CN202351682U - Wireless network monitoring system used in welding production workshop - Google Patents
Wireless network monitoring system used in welding production workshop Download PDFInfo
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- CN202351682U CN202351682U CN2011204903841U CN201120490384U CN202351682U CN 202351682 U CN202351682 U CN 202351682U CN 2011204903841 U CN2011204903841 U CN 2011204903841U CN 201120490384 U CN201120490384 U CN 201120490384U CN 202351682 U CN202351682 U CN 202351682U
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Abstract
A wireless network monitoring system used in a welding production workshop belongs to the field of welding quality detection and control in welding production workshops, and is characterized by comprising a sensor, an embedded monitoring device, a WIFI (Wireless Fidelity) transmission device, a WIFI component, a wireless router and an industrial computer. During monitoring, the embedded monitoring device monitors all welding data of welding equipment through the sensor or in other manners and transmits the welding data to the WIFI transmission device through a CAN (Controller Area Network) bus, the welding data is then sent to the WIFI component through an SPI (Serial Peripheral Interface), the WIFI component sends the welding data to the wireless router, then the wireless router transmits the welding data to the industrial computer, and ultimately, the welding data is displayed on a display through special software. When the welding equipment is required to be set, set data sent by the special software on the industrial computer is transmitted to the embedded monitoring device through the wireless router, the WIFI component and the WIFI transmission device, and then the welding equipment is set and controlled by the embedded detection device.
Description
Technical field
A kind of welding workshop wireless network monitoring system based on CAN bus and WIFI radio network technique; Employing is based on the double-layer network mode transfer data of CAN bus and WIFI radio network technique, and aspect sends to the WIFI transmission equipment through the CAN field bus technique with welding gear each item welding data that embedded monitoring device monitors at the scene; Adopt the WIFI wireless technology that data transmission is arrived Surveillance center in the LAN aspect, and can set and control welding gear.Can be used for welding the welding quality detection and the welding control of workshop.
Background technology
Along with the raising day by day of industrial automatization, more and more stricter to the quality monitoring requirement of process of producing product, therefore, the accurate more method of employing monitors and control welding process and quality is a problem demanding prompt solution.Usually with weldingvoltage, welding current foundation as the monitoring welding quality; But welding quality receives many-sided the influence; Only weldingvoltage and welding current can not correct comprehensively reflection welding process and welding qualities, also can't conveniently set and adjust welding gear according to Monitoring Data; Simultaneously a large amount of monitoring equipments also bring very big problem to field wiring.
Wi-Fi; It is a kind of short range wireless transmission technology; Can in hundreds of feet scopes, support the radio signal that the internet inserts,, have the advantage of transmission speed height, long transmission distance according to new and old 802.11a, 802.11b, 802.11g, the 802.11n of being divided into of its speed with technology.
The CAN bus is one of most widely used fieldbus in the world, in recent years.High reliability that it had and good error detection capability come into one's own, and are widely used in that Computer Controlled System for Vehicle and environment temperature are abominable, electromagnetic radiation is strong and vibrates big industrial environment.
Summary of the invention
For overcoming the deficiency that existing monitoring technology monitoring welding parameter is not comprehensive, field wiring is difficult, can not control welding gear; The present invention proposes a kind of monitoring system; Can more comprehensively monitor each item welding parameter of welding gear; Solve the problem of field wiring difficulty, can also conveniently reset and adjust according to Monitoring Data to welding gear.
Welding workshop wireless network monitoring system is characterized in that: contain the welding gear, sensor, embedded monitoring device, WIFI transmitting device, WIFI assembly, wireless router and the industrial computer that connect successively, wherein:
The embedded monitoring device comprises: analog input circuit, digital quantity input circuit and switching value input circuit that a CPU, each output terminal are connected with each corresponding input end of a said CPU respectively; Switching value output circuit, analogue quantity output circuit and a CAN communicating circuit that each input end links to each other with each corresponding output terminal of a said CPU respectively, wherein:
Simulated measurement input circuit comprises welding current simulated measurement input circuit, arc voltage simulated measurement input circuit and shield gas flow rate simulated measurement input circuit, wherein: the welding current that the input end input of this welding current simulated measurement input circuit is gathered from said welding gear by Hall current sensor; The arc voltage that the input end input of this arc voltage simulated measurement input circuit is gathered from described welding gear by the Hall voltage sensor; The shield gas flow rate that the input end input of this shield gas flow rate simulated measurement input circuit is gathered from described welding gear by gas meter; Wherein, Each described simulated measurement input circuit comprises: two types of circuit that correspond respectively to analog quantity input signal positive half-wave and analog quantity negative input signal half-wave separately: positive half-wave simulated measurement input circuit and negative half-wave simulated measurement input circuit; Described each analoglike amount input circuit all comprises an operational amplifier; Output terminal all is serially connected with current-limiting resistance and backward dioded over the ground, still, and for the positive half-wave simulated measurement input circuit; Output terminal directly links to each other with negative input end simultaneously; Positive input terminal connects the positive half-wave output terminal of pairing sensor successively through filter capacitor, divider resistance, for negative half-wave simulated measurement input circuit, negative input end passes through corresponding filter capacitor again successively at the process feedback resistance and when output terminal links to each other, divider resistance links to each other with pairing sensor negative half-wave output terminal separately; Positive input terminal is resistance grounded then
