CN106469943B - System for intelligently adopting communication to connect distribution circuit through distributing box based on operation column - Google Patents
System for intelligently adopting communication to connect distribution circuit through distributing box based on operation column Download PDFInfo
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- CN106469943B CN106469943B CN201610781250.2A CN201610781250A CN106469943B CN 106469943 B CN106469943 B CN 106469943B CN 201610781250 A CN201610781250 A CN 201610781250A CN 106469943 B CN106469943 B CN 106469943B
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- 238000004891 communication Methods 0.000 title claims abstract description 67
- 238000002955 isolation Methods 0.000 claims description 36
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 3
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- 230000005540 biological transmission Effects 0.000 description 2
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- 230000006378 damage Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- 238000004092 self-diagnosis Methods 0.000 description 2
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Abstract
The utility model provides a system based on intelligent adoption communication of action bars is through distributing box connection distribution loop, includes the switch board of switch board, the switch board of switch board passes through multicore cable connection intelligent relay switch board, intelligent relay switch board passes through communication and power supply cable connection and sets up the intelligent action bars unit that is used for industrial field control at the industrial field. The operation column indirectly completes the complete information bidirectional exchange function of the original site operation column and the secondary circuit of the distribution room through the communication and intelligent relay distribution box. All functions of controlling and monitoring the state of the corresponding secondary circuit of each operation column on site are realized. The invention can save a great deal of cost and reduce the working time of cabling construction by the same blade.
Description
Technical Field
The invention relates to a field operation column control field electric equipment system through a distribution room. In particular to a system for connecting a distribution circuit through a distribution box based on intelligent adoption of an operation column.
Background
The operation posts are installed beside electric equipment on the industrial site, and each operation post on the site is connected to a corresponding secondary circuit in the power distribution room through an independent multi-core cable to exchange information with the secondary circuit in the power distribution room in a bidirectional manner. In operation, first, the field operation column transmits the button knob state to the corresponding secondary circuit control input end of the distribution room through point-to-point wiring to change the working state of the secondary circuit. The secondary loop of the distribution room then transmits the operating status signals (run, stop, fault, run current, etc.) also via point-to-point connections to the pilot lamp ammeter of the field operating column for the purpose of displaying the device power on site. The result of the secondary loop change is that the on-off state of a contact part arranged on a primary loop (strong current loop) contactor is changed by controlling a coil part of an alternating current contactor arranged on the secondary loop, and the on-off control of the field device is completed through the primary loop. Here, the ac contactor is a key bridge between the primary loop and the secondary loop, the coil portion of the ac contactor is installed in the secondary loop, the contactor contact portion installed in the primary loop is closed when the coil is electrified under the control of the secondary loop, the primary loop supplies power to the field device, and when the secondary loop does not supply power to the contactor coil, the contactor contact of the primary loop is separated to stop the power supply to the field device.
The operation column is an electrical equipment with wide application range, and is used for sending control instructions to a secondary circuit of a corresponding field device in a distribution room in the field and displaying the working state of the secondary circuit in an electrical control system. Particularly, in the occasion that some electric equipment is far away from a power distribution room or the external environment condition is severe, the field monitoring equipment which is more indispensable has stronger stability.
The operation column is internally provided with a universal change-over switch, a button, an ammeter, an indicator light and the like, wherein the change-over switch and the button are used for sending control instructions from the scene to a power distribution loop corresponding to a power distribution room, and the operation column is internally provided with the indicator light and the ammeter which are used for displaying working states sent by a secondary loop corresponding to the field equipment in the power distribution room.
As shown in fig. 1, each pair of contact signals on the button and knob in the operation column 1 is sent to the input end of the secondary circuit corresponding to the operation column 1 in the power distribution room power distribution cabinet 2 by adopting a pair of core wires (only a few contacts can share one) in the independent cable 3. The secondary circuit state signals (on, off, fault, current and the like) corresponding to the operation column 1 are also sent to the signal lamp and the ammeter of the operation column 1 by the power distribution room through a one-to-one independent core wire connection mode in the cable 3. The conventional connection mode is that a plurality of field operation posts 1 complete information exchange with the distribution secondary circuit through as many multi-core cables 3 as the number of operation main. In which an operating column 1 with only basic functions is also completed by a 9-core cable link. If more than one column 1 is present on site, each column 1 requires a separate multi-conductor cable to be routed directly to the distribution room to deliver these signals. This consumes a large amount of multi-core cables while using a large amount of auxiliary materials such as cables, cable trays, overhead brackets, etc., and consumes construction man-hours.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a system which can save cables and reduce construction time and is based on intelligent operation column and adopts communication to connect a distribution circuit through a distribution box.
