CN109505657B - Mining amount of wind monitoring system - Google Patents
Mining amount of wind monitoring system Download PDFInfo
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- CN109505657B CN109505657B CN201811386858.0A CN201811386858A CN109505657B CN 109505657 B CN109505657 B CN 109505657B CN 201811386858 A CN201811386858 A CN 201811386858A CN 109505657 B CN109505657 B CN 109505657B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 46
- 238000005065 mining Methods 0.000 title claims abstract description 25
- 238000009423 ventilation Methods 0.000 claims abstract description 21
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 17
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- 101000701286 Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1) Alkanesulfonate monooxygenase Proteins 0.000 claims description 3
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- 238000010248 power generation Methods 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 4
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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Abstract
The invention discloses a mining air volume monitoring system, which comprises: the wind speed sensor comprises a laser ranging sensor, a wind speed sensor, a data acquisition circuit, a main controller, an alarm circuit, a display circuit, a ventilation system control circuit and a power supply, wherein the output end of the laser ranging sensor and the output end of the wind speed sensor are connected with the input end of the data acquisition circuit, the output end of the data acquisition circuit is connected with the input end of the main controller, the input end of the alarm circuit, the input end of the display circuit and the input end of the ventilation system control circuit are connected with the output end of the main controller, and the power supply supplies power for the whole system. The intelligent coal mine safety monitoring system is simple in circuit structure, less in wiring, high in intelligent degree and suitable for the field of coal mine safety.
Description
Technical Field
The invention belongs to the technical field of coal mine safety, and particularly relates to a mining air volume monitoring system.
Background
In the safety production of coal mines, one important work is to enhance underground ventilation so as to achieve the purposes of reducing the gas content and ensuring the safety production. The main assessment index of the underground ventilation is the underground ventilation quantity, so that the underground air quantity monitoring system is an essential and important part of a mine safety monitoring system. The existing air volume monitoring system is complex in circuit structure and multiple in underground wiring, most of ventilation control is still mainly completed by manual operation, and the working efficiency of the whole system is to be improved.
Disclosure of Invention
The invention overcomes the defects of the prior art, and solves the technical problems that: the mining air volume monitoring system is simple in circuit structure, less in wiring and higher in intelligent degree.
In order to solve the technical problems, the invention adopts the technical scheme that: a mining air volume monitoring system comprises: the system comprises a laser ranging sensor, an air speed sensor, a data acquisition circuit, a main controller, an alarm circuit, a display circuit, a ventilation system control circuit and a power supply; the output of laser range finding sensor with air velocity transducer's output equally divide do not with data acquisition circuit's input electrical connection, data acquisition circuit's output with main control unit's input electrical connection, warning circuit's input display circuit's input with ventilation system control circuit's input equally divide do not with main control unit's output electrical connection, power supply is the power supply of whole amount of wind monitoring system.
Preferably, the main controller includes: the integrated circuit chip of model STM32F107VCT6, the data acquisition circuit includes: a dual-channel operational amplifier U1 model AD 8622; the output end of the laser ranging sensor is connected with the input end of a connecting terminal JXZ1, the output end of the connecting terminal JXZ1 is connected with the first input positive end + INA of the dual-channel operational amplifier U1, and a resistor R1 and a capacitor C1 are respectively connected between the output end and the ground end of the connecting terminal JXZ1 in parallel; the first output end OUTA of the dual-channel operational amplifier U1 is connected to the input end PA0 of the integrated circuit chip and one end of a capacitor C3 through a resistor R3, respectively, the other end of the capacitor C3 is grounded, and the first output end OUTA of the dual-channel operational amplifier U1 is also connected to the first input negative end-INA thereof; the output end of the wind speed sensor is connected with the input end of a connecting terminal JXZ2, the output end of the connecting terminal JXZ2 is connected with the second input positive end + INB of the dual-channel operational amplifier U1, and a resistor R2 and a capacitor C2 are respectively connected between the output end of the connecting terminal JXZ2 and the ground end in parallel; the second output end OUTB of the dual-channel operational amplifier U1 is connected to the input end PA1 of the integrated circuit chip and one end of a capacitor C4 through a resistor R4, the other end of the capacitor C4 is grounded, and the second output end OUTB of the dual-channel operational amplifier U1 is also connected to the first input negative end-INB thereof; the power supply end of the connecting terminal JXZ1 and the power supply end of the connecting terminal JXZ2 are respectively connected with a +24V power supply, the positive electrode V + of the power supply of the dual-channel operational amplifier U1 is connected with a +5V power supply, and the negative electrode V-of the power supply of the dual-channel operational amplifier U1 is connected with a-5V power supply.
