CN202204939U - Intelligent metal detector - Google Patents
Intelligent metal detector Download PDFInfo
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- CN202204939U CN202204939U CN2011202203892U CN201120220389U CN202204939U CN 202204939 U CN202204939 U CN 202204939U CN 2011202203892 U CN2011202203892 U CN 2011202203892U CN 201120220389 U CN201120220389 U CN 201120220389U CN 202204939 U CN202204939 U CN 202204939U
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Abstract
The utility model discloses an intelligent metal detector and particularly relates to an intelligent metal detector being applicable for a belt conveying mechanism, in particular to a metal detector capable of giving an alarm while a metal is found and displaying a result by a liquid crystal display. The intelligent metal detector comprises an oscillatory circuit, a signal processing circuit, a steady state alarm circuit and a display control circuit. Two outputs of the oscillatory circuit are connected with the signal processing circuit; and an output of the signal processing circuit is connected with the display control circuit after passing the steady state alarm circuit. The oscillatory circuit and the signal processing circuit can sensitively detect whether the metal and a conveyor pass and can ensure that the steady state alarm circuit gives an alarm in time once the metal passes. The combined part of the conveyor does not give alarm information. In the display control circuit, programming is carried out by a single-chip so as to control the accumulation of the times of the detected metal within a non-reset period and control a liquid crystal display module to display the accumulated alarm times and the metal detecting information during the detection.
Description
Technical field
The utility model relates to a kind of SMART METALS detection instrument that is applied to belt transmission agency, especially can when finding metal, report to the police and with its result's of liquid crystal display metal detector.
Background technology
In industry such as generating, food processing, Feed Manufacturing; Before material transmit to get into comminutor through belt, need be with metal removals such as iron, copper, aluminium, otherwise will cause fatal destruction to comminutor; Usually adopt tramp iron separator to remove metal automatically with magnetic; Like iron, and these do not have the metal of magnetic for aluminium, copper etc., and tramp iron separator just can't be removed.The sniffer that perhaps has can detect metal and warning, but can not demonstrate result and detected metal number of times on the accumulative total same day, thereby can not utilize alarm times to judge the quality of material quality.
The utility model content
The utility model technical matters to be solved is; A kind of SMART METALS detection instrument is provided; Whether the material that this detection instrument can not only be measured on the belt conveyor contains metal; Warning message is not sent in joint portion at travelling belt, and can come out warning message and accumulative total alarm times with liquid crystal display.The utility model adopts following technical scheme for realizing above-mentioned purpose:
A kind of SMART METALS detection instrument, this SMART METALS detection instrument comprises: oscillatory circuit, signal processing circuit, stable state warning circuit, display control circuit.
Said signal processing circuit is made up of LF347 chip and peripheral circuit; The stable state warning circuit is made up of 74LS221 chip and peripheral circuit; Display control circuit is made up of AT89C51 single-chip microcomputer and liquid crystal display LCM12832 and peripheral circuit thereof, and oscillatory circuit is made up of two colpitts oscillation circuits.
First output terminal of said oscillatory circuit and the positive pole of the tenth electric capacity in the signal processing circuit join.
The 3IN+ pin of chip LF347 in second output terminal of said oscillatory circuit and the signal processing circuit is connected.
The tenth resistance in the said signal processing circuit is that the TRG1 end is connected with the 1A pin of 74LS221 chip in the stable state warning circuit with the dividing point of the 11 resistance;
One end of the 17 resistance in the said signal processing circuit is connected with the 2CLR pin of 74LS221 chip in the stable state warning circuit with the tie point of an end of the 18 resistance.
The output terminal C contact of the relay in the said signal processing circuit and D contact respectively with display control circuit in the E end of Collector of photoelectrical coupler OC1 hold with F and be connected.
