KR950012352B1 - Battery measuring apparatus in shell detonator - Google Patents

Abstract

a micro computer which is connected to latch circuits, a noise detecting circuit, first and second interfaces, a photocoupler, a start switch and a reset switch; the second interface whose output terminal is connected to a display drive circuit of a sample determinating unit, a reference time generating circuit, a display drive circuit of a life period measuring unit and a display drive circuit of an activating time measuring unit and simultaneously to a determinating unit including a plurality of light emitting diodes; a latch buffer circuit for driving first to fourth transistors to thereby control first to third switches with first to fourth relays; a battery for applying an output voltage to an A/D converter through the first relay switch and a damping circuit, to first and second badness filters through an amplifying circuit and the second relay switch and to a resistor converter through a current field, the current field transmitting data to an oscillograph, the resistor converter varied by the first interface, the damping circuit connected to a contact point of the fourth relay switch; and first and second oscillating circuits connected to the A/D converter and the reference time generating circuit.

Description

Battery measuring device of shell electronic fuse

1 is a circuit diagram of the present invention.

* Explanation of symbols for main parts of the drawings

1: Attenuation Circuit 2: A / D (Anlalog / Digital) Converter

3, 25: oscillation part 4, 5: latch buffer circuit

6: amplification circuit 7, 8: large-pass filter

9: noise detector 10: current converter

11: oscilloscope 12: ammeter

13: resistance converter 14: battery

16, 19: interface 17: solenoid

18: microcomputer 20, 23, 26: display drive circuit

24: reference time generating circuit 21, 22, 27: display device

28: good judgment judgment unit 29: sample judgment

30: life time measuring unit 31: activation time measuring unit

32: battery Q ₁ -Q ₄ : transistor

RL ₁ -RL ₄ : Relay PHC: Photocoupler

RTR: Phototransistor LED ₁ -LED ₅ : Light Emitting Diode

The present invention relates to a device for measuring the characteristics of a battery for supplying power to the shell electronic fuse, in particular the battery measuring device of the shell electronic fuse to be able to select only a good quality battery by measuring a variety of items under the control of a microcomputer It is about.

Batteries used in electronic fuses are damaged by the impact of the shell firing, and after the liquid bottle in which the electrolyte is stored is destroyed, the electrolyte of the battery causes chemical reaction with a specific metal plate by the rotational force. Will be supplied.

If the battery fails to perform its proper function after the shell is fired, it will lose its function as a photon due to improper power supply inside the fuse, such as the oscillator circuit that generates the Doppler signal and the ignition circuit that explodes the primer.

Therefore, the present invention mechanically constitutes a device capable of imparting the same conditions as in the case of shell firing, and when a shock is applied to various items that measure the characteristics of the battery, that is, the liquid bottle is destroyed and the electrolyte is evenly distributed by the rotation force. After measuring the time until the specified voltage is output (hereinafter referred to as "activation time"), and also when the output voltage of the battery through the load for a period of time after the activation time, the output voltage falls below the activation voltage Microcomputer to check the items to measure the time until (hereinafter referred to as "life time"), the maximum voltage measurement that can be output from the battery and the noise level included in the output voltage of the battery, etc. It is necessary to store the program necessary for the control and to control all the devices and to display the device and the measurement conditions that can display each measurement value or time. By connecting and connecting peripheral circuits and devices informing of defective determination, the battery built in the shell electronic fuse can measure various items under the same conditions as when the shell is fired. It is an object of the present invention to provide a battery measuring device.

Hereinafter, described in detail by the accompanying drawings as follows.

