CN220796022U - Intelligent detector integrating vibration and gas monitoring - Google Patents
Intelligent detector integrating vibration and gas monitoring Download PDFInfo
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- CN220796022U CN220796022U CN202322599021.7U CN202322599021U CN220796022U CN 220796022 U CN220796022 U CN 220796022U CN 202322599021 U CN202322599021 U CN 202322599021U CN 220796022 U CN220796022 U CN 220796022U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 56
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 239000002737 fuel gas Substances 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 138
- 230000005669 field effect Effects 0.000 claims description 18
- 230000000087 stabilizing effect Effects 0.000 claims description 17
- 239000011324 bead Substances 0.000 claims description 9
- 229910000859 α-Fe Inorganic materials 0.000 claims description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model discloses an intelligent detector integrating vibration and gas monitoring, which comprises a bottom shell, wherein a display shell is arranged in the bottom shell, a battery and a main board are arranged in the display shell, the main board is positioned above the battery, an upper cover is arranged at the top of the bottom shell in a matched manner, a sensor placing part is arranged at the bottom of the bottom shell, and a sensor is arranged in the sensor placing part; the main board comprises a main power circuit, a rear-stage main control circuit, a fuel gas detection circuit and a vibration monitoring circuit, wherein the main power circuit is respectively connected with the rear-stage main control circuit, the fuel gas detection circuit and the vibration monitoring circuit; the utility model can monitor vibration in real time and periodically time gas leakage detection.
Description
Technical Field
The utility model relates to an intelligent detector, in particular to an intelligent detector integrating vibration and gas monitoring.
Background
Along with the rapid expansion of the application field of the fuel gas, the safety of the underground fuel gas pipeline is particularly important because of the inflammable and explosive gas characteristics of the fuel gas pipeline while great convenience is brought to the production and life of people, and once leakage occurs, serious influence is generated, so that great threat is brought to the life and property safety of people.
When the underground gas pipeline vibrates, gas leakage is easy to occur, so that the vibration condition of the pipeline needs to be monitored in real time and the leakage condition of the gas needs to be detected regularly.
Disclosure of Invention
The utility model aims to provide an intelligent detector integrating vibration and gas monitoring, which is mainly used for real-time vibration monitoring and periodic timing gas leakage detection of an underground gas pipeline and can acquire vibration early-warning information in real time.
In order to achieve the purpose, the utility model adopts the technical means that:
the utility model provides an intelligent detector integrating vibration and gas monitoring, includes the drain pan, and the inside of drain pan is equipped with the display shell, is equipped with battery, mainboard in the display shell, the mainboard can dismantle the inside of locating the display shell, the mainboard is located the top of battery, the top cooperation of drain pan is equipped with the upper cover, the upper cover is located the periphery of display shell, the bottom of drain pan is equipped with sensor and places the portion, sensor is equipped with the sensor in the portion of placing;
the main board comprises a main power supply circuit, a rear-stage main control circuit, a gas detection circuit and a vibration monitoring circuit, wherein the main power supply circuit is respectively connected with the rear-stage main control circuit, the gas detection circuit and the vibration monitoring circuit, and the main power supply circuit respectively supplies power to the rear-stage main control circuit, the gas detection circuit and the vibration monitoring circuit;
the battery is connected with the main power supply circuit, and the rear-stage main control circuit is respectively connected with the fuel gas detection circuit and the vibration monitoring circuit;
the sensor is connected with the gas detection circuit.