The utility model is characterised in that: adopt an oscillatory circuit to seek metal; Through detecting the variation of output voltage size; Confirm that whether metal exists; And through the programming Control of single-chip microcomputer accumulative total being detected the number of times of metal, and having or not the warning message of metal and number of times to come out with liquid crystal display.
The utility model is compared institute and is had beneficial effect and really be with prior art:
1. can detect in real time metal, send warning message, and not send warning message in the joint portion of travelling belt.
2. the oscillatory circuit of SMART METALS detection instrument, signal processing circuit, stable state warning circuit all adopt hardware circuit, and simple in structure, good stability, efficient are high.
3. realize result's accumulative total and demonstration with single-chip microcomputer and LCD MODULE, improved the intelligent degree of system.
Description of drawings
Fig. 1 is that a kind of principle of SMART METALS detection instrument connects block diagram;
Fig. 2 is the oscillatory circuit schematic diagram;
Fig. 3 is signal processing circuit figure;
Fig. 4 is stable state warning circuit figure;
Fig. 5 is display control circuit figure;
Fig. 6-a for do not detect metal and the joint portion that does not have a travelling belt through the time oscillatory circuit the oscillogram of first output terminal output.
Fig. 6-b is for being the oscillogram of first output terminal output of oscillatory circuit when detecting metal.
Fig. 6-c for do not detect metal and the joint portion that does not have a travelling belt through the time oscillatory circuit the oscillogram of second output terminal output.
Fig. 6-d be in the joint portion of travelling belt through the time oscillatory circuit the oscillogram of second output terminal output.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to utility model:
A kind of SMART METALS detection instrument, like Fig. 1, this SMART METALS detection instrument comprises: oscillatory circuit, signal processing circuit, stable state warning circuit, display control circuit.
Said signal processing circuit is made up of LF347 chip and peripheral circuit; The stable state warning circuit is made up of 74LS221 chip and peripheral circuit; Display control circuit is made up of AT89C51 single-chip microcomputer and liquid crystal display LCM12832 and peripheral circuit thereof, and oscillatory circuit is made up of two colpitts oscillation circuits.
First output terminals A of said oscillatory circuit and the positive pole of the tenth capacitor C 10 in the signal processing circuit join.
The 3IN+ pin of chip LF347 in the second output terminal B of said oscillatory circuit and the signal processing circuit is connected.
The tenth resistance R 10 in the said signal processing circuit is that the TRG1 end is connected with the 1A pin of 74LS221 chip in the stable state warning circuit with the dividing point of the 11 resistance R 11;
One end of the 17 resistance R 17 in the said signal processing circuit be connected with the 2CLR pin of 74LS221 chip in the stable state warning circuit with the tie point CLR of an end of the 18 resistance R 18.
The output terminal C contact of the relay J 1 in the said signal processing circuit and D contact respectively with display control circuit in the E end of Collector of photoelectrical coupler OC1 hold with F and be connected.
Described oscillatory circuit; Like Fig. 2, it comprises: first to the 9th capacitor C 1～C9, first to the 3rd resistance R 1～R3, the first slide rheostat R21, first to the 3rd inductance L 1～L3, the first and second JFET FETs (Q1～Q2) and a direct supply VCC.
Connection between the above-mentioned device is following:
One end of first capacitor C 1 is connected with an end of the 3rd capacitor C 3; Its tie point is connected to the 2nd JFET FET Q2 through the 6th capacitor C 6) gate pole, the gate pole of the 2nd JFET FET (Q2) connects the source electrode and the ground connection of the 2nd JFET FET (Q2) through second resistance R 2.
One end of second capacitor C 2 is connected with an end of the 4th capacitor C 4; Its tie point connects the gate pole that is connected to a JFET FET (Q1) through the 5th capacitor C 5, and the gate pole of a JFET FET (Q1) connects the source electrode and the ground connection of a JFET FET (Q1) through first resistance R 1.
