Utility model content
The problem that the utility model solves is to provide a kind of battery balanced module automatic checkout system, and the measuring accuracy for data such as voltage and currents is compared Traditional Man test with efficiency aspect and improve several times, is conducive to the outgoing improving product.
For solving the problem, the utility model embodiment provides a kind of battery balanced module automatic checkout system, comprise: PC, automatic test master control borad, at least one direct current programmable power supply, at least one direct current programmable load and module place tool, described module places tool for connecting battery balanced module, described automatic test master control borad respectively with PC, at least one direct current programmable power supply, at least one direct current programmable load is placed tool electricity with module and is connected, utilize direct current programmable power supply and the charging of direct current programmable load simulation cell, electric discharge, high pressure, the different state such as under-voltage, thus whether detect the performance of battery balanced module under different conditions qualified.
Optionally, two direct current programmable power supplies and a direct current programmable load is comprised.
Optionally, described automatic test master control borad comprises MCU, current detection module and voltage detection module, described MCU is connected with voltage detection module with described current detection module respectively, and described MCU is connected with PC, is tested by PC control current detection module and voltage detection module.
Optionally, first direct current programmable power supply and the series connection of the second direct current programmable power supply, and one end ground connection of the second direct current programmable power supply, the two ends of described first direct current programmable power supply are all connected with a current detection module and a current sampling resistor, described current detection module and current sampling resistor are connected in parallel, described current detection module, the detection voltage connection that the other end and the module of current sampling resistor place tool corresponding is connected, MCU completes the state to arranging needed for battery balanced module testing by the state controlling disconnector corresponding to current detection module, read corresponding current information.
Optionally, the BIAS voltage end that one end and the module of described voltage detection module place tool is connected, the other end of described voltage detection module places tool respectively two voltage input/output terminals with module are connected, MCU completes the state to arranging needed for battery balanced module testing by the state of disconnector corresponding to control voltage detection module, reads corresponding information of voltage.
Optionally, also comprise working power, described working power is automatically test the MCU of master control borad, current detection module and voltage detection module to power.
Optionally, described automatic test master control borad is the serial ports end that TTL receives each direct current programmable power supply or direct current programmable load by RS485 bus switching.
Optionally, described automatic test master control borad also comprises data conversion module, one end of described data conversion module connects MCU, the other end connects each direct current programmable power supply, direct current programmable load, the signal obtained from PC is converted to by data conversion module the signal that RS485 identifies by described MCU, with bus form to the electric current and voltage size of each direct current programmable power supply, direct current programmable load or input or output size and control.
Compared with prior art, the technical program has the following advantages:
This Auto-Test System utilizes PC, automatically test master control borad automatically to test, easy and simple to handle, measuring accuracy aspect for data such as voltage and currents is compared Traditional Man test and is improve several times, measure the related data of module more accurately, improve the outgoing of product, meet the needs of client, thus finally at prolongation battery life with improve charge and discharge balancing between monomer and play a role.And this battery balanced module automatic checkout system utilizes direct current programmable power supply, direct current programmable load can equilibrium situation under simulated battery different conditions, complete and greatly shorten a whole set of detection time detected.
Embodiment
Below in conjunction with accompanying drawing, by specific embodiment, clear, complete description is carried out to the technical solution of the utility model.
Please refer to Fig. 1, for the modular structure schematic diagram of a kind of battery balanced module automatic checkout system of the utility model embodiment, comprising: tool 30 placed by PC 10, automatically test master control borad 20, two direct current programmable power supplies (comprising the first direct current programmable power supply 41 and the second direct current programmable power supply 42), a direct current programmable load 43 and module.
Described PC 10 is for being provided with the computing machine of test upper computer software automatically, described PC 10 is connected with the MCU automatically testing master control borad 20, utilize described PC 10 can control the testing process of whole battery balanced module automatic checkout system, and show testing process and testing result.
In other embodiments, the hardware control switch tested on master control borad 20 automatically can also be utilized to complete the control of battery balanced module automatic checkout system.
Described module places tool 30 for placing battery balance module, and described module placement tool 30 can place one or more battery balanced module, the interface that input/output port and the module of described battery balanced module place tool 30 is connected, and utilizes test master control borad automatically automatically to test battery balanced module.
In the present embodiment, described battery balanced module automatic checkout system comprises the first direct current programmable power supply 41, second direct current programmable power supply 42 and direct current programmable load 43, in other embodiments, described battery balanced module automatic checkout system comprises at least one direct current programmable power supply and at least one direct current programmable load, automatic test master control borad is the DB9 serial port end that TTL receives each direct current programmable power supply or direct current programmable load by RS485 bus switching, the different address that communication protocol is arranged in advance according to each is distinguished, formed thus and the independence of each equipment is controlled.
Due in existing battery balanced test, conventional batteries is used to detect, can not the different conditions of simulated battery at short notice, just corresponding test mode can only can be obtained by long use, this just causes the time of balance module test needs cost oversize, is unfavorable for that balance module is tested and long-term development faster.And in the present embodiment, described power supply is direct current programmable power supply, and described load is direct current programmable load, can by the equilibrium situation under programming simulated battery different conditions, the a whole set of detection time detected is shortened greatly, and final test result is complete.