The digital quantity input circuit; Comprise model be the high speed photo coupling O1 of 6N137 corresponding to wire feed rate pulse signal from wire-feed motor, the anode of wire-feed motor pulse signal directly links to each other with the pin 2 of said high speed photo coupling O1, negative terminal links to each other with the pin 3 of said high speed photo coupling O1 through current-limiting resistance; Connect the 5V power supply behind the pin 7 of said high speed photo coupling O1 and pin 8 short circuits; Pin 5 ground connection, the digital signal of pin 6 output terminals output connects a said CPU pin 30, between pin 6 and pin 8, connects filter capacitor; The second tunnel high speed photo coupling O2 is subsequent use
The switching value input circuit is input to a said CPU pin 21 behind the mu balanced circuit of starting the arc signal via terminals P 2, current-limiting resistance and voltage stabilizing diode composition from said welding gear again after connecing the photoelectric coupled circuit that model is TLP281-4 after the filter capacitor filtering,
The switching value output circuit; The starting the arc control signal that a said CPU sends, receipts arc control signal, welding finishing control signal and alerting signal connect the base stage of the triode of a grounded emitter separately respectively; Collector is respectively succeeded electrical equipment pin 5; The pin 4 of this relay connects between this relay pin 5 of 5V power supply and the 5V power supply and also connects a diode, and the normally closed interlock 1 of this relay outputs to the corresponding interface of welding gear through terminals P 3 respectively with normally open contact 3
Analogue quantity output circuit; Comprise welding current set-point output circuit and arc voltage set-point output circuit, wherein, the welding current pulse-width signal that a said CPU sends; Behind the 3rd high speed photo coupling O3, meet said phase inverter U4B; By exporting after the rc filter circuit filtering, the arc voltage set-point output circuit that a said CPU sends meets said phase inverter U4A behind the 4th high speed photo coupling O4 again, again by exporting after another rc filter circuit filtering; The independent current source of two said analogue quantity output circuits is that the rectification chip of LM7805 and current circuit that electric capacity is formed provide by external power source through model
The one CAN communicating circuit; Comprise that the 5th high speed photo coupling O5 and the 6th high speed photo coupling O6, model are that a CAN communication chip, terminals P 5 and the model of VP230 is the second rectification chip U11 of LM7805; The communication signal CAN1TX that a said CPU pin 33 sends is through behind said the 5th high speed photo coupling; Connect corresponding pin 1, the pin 2 of a said CAN communication chip; A said CAN communication chip pin 3, pin 4 send passes through the communication signal CAN1RX behind said the 6th high speed photo coupling O6, connects the pin 32 of a said CPU, a said CAN communication chip pin 6, pin 7 outputs corresponding to outside CAN communication signal through said terminals P 5 outputs; Between the pin 6 of a said CAN communication chip, pin 7, be connected to wire jumper and resistance; External power source through said terminals P 5 inputs connects the said second rectification chip U11 input end after electric capacity and resistance filtering, the output of this second rectification chip U11 provides independent current source for a said CAN communication after electric capacity and resistance filtering
The one CPU, adopting model is 32 Cortex M3 microprocessors based on the ARM kernel of STM32F103VET6;
The WIFI transmitting device is made up of the 2nd CPU, the 2nd CAN communicating circuit and SPI-WIFI circuit, wherein:
The 2nd CAN communicating circuit; Comprise that the 7th high speed photo coupling O7 and the 8th high speed photo coupling O8, model are that the 2nd CAN communication chip, terminals P 11 and the model of VP230 is the 3rd rectification chip U22 of LM7805; The communication signal CAN2TX that said the 2nd CPU pin 33 sends is through behind said the 7th high speed photo coupling; Connect corresponding pin 1, the pin 2 of said the 2nd CAN communication chip; Said the 2nd CAN communication chip pin 3, pin 4 send passes through the communication signal CAN2RX behind said the 8th high speed photo coupling, connects the pin 32 of said the 2nd CPU, said the 2nd CAN communication chip pin 6, pin 7 outputs corresponding to outside CAN communication signal through terminals P 11 outputs; Between the pin 6 of said the 2nd CAN communication chip, pin 7, be connected to wire jumper and resistance; External power source through said terminals P 11 inputs connects said the 3rd rectification chip U22 input end after electric capacity and resistance filtering, the output of the 3rd rectification chip U22 provides independent current source for said the 2nd CAN communication after electric capacity and resistance filtering
The SPI-WIFI circuit; Comprise socket JC2, JC3, SR SW1, wire jumper JC1, JC4, light emitting diode D2; Socket JC2, JC3 is last assigns a said WIFI assembly according to pins corresponding relation; The INT signal that said WIFI assembly pin 3 sends connects the 2nd CPU pin 29 through socket JC2 pin 3 through wire jumper JC1, and the RECV signal that said WIFI assembly pin 12 sends connects the 2nd CPU pin 20 through socket JC2 pin 12, and the SPI communication signal NSS that said WIFI assembly pin 15,16,17,18 sends, SCLK, MISO, MOSI signal join through socket JC3 pin 1,2,3,4 and said the 2nd CPU pin 14,15,16,17 respectively; The WIFI that said WIFI assembly pin 22 sends connects signal combination hub JC3 pin 8; Sending and receiving optical diode D2 behind resistance, light emitting diode D2 other end ground connection, the WAKE_UP signal that said the 2nd CPU sends is through behind the wire jumper JC4; Join through socket JC3 pin 5 and said WIFI assembly pin 19; SR SW1 one end ground connection, the reset signal of sending is joined through resistance combination hub JC3 pin 9 and said WIFI assembly pin 23
The 2nd CPU, adopting model is 32 Cortex M3 microprocessors based on the ARM kernel of STM32F103VET6;
Said WIFI assembly adopts the SPI interface WIFI data transmission module EMW-381-I3 of MXCHIP company, according to pins corresponding relation assign into WIFI transmitting device socket JC2, JC3 is last;
Said wireless router adopts the TL-WR740N of TP-LINK, joins with said WIFI assembly;
Said industrial computer adopts and grinds magnificent industrial computer IPC-610Mb, links to each other with wireless router through netting twine.