The other end of third and fourth capacitor C 3, C4 connects ground; One end of the other end of first capacitor C 1 and first inductance L 1 and after the 7th capacitor C 7, be connected to the drain electrode of a JFET FET (Q1) and an end of second inductance L 2.
The other end of second capacitor C 2 is connected to the drain electrode of the 2nd JFET FET (Q2) and an end of the 3rd inductance L 3 after capacitor C 8.
One end of second inductance L, 2 another termination the 3rd resistance R 3, the other end of the 3rd inductance L 3 and an end of the 9th capacitor C 9, the other end ground connection of the 9th capacitor C 9;
The other end of the 3rd resistance R 3 is received direct supply Vcc behind the first slide rheostat R21.
The tie point of one end of one end of the 3rd resistance R 3 and the 9th capacitor C 9 is first output terminals A of oscillatory circuit; The other end of first inductance L 1 is the second output terminal B of oscillatory circuit.
Described signal processing circuit; Like Fig. 3, it comprises: chip LF347, the tenth to the 12 capacitor C 10～C12, the 14 capacitor C the 14, the 4th to the 11 resistance R 4～R11, the 13 resistance to the 18 resistance R 13～R18, the 20 resistance R 20, second, third slide rheostat R22, R23, diode D1 and positive direct-current power supply+vcc and negative direct supply-vcc.
Connection between the above-mentioned device is following:
The end of the second slide rheostat R22 is through the 8th resistance (R8), the 9th resistance R 9 ground connection, and the other end of the second slide rheostat R22 is connected with direct supply VREF;
The IN+ pin of chip LF347 is connected with the dividing point of the 8th resistance R 8 and the 9th resistance R 9.
The OUT pin of chip LF347 is connected with an end of the tenth resistance R 10 and an end of the 20 resistance R 20; The other end of the tenth resistance R 10 is through the 11 resistance R 11 ground connection, and the dividing point between the other end of the tenth resistance R 10 and the 11 resistance R 11 is the TRG1 end.
The VCC+ pin of chip LF347 and the other end of the 20 resistance R 20, an end, the direct supply+vcc of the 16 resistance R 16 are connected; The 4OUT pin of the other end of the 16 resistance R 16 and chip LF347 is through the 17 resistance R 17 and the 18 resistance R 18 ground connection, and the dividing point of the 17 resistance R 17 and the 18 resistance (R18) is the CLR signal end.
The 2IN+ pin of chip LF347 is through the 5th resistance R 5 ground connection.
The 2IN-pin of chip LF347 connects the negative pole of the tenth capacitor C 10 through the 4th resistance R 4; End after the 2IN-pin of chip LF347 and the 6th resistance R 6 and 11 parallel connections of the 11 capacitor C is connected.
The other end after the 2OUT pin of chip LF347 and the 6th resistance R 6 and 11 parallel connections of the 11 capacitor C is connected, and through the 7th resistance R the 7, the 12 capacitor C 12 ground connection;
The 3IN-pin of chip LF347 and 3OUT pin are connected with the positive pole of diode D1;
The pin VCC-of chip LF347 receives direct supply-vcc.
End after the 4IN+ pin of chip LF347 and the 15 resistance R 15 and 14 parallel connections of the 14 capacitor C is connected the other end ground connection after the 15 resistance R 15 and 14 parallel connections of the 14 capacitor C; The 4IN+ pin of chip LF347 is connected with the negative pole of diode D1;
The end of the 3rd slide rheostat R23 is through the 13 resistance (R13), the 14 resistance R 14 ground connection, and the other end of the 3rd slide rheostat R23 is connected with direct supply VREF.
The 4IN-pin of chip LF347 is connected with the dividing point of the 13 resistance R 13 and the 14 resistance R 14.
Described stable state warning circuit; Like Fig. 4, it comprises: chip 74LS221, the 12 resistance R the 12, the 19 resistance R the 19, the 24 resistance R the 24, the 25 resistance R the 25, the 13 capacitor C the 13, the 15 capacitor C 15, NPN type triode Q3, normally opened relay J1 and+direct supply of 5V.
