CN207319002U

CN207319002U - A kind of passback with geocoding is returned to school distributed output control circuit

Info

Publication number: CN207319002U
Application number: CN201721309981.3U
Authority: CN
Inventors: 孙浩宁
Original assignee: Southwest Jiaotong University
Current assignee: Southwest Jiaotong University
Priority date: 2017-10-11
Filing date: 2017-10-11
Publication date: 2018-05-04
Anticipated expiration: 2027-10-11

Abstract

Return to school distributed output control circuit the utility model discloses a kind of passback with geocoding, including be all connected to the MC145027 addressables of host computer and control preset receiving circuit, MC145026 to control preset transtation mission circuit of returning to school, the control of MC145027 addressables to perform receiving circuit；The preset transtation mission circuit connection MC145027 addressables of returning to school of MC145026 controls control preset receiving circuit；The preset transtation mission circuit connection MC145027 addressable controls of returning to school of MC145026 controls perform receiving circuit；Further include while connect the execution relay drive circuit that MC145027 addressables control preset receiving circuit and the control of MC145027 addressables performs receiving circuit；The utility model is flexible for installation, easy to maintain, lowers the complexity of interface and wiring, and the mechanism of returning to school also enhances the reliability of system.

Description

A kind of passback with geocoding is returned to school distributed output control circuit

Technical field

It the utility model is related to a kind of passback with geocoding and return to school and be distributed output control circuit.

Background technology

Industry spot, which is frequently encountered, is controlled equipment by output control circuit, to change the method for operation of equipment, Such as equipment starts, stops, rotating forward, invert, closes a floodgate, separating brake；For the operational outfit control of more of scene, traditional solution It is that equipment is concentrated by multi-cable and is wired to next output control circuit；Such a structure increases wiring and the complexity of interface Degree, is safeguarded and debugging is inconvenient, reduces reliability.

Utility model content

The utility model provides being compiled with address for a kind of flexible for installation, easy to maintain, reduction interface and wiring complexity The passback of code is returned to school distributed output control circuit.

Technical solution provided by the utility model is：A kind of passback with geocoding is returned to school distributed output control electricity The MC145027 addressables that road includes being all connected to host computer control preset receiving circuit, MC145026 to control preset transmission of returning to school Circuit, the control of MC145027 addressables perform receiving circuit；The preset transtation mission circuit connection MC145027 that returns to school of MC145026 controls Addressable controls preset receiving circuit；The preset transtation mission circuit connection MC145027 addressable controls of returning to school of MC145026 controls perform Receiving circuit；Further including while connecting MC145027 addressables controls preset receiving circuit and the control of MC145027 addressables to perform The execution relay drive circuit of receiving circuit.

Further, it is connected by three 18V power cords, 18V ground wires, input/output line buses with host computer distribution.

Further, the MC145027 addressables control preset receiving circuit to include MC145027 Integrated circuit IC 1, The pin 9 of IC1 connects host computer by input/output line；1 to 5 pin of IC1 is sequentially connected the 10 of geocoding switch SW1 To 6 pins, while one end of resistance R1, R2, R3, R4, R5 are connected respectively, the other end of resistance R1, R2, R3, R4, R5 access 18V power supplys；1 to 5 pin of SW1 is with meeting 18V；One end of the resistance R9 and capacitance C2 of the 10 pins connection parallel connection of IC1, it is in parallel Resistance R9 and capacitance C2 another termination 18V；The both ends of resistance R8 are respectively connected to 6 and 7 pins of IC1；The one of capacitance C1 Terminate, the other end connects 7 pins of IC1 into 18V；One end of the 11 pins connection resistance R6 of IC1, the other end of resistance R6 connect Connect 1 pin of triode BG1；With meeting 18V, the output of 2 pins is returned to school sends 1 signal of control to 3 pins of triode BG1, connects at the same time One end of connecting resistance R7；The other end connection 18V power supplys of R7 resistance；15,14,13, the 12 pins difference output control signal of IC1 1st, output control signal 2, output control signal 3 and output control signal 4, the 16 pins connection 18V power supplys of IC1, the connection of 8 pins 18V.

