CN201569471U - Mine intrinsic safety type ultrasonic coal site sensor - Google Patents
Mine intrinsic safety type ultrasonic coal site sensor Download PDFInfo
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- CN201569471U CN201569471U CN200920172320XU CN200920172320U CN201569471U CN 201569471 U CN201569471 U CN 201569471U CN 200920172320X U CN200920172320X U CN 200920172320XU CN 200920172320 U CN200920172320 U CN 200920172320U CN 201569471 U CN201569471 U CN 201569471U
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Abstract
The utility model discloses a mine intrinsic safety type ultrasonic coal site sensor, which consists of a host circuit and a speed sensor, wherein a host of the coal site sensor adopts an ARM MCU chip as a processor and comprises an LED digital display module, an ultrasonic transceiver module, a storage module, a CAN communication module, a relay output module and a switch power supply module. The mine intrinsic safety type ultrasonic coal site sensor can be widely applied to an underground belt conveyor integrated protection system, a belt conveyor conveying monitor system with host computer monitoring and other systems required data remote transmission.
Description
Technical field
The utility model relates to person in electronics, especially the ultrasonic coal site sensor of mine intrinsic safety type.
Background technology
The coal mine leather belt machine is as material-transporting system, and long distance, large conveying quantity, high-speed, powerful belt conveyor have obtained widespread use, and coal mine leather belt machine Integrated Protection System is the important assurance of the safe coal transportation system in colliery.The following function of the general branch of current integrated belt machine protection system: belt deviation, functions such as speed, overtemperature, broken belt, speed, coal piling protection.Coal site sensor is an indispensable significant element in the protection of belt feeder coal piling, because the singularity of down-hole belt feeder operation, current integrated belt machine protection system coal site sensor is mainly taked following mode: after 1) adopting the electric contact of two leads formation or touching coal, change the formation electric signal by contact resistance; 2) adopt mercury contact, run into coal after, after sensor produces angle of skew, after the mercury contact closure, produce signal.Above dual mode, not only precision is low, performance is extremely unreliable, and does not have data communication interface, and level output only is provided, and can't finish the intelligent data exchange; The closed-loop control function can't be independently finished in not control output; Do not have local Presentation Function, can't intuitively see current coal position state.
The utility model content
The purpose of this utility model provides the ultrasonic coal site sensor of mine intrinsic safety type, adopt 32 and have the ARM MCU chip of CAN interface, can accurately measure belt head coal bin coal position and coal piling situation, and carry out exchanges data by CAN bus and belt transport monitor system, to solve the problem that prior art occurs.
In order to achieve the above object, the technical scheme that the utility model adopted is:
The ultrasonic coal site sensor of mine intrinsic safety type, it is characterized in that: comprise that model is the ARMMCU chip of LPC2119, described ARM MCU pin of chip 1, there is lead to be connected to LED digital display module on pin 2 and the pin 12 respectively, there is lead to be connected to the ultrasonic transmission/reception module respectively on ARM MCU pin of chip 34 and the pin 46, there is lead to be connected to the CAN communication module respectively on ARM MCU pin of chip 3 and the pin 5, there is lead to be connected to memory module respectively on ARM MCU pin of chip 23 and the pin 27, there is lead to be connected to relay output module on the ARM MCU pin of chip 45, ARM MCU pin of chip 7, pin 18, pin 24, pin 43, draw 49, there is lead to be connected to switch power module respectively on pin 51 and the pin 63, described switch power module also is connected by each module of lead and other, and gives other each module for power supply; There are two leads to draw on the described ARM MCU pin of chip 14, draw and be connected to switch power module by lead again after lead is connected with pull-up resistor for described one, another root is drawn lead and is connected with ground connection behind electric capacity parallel with one another and the switch, after being connected with the resistance and light emitting diode of connecting by lead respectively on described ARM MCU pin of chip 39 and the pin 40, be connected to switch power module again, there are two leads to draw on the described ARM MCU pin of chip 41, draw for one and be connected to switch power module again after lead is connected with pull-up resistor, another root is drawn lead and is connected on the pin 2 of connector of a bipod, pin 1 ground connection of the connector of described bipod, be connected with a parallel circuit by lead between described ARM MCU pin of chip 61 and the pin 62, described parallel circuit comprises two electric capacity of mutual series connection, the electric capacity of described two series connection and a resistance and a crystal oscillator back parallel with one another constitute parallel circuit, also have lead to draw between the electric capacity of described two series connection, describedly draw lead ground connection.