Connection between the above-mentioned device is following:
The 1B pin of chip 74LS221 receives after being connected with
pin+direct supply of 5V;
The 2Q pin of chip 74LS221 is received the base stage of NPN type triode Q3 through the 24 resistance R 24; The collector of NPN type triode Q3 receives after the 25 resistance R 25+direct supply of 5V; Emitter ground connection behind the coil of relay J 1 of NPN type triode Q3;
The 2C of chip 74LS221
ExtPin connects the negative pole of the 15 capacitor C 15, and the positive pole of the 15 capacitor C 15 is received after the 19 resistance R 19+direct supply of 5V and the 2R of chip 74LS221
Ext/ C
ExtPin.
The 2A pin of chip 74LS221 is connected with the 1Q pin of chip 74LS221.
The 2B pin of chip 74LS221 connects+direct supply of 5V.
The 1C of chip 74LS221
ExtPin connects the negative pole of the 13 capacitor C 13, and the positive pole of the 13 capacitor C 13 connects+direct supply of 5V through the 12 resistance R 12.
The 1R of chip 74LS221
EXT/ C
EXTPin connect the 13 capacitor C 13 and the 12 resistance R 12 between dividing point.
Described display control circuit; Like Fig. 5, it comprises: single chip computer AT 89C51, LCD MODULE LCM12832, photoelectrical coupler OC1, the 26 to the 28 resistance R 26～R28, the 16 to 18 capacitor C 16～C18, crystal oscillator X1, K switch 1, direct supply VCC.
Connection between the above-mentioned device is following:
The GND pin ground connection of single chip computer AT 89C51.
The X2 pin of single chip computer AT 89C51 ground connection after the 17 capacitor C 17, the X1 pin of single chip computer AT 89C51 ground connection after the 16 capacitor C 16; The X1 pin of the termination single chip computer AT 89C51 of crystal oscillator X1, the other end connects the X2 pin of single-chip microcomputer AT89C51.
The I/O mouth P1.1 pin of single chip computer AT 89C51 connects the Collector end of photoelectrical coupler OC1, and meets direct supply VCC through the 26 resistance R 26; The Emitter end ground connection of photoelectrical coupler OC1; The Anode termination direct supply VCC of photoelectrical coupler OC1; The Collector termination of photoelectrical coupler OC1 connects the E end, and F holds ground connection.
The RST pin of single chip computer AT 89C51 is connected with an end of the 18 capacitor C 18 negative poles, K switch 1, an end of the 27 resistance R 27 respectively; The other end of K switch 1 and the 18 capacitor C 18 be anodal to be connected and to meet direct supply VCC, the other end ground connection of the 27 resistance R 27.
The VCC pin of single chip computer AT 89C51 with receive direct supply VCC after the FA pin is connected;
Five I/O mouth P2.0～P2.4 pins of single chip computer AT 89C51 link to each other respectively with pin RS, R/W, E, PSB, the RST pin of liquid crystal display LCM12832.
The VSS pin of liquid crystal display LCM12832 is connected with the LEDK pin and ground connection;
The LEDA pin of liquid crystal display LCM12832 inserts the VDD pin of liquid crystal display LCM12832 again after the 28 resistance R 28, and meets direct supply VCC.
The oscillogram of Fig. 6-a for exporting at first output terminal of the obstructed out-of-date oscillatory circuit in joint portion that does not detect metal and travelling belt, its waveform is a zero level.
Fig. 6-b is the oscillogram of first output terminal output of oscillatory circuit when just detecting metal, and when just detecting metal, its waveform is a negative pulse.
Fig. 6-c is not for detecting metal and the oscillogram of the joint portion that does not have travelling belt through second output terminal output of out-of-date oscillatory circuit, and through out-of-date, its waveform is a standard sine wave in the joint portion that does not detect metal and do not have travelling belt.