The technical scheme adopted by the invention is as follows: the utility model provides a system based on intelligent adoption communication of action bars is through distributing box connection distribution loop, includes the switch board of switch board, the switch board of switch board passes through multicore cable connection intelligent relay switch board, intelligent relay switch board passes through communication and power supply cable connection and sets up the intelligent action bars unit that is used for industrial field control at the industrial field.
The intelligent operation column unit comprises N intelligent operation columns corresponding to N secondary loops of the distribution room, the intelligent operation columns comprise a slave CPU controller, an internal communication port of the slave CPU controller is connected with an LCD display unit, an output port of the slave CPU controller is connected with an LED indicator lamp through an output driving circuit, input ports of the slave CPU controller are respectively connected with a switch knob and a switch button, and an external communication port of the slave CPU controller sequentially passes through a slave TTL to 485 circuit, a slave photoelectric isolation module, a slave anti-surge module and a slave wiring terminal to be connected with signals from a host communication line.
The intelligent operation column unit comprises: the slave connection terminal of the first intelligent operation column is connected with the host communication line, and the slave connection terminals of the second intelligent operation column to the N-th operation column are connected with the slave connection terminal of the previous intelligent operation column through the communication line between the operation columns.
The secondary anti-surge module is also connected with a host power supply bus through a secondary power line, and supplies power to the intelligent operation column through a fuse.
And the output port of the slave CPU controller is also connected with a slave alarm horn through an output driving circuit.
The intelligent relay cross-connecting cabinet comprises a host CPU controller, wherein an analog input port of the host CPU controller is correspondingly connected with a signal output end of a current transmitter of each power distribution loop in the power distribution cabinet through each expansion input port; the switching value output port of the host CPU controller is correspondingly connected with the control signal input end of the control unit in each power distribution loop of the power distribution cabinet through each control signal output unit with the same structure; the switching value input port of the host CPU controller is correspondingly connected with the output end of each power distribution loop through each state signal input unit with the same structure; the external communication interface of the host CPU controller is connected with the intelligent operation column unit of the industrial site through the host TTL-to-485 circuit, the host photoelectric isolation module, the host first anti-surge module, the host wiring terminal and the host communication line in sequence; and the internal communication interface of the host CPU controller is connected with the display.
The intelligent control system is characterized by further comprising a power supply circuit, wherein the power supply circuit comprises a second anti-surge module, a UPS power supply and a direct-current voltage stabilizing circuit which are sequentially connected in series, the input end of the second anti-surge module is connected with an external power supply, the output of the direct-current voltage stabilizing circuit is connected with an intelligent operation column unit through a host power supply bus respectively, and the output of the direct-current voltage stabilizing circuit is connected with a host CPU controller, an expansion input port, a control signal output unit and a status signal input unit respectively to supply power.
Each control signal output unit comprises a DO expansion output port, a relay driving circuit and an output isolation relay which are sequentially connected in series, wherein the input end of the DO expansion output port is connected with the switching value output port of the host CPU controller, the output end of the relay driving circuit is connected with the coil input end of the output isolation relay, and the contact of the output isolation relay is connected with the control signal input end of the control unit in the corresponding distribution loop.
The output of the DO expansion output port is also connected with a host alarm horn.
Each state signal input unit comprises a DI expansion input port and an input isolation relay which are sequentially connected, wherein the output end of the DI expansion input port is connected with the switching value input port of the host CPU controller, the DI expansion input port is connected with the output contact of the input isolation relay, and the coil input end of the input isolation relay is correspondingly connected with the output end of the power distribution loop.
