CN117149687A - Signal transfer guarantee device - Google Patents

Signal transfer guarantee device Download PDF

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Publication number
CN117149687A
CN117149687A CN202311135619.9A CN202311135619A CN117149687A CN 117149687 A CN117149687 A CN 117149687A CN 202311135619 A CN202311135619 A CN 202311135619A CN 117149687 A CN117149687 A CN 117149687A
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processor
signal
communication interface
sub
board
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CN202311135619.9A
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CN117149687B (en
Inventor
谈领华
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Zhejiang Dongkai Semiconductor Technology Co ltd
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Zhejiang Dongkai Semiconductor Technology Co ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
    • G06F13/4286—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus using a handshaking protocol, e.g. RS232C link
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
    • G06F15/163—Interprocessor communication
    • G06F15/17—Interprocessor communication using an input/output type connection, e.g. channel, I/O port

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Power Sources (AREA)

Abstract

The application relates to the technical field of signal transmission, and solves the problems of high cost and large implementation workload required by transmitting key signals between an IO disc and liquid supply equipment through a dry contact signal in the prior art.

Description

Signal transfer guarantee device
Technical Field
The application relates to the technical field of signal transmission, in particular to a signal transfer guaranteeing device.
Background
At present, in a chemical supply system, an ethernet is generally adopted to perform communication between a liquid supply device (liquid supply source) and an IO disc (client station signal collection), and due to possible network faults, an electric wire is used to further make a guarantee, that is, when the ethernet breaks down, key signals can be transmitted in a mode that the electric wire is pulled through a dry contact, the key signals are transmitted to a liquid demand signal of the liquid supply device by the IO disc, a leakage signal of the liquid supply device by the IO disc, and a standby signal of the liquid supply device by the IO disc.
Because many liquid supply equipment corresponds many IO dish, every IO dish all needs to pull cable to liquid supply equipment, and then because some liquid supply equipment is multi-outlet (say 3 outlets), then "want liquid demand" signal have 3 groups, it is also have 3 groups to leak "signal, add standby signal, so just need transmit through nine way signal altogether, make every IO dish to liquid supply equipment need pull 9 heart yearns cable to transmit the dry contact signal at least, take 6 IO dishes, 9 liquid supply equipment as an example (solar project can conventional configuration), every IO dish to liquid supply equipment need pull 9 cables altogether, 6 IO dishes need pull 54 cables altogether, average every cable's length is 350 meters, then need 18900 meters cable, not only cable cost is high, wiring difficulty, moreover, need artifical act as go-between and wiring, the implementation work load is huge and heavy.
Disclosure of Invention
The application aims to solve the problems of high cost and large implementation workload required by transmitting key signals between an IO disc and liquid supply equipment through a dry access point signal in the prior art, and provides a signal transfer guaranteeing device.
The application provides a signal transfer guaranteeing device, which comprises a main board, a plurality of first sub-boards and a plurality of second sub-boards, wherein:
the motherboard comprises a first processor, a first communication interface and a second communication interface, wherein the first communication interface and the second communication interface are electrically connected with the first processor;
the first sub-board comprises a third communication interface and a second processor, and the third communication interface is connected in parallel and then connected with the first communication interface through a first signal line;
the second sub-board comprises a fourth communication interface and a third processor, and the fourth communication interface is connected with the second communication interface through a second signal line after being connected in parallel.
Furthermore, the first sub-boards are respectively provided with different dialing codes, the second sub-boards are also provided with different dialing codes, the dialing codes are used for identifying signals during transmission, and the sources and the directions of the signals can be distinguished through the dialing codes.
Further, the motherboard further comprises a first power supply interface, the first power supply interface is electrically connected with the first processor, and power is supplied to the first processor through the first power supply interface.
Further, the first sub-board further includes a second power supply interface, and the second power supply interface is electrically connected with the second processor, and supplies power to the second processor through the second power supply interface.
Further, the second sub-board further includes a third power supply interface, and the third power supply interface is electrically connected with the third processor, and supplies power to the third processor through the third power supply interface.
Further, the second processor includes:
the first input module is used for reading the switching state of the PLC output end in the IO disk, converting the switching state of the PLC output end in the IO disk into a first digital signal and transmitting the first digital signal to the first processor;
the first output module is used for receiving the second digital signal sent by the first processor, converting the second digital signal into a second dry node signal, and controlling the switch state of the input end of the PLC in the IO disk according to the second dry node signal.