Further, the control of MC145027 addressables, which performs receiving circuit, includes MC145027 Integrated circuit IC 2, IC2's Pin 9 connects host computer by input/output line；1 to 5 pin of IC2 is sequentially connected 10 to 6 drawing for geocoding switch SW2 Foot, while one end of resistance R13, R14, R15, R16, R17, the other end of resistance R13, R14, R15, R16, R17 are connected respectively Access 18V power supplys；1 to 5 pin of SW2 is with meeting 18V；The both ends of resistance R18 are respectively connected to 6 and 7 pins of IC2；Capacitance One end access 18V of C4, the other end connects 7 pins of IC2；The resistance R19's and capacitance C5 of the 10 pins connection parallel connection of IC2 Another termination 18V of one end, resistance R19 in parallel and capacitance C5；One end of the 11 pins connection resistance R26 of IC2, resistance 1 pin of the other end connecting triode BG2 of R26；With meeting 18V, the output of 2 pins is returned to school sends control to 3 pins of triode BG1 2 signals, while connect one end of resistance R20；The other end connection 18V power supplys of R20 resistance；The 15 pins output of IC2 performs letter Number；The 16 pins connection 18V power supplys of IC2,8 pins connection 18V.

Further, the MC145026 controls preset transtation mission circuit of returning to school to include IC3 integrated circuits MC145026, IC3 Pin 15 be connected through input/output line with host computer；The pin 1,2,3,4,5,8 of IC3 is with being all connected with 18V；Output control is believed Number 1, output control signal 2, output control signal 3, output control signal 4 connect 6,7,9,10 pins of IC3 respectively；IC3's 1 pin of 14 pins connection diode D1 and 1 pin of diode D2, while one end of resistance R12 is connected, resistance R12's is another One end connects 18V power supplys；The 2 pins connection of diode D1, which is returned to school, sends 1 signal of control, and the 2 pins connection of diode D2 is returned to school Send 2 signals of control；The pin 12 of IC3 connects capacitance C3 one end, and the other end of capacitance C3 connects resistance R10 and R11 respectively One end, the pin 11 of the other end connection IC3 of resistance R10, the pin 13 of the other end connection IC3 of resistance R11；The pin of IC3 16 connection 18V power supplys.

Further, the execution relay drive circuit includes MC1416 Integrated circuit IC 4；The pin 1,2,3,4 of IC4 It is respectively connected to the output control signal 1, output control signal 2, output that MC145027 addressables control preset receiving circuit to send Control signal 3 and output control signal 4；The pin 1,2,3,4 of IC4 connects the one of resistance R22, R23, R24, R25 respectively at the same time End, the other end of resistance R22, R23, R24, R25 are with being all connected with 18V；The pin 7 of IC4 connects the control of MC145027 addressables and holds The execution signal that row receiving circuit is sent, while one end of resistance R21 is also connected with, the other end connection 18V of resistance R21；IC4 13,14,15,16 pins connect the pin 3 of relay KM4, KM3, KM2, KM1 respectively；Relay KM4, KM3, KM2, KM1's Pin 4 is connected with the pin 1 of relay KM5；The pin 2 and 1 of relay KM4, KM3, KM2, KM1 are sequentially connected wire connection terminal 8 to 1 pins of CON8；10 pins of IC4 are connected with 3 pins of relay KM5；2, the 4 of the 9 pins connection relay KM5 of IC4 Pin, and 18V power supplys are connected at the same time.

The beneficial effects of the utility model：

(1) the utility model can meet the control that industry spot carries out equipment, to change the method for operation of equipment, distribution Formula access is flexible for installation, easy to maintain；

(2) the utility model is reduced the complexity of interface and wiring, is increased by three bus distributed access host computers Strong reliability.

Brief description of the drawings

Fig. 1 is the utility model structure diagram.

Fig. 2 is that the MC145027 addressables of the utility model control preset receiving circuit figure.

Fig. 3 is that the MC145026 of the utility model controls preset transtation mission circuit figure of returning to school.

Fig. 4 is that the MC145027 addressables control of the utility model performs receiving circuit figure.

Fig. 5 is the execution relay drive circuit figure of the utility model.

Embodiment

The utility model is described further with specific embodiment below in conjunction with the accompanying drawings.