The invention is based on the system that the on-site operation column is intelligently connected with the distribution circuit through the distribution box arranged in the distribution room by communication, and the operation column (slave) indirectly completes the complete information bidirectional exchange function of the original on-site operation column and the secondary circuit of the distribution room through the communication and the intelligent relay distribution box (host). All functions of controlling and monitoring the state of the corresponding secondary circuit of each operation column on site are realized. The invention can save a large amount of multicore cables and a large amount of auxiliary materials, cable bridges, overhead brackets and the like, and greatly reduce the working hours of cable laying construction. The button and the knob used in the invention are much less than the original voltage-resistant and current-passing button and knob, the damage to the contact caused by arc discharge during the conversion of the button and knob is avoided, the current transformer is changed into the current transducer, the internal part is provided with multiple isolation settings, the transmission current is reduced to 4-20mA from the original 0-5A transmission current, the personal injury caused by the open circuit of the transformer is reduced, and meanwhile, the current display precision is improved by changing into a digital display ammeter.
Drawings
FIG. 1 is a schematic diagram of a prior art connection structure of an industrial field operation column to a power distribution indoor power distribution cabinet;
FIG. 2 is a schematic diagram of the connection structure of the industrial field operation column and the power distribution indoor power distribution cabinet in the invention;
FIG. 3 is a schematic diagram of the connection structure of the distribution room and the intelligent relay cabinet according to the present invention;
FIG. 4 is a schematic diagram of the intelligent relay cabinet according to the present invention;
fig. 5 is a schematic diagram of the structure of the intelligent operation column unit of the present invention.
In the figure
1, a step of; operation column 2: power distribution cabinet
21: signal output 22 of the current transducer: control signal input end of control unit in power distribution loop
23: output 3 of the power distribution loop: multi-core cable
4: intelligent relay cabinet 41: host CPU controller
425: second anti-surge module 43: UPS power supply
44: direct current voltage stabilizing circuit 45: host power supply bus
411: analog input port 412: expansion input port
413: switching value output port 414: control signal output unit
415: switching value input port 416: status signal input unit
417: external communication interface 418: circuit for converting TTL of host into 485
419: host opto-isolator module 420: first anti-surge module of host
421: host connection terminal 422: host communication line
423: internal communication interface 424: display device
425: host alert horn 4141: DO expansion output circuit
4142: relay driving circuit 4143: output isolation relay
4161: DI extension input circuit 4162: input isolation relay
5: communication and power supply cable 6: intelligent operation column unit
61: intelligent operation column 611: slave CPU controller
612: internal communication port 613: external communication port
614: slave TTL to 485 circuit 615: slave photoelectric isolation module
616: slave anti-surge module 617: slave machine wiring terminal
620: an LCD display unit 621: output port
622: input port 623: output driving circuit
624: LED indicator light 625: switch knob
626: switch button 627: slave power cord
628: fuse 629: slave alarm horn
62: inter-operation column communication line
Detailed Description
The system for intelligently connecting a distribution circuit through an distributing box based on operation column by adopting communication according to the invention is described in detail below with reference to the embodiment and the attached drawings.
The system based on the intelligent operation column adopts communication to connect the distribution circuit through the distributing cabinet, and utilizes a communication bus mode to enable a plurality of intelligent operation columns on site to exchange information with a host computer arranged in the distribution chamber, namely an intelligent relay distributing cabinet in a slave communication mode. The intelligent relay cabinet is correspondingly connected with the control input ports of the state output ports of the power distribution secondary circuits of the power distribution room through the isolation devices by various extended input ports/output ports. The information exchange of the intelligent operation column on site is completed through the coordinated operation of the programs in the host computer and each slave computer, the intelligent relay cabinet is connected to the distribution room through communication, the intelligent relay cabinet decodes the communication information, and the two-way exchange of all information is completed through the point-to-point connection of the expansion port and the corresponding port of the distribution secondary circuit of the same distribution room (the detailed process is described later). Thus, the intelligent operation column (slave) indirectly completes the complete information bidirectional exchange function of the original field intelligent operation column and the secondary circuit of the distribution room through the communication and intelligent relay cross-connecting cabinet (host). All functions of controlling and monitoring the state of the corresponding secondary circuit of each intelligent operation column on site are realized.
