CN201903778U - Multilevel quality monitoring system for functional ceramic isostatic pressing molding processing workshop - Google Patents
Multilevel quality monitoring system for functional ceramic isostatic pressing molding processing workshop Download PDFInfo
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- CN201903778U CN201903778U CN2010205981701U CN201020598170U CN201903778U CN 201903778 U CN201903778 U CN 201903778U CN 2010205981701 U CN2010205981701 U CN 2010205981701U CN 201020598170 U CN201020598170 U CN 201020598170U CN 201903778 U CN201903778 U CN 201903778U
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Abstract
The utility model discloses a multilevel quality monitoring system for a functional ceramic isostatic pressing molding processing workshop. The multilevel quality monitoring system comprises a workpiece level detection device, a presser level pressure monitoring device and a workshop level integrated monitoring system, wherein the workpiece level detection device comprises a light source, a camera, a collecting card, a weighing sensor, a weighing display controller and a computer; the presser level pressure monitoring device comprises a pressure sensor, an amplifier, a singlechip microcomputer, a liquid crystal module, an address latch, an address decoder, a clock module and an alarm lamp; the workshop level integrated monitoring system comprises a workpiece level detection device and a presser level pressure monitoring device communication module and a workshop level integrated analysis module; the workpiece level detection device is used for obtaining a shape parameter and a weight parameter of a workpiece; the presser level pressure monitoring device is used for monitoring the pressure and the pressure-holding time of a presser; and the workshop level integrated monitoring system is used for integrally analyzing the workpiece level and presser level information. With the adoption of the multilevel quality monitoring system for the functional ceramic isostatic pressing molding processing workshop, the multilevel, multi-index and multi-target multilevel quality monitoring for the processing workshop can be realized.
Description
Technical field
The utility model relates to the Quality Monitoring Control System in a kind of process, especially relates to the multistage Quality Monitoring Control System of a kind of function ceramics isostatic compaction job shop.
Background technology
Ceramic material becomes a kind of important new function material gradually, all is widely used in fields such as electronics industry, measurement instrument industry, military affairs, has problems such as stability is bad, poor anti jamming capability but have ceramic preparation technology now.How to improve with optimization production technology, to improve with controlling product quality be its top priority that faces.
The isostatic compaction processing technology is one of critical process of function ceramics processing, and the quality of its Forming Quality will directly have influence on the final mass of ceramic workpiece.Yet, because it is many, uncertain big to influence the factor of its Forming Quality, still lacking the management method of quantification at present, experience is the main means that its processing quality guarantees.In fact, people have obtained some progress in the automatically-monitored method of making great efforts to explore manufacture process in recent years.For example utilize statistical process control technology that product quality is monitored,, and in some industries, obtained using preferably by means of each operating mode of computer networking technology supervision product processing and fluctuation status thereof etc.But these technology are not effectively used in the function ceramics processing and forming.And because the complicacy of function ceramics processing and forming quality control, the method for supervising that adopts single level, single index, single object is to be difficult to guarantee its Forming Quality, press for from view of system engineering and monitor in all directions, just can achieve tangible results, guarantee its product quality.
Summary of the invention
The purpose of this utility model is to provide the multistage Quality Monitoring Control System of a kind of function ceramics isostatic compaction job shop, realizes the integrated monitoring of workpiece level, press level and workshop level.