Preferably, the alarm circuit comprises: PNP type triode Q1, speaker BP1 and LED warning light JD 1; the output end PC6 of the integrated circuit chip is connected with the base electrode of the PNP type triode Q1 through a resistor R5; an emitter of the PNP triode Q1 is connected with a negative end of a power supply of the loudspeaker BP1, and a positive end of the power supply of the loudspeaker BP1 is connected with a power supply VCC; the base electrode of the PNP type triode Q1 is connected with the cathode of an LED warning lamp JD1 through a resistor R6, and the anode of the LED warning lamp JD1 is connected with a power supply VCC; the collector of the PNP type triode Q1 is grounded.
Preferably, a switch SW1 is connected in series between the output terminal PC6 of the integrated circuit chip and the resistor R5.
Preferably, the display circuit includes: a liquid crystal display U2 of the model LCD1602, a slide rheostat RW1 and a resistor exclusion RP 1; the positive power supply VDD of the liquid crystal display U2 is connected with a +5V power supply, the +5V power supply is further connected with one fixed end of the sliding rheostat RW1, the other fixed end of the sliding rheostat RW1 is grounded, and the moving end of the sliding rheostat RW1 is connected with the bias signal end VL of the liquid crystal display U2; the command/data terminal RS, the read/write terminal RW and the enable terminal EN of the liquid crystal display U2 are respectively and correspondingly connected with the data terminals PC10, PC11 and PC12 of the integrated circuit chip; data terminals D0, D1, D2, D3, D4, D5, D6 and D7 of the liquid crystal display U2 are respectively and correspondingly connected with data terminals PA8, PA9, PA10, PA11, PA12, PA13, PA14 and PA15 of the integrated circuit chip; the backlight anode BL + of the liquid crystal display U2 is connected with a +5V power supply through a resistor R7; and a power supply ground terminal VSS and a backlight cathode of the liquid crystal display U2 are both grounded.
Preferably, the mining air volume monitoring system further includes: the RS485 communication circuit is in bidirectional connection with the main controller; the RS485 communication circuit comprises an RS485 transceiver U3 with the model number of MAX485, an output end RO of the RS485 transceiver U3 and an input end DI of a driver are respectively connected with an input end PD6 and an output end PD5 of the integrated circuit chip, a receiving enabling end RE of the RS485 transceiver U3 is connected with an output end PD7 of the integrated circuit chip, a sending enabling end DE of the RS485 transceiver U3 is grounded through a resistor R8, and the receiving enabling end RE of the RS485 transceiver U3 is connected with the sending enabling end DE; the differential signal receiving end A and the differential signal transmitting end B of the RS485 transceiver U3 are respectively connected with a wiring terminal JXZ3, the differential signal receiving end A of the RS485 transceiver U3 is further connected with a jumper cap CON1, the differential signal transmitting end B of the RS485 transceiver U3 is connected with a jumper cap CON1 through a resistor R9, a power supply end of the RS485 transceiver U3 is connected with a +3.3V power supply, a power supply end of the RS485 transceiver U3 is grounded through a capacitor C5, and a ground end GND of the RS485 transceiver U3 is grounded.
