CN110174030B - Detection device for detonation signal of magneto-electric detonator for perforation - Google Patents
Detection device for detonation signal of magneto-electric detonator for perforation Download PDFInfo
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- CN110174030B CN110174030B CN201910560535.7A CN201910560535A CN110174030B CN 110174030 B CN110174030 B CN 110174030B CN 201910560535 A CN201910560535 A CN 201910560535A CN 110174030 B CN110174030 B CN 110174030B
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- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000005474 detonation Methods 0.000 title claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 19
- 230000000977 initiatory effect Effects 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 7
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- 238000003825 pressing Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
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- 230000008859 change Effects 0.000 description 4
- 239000003999 initiator Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
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- 238000013024 troubleshooting Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 239000003208 petroleum Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C21/00—Checking fuzes; Testing fuzes
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Abstract
The invention provides a detection device for detonation signals of a magneto-electric detonator for perforation, which comprises a controller, and a trigger, a frequency divider, a display screen and a key circuit which are respectively connected with the controller, wherein the trigger is connected with the frequency divider. Through the design, the invention can measure the frequency of the electric signal, particularly the detonating signal, and set the specific frequency, so as to detect the frequency signal, when the frequency is detected, the indicator lamp is lightened to intuitively display the signal, and therefore, the electric signal of the detonating detonator can be normally provided to the detonator leg wire to finish normal construction under the normal working state of the detonator and the connected perforator, and engineering accidents are avoided. The invention has simple structure, reasonable design, low cost and strong popularization and application value.
Description
Technical Field
The invention belongs to the technical field of detection of a magneto-electric detonator detonating signal, and particularly relates to a detection device of a magneto-electric detonator detonating signal for perforation.
Background
In the petroleum industry, perforating operation is basically required to be carried out on a specific well section, namely, a perforating gun is internally provided with perforating charges and is connected with a magnetic positioning device, a detonation signal is generated by a detonator on the surface after the magnetic positioning device finishes the depth calibration in the well, the detonation signal reaches a detonator in the perforating gun through a cable and the magnetic positioning device and detonates a detonating cord so as to detonate the perforating charges, and metal jet contained in the perforating charges penetrates through a casing and penetrates through part of stratum so as to enable oil gas to flow into the well for facilitating the later exploitation process. After the magnetic positioner completes the depth calibration, an initiator is used for initiating the detonator. If no initiation signal can be loaded on the detonator once the initiator fails or the circuit in the magnetic positioner fails, or the initiation signal frequency is incorrect, the initiation will fail, the constructor will take on a larger accident responsibility, and possibly cause the first party to blame or fine or even cancel the job task. Because whether current has passed through the detonator cannot be judged, the detonator is possibly in an unstable state, and because the detonation is unsuccessful, the magnetic positioner and the perforating gun must be lifted out of the wellhead to the ground to remove faults under the condition of bearing risks, the construction period is increased, and the later process is delayed. Therefore, it is critical to detect whether the initiation signal can be properly supplied to the connection of the lower end of the magnetic location with the detonator in the perforating gun prior to connecting the perforating gun with the magnetic location.
The hand-held oscilloscope is a hand-held electronic measuring instrument, is used for displaying the track change condition of the measured instantaneous value, and has the characteristics of convenience in carrying, simplicity in operation and the like. The electric signal conversion device can convert an electric signal invisible to naked eyes into a visible image, and is convenient for people to study the change process of various electric phenomena. It uses a narrow electron beam composed of high-speed electrons to strike a screen coated with fluorescent substance, so that a fine light spot can be produced. Under the action of the measured signal, the electron beam is like a pen point of a pen, and the change curve of the instantaneous value of the measured signal can be drawn on the screen. The oscillograph can be used for observing waveform curves of various different signal amplitudes with time, and can be used for testing various different electric quantities, such as voltage, current, frequency, phase difference, amplitude adjustment and the like, and has the following defects of high cost; the oscilloscope is not visual, has no visual frequency, can only obtain images, needs to manually calculate, and is not beneficial to field operation; the operation is difficult, and because two meter pens are required to be connected to the magnetic positioning interface, two hands are required to operate simultaneously, and the oscilloscope cannot be operated at the moment; the technical difficulty is high, because the initiation signal is a signal with a duration of only a few milliseconds, capturing the initiation signal by adopting the oscilloscope is time-consuming and labor-consuming, effective signals can not be found due to unskilled operation, common ground workers can not finish the operation, and engineers with certain technical strength are required to operate the operation in person.