The invention has the beneficial effects as follows each item welding parameter that more comprehensively to monitor welding gear, solve the problem of field wiring difficulty, can also conveniently reset and adjust according to Monitoring Data to welding gear.
Description of drawings
Fig. 1 is a schematic block diagram of the present invention;
Fig. 2 is the schematic block diagram of the embedded pick-up unit of the present invention;
Fig. 3 is the schematic block diagram of WIFI transmitting device of the present invention;
Fig. 4 to Figure 10 is the different piece of the embedded monitoring device schematic diagram of the present invention, and wherein identical network label list is shown in the coconnected point of physics;
Fig. 4 is the circuit diagram of embedded monitoring device the one CPU part of the present invention;
Fig. 5 is the circuit diagram of the embedded monitoring device simulated measurement input circuit part of the present invention;
Fig. 6 is the circuit diagram of the embedded monitoring device digital quantity of the present invention input circuit part;
Fig. 7 is the circuit diagram of the embedded monitoring device switching value of the present invention input circuit part;
Fig. 8 is the circuit diagram of the embedded monitoring device switching value of the present invention output circuit part;
Fig. 9 is the circuit diagram of the embedded monitoring device analogue quantity output circuit part of the present invention
Figure 10 is the circuit diagram of embedded monitoring device the one CAN communicating circuit part of the present invention;
Figure 11 to Figure 13 is the different piece of WIFI transmitting device schematic diagram of the present invention, and wherein identical network label list is shown in the coconnected point of physics
Figure 11 is the circuit diagram of WIFI transmitting device the 2nd CPU part of the present invention;
Figure 12 is the circuit diagram of WIFI transmitting device the 2nd CAN communicating circuit part of the present invention;
Figure 13 is the circuit diagram of WIFI transmitting device SPI-WIFI circuit part of the present invention;
Embodiment
Technical scheme of the present invention is as shown in Figure 1, and to achieve these goals, the present invention adopts following technical scheme: comprise welding gear, sensor, embedded monitoring device, WIFI transmitting device, WIFI assembly, wireless router and industrial computer.
Wherein:
Sensor comprises Hall current sensor, Hall voltage sensor and flowmeter, is used to measure welding current, arc voltage, the gas flow of welding gear, the corresponding port of the embedded monitoring device of the output termination of each sensor.
Embedded monitoring device is as shown in Figure 2; Be used to monitor welding current, arc voltage, wire feed rate, starting the arc signal and the gas flow of welding gear; Welding current, arc voltage to the source of welding current are set; Send starting the arc control signal, receive arc control signal, welding finishing control signal and alerting signal to welding gear, embedded monitoring device one end connects sensor and welding gear, and the other end connects the WIFI transmitting device.
The WIFI transmitting device is as shown in Figure 3, is used for data transmission, and an end links to each other with embedded pick-up unit through the CAN bus, and the other end links to each other with the WIFI assembly.
The WIFI assembly is used for being inserted on the socket of WIFI transmitting device through WIFI wireless network transmissions data, links to each other with wireless router through the WIFI wireless network simultaneously.
Wireless router is used for building wireless network with the WIFI assembly, and the WIFI assembly receives and send to industrial computer through the data of wireless network transmissions by wireless router, and wireless router links to each other with industrial computer through netting twine.
Industrial computer is positioned on the Ethernet; Be the demonstration and the control terminal of welding workshop wireless network monitoring system; Industrial computer receives the detected welding data of embedded monitoring device; These data in real time are presented on the special software of industrial computer, and through special software welding gear are set and control in real time.
Described sensor comprises Hall current sensor, Hall voltage sensor and flowmeter, and wherein Hall current sensor adopts closed loop Hall current sensor CHB-1000S; The Hall voltage sensor adopts closed loop Hall voltage sensor CHV-600; Flowmeter adopts the ABGUG intelligent vortex shedding flowmeter.
Described embedded monitoring device comprises a CPU, simulated measurement input circuit, digital quantity input circuit, switching value input circuit, switching value output circuit, analogue quantity output circuit and a CAN communicating circuit.
Described embedded monitoring device the one CPU adopts 32 Cortex M3 microprocessors based on the ARM kernel; Model is STM32F103VET6, and a said CPU pin 10～19 connects analog input circuit, and a said CPU pin 29,30 connects digital input circuit; A said CPU pin 32,33 connects a CAN communicating circuit; In order to communicate by letter with the WIFI transmitting device, a said CPU pin 42,43 connects analogue quantity output circuit, and a said CPU pin 21,22,25,26 connects the switching value input circuit; A said CPU pin 27,28,45,46 connects the switching value output circuit, and C29, C30 and Y1 crystal are that a said CPU provides clock signal.
Described embedded monitoring device simulated measurement input circuit comprises terminals P 1, four-way operational amplifier U1, U2, U3 model LM324, diode D1-D10 model 1N4148 and some resistance, electric capacity; Specifically being connected between each device: five road analog input signals are through terminals P 1 input; Wherein, The described simulated measurement input circuit in each road comprises: two types of circuit that correspond respectively to analog quantity input signal positive half-wave and analog quantity negative input signal half-wave separately: positive half-wave simulated measurement input circuit and negative half-wave simulated measurement input circuit; Described each road simulated measurement input circuit all comprises one road operational amplifier; Operational amplifier output terminal all is serially connected with current-limiting resistance and backward dioded over the ground; But for the positive half-wave simulated measurement input circuit, output terminal directly links to each other with negative input end simultaneously; Positive input terminal connects the positive half-wave output terminal of pairing sensor successively through filter capacitor, divider resistance; For negative half-wave simulated measurement input circuit, negative input end links to each other with pairing sensor negative half-wave output terminal separately through corresponding filter capacitor, divider resistance again when passing through feedback resistance and output terminal links to each other successively, and positive input terminal is resistance grounded then.