Preferably, the mining air volume monitoring system further includes: the input end of the indicating circuit is electrically connected with the output end of the main controller; the indication circuit includes: light emitting diode D1 and light emitting diode D1; the output end PB8 of the integrated circuit chip is connected with the anode of the light emitting diode D1, the output end PB9 of the integrated circuit chip is connected with the anode of the light emitting diode D2, and the cathode of the light emitting diode D1 and the cathode of the light emitting diode D2 are both grounded.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, a laser distance measuring sensor is used for detecting air port section information of an air quantity monitoring point, an air speed sensor is used for detecting real-time air speed flowing through the air quantity monitoring point, the laser distance measuring sensor and the air speed sensor respectively send detection signals to a data acquisition circuit, the data acquisition circuit preprocesses the received signals and then sends the preprocessed signals to a main controller, the main controller converts the air port section area of the air quantity monitoring point according to the air port section information detected by the laser distance measuring sensor, then calculates an air outlet quantity value by combining the air port section area and an air speed value detected by the air speed sensor, and finally sends the calculated air quantity value to a display circuit for displaying, so that engineering technicians can know the air quantity of the air quantity monitoring point in; the main controller can also send a control signal to a control circuit of the ventilation system according to the calculated air volume value so as to increase or decrease the output air volume of the ventilation system and keep the ventilation volume under the mine in a proper range; meanwhile, the main controller compares the calculated air volume value with a preset reference air volume value, when the air volume value of the monitoring point is too high or too low, the main controller can send an alarm signal to an alarm circuit, the alarm circuit gives an alarm to remind engineering technicians to adjust the air volume in time, and the underground safety is maintained. The circuit of the invention has simple structure and less cumbersome underground wiring, can automatically acquire the area of the cross section of the air inlet and the air speed value, automatically convert the air outlet quantity value, alarm and control the ventilation system to adjust the air quantity according to the conversion result, does not need excessive manual intervention, and has higher intelligent degree and higher working efficiency.
2. The main controller mainly adopts an integrated circuit chip with the model number of STM32F107VCT6, the chip has strong operation, storage and control capabilities, and two analog-to-digital converters are integrated on the chip, so that the acquired analog signals are directly transmitted to the main controller after being filtered and amplified without adopting an additional A/D converter for analog-to-digital conversion, and the circuit structure is further simplified; in addition, the dual-channel rail-to-rail operational amplifier is adopted, detection signals of the laser ranging sensor and the wind speed sensor can be received and processed at the same time, one sensor does not need to correspond to one filtering and amplifying circuit, and wiring of an electric module is further reduced.
3. The air quantity monitoring system is also provided with an RS485 communication circuit, and the main controller can upload the air quantity monitoring result to the upper computer through the RS485 communication circuit so as to facilitate subsequent data analysis and processing. In addition, the invention also provides an indicating circuit which comprises two light-emitting diodes; when the monitored air volume value is too high, the main controller controls one light-emitting diode to emit light, and when the monitored air volume value is too low, the main controller controls the other light-emitting diode to emit light, so that engineering technicians can quickly and visually observe the air volume.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings;
fig. 1 is a schematic structural diagram of a mining air volume monitoring system according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a mining air volume monitoring system according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a mining air volume monitoring system according to a third embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of a data acquisition circuit provided in an embodiment of the present invention;
FIG. 5 is a circuit schematic of an alarm circuit provided in an embodiment of the present invention;
fig. 6 is a circuit schematic diagram of a display circuit provided in an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of an RS485 communication circuit provided in the embodiment of the present invention;
FIG. 8 is a circuit schematic of an indicating circuit provided in an embodiment of the present invention;
in the figure: 101 is a laser ranging sensor, 102 is an air velocity transducer, 103 is a data acquisition circuit, 104 is a main controller, 105 is an alarm circuit, 106 is a display circuit, 107 is a ventilation system control circuit, 108 is a power supply, 109 is an RS485 communication circuit, and 110 is an indication circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a mining air volume monitoring system according to a first embodiment of the present invention, and as shown in fig. 1, a mining air volume monitoring system may include: the wind speed sensor comprises a laser ranging sensor 101, a wind speed sensor 102, a data acquisition circuit 103, a main controller 104, an alarm circuit 105, a display circuit 106, a ventilation system control circuit 107 and a power supply 108.
The output end of the laser ranging sensor 101 and the output end of the wind speed sensor 102 are respectively electrically connected with the input end of the data acquisition circuit 103, the output end of the data acquisition circuit 103 is electrically connected with the input end of the main controller 104, the input end of the alarm circuit 105, the input end of the display circuit 106 and the input end of the ventilation system control circuit 107 are respectively electrically connected with the output end of the main controller 104, and the power supply 108 supplies power for the whole wind volume monitoring system.