Disclosure of Invention
Aiming at the defects in the prior art, the detection device for the detonation signal of the magneto-electric detonator for perforation provided by the invention can intuitively detect whether the detonation signal can be accurately transmitted to the detonator so as to avoid engineering accidents.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a detection device of magneto-electric detonator initiation signal for perforation, including the controller, and respectively with trigger, frequency divider, display screen and the key circuit that the controller is connected, wherein, the trigger with the frequency divider is connected.
The beneficial effects of the invention are as follows: the invention utilizes triode amplifying circuit to amplify the collected voltage, utilizes trigger to shape the collected sine wave triangular wave square wave and output square wave signals with equal frequency to be transmitted into the controller, when the frequency of the input signal is overlarge, the signals are transmitted into the frequency divider to be subjected to frequency division treatment and then transmitted to the controller, the controller processes the input square wave signals, records the number of all rising edges in one period and calculates to obtain corresponding frequencies, when the frequencies are displayed by a display screen, the key circuit functions are reset keys, detection keys, digit keys, key adding and key subtracting, and the data to be measured are stored in the controller 1.
Further, the controller comprises a singlechip chip U1 with the model of STC12C5A60S2, a power interface J1 and a program downloading interface J2, wherein,
the 1 st pin of the chip U1 is connected with the cathode of the light emitting diode D2, the anode of the light emitting diode D2 is connected with one end of a resistor R10, the other end of the resistor R10 is connected with the 38 st pin of the chip U1, the 4 th pin of the chip U1 is respectively connected with the cathode of a polar capacitor C5, one switch of a switch S5 and a grounding resistor R9, the other end of the switch S5 is respectively connected with the anode of the polar capacitor C5 and the 38 st pin of the chip U1, the 5 th pin of the chip U1 is connected with the 3 rd pin of the interface J2, the 7 th pin of the chip U1 is connected with the 2 nd pin of the interface J2, the 1 st pin of the interface J2 is grounded, the 4 th pin of the interface J2 is respectively connected with the 1 st pin of the interface J1 and one end of a single-blade switch S6, the other end of the single-blade switch S6 is connected with the 38 th pin of the chip U1, the 8 th pin, the 9 th pin, the 10 th pin and the 11 th pin of the chip U1 are respectively connected with the key circuit, the 14 th pin of the chip U1 is respectively connected with one end of the crystal oscillator Y1 and the grounding capacitor C6, the 15 th pin of the chip U1 is respectively connected with the other end of the crystal oscillator Y1 and the grounding capacitor C7, the 16 th pin of the chip U1 is grounded, the 18 th pin, the 19 th pin, the 20 th pin, the 21 st pin and the 22 nd pin of the chip U1 are respectively connected with the display screen, the 43 rd pin of the chip U1 is connected with the trigger, the 44 th pin of the chip U1 is connected with the frequency divider, the 38 th pin of the chip U1 is also respectively connected with one end of the resistor R8, the trigger, the frequency divider and the display screen, the other end of the resistor R8 is connected with the anode of the light emitting diode D1, the negative electrode of the light emitting diode D1 is grounded.
The beneficial effects of the above-mentioned further scheme are: the controller can detect and analyze the processed signals to obtain corresponding frequencies, the invention adopts the STC12C5A60S2 as a singlechip of the controller, has the characteristics of high speed, low power consumption and super-strong anti-interference, and is internally integrated with a MAX810 special reset circuit, 2-path PWM and 8-path high-speed 10-bit A/D conversion, thereby providing good conditions for the analysis and detection of the controller aiming at motor control and strong interference occasions.