Further, the third processor includes:
the second input module is used for reading the switch state of the PLC output end in the liquid supply equipment, converting the switch state of the PLC output end in the liquid supply equipment into a second digital signal and sending the second digital signal to the first processor;
the second output module is used for receiving the first digital signal sent by the first processor, converting the first digital signal into a first dry node signal, and controlling the switch state of the PLC input end in the liquid supply equipment according to the first dry node signal.
Further, the first processor includes:
the first signal processing module is used for sending the first digital signal output by the second processor to the third processor;
and the second signal processing module is used for sending the second digital signal output by the third processor to the second processor.
Further, the first communication interface, the second communication interface, the third communication interface and the fourth communication interface are all RS485 communication interfaces.
Furthermore, the first signal wire and the second signal wire are copper core polyvinyl chloride insulated polyvinyl chloride sheath flexible cables.
The application has the following beneficial effects: according to the application, the dry contact signals of the IO disc and the liquid supply equipment are collected in a dry contact mode, the dry contact signals are coded and converted into digital signals, and then the signal transmission between the IO disc and the liquid supply equipment can be realized through a two-core cable, so that the cable cost required by implementation and the engineering quantity and the construction difficulty of construction can be greatly reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a signal relay ensuring apparatus according to an embodiment of the present application;
fig. 2 is a block diagram of a motherboard in a signal transfer ensuring apparatus according to an embodiment of the present application;
fig. 3 is a block diagram of a first sub-board in the signal relay protection apparatus according to the embodiment of the present application;
fig. 4 is a block diagram of a second sub board in the signal relay guaranteeing device according to the embodiment of the present application;
FIG. 5 is a schematic diagram of signal transmission among a liquid use device, an IO disk, and a liquid supply device;
FIG. 6 is a block diagram of a signal transfer ensuring device according to an embodiment of the present application, in which three IO disks and three liquid supply devices are connected;
fig. 7 is a schematic diagram of connection between a PLC input terminal of an IO disc and a first output module in the signal relay protection apparatus according to the embodiment of the present application;
fig. 8 is a schematic diagram of connection between a PLC output terminal of an IO disc and a first input module in the signal relay protection apparatus according to the embodiment of the present application;
fig. 9 is a schematic diagram of connection between a PLC input terminal and a second output module of a liquid supply apparatus in a signal relay protection device according to an embodiment of the present application;
fig. 10 is a schematic diagram of connection between a PLC output terminal of a liquid supply apparatus and a second input module in the signal relay protection apparatus according to the embodiment of the present application.
Reference numerals:
100. a motherboard; 101. a first processor; 1011. a first signal processing module; 1012. a second signal processing module; 102. a first communication interface; 103. a second communication interface; 104. a first power supply interface; 200. a first sub-board; 201. a second processor; 2011. a first input module; 2012. a first output module; 202. a third communication interface; 203. a second power supply interface; 300. a second sub-board; 301. a third processor; 3011. a second input module; 3012. a second output module; 302. a fourth communication interface; 303. and a third power supply interface.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Examples
The signal transfer guaranteeing device according to the embodiment of the present application, as shown in fig. 1, specifically includes:
as shown in fig. 2, a motherboard 100 is shown, wherein the motherboard 100 includes a first processor 101, a first communication interface 102, and a second communication interface 103, wherein the first communication interface 102 and the second communication interface 103 are electrically connected to the first processor 101;
the motherboard 100 further includes a first power supply interface 104, where the first power supply interface 104 is electrically connected to the first processor 101, and power can be supplied to the motherboard 100 and the first processor 101 through the first power supply interface 104.
Specifically, the first processor 101 includes:
a first signal processing module 1011 for transmitting the first digital signal output from the second processor 201 to the third processor 301;
the second signal processing module 1012 is configured to send the second digital signal output by the third processor 301 to the second processor 201.
As shown in fig. 3, the first sub-board 200 is shown as a first sub-board 200, the first sub-board 200 includes a third communication interface 202 and a second processor 201, the third communication interface 202 is connected in parallel and then connected to the first communication interface 102 through a first signal line, where the number of the first sub-board 200 is consistent with that of the IO discs, that is, one first sub-board 200 corresponds to one IO disc, the first sub-board 200 has different dialing codes, signals of the different IO discs are distinguished by the dialing codes, the first sub-board 200 further includes a second power supply interface 203, the second power supply interface 203 is electrically connected with the second processor 201, and power is supplied to the second processor 201 through the second power supply interface 203.