According to the invention, a laser distance measuring sensor is used for detecting air port section information of an air quantity monitoring point, an air speed sensor is used for detecting real-time air speed flowing through the air quantity monitoring point, the laser distance measuring sensor and the air speed sensor respectively send detection signals to a data acquisition circuit, the data acquisition circuit preprocesses the received signals and then sends the preprocessed signals to a main controller, the main controller converts the air port section area of the air quantity monitoring point according to the air port section information detected by the laser distance measuring sensor, then calculates an air outlet quantity value by combining the air port section area and an air speed value detected by the air speed sensor, and finally sends the calculated air quantity value to a display circuit for displaying, so that engineering technicians can know the air quantity of the air quantity monitoring point in; the main controller can also send a control signal to a control circuit of the ventilation system according to the calculated air volume value so as to increase or decrease the output air volume of the ventilation system and keep the ventilation volume under the mine in a proper range; meanwhile, the main controller compares the calculated air volume value with a preset reference air volume value, when the air volume value of the monitoring point is too high or too low, the main controller can send an alarm signal to an alarm circuit, the alarm circuit gives an alarm to remind engineering technicians to adjust the air volume in time, and the underground safety is maintained. The circuit of the invention has simple structure and less cumbersome underground wiring, can automatically acquire the area of the cross section of the air inlet and the air speed value, automatically convert the air outlet quantity value, alarm and control the ventilation system to adjust the air quantity according to the conversion result, does not need excessive manual intervention, and has higher intelligent degree and higher working efficiency.
In specific implementation, the distance measuring sensor 101 may be fixed to one end of a transmission shaft through a fixing member such as a base, the other end of the transmission shaft may be connected to a rotation shaft of a driving motor through a connecting member such as a transmission belt, the transmission shaft may rotate along with the rotation shaft of the driving motor, and the driving motor may be a stepping motor or a servo motor.
Based on the installation mode of the distance measuring sensor 101, the method for acquiring the sectional area of the tuyere is as follows:
1. the laser ranging sensor 101 is conveyed to an air port of a point to be monitored of air quantity through a transmission shaft;
2. the driving motor is used for rotating the transmission shaft, so that the laser ranging sensor 101 can perform 360-degree rotation measurement on the section of the air port;
3. the laser distance measuring sensor 101 records the actual distance P from the measuring center point to the inner wall of the air port, and simultaneously records the rotating angle theta; the laser ranging sensor 101 rotates within 360 degrees at a plurality of angles, and the laser ranging sensor 101 measures once when rotating by one angle;
4. the main controller 104 calculates the actual sectional area of the air outlet according to the following formula:
∑Δ＝ΔP1P2θ1+ΔP2P3θ2+.....+ΔPn-2Pn-1θn-1+ΔPnP1θn。
the tuyere sectional area obtained by the method has the advantages of high accuracy, small error, high measuring speed, simple installation and disassembly of measuring equipment and capability of moving at any time according to the change of a monitoring point.
In specific implementation, after the main controller 104 obtains the sectional area of the tuyere, the cross-sectional area and the wind speed are calculated by a multiplier, and then the wind amount value is obtained.
Fig. 2 is a schematic structural view of a mining air volume monitoring system provided in a second embodiment of the present invention, and as shown in fig. 2, on the basis of the first embodiment, the mining air volume monitoring system may further include: and the RS485 communication circuit 109, and the RS485 communication circuit 109 is in bidirectional connection with the main controller 104.
Through the RS485 communication circuit 109, the main controller 104 can upload the air volume monitoring result to the upper computer, so as to facilitate subsequent data analysis and processing.
In specific implementation, the 3G/4G/GPRS module can be expanded through the RS485 interface to carry out wireless data transmission.
Fig. 3 is a schematic structural diagram of a mining air volume monitoring system according to a third embodiment of the present invention, as shown in fig. 3, on the basis of the first embodiment, the mining air volume monitoring system may further include: an indication circuit 110, an input of the indication circuit 110 being electrically connected to an output of the master controller 104.