Described switch power module comprises that model is the 3rd power supply chip that first power supply chip of MC34063, second source chip that model is SPX1117-1.8 and model are SPX1117-3.3; The pin 1 of described first power supply chip by lead respectively with the pin 7 of first power supply chip, pin 8 connects, there are two leads to draw on the pin 2, draw for one and be connected to external power source again after being connected with inductance on the lead, another root is drawn the negative electrode that lead is connected to voltage stabilizing diode, be divided into three the tunnel after being connected with electric capacity by lead on the pin 3 of described first power supply chip, one line conductor ground connection, be connected to external power source again after being connected with two electric capacity parallel with one another on another line conductor, the Third Road lead is connected to the anode of described voltage stabilizing diode, pin 4 ground connection of described first power supply chip, there are two leads to draw on the pin 5, draw for one and be connected with behind the resistance ground connection again on the lead, another root is connected to external power source after drawing and being connected with resistance on the lead again, there are three leads to draw on the pin 6 of described first power supply chip, draw for one and be connected with the pin 7 that is connected to described first power supply chip behind the resistance again on the lead, another root is drawn lead and is connected with ground connection behind two electric capacity parallel with one another, the 3rd draw be in series with inductance and diode successively on the lead after, be connected to relay output module again and power to relay output module; There is lead to draw on the described second source pin of chip 1, the described lead of drawing is connected to described ARMMCU pin of chip 18, pin 49 and pin 63 respectively, described second source pin of chip 2 ground connection, pin 3 is connected to external power source by lead, also be connected with electric capacity between described second source pin of chip 2 and the pin 3, also be connected with three electric capacity parallel with one another between pin 1 and the pin 2 by lead; There is lead to draw on the pin 1 of described the 3rd power supply chip, the described lead of drawing is connected to described ARM MCU pin of chip 7 respectively, pin 24, pin 43 and pin 51, the lead of drawing on the described pin 1 also is connected to described LED digital display module, the ultrasonic transmission/reception module, relay output module and memory module, give described each module for power supply, pin 2 ground connection of described the 3rd power supply chip, pin 3 is connected to external power source by lead, also be connected with two electric capacity parallel with one another between the pin 2 of described the 3rd power supply chip and the pin 3, also be connected with four electric capacity parallel with one another between pin 1 and the pin 2 by lead;
Described memory module comprises that model is the storage chip of 24C02, pin 1～the pin 4 of described storage chip interconnects back ground connection by lead each other, pin 1～pin 4 also is connected with the pin 7 of described storage chip by lead, the pin 5 of described storage chip and pin 6 are respectively by lead and described ARM MCU pin of chip 27 and 23 corresponding connections of pin, pin 7 is connected by the lead of drawing on the pin 1 of electric capacity and the 3rd power supply chip of described switch power module, the lead of drawing on the pin 1 of pin 8 and the 3rd power supply chip of described switch power module is connected, described storage chip pin 5 and being connected with between the pin 7 of electric capacity, pin 6 and be connected with between the pin 7 of electric capacity and also be connected with resistance by lead respectively;
Described LED digital display module comprises the LED seven-segment display that three models are HH508A, and respectively with three triodes of three corresponding electrical connections of LED seven-segment display, the collector of each triode connects with the pin 6 of corresponding LED seven-segment display by lead respectively, after being connected with resistance respectively on the base stage of triode, again respectively by lead and described ARM MCU pin of chip 1, pin 2 and pin 12 connect, after the emitter of three triodes connects by lead each other, be connected by the pin 1 of lead again with the 3rd power supply chip of described switch power module, the charactron segment encode pin 2～pin 5 of described three LED seven-segment displaies, after pin 8～pin 10 is connected with resistance by lead respectively, correspondence is connected to described ARM MCU pin of chip 38 again, pin 37, pin 35, pin 32, pin 31, pin 30 and pin 27, pin 7 ground connection of one of them LED seven-segment display;
Described relay output module includes a triode, after being connected with resistance by lead on the base stage of described triode, be connected with described ARM MCU pin of chip 45 again, the grounded emitter of triode, after being connected with relay on the collector, be connected to external power source again, described relay two ends also are parallel with diode, the connector that also comprises an octal, one end of two normally opened contacts of described relay is connected to the pin 1 of the connector of described octal respectively by lead, the other end is connected to the pin 2 of the connector of described octal respectively by lead, lead on the pin 6 of first power supply chip of described switch power module is connected to the pin 7 of the connector of described octal, pin 8 ground connection of the connector of described octal;
