CN213574223U - Mining intrinsic safety type measuring device - Google Patents
Mining intrinsic safety type measuring device Download PDFInfo
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- CN213574223U CN213574223U CN202020988458.3U CN202020988458U CN213574223U CN 213574223 U CN213574223 U CN 213574223U CN 202020988458 U CN202020988458 U CN 202020988458U CN 213574223 U CN213574223 U CN 213574223U
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Abstract
The utility model discloses a mining ann's type measuring device, include: the mine intrinsic safety type sensor monitoring system comprises a plurality of mine intrinsic safety type sensors, a transmission circuit connected with each mine intrinsic safety type sensor, a display unit and a main control unit which is respectively connected with the transmission circuit and the display unit and used for controlling the display unit to display output data of each mine intrinsic safety type sensor. By arranging the plurality of mining intrinsic safety type sensors and configuring the main control unit capable of displaying the output data of each mining intrinsic safety type sensor, the mining intrinsic safety type measuring device realizes multi-parameter monitoring of a coal mine in the construction and mining processes, reduces the number of instruments in the underground site of the coal mine, and facilitates monitoring and management.
Description
Technical Field
The utility model relates to a safety monitoring technical field, in particular to mining ann's type measuring device.
Background
In the process of construction or mining of a coal mine, two high-risk phenomena exist: rock burst and roof fall.
When the local geological structure of a coal mine is damaged, the ground stress in a rock stratum and a coal bed can be changed on a roadway or a working face, energy is mutually extruded and accumulated, and when the ultimate strength is reached, the elastic deformation energy can be suddenly, rapidly and violently released, so that the coal stratum is instantaneously damaged and is accompanied by the impact of pulverized coal and rock, and the phenomena of roadway damage and personal casualty accidents, namely, rock burst, are caused. The mining intrinsic safety type surrounding rock stress sensor can be used for qualitatively monitoring the change trend of ground stress and is an effective technical means for early warning and prevention of rock burst.
The roof fall phenomenon refers to the phenomenon that in the underground mining process of a coal mine, the original balanced mine pressure is damaged, and a roof rock stratum and a coal bed on the upper part of a roadway or a goaf naturally collapse. The roof fall phenomenon is a roof accident which often occurs in the production process of a mine excavation working face, and the life and property safety of miners is seriously threatened. At present, aiming at roof collapse, technical means of reinforcing roof stability such as anchor rods (cables), anchor nets and hydraulic supports (columns) are generally adopted in coal mines, and roof collapse can be effectively delayed. The mining intrinsic safety type roof separation instrument, the anchor rod (cable) tension sensor and the hydraulic support (column) pressure sensor can be used for monitoring roof dynamics quantitatively or qualitatively, and guiding the planned upper coal seam dropping and the increase of the support strength again in the coal mining work.
Therefore, in order to ensure the safety of the coal mine in the construction and mining processes, various types of sensors need to be arranged on the site. The existing monitoring instrument only has a single parameter monitoring function, so that the underground site of the coal mine has numerous instruments and is complex to manage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mining ann's type measuring device for the realization reduces the instrument quantity in colliery scene in the pit, convenient monitoring and management to the colliery at the many parameters monitoring of construction and exploitation process.
In order to solve the technical problem, the utility model provides a mining ann's type measuring device, include: the mining intrinsic safety type sensor display device comprises a plurality of mining intrinsic safety type sensors, a transmission circuit connected with each mining intrinsic safety type sensor, a display unit and a main control unit which is respectively connected with the transmission circuit and the display unit and used for controlling the display unit to display output data of each mining intrinsic safety type sensor.
Optionally, the number of the mining intrinsic safety type sensors is specifically 3.
Optionally, the mining intrinsic safety type sensor specifically includes a surrounding rock stress sensor, an anchor rod (cable) force measuring sensor and a roof separation instrument.
Optionally, the transmission circuit is specifically an RS485 bus.