Specifically, the indication circuit 110 may include: light emitting diode D1 and light emitting diode D1.
In the invention, the indicating circuit 110 comprises two light emitting diodes, when the monitored air volume value is too high, the main controller 104 controls one light emitting diode to emit light, and when the monitored air volume value is too low, the main controller 104 controls the other light emitting diode to emit light, so that engineering technicians can quickly and intuitively observe the air volume.
Fig. 4 is a schematic circuit diagram of a data acquisition circuit provided in an embodiment of the present invention, and as shown in fig. 4, the main controller 104 may include: an integrated circuit chip (not shown) of model STM32F107VCT6, the data acquisition circuit 103 may include: a dual channel operational amplifier U1 model AD 8622.
The output end of the laser ranging sensor 101 is connected with the input end of a connection terminal JXZ1, the output end of the connection terminal JXZ1 is connected with the first input positive end + INA of the dual-channel operational amplifier U1, and a resistor R1 and a capacitor C1 are respectively connected between the output end and the ground end of the connection terminal JXZ1 in parallel; the first output end OUTA of the dual-channel operational amplifier U1 is connected to one end of the input PA0 and one end of the capacitor C3 of the integrated circuit chip through a resistor R3, the other end of the capacitor C3 is grounded, and the first output end OUTA of the dual-channel operational amplifier U1 is also connected to the first input negative terminal-INA thereof.
The output end of the wind speed sensor 102 is connected with the input end of a connection terminal JXZ2, the output end of the connection terminal JXZ2 is connected with the second input positive end + INB of the dual-channel operational amplifier U1, and a resistor R2 and a capacitor C2 are respectively connected in parallel between the output end of the connection terminal JXZ2 and the ground end; the second output end OUTB of the dual-channel operational amplifier U1 is connected to one end of the input PA1 and one end of the capacitor C4 of the integrated circuit chip through a resistor R4, the other end of the capacitor C4 is grounded, and the second output end OUTB of the dual-channel operational amplifier U1 is also connected to the first input negative terminal-INB thereof.
The power supply end of the connecting terminal JXZ1 and the power supply end of the connecting terminal JXZ2 are respectively connected with a +24V power supply, the positive electrode V + of the power supply of the dual-channel operational amplifier U1 is connected with a +5V power supply, and the negative electrode V-of the power supply of the dual-channel operational amplifier U1 is connected with a-5V power supply.
The STM32F107VCT6 integrated circuit chip adopted by the main controller has strong operation, storage and control capabilities, and two analog-to-digital converters are integrated on the chip, so that the acquired analog signals are directly transmitted to the main controller after being filtered and amplified without adopting an additional A/D converter for analog-to-digital conversion, and the circuit structure is further simplified; in addition, the dual-channel rail-to-rail operational amplifier is adopted, detection signals of the laser ranging sensor and the wind speed sensor can be received and processed at the same time, one sensor does not need to correspond to one filtering and amplifying circuit, and wiring of an electric module is further reduced.
Fig. 5 is a schematic circuit diagram of an alarm circuit provided in an embodiment of the present invention, and as shown in fig. 5, the alarm circuit 105 may include: PNP type triode Q1, speaker BP1 and LED warning light JD 1.
The output end PC6 of the integrated circuit chip is connected with the base electrode of the PNP type triode Q1 through a resistor R5; an emitter of the PNP triode Q1 is connected with a negative end of a power supply of the loudspeaker BP1, and a positive end of the power supply of the loudspeaker BP1 is connected with a power supply VCC; the base electrode of the PNP type triode Q1 is connected with the cathode of an LED warning lamp JD1 through a resistor R6, and the anode of the LED warning lamp JD1 is connected with a power supply VCC; the collector of the PNP type triode Q1 is grounded.
In practical application, the main controller 104 controls the conduction of the PNP triode Q1 by outputting a high-low level to the base of the PNP triode Q1, when the PNP triode Q1 is conducted, the speaker BP1 and the LED warning lamp JD1 are powered on to emit sound and light, and when the PNP triode Q1 is cut off, the speaker BP1 and the LED warning lamp JD1 are powered off to stop audible and visual alarm.