Fig. 6-d is the oscillogram of exporting through second output terminal of out-of-date oscillatory circuit in the joint portion of travelling belt, and the joint portion of travelling belt is the sine wave than Fig. 6-c standard sine wave amplitude reduces through out-of-date its waveform.
Said single chip computer AT 89C5 has just judged whether metal through judging the level that connects the I/O mouth; And accumulative total detects the number of times of metal; Demonstration through the programming Control liquid crystal display; When detecting metal, show the warning message of metal and the number of times of accumulative total, when not detecting metal, show the number of times of no metal and current accumulative total.
Claims (5)
1. SMART METALS detection instrument is characterized in that:
This SMART METALS detection instrument comprises oscillatory circuit, signal processing circuit, stable state warning circuit, display control circuit;
Said signal processing circuit is made up of LF347 chip and peripheral circuit; The stable state warning circuit is made up of 74LS221 chip and peripheral circuit; Display control circuit is made up of AT89C51 single-chip microcomputer and LCD MODULE LCM12832 and peripheral circuit thereof, and oscillatory circuit is made up of two colpitts oscillation circuits;
The positive pole of the tenth electric capacity (C10) in first output terminal (A) of said oscillatory circuit and the signal processing circuit joins;
The 3IN+ pin of chip LF347 in second output terminal (B) of said oscillatory circuit and the signal processing circuit is connected;
The tenth resistance (R10) in the said signal processing circuit is that the TRG1 end is connected with the 1A pin of 74LS221 chip in the stable state warning circuit with the dividing point of the 11 resistance (R11);
One end of the 17 resistance (R17) in the said signal processing circuit is connected with the 2CLR pin of 74LS221 chip in the stable state warning circuit with the tie point (CLR) of an end of the 18 resistance (R18);
The output terminal C contact of the relay in the said signal processing circuit (J1) and D contact respectively with display control circuit in the E end of Collector of photoelectrical coupler OC1 hold with F and be connected.
2. SMART METALS detection instrument according to claim 1 is characterized in that:
Described oscillatory circuit comprises first to the 9th electric capacity (C1～C9), first to the 3rd resistance (R1～R3), first slide rheostat (R21), first to the 3rd inductance (L1～L3), the first and second JFET FETs (Q1～Q2) and a direct supply VCC;
Connection between the above-mentioned device is following:
One end of first electric capacity (C1) is connected with an end of the 3rd electric capacity (C3); Its tie point warp the 6th electric capacity (C6) is connected to the gate pole of the 2nd JFET FET (Q2), and the gate pole of the 2nd JFET FET (Q2) connects the source electrode and the ground connection of the 2nd JFET FET (Q2) through second resistance (R2);
One end of second electric capacity (C2) is connected with an end of the 4th electric capacity (C4); Its tie point connects the gate pole that is connected to a JFET FET (Q1) through the 5th electric capacity (C5), and the gate pole of a JFET FET (Q1) connects the source electrode and the ground connection of a JFET FET (Q1) through first resistance (R1);
The other end of third and fourth electric capacity (C3, C4) connects ground; One end of the other end of first electric capacity (C1) and first inductance (L1) and behind the 7th electric capacity (C7), be connected to the drain electrode of a JFET FET (Q1) and an end of second inductance (L2);
The other end of second electric capacity (C2) is connected to the drain electrode of the 2nd JFET FET (Q2) and an end of the 3rd inductance (L3) behind electric capacity (C8);
One end of one end of another termination the 3rd resistance (R3) of second inductance (L2), the other end of the 3rd inductance (L3) and the 9th electric capacity (C9), the other end ground connection of the 9th electric capacity (C9);
The other end of the 3rd resistance (R3) is received direct supply Vcc behind first slide rheostat (R21);
The tie point of one end of one end of the 3rd resistance (R3) and the 9th electric capacity (C9) is first output terminal (A) of oscillatory circuit; The other end of first inductance (L1) is second output terminal (B) of oscillatory circuit.