Still further, the trigger comprises a schmitt trigger chip U2 of model 74LS14, a triode Q1 of model 2SC3355, a signal input interface J3 and a potentiometer interface J4, wherein,
the 1 st pin of chip U2 is connected with triode Q1's collecting electrode and resistance R1's one end respectively, resistance R1's the other end is connected with resistance R2's one end and the 38 th pin of chip U1 respectively, resistance R2's the other end is connected with polarity electric capacity C1's positive pole, triode Q1's base, resistance R3's one end and electric capacity C2's one end respectively, polarity electric capacity C1's negative pole is connected with electric capacity C2's the other end and interface J4's the 2 nd pin, interface J4's the 1 st pin is connected with interface J3's the 2 nd pin, interface J3's the 1 st pin is connected with resistance R5's one end, resistance R5's the other end is connected with resistance R3's the other end, resistance R4's one end, electric capacity C3's one end and polarity electric capacity C4's the positive pole is connected with triode Q1's projecting pole respectively, electric capacity C3's the other end and polarity electric capacity C4's positive pole, chip U2 nd pin is connected with chip U2's the 3 nd pin, interface J4's the 1 nd pin is connected with chip U2, U2's pin is connected with U2 the U2 and the chip 7 the U2 and the U2 pin is connected with chip 7, U2's pin is connected with chip 43, the U2 is connected with the chip is connected with the pin and is connected with U2.
The beneficial effects of the above-mentioned further scheme are: because the controller can only read digital signals, and the controller can not directly read when the input signals are smaller, the invention uses the primary triode amplifying circuit to amplify the input signals, and because the signals output by the triode amplifying circuit are not standard square wave signals, the rising edges are not steep enough, the waveforms are similar to sine waves and the like, and in order to enable the controller to better acquire the signals, the invention uses the Schmitt trigger 74ls14 to shape the signals output by the triode amplifying circuit, and can convert the slowly-changed input signals into clear and jitter-free output signals.
Still further, the frequency divider adopts the frequency division chip U3 of model 74LS390, the 1 st pin of chip U3 with the 10 th pin of chip U3 is connected, the 2 nd pin of chip U3 is grounded, the 3 rd pin of chip U3 with the 15 th pin of chip U3, the 4 th pin of chip U3 with the 6 th pin of chip U2, the 6 th pin of chip U3 with the 12 th pin of chip U3 is connected, the 8 th pin of chip U3 is grounded, the 13 th pin of chip U3 with the 44 th pin of chip U1 is connected, the 14 th pin of chip U3 is grounded, the 16 th pin of chip U3 with the 38 th pin of chip U1 is connected.
The beneficial effects of the above-mentioned further scheme are: because the running speed of the controller is limited, the controller needs 1 machine cycle, namely 12 clock cycles, and converts the basic instruction into time of 1us, when the frequency is too high, the controller cannot accurately convert the frequency, so the invention adds a 74LS390 frequency dividing chip which is provided with a 100 frequency dividing counter, when the frequency is higher than 200KHZ, the controller calculates the signal after frequency division, and when the frequency is lower than 200KHZ, the controller calculates the signal before frequency division, so the measurement frequency of the controller can be enlarged by matching the height, and finally the frequency truly corresponding to the frequency is converted and displayed on a display screen.
Still further, the display screen is an OLED display chip U4, the 1 st pin of the chip U4 is grounded, the 2 nd pin of the chip U4 is connected with the 38 rd pin of the chip U1, the 3 rd pin of the chip U4 is connected with the 18 th pin of the chip U1, the 4 th pin of the chip U4 is connected with the 19 th pin of the chip U1, the 5 th pin of the chip U4 is connected with the 20 th pin of the chip U1, the 6 th pin of the chip U4 is connected with the 21 st pin of the chip U1, and the 7 th pin of the chip U4 is connected with the 22 nd pin of the chip U1.