Described embedded monitoring device digital quantity input circuit comprises terminals P 7, high speed photo coupling O1, O2 model 6N137, diode D15, D16 model 1N4148 and some current-limiting resistances, pull-up resistor, filter capacitor; Specifically being connected between each device: the two-way digital input signals is through terminals P 7 inputs; Connect the pin 2,3 of said high speed photo coupling O1, O2 respectively through corresponding current-limiting resistance; 2,3 cross-over connection diodes of the pin of said high speed photo coupling O1, O2; Connect the 5V power supply behind pin 7,8 short circuits of said high speed photo coupling O1, O2, at pin 6,8 indirect pull-up resistors, at pin 5,8 indirect filter capacitors; Pin 5 ground connection, the digital signal of pin 6 output terminals output connects a said CPU pin 29,30 respectively.
Described embedded monitoring device switching value input circuit comprises terminals P 2, four-way optocoupler U5 model TLP281-4, divider resistance, current-limiting resistance, voltage stabilizing diode, filter capacitor and pull down resistor; Specifically being connected between each device: four-way switch amount input signal is input to a said CPU pin 21,22,25,26 behind the mu balanced circuit through each self-corresponding current-limiting resistance and voltage stabilizing diode composition respectively successively again through terminals P 2 inputs after meeting optocoupler U5 after the filter capacitor filtering.
Described embedded monitoring device switching value output circuit comprises terminals P 3, four relays, four triode models 9013, four diode model 1N4148 and divider resistance, biasing resistor; Specifically being connected between each device: the four-way switch amount signal that a said CPU sends connects the base stage of the triode of a grounded emitter separately respectively; Collector is respectively succeeded electrical equipment pin 5; The pin 4 of this relay connects the 5V power supply; Also connect a diode between this relay pin 5 and the 5V power supply, the normally open contact 1 of this relay outputs to the corresponding interface of welding gear through terminals P 3 respectively with normally open contact 3.
Described embedded monitoring device analogue quantity output circuit comprises terminals P 6, high speed photo coupling O3, O4 model 6N137, six phase inverter U4 model 74HC14D, rectification chip U9 model LM7805 and some current-limiting resistances, filter capacitor, pull-up resistor, filter resistance; Specifically being connected between each device: the two-way pwm signal that a said CPU sends meets high speed photo coupling O3, O4 through each self-corresponding current-limiting resistance respectively; Meet phase inverter U4 through high speed photo coupling O3, O4 photoelectricity after isolating; Again by after the rc filter circuit filtering; Pin 2,4 outputs by terminals P 6; The external power source of terminals P 6 inputs transfers the 5V direct supply to by rectification chip U9 after filtering, again by for analogue quantity output circuit independent current source being provided behind the capacitor filtering.
Described embedded monitoring device the one CAN communicating circuit comprises two high speed photo coupling O5, O6 model 6N137, a CAN communication chip U10 model VP230, rectification chip U11 model LM7805, terminals P 5 and some filter capacitors, current-limiting resistance, pull-up resistor, wire jumper composition; Specifically being connected between each device: the communication signal CAN1_TX that a said CPU pin 33 sends is through behind the 5th high speed photo coupling; Connect corresponding pin 1, the pin 2 of a said CAN communication chip; The communication signal CAN1_RX that a said CAN communication chip pin 3, pin 4 send is through behind the 6th high speed photo coupling; Connect the pin 32 of a said CPU; A said CAN communication chip pin 6, pin 7 outputs corresponding to outside CAN communication signal through terminals P 5 outputs; Between the pin 6 of a said CAN communication chip, pin 7, be connected to wire jumper and resistance; External power source through terminals P 5 inputs connects the said second rectification chip U11 input end after electric capacity and resistance filtering, the output of this second rectification chip U11 provides independent current source for a said CAN communication after electric capacity and resistance filtering.
Described WIFI transmitting device comprises the 2nd CPU, the 2nd CAN communicating circuit and SPI-WIFI circuit.
Described WIFI transmitting device the 2nd CPU adopts 32 Cortex M3 microprocessors based on the ARM kernel; Model is STM32F103VET6; Said the 2nd CPU pin 14～17 connects said SPI-WIFI circuit socket JC3 pin 1～4, is used for the SPI communication, and said the 2nd CPU pin 29 connects said SPI-WIFI circuit socket JC2 pin 3 through wire jumper JC1; Said the 2nd CPU pin 32,33 connects said the 2nd CAN communicating circuit; Said the 2nd CPU pin 20 connects said SPI-WIFI circuit socket JC2 pin 12, and said the 2nd CPU pin 26 connects said SPI-WIFI circuit socket JC3 pin 5 through wire jumper JC4, and C29, C30 and Y1 crystal are that said the 2nd CPU provides clock signal.
Described WIFI transmitting device the 2nd CAN communicating circuit comprises two high speed photo coupling O7, O8 model 6N137, the 2nd CAN communication chip U21 model VP230, rectification chip U22 model LM7805, terminals P 11 and some filter capacitors, current-limiting resistance, pull-up resistor, wire jumper composition; Specifically being connected between each device: the communication signal CAN2TX that said the 2nd CPU pin 33 sends is through behind the 7th high speed photo coupling; Connect the corresponding pin 1,2 of said the 2nd CAN communication chip U21; The communication signal CAN2RX that said the 2nd CAN communication chip pin 3,4 sends is through behind the 8th high speed photo coupling; Connect the pin 32 of said the 2nd CPU; Said the 2nd CAN communication chip pin 6, pin 7 outputs corresponding to outside CAN communication signal through terminals P 11 outputs; Between the pin 6 of said the 2nd CAN communication chip, pin 7, be connected to wire jumper and resistance; External power source through said terminals P 11 inputs connects said the 3rd rectification chip U22 input end after electric capacity and resistance filtering, the output of the 3rd rectification chip U22 provides independent current source for said the 2nd CAN communication after electric capacity and resistance filtering.