Further, a switch SW1 is connected in series between the output terminal PC6 of the integrated circuit chip and the resistor R5.
The switch SW1 can be used to turn off the alarm circuit 105 manually according to actual requirements.
Fig. 6 is a schematic circuit diagram of a display circuit provided in an embodiment of the present invention, and as shown in fig. 6, the display circuit 106 includes: liquid crystal display U2, model LCD1602, sliding rheostat RW1 and resistor exclusion RP 1.
The positive power supply VDD of the liquid crystal display U2 is connected with a +5V power supply, the +5V power supply is further connected with one fixed end of the sliding rheostat RW1, the other fixed end of the sliding rheostat RW1 is grounded, and the moving end of the sliding rheostat RW1 is connected with the bias signal end VL of the liquid crystal display U2; the command/data terminal RS, the read/write terminal RW and the enable terminal EN of the liquid crystal display U2 are respectively and correspondingly connected with the data terminals PC10, PC11 and PC12 of the integrated circuit chip; data terminals D0, D1, D2, D3, D4, D5, D6 and D7 of the liquid crystal display U2 are respectively and correspondingly connected with data terminals PA8, PA9, PA10, PA11, PA12, PA13, PA14 and PA15 of the integrated circuit chip; the backlight anode BL + of the liquid crystal display U2 is connected with a +5V power supply through a resistor R7; and a power supply ground terminal VSS and a backlight cathode of the liquid crystal display U2 are both grounded.
Fig. 7 is a schematic circuit diagram of an RS485 communication circuit provided in an embodiment of the present invention, and as shown in fig. 7, the RS485 communication circuit 109 may include an RS485 transceiver U3 with a model of MAX485, an output end RO of the RS485 transceiver U3 and an input end DI of a driver are respectively connected to an input end PD6 and an output end PD5 of the integrated circuit chip, a receive enable end RE of the RS485 transceiver U3 is connected to an output end PD7 of the integrated circuit chip, a transmit enable end DE of the RS485 transceiver U3 is grounded through a resistor R8, and the receive enable end RE of the RS485 transceiver U3 is connected to the transmit enable end DE; the differential signal receiving end A and the differential signal transmitting end B of the RS485 transceiver U3 are respectively connected with a wiring terminal JXZ3, the differential signal receiving end A of the RS485 transceiver U3 is further connected with a jumper cap CON1, the differential signal transmitting end B of the RS485 transceiver U3 is connected with a jumper cap CON1 through a resistor R9, a power supply end of the RS485 transceiver U3 is connected with a +3.3V power supply, a power supply end of the RS485 transceiver U3 is grounded through a capacitor C5, and a ground end GND of the RS485 transceiver U3 is grounded.
Fig. 8 is a schematic circuit diagram of the indicating circuit provided in the embodiment of the present invention, and as shown in fig. 8, the output terminal PB8 of the integrated circuit chip is connected to the anode of the light emitting diode D1, the output terminal PB9 of the integrated circuit chip is connected to the anode of the light emitting diode D2, and the cathodes of the light emitting diode D1 and the light emitting diode D2 are both grounded.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection or electrical connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "embodiment X" or the like are intended to mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the method, apparatus and system described above are referred to one another. In addition, "one", "two", and the like in the above embodiments are used to distinguish the embodiments, and do not represent the merits of the embodiments.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the circuit described above may refer to the corresponding processes in the foregoing embodiments, and are not described herein again.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a device will be apparent from the description above. In addition, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the embodiments provided in the present application, it should be understood that the disclosed system may be implemented in other ways. The above-described system embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and other divisions may be realized in practice, and for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The utility model provides a mining amount of wind monitoring system which characterized in that: the method comprises the following steps: the wind power generation system comprises a laser ranging sensor (101), a wind speed sensor (102), a data acquisition circuit (103), a main controller (104), an alarm circuit (105), a display circuit (106), a ventilation system control circuit (107) and a power supply (108);