As shown in fig. 2, the system for connecting a distribution loop through a distribution box based on operation post intellectualization according to the present invention comprises a distribution cabinet 2 of the distribution room, wherein the distribution cabinet 2 of the distribution room is connected with an intelligent relay distribution cabinet 4 through a multi-core cable 3, and the intelligent relay distribution cabinet 4 is connected with an intelligent operation post unit 6 for industrial field control, which is arranged on an industrial field, through a communication and power supply cable 5.
The intelligent operation column unit 6 includes N intelligent operation columns 61 corresponding to the N secondary circuits of the distribution room, the intelligent operation columns 61 include a slave CPU controller 611,
as shown in fig. 5, the internal communication port 612 of the slave CPU controller 611 is connected to the LCD display unit 620, the output port 621 of the slave CPU controller 611 is connected to the LED indicator 624 via the output driving circuit 623, the input port 622 of the slave CPU controller 611 is respectively connected to the switch knob 625 and the switch button 626, and the external communication port 613 of the slave CPU controller 611 is sequentially connected to the signal coming from the host communication line 422 via the slave TTL-to-485 circuit 614, the slave optoelectronic isolation module 615, the slave anti-surge module 616 and the slave connection terminal 617.
As shown in fig. 5, the invention carries out intelligent improvement on the field operation column, a CPU with a communication port is arranged in the column, and the field operation column is a slave machine of a communication system. The state signals of the buttons and the knobs of the slave are collected through the DI port of the CPU, the indicator lights on the slave are driven through the DO port and the driving circuit, and the liquid crystal display assembly on the slave panel is driven through the internal communication port of the CPU to realize the display of the current (voltage) values (the buttons and the knobs used after improvement are much smaller than the original withstand voltage and the current, and the accuracy of the ammeter is much higher after the ammeter is changed into the digital ammeter). The field slaves can be connected with a newly-added relay cross connecting box arranged behind the power distribution cabinet, namely the host computer through the serial connection of one communication bus, and the information exchange function of the field slaves and the host computer is completed in a master-slave communication mode.
As shown in fig. 5, in the intelligent operation column unit 6: the slave connection terminals 617 of the first intelligent operation column are connected to the master communication line 422, and the slave connection terminals 617 of the second intelligent operation column to the nth operation column are connected to the slave connection terminals 617 of the previous intelligent operation column through the inter-operation column communication line 62.
The slave anti-surge module 616 is also connected to the master power supply bus 45 through a slave power line 627, the ground terminal of the slave anti-surge module 616 is connected to the field ground network, and the slave anti-surge module 616 supplies power to the located intelligent operation column 61 through a fuse 628. The output port 621 of the slave CPU controller 611 is also connected to a slave alarm horn 629 through an output driving circuit 623.
As shown in fig. 3 and 4, the host (intelligent relay cabinet) of the present invention performs the function of performing the up-down operation by the following two configurations. Part 1 is also provided with a CPU with a communication function which is stronger than that of the slave machines in the main machine installed in the power distribution room, and the main machine of the power distribution room can carry out master-slave communication with the main machine through all the field slave machines (intelligent operation posts), and the main machine of the power distribution room can access the field slave machines and the slave machines to exchange information through the 'read slave machine command' and the 'write slave machine command'. In order for the host and the secondary circuit input and output ports corresponding to each intelligent operation column in the power distribution room to exchange information, the host needs to expand a plurality of DO expansion output ports for sending control signals to the secondary circuit input ports through the output isolation devices, and also needs to expand DI expansion input ports and AI expansion input ports for collecting state signals of the secondary circuit output ports through the input isolation devices. The ports are connected to the secondary loop input and output ports corresponding to the operation columns through the drive and isolation circuits in a point-to-point mode (the length of the used multi-core cable is greatly reduced). And (3) completing the exchange of the complete slave machine and the corresponding secondary loop information (number) by means of the setting of the 1 st part and the 2 nd part of the master machine. All functions of the traditional operation column are completed by accessing the field slave machine through the communication bus in sequence without interruption of the host machine in the distribution room and connecting wires of the host machine expansion port and the distribution secondary circuit port corresponding to the slave machine.