As shown in FIG. 1, the microcomputer 18, in which a program is stored, for controlling all devices or reading data, includes a latch buffer circuit 4, 5, a noise detection circuit 9, and an interface 16, 19. The photocoupler PHC driving the solenoid 17 and the start switch SW ₅ and the reset switch SW ₆ are respectively connected, while the output terminal of the interface 19 generates the sample judgment unit 29 and the reference time. The light emitting diodes (LED _1- LED ₅ ) are connected to the circuit 24 and to the display driving circuits 20, 23, and 26 of the life time measuring unit 30 and the activation time measuring unit 31. It connects to the positive undeciding unit 28 and drives the transistors Q ₁ -Q ₄ by the latch buffer circuit ₄ to control the relay switches SW ₁ -SW ₄ as the relays RL ₁ -RL ₄ . on the other hand at the same time as sending the output voltage of the battery 14 to the a / D converter 2 through the relay switch (SW ₁₎ and the attenuation circuit (1) Width circuit 6 and the relay switches the pass band through (SW ₂₎ filter 7 is applied to the (8), and also, but via a current meter 12 is applied to a resistance transducer (13), A / D converter 2 and the The output terminal of the band pass filter (7) (8) is connected to the latch buffer circuit (5) and the noise detection circuit (9) to the current converter (10), respectively, and the data of the current converter (10) is transmitted to the oscillogram (11) and the interface ( 16, the resistance converter 13 is variable, and the B contact of the relay switch SW ₄ is connected to the attenuation circuit 1, while the oscillator 3 is connected to the A / D converter 2 and the reference time generation circuit 24. (25) is a battery measuring device of the shell electronic fuse.

Referring to the effects of the present invention made of the configuration as described above are as follows.

First, when the start switch SW ₅ is connected to the ON state, the photocoupler (PHC) is turned on when the rotating device has a constant rotational force to give the microcomputer 18 the same conditions as when the shell is fired. 17) operates to destroy the liquid bottle in which the electrolyte is stored, and at the same time enables all devices and circuits to be enabled, and the reference time generation circuit 24 receives the frequency of the oscillator 25 to scan the time. And control the transistors Q ₁ -Q ₄ to satisfy the measurement conditions in the latch buffer circuit 4 by the program.

In this state, the electrolyte is evenly distributed by the rotational force, and then chemically reacts with a specific material to output a voltage. First, according to the program, as the activation time is turned on in the microcomputer 18, the relay RL ₁ is driven to connect the relay switch SW ₁ to the attenuation circuit 1.

로 감쇠된후 A/D변환기(2)에 인가되어 아날로그신호인 배터리(14)의 출력전압을 디지털신호로 변환시켜 래치버퍼회로(5)를 통하여 마이크로 컴퓨터(18)에 전송하게 됨에 따라 이의 데이터를 판독한후 세팅된 규정전압이 되면 디스플레이구동회로(26)의 동작을 중지시켜 표시장치(27)에 나타난 시간을 홀딩하게 되면 이때의 시간이 배터리(14)로부터 출력되는 전압이 일정한 레벨에 도달되기까지의 시간 즉 활성화 시간이다.Therefore, the output voltage of the battery 14 passes through the relay switch SW _{1 in the} attenuation circuit 1.

After being attenuated by the A / D converter 2, the output voltage of the battery 14, which is an analog signal, is converted into a digital signal and transmitted to the microcomputer 18 through the latch buffer circuit 5. After reading, when the set voltage is reached, the operation of the display driver circuit 26 is stopped to hold the time shown on the display device 27. At this time, the voltage output from the battery 14 reaches a constant level. Time to activation, ie activation time.

On the other hand, immediately before the activation time measurement is completed, the display driver circuit 23 is enabled. The interface 16 sends a signal to the resistance converter 13 to appropriately change the resistance value so that the output voltage of the battery 14 is changed to a constant current. When the data is transmitted to the attenuation circuit 1 for a predetermined time, the data through the latch buffer circuit 5 continues to be widened so that the counting stop signal is transmitted to the display driver circuit 23 when the voltage exceeds or falls below the specified voltage. The data is sent to hold the data of the display device 22. This time is the life time, that is, the time when the output voltage of the battery 14 is maintained at a constant level.

