability of CPU power supply is guaranteed. Correspondingly, a 24V/GND connecting terminal is arranged in the relay control module, and the relay group is connected with the input voltage through the 24V/GND connecting terminal.
As shown in fig. 3, the CPU module and the relay module are integrated on the circuit board in the testing device 1, and the RS485A port 2 and the RS485B port 3 are integrated at the end of the testing device 1, so that the system integration degree is higher. Preferably, the test equipment is of a T-shaped structure, so that data communication with an upper computer can be realized, and meanwhile, the test equipment is convenient to connect with a test battery and perform performance test.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
The invention is described above with reference to the accompanying drawings, which are illustrative, and it is obvious that the implementation of the invention is not limited in the above manner, and it is within the scope of the invention to adopt various modifications of the inventive method concept and technical solution, or to apply the inventive concept and technical solution to other fields without modification.
Claims (10)
1. The utility model provides an automatic test system of new energy battery, its characterized in that, includes independent integrated CPU module, relay control module respectively, the CPU module is through control and response closed-loop control mode and host computer communication, the CPU module through keep apart the chip with relay control module connects, be equipped with the relay group that a plurality of groups parallel in the relay control module, the relay group is connected with test battery respectively and is used for the test each item performance of test battery.
2. The automatic new energy battery testing system of claim 1, wherein the CPU module comprises a CPU, and a TTL 485 to 485 unit and a crystal oscillator circuit connected to the CPU, and the CPU communicates with the upper computer through the TTL 485 unit.
3. The automatic new energy battery testing system as claimed in claim 2, wherein the TTL 485 conversion unit includes an input port and an output port, the input port includes a TXD port and an RXD port, and the output port includes an RS485A port and an RS485B port.
4. The automatic new energy battery testing system of claim 2, wherein the CPU is further connected to a three-color status indicator light.
5. The automatic new energy battery testing system of claim 2, wherein an input voltage is connected to the CPU through a power supply voltage conversion unit, and the input voltage is connected to the relay set through a power supply bus.
6. The automatic new energy battery testing system according to claim 2, wherein an IO control relay is arranged in the CPU module, and the CPU detects whether a state of a detection signal fed back by the relay control module is correct through the IO control relay.
7. The automatic new energy battery testing system of claim 2, wherein an RTC real-time clock unit is further disposed in the CPU, and the RTC real-time clock unit is connected to the CPU through the crystal oscillator circuit.
8. The automatic new energy battery testing system of claim 1, wherein the relay control module further comprises a station number dial switch and a baud rate selection dial switch, the station number dial switch and the baud rate selection dial switch are respectively connected with a CPU in the CPU module, the CPU controls the relay control unit to select a station number through adjustment of the station number dial switch, and the CPU controls selection of the baud rate of the relay control unit through adjustment of the baud rate selection dial switch.
9. The automatic new energy battery testing system of claim 1, wherein the isolation chip comprises an isolation control unit and an isolation feedback unit, a CPU in the CPU control module sends a control signal to the relay group through the isolation control unit, and the relay group detects that the performance signal of the test battery is sent to the CPU through the isolation feedback unit.
10. The automatic new energy battery testing system of claim 1, wherein the relay control module further comprises a relay on status indicator light and a baud rate selection status indicator light, and the relay on status indicator light and the baud rate selection status indicator light are both connected to the relay bank and a CPU in the CPU module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110681370.6A CN113376535A (en) | 2021-06-18 | 2021-06-18 | Automatic testing system of new energy battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110681370.6A CN113376535A (en) | 2021-06-18 | 2021-06-18 | Automatic testing system of new energy battery |
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| CN113376535A true CN113376535A (en) | 2021-09-10 |
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