As shown in Figs. 1-5, a kind of passback with geocoding is returned to school distributed output control circuit, including is all connected to The MC145027 addressables of host computer control preset receiving circuit, MC145026 to control preset transtation mission circuit of returning to school, MC145027 Addressable control performs receiving circuit；The preset transtation mission circuit connection MC145027 addressable controls of returning to school of MC145026 controls are preset Receiving circuit；The preset transtation mission circuit connection MC145027 addressable controls of returning to school of MC145026 controls perform receiving circuit；Also wrap Including while connecting MC145027 addressables controls preset receiving circuit and the control of MC145027 addressables to perform holding for receiving circuit Row relay drive circuit.

In use, MC145027 addressables control preset receiving circuit to receive what host computer issued by input/output line Preset control information, after information matches, controls preset receiving circuit to send four tunnel output control signals, is simultaneously emitted by transmission of returning to school Control 1 signal；The preset transtation mission circuit of returning to school of transmission control 1 signal enabling MC145026 controls of returning to school sends control of returning to school to host computer Preset information processed, while control preset information access to perform relay drive circuit；Host computer verification sends and receives pre- After confidence breath is errorless, execution information is issued；The control of MC145027 addressables performs receiving circuit and receives the matched control of host computer After execution information processed, send and perform signal to the execution relay drive circuit, and send transmission 2 signals of control of returning to school；Institute State after controlling preset transtation mission circuit of returning to school to receive return to school transmission control 1 or transmission 2 signals of control of returning to school, pass through input/output line To four tunnel output control signal of host computer foldback；After the preset information that sends and receives of host computer verification is errorless, execution is issued Information；The preset transtation mission circuit of returning to school of MC145026 controls is sent again under the control for transmission 2 signals of control of returning to school to host computer Return to school and control preset information；Meanwhile relay drive circuit is performed in the case where performing the control of signal, four tunnels are exported by relay Control signal, completes the control of the industrial field device method of operation.

The newest chip for being used for communication partner and using that circuit in the utility model is produced using Motorola；Encode core Piece MC145026 can encode 9 input information (address bit A1~A5, data bit A6/D6~A9/D9)；It is each after coding Data bit is represented with two pulses：" 1 " is encoded to two broad pulses, and " 0 " is encoded to two burst pulses；It is wide that " open circuit " is encoded to one Arteries and veins and a burst pulse are intersected；When TE ends input low level, the data flow after coding starts by D0 Serial outputs；For every 9 Data message, can regard a data word as, and in order to improve the security of communication, codec chip sends two to each data word It is secondary；MC145027 decoders are used for the encoded data stream for receiving MC145026 outputs, when decoder address and received encoder Address (A1~A5) state is identical, and when continuously receiving two groups of identical encoded signals, received data bit, which is latched, to be output to D6~D9 of MC145027, VT end are effective to indicate to receive for high level by low transition；With upper computer software analog encoding Device and decoder send and receive sequential, are returned to school distributed output control circuit to the passback with geocoding by bus Send control command information and receive information of returning to school.

First, host computer (geocoding 00000) is controlled pre- by input/output line to the MC145027 addressables Put receiving circuit (Fig. 2) and send two groups of control preset informations (including address information+preset control information), MC145027 (IC1) 9 Pin receives；When the address information in the control preset information received is with controlling the geocoding in preset receiving circuit to switch (SW1) when matching, and when continuously receiving two groups of identical encoded signals, preset control information by MC145027 (IC1) 12~ 15 pins latch output control signal 1, output control signal 2, output control signal 3, output control signal 4；Meanwhile 11 pins of MC145027 (IC1) are changed into high level from low level, the BG1 conductings of driving triode, return to school transmission 1 signal of control by High level is changed into low level.

Then, described in output control signal 1, output control signal 2, output control signal 3, output control signal 4 enter MC145026 controls 6,7,9,10 pins of MC145026 (IC3) in preset transtation mission circuit of returning to school (Fig. 3)；Due to connecting diode Transmission 1 signal of control of returning to school of D1 is changed into low level from high level, and 14 pins of MC145026 (IC3) are changed into low electricity from high level Flat, then MC145026 (IC3) starts to send information of returning to school preset twice through input/output line through 15 pins that (tetra- roads of 00000+ are defeated Go out control signal state)；Host computer (geocoding 00000) compares after input/output line receives the preset information of returning to school Whether received preset information of returning to school is identical with the preset control information of transmission.