Optionally, the system further comprises a power switch arranged between the RS485 bus and the mining intrinsic safety type sensor, and the power switch corresponds to the mining intrinsic safety type sensor one to one.
Optionally, the mining intrinsic safety type sensor further comprises a connector arranged between the power switch and the mining intrinsic safety type sensor;
the connector with switch one-to-one, just the connector with mining ann's type sensor can dismantle the connection.
Optionally, the system further comprises an alarm unit connected with the main control unit.
Optionally, the alarm unit is specifically an audible and visual alarm unit.
Optionally, the system further comprises a wireless remote controller receiving unit connected with the main control unit.
Optionally, the system further comprises a rechargeable battery unit connected with the main control unit.
The utility model provides a mining ann's type measuring device, include: the mine intrinsic safety type sensor monitoring system comprises a plurality of mine intrinsic safety type sensors, a transmission circuit connected with each mine intrinsic safety type sensor, a display unit and a main control unit which is respectively connected with the transmission circuit and the display unit and used for controlling the display unit to display output data of each mine intrinsic safety type sensor. By arranging the plurality of mining intrinsic safety type sensors and configuring the main control unit capable of displaying the output data of each mining intrinsic safety type sensor, the mining intrinsic safety type measuring device realizes multi-parameter monitoring of a coal mine in the construction and mining processes, reduces the number of instruments in the underground site of the coal mine, and facilitates monitoring and management.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained from the drawings without inventive work.
Fig. 1 is a schematic structural diagram of a mining intrinsic safety type measuring device provided in an embodiment of the present invention;
fig. 2 is a circuit diagram of a main control unit according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a display unit according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a 485 bus unit according to an embodiment of the present invention;
fig. 5 is a circuit diagram of an alarm unit according to an embodiment of the present invention;
fig. 6 is a circuit diagram of a wireless remote control receiving unit according to an embodiment of the present invention;
fig. 7 is a circuit diagram of a light control unit according to an embodiment of the present invention;
fig. 8 is a circuit diagram of a wireless communication unit according to an embodiment of the present invention;
fig. 9 is a circuit diagram of a rechargeable battery unit according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another mining intrinsic safety type measuring device according to an embodiment of the present invention;
fig. 11 is a circuit diagram of a power switch according to an embodiment of the present invention;
fig. 12 is a circuit diagram of a connector according to an embodiment of the present invention;
the system comprises a main control unit 101, a display unit 102, a transmission circuit 103, a mine intrinsic safety type sensor 104, an alarm unit 105, a wireless remote controller receiving unit 106, a light control unit 107, a wireless communication unit 108, a rechargeable battery unit 109, a power switch 110 and a connector 111.
Detailed Description
The core of the utility model is to provide a mining ann's type measuring device for the realization reduces the instrument quantity in the pit of colliery to the colliery in the many parameters monitoring of construction and exploitation process, convenient monitoring and management.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a mining intrinsic safety type measuring device provided in an embodiment of the present invention; fig. 2 is a circuit diagram of a main control unit according to an embodiment of the present invention; fig. 3 is a circuit diagram of a display unit according to an embodiment of the present invention; fig. 4 is a circuit diagram of a 485 bus unit according to an embodiment of the present invention; fig. 5 is a circuit diagram of an alarm unit according to an embodiment of the present invention; fig. 6 is a circuit diagram of a wireless remote control receiving unit according to an embodiment of the present invention; fig. 7 is a circuit diagram of a light control unit according to an embodiment of the present invention; fig. 8 is a circuit diagram of a wireless communication unit according to an embodiment of the present invention; fig. 9 is a circuit diagram of a rechargeable battery unit according to an embodiment of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a mining ann's type measuring device includes: the mine intrinsic safety type sensor monitoring system comprises a plurality of mine intrinsic safety type sensors 104, a transmission circuit 103 connected with each mine intrinsic safety type sensor 104, a display unit 102 and a main control unit 101 which is respectively connected with the transmission circuit 103 and the display unit 102 and used for controlling the display unit 102 to display output data of each mine intrinsic safety type sensor 104.