For achieving the above object, the utility model adopts following technical scheme:
The utility model comprises workpiece level pick-up unit, press stage pressure monitoring device and workshop level integrated monitoring system; Wherein:
1) workpiece level pick-up unit: comprise claiming lighting source, ccd video camera, image pick-up card, LOAD CELLS, weighing displaying controller and computing machine; The workpiece reflection that lighting source shines first station inserts computing machine by being imaged onto on the ccd video camera through image pick-up card, inserts computing machine to the workpiece of second station through LOAD CELLS, weighing displaying controller;
2) press stage pressure monitoring device: comprise pressure transducer, high precision instrument amplifier, single-chip microcomputer, LCD MODULE, alarm lamp, address decoder, address latch and clock module; Pressure transducer is connected with press, and single-chip microcomputer is connected with pressure transducer through the high precision instrument amplifier; LCD MODULE, alarm lamp and clock module link to each other with single-chip microcomputer; LCD MODULE is connected to address latch through address decoder, and address latch links to each other with single-chip microcomputer, LCD MODULE;
3) workshop level integrated monitoring system: comprise workpiece level pick-up unit communication module, press stage pressure monitoring device communication module and workshop level integrated analysis module; Workshop level integrated analysis module is connected with press stage pressure monitoring device communication module with workpiece level pick-up unit communication module respectively;
Workpiece level pick-up unit, press stage pressure monitoring device are connected with workshop level integrated monitoring system;
Pressure transducer in the described press stage pressure monitoring device constitutes IN+ end and the IN-end that zeroing circuit inserts the high precision instrument amplifier through electric first resistance R 1, second resistance R 2, first capacitor C 13, second capacitor C 14, the 3rd capacitor C 48, the 4th capacitor C 49, the first inductance MB1, the second inductance MB2; Electric source filter circuit that constitutes by the 5th capacitor C 16, the 6th capacitor C 29 and the positive and negative terminal that is connected on the high precision instrument amplifier by the electric source filter circuit that the 7th capacitor C 15, the 8th capacitor C 28 constitute respectively; 1 pin Rg end and 8 pin Rg that the enlargement factor circuit that is made of the 3rd resistance R 5 is connected on the high precision instrument amplifier hold; The reference voltage end ground connection of high precision instrument amplifier; The filtering circuit that is made of the 9th capacitor C 17, the tenth capacitor C 50, the 4th resistance R 7, the 3rd inductance MB3 connects the OUTPUT end of high precision instrument amplifier; The OUTPUT end is connected with the ANIO end of single-chip microcomputer, the data I/O end of LCD MODULE is connected with single-chip microcomputer address/data signal end, alarm lamp links to each other with single-chip microcomputer with clock module, and the address input end of LCD MODULE is connected by the signal end of address latch, address decoder and single-chip microcomputer;
Described workpiece level pick-up unit communication module utilizes ICP/IP protocol to link to each other with workshop level integrated analysis module;
Described press stage pressure monitoring device communication module comprises: SC16SI752 expansion UART mouth chip, MAX3485 chip, single-chip microcomputer; Use SC16SI752 to expand 2 road RS485 interface buss, single-chip microcomputer uses the SPI interface to be connected with the SC16SI752 chip, and the P1.4 of single-chip microcomputer, P1.3, P1.2 connect SCLK, SO, the SI of SC16SI752; The P1.1 of single-chip microcomputer connects chip selection signal/CS of SC16SI752; The resetting pin RST of SC16SI752 connects the TDI pin of single-chip microcomputer, the TXA of SC16SI752, RXA, TXB, RXB connect RO, the DI pin of 2 road MAX3485 respectively, and the request transmitting terminal of the URAT of SC16SI752 is connected to the driving Enable Pin of MAX3485 and receives Enable Pin by the 74HC04 phase inverter.The interrupting input end of SC16SI752 connects high level by the 4th resistance R 8; The request transmitting terminal of the URAT of SC16SI752 is connected to the driving Enable Pin of MAX3485 and receives Enable Pin by the 74HC04 phase inverter; The single-chip microcomputer reset terminal connects the reset terminal of power monitoring chip CAT810.
Compare the beneficial effect that the utlity model has with background technology:
1) workpiece level size of the present utility model and device for detecting density are transferred to workshop level by ICP/IP protocol, allow engineering technical personnel can understand the real-time processing situation of production line at any time, have reduced the complexity of working;
2) press stage pressure monitoring device of the present utility model can not processed the type of press or the restriction of manufacturer's custom program, is installed in easily on the press, in order to the technological parameter of monitoring and the processing of optimization isostatic compaction;
3) workshop level integrated monitoring of the present utility model system, can show and monitor the quality information of workpiece and the state of press in real time, realize full automatic alarm and control, and set up coupled relation between workpiece quality and the press parameter, realize multi-level, many indexs in function ceramics processing and forming workshop, the multistage quality monitoring of multi-object.