Further, the main power supply circuit comprises a 3.3V power supply circuit and a 5V power supply circuit;
the 3.3V power supply circuit comprises a 3.3V voltage stabilizing chip VR1, wherein the Vin pin of the 3.3V voltage stabilizing chip VR1 is connected with a battery, the Vin pin of the 3.3V voltage stabilizing chip VR1 is connected with a capacitor C1 and a capacitor C2, the capacitor C1 is connected with the capacitor C2 in parallel, and the capacitor C1 and the capacitor C2 are grounded; the GND pin of the 3.3V voltage stabilizing chip VR1 is grounded; the Vout pin of the 3.3V voltage stabilizing chip VR1 outputs 3.3V voltage, the 3.3V voltage is converted into 3.3VD voltage through the magnetic bead L1, the Vout pin of the 3.3V voltage stabilizing chip VR1 is connected with a capacitor C3 and a capacitor C4, the capacitor C3 is connected with the capacitor C4 in parallel, and the capacitor C3 and the capacitor C4 are grounded;
the 5V power supply circuit comprises a power supply chip U2, a resistor R10 is connected to a 1 pin of the power supply chip U2, one end of the resistor R10 is connected with a drain electrode of a field effect tube Q3, a resistor R9 is connected between a source electrode and a grid electrode of the field effect tube Q3, the source electrode of the field effect tube Q3 is connected with a battery, the grid electrode of the field effect tube Q3 is connected with a capacitor C16, the capacitor C16 is grounded, the grid electrode of the field effect tube Q3 is connected with a collector electrode of a triode Q4, an emitter electrode of the triode Q4 is grounded, a base electrode of the triode Q4 is connected with a resistor R11, and the resistor R11 is connected with a later-stage main control circuit; the drain electrode of the field effect tube Q3 is connected with a capacitor C19 and a capacitor C20, the capacitor C19 is connected with the capacitor C20 in parallel, and the capacitor C19 and the capacitor C20 are grounded;
the power chip U2 is characterized in that a capacitor C23 is connected to a pin 2 of the power chip U2, one end of the capacitor C23 is connected to a capacitor C22, one end of the capacitor C22 is connected with a pin 1 of the power chip U2, the other end of the capacitor C22 is grounded, and a pin 2 of the power chip U2 is connected with one end of the resistor R10;
a capacitor C21 is connected to the 4 pin of the power chip U2, and the capacitor C21 is grounded;
an inductor L2 is connected between the 2 pin and the 5 pin of the power chip U2, and the 5 pin and the 6 pin of the power chip U2 are connected; the power supply chip U2 is characterized in that a 5 pin of the power supply chip U2 is connected with the positive electrode of a diode D1, the negative electrode of the diode D1 is connected with a capacitor C18 and a capacitor C17, the capacitor C18 and the capacitor C17 are connected in parallel, the negative electrode of the capacitor C18 is grounded, one end of the capacitor C17 is grounded, a 7 pin of the power supply chip U2 is connected with an 8 pin, and the 7 pin is grounded;
the cathode of the diode D1 is connected with a resistor R12 and a resistor R13, the resistor R12 and the resistor R13 are connected in series, and one end of the resistor R13 is grounded; the cathode of the diode D1 outputs 5V voltage;
and a pin 3 of the power chip U2 is connected with the resistor R13.
Further, the power chip U2 is of the model AX5201.
Further, the model of the 3.3V voltage stabilizing chip VR1 is XC6206P332MR.
Further, the rear-stage main control circuit comprises a chip U3, the model of the chip U3 is STM32L010C6T6, a 2 pin of the chip U3 is connected with a SET signal, a 7 pin of the chip U3 is connected with a resistor R15 and a capacitor C32, the resistor R15 is connected with the capacitor C32 in parallel, one end of the resistor R15 is connected with 3.3VD voltage, and one end of the capacitor C32 is grounded;
the chip U3 10 pin with shake monitoring circuit connection, chip U3 11 pin with gas detection circuit connection, chip U3 16 pin with in the 5V power supply circuit resistance R11's one end is connected, chip U3's 23 pin ground connection, chip U3's 24 pin is connected with 3.3VD voltage, chip U3's 30 pin, 31 pin with shake monitoring circuit connection, chip U3's 35 pin ground connection, chip U3's 36 pin connects 3.3VD voltage, chip U3's 44 pin is connected with resistance R14, resistance R14's one end ground connection, chip U3's 47 pin ground connection, chip U3's 48 pin is connected with 3.3VD voltage.
Further, the gas detection circuit comprises a chip U4, the chip U4 comprises a chip U4A and a chip U4B, the types of the chip U4A and the chip U4B are LM358DR2G, the non-inverting input end of the chip U4A is connected with a capacitor C34, one end of the capacitor C34 is grounded, the non-inverting input end of the chip U4A is connected with a signal SEN of the sensor, the inverting input end of the chip U4A is connected with the output end of the chip U4A, the positive power end of the chip U4A is connected with a capacitor C30, one end of the capacitor C30 is grounded, the positive power end of the chip U4A is connected with a ferrite bead FB1, and one end of the ferrite bead FB1 is connected with 5V voltage;
the negative power supply of the chip U4A is grounded;
the output end of the chip U4A is connected with a resistor R17, one end of the resistor R17 is connected with the non-inverting input end of the chip U4B, the output end of the chip U4A is connected with a capacitor C33, one end of the capacitor C33 is grounded, the non-inverting input end of the chip U4B is connected with a resistor R16, and one end of the resistor R16 is grounded;
the inverted input end of the chip U4B is connected with the output end of the chip U4B, the output end of the chip U4B is connected with a capacitor C31, one end of the capacitor C31 is grounded, and the output end of the chip U4B is connected with the 11 pin of the chip U3.