In the present embodiment, described automatic test master control borad 20 is placed tool 30 electricity with PC 10, first direct current programmable power supply 41, second direct current programmable power supply 42, direct current programmable load 43 and module respectively and is connected, direct current programmable power supply and direct current programmable load is optionally controlled by disconnector, simulation cell charging, electric discharge, high pressure, the different state such as under-voltage, thus whether detect the performance of battery balanced module under different conditions qualified.
Please refer to Fig. 2, for the electrical block diagram of the automatic test master control borad of the utility model embodiment, described automatic test master control borad specifically comprises: MCU, two current detection modules, voltage detection module and data conversion modules, described MCU is connected with described current detection module, voltage detection module, data conversion module respectively, and described MCU is connected with PC, controls current detection module and voltage detection module by PC, disconnector that data conversion module is corresponding tests.
In the present embodiment, described first direct current programmable power supply 41 (E2 namely in Fig. 2) and the series connection of the second direct current programmable power supply 42 (E3 namely in Fig. 2), and one end ground connection of the second direct current programmable power supply, the two ends of described first direct current programmable power supply are all connected with a current detection module and a current sampling resistor R2, described current detection module and current sampling resistor R2 are connected in parallel, described current detection module, the other end and the module of current sampling resistor place detection voltage connection VM corresponding to tool 30, VP is connected, MCU is by controlling disconnector K1 corresponding to current detection module, K3, the state of K4 completes the state to arranging needed for battery balanced module testing, read corresponding current information.
Simultaneously, the BIAS voltage end that one end and the module of described voltage detection module place tool 30 is connected, the other end of described voltage detection module places tool respectively two voltage input/output terminals VM, VP with module are connected, MCU completes the state to arranging needed for battery balanced module testing by the state of corresponding disconnector K9, K10, the K11 of control voltage detection module, reads corresponding information of voltage.
One end of described data conversion module connects MCU, the other end connects each direct current programmable power supply, direct current programmable load, the signal obtained from PC is converted to by data conversion module the signal that RS485 identifies by described MCU, with bus form to the electric current and voltage size of each direct current programmable power supply, direct current programmable load or input or output size and control.
In the present embodiment, battery balanced module automatic checkout system also comprises working power E1, and described working power connects a voltage transformation module, powers for automatically testing the MCU of master control borad, current detection module and voltage detection module.
In battery balanced module automatic checkout system of the present utility model, voltage detection module and current detection module carry out data acquisition for the situation of change on corresponding line, automatic test master control borad is by being connected with the PC being provided with automatic checkout system host computer, obtain the order that starts to detect and report detection data, the work such as host computer can process data, show, preservation.Auto-Test System master control borad is by controlling the conducting of isolation gate-controlled switch K1 ~ K12, the state of shutoff and the first direct current programmable power supply, the second direct current programmable power supply, the input and output voltage of direct current programmable load or the size of electric current, each different duty of the electric battery that can run into after coming on analog balanced model calling to electric battery, under the data acquisition current state that master control borad is gathered by voltage detection module and current detection module, whether the working condition of balance module is normal.
The utility model additionally provides a kind of detection method adopting above-mentioned battery balanced module automatic checkout system, first system initialization has been carried out after automatic test master control borad powers on, wherein comprise house dog initialization, clock initialization, SCI1 initialization, SCI2 initialization, SPI initialization, IIC initialization etc.The initialization of each communication module will carry out initialization according to the baud rate of agreement, and voltage detection module needs to carry out initialization separately before use.Open system break after initialization completes, enter program major cycle.Power on after power supply or load power down, when automatically test master control borad still normally uses, test board also needs to re-power and just can control power supply or loaded work piece, once all need to arrange power supply and load is distance control mode so often test, and be in the state of closedown.After setting up power supply and load, the order of slave computer waiting for the start, wherein initiation command has two kinds, and a kind of is order from host computer, and one is hardware button.When there is one of them, all represent that tester needs to carry out the test of module.When receiving initiation command, first slave computer detects the supply voltage BIAS of module, if within the limits prescribed, represents and passes through, carry out the detection of the next item down, otherwise program just turns back to the place that major cycle starts most, and reported data.Respectively the bias voltage of module, short circuit, load regulation, efficiency and quiescent dissipation etc. are tested etc. with this rule.When test module BIAS voltage, master control borad MCU is arranged the direct current programmable power supply E2 in Fig. 2 and direct current programmable power supply E3 respectively, make disconnector K1 again, K3, K4 is in conducting state allows balance module start working, now respectively K1 and K4 is turned off, just can obtain module and be in liter, BIAS voltage under step-down state, whether normally current equalization module groundwork can be obtained by test b IAS voltage, the test of bias voltage is carried out after determining normal work, whether carrying out judge module with this, to start the voltage deviation of balanced operation qualified, whether the short-circuit protection ability that short-circuit test can obtain balance module is normal, the test of load regulation and efficiency can understand the ability of module equilibrium, quiescent dissipation test allows tester know, and whether the quiescent dissipation of balance module conforms with the regulations value.Only have when all test values all reach the scope of setting, module just can be defined as qualified product.
Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; the Method and Technology content of above-mentioned announcement can be utilized to make possible variation and amendment to technical solutions of the utility model; therefore; every content not departing from technical solutions of the utility model; the any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all belong to the protection domain of technical solutions of the utility model.