The utility model is mainly used in the quality monitoring in the industrial circle.
Description of drawings
Fig. 1 is a general structure theory diagram of the present utility model.
Fig. 2 is pressure monitoring interface module figure.
Fig. 3 is a press stage pressure monitoring device schematic diagram.
Fig. 4 is press stage pressure monitoring device communication module figure.
Fig. 5 is that SPI writes sequential chart.
Fig. 6 is that SPI reads sequential chart.
Fig. 7 is that voltage transformation module 24V changes 5V figure.
Fig. 8 is that voltage conversion module 5V changes 3.3V figure.
Fig. 9 be voltage conversion module 5V commentaries on classics+5V and-5V figure.
Figure 10 is clock module figure.
Figure 11 is voltage detecting and reseting module figure.
Figure 12 is one-chip computer module figure.
Figure 13 is the voltage filter module map.
Figure 14 is the alarm lamp module map.
Among the figure: 1, workpiece level pick-up unit, 2, press stage pressure monitoring device, 3, workshop level integrated monitoring system, 11, lighting source, 12, workpiece, 13, ccd video camera, 14, image pick-up card, 15, LOAD CELLS, 16 weighing displaying controllers, 17, computing machine, 21, press, 22, pressure transducer, 23, the high precision instrument amplifier, 24, single-chip microcomputer, 25, alarm lamp, 26, LCD MODULE, 27, address decoder, 28, address latch, 29, clock module, 31, workpiece level pick-up unit communication module, 32, press stage pressure monitoring device communication module, 33, workshop level integrated analysis module.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the utility model comprises workpiece level pick-up unit 1, press stage pressure monitoring device 2 and workshop level integrated monitoring system 3;
Workpiece level pick-up unit is used to obtain the form parameter and the weight parameter of workpiece, and then obtains the density parameter of workpiece, shows the quality condition of workpiece level in real time;
Press stage pressure monitoring device is used to monitor the maximum pressure and the dwell time of press, and shows the duty of press by LCD MODULE, alarm lamp etc.;
Workshop level integrated monitoring system, be used to receive the information that workpiece level pick-up unit and press stage pressure monitoring device are obtained, and the information of workpiece level and press level carried out integrated analysis, set up the coupled relation between workpiece quality and the press parameter, realize multi-level, many indexs in function ceramics processing and forming workshop, the multistage quality monitoring of multi-object.Wherein:
1) workpiece level pick-up unit 1: as shown in Figure 1, at first lighting source 11 shines on the workpiece 12 of first station, consider the shape of workpiece 12, this device adopts the axial LED lighting source of low-angle, then the reflected light of workpiece by lens imaging to ccd video camera 13, the CBC company model that can adopt adjustable focus is TEC-MS 5 camera lenses, its interface type is the C type, and focal length is 55-146mm, the big depth of field, the 50mm telecentric iris, camera lens maximum diameter of hole ratio is 1: 2.8.Then image pick-up card 14 converts the light signal on the ccd video camera to electric signal, just original image is converted into digital picture, can adopt the IMAQ-PCI-1409 image pick-up card that uses NI company.This capture card is supported the various video standard: PAL, NTSC etc.The vision signal of IMAQ-PCI-1409 image pick-up card input is through digital decoder, analog to digital converter, and proportional zoom is reduced, and the look space-variant such as changes at processing, passes to the calculator memory real-time storage by pci bus.Computing machine is handled digital picture with the software systems of exploitation, and then obtains the height and the thickness information of workpiece and calculate the volume of workpiece; LOAD CELLS 15 is measured the weight of the workpiece 12 of second station then, inserts weighing displaying controller 16, and weighing displaying controller inserts computing machine 17.The LOAD CELLS