The beneficial effects of the above-mentioned further scheme are: the OLED display screen is an organic light-emitting diode, has the advantages of self-luminescence, no need of a backlight source, high contrast, thin thickness, wide visual angle, high reaction speed, wide use temperature range, simple structure and manufacturing process and the like, and can be used for flexible panels.
Still further, the key circuit includes a switch S1, a switch S2, a switch S3, and a switch S4, wherein,
one end of the switch S1 is connected with one end of the switch S2, one end of the switch S3 and one end of the switch S4 respectively, and is grounded, the other end of the switch S1 is connected with the 8 th pin of the chip U1, the other end of the switch S2 is connected with the 9 th pin of the chip U1, the other end of the switch S3 is connected with the 10 th pin of the chip U1, and the other end of the switch S4 is connected with the 11 th pin of the chip U1.
The beneficial effects of the above-mentioned further scheme are: the key circuit comprises 5 keys, including a reset key, a detection key, a digit key, an add key and a subtract key, wherein the reset key is used for initializing a program and reading a stored comparison value, the detection key is used for detecting the frequency input by an input end, the digit key is used for switching the digit of the comparison value to be adjusted currently, the add key is used for adding 1 to the digit to be adjusted of the comparison value currently, and the subtract key is used for subtracting 1 to the digit to be adjusted of the comparison value currently, thereby providing convenience for practical operation of the invention.
Drawings
Fig. 1 is a schematic diagram of the structural control of the present invention.
Fig. 2 is a circuit diagram of a controller according to the present invention.
Fig. 3 is a circuit diagram of a flip-flop and a frequency divider according to the present invention.
Fig. 4 is a diagram of a display screen according to the present invention.
Fig. 5 is a key circuit diagram of the present invention.
The device comprises a 1-controller, a 2-trigger, a 3-frequency divider, a 4-display screen and a 5-key circuit.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
Examples
The frequency detector is mainly used for detecting a detonation signal given by the magneto-electric detonator initiator, the signal is a signal with shorter pulse (about 0.1 second) and higher frequency (tens or even hundreds of KHz), if the signal cannot be tested before construction, the construction cannot be ensured to be carried out normally and smoothly, and even engineering accidents are generated, so that the detonation signal needs to be measured. The detection device for the detonation signal of the magneto-electric detonator for perforation provided by the invention can visually detect whether the detonation signal can be accurately transmitted to the detonator so as to avoid engineering accidents.
As shown in fig. 1, the invention discloses a device for detecting detonation signals of a magneto-electric detonator for perforation, which comprises a controller 1, and a trigger 2, a frequency divider 3, a display screen 4 and a key circuit 5 which are respectively connected with the controller 1, wherein the trigger 2 is connected with the frequency divider 3.
As shown in fig. 2, the controller 1 includes a single chip microcomputer U1 with a model number STC12C5a60S2, a power interface J1, and a program download interface J2, wherein,
the 1 st pin of the chip U1 is connected with the cathode of the light emitting diode D2, the anode of the light emitting diode D2 is connected with one end of a resistor R10, the other end of the resistor R10 is connected with the 38 st pin of the chip U1, the 4 th pin of the chip U1 is respectively connected with the cathode of a polar capacitor C5, one switch of a switch S5 and a grounding resistor R9, the other end of the switch S5 is respectively connected with the anode of the polar capacitor C5 and the 38 st pin of the chip U1, the 5 th pin of the chip U1 is connected with the 3 rd pin of the interface J2, the 7 th pin of the chip U1 is connected with the 2 nd pin of the interface J2, the 1 st pin of the interface J2 is grounded, the 4 th pin of the interface J2 is respectively connected with the 1 st pin of the interface J1 and one end of a single-blade switch S6, the other end of the single-blade switch S6 is connected with the 38 th pin of the chip U1, the 8 th pin, the 9 th pin, the 10 th pin and the 11 th pin of the chip U1 are respectively connected with the key circuit 5, the 14 th pin of the chip U1 is respectively connected with one end of the crystal oscillator Y1 and the grounding capacitor C6, the 15 th pin of the chip U1 is respectively connected with the other end of the crystal oscillator Y1 and the grounding capacitor C7, the 16 th pin of the chip U1 is grounded, the 18 th pin, the 19 th pin, the 20 th pin, the 21 st pin and the 22 nd pin of the chip U1 are respectively connected with the display screen 4, the 43 rd pin of the chip U1 is connected with the trigger 2, the 44 th pin of the chip U1 is connected with the frequency divider 3, the 38 th pin of the chip U1 is also respectively connected with one end of the resistor R8, the trigger 2, the frequency divider 3 and the display screen 4, the other end of the resistor R8 is connected with the anode of the light emitting diode D1, the negative electrode of the light emitting diode D1 is grounded.