Described CAN communication module comprises that model is the CAN bus chip of PCA82C250, the pin 1 of described CAN bus chip is connected with described ARM MCU pin of chip 3 by lead, pin 2 ground connection, pin 3 is connected to external power source by lead, pin 4 is connected with described ARM MCU pin of chip 5 by lead, pin 6 and pin 7 be the pin 6 and the pin 5 of the connector by the corresponding octal that is connected to described relay output module of lead respectively, also be connected with resistance between the pin 6 of described CAN bus chip and the pin 7, be connected with ground connection behind the resistance on the pin 8 of described CAN bus chip by lead;
Described ultrasonic transmission/reception module comprises ultrasound transmitter device, ultrasonic receiver and model are the frequency phase lock chip of LM567, lead on the described ARM MCU pin of chip 34 is divided into two-way, one the tunnel is connected with on the pin 1 of the 3rd power supply chip that is connected to described switch power module behind the pull-up resistor, after another road is connected with resistance, lead is divided into two-way, after being in series with the hex inverter and resistance that a model is CD4069 on one line conductor, be connected to again on the binding post of described ultrasound transmitter device, another road is in series with after two models are the hex inverter of CD4069, is connected on another binding post of described ultrasound transmitter device again; Be connected with ground connection behind the electric capacity on described frequency phase lock pin of chip 1 and the pin 2 respectively, pin 7 ground connection, after pin 3 is connected with electric capacity by lead, be connected to a parallel branch again, described parallel branch comprises that three models of connecting mutually are the hex inverter of CD4069, after described three hex inverters are connected mutually, again with a resistance formation in parallel parallel branch, after described pin 3 is connected to parallel branch, be connected on the binding post of described ultrasonic receiver by lead again, another binding post ground connection of described ultrasonic receiver, there are two leads to draw on the described frequency phase lock pin of chip 4, draw lead for one and be connected with ground connection behind two electric capacity parallel with one another, another root lead is connected to external power source, be connected with resistance by lead between described frequency phase lock pin of chip 5 and the pin 6, also be connected with ground connection behind the electric capacity on the described pin 6 by lead, described frequency phase lock pin of chip 8 is connected to the photoelectrical coupler that model is PC357, the anode of light emitting diode is connected to external power source by resistance in the described photoelectrical coupler, the negative electrode of light emitting diode is connected with described frequency phase lock pin of chip 8, be connected with electric capacity between the emitter of the triode in the described photoelectrical coupler and the collector, also have two leads to draw on the collector of described triode, a lead is connected with on the pin 1 of the 3rd power supply chip that is connected to described switch power module behind the pull-up resistor again, another root is drawn lead and is connected on the described ARMMCU pin of chip 46, and the transmitter of described triode is also by lead ground connection.
The utility model adopts ARM32 position ARM MCU chip as core component, drives ultrasound transmitter device by ARM MCU chip output 40KHz signal, calculate belt feeder coal bin coal position situation by echoed signal, and accurately non-cpntact measurement produces coal the position highly.
When circuit design, ultrasound echo signal is taked frequency phase lock, and by interrupt notification ARM MCU chip, ARM MCU chip is measured an information of producing coal by the response to signal interruption to crossing to send with the time of reception difference.After ARM MCU chip calculated an information of producing coal, the charactron of video data being delivered to LED digital display module showed, and by the CAN communication module finish with coal mine under the exchanges data of transport monitor system.On the other hand, relay output module keeps the compatibility with current belt control system.
The utility model adopts 32 of new A RM and has the ARM MCU chip of CAN interface; and adopt ultrasound wave to carry out non-cpntact measurement belt feeder coal bin coal position data; has multiple output mode; use-pattern is changeable; can be used with current integrated belt machine protection equipment, can finish independent control function again.LED digital display module of the present utility model has three charactrons and shows coal position height, can show coal bunker information intuitively.The utlity model has the CAN communication function, other has the intelligent terminal of CAN interface data to be delivered to host computer by the CAN bus.The CAN interface is that a kind of high-performance is led the on-the-spot industrial bus of grasp more, works under 5000 baud rates, and data can effectively be transmitted 10Km.
Description of drawings
Fig. 1 is a mounting structure synoptic diagram of the present utility model.
Fig. 2 is the utility model circuit structure block diagram.
