CN113721504A - Multi-module linkage control circuit and control system - Google Patents
Multi-module linkage control circuit and control system Download PDFInfo
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
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- G05B2219/24215—Scada supervisory control and data acquisition
Abstract
The invention discloses a multi-module linkage control circuit and a control system, wherein the multi-module linkage control circuit comprises a plurality of control modules and a plurality of communication circuits which are arranged in one-to-one correspondence with the control modules; the communication circuits are connected in series, each communication circuit is electrically connected with the corresponding control module, and each communication circuit is used for receiving the control signal and/or the data information output by the corresponding control module and sending the control signal and/or the data information to the adjacent communication circuit and is used for receiving the control signal and/or the data information sent by the adjacent communication circuit and outputting the control signal and/or the data information to the corresponding control module. The multi-module linkage control circuit disclosed by the invention solves the technical problem that the reliable linkage control among a plurality of control modules is difficult to realize at present.
Description
Technical Field
The invention belongs to the technical field of electronics, and particularly relates to a multi-module linkage control circuit and a multi-module linkage control system.
Background
The normal operation of the automation equipment can not be realized without the cooperation of all the parts, and the linkage control between all the control modules for managing different parts is involved. For large-scale automatic equipment such as labeling machines and the like, due to the fact that the number of parts is large, the connection relation and the signal transmission relation between corresponding control modules are complicated, and if any link of the control modules is wrong, production can be delayed, equipment can be damaged, and even more serious consequences can be caused. For this case, no reliable solution is available at present.
Disclosure of Invention
In order to overcome the above disadvantages of the prior art, an object of the present invention is to provide a multi-module linkage control circuit, which aims to solve the technical problem that it is difficult to implement reliable linkage control among a plurality of control modules at present.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a multi-module linkage control circuit comprises a plurality of control modules and a plurality of communication circuits, wherein the communication circuits are arranged in one-to-one correspondence with the control modules; wherein:
the communication circuits are connected in series, each communication circuit is electrically connected with the corresponding control module, and each communication circuit is used for receiving the control signal and/or the data information output by the corresponding control module and sending the control signal and/or the data information to the adjacent communication circuit and is used for receiving the control signal and/or the data information sent by the adjacent communication circuit and outputting the control signal and/or the data information to the corresponding control module.
Furthermore, the multi-module linkage control circuit further comprises a driving device circuit, the driving device circuit is electrically connected with any one or more of the control modules, and the control modules are used for outputting the control signals to the driving device circuit so as to control the driving device.
Furthermore, the multi-module linkage control circuit further comprises a sensing device circuit, the sensing device circuit is electrically connected with any one or more control modules, and the sensing device circuit is used for acquiring the data information through a sensing device and outputting the data information to the control modules.
Furthermore, each control module comprises a control chip, and the control chip is provided with a first voltage end, a first grounding end, a first sending end, a first receiving end, a signal control end, a first signal output end for sending the control signal and a first signal input end for receiving the data information; each communication circuit comprises a communication chip, and the communication chip is provided with a second voltage end, a second grounding end, a second sending end, a second receiving end, a first enabling end and a signal transceiving end; wherein:
the first voltage end of the control chip is electrically connected to a first preset power supply, and the first grounding end of the control chip is grounded; the first signal output end of the control chip is electrically connected with the driving device circuit so as to output the control signal to the driving device circuit; the first signal input end of the control chip is electrically connected with the sensing device circuit so as to receive the data information output by the sensing device circuit; the first sending end of the control chip is electrically connected with the second receiving end of the corresponding communication chip so as to send the control signal and/or the data information to the corresponding communication chip; the first receiving end of the control chip is electrically connected with the second sending end of the corresponding communication chip so as to receive the control signal and/or the data information sent by the corresponding communication chip; the signal control end of the control chip is electrically connected with the first enabling end of the corresponding communication chip to send an enabling signal to the corresponding communication chip, so that the corresponding communication chip is in a state of sending the control signal and/or the data information, or the corresponding communication chip is in a state of receiving the control signal and/or the data information; the second voltage end of the communication chip is electrically connected to a second preset power supply, and the second grounding end of the communication chip is grounded; the signal transceiving end of each communication chip is used for being electrically connected with the signal transceiving end of the adjacent communication chip so as to transmit the control signal and/or the data information among a plurality of communication chips.