As shown in fig. 3, the trigger 2 includes a schmitt trigger chip U2 with a model of 74LS14, a triode Q1 with a model of 2SC3355, a signal input interface J3, and a potentiometer interface J4, wherein a 1 st pin of the chip U2 is connected with a collector of the triode Q1 and one end of a resistor R1, the other end of the resistor R1 is connected with one end of the resistor R2 and a 38 th pin of the chip U1, the other end of the resistor R2 is connected with an anode of a polar capacitor C1, a base of a triode Q1, one end of a resistor R3, and one end of the capacitor C2, a cathode of the polar capacitor C1 is connected with the other end of the capacitor C2 and a 2 nd pin of the interface J4, a 1 st pin of the interface J4 is connected with the 2 nd pin of the interface J3, a 1 st pin of the interface J3 is connected with one end of the resistor R5, the other end of the resistor R5 is connected with one end of the resistor R3, one end of the resistor R4 and the cathode of the polar capacitor C4, and the other end of the capacitor C4 is connected with the cathode of the capacitor C2, and the other end of the resistor R4 is connected with the chip U2, the other end of the chip C4 is connected with the chip 2, and the 3, the other end of the chip is connected with the 3 and the 3, the 3 is connected with the 3 th pin of the chip, and the 3 is connected with the pin of the chip, and the chip is connected with the 3.
As shown in fig. 3, the frequency divider 3 is a frequency dividing chip U3 with a model of 74LS390, the 1 st pin of the chip U3 is connected with the 10 th pin of the chip U3, the 2 nd pin of the chip U3 is grounded, the 3 rd pin of the chip U3 is connected with the 15 th pin of the chip U3, the 4 th pin of the chip U3 is connected with the 6 th pin of the chip U2, the 6 th pin of the chip U3 is connected with the 12 th pin of the chip U3, the 8 th pin of the chip U3 is grounded, the 13 th pin of the chip U3 is connected with the 44 th pin of the chip U1, the 14 th pin of the chip U3 is grounded, and the 16 th pin of the chip U3 is connected with the 38 th pin of the chip U1.
As shown in fig. 4, the display screen 4 is an OLED display chip U4, the 1 st pin of the chip U4 is grounded, the 2 nd pin of the chip U4 is connected with the 38 rd pin of the chip U1, the 3 rd pin of the chip U4 is connected with the 18 th pin of the chip U1, the 4 th pin of the chip U4 is connected with the 19 th pin of the chip U1, the 5 th pin of the chip U4 is connected with the 20 th pin of the chip U1, the 6 th pin of the chip U4 is connected with the 21 st pin of the chip U1, and the 7 th pin of the chip U4 is connected with the 22 nd pin of the chip U1.