3. a kind of SMART METALS detection instrument according to claim 1 is characterized in that:
Described signal processing circuit comprises chip LF347, the tenth to the 12 electric capacity (C10～C12), the 14 electric capacity (C14), the 4th to the 11 resistance (R4～R11), the 13 resistance to the 18 resistance (R13～R18), the 20 resistance (R20), second, third slide rheostat (R22, R23), diode (D1) and positive direct-current power supply+vcc and negative direct supply-vcc;
Connection between the above-mentioned device is following:
One end of second slide rheostat (R22) is through the 8th resistance (R8), the 9th resistance (R9) ground connection, and the other end of second slide rheostat (R22) is connected with direct supply VREF;
The IN+ pin of chip LF347 is connected with the dividing point of the 8th resistance (R8) with the 9th resistance (R9);
The OUT pin of chip LF347 is connected with an end of the tenth resistance (R10) and an end of the 20 resistance (R20); The other end of the tenth resistance (R10) is through the 11 resistance (R11) ground connection, and the other end of the tenth resistance (R10) and the dividing point between the 11 resistance (R11) are the TRG1 end;
The VCC+ pin of chip LF347 and the other end of the 20 resistance (R20), an end, the direct supply+vcc of the 16 resistance (R16) are connected; The other end of the 16 resistance (R16) and the 4OUT pin of chip LF347 are through the 17 resistance (R17) and the 18 resistance (R18) ground connection, and the 17 resistance (R17) is the CLR signal end with the dividing point of the 18 resistance (R18);
The 2IN+ pin of chip LF347 is through the 5th resistance (R5) ground connection;
The 2IN-pin of chip LF347 connects the negative pole of the tenth electric capacity (C10) through the 4th resistance (R4); End after the 2IN-pin of chip LF347 and the 6th resistance (R6) and the 11 electric capacity (C11) parallel connection is connected;
The other end after the 2OUT pin of chip LF347 and the 6th resistance (R6) and the 11 electric capacity (C11) parallel connection is connected, and through the 7th resistance (R7), the 12 electric capacity (C12) ground connection;
The 3IN-pin of chip LF347 and 3OUT pin are connected with the positive pole of diode (D1);
The pin VCC-of chip LF347 receives direct supply-vcc;
End after the 4IN+ pin of chip LF347 and the 15 resistance (R15) and the 14 electric capacity (C14) parallel connection is connected the other end ground connection after the 15 resistance (R15) and the 14 electric capacity (C14) parallel connection; The 4IN+ pin of chip LF347 is connected with the negative pole of diode (D1);
One end of the 3rd slide rheostat (R23) is through the 13 resistance (R13), the 14 resistance (R14) ground connection, and the other end of the 3rd slide rheostat (R23) is connected with direct supply VREF;
The 4IN-pin of chip LF347 is connected with the dividing point of the 13 resistance (R13) and the 14 resistance (R14).
4. SMART METALS detection instrument according to claim 1 is characterized in that:
Described stable state warning circuit comprise chip 74LS221, the 12 resistance (R12), the 19 resistance (R19), the 24 resistance (R24), the 25 resistance (R25), the 13 electric capacity (C13), the 15 electric capacity (C15), NPN type triode (Q3), normally opened relay (J1) and+direct supply of 5V;
Connection between the above-mentioned device is following:
The 1B pin of chip 74LS221 receives after being connected with
pin+direct supply of 5V;
The 2Q pin of chip 74LS221 is received the base stage of NPN type triode (Q3) through the 24 resistance (R24); The collector of NPN type triode (Q3) receives behind the 25 resistance (R25)+direct supply of 5V; The emitter of NPN type triode (Q3) ground connection behind the coil of relay (J1);
The 2Cext pin of chip 74LS221 is connected with the negative pole of the 15 electric capacity (C15);
The 2REXT/CEXT pin of chip 74LS221 connects the positive pole of the 15 electric capacity (C15), and connects+direct supply of 5V through the 19 resistance (R19);
The 2A pin of chip 74LS221 is connected with the 1Q pin of chip 74LS221;
The 2B pin of chip 74LS221 connects+direct supply of 5V;
The 1Cext pin of chip 74LS221 connects the negative pole of the 13 electric capacity (C13) and connects+direct supply of 5V through the 12 resistance (R12);
The 1REXT/CEXT pin of chip 74LS221 connect the 13 electric capacity (C13) and the 12 resistance (R12) between dividing point.
