KR20120091642A - Batterys state monitoring and power controls equipment - Google Patents

Abstract

PURPOSE: A monitoring system of a charging battery is provided to offer information for battery exchange time to an operator and to prevent safety accidents in beforehand through battery temperature monitoring and excessive discharge control. CONSTITUTION: A checking apparatus(2) of a charging battery comprises a SOC(State Of Charge) module(21), a relay module(22) and a base module(23). The SOC module measures remaining amount and temperature of a battery. The relay module controls a power supply connected to a propelling unit. The base module measures and controls state information of the battery and a current for a sensor driven by the propelling unit and the battery. A monitoring PC(Personal Computer)(3) is connected to the base module of the checking apparatus of the charging battery and monitors charge state of the battery.

Description

Rechargeable battery monitoring system {Batterys state monitoring and power controls equipment}

The present invention relates to a monitoring system of a rechargeable battery. More specifically, the present invention monitors a voltage (V), a current (A), and a power (P) of a battery which is actually used for a battery-powered power system. By checking the battery usage and predicting the remaining capacity, it provides the operator with information on when to replace the battery, and prevents safety accidents by monitoring the battery temperature and controlling over-discharge, and according to the operating equipment that uses the battery. The present invention relates to a monitoring system of a rechargeable battery capable of prolonging an operating time through efficient power control by grasping actual power usage.

In the case of operating equipment of aquatic vehicles operating underwater, the energy source is a key limitation that determines the operating distance, speed, operating time, working capacity, equipment size, weight and operating cost of the entire operating equipment. It is one of the elements, and the battery is used as the energy source of the operating equipment, which is generally an underwater vehicle.

In the prior art, the battery voltage is checked to indicate an abnormal state when the battery voltage is lower than a predetermined voltage, or the battery state is monitored by measuring voltage and temperature. There was a problem that it was insufficient and could not accurately use the remaining amount by displaying the remaining amount of battery accurately, and there was a problem that a lot of effort was required to find the lost operation equipment because the power was exhausted during use. In spite of the remaining charges, due to the fear of battery discharge, the test step is reduced, the test is stopped in the middle, and the operation equipment is recovered. Insufficient experiments are carried out. So that the battery The extra time was wasted on this issue.

An object of the present invention is to solve such a problem, by monitoring the detailed information about the battery in real time, through the efficient power control to extend the operating time of the equipment due to the efficient management, and to predict the remaining battery capacity of the battery low voltage or In case of receiving status information of remaining capacity, it is possible to prevent accidents such as loss of operating equipment used in advance by executing the command of returning or injury of operating equipment under water and predicting the appropriate replacement time through battery management through history card. This will provide a monitoring system for rechargeable batteries that can be expected to reduce costs.

Another object of the present invention is to monitor the status of the battery in real time to provide the user with information on whether there is an abnormality and the replacement cycle, and the efficient management of the battery, the propulsion and a variety of sensors mounted on the underwater exercise chain operating equipment battery When the power is supplied through the controller, the power consumption of the propeller and sensor is checked, and the amount of power supplied to the propeller or sensor is controlled according to the mission or battery remaining by the underwater equipment. It is to provide a monitoring system of a rechargeable battery that can be extended to.

These objects of the present invention include a battery; The SOC (State Of Charge) module for measuring the remaining amount and temperature of the battery, the relay (Relay) module to control the power connected to the propeller, the state information such as the remaining battery and temperature and sensors installed in the propeller and the propeller An apparatus for inspecting a rechargeable battery having a base module for measuring and controlling current for the battery; It is achieved by the monitoring system of the rechargeable battery according to the present invention, including a monitoring PC connected to the base module of the inspection device of the rechargeable battery to monitor the state of the rechargeable battery.

The monitoring system of the rechargeable battery according to the present invention monitors the battery voltage in real time and displays it quantitatively, so that the battery state can be accurately known and the user can be stably operated by providing the battery use time and replacement time. In particular, if there is a thruster or sensor added to the operating equipment of the underwater vehicle, the power consumption is inferred, and simulation information on the maximum equipment operating time is provided to prevent the underwater vehicle from being lost and the history card is saved. Through battery management, it is possible to expect cost savings by predicting the appropriate replacement time.