As shown in fig. 5, the key circuit 5 includes a switch S1, a switch S2, a switch S3, and a switch S4, where one end of the switch S1 is connected to one end of the switch S2, one end of the switch S3, and one end of the switch S4, respectively, and is grounded, the other end of the switch S1 is connected to the 8 th pin of the chip U1, the other end of the switch S2 is connected to the 9 th pin of the chip U1, the other end of the switch S3 is connected to the 10 th pin of the chip U1, and the other end of the switch S4 is connected to the 11 th pin of the chip U1.
In a specific embodiment, the invention uses a triode amplifying circuit to amplify the collected voltage, uses a trigger 2 to shape the collected sine wave triangular wave square wave and output square wave signals with equal frequency to the controller 1, when the frequency of the input signal is overlarge, the signals are transmitted into a frequency divider 3 to be subjected to frequency division treatment and then are transmitted to the controller 1, the controller 1 processes the input square wave signals, records the number of all rising edges in one period and calculates to obtain corresponding frequencies, and the display screen 4 displays the frequencies. The invention adopts low frequency, medium frequency and high frequency signals (40 HZ,4KHZ and 400KHZ are recommended) with specific frequency to detect the equipment, namely the signals with specific frequency are connected with the device and collected, when the frequency error between the detected frequency of the device and the specific signal is less than five percent, the working state of the equipment can be identified as normal and reliable, a magneto-electric detonator exploder (exploder) with normal working state is connected to the device, a detection key in a key circuit 4 is pressed, then an explosion signal is provided instantly, the frequency of the exploder can be measured, and the frequency value of the detected signal (frequency value provided by an exploder manufacturer can be directly input without detection) is input into the device. In the field condition, the two measuring ends of the device are connected with the port (namely the part connected with the detonator leg wire) at the bottom of the perforator, then the detection key in the key circuit 4 is pressed, and the detonator is detonated by the magneto-electric detonator. When the detonation signal can normally reach the bottom port of the perforator, the green light of the detection device is turned on, the frequency of the signal can be displayed on the display screen 4, if the green light is not turned on, the detonation signal can not normally reach the bottom port of the perforator, troubleshooting is needed, detection is carried out again after troubleshooting until the signal detection is successful, and the detonator can be connected and the next construction is carried out.
In this embodiment, the reset key may initialize all programs and read the stored comparison value, and when the operation of the device enters some unstable states, the reset key is pressed to restore the device to the initial state; the detection key is used for detecting the frequency input by the input end, and when the device is connected with a signal source, the frequency of the signal can be detected by pressing the key; the digit key is used for switching the current comparison value digits to be adjusted, when the digit key is pressed, the digits of the display screen 4 are changed, and the digits of the frequency digits to be adjusted are determined in the mode, so that convenience is brought to rapid adjustment of the frequency digits; the key can be added to realize +1 on the bit number to be adjusted of the current comparison value, when the bit number is 2, the original number 0 can be changed into 1 by pressing the key, and when the key is pressed to 9 all the time, automatic carry can be completed by continuing pressing, namely, the number on the higher bit is added with 1 and the current bit is reset to 0; the reduction key can be used for reducing 1 on the number of bits to be adjusted of the current comparison value, the second bit of the comparison value can be changed from 1 to 0 by pressing the reduction key, the reduction of the numerical value is realized, and when the reduction is 0, the reduction key is continuously pressed, and then the number on the higher level of bits is reduced by 1 to realize the backspacing. In this embodiment, the display screen 4 may display the following 4 lines of content: line 1 is fixedly shown as: "current frequency (HZ)"; line 2 shows the frequency value of the signal detected by the invention, which is not displayed in the initial state and can be displayed as a number in the measurement state; line 3 shows: comparison: XXXX ", wherein XXXX is a number, up to 7 bits, which can be modified by the key circuit 4; line 4 shows: "number of bits: x' is a number, and the number of digits of the frequency comparison value to be currently adjusted is changed when the digit key in the key circuit 4 is pressed for adjustment, and the change range is 1-7. In this embodiment, for the adjustment of the frequency comparison value, the number of bits is first adjusted to a desired value by pressing a number key, where the value is generally a value of the detected frequency value or a frequency value provided by a manufacturer before the signal source leaves the factory in which the corresponding number of bits is adjusted by pressing an add/subtract key under the condition that the signal is ensured to be normal in the case of field use. The comparison value is stored every time the comparison value is adjusted, and the comparison value is automatically stored after power failure. In the specific operation process, the 4200Hz is taken as an example, the number of bits is adjusted to 3, then the 3 rd bit value is adjusted to 2, the number of bits is adjusted to 4 next, then the 4 th bit value is adjusted to 4, and the frequency adjustment can be completed. In this embodiment, when the frequency comparison value and the frequency detection value are equal (within ±5% of the frequency comparison value is yes), the LED lamp is turned on, and the display screen 4 displays that the comparison value and the frequency detection value are equal. In this embodiment, when any unexpected situation occurs in the system, the system can be restored to the initial state by pressing the reset key to reset the machine.