Specifically, the second processor 201 includes:
the first input module 2011 is configured to read a switch state of the PLC output terminal in the IO disc, convert the switch state of the PLC output terminal in the IO disc into a first digital signal, and send the first digital signal to the first processor 101;
the first output module 2012 is configured to receive the second digital signal sent by the first processor 101, convert the second digital signal to a second dry node signal, and control a switch state of an input end of the PLC in the IO disc according to the second dry node signal.
In a further embodiment, the first communication interface 102, the second communication interface 103, the third communication interface 202 and the fourth communication interface 302 are RS485 communication interfaces, and the first signal line and the second signal line are copper core pvc insulated pvc sheath flexible cables, for example: the first signal line and the second signal line may have a model number RVVP 2 x 0.75mm2.
As shown in fig. 4, the second sub-board 300 includes a fourth communication interface 302 and a third processor 301, the fourth communication interface 302 is connected in parallel and then connected to the second communication interface 103 through a second signal line, where the number of the second sub-boards 300 is identical to that of the liquid supply devices, the number of the second sub-boards 300 is also identical to that of the first sub-boards 200, and one first sub-board 200 corresponds to one second sub-board 300, and the first sub-boards 200 and the second sub-boards 300 are in a one-to-one correspondence through a dial-up code, so that signals of different liquid supply devices are distinguished by the dial-up code, the second sub-board 300 further includes a third power supply interface 303, and the third power supply interface 303 is electrically connected to the third processor 301 and supplies power to the third processor 301 through the third power supply interface 303.
Specifically, the third processor 301 includes:
the second input module 3011 is configured to read a switch state of the PLC output terminal in the liquid supply apparatus, convert the switch state of the PLC output terminal in the liquid supply apparatus into a second digital signal, and send the second digital signal to the first processor 101;
the second output module 3012 is configured to receive the first digital signal sent by the first processor 101, convert the first digital signal to a first dry node signal, and control a switch state of a PLC input terminal in the liquid supply device according to the first dry node signal.
In a specific embodiment, as shown in fig. 5, the liquid supply system generally includes three core parts of a liquid using device, an IO disc and a liquid supplying device:
for the liquid using equipment, the control system of the liquid using equipment comprises an input area and an output area, wherein the input area is used for receiving a standby signal of an IO disk, the output area is used for sending a liquid needing signal to the IO disk, and if the input area is used for receiving the standby signal of the IO disk and the liquid using equipment lacks liquid, a D01 relay is automatically electrified, and a contact point of the D01 relay is closed; if the input area does not receive the standby signal of the IO disk or the liquid of the device is sufficient, the D01 relay is automatically powered off, and the contact point of the D01 relay is disconnected.
For the IO disc, the PLC of the IO disc is used for receiving a 'liquid leakage signal' of the VMB (namely a valve box), a 'standby signal' of the liquid supply device and a 'liquid demand signal' of the liquid use device, wherein if the PLC receives the 'standby signal' of the liquid supply device, an R01 relay is automatically electrified, and a contact point of the R01 relay is closed; if the PLC receives a leakage signal of the VMB, the LK01 relay is automatically electrified, and the LK01 relay contact point is closed; if the PLC receives a liquid-requiring signal of the liquid-using equipment, the D01 relay is automatically electrified, and the contact point of the D01 relay is closed.
For the liquid supply equipment, the PLC of the liquid supply equipment is used for receiving a liquid-requiring signal and a liquid-leaking signal of the IO disk, wherein the PLC receives the liquid-requiring signal of the IO disk and the liquid supply equipment has liquid supply capability, and then an equipment pump valve is started to pump liquid to the corresponding liquid application equipment; if the PLC receives a leakage signal of the IO disc, stopping liquid supply; if the liquid supply device is in a liquid supply state, the R01 relay is automatically electrified, and the contact point of the R01 relay is closed.
As shown in fig. 6, it is assumed that there are 3 IO disks (1 for the first sub-board 200 connected to the IO disk 1, 2 for the first sub-board 200 connected to the IO disk 2, 3 for the first sub-board 200 connected to the IO disk 3) and 3 liquid supply devices corresponding to the IO disks (1 for the second sub-board 300 connected to the liquid supply device 1, 2 for the second sub-board 300 connected to the liquid supply device 2, and 3 for the second sub-board 300 connected to the liquid supply device 3).