In particular implementations, the type and number of mine intrinsically safe sensors 104 can be specifically designed according to the installation site environment. Optionally, the number of the mining intrinsic safety type sensors 104 is set to 3.
The mining intrinsic safety type sensor 104 specifically comprises a surrounding rock stress sensor, an anchor rod (cable) force measuring sensor and a roof separation instrument. In addition, a hydraulic mount (column) pressure sensor or the like may be included.
The main control unit 101 may be constructed by using a C8051F340 device as a microprocessor MCU. As shown in fig. 2, the RST/C2CK and C2D pins of the C8051F340 device U2 are connected with a reset circuit composed of J1 and other elements; a P1.5(VREF) pin of a U2 device of the C8051F340 is connected with a reference voltage input end VREF; the pins P3.2, P3.1 and P3.0 of the device U2 of C8051F340 are connected with a dial switch S2 (SW DIP-3 is selected). The main control unit 101 is loaded with a protocol and a data analysis script of the mining intrinsic safety sensor 104, after receiving output data of the mining intrinsic safety sensor 104, the main control unit 101 analyzes the protocol to obtain the protocol of the mining intrinsic safety sensor 104, calls a monitoring script corresponding to the mining intrinsic safety sensor 104, compares measurement parameters output by the mining intrinsic safety sensor 104 with a threshold value, and facilitates monitoring state display and abnormal parameter alarm.
The display unit 102 can be constructed by a three-bit 8-digit seven-segment nixie tube LED5631AH device and an eight-way output transparent latch 74HC573D device, as shown in fig. 3, two LED5631AH devices D2 and D6 can be arranged to display two groups of digits, nixies of the LED5631AH device D2 and the LED5631AH device D6 are controlled by output pins (Q1-Q7 pins) of a 74HC573D device U1, digit gating switches of the LED5631AH device D2 are controlled by three triodes (selectable 9013) T9, T10 and T11, and digit gating switches of the LED5631AH device D6 are controlled by three triodes (selectable 9013) T2, T3 and T4; the input terminals (D1-D8 pins) of the 74HC573D device U1 are connected with the display control output terminals (P2.7-P2.0 pins) of the C8051F340 device U2 shown in FIG. 2 in turn.
In the prior art, a main control unit 101 of a mining intrinsic safety type measuring instrument and a single-parameter mining intrinsic safety type sensor 104 are generally connected by adopting an analog circuit, and signals of the analog circuit are unstable and are easy to interfere in a field environment. Therefore, in the embodiment of the present invention, the transmission circuit 103 between the main control unit 101 and the mining intrinsically safe sensor 104 is a digital circuit.
Furthermore, because the mining intrinsic safety type measuring device provided by the embodiment of the present invention is a multi-parameter measuring device, in order to simplify the circuit and facilitate maintenance, the transmission circuit 103 preferably adopts an RS485 bus, and its detailed circuit is shown in fig. 4, the RS485 bus and its control circuit are composed of a 4-bit non-inverting bus transceiver CD74HC243M96 device U5 and a 3.3V low power consumption half-duplex transceiver SP3485EN-L/TR device U6, wherein, an RX _485 pin of a CD74HC243M96 device U5 is connected with a TX _485 pin of an SP3485EN-L/TR device U6, a TX _485 pin of a CD74HC243M96 device U5 is connected with an RX _485 pin of an SP34 EN-L/TR device U6, one RX _ 1 and TX 8 pins of a CD74HC243M 5859629 device U5859629 are respectively connected with RX1 and 1 pins of a C8051F 2 shown in fig. 2; the 6 and 7 pins of the SP3485EN-L/TR device U6 are connected to the 485A and 485B pins for connecting the mining intrinsically safe sensor 104.