Further, the vibration monitoring circuit comprises a chip U5, the model of the chip U5 is ADXL345, a 1 pin of the chip U5 is connected with a capacitor C35, one end of the capacitor C35 is grounded, a 6 pin of the chip U5 is connected with a capacitor C36, one end of the capacitor C36 is grounded, the 1 pin of the chip U5 is connected with the 6 pin, the 1 pin of the chip U5 is connected with 3.3VD voltage, a 7 pin of the chip U5 is connected with a resistor R21, an 8 pin of the chip U5 is connected with a 10 pin of the chip U3, a 13 pin of the chip U5 is connected with a resistor R20, one end of the resistor R20 is connected with 3.3VD voltage, and the 13 pin of the chip U5 is connected with a 31 pin of the chip U3. The 14 pin of the chip U5 is connected with a resistor R18, one end of the resistor R18 is connected with 3.3VD voltage, and the 14 pin of the chip U5 is connected with the 30 pin of the chip U3; the 2 pins and the 12 pins of the chip U5 are grounded, the 4 pins of the chip U5 are connected with the 5 pins, and the 4 pins of the chip U5 are grounded.
Further, the battery is a lithium-ion battery.
Further, a surface patch is arranged on the main board.
Further, the sensor placing part comprises a sensor upper shell and a sensor lower shell, the sensor upper shell is arranged at the bottom of the bottom shell through a hexagonal nut, the sensor lower shell is arranged at the bottom of the sensor upper shell, the sensor lower shell is provided with a flameproof sheet, the flameproof sheet is provided with a flameproof sheet compression ring, the flameproof sheet compression ring is provided with a sensor plate, and the sensor is arranged on the sensor plate.
The utility model at least comprises the following beneficial effects:
the utility model relates to an intelligent detector integrating vibration monitoring and combustible gas leakage detection, which is mainly used for real-time vibration monitoring and periodic timing gas leakage detection of an underground gas pipeline, can effectively improve the inspection efficiency and hidden danger inspection accuracy of related inspection personnel of a gas company, and can acquire vibration early warning information in real time.
The utility model integrates the vibration function and the gas leakage function into a whole; the vibration monitoring circuit collects vibration data, and the gas detection circuit detects gas leakage.
The utility model has ultra-low power consumption; the model of a chip U5 in the vibration monitoring circuit is ADXL345, a low-power consumption 3-axis accelerometer is used for vibration monitoring, a micro control unit MCU in a post-stage main control circuit can be interrupted to wake up, a lithium sub battery pack is used for supplying power, the whole machine is designed with low power consumption, and when the system is in sleep, part of high-power consumption circuit power supply is cut off, and the system is periodically waken up and is externally interrupted to wake up.
The utility model has long service life; the sensor connected with the gas detection circuit adopts an MEMS flammable gas detection sensor, is suitable for vibration and leakage detection scenes of the buried gas pipeline, can work independently for a long time, and has a standard working time of 5 years.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic internal cross-sectional view of an embodiment of the present utility model;
FIG. 3 is an exploded schematic view of an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a 5V power supply circuit according to an embodiment of the utility model;
FIG. 5 is a schematic diagram of a 3.3V power supply circuit according to an embodiment of the utility model;
FIG. 6 is a schematic diagram of a post-stage master control circuit according to an embodiment of the present utility model;
FIG. 7 is a schematic diagram of a gas detection circuit according to an embodiment of the present utility model;
FIG. 8 is a schematic diagram of a vibration monitoring circuit according to an embodiment of the present utility model;
fig. 9 is a schematic diagram of a 3.3V voltage to 3.3VD voltage circuit according to an embodiment of the present utility model.