the output end of the laser ranging sensor (101) and the output end of the wind speed sensor (102) are respectively and electrically connected with the input end of the data acquisition circuit (103), the output end of the data acquisition circuit (103) is electrically connected with the input end of the main controller (104), the input end of the alarm circuit (105), the input end of the display circuit (106) and the input end of the ventilation system control circuit (107) are respectively and electrically connected with the output end of the main controller (104), and the power supply (108) supplies power to the whole wind volume monitoring system;
the master controller (104) comprises: an integrated circuit chip of model STM32F107VCT6, the data acquisition circuit (103) comprising: a dual-channel operational amplifier U1 model AD 8622;
the output end of the laser ranging sensor (101) is connected with the input end of a connecting terminal JXZ1, the output end of the connecting terminal JXZ1 is connected with the first input positive terminal + INA of the dual-channel operational amplifier U1, and a resistor R1 and a capacitor C1 are respectively connected between the output end of the connecting terminal JXZ1 and the ground end in parallel; the first output end OUTA of the dual-channel operational amplifier U1 is connected to the input end PA0 of the integrated circuit chip and one end of a capacitor C3 through a resistor R3, respectively, the other end of the capacitor C3 is grounded, and the first output end OUTA of the dual-channel operational amplifier U1 is also connected to the first input negative end-INA thereof;
the output end of the wind speed sensor (102) is connected with the input end of a connecting terminal JXZ2, the output end of the connecting terminal JXZ2 is connected with the second input positive terminal + INB of the dual-channel operational amplifier U1, and a resistor R2 and a capacitor C2 are respectively connected between the output end of the connecting terminal JXZ2 and the ground end in parallel; the second output end OUTB of the dual-channel operational amplifier U1 is connected to the input end PA1 of the integrated circuit chip and one end of a capacitor C4 through a resistor R4, the other end of the capacitor C4 is grounded, and the second output end OUTB of the dual-channel operational amplifier U1 is also connected to the first input negative end-INB thereof;
the power supply end of the connecting terminal JXZ1 and the power supply end of the connecting terminal JXZ2 are respectively connected with a +24V power supply, the positive electrode V + of the power supply of the dual-channel operational amplifier U1 is connected with a +5V power supply, and the negative electrode V-of the power supply of the dual-channel operational amplifier U1 is connected with a-5V power supply.
2. The mining air volume monitoring system according to claim 1, characterized in that: the alarm circuit (105) comprises: PNP type triode Q1, speaker BP1 and LED warning light JD 1;
the output end PC6 of the integrated circuit chip is connected with the base electrode of the PNP type triode Q1 through a resistor R5; an emitter of the PNP triode Q1 is connected with a negative end of a power supply of the loudspeaker BP1, and a positive end of the power supply of the loudspeaker BP1 is connected with a power supply VCC; the base electrode of the PNP type triode Q1 is connected with the cathode of an LED warning lamp JD1 through a resistor R6, and the anode of the LED warning lamp JD1 is connected with a power supply VCC; the collector of the PNP type triode Q1 is grounded.
3. The mining air volume monitoring system according to claim 2, characterized in that: a switch SW1 is connected in series between the output terminal PC6 of the integrated circuit chip and the resistor R5.
4. The mining air volume monitoring system according to claim 1, characterized in that: the display circuit (106) comprises: a liquid crystal display U2 of the model LCD1602, a slide rheostat RW1 and a resistor exclusion RP 1;
the positive power supply VDD of the liquid crystal display U2 is connected with a +5V power supply, the +5V power supply is further connected with one fixed end of the sliding rheostat RW1, the other fixed end of the sliding rheostat RW1 is grounded, and the moving end of the sliding rheostat RW1 is connected with the bias signal end VL of the liquid crystal display U2; the command/data terminal RS, the read/write terminal RW and the enable terminal EN of the liquid crystal display U2 are respectively and correspondingly connected with the data terminals PC10, PC11 and PC12 of the integrated circuit chip; data terminals D0, D1, D2, D3, D4, D5, D6 and D7 of the liquid crystal display U2 are respectively and correspondingly connected with data terminals PA8, PA9, PA10, PA11, PA12, PA13, PA14 and PA15 of the integrated circuit chip; the backlight anode BL + of the liquid crystal display U2 is connected with a +5V power supply through a resistor R7; and a power supply ground terminal VSS and a backlight cathode of the liquid crystal display U2 are both grounded.