Further, as shown in fig. 1, the mining intrinsic safety type measuring device provided by the embodiment of the present invention may further include an alarm unit 105 connected with the main control unit 101. The main control unit 101 may also be configured to control the alarm unit 105 to give an alarm when the output data of the mining intrinsic safety sensor 104 obtained through analysis is in an abnormal range.
The alarm unit 105 may specifically adopt an audible and visual alarm unit 105. As shown in fig. 5, the acoustic alarm portion of the alarm unit 105 is constituted by a buzzer LS1, the input (BELL pin) of which is connected to the BELL pin of the C8051F340 device U2 shown in fig. 2. The light alarm part of the alarm unit 105 can be composed of two indicator lights, wherein the indicator light D7 indicates that the parameter of the mining intrinsic safety type sensor 104 is normal, and the indicator light D4 indicates that the parameter of the mining intrinsic safety type sensor 104 is abnormal; the cathode (RIGHT LED pin) of the indicator light D7 is connected with the RIGHT LED pin of the C8051F340 device U2 shown in fig. 2, and the cathode (ALARM LED pin) of the indicator light D4 is connected with the ALARM LED pin of the C8051F340 device U2 shown in fig. 2; the indicator light D7 can be white LED light or green LED light, and the indicator light D4 can be yellow LED light or red LED light.
In order to save power, the display unit 102 may be designed to be triggered and then lighted up, and specifically, the display unit 102 may be controlled to display the current monitoring data after the main control unit 101 receives an external trigger signal. As shown in fig. 1, the mining intrinsically safe measurement apparatus provided in an embodiment of the present invention may further include a wireless remote control receiving unit 106 connected to the main control unit 101. The main control unit 101 may also be configured to control the display unit 102 to display the processed data after the wireless remote controller receiving unit 106 receives the target signal.
As shown in fig. 6, the wireless remote controller receiving unit 106 is composed of an infrared receiving head (optionally, a TSOP38238 device) component, and an RX INF pin of the TSOP38238 device H1 is connected to a base (TX INF pin) of a transistor T5 (optionally, 9012) of a circuit in which the infrared light emitting diode LTE-5208A device D1 is located. After receiving an infrared signal from an infrared remote controller, the TSOP38238 device H1 turns on the transistor T5 through an RX INF pin, lights up the LTE-5208A device D1, sends a signal to the P0.0 pin of the C8051F340 device U2 shown in fig. 2 through the transistor T1 (9013 is selected), and controls the display unit 102 to display data through the C8051F340 device U2.
In addition, as shown in fig. 1, the embodiment of the present invention provides a mining intrinsic safety type measuring device, which may further include a light control unit 107 connected to the main control unit 101, where the main control unit 101 is further configured to perform an operation (e.g., control the display unit 102 to light up) after the light control unit 107 detects that the ambient light intensity reaches the threshold value.
As shown in fig. 7, the light control unit 107 may be constructed by a power comparator (selected from MAX9021AUK-T device) and a phototransistor (selected from ST-1KLA device). The emitter of the ST-1KLA device L1 is grounded, the collector of the ST-1KLA device L1 is connected with an IN + pin of a MAX9021AUK-T device U3, an OUT pin of the MAX9021AUK-T device U3 is connected with a P0.3 pin of a C8051F340 device U2 shown IN fig. 2, the ST-1KLA device L1 converts a received visible light signal into an electric signal, and the MAX9021AUK-T device U3 sends the signal to the C8051F340 device U2 when detecting that the visible light signal reaches a threshold value according to the electric signal.
In order to reduce wiring, the mining intrinsic safety type measuring device is convenient to communicate with a monitoring substation, as shown in fig. 1, the mining intrinsic safety type measuring device provided by the embodiment of the present invention may further include a wireless communication unit 108 connected with the main control unit 101; the main control unit 101 is further configured to send output data of the mining intrinsically safe sensor 104 to a specified address through the wireless communication unit 108.