Description of the reference numerals
In the figure, 1, an upper cover; 2. a display housing; 3. a face paste; 4. a main board; 5. a hexagonal nut; 6. a lithium-ion battery; 7. a bottom case; 8. a sensor upper case; 9. a sensor plate; 10. explosion-proof sheet compression ring; 11. explosion-proof sheets; 12. and a sensor lower case.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Referring to fig. 1-3, an intelligent detector integrating vibration and gas monitoring comprises a bottom shell 7, wherein a display shell 2 is arranged in the bottom shell 7, a battery and a main board 4 are arranged in the display shell 2, the battery is a lithium sub-battery pack 6, the main board 4 is detachably arranged in the display shell 2, the main board 4 is positioned above the battery, a surface patch 3 is arranged on the main board 4, one surface of the surface patch 3 is printed with contents such as product names, function indications, warning characters and the like, and the other surface of the surface patch 3 is covered with plastic paster of glue. The display housing 2 is a transparent rigid plastic housing, and the display housing 2 is inverted in a bowl-like manner inside the bottom shell 7, and the contents on the sticker 3 can be seen through the top of the display housing 2. The top cooperation of drain pan 7 is equipped with upper cover 1, and upper cover 1 is annular, is located the periphery of demonstration casing 2 surrounds the top of showing casing 2, and drain pan 7 and upper cover 1 are detachable connection, if through the bolt fastening, this is prior art, and it is not excessive here to describe in detail. The bottom shell 7 is fixed with the upper cover 1, and simultaneously limits the display shell 2, so that the display shell 2 is fixed in position. The bottom of the bottom shell 7 is provided with a sensor placing part, and a sensor is arranged in the sensor placing part.
The sensor placing part comprises a sensor upper shell 8 and a sensor lower shell 12, the sensor upper shell 8 is arranged at the bottom of the bottom shell 7 through a hexagonal nut 5, the sensor lower shell 12 is arranged at the bottom of the sensor upper shell 8, and the sensor lower shell 12 is clamped on the sensor upper shell 8. The sensor is characterized in that the sensor lower shell 12 is provided with an explosion-proof sheet 11, the explosion-proof sheet 11 is provided with an explosion-proof sheet pressing ring 10, the explosion-proof sheet pressing ring 10 is provided with a sensor plate 9, and the sensor is arranged on the sensor plate 9. The sensor adopts MEMS flammable gas detection sensor.
As shown in fig. 4-9, the main board 4 includes a main power circuit, a post-stage main control circuit, a gas detection circuit and a vibration monitoring circuit, and the main power circuit is respectively connected with the post-stage main control circuit, the gas detection circuit and the vibration monitoring circuit. The main power supply circuit supplies power to the rear-stage main control circuit, the fuel gas detection circuit and the vibration monitoring circuit respectively; the battery is connected with the main power supply circuit, and the rear-stage main control circuit is respectively connected with the fuel gas detection circuit and the vibration monitoring circuit; the sensor is connected with the gas detection circuit.
The main power supply circuit comprises a 3.3V power supply circuit and a 5V power supply circuit; as shown in fig. 5 and 9, the 3.3V power supply circuit includes a 3.3V voltage stabilizing chip VR1, and the model of the 3.3V voltage stabilizing chip VR1 is XC6206P332MR. The Vin pin of the 3.3V voltage-stabilizing chip VR1 is connected with a battery, the Vin pin of the 3.3V voltage-stabilizing chip VR1 is connected with a capacitor C1 and a capacitor C2, the capacitor C1 is connected with the capacitor C2 in parallel, and the capacitor C1 and the capacitor C2 are grounded; the GND pin of the 3.3V voltage stabilizing chip VR1 is grounded; the Vout pin of 3.3V steady voltage chip VR1 outputs 3.3V voltage, and as the fig. 9,3.3V voltage passes through magnetic bead L1 and converts 3.3VD voltage, the Vout pin of 3.3V steady voltage chip VR1 is connected with electric capacity C3, electric capacity C4, electric capacity C3 with electric capacity C4 connects in parallel, electric capacity C3 with electric capacity C4 all ground connection.
As shown in fig. 4, the 5V power supply circuit includes a power supply chip U2, and the model number of the power supply chip U2 is AX5201. The power chip U2 is characterized in that a resistor R10 is connected to a 1 pin of the power chip U2, one end of the resistor R10 is connected with a drain electrode of a field effect transistor Q3, a resistor R9 is connected between a source electrode and a grid electrode of the field effect transistor Q3, the source electrode of the field effect transistor Q3 is connected with a battery, the grid electrode of the field effect transistor Q3 is connected with a capacitor C16, the capacitor C16 is grounded, a grid electrode of the field effect transistor Q3 is connected with a collector electrode of a triode Q4, an emitter electrode of the triode Q4 is grounded, a base electrode of the triode Q4 is connected with a resistor R11, and the resistor R11 is connected with the rear-stage main control circuit; the drain electrode of the field effect tube Q3 is connected with a capacitor C19 and a capacitor C20, the capacitor C19 is connected with the capacitor C20 in parallel, and the capacitor C19 and the capacitor C20 are grounded.