5. the SMART METALS detection instrument that is applicable to belt transmission agency according to claim 1 is characterized in that:
Described display control circuit comprises single chip computer AT 89C51, LCD MODULE LCM12832, photoelectrical coupler (OC1), the 26 to the 28 resistance (R26～R28), the 16 to 18 electric capacity (C16～C18), crystal oscillator (X1), switch (K1), direct supply VCC;
Connection between the above-mentioned device is following:
The GND pin ground connection of single chip computer AT 89C51;
The X2 pin of single chip computer AT 89C51 ground connection behind the 17 electric capacity (C17), the X1 pin of single chip computer AT 89C51 ground connection behind the 16 electric capacity (C16); The X1 pin of the termination single chip computer AT 89C51 of crystal oscillator X1, the other end connects the X2 pin of single-chip microcomputer AT89C51;
The I/O mouth P1.1 pin of single chip computer AT 89C51 connects the Collector end of photoelectrical coupler OC1, and meets direct supply VCC through the 26 resistance (R26); The Emitter end ground connection of photoelectrical coupler OC1; The Anode termination direct supply VCC of photoelectrical coupler OC1; The Collector termination of photoelectrical coupler OC1 connects the E end, and F holds ground connection;
The RST pin of single chip computer AT 89C51 is connected with an end of the 18 electric capacity (C18) negative pole, switch (K1), an end of the 27 resistance (R27) respectively; The other end of switch (K1) and the 18 electric capacity (C18) is anodal to be connected and to meet direct supply VCC, the other end ground connection of the 27 resistance (R27);
The VCC pin of single chip computer AT 89C51 with receive direct supply VCC after the EA pin is connected;
Five I/O mouth P2.0～P2.4 pins of single chip computer AT 89C51 link to each other respectively with pin RS, R/W, E, PSB, the RST pin of LCD MODULE LCM12832;
The VSS pin of LCD MODULE LCM12832 is connected with the LEDK pin and ground connection;
The LEDA pin of LCD MODULE LCM12832 inserts the VDD pin of LCD MODULE LCM12832 again behind the 28 resistance (R28), and meets direct supply VCC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202203892U CN202204939U (en) | 2011-06-27 | 2011-06-27 | Intelligent metal detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202203892U CN202204939U (en) | 2011-06-27 | 2011-06-27 | Intelligent metal detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202204939U true CN202204939U (en) | 2012-04-25 |
Family
ID=45969056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202203892U Expired - Fee Related CN202204939U (en) | 2011-06-27 | 2011-06-27 | Intelligent metal detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202204939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607132A (en) * | 2015-12-17 | 2016-05-25 | 无锡信大气象传感网科技有限公司 | Oscillation detection-based metal detector |
| CN111521202A (en) * | 2020-05-08 | 2020-08-11 | 量一度(苏州)传感科技有限公司 | Adjustable distance inductive sensor |
-
2011
- 2011-06-27 CN CN2011202203892U patent/CN202204939U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105607132A (en) * | 2015-12-17 | 2016-05-25 | 无锡信大气象传感网科技有限公司 | Oscillation detection-based metal detector |
| CN111521202A (en) * | 2020-05-08 | 2020-08-11 | 量一度(苏州)传感科技有限公司 | Adjustable distance inductive sensor |
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