As shown in FIG. 8, the wireless communication unit 108 may be constructed by a VT-CC1110PA-470M device M1. RX and TX pins of a VT-CC1110PA-470M device M1 are respectively connected with P0.5 and P0.4 pins of a C8051F340 device U2 shown in FIG. 2, an SET pin of the VT-CC1110PA-470M device M1 is connected with a P4.5 pin of a C8051F340 device U2, and the connecting ends of a resistor R11 and a resistor R41 are connected with a P0.6 pin of the C8051F340 device U2 to form a pull-up driving circuit; the LED pin of the VT-CC1110PA-470M device M1 is connected to the cathode (RF _ LED) of the indicator light D5 (red LED may be selected), and controls the indicator light D5 to light up when the wireless communication unit 108 transmits data.
The existing mining intrinsic safety type measuring instrument mostly adopts non-rechargeable disposable dry batteries, the batteries are not recycled in time, resources can be wasted, the batteries are randomly discarded, and the environment can be seriously polluted. Therefore, as shown in fig. 1, the mining intrinsic safety type measuring device provided by the embodiment of the present invention may further include a rechargeable battery unit 109 connected with the main control unit 101.
As shown in fig. 9, a rechargeable battery unit 109 can be constructed by using a 3.2V rechargeable battery BT1 to output a dc power supply VDD.
The embodiment of the utility model provides a mining ann's type measuring device, include: the mine intrinsic safety type sensor monitoring system comprises a plurality of mine intrinsic safety type sensors, a transmission circuit connected with each mine intrinsic safety type sensor, a display unit and a main control unit which is respectively connected with the transmission circuit and the display unit and used for controlling the display unit to display output data of each mine intrinsic safety type sensor. By arranging the plurality of mining intrinsic safety type sensors and configuring the main control unit capable of displaying the output data of each mining intrinsic safety type sensor, the mining intrinsic safety type measuring device realizes multi-parameter monitoring of a coal mine in the construction and mining processes, reduces the number of instruments in the underground site of the coal mine, and facilitates monitoring and management.
Fig. 10 is a schematic structural diagram of another mining intrinsic safety type measuring device according to an embodiment of the present invention; fig. 11 is a circuit diagram of a power switch according to an embodiment of the present invention; fig. 12 is a circuit diagram of a connector according to an embodiment of the present invention.
The mining intrinsic safety type measuring device provided by the above embodiment may be connected to a plurality of mining intrinsic safety type sensors 104, and in practical applications, the mining intrinsic safety type sensors 104 may need to be replaced or faulty mining intrinsic safety type sensors 104 may need to be replaced according to different monitoring occasions, which relates to the configuration problem of the communication address of the mining intrinsic safety type sensors 104. For the configuration flow of making things convenient for mining ann's type sensor 104 communication address, as shown in fig. 10 the embodiment of the utility model provides a mining ann's type measuring device is still including locating switch 110 between RS485 bus and mining ann's type sensor 104, switch 110 and mining ann's type sensor 104 one-to-one.
If adopt RS485 bus communication connection between mining ann's type sensor 104 and the main control unit 101, then need carry out the software address configuration to every mining ann's type sensor 104, it is comparatively inconvenient when changing mining ann's type sensor 104, consequently the embodiment of the utility model discloses confirm the hardware address through switch 110, then need not to carry out the software addressing to new mining ann's type sensor 104 when changing mining ann's type sensor 104.
As shown in fig. 11, the power switch 110 circuit is designed to correspond to three mining intrinsic safety type sensors 104, and three power switches Q1, Q2 and Q3 are all built by using linear voltage regulator TPS76933 devices, wherein an EN pin of a TPS76933 device Q1 is connected with a P3.7(PWR3) pin of a C8051F340 device U2 shown in fig. 2, an EN pin of a TPS76933 device Q2 is connected with a P3.6(PWR4) pin of a C8051F340 device U2, and an EN pin of a TPS76933 device Q3 is connected with a P3.5(PWR5) pin of a C8051F340 device U2. The C8051F340 device U2 gates the corresponding mining intrinsically safe sensor 104 by gating at least one of PWR3, PWR4, and PWR 5.