1 is an overall system diagram for a monitoring system of a rechargeable battery
2 is a block diagram of an SOC module for a monitoring system of a rechargeable battery.
3 is a block diagram of a relay module for a monitoring system of a rechargeable battery;
4 is a block diagram of a BASE module for a monitoring system of a rechargeable battery;
5 is a flowchart of the SOC module of the monitoring system of the rechargeable battery.
Fig. 6 is a flowchart of the BASE module of the monitoring system for the rechargeable battery.
7 is an initial screen of a management program of a monitoring PC of a monitoring system of a rechargeable battery;

In order to achieve the above object, the monitoring system of the rechargeable battery of the present invention monitors the battery status in real time for efficient management of the battery and controls the power supply to the propeller or the sensor to improve the stability and maximum operating time of the underwater exercise chain operating equipment. Provide a way to ensure it.

Hereinafter, a monitoring system for a rechargeable battery according to a first embodiment of the present invention will be described with reference to the drawings. However, the illustrated drawings and the following descriptions are merely exemplary embodiments of the present invention, and various modifications and changes may be made without departing from the gist of the present invention.

1 is a view showing a system configuration for the battery monitoring and power control used in the monitoring system of the rechargeable battery according to the first embodiment of the present invention, the monitoring system (A) of the rechargeable battery is shown in FIG. As shown, the battery 1; SOC module (State Of Charge Module) 21 for measuring the remaining amount and temperature of the battery (1), relay module (22) for controlling the power connected to the propeller (4), and the battery (1) Rechargeable battery check device (2) having a base module (23) for measuring and controlling the state information and current of the propeller (4) and the sensor (41) operated by the battery (1); And a monitoring PC 3 connected to the base module 23 of the inspecting device 2 of the rechargeable battery to monitor the state of charge of the battery 1.

The battery 1 uses a lead-acid battery, in which a battery unique ID, a number of charge / discharge cycles, a battery level, a voltage, and a temperature are measured and commonly used, but is not limited thereto, and other lithium ion batteries may be used. It is used in the sense of a conventional power source that can be charged, and a description thereof will be omitted.

The apparatus for inspecting the rechargeable battery 2 is an essential element of the present invention, and includes a SOC module 21 for measuring the remaining amount and temperature of the battery 1 and a relay for intermittent power connected to the propeller 4 ( RELAY module 22, and the base module 23 for measuring and controlling the current information on the state information of the battery 1 and the propeller 4 and the battery-operated sensor 41.

The SOC module 21 has a function of measuring the remaining amount and temperature of the battery 1 and transmitting it to the main control circuit unit 231 of the base module 23.

As illustrated in FIG. 2, the SOC module 21 includes a battery remaining amount measuring unit 211 for measuring the remaining amount of the battery 1, a temperature measuring unit 212 for measuring the temperature of the battery 1, and And a control unit 213 for controlling them, and the battery remaining amount measuring unit 211 calculates a battery voltage according to Ohm's law by measuring a current of the battery using a current sensor, The battery level can be calculated in% by comparing the value with the voltage value over time. The charge / discharge count (Count) is stored in the internal memory (EEPROM) of the SOC module 21 to provide information for managing the battery charge / discharge history of the SOC module 21 currently in use.

In addition, the SOC module 21 can be distinguished by assigning a unique ID identifier to each battery when a plurality of batteries 1 are used.

On the other hand, the temperature measuring unit 212 detects the temperature value of the battery using a temperature sensor to measure in real time by measuring the temperature value that changes when an abnormal condition such as overcurrent.

The controller 213 communicates the measured value with the main control circuit 231 of the base module 23.

The SOC module 21 is connected to the main control circuit unit 231 of the base module 23 in a SPI (Serial Peripheral Interface) communication method to perform communication.

The relay module 22, as shown in Figure 3, the current limiting circuit portion 221 to flow within the allowable range of the current required by the propeller 4, and when the propeller 4 exceeds the allowable range It includes a relay circuit unit 222 to cut off the power supply.

When the current limiting circuit unit 221 of the relay module 22 transmits the current limiting signal from the main control circuit unit 231 of the BASE module 23, the current limiting circuit unit 221 of the relay module 22 receives the signal. It is possible to control and limit the amount of current supplied to the propeller 4 by controlling the current of the propeller 4 by receiving and controlling the current of the propeller 4 by software.