Embodiment
As shown in Figure 1 and Figure 2.The ultrasonic coal site sensor of mine intrinsic safety type, comprise that the model as CPU is the ARM MCU chip 4U3A of LPC2119, the pin 1 of described ARM MCU chip 4U3A, there is lead to be connected to LED digital display module on pin 2 and the pin 12 respectively, there is lead to be connected to the ultrasonic transmission/reception module respectively on the pin 34 of ARM MCU chip 4U3A and the pin 46, there is lead to be connected to the CAN communication module respectively on the pin 3 of ARM MCU chip 4U3A and the pin 5, there is lead to be connected to memory module respectively on the pin 23 of ARM MCU chip 4U3A and the pin 27, there is lead to be connected to relay output module on the pin 45 of ARM MCU chip 4U3A, the pin 7 of ARM MCU chip 4U3A, pin 18, pin 24, pin 43, draw 49, there is lead to be connected to switch power module respectively on pin 51 and the pin 63, described switch power module also is connected by each module of lead and other, and gives other each module for power supply; There are two leads to draw on the pin 14 of described ARM MCU chip 4U3A, draw and be connected to switch power module by lead again after lead is connected with pull-up resistor PR1 for described one, another root is drawn lead and is connected with ground connection behind capacitor P C7 parallel with one another and the switch P B1, be connected with the resistance R 30 of connecting by lead respectively on the pin 39 of described ARM MCU chip 4U3A and the pin 40, R31 and light emitting diode D10, behind the D11, be connected to switch power module again, there are two leads to draw on the pin 41 of described ARM MCU chip 4U3A, draw for one and be connected to switch power module again after lead is connected with pull-up resistor R58, another root is drawn on the pin 2 of the connector CON2 that lead is connected to a bipod, pin 1 ground connection of the connector CON2 of described bipod, be connected with a parallel circuit by lead between the pin 61 of described ARM MCU chip 4U3A and the pin 62, described parallel circuit comprises two capacitor C 28 of mutual series connection, C29, the capacitor C 28 of described two series connection, a C29 and a resistance R 55 and a crystal oscillator Y1 back parallel with one another constitute parallel circuit, the capacitor C 28 of described two series connection, also have lead to draw between the C29, describedly draw lead ground connection.
Described switch power module comprises that model is the 3rd power supply chip 3U1 that the first power supply chip U4 of MC34063, second source chip 2U3 that model is SPX1117-1.8 and model are SPX1117-3.3; The pin 1 of the described first power supply chip U4 by lead respectively with the pin 7 of the first power supply chip U4, pin 8 connects, there are two leads to draw on the pin 2, draw for one and be connected to external power source again after being connected with inductance L 1 on the lead, another root is drawn the negative electrode that lead is connected to voltage stabilizing diode 1D2, be divided into three the tunnel after being connected with capacitor C 2 by lead on the pin 3 of the described first power supply chip U4, one line conductor ground connection, be connected with two capacitor C 4 parallel with one another on another line conductor, be connected to external power source behind the C5 again, the Third Road lead is connected to the anode of described voltage stabilizing diode 1D2, pin 4 ground connection of the described first power supply chip U4, there are two leads to draw on the pin 5, draw for one and be connected with after the resistance R 5 ground connection again on the lead, another root is connected to external power source after drawing and being connected with resistance R 4 on the lead again, there are three leads to draw on the pin 6 of the described first power supply chip U4, draw for one and be connected with the pin 7 that is connected to the described first power supply chip U4 after the resistance R 3 again on the lead, another root is drawn lead and is connected with two capacitor C 1 parallel with one another, ground connection behind the C3, the 3rd draw be in series with inductance 1L1 and diode D1 on the lead successively after, be connected to relay output module again and power to relay output module; There is lead to draw on the pin 1 of described second source chip 2U3, describedly draw pin 18, pin 49 and the pin 63 that lead is connected to described ARM MCU chip 4U3A respectively, pin 2 ground connection of described second source chip 2U3, pin 3 is connected to external power source by lead, also be connected with electric capacity 2C2 between the pin 2 of described second source chip 2U3 and the pin 3, also be connected with three electric capacity 2C3,2C4,2C5 parallel with one another between pin 1 and the pin 2 by lead; There is lead to draw on the pin 1 of described the 3rd power supply chip 3U1, describedly draw the pin 7 that lead is connected to described ARM MCU chip 4U3A respectively, pin 24, pin 43 and pin 51, the lead of drawing on the described pin 1 also is connected to described LED digital display module, the ultrasonic transmission/reception module, relay output module and memory module, give described each module for power supply, pin 2 ground connection of described the 3rd power supply chip 3U1, pin 3 is connected to external power source by lead, also be connected with two electric capacity 3C1 parallel with one another between the pin 2 of described the 3rd power supply chip 3U1 and the pin 3,3C2 also is connected with four electric capacity 3C3 parallel with one another by lead between pin 1 and the pin 2,3C4,3C5,3C6;
Described memory module comprises that model is the storage chip U8 of 24C02, pin 1～pin 4 of described storage chip U8 interconnects back ground connection by lead each other, pin 1～pin 4 also is connected with the pin 7 of described storage chip U8 by lead, the pin 5 of described storage chip U8 and pin 6 are respectively by the pin 27 and pin 23 corresponding are connected of lead with described ARM MCU chip 4U3A, pin 7 is connected by the lead of drawing on the pin 1 of capacitor C 40 and the 3rd power supply chip 3U1 of described switch power module, the lead of drawing on the pin 1 of pin 8 and the 3rd power supply chip 3U1 of described switch power module is connected, described storage chip U8 pin 5 and being connected with between the pin 7 of capacitor C 40, pin 6 and be connected with between the pin 7 of capacitor C 40 and also be connected with resistance R 12 by lead respectively, R11;