N420 that can adopt great auspicious sensor apparatus company limited to produce, the range of this LOAD CELLS is: 0.3～7kg, composition error is 0.2%F.S, repeatability, linearity are 0.2%F.S, through weighing displaying controller access computing machine.The YH805 type weighing displaying controller that weighing displaying controller can adopt great auspicious sensor apparatus company limited to produce, YH805 is a towards the industrial control field weighing displaying controller of (or other need application places of analog quantity output).Its collection weight shows and simulating signal is output in one, and weight transmitter front end signal is handled and adopted high-precision 24 special-purpose A/D converters, and 16 D/A converter is adopted in simulating signal output.Maximum A/D umber of pulse: 1,000,00, can select two kinds of digital communication interface modes of RS232 and RS485.Its full scale temperature coefficient: 5PPM/ ℃, zero temperature drift: 0.06uV/ ℃, maximum sensitivity: 0.6uV/d, non-linear: as to be better than 0.01%FS, simulation output offset drift (0mA or 4mA): 50PPM/ ℃, last computer software utilizes volumetric parameter and weight parameter to calculate the density of workpiece 12;
2) press stage pressure monitoring device 2: as shown in Figure 2, the pressure monitoring interface module.The voltage of employing+5V.As shown in Figure 3, pressure transducer 22 constitutes IN+ end and the IN-end that zeroing circuit inserts high precision instrument amplifier 23 through first resistance R 1, second resistance R 2, first capacitor C 13, second capacitor C 14, the 3rd capacitor C 48, the 4th capacitor C 49, the first inductance MB1, the second inductance MB2; The specification that pressure transducer can adopt Beijing Beetech Technology Inc. to produce is the way paper tinsel metal strain plate of 10mm, operating temperature range :-196-+120 ℃, carries temperature compensation under the normal temperature: ± 1.0 * 10-6 strain/℃, deformation limit 5%.High precision instrument amplifier 23 can adopt AD620.AD620 is a low cost, and the high-precision meter amplifier only needs a non-essential resistance that gain is set, and gain margin is 1 to 10000.AD620 has high precision (maximum nonlinearity 40ppm), low maladjustment voltage (maximum 50uV) and low offset drift (maximum 0.6uV/c) characteristic.The electric source filter circuit that constitutes by the 5th capacitor C 16, the 6th capacitor C 29 and by the electric source filter circuit that the 8th capacitor C 15, the 9th capacitor C 28 constitute be connected on respectively high precision instrument amplifier 23 positive and negative terminal; The enlargement factor circuit that constitutes by the 3rd resistance R 5 be connected on high precision instrument amplifier 23 1 pin Rg end and 8 pin Rg hold; The reference voltage end ground connection of high precision instrument amplifier 23; The filtering circuit that constitutes by the tenth capacitor C the 17, the 11 capacitor C 50, the 4th resistance R 7, the 3rd inductance MB3 connect high precision instrument amplifier 23 the OUTPUT end; The OUTPUT end is connected with the ANIO end of single-chip microcomputer 24, and single-chip microcomputer can adopt C8051F064.LCD MODULE 26, alarm lamp 25 and clock module 29 link to each other with single-chip microcomputer 24; LCD MODULE 26 is connected to address latch 28 through address decoder 27, and address latch 28 links to each other with single-chip microcomputer 24, LCD MODULE 26, and the model of LCD MODULE is a TRULY M240128-1A1 type.Interface microcontroller as shown in figure 12.
3) workshop level integrated monitoring system comprises workpiece level pick-up unit communication module, press stage pressure monitoring device communication module, workshop integrated monitoring analysis module.
Workpiece level pick-up unit communication module adopts the scock socket to realize.PC in the workpiece level pick-up unit is initiated connection request to workshop level integrated monitoring system, after workshop level integrated monitoring system listens to connection request, has just set up connection between the two.