5. The mining air volume monitoring system according to claim 1, characterized in that: the mining air volume monitoring system further comprises: the RS485 communication circuit (109), the RS485 communication circuit (109) is connected with the master controller (104) in a bidirectional way;
the RS485 communication circuit (109) comprises an RS485 transceiver U3 with the model of MAX485, an output end RO of the RS485 transceiver U3 and an input end DI of a driver are respectively connected with an input end PD6 and an output end PD5 of the integrated circuit chip, a receiving enabling end RE of the RS485 transceiver U3 is connected with an output end PD7 of the integrated circuit chip, a sending enabling end DE of the RS485 transceiver U3 is grounded through a resistor R8, and the receiving enabling end RE of the RS485 transceiver U3 is connected with the sending enabling end DE; the differential signal receiving end A and the differential signal transmitting end B of the RS485 transceiver U3 are respectively connected with a wiring terminal JXZ3, the differential signal receiving end A of the RS485 transceiver U3 is further connected with a jumper cap CON1, the differential signal transmitting end B of the RS485 transceiver U3 is connected with a jumper cap CON1 through a resistor R9, a power supply end of the RS485 transceiver U3 is connected with a +3.3V power supply, a power supply end of the RS485 transceiver U3 is grounded through a capacitor C5, and a ground end GND of the RS485 transceiver U3 is grounded.
6. The mining air volume monitoring system according to claim 1, characterized in that: the mining air volume monitoring system further comprises: an indication circuit (110), an input of the indication circuit (110) being electrically connected to an output of the master controller (104);
the indication circuit (110) comprises: light emitting diode D1 and light emitting diode D1;
the output end PB8 of the integrated circuit chip is connected with the anode of the light emitting diode D1, the output end PB9 of the integrated circuit chip is connected with the anode of the light emitting diode D2, and the cathode of the light emitting diode D1 and the cathode of the light emitting diode D2 are both grounded.
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| CN201811386858.0A CN109505657B (en) | 2018-11-20 | 2018-11-20 | Mining amount of wind monitoring system |
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| CN201811386858.0A CN109505657B (en) | 2018-11-20 | 2018-11-20 | Mining amount of wind monitoring system |
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| CN110751872B (en) * | 2019-11-06 | 2021-06-04 | 应急管理部天津消防研究所 | Large-space full-size fire scene simulation experiment control system and method thereof |
| CN111750508B (en) * | 2020-07-30 | 2021-05-14 | 海润新风（重庆）智能技术有限公司 | Working method of ventilator |
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| WO2013084870A1 (en) * | 2011-12-06 | 2013-06-13 | 新日鐵住金株式会社 | Method and device for determining rotational speed of cooling furnace blower |
| CN202628154U (en) * | 2012-05-29 | 2012-12-26 | 孟志强 | Coal mine ventilation intelligent management system |
| CN103835745A (en) * | 2012-11-23 | 2014-06-04 | 西安众智惠泽光电科技有限公司 | Air supply parameter self-adjustment system based on real-time monitoring of tunneling schedule of tunnel face |
| CN204212810U (en) * | 2014-11-13 | 2015-03-18 | 阳泉八方电气有限公司 | Mining sound and light alarm controller |
| CN105004374B (en) * | 2015-07-21 | 2018-07-24 | 河南理工大学 | Mine laneway wind detection method |
| CN105179015A (en) * | 2015-09-18 | 2015-12-23 | 湖南汇亚矿山电子科技有限公司 | Integrated management system for mining safety monitoring and controlling |
| WO2018157275A1 (en) * | 2017-02-28 | 2018-09-07 | 深圳市前海中康汇融信息技术有限公司 | Window cleaning robot having an air volume measurement function and operation method therefor |
| CN206581985U (en) * | 2017-03-09 | 2017-10-24 | 中国矿业大学(北京) | Underground coal mine sensor locating alarm device |
| CN207813654U (en) * | 2017-12-01 | 2018-09-04 | 中国矿业大学(北京) | Based on ranging and the coal working face calamity forecast system to test the speed |
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