As shown in fig. 3 and 4, the intelligent relay distribution cabinet 4 includes a host CPU controller 41, and in this embodiment, a CPU chip with a model number of STC12C5628AD is selected. The analog input port 411 of the host CPU controller 41 is connected to the signal output end 21 of the current transmitter of each distribution loop in the distribution cabinet 2 corresponding to the field operation column through the extension input port 412; the switching value output port 413 of the host CPU controller 41 is connected to the control signal input terminal 22 of the control unit in each distribution circuit of the distribution cabinet 2 corresponding to the field operation column through each control signal output unit 414 having the same structure; the switching value input port 415 of the host CPU 41 is connected to the output end 23 of each power distribution circuit corresponding to the field operation column through each status signal input unit 416 having the same structure; the external communication interface 417 of the host CPU controller 41 is connected to the intelligent operation column unit 6 of the industrial field sequentially through the host TTL-to-485 circuit 418, the host photoelectric isolation module 419, the host first anti-surge module 420, the host connection terminal 421 and the host communication line 422; the internal communication interface 423 of the host CPU controller 41 is connected to the display 424.
As shown in fig. 4, a power supply circuit is further provided, and the power supply circuit comprises a second anti-surge module 42, a UPS power supply 43 and a dc voltage stabilizing circuit 44 which are sequentially connected, wherein an input end of the second anti-surge module 42 is connected with a grounding end of an external power supply anti-surge module and is connected with a distribution room grounding network, and a 5V output end of the dc voltage stabilizing circuit 44 is connected with the intelligent operation column unit 6 through a host power supply bus 45 and is connected with a host CPU controller 41, an extension input port 412, a control signal output unit 414 and a status signal input unit 416 for power supply. The 12V output of the dc voltage regulator 44 supplies power to the coil loop of the input isolation relay 4162 of the output isolation relay 4143, respectively.
Each control signal output unit 414 includes a DO expansion output circuit 4141, a relay driving circuit 4142, and an output isolation relay 4143, which are sequentially connected in series, wherein an input end of the DO expansion output circuit 4141 is connected to the switching value output port 413 of the host CPU controller 41, an output end of the relay driving circuit 4142 is connected to a coil input end of the output isolation relay 4143, a contact of the output isolation relay 4143 is connected to the control signal input end 22 of the control unit in the corresponding distribution circuit, and an output of the DO expansion output circuit 4141 is also connected to the host alarm horn 425.
Each of the status signal input units 416 includes a DI extension input circuit 4161 and an input isolation relay 4162 connected in sequence, wherein an output end of the DI extension input circuit 4161 is connected to the switching value input port 415 of the host CPU controller 41, the DI extension input circuit 4161 is connected to an output contact of the input isolation relay 4162, and a coil input end of the isolation relay 4162 is correspondingly connected to the output end 23 of the distribution circuit.
Each slave has independent address codes, the slave continuously collects the states of the knob and the button through the DI port in idle time without host access, and when the state is found to be changed, the slave immediately updates the content of the data field waiting to respond to the read command to the host after the slave CPU codes (the data field always represents the button, and the knob data is in the latest state).
The host computer continuously sends a command of reading the slave machine and a command of writing the slave machine to the appointed slave machine in sequence through a program, and the host computer and the slave machine finish all bidirectional information exchange processes of a certain appointed intelligent operation column on site through the host computer and a secondary power distribution circuit corresponding to the slave machine in a power distribution room according to the following brief description of main 7 steps (without additional programs including self diagnosis, verification, error processing and the like).
1) The host actively issues a "read slave" command to the slave at the specified address.
2) When a slave receives a read command sent by the host, the slave button and the knob state (according to a preset protocol) collected at the time are immediately returned to the host as the response data of the host read slave command.
3) After receiving the reply information from the communication slave machine, the host machine decodes the reply information and then sends the reply information to the secondary circuit control input port corresponding to the slave machine point to point through the extended DO port and the drive isolation port, and the secondary circuit automatically modifies the working state of the secondary circuit according to the button and knob information of the slave machine. And finishing the control of the appointed slave machine on the working state of the corresponding secondary circuit.