Host computer determine it is errorless after, host computer again by input/output line to the MC145027 addressables control hold Row receiving circuit (Fig. 4) sends two groups of control execution informations (including address information+control execution information)；MC145027(IC2)9 Pin receives, and is switched when the address information in the control execution information received performs the geocoding in receiving circuit with control (SW2) when matching, and when continuously receiving two groups of identical encoded signals, control execution information is drawn by the 15 of MC145027 (IC2) Foot latches output and performs signal；Meanwhile 11 pins of MC145027 (IC2) are changed into high level, driving triode BG2 from low level Conducting, transmission 2 signals of control of returning to school are changed into low level from high level；Due to transmission 2 signals of control of returning to school of connection diode D2 Low level is changed into from high level, 14 pins of MC145026 (IC3) are changed into low level from high level, then another MC145026 (IC3) start to send information of returning to school (tetra- tunnel output control signal shapes of 00000+ preset twice through input/output line through 15 pins State)；Host computer (geocoding 00000) is received again by the preset information of returning to school through input/output line, so that it is determined that control is held Row information issues correctly.

Output control signal 1, output control signal 2, output control signal 3, output control signal 4 enter it is described perform after Electrical apparatus driving circuit (Fig. 5), is sequentially connected 1~4 pin of integrated circuit MC1416 (IC4), output control signal reverse drive Afterwards, 3 pins of 16,15,14,13 pins connection relay KM1~KM4 through integrated circuit MC1416 (IC4) successively, due to after Electric appliance KM5 is not acted at this time, and 2 feet to 1 foot that 18V power supplys cannot pass through relay KM5 are supplied to 4 feet of relay KM1~KM4 Electricity, the temporary transient akinesias of relay KM1~KM4；Only when host computer by input/output line to the MC145027 addressables Control is performed after receiving circuit (Fig. 4) sends control execution information, and it is effective to go out to perform signal, execution signal connection integrated circuit 7 pins of MC1416 (IC4), 10 pins through integrated circuit MC1416 (IC4) connect 3 feet of relay KM5, at this moment relay KM5 is just acted, and at this moment 18V power supplys are just powered by 2 feet to 1 foot of relay KM5 to 4 feet of relay KM1~KM4, at this time Relay KM1~KM4 could be acted, and live operational outfit be controlled by wire connection terminal CON8, so as to change the fortune of field device Row state.

The utility model can meet the control that industry spot carries out equipment, to change the method for operation of equipment；It is distributed Access reaches flexible for installation, easy to maintain, lowers the complexity of interface and wiring, and the mechanism of returning to school also enhances the reliable of system Property.