The power chip U2 is characterized in that a capacitor C23 is connected to the 2 pin of the power chip U2, one end of the capacitor C23 is connected with a capacitor C22, one end of the capacitor C22 is connected with the 1 pin of the power chip U2, the other end of the capacitor C22 is grounded, and the 2 pin of the power chip U2 is connected with one end of the resistor R10.
And a capacitor C21 is connected to the 4 pin of the power chip U2, and the capacitor C21 is grounded.
An inductor L2 is connected between the 2 pin and the 5 pin of the power chip U2, and the 5 pin and the 6 pin of the power chip U2 are connected; the power chip U2 is characterized in that the 5 pins of the power chip U2 are connected with the positive electrode of the diode D1, the negative electrode of the diode D1 is connected with the capacitor C18 and the capacitor C17, the capacitor C18 and the capacitor C17 are connected in parallel, the negative electrode of the capacitor C18 is grounded, one end of the capacitor C17 is grounded, the 7 pins of the power chip U2 are connected with the 8 pins, and the 7 pins are grounded.
The cathode of the diode D1 is connected with a resistor R12 and a resistor R13, the resistor R12 and the resistor R13 are connected in series, and one end of the resistor R13 is grounded; the cathode of the diode D1 outputs 5V voltage.
And a pin 3 of the power chip U2 is connected with the resistor R13.
Referring to fig. 6, the back-stage main control circuit includes a chip U3, the model of the chip U3 is STM32L010C6T6, the 2 pin of the chip U3 is connected with the SET signal, the 7 pin of the chip U3 is connected with a resistor R15 and a capacitor C32, the resistor R15 is connected in parallel with the capacitor C32, one end of the resistor R15 is connected with 3.3VD voltage, and one end of the capacitor C32 is grounded.
The utility model discloses a high-voltage power supply circuit, including chip U3, gas detection circuit, resistor R11, resistor R14, chip U3, resistor R11, 3's 10 pins with shake monitoring circuit is connected, chip U3's 11 pins with gas detection circuit is connected, chip U3's 16 pins with one end of resistor R11 in the 5V power supply circuit is connected, chip U3's 19 pins are connected with the Lamp (LED), chip U3's 23 pins ground, chip U3's 24 pins are connected with 3.3VD voltage, chip U3's 30 pins, 31 pins with shake monitoring circuit is connected, chip U3's 35 pins ground, chip U3's 36 pins connect 3.3VD voltage, chip U3's 44 pins are connected with resistor R14, resistor R14's one end ground connection, chip U3's 47 pins ground, 48 pins connect 3.3VD voltage. The chip U3 is a micro control unit MCU.
Referring to fig. 7, the gas detection circuit includes a chip U4, the chip U4 includes a chip U4A and a chip U4B, the type of the chip U4A and the type of the chip U4B are LM358DR2G, a non-inverting input end of the chip U4A is connected with a capacitor C34, one end of the capacitor C34 is grounded, a non-inverting input end of the chip U4A is connected with a signal SEN of the sensor, an inverting input end of the chip U4A is connected with an output end of the chip U4A, a positive power end of the chip U4A is connected with a capacitor C30, one end of the capacitor C30 is grounded, a positive power end of the chip U4A is connected with a ferrite bead FB1, and one end of the ferrite bead 1 is connected with a 5V voltage.
The negative power supply of the chip U4A is grounded.
The output end of the chip U4A is connected with a resistor R17, one end of the resistor R17 is connected with the non-inverting input end of the chip U4B, the output end of the chip U4A is connected with a capacitor C33, one end of the capacitor C33 is grounded, the non-inverting input end of the chip U4B is connected with a resistor R16, and one end of the resistor R16 is grounded.
The inverted input end of the chip U4B is connected with the output end of the chip U4B, the output end of the chip U4B is connected with a capacitor C31, one end of the capacitor C31 is grounded, and the output end of the chip U4B is connected with the 11 pin of the chip U3.