In addition, the relay switch SW ₂ is band-passed by driving the relay RL ₂ by turning on the transistor Q ₂ in the latch buffer circuit 4 to measure the noise included in the output voltage of the battery 14. It is connected with the filter (7) (8).

Therefore, after the output voltage of the battery 14 is amplified in the amplifier circuit 6 at a constant ratio, it is transmitted to the band pass filter 7 and 8 through the relay switch SW ₂ to pass only a specific band and then a noise detection circuit. The noise component detected in (9) is transmitted to the microcomputer 18 to read it out, but when it is out of the data range set in the program, the light emitting diode LED ₃ of the positive judgment unit 28 is turned on through the interface 19. It will inform you that it is bad.

On the other hand, when the transistors Q ₃ and Q ₄ are turned on in the latch buffer circuit 4, the relays RL ₃ and RL ₄ are driven to connect the relay switches SW ₃ and SW ₄ to the contact A. The output voltage of the battery 14 through the attenuation circuit 1 is converted into a current in the current converter 10 and transferred to the oscilloscope graph 11 to record the voltage output state.

Therefore, when the measurement data is read out to the microcomputer 18 and out of the set range, the light emitting diodes (LED _{1 to} LED ₅ ) of the positive and negative judgment units 28 are turned on at the interface 16 according to the measurement result of each measurement item. It is displayed on the outside for easy measurement.

The sample measuring unit 29 detects whether the sample is defective or if the measuring device itself is abnormal when the sample is seated to measure the performance of the battery 14 in a mechanical device. If the display device 21 of the sample judgment unit 29 is notified from (19), and the reset switch SW ₆ is connected after measurement completion, all the circuits are initialized to switch to the initial state.

Therefore, it is determined that the battery 14 is of good quality only when all measurement items such as activation time, lifetime maximum voltage, and noise component exist within the reference setting range.

As described above, according to the present invention, a time (activation time measurement item) until a specified voltage is output by operating the battery 14 to measure the battery 14 used for the shell electronic fuse and after the specified voltage output. The time until a constant value load falls below the specified voltage when the current flows for the specified time (life time measurement item) and the maximum output voltage and noise detection measurement item are precisely measured by the program of the microcomputer 18. By doing so, only the good quality battery 14 can be sorted out quickly.

Claims (1)

The microcomputer 18, in which the program is stored, for controlling all devices or reading data, drives the latch buffer circuits 4, 5, the noise detection circuit 9, the interface 16, 919, and the solenoid 17. photo coupler (PHC), and host the other switch (SW ₅₎ and the reset switch (SW ₆₎ to which the other hand interface 19 an output terminal of the sample determining section 29 and the reference time generating circuit 24 of the connection, respectively, and the life of Positive and negative judgment unit 28 connected to the display driving circuits 20, 23, 26 of the time measuring unit 30 and the activation time measuring unit 31 and at the same time the light emitting diodes (LED _1- LED ₅ ) are mediated. The transistors Q ₁ -Q ₄ are driven by the latch buffer circuit ₄ to control the relay switches SW ₁ -SW ₄ as the relays RL ₁ -RL ₄ , the output voltage of the relay switch (SW ₁₎ and the attenuation circuit (1) an a / D converter 2 to the transmission and at the same time the amplifying circuit 6 and the relay via Switch passes gachyeo band to (SW ₂₎ filter 7 is applied to the (8), and also, but via a current meter 12 is applied to a resistance transducer (13), A / D converter 2 and the band pass filter 7 ( 8) The output stage is connected to the latch buffer circuit 5 and the noise detection circuit 9 current converter 10, respectively, and transmits the data of the current converter 10 to the oscilloscope 11 and the resistance converter 13 as an interface 16. The B contact of the relay switch SW ₄ is connected to the attenuation circuit 1, and the oscillator 3 and 25 are connected to the A / D converter 2 and the reference generator 24. Battery measuring device of the shell electronic fuse, characterized in that.

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