Described LED digital display module comprises the LED seven-segment display S1 that three models are HH508A, S2, S3, and respectively with three triode 4V1 of three corresponding electrical connections of LED seven-segment display, 4V2,4V3, the collector of each triode connects with the pin 6 of corresponding LED seven-segment display by lead respectively, be connected with resistance 4R10 on the base stage of triode respectively, 4R11, behind the 4R12, pin 1 by lead and described ARM MCU chip 4U3A respectively again, pin 2 and pin 12 connect, three triode 4V1,4V2, after the emitter of 4V3 connects by lead each other, be connected by the pin 1 of lead again with the 3rd power supply chip 3U1 of described switch power module, described three LED seven-segment display S1, S2, charactron segment encode pin 2～pin 5 of S3, after pin 8～pin 10 is connected with resistance 4R2～4R8 by lead respectively, the corresponding again pin 38 that is connected to described ARM MCU chip 4U3A, pin 37, pin 35, pin 32, pin 31, pin 30 and pin 27, pin 7 ground connection of one of them LED seven-segment display 4V2;
Described relay output module includes a triode 6BG2, after being connected with resistance 6R1 by lead on the base stage of described triode 6BG2, pin 45 with described ARM MCU chip 4U3A is connected again, the grounded emitter of triode 6BG2, after being connected with relay 6JQ2 on the collector, be connected to external power source again, described relay 6JQ2 two ends also are parallel with diode 6D2, the connector JA1 that also comprises an octal, one end of two normally opened contacts of described relay 6JQ2 is connected to the pin 1 of the connector of described octal JA1 respectively by lead, the other end is connected to the pin 2 of the connector JA1 of described octal respectively by lead, lead on the pin 6 of the first power supply chip U4 of described switch power module is connected to the pin 7 of the connector JA1 of described octal, pin 8 ground connection of the connector JA1 of described octal;
Described CAN communication module comprises that model is the CAN bus chip 8U1 of PCA82C250, the pin 1 of described CAN bus chip 8U1 is connected by the pin 3 of lead with described ARM MCU chip 4U3A, pin 2 ground connection, pin 3 are connected to external power source by lead, and pin 4 is by lead and described ARM
The pin 5 of MCU chip 4U3A connects, pin 6 and pin 7 be pin 6 and the pin 5 of the connector JA1 by the corresponding octal that is connected to described relay output module of lead respectively, also be connected with resistance 8R1A between the pin 6 of described CAN bus chip 8U1 and the pin 7, be connected with ground connection behind the resistance 8R3 on the pin 8 of described CAN bus chip 8U1 by lead;
Described ultrasonic transmission/reception module comprises ultrasound transmitter device T2, ultrasonic receiver T1 and model are the frequency phase lock chip U2 of LM567, lead on the pin 34 of described ARM MCU chip 4U3A is divided into two-way, one the tunnel is connected with on the pin 1 of the 3rd power supply chip 3U1 that is connected to described switch power module behind the pull-up resistor R8, after another road is connected with resistance R 7, lead is divided into two-way, behind the hex inverter U1D and resistance R 6 that to be in series with a model on one line conductor be CD4069, be connected to again on the binding post of described ultrasound transmitter device T2, the hex inverter U1F that it is CD4069 that another road is in series with two models, behind the U1E, be connected to again on another binding post of described ultrasound transmitter device T2; Be connected with capacitor C 13 respectively on the pin 1 of described frequency phase lock chip U2 and the pin 2, ground connection behind the C14, pin 7 ground connection, after pin 3 is connected with capacitor C 9 by lead, be connected to a parallel branch again, described parallel branch comprises that three models of connecting mutually are the hex inverter U1A of CD4069, U1B, U1C, after described three hex inverters are connected mutually, again with a resistance R 1 formation parallel branch in parallel, after described pin 3 is connected to parallel branch, be connected on the binding post of described ultrasonic receiver T1 by lead again, another binding post ground connection of described ultrasonic receiver T1, there are two leads to draw on the pin 4 of described frequency phase lock chip U2, draw lead for one and be connected with two capacitor C 10 parallel with one another, ground connection behind the C11, another root lead is connected to external power source, be connected with resistance R 10 by lead between the pin 5 of described frequency phase lock chip U2 and the pin 6, also be connected with capacitor C 12 back ground connection on the described pin 6 by lead, the pin 8 of described frequency phase lock chip U2 is connected to the photoelectrical coupler DA1 that model is PC357, the anode of light emitting diode is connected to external power source by resistance R 13 among the described photoelectrical coupler DA1, the negative electrode of light emitting diode is connected with the pin 8 of described frequency phase lock chip U2, be connected with capacitor C 102 between the emitter of the triode among the described photoelectrical coupler DA1 and the collector, also have two leads to draw on the collector of described triode, a lead is connected with on the pin 1 of the 3rd power supply chip 3U1 that is connected to described switch power module behind the pull-up resistor R14 again, another root is drawn lead and is connected on the pin 46 of described ARM MCU chip 4U3A, and the transmitter of described triode is also by lead ground connection.