Further, the communication circuit further includes a first resistor, one end of the first resistor is electrically connected to the second preset power supply, and the other end of the first resistor is electrically connected to the first receiving terminal of the control chip and the second sending terminal of the communication chip, respectively.
Furthermore, the communication circuit further includes a second resistor, one end of the second resistor is electrically connected to the second preset power supply, and the other end of the second resistor is electrically connected to the first sending end of the control chip and the second receiving end of the communication chip, respectively.
Furthermore, the communication circuit further comprises a first capacitor, one end of the first capacitor is electrically connected with the second preset power supply and the second voltage end of the communication chip respectively, and the other end of the first capacitor is grounded.
Further, the signal transceiving ends of the communication chip include a first transceiving end and a second transceiving end, and the first transceiving end and/or the second transceiving end are used for being electrically connected with the first transceiving end or the second transceiving end of the adjacent communication chip; the communication circuit further comprises a third resistor, a first diode and a second diode, wherein one end of the third resistor is electrically connected with the first transceiving end of the communication chip, and the other end of the third resistor is electrically connected with the second transceiving end of the communication chip; the anode of the first diode is electrically connected with the second grounding end of the communication chip, and the cathode of the first diode is electrically connected with the second transceiving end of the communication chip; the anode of the second diode is electrically connected with the second grounding end of the communication chip, and the cathode of the second diode is electrically connected with the first transceiving end of the communication chip.
Furthermore, the multi-module linkage control circuit further comprises a power supply circuit, the power supply circuit is electrically connected with the plurality of control modules, and the power supply circuit is used for supplying power to the plurality of control modules.
Further, the power supply circuit comprises a switch chip, a voltage stabilizing chip, a fourth resistor, a fifth resistor, a second capacitor, a third diode, a first inductor, a third capacitor and a fourth capacitor, wherein the switch chip is provided with a first voltage input end, a boosting end, a first voltage output end, a second enabling end, a feedback end and a third grounding end, and the voltage stabilizing chip is provided with a second voltage input end, a second voltage output end and a fourth grounding end; wherein:
the first voltage input end and the second enable end of the switch chip are electrically connected to a third preset power supply, one end of the fourth capacitor is electrically connected to the third preset power supply, and the other end of the fourth capacitor is grounded, the first voltage output end of the switch chip is electrically connected to one end of the first inductor and the cathode of the third diode respectively, the other end of the first inductor is electrically connected to one end of the fourth resistor, one end of the second capacitor and the second voltage input end of the voltage stabilizing chip respectively, the other end of the fourth resistor is electrically connected to one end of the fifth resistor, the cathode of the third diode and the feedback end of the switch chip respectively, the other end of the fifth resistor and the other end of the second capacitor are electrically connected to the cathode of the third diode and the feedback end of the switch chip respectively, the other end of the fifth resistor and the other end of the second capacitor are grounded, the third grounding end of the switch chip is grounded, one end of the third capacitor is electrically connected with the boosting end of the switch chip, the other end of the third capacitor is respectively electrically connected with the first voltage output end of the switch chip and one end of the first inductor, the second voltage output end of the voltage stabilizing chip is electrically connected with the control module, and the fourth grounding end of the voltage stabilizing chip is grounded.
Furthermore, the multi-module linkage control circuit also comprises a plurality of dial-up circuits which are arranged in one-to-one correspondence with the control modules; wherein:
each dial circuit is provided with a dial address, and the dial addresses arranged by the dial circuits are not repeated;
each dial-up circuit is electrically connected with the corresponding control module, each control module is used for acquiring the dial-up address of the corresponding dial-up circuit when receiving the control signal and/or the data information output by the corresponding communication circuit, comparing the dial-up address with the communication address of the received control signal and/or the data information, and ignoring the received control signal and/or the data information when the comparison result is inconsistent.