In the relay circuit unit 222, when the allowable capacity is exceeded, the power connected to the propeller 4 is automatically shut off by hardware, and software power is cut off by a relay control signal transmitted from the main control circuit unit 231 of the BASE module 23. It is also possible. The current measurement signal of the propeller 4 is received by the main control circuit unit 231 of the BASE module 23 to store the current propeller current usage.

As shown in FIG. 4, the base module 23 receives a signal sensed by the sensor 41 of the propeller 4, converts the signal into a digital signal, and compares the control with the data stored therein. ), A current measuring circuit unit 232 for measuring a current signal input from the propeller 4 and the sensor 41, and an AD converter unit for converting an analog current signal into a digital signal in the current measuring circuit unit 232 ( 233, and an Ethernet 234 for communicating with the main control circuit 231 and the monitoring PC 3.

The main function of the BASE module 23 is connected to the monitoring PC 3 in real time, and the status information of the battery 1 required by the monitoring PC 3 and the current measurement and control of the propeller 4 and the sensor 41. Do

In general, the propeller type propeller 4 is used for maneuvering an underwater vehicle (not shown), which is a kind of operating equipment, and the underwater vehicle can be controlled by connecting up to two propellers 4. In addition, the sensor 41 used for the navigation and mission performance of the underwater vehicle can be divided into navigation sensors that provide information related to the movement of the underwater vehicle and sensors inside the system. Environmental sensors. The device can connect up to 10 sensors to monitor and control power consumption for each sensor.

The signal transmitted from the SOC module 21 can be processed and monitored through the monitoring PC 3 and has a current control and a relay control function for the relay module 22 and internally converts the current measurement circuit unit 232 and AD. The converter (233) is mounted to measure the current value of the propeller (4) connected to the battery (1) to monitor through the monitoring PC (3).

Through the SPI port 231a, the SOC module 21 receives the remaining amount and temperature of the battery 1, processes it into a predetermined packet, and transmits it to the monitoring PC 3 through Ethernet.

The current value measured by the current measuring circuit unit 232 is converted into a voltage value which is an analog value and transferred to the AD converter unit 233, and this data is transmitted to the 32-bit CPU of the main control circuit unit 231 by the I 2 C interface method. This data is also transmitted to the monitoring PC 3 through Ethernet communication for monitoring as a certain type of packet.

The current limiting circuit 221 of the relay module 22 is provided with a current limiting signal for controlling the IGBT, which is a semiconductor, in accordance with the frequency of the PWM signal from the 32-bit CPU of the main control circuit 231 of the base module 23. The amount of current supplied to the propeller 4 is controlled, and the relay control signal for turning on / off the relay of the relay module 22 is controlled by a GPIO signal, and cuts or supplies power supplied to the propeller.

FIG. 5 is a flowchart of the SOC module 11 of the monitoring system A of the rechargeable battery. When power is supplied to the SOC module 21 (step S1), the control unit 213 of the SOC module 21 is shown. Check the number of charge / discharge cycles stored in the internal memory (step S2), compare the maximum number of charge / discharge cycles (Step S3), and check the battery charge status LED if it is not less than the maximum number (Count_Max). Display ON and repeat in step S3 (step S4), if it is less than the maximum number (Count_Max), check the status of monitoring PC (3) connection (step S5). ) And wait for the connection to repeat in step S5. If connected in step S5, the communication connection status LED is ON (step S7), the monitoring PC (3) is waiting for a call (step S8), the call ID is checked on the monitoring PC (3) (step S9), and the battery is not called ID. The number of charge counts, voltage V, current A, and temperature T are stored in the internal memory of the SOC module 21 (step S11), and then the process returns to step S8. 3) (S10 step).