Through the design, the frequency of an input signal can be detected and displayed, fixed frequency can be set in advance, the frequency which is set in advance can be quickly adjusted, the frequency which is set in advance can be automatically recorded, the frequency detection device provided by the invention can still keep the memory of the frequency after power failure, and the signal of the fixed frequency which is set in advance is detected by the frequency detection device in the detection process after the frequency setting, so that the led indicator lamp can be lightened to intuitively display, and the device can restore to an initial state when entering a certain unstable state.
Claims (6)
1. The utility model provides a detection device of magneto-electric detonator initiation signal for perforation, its characterized in that includes controller (1), and respectively with trigger (2), frequency divider (3), display screen (4) and key circuit (5) that controller (1) is connected, wherein, trigger (2) with frequency divider (3) are connected.
2. The device for detecting the detonation signal of the magneto-electric detonator for perforation according to claim 1, wherein the controller (1) comprises a singlechip chip U1 with the model of STC12C5A60S2, a power interface J1 and a program downloading interface J2, wherein,
the 1 st pin of the chip U1 is connected with the cathode of the light emitting diode D2, the anode of the light emitting diode D2 is connected with one end of a resistor R10, the other end of the resistor R10 is connected with the 38 st pin of the chip U1, the 4 th pin of the chip U1 is respectively connected with the cathode of a polar capacitor C5, one switch of a switch S5 and a grounding resistor R9, the other end of the switch S5 is respectively connected with the anode of the polar capacitor C5 and the 38 st pin of the chip U1, the 5 th pin of the chip U1 is connected with the 3 rd pin of the interface J2, the 7 th pin of the chip U1 is connected with the 2 nd pin of the interface J2, the 1 st pin of the interface J2 is grounded, the 4 th pin of the interface J2 is respectively connected with the 1 st pin of the interface J1 and one end of a single-knife switch S6, the 2 nd pin of the interface J1 is grounded, the other end of the single-pole switch S6 is connected with a 38 th pin of the chip U1, an 8 th pin, a 9 th pin, a 10 th pin and an 11 th pin of the chip U1 are respectively connected with the key circuit (5), a 14 th pin of the chip U1 is respectively connected with one end of the crystal oscillator Y1 and the grounding capacitor C6, a 15 th pin of the chip U1 is respectively connected with the other end of the crystal oscillator Y1 and the grounding capacitor C7, a 16 th pin of the chip U1 is grounded, an 18 th pin, a 19 th pin, a 20 th pin, a 21 st pin and a 22 nd pin of the chip U1 are respectively connected with the display screen (4), a 43 rd pin of the chip U1 is connected with the trigger (2), a 44 th pin of the chip U1 is connected with the frequency divider (3), and a 38 th pin of the chip U1 is also respectively connected with one end of the resistor R8, the trigger (2), the frequency divider (3) is connected with the display screen (4), the other end of the resistor R8 is connected with the positive electrode of the light emitting diode D1, and the negative electrode of the light emitting diode D1 is grounded.