4) And then the internal program of the host CPU collects the new state of each output port corresponding to the secondary loop state of the slave through the extended DI isolation relay port, and the collected state information is encoded by the host CPU and then arranged in the data field of the command of the host writing slave. Meanwhile, the 4-20mA signal of the loop current (voltage) transmitter corresponding to the slave is collected through the AI port, and is converted into digital quantity through an analog-digital conversion circuit, and the digital quantity is also arranged into a data field of a command of the slave written by the master through the encoding of the CPU of the master.
5) The host sends a command of writing the slave to the appointed slave, and the secondary loop information acquired in the 4 th step through DI and AI ports is arranged in the data field one of the writing command and is sent to the slave.
6) After receiving the command of writing the slave machine from the host machine, the slave machine decodes the data field information sent by the host machine through the internal program (according to a preset protocol) of the slave machine CPU and then sends the decoded data field information to a corresponding DO port and an internal communication port, wherein the DO port is driven to drive the LED indicator lamp of the slave machine panel, and the internal communication port is driven to drive the liquid crystal character display module on the slave machine panel. And the secondary loop working state and the equipment running current of the secondary loop are monitored by the secondary machine.
7) The host computer completes complete bidirectional information exchange between a designated slave computer and the power distribution secondary circuit corresponding to the slave computer by the above 6 steps. And then the host computer repeatedly performs the step 1) to access the next slave computer after adjusting the address of the access slave computer. The master machine can continuously and circularly access all the field slaves to complete all the bidirectional information exchange between each slave machine on the field and the secondary circuit corresponding to the slave machine in the corresponding distribution room.
All functions of controlling and monitoring the secondary circuit by the traditional operation column are completed through the 7 steps.
The internal programs of the intelligent relay cabinet and the intelligent operation column are provided with a startup and reset diagnosis function, such as the intelligent relay cabinet or the slave level finds that the self-diagnosis is problematic or that errors such as check code errors or communication connection overtime occur in communication, and the like, can display error codes and sound alarms through the liquid crystal screen. Thus, the fault can be conveniently and quickly repaired.
The intelligent relay cross-connecting cabinet is provided with a plurality of basic expansion interfaces (the number of the general fewer intelligent operation columns can be met), meanwhile, the intelligent relay cross-connecting cabinet adopts a bus plate form to expand port modules with various different performances according to the number of the intelligent operation columns on site by a building block type plugging method, and the working conditions of more intelligent operation columns on site can be met.
Claims (8)
1. The system for intelligently connecting a distribution loop through a distribution box based on operation posts comprises a distribution cabinet (2) of the distribution room, and is characterized in that the distribution cabinet (2) of the distribution room is connected with an intelligent relay distribution cabinet (4) through a multi-core cable (3), and the intelligent relay distribution cabinet (4) is connected with an intelligent operation post unit (6) which is arranged on an industrial field and used for industrial field control through a communication and power supply cable (5); wherein:
the intelligent operation column unit (6) comprises N intelligent operation columns (61) corresponding to N secondary loops of the distribution room, the intelligent operation column (61) comprises a slave CPU controller (611), an internal communication port (612) of the slave CPU controller (611) is connected with an LCD display unit (620), an output port (621) of the slave CPU controller (611) is connected with an LED indicator lamp (624) through an output driving circuit (623), an input port (622) of the slave CPU controller (611) is respectively connected with a switch knob (625) and a switch button (626), and an external communication port (613) of the slave CPU controller (611) sequentially passes through a slave TTL (transistor-transistor) to-485 circuit (614), a slave photoelectric isolation module (615), a slave anti-surge module (616) and a slave wiring terminal (617) to be connected with signals from a master communication line (422);
the intelligent relay cross cabinet (4) comprises a host CPU controller (41), wherein an analog input port (411) of the host CPU controller (41) is correspondingly connected with a signal output end (21) of a current transmitter of each power distribution loop in the power distribution cabinet (2) through each expansion input port (412); the switching value output port (413) of the host CPU controller (41) is correspondingly connected with the control signal input end (22) of the control unit in each power distribution loop of the power distribution cabinet (2) through each control signal output unit (414) with the same structure; the switching value input port (415) of the host CPU controller (41) is correspondingly connected with the output end (23) of each power distribution loop through each state signal input unit (416) with the same structure; an external communication interface (417) of the host CPU controller (41) is connected with an intelligent operation column unit (6) of an industrial field through a host TTL (transistor-transistor logic) to 485 circuit (418), a host photoelectric isolation module (419), a host first anti-surge module (420), a host wiring terminal (421) and a host communication line (422) in sequence; an internal communication interface (423) of the host CPU controller (41) is connected with a display (424).