Referring to fig. 8, the vibration monitoring circuit includes a chip U5, the model of the chip U5 is ADXL345, a 1 pin of the chip U5 is connected with a capacitor C35, one end of the capacitor C35 is grounded, a 6 pin of the chip U5 is connected with a capacitor C36, one end of the capacitor C36 is grounded, the 1 pin of the chip U5 is connected with the 6 pin, the 1 pin of the chip U5 is connected with 3.3VD voltage, the 7 pin of the chip U5 is connected with a resistor R21, the 8 pin of the chip U5 is connected with the 10 pin of the chip U3, the 13 pin of the chip U5 is connected with a resistor R20, one end of the resistor R20 is connected with 3.3VD voltage, and the 13 pin of the chip U5 is connected with the 31 pin of the chip U3. The 14 pin of the chip U5 is connected with a resistor R18, one end of the resistor R18 is connected with 3.3VD voltage, and the 14 pin of the chip U5 is connected with the 30 pin of the chip U3; the 2 pins and the 12 pins of the chip U5 are grounded, the 4 pins of the chip U5 are connected with the 5 pins, and the 4 pins of the chip U5 are grounded.
The power chip U2 of the main power circuit in fig. 4 can normally operate in the EN terminal enabled (high level) state and supply the operating voltage VCC to the post-stage circuit; and when the EN terminal of the power chip U2 is in a disabled (low level) state, stopping working, and cutting off the working voltage of the later-stage circuit, so that the whole circuit is in a low-power-consumption shutdown mode.
In fig. 5, the 3.3V voltage regulator chip VR1 outputs a 3.3V voltage.
In FIG. 6, the SET signal is high, and the high level of the Z_INT signal generated by the vibration monitoring circuit can wake up the circuit from the low power sleep mode and enter the normal operation mode; on the contrary, under the condition that the 2 conditions are not met, the whole circuit enters a low-power-consumption sleep mode, and in the low-power-consumption sleep mode, only a chip U3 micro-control unit in a later-stage main control circuit and a chip U5 in a vibration monitoring circuit consume weak current (less than or equal to 30 uA), and other circuits do not generate any power consumption.
The SET is a SET key, and a memory device, such as a trigger, is usually used in the circuit, and the initial state of the device is uncertain, that is, after power-up, the memory may be 1 or 0, and random, in order for the circuit to operate according to the designed function, a certain state needs to be given, and a control key is added at this time: SET.
In fig. 6, the micro control unit MCU of the chip U3 is powered by a battery in a low power sleep mode, the high level of the SET signal or the vibration monitoring circuit in fig. 8 generates the high level of the z_int signal or the internal clock of the chip U3 in the post-stage main control circuit is timed to be time, so that the micro control unit MCU wakes up to work normally, the micro control unit MCU enables the power chip U2 in fig. 4 to be controlled, the main power circuit supplies power to the post-stage main control circuit, so that the post-stage main control circuit starts to work, the acquisition circuit in fig. 7 and 8 starts to work, the chip U4 in the gas detection circuit acquires the signal SEN from the MEMS flammable gas sensor to perform operational amplification processing, and then the gas concentration is obtained through the processing of the post-stage main control circuit, and the chip U5 in the vibration monitoring circuit acquires vibration data and transmits the vibration data to the post-stage main control circuit.
In fig. 8, after detecting a vibration alarm in a low power consumption mode, the chip U5 of the vibration monitoring circuit interrupts the output of the z_int signal, and wakes up the micro control unit MCU, so that the later stage main control circuit starts to work.
What is not described in detail in this specification is of the prior art known to those skilled in the art.
Although embodiments of the utility model have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present utility model. Additional modifications will readily occur to those skilled in the art. Therefore, the utility model is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. The intelligent detector integrating vibration and gas monitoring is characterized by comprising a bottom shell (7), wherein a display shell (2) is arranged in the bottom shell (7), a battery and a main board (4) are arranged in the display shell (2), the main board (4) is detachably arranged in the display shell (2), the main board (4) is positioned above the battery, an upper cover (1) is matched with the top of the bottom shell (7), the upper cover (1) is positioned on the periphery of the display shell (2), a sensor placing part is arranged at the bottom of the bottom shell (7), and a sensor is arranged in the sensor placing part;
the main board (4) comprises a main power supply circuit, a rear-stage main control circuit, a gas detection circuit and a vibration monitoring circuit, wherein the main power supply circuit is respectively connected with the rear-stage main control circuit, the gas detection circuit and the vibration monitoring circuit, and the battery is used for respectively supplying power to the rear-stage main control circuit, the gas detection circuit and the vibration monitoring circuit through the main power supply circuit;
the rear-stage main control circuit is respectively connected with the fuel gas detection circuit and the vibration monitoring circuit;
the sensor is connected with the gas detection circuit.