FIG. 6 is a flowchart showing the BASE module 23 of the monitoring system A of the rechargeable battery. When power is supplied to the BASE module (step 23) (step S20), the monitoring PC 3 waits for connection. Mode (step S21), it is then checked whether or not the monitoring PC 3 is connected (step S22). If not connected, go to step S21 and wait, and if connected, if the connection is valid, transmit status information of the SOC, propeller, and sensor to the monitoring PC 3 (step S23). Check whether there is a setting change code among the packet data transmitted from the monitoring PC 3 (step S24). If there is a setting change code, change the communication cycle between the BASE module 23 and the monitoring PC 3 to transmit the current Default (500ms) to the communication cycle required by the monitoring PC 3 (S25), and communicate with the monitoring PC (3). Notify the frequency change items. If there is no change in step S24, the process waits repeatedly in step S24.

Fig. 7 is a view showing the initial screen on the monitor 31 when the monitoring program is executed in the monitoring PC 3 of the present system. The upper part is a battery status window 31a. The battery level is displayed in color. The lower part is a sensor status display window 31b which displays the status of the sensor 41 used in the underwater vehicle, and displays the voltage, current, and temperature values in real time for the selected sensor among the sensor items listed on the left. Values are provided in the form of a graph to show cumulative data. The bottom part is composed of a log display window 31c, the upper right side has a start button and a window 31d for displaying the current time and progress time, and next to it is a window 31e indicating whether a communication connection is established. The graph is a window 31f which displays cumulative information on the battery state. The menu 31g is set for server connection, device setting, period setting, and packet display.

Each function of the basic shortcut key of the monitoring program of the monitoring PC 3 is the initial screen where the monitoring monitoring program is executed on the monitoring PC 3, and the shortcut key 'Ctrl + C' configures the network settings to be connected to the monitoring PC 3. The shortcut key 'Ctrl + D' sets the device to monitor the charging status of the battery or the driving state of the propeller.The shortcut key 'Ctrl + A' sets the period of data to be received from the sensor installed in the propellant. Determines whether to display the packet in the log window.

As described above, the monitoring system of the rechargeable battery according to the present invention monitors the battery voltage in real time and quantitatively displays, so that the battery state can be accurately known and the user can be stably provided to the operation equipment by providing the battery use time and replacement time. In particular, if there is a propeller or sensor added to the operating equipment, which is an underwater vehicle, the power consumption is inferred, and simulation information on the maximum equipment operating time is provided to prevent the underwater vehicle from being lost. By managing the battery through the history card, the cost savings can be expected by predicting the appropriate replacement time.

1. Battery 2. Rechargeable Battery Checking Device
3. Monitoring PC 4. Propeller
21.SOC Module 22.Relay Module
23. Base Module 41. Sensor
211.Residual measurement unit 212.Temperature measurement unit
213. Control unit 221. Current limiting circuit unit
222. Relay circuit section 231. Main circuit section
232. Current measurement circuit section 233. AD conversion section
234. Ethernet

Claims (2)

In the monitoring system (A) of a rechargeable battery,
The monitoring system (A) of the rechargeable battery includes a battery (1);
SOC module (State Of Charge Module) 21 for measuring the remaining amount and temperature of the battery (1), relay module (22) for controlling the power connected to the propeller (4), and the battery (1) Rechargeable battery check device (2) having a base module (23) for measuring and controlling the current information of the propulsion device (4) and the battery (41) operated by the battery;
And a monitoring PC (3) connected to the base module (23) of the checking device (2) of the rechargeable battery to monitor the charging state of the battery (1).
The method of claim 1,
The SOC module 21 of the inspecting device 2 of the rechargeable battery includes a battery remaining amount measuring unit 211 for measuring the remaining amount of the battery 1 and a temperature measuring unit 212 for measuring the temperature of the battery 1. ), And a control unit 213 for controlling them,
The relay module 22 includes a current limiting circuit unit 221 for flowing within the allowable range of the current required by the propeller 4 and a relay circuit unit for interrupting power supply when the propeller 4 exceeds the allowable range ( 222),
The base module 23 receives the signals sensed by the propeller 4 and the sensor 41, converts them into digital signals, and compares and controls them with the data stored therein; A current measuring circuit unit 231 for measuring a current signal input from the sensor 41, an AD converter unit 233 for converting a current signal analog input from the current measuring circuit unit 232 into a digital signal, and the main control word Monitoring system for a rechargeable battery comprising a circuit portion 231 and the Ethernet 234 to communicate with the monitoring PC (3)

Images