2. The system for connecting a distribution circuit via an interface box based on intelligent operation column according to claim 1, wherein, in the intelligent operation column unit (6): the slave connection terminals (617) of the first intelligent operation column are connected with the master communication line (422), and the slave connection terminals (617) of the second intelligent operation column to the Nth operation column are connected with the slave connection terminals (617) of the previous intelligent operation column through the inter-operation column communication line (62).
3. The intelligent operation column-based system for connecting a distribution circuit through a distribution box by adopting communication according to claim 1, wherein the slave anti-surge module (616) is further connected with a master power supply bus (45) through a slave power line (627), and the slave anti-surge module (616) supplies power to the intelligent operation column (61) through a fuse (628).
4. The intelligent operation column-based system for connecting a distribution circuit through an interface box by adopting communication according to claim 1, wherein an output port (621) of the slave CPU controller (611) is also connected with a slave alarm horn (629) through an output driving circuit (623).
5. The intelligent operation column-based system adopting communication to connect a distribution loop through a distribution box according to claim 1, further comprising a power supply circuit, wherein the system comprises a second anti-surge module (42), a UPS (uninterrupted power supply) and a direct-current voltage stabilizing circuit (44) which are sequentially connected in series, wherein the input end of the second anti-surge module (42) is connected with an external power supply, and the output of the direct-current voltage stabilizing circuit (44) is respectively connected with an intelligent operation column unit (6) through a host power supply bus (45) and is respectively connected with a host CPU (central processing unit) controller (41), an expansion input port (412), a control signal output unit (414) and a status signal input unit (416) for power supply.
6. The intelligent operation column-based system for connecting a distribution circuit through a distribution box according to claim 1, wherein each control signal output unit (414) comprises a DO expansion output port (4141), a relay driving circuit (4142) and an output isolation relay (4143) which are sequentially connected in series, wherein the input end of the DO expansion output port (4141) is connected with a switching value output port (413) of the host CPU controller (41), the output end of the relay driving circuit (4142) is connected with the coil input end of the output isolation relay (4143), and the contact point of the output isolation relay (4143) is connected with the control signal input end (22) of the control unit in the corresponding distribution circuit.
7. The system for intelligent access to electrical distribution circuitry via an interface cabinet based on the operator column of claim 6, wherein the output of the DO expansion outlet (4141) is further coupled to a host alarm horn (425).
8. The intelligent operation column-based system for connecting a distribution circuit through a distribution box by communication according to claim 1, wherein each state signal input unit (416) comprises a DI expansion input port (4161) and an input isolation relay (4162) which are sequentially connected, wherein an output end of the DI expansion input port (4161) is connected with a switching value input port (415) of the host CPU controller (41), the DI expansion input port (4161) is connected with an output contact of the input isolation relay (4162), and a coil input end of the input isolation relay (4162) is correspondingly connected with an output end (23) of the distribution circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610781250.2A CN106469943B (en) | 2016-08-31 | 2016-08-31 | System for intelligently adopting communication to connect distribution circuit through distributing box based on operation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610781250.2A CN106469943B (en) | 2016-08-31 | 2016-08-31 | System for intelligently adopting communication to connect distribution circuit through distributing box based on operation column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106469943A CN106469943A (en) | 2017-03-01 |
| CN106469943B true CN106469943B (en) | 2023-08-08 |
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| CN107634581A (en) * | 2017-10-25 | 2018-01-26 | 中国恩菲工程技术有限公司 | Intelligent distribution system |
| CN107656479A (en) * | 2017-10-25 | 2018-02-02 | 中国恩菲工程技术有限公司 | Handheld terminal and power distribution control method |
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