Press stage pressure monitoring device communication module: as shown in Figure 4, comprising: SC16SI752 expansion UART mouth chip, 2 MAX3485 chips.Use SC16SI752 to expand 2 road RS485 interface buss, SC16SI752 is the conversion chip that the band I2C/SPI bus interface of NXP company release is changeed binary channels URAT, and the speed up to 5Mbit/s can be provided.Single-chip microcomputer uses the SPI interface to be connected with the SC16SI752 chip, and the model of single-chip microcomputer can adopt C8051F064.The P1.4 of single-chip microcomputer, P1.3, P1.2 connect SCLK, SO, the SI of SC16SI752; The P1.1 of single-chip microcomputer connects chip selection signal/CS of SC16SI752; Single-chip microcomputer is realized the communication with SC16SI752 with IO mouth simulation spi bus agreement.SC16SI752 adopts the crystal oscillator of 11.0592M, and oscillatory circuit is made up of the 11 capacitor C the 11, the 12 capacitor C 10, is connected to the input and output pin of the crystal oscillator of SC16SI752.The resetting pin RST of SC16SI752 connects the TDI pin of single-chip microcomputer, resets by single-chip microcomputer.The TXA of SC16SI752, RXA, TXB, RXB connect RO, the DI pin of 2 road MAX3485 respectively, and the request transmitting terminal of the URAT of SC16SI752 is connected to the driving Enable Pin of MAX3485 and receives Enable Pin by the 74HC04 phase inverter.
The IO heel of single-chip microcomputer is simulated according to top sequential, and the interrupting input end of SC16SI752 connects high level by resistance R 8, and what SC16SI752 adopted is the inquiry mode of operation.The address of transmitting-receiving register RHR, the THR of SC16SI752 is 0x00.
As shown in Figure 5, when single-chip microcomputer sent data, the IO mouth of single-chip microcomputer simulation SPI writes sequential: it was 0 that the R/W position is set, A[3:0] position is 0000.If passage A, then CH[1:0] position be 00; If channel B, then CH[1:0] position be 01, D[7:0] position be data to be sent;
As shown in Figure 6, when single-chip microcomputer received data, the IO mouth of single-chip microcomputer simulation SPI reads sequential: it was 1 that the R/W position is set, A[3:0] position is 0000.If passage A, then CH[1:0] position be 00; If channel B, CH[1:0] position is 01, D[7:0] position is data to be received.
Workshop integrated monitoring analysis module is finished the information of workpiece level and press level is carried out integrated analysis, and this part work mainly utilizes software to realize.Realize the statistical Process Control of workpiece level workpiece size and workpiece density, utilize control chart to show the quality condition of workpiece in real time; The maximum pressure and the dwell time that show in real time press work, and compare with sample data in the past, and then judge the duty of press; Utilize artificial neural network to set up the dimension information of workpiece quality and the coupled relation between density information and the press pressure parameter.
4) voltage transformation module: as shown in Figure 7, Switching Power Supply output+24V voltage links to each other with VIN, the ON/OF end of LM2575 after through the power down protection circuit that is made of first diode, the 13 capacitor C 40, the OUTPUT end of LM2575 goes out C33, the 4th inductance L 6, the first magnetic beads output 5V voltage through the 14 capacitor C the 43, the 15 capacitor C 31, the 16 electric capacity;
As shown in Figure 8 ,+5V voltage output end is held through the Vin that the 17 capacitor C 41 meets a G1117, and Vout termination the 18 capacitor C the 42, the 19 capacitor C the 30, the 20 capacitor C 32 of a G1117, the 5th inductance H1 export one tunnel+3.3V voltage; + 5V voltage output end connects the Vin end of the 2nd G1117 through the 21 capacitor C 44, Vout termination the 22 capacitor C the 37, the 23 capacitor C the 45, the 24 capacitor C 36 of the 2nd G1117, the 6th inductance H3 export another road+3.3V voltage, one the road supplies with single-chip microcomputer C8051F064, and communication chip SC16SI752 is supplied with on another road.