2. The intelligent detector integrating vibration and gas monitoring as claimed in claim 1, wherein the main power circuit comprises a 3.3V power supply circuit and a 5V power supply circuit;
the 3.3V power supply circuit comprises a 3.3V voltage stabilizing chip VR1, wherein the Vin pin of the 3.3V voltage stabilizing chip VR1 is connected with the battery, the Vin pin of the 3.3V voltage stabilizing chip VR1 is connected with a capacitor C1 and a capacitor C2, the capacitor C1 is connected with the capacitor C2 in parallel, and the capacitor C1 and the capacitor C2 are grounded; the GND pin of the 3.3V voltage stabilizing chip VR1 is grounded; the Vout pin of the 3.3V voltage stabilizing chip VR1 outputs 3.3V voltage, the 3.3V voltage is converted into 3.3VD voltage through the magnetic bead L1, the Vout pin of the 3.3V voltage stabilizing chip VR1 is connected with a capacitor C3 and a capacitor C4, the capacitor C3 is connected with the capacitor C4 in parallel, and the capacitor C3 and the capacitor C4 are grounded;
the 5V power supply circuit comprises a power supply chip U2, a resistor R10 is connected to a 1 pin of the power supply chip U2, one end of the resistor R10 is connected with a drain electrode of a field effect transistor Q3, a resistor R9 is connected between a source electrode and a grid electrode of the field effect transistor Q3, the source electrode of the field effect transistor Q3 is connected with the battery, a grid electrode of the field effect transistor Q3 is connected with a capacitor C16, the capacitor C16 is grounded, a grid electrode of the field effect transistor Q3 is connected with a collector electrode of a triode Q4, an emitter electrode of the triode Q4 is grounded, a base electrode of the triode Q4 is connected with a resistor R11, and the resistor R11 is connected with a rear-stage main control circuit; the drain electrode of the field effect tube Q3 is connected with a capacitor C19 and a capacitor C20, the capacitor C19 is connected with the capacitor C20 in parallel, and the capacitor C19 and the capacitor C20 are grounded;
the power chip U2 is characterized in that a capacitor C23 is connected to a pin 2 of the power chip U2, one end of the capacitor C23 is connected with a capacitor C22, one end of the capacitor C22 is connected with a pin 1 of the power chip U2, the other end of the capacitor C22 is grounded, and a pin 2 of the power chip U2 is connected with one end of the resistor R10;
a capacitor C21 is connected to the 4 pin of the power chip U2, and the capacitor C21 is grounded;
an inductor L2 is connected between the 2 pin and the 5 pin of the power chip U2, and the 5 pin and the 6 pin of the power chip U2 are connected; the power supply chip U2 is characterized in that a 5 pin of the power supply chip U2 is connected with the positive electrode of a diode D1, the negative electrode of the diode D1 is connected with a capacitor C18 and a capacitor C17, the capacitor C18 and the capacitor C17 are connected in parallel, the negative electrode of the capacitor C18 is grounded, one end of the capacitor C17 is grounded, a 7 pin of the power supply chip U2 is connected with an 8 pin, and the 7 pin is grounded;
the cathode of the diode D1 is connected with a resistor R12 and a resistor R13, the resistor R12 and the resistor R13 are connected in series, and one end of the resistor R13 is grounded; the cathode of the diode D1 outputs 5V voltage;
and a pin 3 of the power chip U2 is connected with the resistor R13.
3. The intelligent detector integrating vibration and gas monitoring as claimed in claim 2, wherein the power chip U2 is of the type AX5201.
4. The intelligent detector integrating vibration and gas monitoring as claimed in claim 2, wherein the 3.3V voltage stabilizing chip VR1 is XC6206P332MR.
5. The intelligent detector integrating vibration and gas monitoring as claimed in claim 2, wherein the rear-stage main control circuit comprises a chip U3, the model of the chip U3 is STM32L010C6T6, a 2 pin of the chip U3 is connected with a SET signal, a 7 pin of the chip U3 is connected with a resistor R15 and a capacitor C32, the resistor R15 is connected with the capacitor C32 in parallel, one end of the resistor R15 is connected with 3.3VD voltage, and one end of the capacitor C32 is grounded;
the chip U3 10 pin with shake monitoring circuit connection, chip U3 11 pin with gas detection circuit connection, chip U3 16 pin with in the 5V power supply circuit resistance R11's one end is connected, chip U3's 23 pin ground connection, chip U3's 24 pin is connected with 3.3VD voltage, chip U3's 30 pin, 31 pin with shake monitoring circuit connection, chip U3's 35 pin ground connection, chip U3's 36 pin connects 3.3VD voltage, chip U3's 44 pin is connected with resistance R14, resistance R14's one end ground connection, chip U3's 47 pin ground connection, chip U3's 48 pin is connected with 3.3VD voltage.