Described WIFI transmitting device SPI-WIFI circuit comprises socket JC2, JC3, SR SW1, wire jumper JC1, JC4, light emitting diode D2; Socket JC2, JC3 is last assigns a said WIFI assembly according to pins corresponding relation; The INT signal that said WIFI assembly pin 3 sends connects the 2nd CPU pin 29 through socket JC2 pin 3 through wire jumper JC1; The RECV signal that said WIFI assembly pin 12 sends connects the 2nd CPU pin 20 through socket JC2 pin 12; The SPI communication signal NSS that said WIFI assembly pin 15,16,17,18 sends, SCLK, MISO, MOSI signal join through socket JC3 pin 1,2,3,4 and said the 2nd CPU pin 14,15,16,17 respectively; The WIFI that said WIFI assembly pin 22 sends connects signal combination hub JC3 pin 8, sending and receiving optical diode D2 behind resistance, light emitting diode D2 other end ground connection; The WAKE_UP signal that said the 2nd CPU sends is through behind the wire jumper JC4; Join through socket JC3 pin 5 and said WIFI assembly pin 19, SR SW1 one end ground connection, the reset signal of sending is joined through resistance combination hub JC3 pin 9 and said WIFI assembly pin 23.
Described WIFI transmitting device WIFI module adopts the SPI interface WIFI data transmission module EMW-381-I3 of MXCHIP company, according to pins corresponding relation assign into WIFI transmitting device socket JC2, JC3 is last.
Described wireless router adopts the TL-WR740N of TP-LINK, joins with said WIFI assembly.
Described industrial computer adopts and grinds magnificent industrial computer IPC-610Mb, links to each other with wireless router through netting twine.
The welding current of sensor acquisition welding gear, arc voltage and gas flow; Wire feed rate is obtained by the pulse signal of wire-feed motor; Starting the arc signal can directly be obtained by welding gear, and embedded monitoring device the one CPU asks for the mean value in the 100ms with each welding data of the welding gear that is collected, sends to the WIFI transmitting device through the CAN communication; Every WIFI transmitting device can connect eight embedded monitoring devices, and every welding gear is joined an embedded monitoring device; The WIFI transmitting device, is transported on the industrial computer special software through netting twine behind wireless router through wireless network transmissions after data are transferred to the WIFI assembly through the SPI communication; Treated; Be presented on the display, set when control, can set on software in that industrial computer is special-purpose soft welding gear; Setting value is transported to embedded monitoring device through wireless router, WIFI assembly, WIFI transmitting device, by embedded pick-up unit welding gear is set and is controlled.
Below in conjunction with Fig. 1 to Figure 13 the present invention is done further explanation.
As shown in Figure 1; The present invention includes sensor, embedded monitoring device, WIFI transmitting device, WIFI assembly, wireless router and industrial computer; Wherein sensor comprises Hall current sensor, Hall voltage sensor and flowmeter; Embedded monitoring device comprises a CPU, simulated measurement input circuit, digital quantity input circuit, switching value input circuit, switching value output circuit, analogue quantity output circuit and CAN communicating circuit, and the WIFI transmitting device comprises the 2nd CPU, CAN communicating circuit, SPI-WIFI circuit.
As shown in Figure 2; Embedded monitoring device comprises a CPU, simulated measurement input circuit, digital quantity input circuit, switching value input circuit, switching value output circuit, analogue quantity output circuit and a CAN communicating circuit; One end links to each other with welding gear, and one section links to each other with the WIFI transmitting device.
As shown in Figure 3, the WIFI transmitting device comprises the 2nd CPU, the 2nd CAN communicating circuit and SPI-WIFI circuit, and an end links to each other with the WIFI assembly, and an end links to each other with embedded monitoring device.
As shown in Figure 4; Embedded monitoring device the one CPU adopts 32 Cortex M3 microprocessors based on the ARM kernel; Model is STM32F103VET6, and a said CPU pin 10～19 connects analog input circuit, is used to receive welding current, arc voltage, gas flow signal; Also have two-way to be Redundancy Design, subsequent use; A said CPU pin 29,30 connects digital input circuit, and one the tunnel is used to receive the wire feed rate signal, and one the tunnel is Redundancy Design, subsequent use; A said CPU pin 32,33 connects a CAN communicating circuit, in order to communicate by letter with the WIFI transmitting device; A said CPU pin 42,43 connects analogue quantity output circuit, is used to set welding current and arc voltage; A said CPU pin 21,22,25,26 connects the switching value input circuit, and one the tunnel is used to receive starting the arc signal, and all the other are Redundancy Design, and are subsequent use; A said CPU pin 27,28,45,46 connects the switching value output circuit, is used to export starting the arc signal, receives the arc signal, welds end signal, alerting signal; C29, C30 and Y1 crystal are that a said CPU provides clock signal.
As shown in Figure 5; In embedded monitoring device simulated measurement input circuit, totally five road simulated measurement input circuits, signal is through terminals P 1 input; Wherein three the tunnel is welding current, arc voltage, the gas flow signal that sensor acquisition arrives; Two-way is Redundancy Design in addition, and is subsequent use, and simulating signal connects a said CPU pin 10～19 respectively behind positive half-wave simulated measurement input circuit and negative half-wave simulated measurement input circuit.