As shown in fig. 3, 7 and 8, three switches are provided between the input end of the PLC in the IO disc and the first output module 2012 of the second processor 201: S01-S03, eighteen relays and relay switches are arranged between the output end of the PLC in the IO disk and the first input module 2011 of the second processor 201, wherein the relay switches are respectively: C1R1, C1R2, C1R3, C1LK1, C1LK2, C1LK3, C2R1, C2R2, C2R3, C2LK1, C2LK2, C2LK3, C3R1, C3R2, C3R3, C3LK1, C3LK2, C3LK3, wherein the eighteen relay switches are connected in parallel and each switch is connected in series with an electronic component, wherein the electronic components are respectively: K1-K18, wherein the electronic component is used for making the second processor 201 determine the on/off of the circuit where the second processor is located through the electronic component, the electronic component may be a resistor component or a light emitting component, etc., the second processor 201 determines the on/off states of the eighteen switches by reading the on states of the K1-K8 and converts the on/off states into the first digital signal, the second processor 201 can send the first digital signal to the first processor 101 through the third communication interface 202, and the second processor 201 can also control the on/off states of the switches S01-S03 according to the received second digital signal sent by the first processor 101.
As shown in fig. 4, 9 and 10, six switches CR1, CR2, CR3, LK1, LK2 and LK3 are respectively disposed between the PLC input terminal of the liquid supply apparatus and the processor of the second sub-board 300, a relay R01 and a relay switch R01 are disposed between the PLC output terminal of the liquid supply apparatus and the processor of the second sub-board 300, wherein the relay switch R01 is connected in series with a power supply and an electronic component K1, and the electronic component also has the function of letting the third processor 301 determine the on/off state of the circuit through the electronic component, which may be a resistor element or a light emitting component, etc., wherein the third processor 301 determines the on/off state of the R01 by reading the on state of the K1 and converts the on/off state into a second digital signal, the third processor 301 is capable of transmitting the second digital signal to the first processor 101 through the fourth communication interface 302, and the third processor 301 is further capable of controlling the on/off states of the switches CR1, CR2, CR3, CR1, LK2, and LK3 according to the received first digital signal transmitted by the first processor 101.
As shown in fig. 6, the first processor 101 can receive the first digital signal sent by the second processor 201 and send the first digital signal to the third processor 301 according to the dialing code after the editing process, and the first processor 101 can also receive the second digital signal sent by the third processor 301 and send the second digital signal to the second processor 201 according to the dialing code after the editing process.
The control logic between the first sub-board 200 and the second sub-board 300 is:
1. closing a contact of any device C1R1 of the IO disc 1-3, and closing a contact CR1 with the dialing code of 1 of the second sub-board 300;
2. closing the contact of any device C1R2 of the IO disc 1-3, and closing the contact of the CR2 with the dialing code of 1 of the second sub-board 300;
3. closing the contact of any device C1R3 of the IO disc 1-3, and closing the contact of the CR3 with the dialing code of 1 of the second sub-board 300;
4. any device C1LK1 contact of IO disk 1-3 is closed, then LK1 contact of the second sub-board 300 dial 1 is closed;
5. any device C1LK2 contact of IO disk 1-3 is closed, then LK2 contact of second sub-board 300 dial 1 is closed;
6. any device C1LK3 contact of IO disk 1-3 is closed, then LK3 contact of the second sub-board 300 dial 1 is closed;
7. the R01 contacts of the second sub-board 300 with the dialing code of 1 are closed, and then all the contacts of the first sub-board 200S01 are closed;
8. closing a C2R1 contact of any device of the IO disc 1-3, and closing a CR1 contact of which the dial number of the second sub-board 300 is 2;
9. closing a C2R2 contact of any device of the IO disk 1-3, and closing a CR2 contact of which the dial number of the second sub-board 300 is 2;
10. closing a C2R3 contact of any device of the IO disk 1-3, and closing a CR3 contact of which the dial number of the second sub-board 300 is 2;
11. closing the contact of any device C2LK1 of the IO disc 1-3, and closing the contact of LK1 with the dialing code of 2 of the second sub-machine board 300;
12. closing a C2LK2 contact of any device of the IO disk 1-3, and closing the LK2 contact of which the dialing code of the second sub-machine board 300 is 2;
13. closing the contact of any device C2LK3 of the IO disc 1-3, and closing the contact of LK3 with the dialing code of 2 of the second sub-machine board 300;
14. the R01 contacts of the second sub-board 300 with the dialing number of 2 are closed, and then all the contacts of the first sub-board 200S02 are closed;
15. closing a C3R1 contact of any device of the IO disc 1-3, and closing a CR1 contact of which the dial number of the second sub-board 300 is 3;
16. closing a C3R2 contact of any device of the IO disk 1-3, and closing a CR2 contact of which the dial number of the second sub-board 300 is 3;
17. closing a C3R3 contact of any device of the IO disk 1-3, and closing a CR3 contact of which the dial number of the second sub-board 300 is 3;
18. closing the contact of any device C3LK1 of the IO disc 1-3, and closing the contact of LK1 with the dialing code of 3 of the second sub-machine board 300;
19. closing a contact of any device C3LK2 of the IO disk 1-3, and closing a contact of LK2 with the dialing code of 3 of the second sub-machine board 300;
20. closing a C3LK3 contact of any device of the IO disk 1-3, and closing the LK3 contact of the second sub-board 300 with 3 dial;
21. the R01 contacts of the second sub-board 300, which are dialed to 3, are closed, and the S03 contacts of all the first sub-boards 200 are closed.