The ultrasonic coal site sensor of mine intrinsic safety type, it is processor that main frame adopts ARM MCU chip, comprise LED digital display module, ultrasonic transmission/reception module, memory module, CAN communication module, relay output module, switch power module, wherein the electric level interface of three of LED digital display module LED seven-segment displaies (the 6th pin) is connected with the I/O mouth (the 1st, 2,12 pin) of ARM MCU chip LPC2119 (5U1) by behind the triode serial resistance respectively, is used for gating and shows the position accordingly; Charactron segment encode pin is used to accept the segment encode information that CPU sends by the IO mouth 27,30,31,32,35,37,38 of resistance 4R2-4R8 and 5U1.34 pin, 46 pin of ultrasonic transmission/reception module and 5U1 join.CPU sends the pwm signal of 40KHz by 34 pin, through the driving circuit of forming by U1 (CD4069), ultrasonic pulsative signal is delivered to ultrasound transmitter device T2, T2 sends the ultrasonic signal of 40KHz to the space, ultrasound wave after reflection, T1 receives echoed signal by ultrasonic receiver, through being amplified into frequency phase lock device U2 (LM567), after U2 detects the useful signal of 40KHz, interrupt to the CPU request by optocoupler.CPU calculates an information of producing coal by sending and the returned signal mistiming.The output terminal of clock (the 6th pin) of the monolithic 24c02 register of memory module is connected with the input end of clock (the 23rd pin) of ARM MCU chip, the data input port of 24c02 register (the 5th pin) is connected with the communication data output terminal (the 27th pin) of ARM MCU chip, the bus transfer port the (the 1st of the 8U1 of CAN communication module (PCA82C250) differential bus transceiver, 4 pin) with the bus transfer port the (the 3rd of ARM MCU chip, 5 pin) the control signal output ends mouth (the 45th pin) that connects ARM MCU chip is put relay by the triode amplification control signal connection of relay output module, and 12～24V direct current is by the U4 (MC34063) of switch power module, 2U3 (SPX1117-1.8), 3U1 (SPX1117-3.3) chip is adjusted to each module for power supply.
When mounted, coal site sensor is hung over belt feeder coal bunker top, when the coal bunker hole capital after selling all securities, when display video data information is effective and after stable, by setting button on the lower panel, then current zero data deposits among the sensor internal EEPEOM, when coal is arranged, charactron normally shows 0-100cm, the coal position information of expression.When the coal bit data of sensor surpassed the inner setting value, sensor had control signal output, and the output of sensor communication bus can insert intelligent integrated belt machine protection system or host computer system.System will take to shut down or other safeguard measure according to coal position situation.
Claims (1)
1. the ultrasonic coal site sensor of mine intrinsic safety type, it is characterized in that: comprise that model is the ARMMCU chip of LPC2119, described ARM MCU pin of chip 1, there is lead to be connected to LED digital display module on pin 2 and the pin 12 respectively, there is lead to be connected to the ultrasonic transmission/reception module respectively on ARM MCU pin of chip 34 and the pin 46, there is lead to be connected to the CAN communication module respectively on ARM MCU pin of chip 3 and the pin 5, there is lead to be connected to memory module respectively on ARM MCU pin of chip 23 and the pin 27, there is lead to be connected to relay output module on the ARM MCU pin of chip 45, ARM MCU pin of chip 7, pin 18, pin 24, pin 43, draw 49, there is lead to be connected to switch power module respectively on pin 51 and the pin 63, described switch power module also is connected by each module of lead and other, and gives other each module for power supply; There are two leads to draw on the described ARM MCU pin of chip 14, draw and be connected to switch power module by lead again after lead is connected with pull-up resistor for described one, another root is drawn lead and is connected with ground connection behind electric capacity parallel with one another and the switch, after being connected with the resistance and light emitting diode of connecting by lead respectively on described ARM MCU pin of chip 39 and the pin 40, be connected to switch power module again, there are two leads to draw on the described ARM MCU pin of chip 41, draw for one and be connected to switch power module again after lead is connected with pull-up resistor, another root is drawn lead and is connected on the pin 2 of connector of a bipod, pin 1 ground connection of the connector of described bipod, be connected with a parallel circuit by lead between described ARM MCU pin of chip 61 and the pin 62, described parallel circuit comprises two electric capacity of mutual series connection, the electric capacity of described two series connection and a resistance and a crystal oscillator back parallel with one another constitute parallel circuit, also have lead to draw between the electric capacity of described two series connection, describedly draw lead ground connection.