As shown in Figure 6, in embedded monitoring device digital quantity input circuit, the pulse signal of the wire feed rate of wire-feed motor connects a said CPU pin 29 by terminals P 7 inputs after high speed photo coupling photoelectricity is isolated, and another road is Redundancy Design, and is subsequent use.
As shown in Figure 7; In embedded monitoring device switching value input circuit, starting the arc signal is by terminals P 2 inputs, after the mu balanced circuit voltage stabilizing of current-limiting resistance and stabilivolt composition; After capacitor filter filtering, connect optocoupler again; After optocoupler photoelectricity is isolated, meet a said CPU, three-way switch amount input circuit is Redundancy Design in addition, and is subsequent use.
As shown in Figure 8; In embedded monitoring device switching value output circuit; The starting the arc signal that a said CPU sends, receipts arc signal, welding end signal, alerting signal; Connect the base stage of the triode of a grounded emitter separately respectively, collector is respectively succeeded electrical equipment pin 5, and the pin 4 of this relay connects the 5V power supply; Also connecing a diode model between this relay pin 5 and the 5V power supply is IN4148, and the normally open contact 1 of this relay outputs to the corresponding interface of welding gear through terminals P 3 respectively with normally open contact 3.
As shown in Figure 9; In embedded monitoring device analogue quantity output circuit; The two-way pwm signal that a said CPU sends meets phase inverter U4 respectively behind each self-corresponding photoelectric isolating circuit; Again by after the rc filter circuit filtering, output to the corresponding interface of welding gear by the pin 2,4 of terminals P 6, as the setting value of welding gear welding current, arc voltage.
Shown in figure 10; In embedded monitoring device the one CAN communicating circuit; Communication signal CAN1_TX, CAN1_RX signal between a said CPU and the said CAN communication chip U10 model VP230 arrive corresponding pin respectively behind each self-corresponding photoelectric isolating circuit; A said CAN communication chip U10 pin 6,7 sends the CAN communication signal through terminals P 5 outputs; Be used for carrying out the CAN communication with the WIFI transmitting device; Between the pin 6 of a said CAN communication chip, pin 7, be connected to wire jumper and resistance, after electric capacity and resistance filtering, connect the said second rectification chip U11 input end through the external power source of terminals P 5 inputs, the output of this second rectification chip U11 provides independent current source for a said CAN communication after electric capacity and resistance filtering.
Shown in figure 11; The CPU of WIFI transmitting device adopts 32 Cortex M3 microprocessors based on the ARM kernel, and model is STM32F103VET6, and said the 2nd CPU pin 14～17 connects said SPI-WIFI circuit socket JC3 pin 1～4; Be used for the SPI communication; Said the 2nd CPU pin 29 connects said SPI-WIFI circuit socket JC2 pin 3 through wire jumper JC1, and said the 2nd CPU pin 32,33 connects said the 2nd CAN communicating circuit, and said the 2nd CPU pin 20 connects said SPI-WIFI circuit socket JC2 pin 12; Said the 2nd CPU pin 26 connects said SPI-WIFI circuit socket JC3 pin 5 through wire jumper JC4, and C29, C30 and Y1 crystal are that said the 2nd CPU provides clock signal
Shown in figure 12; In WIFI transmitting device the 2nd CAN communicating circuit; Communication signal CAN2_TX, CAN2_RX signal between said the 2nd CPU and said the 2nd CAN communication chip U21 model VP230 arrive corresponding pin respectively behind each self-corresponding photoelectric isolating circuit; Said the 2nd CAN communication chip U10 pin 6,7 sends the CAN communication signal through terminals P 11 outputs; Be used for carrying out the CAN communication with embedded monitoring device; Between the pin 6 of said the 2nd CAN communication chip, pin 7, be connected to wire jumper and resistance, after electric capacity and resistance filtering, connect said the 3rd rectification chip U21 input end through the external power source of terminals P 11 inputs, the output of this second rectification chip U22 provides independent current source for said the 2nd CAN communication after electric capacity and resistance filtering.
Shown in figure 13; In the WIFI transmitting device SPI-WIFI circuit; The INT signal that said WIFI assembly sends connects the 2nd CPU pin 29 through socket JC2 pin 3 through wire jumper JC1, and the INT signal that said WIFI assembly pin 3 sends connects the 2nd CPU pin 29 through socket JC2 pin 3 through wire jumper JC1, and the RECV signal that said WIFI assembly pin 12 sends connects the 2nd CPU pin 20 through socket JC2 pin 12; The SPI communication signal NSS that said WIFI assembly pin 15,16,17,18 sends, SCLK, MISO, MOSI signal join through socket JC3 pin 1,2,3,4 and said the 2nd CPU pin 14,15,16,17 respectively; The WIFI that said WIFI assembly pin 22 sends connects signal combination hub JC3 pin 8, sending and receiving optical diode D2 behind resistance, light emitting diode D2 other end ground connection; The WAKE_UP signal that said the 2nd CPU sends is through behind the wire jumper JC4; Join through socket JC3 pin 5 and said WIFI assembly pin 19, SR SW1 one end ground connection, the reset signal of sending is joined through resistance combination hub JC3 pin 9 and said WIFI assembly pin 23.