Claims

The distributed output control circuit 1. a kind of passback with geocoding is returned to school, it is characterised in that on being all connected to The MC145027 addressables of position machine control preset receiving circuit, MC145026 to control preset transtation mission circuit of returning to school, MC145027 can Addressing control performs receiving circuit；The preset transtation mission circuit connection MC145027 addressables of returning to school of MC145026 controls control preset connect Receive circuit；The preset transtation mission circuit connection MC145027 addressable controls of returning to school of MC145026 controls perform receiving circuit；Further include The execution that MC145027 addressables control preset receiving circuit and the control of MC145027 addressables performs receiving circuit is connected at the same time Relay drive circuit.
The distributed output control circuit 2. a kind of passback with geocoding according to claim 1 is returned to school, its feature It is, is connected by three 18V power cords, 18V ground wires, input/output line buses with host computer distribution.
The distributed output control circuit 3. a kind of passback with geocoding according to claim 2 is returned to school, its feature It is, the MC145027 addressables control preset receiving circuit to include MC145027 Integrated circuit IC 1, and the pin 9 of IC1 passes through Input/output line connects host computer；1 to 5 pin of IC1 is sequentially connected 10 to 6 pins of geocoding switch SW1, same to time-division Not Lian Jie resistance R1, R2, R3, R4, R5 one end, the other end of resistance R1, R2, R3, R4, R5 accesses 18V power supplys；The 1 of SW1 To 5 pins with meeting 18V；One end of the resistance R9 and capacitance C2 of the 10 pins connection parallel connection of IC1, resistance R9 in parallel and capacitance Another termination 18V of C2；The both ends of resistance R8 are respectively connected to 6 and 7 pins of IC1；One end access 18V of capacitance C1, separately One end connects 7 pins of IC1；One end of the 11 pins connection resistance R6 of IC1, the 1 of the other end connecting triode BG1 of resistance R6 Pin；With meeting 18V, the output of 2 pins is returned to school sends 1 signal of control to 3 pins of triode BG1, while connects one end of resistance R7； The other end connection 18V power supplys of R7 resistance；15,14,13,12 pins difference output control signal 1, the output control signal of IC1 2nd, output control signal 3 and output control signal 4, the 16 pins connection 18V power supplys of IC1,8 pins connection 18V.
The distributed output control circuit 4. a kind of passback with geocoding according to claim 3 is returned to school, its feature It is, the control of MC145027 addressables, which performs receiving circuit, includes MC145027 Integrated circuit IC 2, and the pin 9 of IC2 is by defeated Enter/output line connection host computer；1 to 5 pin of IC2 is sequentially connected 10 to 6 pins of geocoding switch SW2, at the same time respectively One end of resistance R13, R14, R15, R16, R17 are connected, the other end of resistance R13, R14, R15, R16, R17 access 18V electricity Source；1 to 5 pin of SW2 is with meeting 18V；The both ends of resistance R18 are respectively connected to 6 and 7 pins of IC2；One end access of capacitance C4 18V, the other end connects 7 pins of IC2；One end of the resistance R19 and capacitance C5 of the 10 pins connection parallel connection of IC2, it is in parallel Another termination 18V of resistance R19 and capacitance C5；One end of the 11 pins connection resistance R26 of IC2, the other end of resistance R26 connect Connect 1 pin of triode BG2；With meeting 18V, the output of 2 pins is returned to school sends 2 signals of control to 3 pins of triode BG1, connects at the same time One end of connecting resistance R20；The other end connection 18V power supplys of R20 resistance；The 15 pins output of IC2 performs signal；Draw the 16 of IC2 Foot connects 18V power supplys, and 8 pins are with connecting 18V.
The distributed output control circuit 5. a kind of passback with geocoding according to claim 4 is returned to school, its feature It is, the preset transtation mission circuit of returning to school of MC145026 controls includes the pin 15 of IC3 integrated circuits MC145026, IC3 through defeated Enter/output line is connected with host computer；The pin 1,2,3,4,5,8 of IC3 is with being all connected with 18V；Output control signal 1, output control Signal 2, output control signal 3, output control signal 4 connect 6,7,9,10 pins of IC3 respectively；The 14 pins connection two of IC3 1 pin of pole pipe D1 and 1 pin of diode D2, while one end of resistance R12 is connected, the other end connection 18V electricity of resistance R12 Source；The 2 pins connection of diode D1, which is returned to school, sends 1 signal of control, and the 2 pins connection of diode D2, which is returned to school, sends 2 signals of control； The pin 12 of IC3 connects capacitance C3 one end, and the other end of capacitance C3 connects one end of resistance R10 and R11 respectively, resistance R10's The other end connects the pin 11 of IC3, the pin 13 of the other end connection IC3 of resistance R11；The pin 16 of IC3 connects 18V power supplys.
The distributed output control circuit 6. a kind of passback with geocoding according to claim 5 is returned to school, its feature It is, the execution relay drive circuit includes MC1416 Integrated circuit IC 4；The pin 1,2,3,4 of IC4 is respectively connected to MC145027 addressables control output control signal 1, output control signal 2, the output control signal 3 that preset receiving circuit is sent With output control signal 4；The pin 1,2,3,4 of IC4 connects one end of resistance R22, R23, R24, R25, resistance respectively at the same time The other end of R22, R23, R24, R25 are with being all connected with 18V；The pin 7 of IC4 connects the control of MC145027 addressables and performs reception electricity The execution signal that road is sent, while one end of resistance R21 is also connected with, the other end connection 18V of resistance R21；IC4 13,14, 15th, 16 pins connect the pin 3 of relay KM4, KM3, KM2, KM1 respectively；The pin 4 of relay KM4, KM3, KM2, KM1 are equal It is connected with the pin 1 of relay KM5；The pin 2 and 1 of relay KM4, KM3, KM2, KM1 are sequentially connected the 8 of wire connection terminal CON8 To 1 pin；10 pins of IC4 are connected with 3 pins of relay KM5；2,4 pins of the 9 pins connection relay KM5 of IC4, and Connect 18V power supplys at the same time.