As shown in Figure 9, + 5V voltage connects the VIN end of the power module A0509 of positive and negative dual output, A0509VOUT+ and VOUT-are through the 25 capacitor C 46, the 26 capacitor C 47 connects the Vin end of two MC78L05CP chips respectively, first MC78L05CP chip+the 5V output terminal is through the 27 capacitor C the 35, the 28 capacitor C 39 and the 3rd magnetic bead C5 output+5V burning voltage; Second MC78L05CP chip-the 5V output terminal is through the 30 capacitor C the 34, the 31 capacitor C 38 and the 4th magnetic bead C4 output-5V burning voltage; This 2 tunnel positive and negative 5V voltage provides voltage for instrumentation amplifier AD620.
In order to detect voltage better and voltage to be resetted, adopt as shown in figure 11 voltage detecting and reseting module.Adopt circuit as shown in figure 13 that voltage is carried out filtering.
5) clock module: as shown in figure 10, when mainboard to host computer transmission data the time, need the acquisition time of additional data, adopt the DS1302 clock chip to obtain system time herein, as the additional information of data, together be transferred to computing machine.
6) alarm lamp module adopts the LED lamp to show the duty of press in real time, and LED alarm lamp module as shown in figure 14.
Claims (4)
1. the multistage Quality Monitoring Control System of a function ceramics isostatic compaction job shop is characterized in that comprising workpiece level pick-up unit (1), press stage pressure monitoring device (2) and workshop level integrated monitoring system (3); Wherein:
1) workpiece level pick-up unit (1): comprise claiming lighting source (11), ccd video camera (13), image pick-up card (14), LOAD CELLS (15), weighing displaying controller (16) and computing machine (17); Lighting source (11) shines workpiece (12) reflected light of first station by being imaged onto on the ccd video camera (13), insert computing machine (17) through image pick-up card (14), insert computing machine (17) through LOAD CELLS (15), weighing displaying controller (16) to the workpiece (12) of second station;
2) press stage pressure monitoring device (2): comprise pressure transducer (22), high precision instrument amplifier (23), single-chip microcomputer (24), LCD MODULE (25), alarm lamp (26), address decoder (27), address latch (28) and clock module (29); Pressure transducer (22) is connected with press (21), and single-chip microcomputer (24) is connected with pressure transducer (22) through high precision instrument amplifier (23); LCD MODULE (26), alarm lamp (25) and clock module (29) link to each other with single-chip microcomputer (24); LCD MODULE (26) is connected to address latch (28) through address decoder (27), and address latch (28) links to each other with single-chip microcomputer (24), LCD MODULE (26);
3) workshop level integrated monitoring system (3): comprise workpiece level pick-up unit communication module (31), press stage pressure monitoring device communication module (32) and workshop level integrated analysis module (33); Workshop level integrated analysis module (33) is connected with press stage pressure monitoring device communication module (32) with workpiece level pick-up unit communication module (31) respectively;
Workpiece level pick-up unit (1), press stage pressure monitoring device (2) are connected with workshop level integrated monitoring system (3);
2. the multistage Quality Monitoring Control System of a kind of function ceramics isostatic compaction according to claim 1 job shop is characterized in that: the pressure transducer (22) in the described press stage pressure monitoring device (2) constitutes IN+ end and the IN-that zeroing circuit inserts high precision instrument amplifier (23) through electric first resistance (R1), second resistance (R2), first electric capacity (C13), second electric capacity (C14), the 3rd electric capacity (C48), the 4th electric capacity (C49), first inductance (MB1), second inductance (MB2) and holds; Electric source filter circuit that constitutes by the 5th electric capacity (C16), the 6th electric capacity (C29) and the positive and