Claims (1)
1. weld the workshop wireless network monitoring system, it is characterized in that: contain the welding gear, sensor, embedded monitoring device, WIFI transmitting device, WIFI assembly, wireless router and the industrial computer that connect successively, wherein:
The embedded monitoring device comprises: analog input circuit, digital quantity input circuit and switching value input circuit that a CPU, each output terminal are connected with each corresponding input end of a said CPU respectively; Switching value output circuit, analogue quantity output circuit and a CAN communicating circuit that each input end links to each other with each corresponding output terminal of a said CPU respectively, wherein:
Simulated measurement input circuit comprises welding current simulated measurement input circuit, arc voltage simulated measurement input circuit and shield gas flow rate simulated measurement input circuit, wherein: the welding current that the input end input of this welding current simulated measurement input circuit is gathered from said welding gear by Hall current sensor; The arc voltage that the input end input of this arc voltage simulated measurement input circuit is gathered from described welding gear by the Hall voltage sensor; The shield gas flow rate that the input end input of this shield gas flow rate simulated measurement input circuit is gathered from described welding gear by gas meter; Wherein, Each described simulated measurement input circuit comprises: two types of circuit that correspond respectively to analog quantity input signal positive half-wave and analog quantity negative input signal half-wave separately: positive half-wave simulated measurement input circuit and negative half-wave simulated measurement input circuit; Described each analoglike amount input circuit all comprises an operational amplifier; Output terminal all is serially connected with current-limiting resistance and backward dioded over the ground, still, and for the positive half-wave simulated measurement input circuit; Output terminal directly links to each other with negative input end simultaneously; Positive input terminal connects the positive half-wave output terminal of pairing sensor successively through filter capacitor, divider resistance, for negative half-wave simulated measurement input circuit, negative input end passes through corresponding filter capacitor again successively at the process feedback resistance and when output terminal links to each other, divider resistance links to each other with pairing sensor negative half-wave output terminal separately; Positive input terminal is resistance grounded then
The digital quantity input circuit; Comprise model be the high speed photo coupling O1 of 6N137 corresponding to wire feed rate pulse signal from wire-feed motor, the anode of wire-feed motor pulse signal directly links to each other with the pin 2 of said high speed photo coupling O1, negative terminal links to each other with the pin 3 of said high speed photo coupling O1 through current-limiting resistance; Connect the 5V power supply behind the pin 7 of said high speed photo coupling O1 and pin 8 short circuits; Pin 5 ground connection, the digital signal of pin 6 output terminals output connects a said CPU pin 30, between pin 6 and pin 8, connects filter capacitor; The second tunnel high speed photo coupling O2 is subsequent use
The switching value input circuit is input to a said CPU pin 21 behind the mu balanced circuit of starting the arc signal via terminals P 2, current-limiting resistance and voltage stabilizing diode composition from said welding gear again after connecing the photoelectric coupled circuit that model is TLP281-4 after the filter capacitor filtering,
The switching value output circuit; The starting the arc control signal that a said CPU sends, receipts arc control signal, welding finishing control signal and alerting signal connect the base stage of the triode of a grounded emitter separately respectively; Collector is respectively succeeded electrical equipment pin 5; The pin 4 of this relay connects between this relay pin 5 of 5V power supply and the 5V power supply and also connects a diode, and the normally closed interlock 1 of this relay outputs to the corresponding interface of welding gear through terminals P 3 respectively with normally open contact 3
Analogue quantity output circuit; Comprise welding current set-point output circuit and arc voltage set-point output circuit, wherein, the welding current pulse-width signal that a said CPU sends; Behind the 3rd high speed photo coupling O3, meet said phase inverter U4B; By exporting after the rc filter circuit filtering, the arc voltage set-point output circuit that a said CPU sends meets said phase inverter U4A behind the 4th high speed photo coupling O4 again, again by exporting after another rc filter circuit filtering; The independent current source of two said analogue quantity output circuits is that the rectification chip of LM7805 and current circuit that electric capacity is formed provide by external power source through model
The one CAN communicating circuit; Comprise that the 5th high speed photo coupling O5 and the 6th high speed photo coupling O6, model are that a CAN communication chip, terminals P 5 and the model of VP230 is the second rectification chip U11 of LM7805; The communication signal CAN1_TX that a said CPU pin 33 sends is through behind said the 5th high speed photo coupling; Connect corresponding pin 1, the pin 2 of a said CAN communication chip; A said CAN communication chip pin 3, pin 4 send passes through the communication signal CAN1_RX behind said the 6th high speed photo coupling O6, connects the pin 32 of a said CPU, a said CAN communication chip pin 6, pin 7 outputs corresponding to outside CAN communication signal through said terminals P 5 outputs; Between the pin 6 of a said CAN communication chip, pin 7, be connected to wire jumper and resistance; External power source through said terminals P 5 inputs connects the said second rectification chip U11 input end after electric capacity and resistance filtering, the output of this second rectification chip U11 provides independent current source for a said CAN communication after electric capacity and resistance filtering
The one CPU, adopting model is 32 Cortex M3 microprocessors based on the ARM kernel of STM32F103VET6;