Described switch power module comprises that model is the 3rd power supply chip that first power supply chip of MC34063, second source chip that model is SPX1117-1.8 and model are SPX1117-3.3; The pin 1 of described first power supply chip by lead respectively with the pin 7 of first power supply chip, pin 8 connects, there are two leads to draw on the pin 2, draw for one and be connected to external power source again after being connected with inductance on the lead, another root is drawn the negative electrode that lead is connected to voltage stabilizing diode, be divided into three the tunnel after being connected with electric capacity by lead on the pin 3 of described first power supply chip, one line conductor ground connection, be connected to external power source again after being connected with two electric capacity parallel with one another on another line conductor, the Third Road lead is connected to the anode of described voltage stabilizing diode, pin 4 ground connection of described first power supply chip, there are two leads to draw on the pin 5, draw for one and be connected with behind the resistance ground connection again on the lead, another root is connected to external power source after drawing and being connected with resistance on the lead again, there are three leads to draw on the pin 6 of described first power supply chip, draw for one and be connected with the pin 7 that is connected to described first power supply chip behind the resistance again on the lead, another root is drawn lead and is connected with ground connection behind two electric capacity parallel with one another, the 3rd draw be in series with inductance and diode successively on the lead after, be connected to relay output module again and power to relay output module; There is lead to draw on the described second source pin of chip 1, the described lead of drawing is connected to described ARMMCU pin of chip 18, pin 49 and pin 63 respectively, described second source pin of chip 2 ground connection, pin 3 is connected to external power source by lead, also be connected with electric capacity between described second source pin of chip 2 and the pin 3, also be connected with three electric capacity parallel with one another between pin 1 and the pin 2 by lead; There is lead to draw on the pin 1 of described the 3rd power supply chip, the described lead of drawing is connected to described ARM MCU pin of chip 7 respectively, pin 24, pin 43 and pin 51, the lead of drawing on the described pin 1 also is connected to described LED digital display module, the ultrasonic transmission/reception module, relay output module and memory module, give described each module for power supply, pin 2 ground connection of described the 3rd power supply chip, pin 3 is connected to external power source by lead, also be connected with two electric capacity parallel with one another between the pin 2 of described the 3rd power supply chip and the pin 3, also be connected with four electric capacity parallel with one another between pin 1 and the pin 2 by lead;
Described memory module comprises that model is the storage chip of 24C02, pin 1～the pin 4 of described storage chip interconnects back ground connection by lead each other, pin 1～pin 4 also is connected with the pin 7 of described storage chip by lead, the pin 5 of described storage chip and pin 6 are respectively by lead and described ARM MCU pin of chip 27 and 23 corresponding connections of pin, pin 7 is connected by the lead of drawing on the pin 1 of electric capacity and the 3rd power supply chip of described switch power module, the lead of drawing on the pin 1 of pin 8 and the 3rd power supply chip of described switch power module is connected, described storage chip pin 5 and being connected with between the pin 7 of electric capacity, pin 6 and be connected with between the pin 7 of electric capacity and also be connected with resistance by lead respectively;
Described LED digital display module comprises the LED seven-segment display that three models are HH508A, and respectively with three triodes of three corresponding electrical connections of LED seven-segment display, the collector of each triode connects with the pin 6 of corresponding LED seven-segment display by lead respectively, after being connected with resistance respectively on the base stage of triode, again respectively by lead and described ARM MCU pin of chip 1, pin 2 and pin 12 connect, after the emitter of three triodes connects by lead each other, be connected by the pin 1 of lead again with the 3rd power supply chip of described switch power module, the charactron segment encode pin 2～pin 5 of described three LED seven-segment displaies, after pin 8～pin 10 is connected with resistance by lead respectively, correspondence is connected to described ARM MCU pin of chip 38 again, pin 37, pin 35, pin 32, pin 31, pin 30 and pin 27, pin 7 ground connection of one of them LED seven-segment display;
Described relay output module includes a triode, after being connected with resistance by lead on the base stage of described triode, be connected with described ARM MCU pin of chip 45 again, the grounded emitter of triode, after being connected with relay on the collector, be connected to external power source again, described relay two ends also are parallel with diode, the connector that also comprises an octal, one end of two normally opened contacts of described relay is connected to the pin 1 of the connector of described octal respectively by lead, the other end is connected to the pin 2 of the connector of described octal respectively by lead, lead on the pin 6 of first power supply chip of described switch power module is connected to the pin 7 of the connector of described octal, pin 8 ground connection of the connector of described octal;