In order to facilitate replacement of the mining intrinsic safety type sensor 104, as shown in fig. 10, the mining intrinsic safety type measuring device provided in the embodiment of the present invention further includes a connector 111 disposed between the power switch 110 and the mining intrinsic safety type sensor 104;
the connectors 111 correspond to the power switches 110 one to one, and the connectors 111 are detachably connected to the mining intrinsic safety type sensor 104.
As shown in fig. 12, three 4-pad Header 4 chips (P1, P2, P3) are designed to be connected to three mining intrinsic safety type sensors 104, respectively, and the 485A pin and the 485B pin of each Header 4 chip are connected to the 485A pin and the 485B pin in fig. 4, respectively. The V _ CH1 pin of the Header 4 chip P1 is connected with the V _ CH1 pin in FIG. 11; the V _ CH2 pin of the Header 4 chip P2 is connected with the V _ CH2 pin in FIG. 11; the V _ CH3 pin of the Header 4 chip P3 is connected with the V _ CH3 pin in FIG. 11.
It is right above the utility model provides a mining ann's type measuring device has carried out detailed introduction. The embodiments are described in a progressive mode in the specification, the emphasis of each embodiment is different from that of other embodiments, and the same and similar parts among the embodiments are referred to each other.
It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. A mining intrinsic safety type measuring device is characterized by comprising: the mining intrinsic safety type sensor monitoring system comprises a plurality of mining intrinsic safety type sensors, a transmission circuit connected with each mining intrinsic safety type sensor, a display unit, a light control unit and a main control unit, wherein the main control unit is respectively connected with the transmission circuit, the display unit and the light control unit and is used for controlling the display unit to display output data of each mining intrinsic safety type sensor after the light control unit detects that ambient light reaches a threshold value;
the mining intrinsic safety type sensor specifically comprises a surrounding rock stress sensor, an anchor rod force measuring sensor, an anchor cable force measuring sensor and a roof separation instrument.
2. The mining intrinsically safe type measuring device of claim 1, wherein the number of mining intrinsically safe type sensors is in particular 3.
3. The mining intrinsically safe type measuring device of claim 1, wherein the transmission circuit is specifically an RS485 bus.
4. The mining intrinsic safety type measuring device according to claim 3, further comprising a power switch arranged between the RS485 bus and the mining intrinsic safety type sensor, wherein the power switch corresponds to the mining intrinsic safety type sensor in a one-to-one manner.
5. The mining intrinsically safe measurement device of claim 4, further comprising a connector disposed between the power switch and the mining intrinsically safe sensor;
the connector with switch one-to-one, just the connector with mining ann's type sensor can dismantle the connection.
6. The mining intrinsically safe measurement device of claim 1, further comprising an alarm unit connected to the master control unit.
7. The mining intrinsic safety type measuring device according to claim 6, characterized in that the alarm unit is specifically a sound and light alarm unit.
8. The mining intrinsically safe measurement device of claim 1, further comprising a wireless remote control receiving unit connected with the main control unit.
9. The mining intrinsically safe measurement device of claim 1, further comprising a rechargeable battery unit connected to the main control unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020988458.3U CN213574223U (en) | 2020-06-02 | 2020-06-02 | Mining intrinsic safety type measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020988458.3U CN213574223U (en) | 2020-06-02 | 2020-06-02 | Mining intrinsic safety type measuring device |
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| CN213574223U true CN213574223U (en) | 2021-06-29 |
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| CN202020988458.3U Active CN213574223U (en) | 2020-06-02 | 2020-06-02 | Mining intrinsic safety type measuring device |
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