The WIFI transmitting device is made up of the 2nd CPU, the 2nd CAN communicating circuit and SPI-WIFI circuit, wherein:
The 2nd CAN communicating circuit; Comprise that the 7th high speed photo coupling O7 and the 8th high speed photo coupling O8, model are that the 2nd CAN communication chip, terminals P 11 and the model of VP230 is the 3rd rectification chip U22 of LM7805; The communication signal CAN2TX that said the 2nd CPU pin 33 sends is through behind said the 7th high speed photo coupling; Connect corresponding pin 1, the pin 2 of said the 2nd CAN communication chip; Said the 2nd CAN communication chip pin 3, pin 4 send passes through the communication signal CAN2RX behind said the 8th high speed photo coupling, connects the pin 32 of said the 2nd CPU, said the 2nd CAN communication chip pin 6, pin 7 outputs corresponding to outside CAN communication signal through terminals P 11 outputs; Between the pin 6 of said the 2nd CAN communication chip, pin 7, be connected to wire jumper and resistance; External power source through said terminals P 11 inputs connects said the 3rd rectification chip U22 input end after electric capacity and resistance filtering, the output of the 3rd rectification chip U22 provides independent current source for said the 2nd CAN communication after electric capacity and resistance filtering
The SPI-WIFI circuit; Comprise socket JC2, JC3, SR SW1, wire jumper JC1, JC4, light emitting diode D2; Socket JC2, JC3 is last assigns a said WIFI assembly according to pins corresponding relation; The INT signal that said WIFI assembly pin 3 sends connects the 2nd CPU pin 29 through socket JC2 pin 3 through wire jumper JC1, and the RECV signal that said WIFI assembly pin 12 sends connects the 2nd CPU pin 20 through socket JC2 pin 12, and the SPI communication signal NSS that said WIFI assembly pin 15,16,17,18 sends, SCLK, MISO, MOSI signal join through socket JC3 pin 1,2,3,4 and said the 2nd CPU pin 14,15,16,17 respectively; The WIFI that said WIFI assembly pin 22 sends connects signal combination hub JC3 pin 8; Sending and receiving optical diode D2 behind resistance, light emitting diode D2 other end ground connection, the WAKE_UP signal that said the 2nd CPU sends is through behind the wire jumper JC4; Join through socket JC3 pin 5 and said WIFI assembly pin 19; SR SW1 one end ground connection, the reset signal of sending is joined through resistance combination hub JC3 pin 9 and said WIFI assembly pin 23
The 2nd CPU, adopting model is 32 Cortex M3 microprocessors based on the ARM kernel of STM32F103VET6;
Said WIFI assembly adopts the SPI interface WIFI data transmission module EMW-381-I3 of MXCHIP company, according to pins corresponding relation assign into WIFI transmitting device socket JC2, JC3 is last;
Said wireless router adopts the TL-WR740N of TP-LINK, joins with said WIFI assembly;
Said industrial computer adopts and grinds magnificent industrial computer IPC-610Mb, links to each other with wireless router through netting twine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204903841U CN202351682U (en) | 2011-11-30 | 2011-11-30 | Wireless network monitoring system used in welding production workshop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204903841U CN202351682U (en) | 2011-11-30 | 2011-11-30 | Wireless network monitoring system used in welding production workshop |
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| CN202351682U true CN202351682U (en) | 2012-07-25 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426447A (en) * | 2011-11-30 | 2012-04-25 | 北京工业大学 | Wireless network monitoring system of welding production workshop |
| CN103513638A (en) * | 2013-09-30 | 2014-01-15 | 上海交通大学 | Robot welding manufacturing producing line wireless network monitoring system |
| CN103921022A (en) * | 2013-09-18 | 2014-07-16 | 芜湖莫森泰克汽车科技有限公司 | Networking intelligent management system of welding machines |
| CN104749977A (en) * | 2015-02-11 | 2015-07-01 | 上海广为焊接设备有限公司 | Control circuit of integrated electric welding machine based on wireless transmission |
| CN104950684A (en) * | 2015-06-30 | 2015-09-30 | 西安交通大学 | Swarm robot collaborative scheduling measurement and control method and system platform |
| CN107530839A (en) * | 2015-02-06 | 2018-01-02 | 伊利诺斯工具制品有限公司 | Enter the wearable technology of line interface using wireless technology and welding equipment and monitoring device |
| CN112935604A (en) * | 2019-12-10 | 2021-06-11 | 刘振英 | Central control system for hardfacing production |
| CN114442519A (en) * | 2021-12-20 | 2022-05-06 | 南京铁道职业技术学院 | Rail vehicle sliding fault simulation system |
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2011
- 2011-11-30 CN CN2011204903841U patent/CN202351682U/en not_active Withdrawn - After Issue
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426447A (en) * | 2011-11-30 | 2012-04-25 | 北京工业大学 | Wireless network monitoring system of welding production workshop |
| CN103921022A (en) * | 2013-09-18 | 2014-07-16 | 芜湖莫森泰克汽车科技有限公司 | Networking intelligent management system of welding machines |
| CN103921022B (en) * | 2013-09-18 | 2015-12-09 | 芜湖莫森泰克汽车科技有限公司 | Welding machine networking intelligent management system |
| CN103513638A (en) * | 2013-09-30 | 2014-01-15 | 上海交通大学 | Robot welding manufacturing producing line wireless network monitoring system |
| CN103513638B (en) * | 2013-09-30 | 2016-06-01 | 上海交通大学 | Robot welding manufacturing line wireless network supervisory system |
| CN107530839A (en) * | 2015-02-06 | 2018-01-02 | 伊利诺斯工具制品有限公司 | Enter the wearable technology of line interface using wireless technology and welding equipment and monitoring device |
| CN104749977A (en) * | 2015-02-11 | 2015-07-01 | 上海广为焊接设备有限公司 | Control circuit of integrated electric welding machine based on wireless transmission |
| CN104950684A (en) * | 2015-06-30 | 2015-09-30 | 西安交通大学 | Swarm robot collaborative scheduling measurement and control method and system platform |
| CN104950684B (en) * | 2015-06-30 | 2016-07-06 | 西安交通大学 | A kind of group robot cooperative scheduling investigating method and system platform |
| CN112935604A (en) * | 2019-12-10 | 2021-06-11 | 刘振英 | Central control system for hardfacing production |
| CN114442519A (en) * | 2021-12-20 | 2022-05-06 | 南京铁道职业技术学院 | Rail vehicle sliding fault simulation system |
| CN114442519B (en) * | 2021-12-20 | 2023-09-22 | 南京铁道职业技术学院 | Rail vehicle slides trouble analog system |
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