negative terminal that is connected on high precision instrument amplifier (23) by the electric source filter circuit that the 7th electric capacity (C15), the 8th electric capacity (C28) constitute respectively; Be connected on the 1 pin Rg end and the 8 pin Rg end of high precision instrument amplifier (23) by the enlargement factor circuit of the 3rd resistance (R5) formation; The reference voltage end ground connection of high precision instrument amplifier (23); (filtering circuit that MB3 constitutes connects the OUTPUT end of high precision instrument amplifier (23) by the 9th electric capacity (C17), the tenth electric capacity (C50), the 4th resistance (R7), the 3rd inductance; The OUTPUT end is connected with the ANIO end of single-chip microcomputer (24), the data I/O end of LCD MODULE (26) is connected with single-chip microcomputer (24) address/data signal end, alarm lamp (25) links to each other with single-chip microcomputer (24) with clock module (29), and the address input end of LCD MODULE (26) is connected with the signal end of single-chip microcomputer (24) by address latch (28), address decoder (27);
3. the multistage Quality Monitoring Control System of a kind of function ceramics isostatic compaction according to claim 1 job shop, it is characterized in that: described workpiece level pick-up unit communication module (31) utilizes ICP/IP protocol to link to each other with workshop level integrated analysis module (33);
4. the multistage Quality Monitoring Control System of a kind of function ceramics isostatic compaction according to claim 1 job shop, it is characterized in that: described press stage pressure monitoring device communication module (32) comprising: SC16SI752 expansion UART mouth chip, the MAX3485 chip, single-chip microcomputer (24); Use SC16SI752 to expand 2 road RS485 interface buss, single-chip microcomputer (24) uses the SPI interface to be connected with the SC16SI752 chip, and P1.4, the P1.3 of single-chip microcomputer (24), P1.2 connect SCLK, SO, the SI of SC16SI752; The P1.1 of single-chip microcomputer (24) connects chip selection signal/CS of SC16SI752; The resetting pin RST of SC16SI752 connects the TDI pin of single-chip microcomputer (24), the TXA of SC16SI752, RXA, TXB, RXB connect RO, the DI pin of 2 road MAX3485 respectively, and the request transmitting terminal of the URAT of SC16SI752 is connected to the driving Enable Pin of MAX3485 and receives Enable Pin by the 74HC04 phase inverter.The interrupting input end of SC16SI752 connects high level by the 4th resistance R 8; The request transmitting terminal of the URAT of SC16SI752 is connected to the driving Enable Pin of MAX3485 and receives Enable Pin by the 74HC04 phase inverter; Single-chip microcomputer (24) reset terminal connects the reset terminal of power monitoring chip CAT810.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059734A (en) * | 2010-11-09 | 2011-05-18 | 浙江大学 | Multi-stage QMCS (Quality Monitoring Control System) for isostatic-pressing functional ceramic processing workshop |
| CN103149891A (en) * | 2013-01-29 | 2013-06-12 | 中国工程物理研究院化工材料研究所 | Temperature isostatic pressure control system |
| CN104808596A (en) * | 2014-01-24 | 2015-07-29 | 广东科达洁能股份有限公司 | Ceramic wall floor tile production line monitoring system |
-
2010
- 2010-11-09 CN CN2010205981701U patent/CN201903778U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059734A (en) * | 2010-11-09 | 2011-05-18 | 浙江大学 | Multi-stage QMCS (Quality Monitoring Control System) for isostatic-pressing functional ceramic processing workshop |
| CN102059734B (en) * | 2010-11-09 | 2012-07-11 | 浙江大学 | Multi-stage QMCS (Quality Monitoring Control System) for isostatic-pressing functional ceramic processing workshop |
| CN103149891A (en) * | 2013-01-29 | 2013-06-12 | 中国工程物理研究院化工材料研究所 | Temperature isostatic pressure control system |
| CN103149891B (en) * | 2013-01-29 | 2015-03-18 | 中国工程物理研究院化工材料研究所 | Temperature isostatic pressure control system |
| CN104808596A (en) * | 2014-01-24 | 2015-07-29 | 广东科达洁能股份有限公司 | Ceramic wall floor tile production line monitoring system |
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