6. The intelligent detector integrating vibration and gas monitoring as claimed in claim 5, wherein the gas detection circuit comprises a chip U4, the chip U4 comprises a chip U4A and a chip U4B, the types of the chip U4A and the chip U4B are LM358DR2G, the non-inverting input end of the chip U4A is connected with a capacitor C34, one end of the capacitor C34 is grounded, the non-inverting input end of the chip U4A is connected with the sensor, the inverting input end of the chip U4A is connected with the output end of the chip U4A, the positive power end of the chip U4A is connected with a capacitor C30, one end of the capacitor C30 is grounded, the positive power end of the chip U4A is connected with a ferrite bead FB1, and one end of the ferrite bead FB1 is connected with 5V voltage;
the negative power supply of the chip U4A is grounded;
the output end of the chip U4A is connected with a resistor R17, one end of the resistor R17 is connected with the non-inverting input end of the chip U4B, the output end of the chip U4A is connected with a capacitor C33, one end of the capacitor C33 is grounded, the non-inverting input end of the chip U4B is connected with a resistor R16, and one end of the resistor R16 is grounded;
the inverted input end of the chip U4B is connected with the output end of the chip U4B, the output end of the chip U4B is connected with a capacitor C31, one end of the capacitor C31 is grounded, and the output end of the chip U4B is connected with the 11 pin of the chip U3.
7. The intelligent detector integrating vibration and gas monitoring as claimed in claim 5, wherein the vibration monitoring circuit comprises a chip U5, the type of the chip U5 is ADXL345, a 1 pin of the chip U5 is connected with a capacitor C35, one end of the capacitor C35 is grounded, a 6 pin of the chip U5 is connected with a capacitor C36, one end of the capacitor C36 is grounded, the 1 pin of the chip U5 is connected with the 6 pin, the 1 pin of the chip U5 is connected with 3.3VD voltage, the 7 pin of the chip U5 is connected with a resistor R21, the 8 pin of the chip U5 is connected with the 10 pin of the chip U3, the 13 pin of the chip U5 is connected with a resistor R20, one end of the resistor R20 is connected with 3.3VD voltage, and the 13 pin of the chip U5 is connected with the 31 pin of the chip U3; the 14 pin of the chip U5 is connected with a resistor R18, one end of the resistor R18 is connected with 3.3VD voltage, and the 14 pin of the chip U5 is connected with the 30 pin of the chip U3; the 2 pins and the 12 pins of the chip U5 are grounded, the 4 pins of the chip U5 are connected with the 5 pins, and the 4 pins of the chip U5 are grounded.
8. The intelligent detector integrating vibration and gas monitoring as claimed in claim 1, wherein the battery is a lithium-ion battery pack (6).
9. The intelligent detector integrating vibration and gas monitoring as claimed in claim 1, wherein the main board (4) is provided with a face mask (3).
10. The intelligent detector integrating vibration and gas monitoring according to claim 1, wherein the sensor placement part comprises a sensor upper shell (8) and a sensor lower shell (12), the sensor upper shell (8) is arranged at the bottom of the bottom shell (7) through a hexagonal nut (5), the sensor lower shell (12) is arranged at the bottom of the sensor upper shell (8), an explosion-proof sheet (11) is arranged on the sensor lower shell (12), an explosion-proof sheet pressing ring (10) is arranged on the explosion-proof sheet (11), a sensor plate (9) is arranged on the explosion-proof sheet pressing ring (10), and the sensor is arranged on the sensor plate (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322599021.7U CN220796022U (en) | 2023-09-25 | 2023-09-25 | Intelligent detector integrating vibration and gas monitoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322599021.7U CN220796022U (en) | 2023-09-25 | 2023-09-25 | Intelligent detector integrating vibration and gas monitoring |
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| Publication Number | Publication Date |
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| CN220796022U true CN220796022U (en) | 2024-04-16 |
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| CN202322599021.7U Active CN220796022U (en) | 2023-09-25 | 2023-09-25 | Intelligent detector integrating vibration and gas monitoring |
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| CN (1) | CN220796022U (en) |
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2023
- 2023-09-25 CN CN202322599021.7U patent/CN220796022U/en active Active
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