It should be noted that, the liquid supply device is multi-outlet (for example, 3 outlets), then the liquid demand signal has 3 groups, the leakage signal has 3 groups, and then the standby signal is added, so that each IO disc is used for pulling at least 9 core cables to the liquid supply device, taking 3 IO discs and 3 liquid supply devices as examples, each IO disc is used for pulling 3 cables to the liquid supply device, the total number of 3 IO discs is 9 cables, and each cable needs 3150 meters on average, but the cable between the IO disc and the main board 100 is added with the cable between the main board 100 and the liquid supply device only by adopting a single 2 core cable, and the total length of the cable required by adding the first sub-board 200 in parallel connection and the second sub-board 300 in parallel connection is not more than 500 meters, so that the dry joint signals of the IO discs and the liquid supply device end can be collected by a dry joint mode, the dry joint signals are coded and converted into digital signals, and then the cable between the IO discs and the liquid supply device can be realized by adopting a cable with two cores, thereby greatly reducing the construction difficulty and the construction cost.
The above is only a preferred embodiment of the present application; the scope of the application is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present application, and the technical solution and the improvement thereof are all covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a signal transfer guarantee device which characterized in that, includes the motherboard, a plurality of first son board and a plurality of second son board, wherein:
the motherboard comprises a first processor, a first communication interface and a second communication interface, wherein the first communication interface and the second communication interface are electrically connected with the first processor;
the first sub-board comprises a third communication interface and a second processor, and the third communication interface is connected in parallel and then connected with the first communication interface through a first signal line;
the second sub-board comprises a fourth communication interface and a third processor, and the fourth communication interface is connected with the second communication interface through a second signal line after being connected in parallel.
2. The signal relay protection device according to claim 1, wherein the first sub-boards have different dialing codes, respectively, and the second sub-boards also have different dialing codes, and the dialing codes are used for identifying signals during transmission.
3. The signal relay protection device of claim 1, wherein the motherboard further comprises a first power interface, the first power interface being electrically connected to the first processor.
4. The signal relay protection device of claim 1, wherein the first sub-board further comprises a second power interface, the second power interface being electrically connected to the second processor.
5. The signal relay protection device of claim 1, wherein the second sub-board further comprises a third power supply interface, and the third power supply interface is electrically connected to the third processor.
6. The signal relay protection device of claim 1, wherein the second processor comprises:
the first input module is used for reading the switching state of the PLC output end in the IO disk, converting the switching state of the PLC output end in the IO disk into a first digital signal and transmitting the first digital signal to the first processor;
the first output module is used for receiving the second digital signal sent by the first processor, converting the second digital signal into a second dry node signal, and controlling the switch state of the input end of the PLC in the IO disk according to the second dry node signal.
7. The signal relay protection device of claim 6, wherein the third processor comprises:
the second input module is used for reading the switch state of the PLC output end in the liquid supply equipment, converting the switch state of the PLC output end in the liquid supply equipment into a second digital signal and sending the second digital signal to the first processor;
the second output module is used for receiving the first digital signal sent by the first processor, converting the first digital signal into a first dry node signal, and controlling the switch state of the PLC input end in the liquid supply equipment according to the first dry node signal.
8. The signal relay protection device of claim 7, wherein the first processor comprises:
the first signal processing module is used for sending the first digital signal output by the second processor to the third processor;
and the second signal processing module is used for sending the second digital signal output by the third processor to the second processor.
9. The signal relay protection device according to any one of claims 1 to 8, wherein the first communication interface, the second communication interface, the third communication interface, and the fourth communication interface are RS485 communication interfaces.
10. The signal relay protection device of any one of claims 1-8, wherein the first signal line and the second signal line are copper core pvc insulated pvc jacketed flexible cables.
CN202311135619.9A 2023-09-05 2023-09-05 Signal transfer guarantee device Active CN117149687B (en)

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