3. The device for detecting the detonation signal of the magneto-electric detonator for perforation according to claim 2, wherein the trigger (2) comprises a schmitt trigger chip U2 with the model number of 74LS14, a triode Q1 with the model number of 2SC3355, a signal input interface J3 and a potentiometer interface J4, wherein,
the 1 st pin of chip U2 is connected with the collector of triode Q1 and the one end of resistance R1 respectively, the other end of resistance R1 is connected with the one end of resistance R2 and the 38 th pin of chip U1 respectively, the other end of resistance R2 is connected with the positive pole of polarity electric capacity C1 respectively, triode Q1's base, the one end of resistance R3 and the one end of electric capacity C2, the negative pole of polarity electric capacity C1 is connected with the other end of electric capacity C2 and the 2 nd pin of interface J4 respectively, the 1 st pin of interface J4 is connected with the 2 nd pin of interface J3, the 1 st pin of interface J3 is connected with the one end of resistance R5, the other end of resistance R5 is connected with the other end of resistance R3 respectively, the one end of resistance R4, the one end of electric capacity C3 and the positive pole of polarity electric capacity C4 respectively, the other end of resistance R4 is connected with the projecting pole of triode Q1, the other end of electric capacity C3 and the positive pole of polarity electric capacity C4 respectively, the 2 nd pin of chip U2 is connected with the 3 nd pin of electric capacity C2, the U2 nd pin of chip U2 is connected with the 3 nd pin of interface J4, the U2 nd pin of chip U2 is connected with the U2 and the first pin of chip 3 (U2 and the U2 is connected with the U2 pin of chip 7 and the U2 is connected with the U2 and the pin of chip 7 (the U2 is connected with the U2 and the U2 is connected with the chip 3 and the pin of the U2 is 3 and the chip is connected with the chip is 3).
4. The device for detecting detonation signals of the magneto-electric detonator for perforation according to claim 3, wherein the frequency divider (3) adopts a frequency division chip U3 with the model of 74LS390, a 1 st pin of the chip U3 is connected with a 10 th pin of the chip U3, a 2 nd pin of the chip U3 is grounded, a 3 rd pin of the chip U3 is connected with a 15 th pin of the chip U3, a 4 th pin of the chip U3 is connected with a6 th pin of the chip U2, a6 th pin of the chip U3 is connected with a 12 th pin of the chip U3, an 8 th pin of the chip U3 is grounded, a 13 th pin of the chip U3 is connected with a 44 th pin of the chip U1, a 14 th pin of the chip U3 is grounded, and a 16 th pin of the chip U3 is connected with a 38 th pin of the chip U1.
5. The device for detecting the detonation signal of the magneto-electric detonator for perforation according to claim 2, wherein the display screen (4) is an OLED display chip U4, a 1 st pin of the chip U4 is grounded, a 2 nd pin of the chip U4 is connected with a 38 rd pin of the chip U1, a 3 rd pin of the chip U4 is connected with a 18 th pin of the chip U1, a 4 th pin of the chip U4 is connected with a 19 th pin of the chip U1, a 5 th pin of the chip U4 is connected with a 20 th pin of the chip U1, a6 th pin of the chip U4 is connected with a 21 st pin of the chip U1, and a 7 th pin of the chip U4 is connected with a 22 nd pin of the chip U1.
6. The device for detecting the detonation signal of the magneto-electric detonator for perforation according to claim 2, wherein the key circuit (5) comprises a switch S1, a switch S2, a switch S3 and a switch S4, wherein,
one end of the switch S1 is connected with one end of the switch S2, one end of the switch S3 and one end of the switch S4 respectively, and is grounded, the other end of the switch S1 is connected with the 8 th pin of the chip U1, the other end of the switch S2 is connected with the 9 th pin of the chip U1, the other end of the switch S3 is connected with the 10 th pin of the chip U1, and the other end of the switch S4 is connected with the 11 th pin of the chip U1.
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