Described CAN communication module comprises that model is the CAN bus chip of PCA82C250, the pin 1 of described CAN bus chip is connected with described ARM MCU pin of chip 3 by lead, pin 2 ground connection, pin 3 is connected to external power source by lead, pin 4 is connected with described ARM MCU pin of chip 5 by lead, pin 6 and pin 7 be the pin 6 and the pin 5 of the connector by the corresponding octal that is connected to described relay output module of lead respectively, also be connected with resistance between the pin 6 of described CAN bus chip and the pin 7, be connected with ground connection behind the resistance on the pin 8 of described CAN bus chip by lead;
Described ultrasonic transmission/reception module comprises ultrasound transmitter device, ultrasonic receiver and model are the frequency phase lock chip of LM567, lead on the described ARM MCU pin of chip 34 is divided into two-way, one the tunnel is connected with on the pin 1 of the 3rd power supply chip that is connected to described switch power module behind the pull-up resistor, after another road is connected with resistance, lead is divided into two-way, after being in series with the hex inverter and resistance that a model is CD4069 on one line conductor, be connected to again on the binding post of described ultrasound transmitter device, another road is in series with after two models are the hex inverter of CD4069, is connected on another binding post of described ultrasound transmitter device again; Be connected with ground connection behind the electric capacity on described frequency phase lock pin of chip 1 and the pin 2 respectively, pin 7 ground connection, after pin 3 is connected with electric capacity by lead, be connected to a parallel branch again, described parallel branch comprises that three models of connecting mutually are the hex inverter of CD4069, after described three hex inverters are connected mutually, again with a resistance formation in parallel parallel branch, after described pin 3 is connected to parallel branch, be connected on the binding post of described ultrasonic receiver by lead again, another binding post ground connection of described ultrasonic receiver, there are two leads to draw on the described frequency phase lock pin of chip 4, draw lead for one and be connected with ground connection behind two electric capacity parallel with one another, another root lead is connected to external power source, be connected with resistance by lead between described frequency phase lock pin of chip 5 and the pin 6, also be connected with ground connection behind the electric capacity on the described pin 6 by lead, described frequency phase lock pin of chip 8 is connected to the photoelectrical coupler that model is PC357, the anode of light emitting diode is connected to external power source by resistance in the described photoelectrical coupler, the negative electrode of light emitting diode is connected with described frequency phase lock pin of chip 8, be connected with electric capacity between the emitter of the triode in the described photoelectrical coupler and the collector, also have two leads to draw on the collector of described triode, a lead is connected with on the pin 1 of the 3rd power supply chip that is connected to described switch power module behind the pull-up resistor again, another root is drawn lead and is connected on the described ARMMCU pin of chip 46, and the transmitter of described triode is also by lead ground connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920172320XU CN201569471U (en) | 2009-05-31 | 2009-05-31 | Mine intrinsic safety type ultrasonic coal site sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200920172320XU CN201569471U (en) | 2009-05-31 | 2009-05-31 | Mine intrinsic safety type ultrasonic coal site sensor |
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| CN201569471U true CN201569471U (en) | 2010-09-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398837A (en) * | 2011-12-05 | 2012-04-04 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Main shaft hoist shaft bottom coal pile monitoring system |
| CN102642722A (en) * | 2011-02-17 | 2012-08-22 | 淮南矿业(集团)有限责任公司 | Coal supply control device |
| CN106289457A (en) * | 2016-07-14 | 2017-01-04 | 天津市鑫成仪表有限公司 | A kind of magnetic induction level monitoring device based on CAN |
-
2009
- 2009-05-31 CN CN200920172320XU patent/CN201569471U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642722A (en) * | 2011-02-17 | 2012-08-22 | 淮南矿业(集团)有限责任公司 | Coal supply control device |
| CN102398837A (en) * | 2011-12-05 | 2012-04-04 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Main shaft hoist shaft bottom coal pile monitoring system |
| CN102398837B (en) * | 2011-12-05 | 2013-08-28 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Main shaft hoist shaft bottom coal pile monitoring system |
| CN106289457A (en) * | 2016-07-14 | 2017-01-04 | 天津市鑫成仪表有限公司 | A kind of magnetic induction level monitoring device based on CAN |
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