Furthermore, the dial-up circuit comprises an exclusion array and a dial-up switch, one end of the exclusion array is electrically connected to a fourth preset power supply, the other end of the exclusion array is electrically connected with the control module and one end of the dial-up switch respectively, and the other end of the dial-up switch is grounded.
Furthermore, the multi-module linkage control circuit further comprises a serial port module, one end of the serial port module is electrically connected with any one or more control modules, and the other end of the serial port module is used for being in communication connection with terminal equipment.
Correspondingly, the invention also provides a control system, which comprises terminal equipment and the multi-module linkage control circuit; the multi-module linkage control circuit comprises a serial port module, one end of the serial port module is electrically connected with any one or more control modules, the other end of the serial port module is in communication connection with the terminal device, and the terminal device is configured to output the control signals to the control modules and receive the data information output by the control modules.
Compared with the prior art, the invention has the beneficial effects that:
according to the multi-module linkage control circuit, the communication circuits which are in one-to-one corresponding electric connection with the plurality of control modules are arranged, and the communication circuits are connected in series, so that the control modules can realize transmission of control signals and data information through the communication circuits, and meanwhile, the complexity of circuit layout in the application scene of multi-module linkage control is reduced, and the reliability of signal and data transmission among the plurality of control modules is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of a multi-module linkage control circuit according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of a control module according to an embodiment of the present invention;
FIG. 3 is a circuit diagram of a communication circuit according to an embodiment of the present invention;
FIG. 4 is a circuit diagram of a power supply circuit according to an embodiment of the present invention;
FIG. 5 is a circuit diagram of a dial-up circuit according to an embodiment of the present invention.
Description of reference numerals:
the device comprises a control module, a communication circuit, a driving device circuit, a sensing device circuit, a power supply circuit and a serial port module, wherein the control module is 1, the communication circuit is 2, the driving device circuit is 3, the sensing device circuit is 4, the power supply circuit is 5, and the serial port module is 6.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a multi-module linkage control circuit, which includes a plurality of control modules 1 and a plurality of communication circuits 2, where the communication circuits are arranged in one-to-one correspondence with the control modules 1; wherein:
the communication circuits 2 are connected in series, each communication circuit 2 is electrically connected with a corresponding control module 1, and each communication circuit 2 is used for receiving the control signal and/or data information output by the corresponding control module 1 and sending the control signal and/or data information to the adjacent communication circuit 2, and is used for receiving the control signal and/or data information sent by the adjacent communication circuit 2 and outputting the control signal and/or data information to the corresponding control module 1.
In this embodiment, the communication circuit 2 may be specifically selected as an RS-485 transceiver circuit, and a transceiver end of the RS-485 transceiver circuit chip may be used to transmit and receive control signals and data information. When a certain control module 1 receives a control signal, the corresponding component controlled by the control module 1 is driven to execute corresponding action according to the instruction of the control signal; the data information refers to data collected and transmitted back to the control module 1 by a device (such as a sensor, a detector, etc.) for collecting external environment data or detecting internal data of the device, so that the control module 1 or a terminal device connected with the control module 1 can analyze and process the data. It should be noted that, in a large-scale automation device, because the number of components is large, all the components cannot be controlled by only one control module 1, and data collected by all the data collecting devices cannot be processed by one control module 1, a plurality of control modules 1 need to be provided, each control module 1 respectively controls a part of the components in the device and a part of the data collecting devices in the docking device, and each control module 1 needs to be linked to ensure the normal operation of the whole device. Based on the setting of the RS-485 transceiver circuit, the connection mode and the control principle of the multi-module linkage control circuit in this embodiment are as follows:
the transmitting end and the receiving end of each communication circuit 2 are electrically connected with the corresponding control module 1, and the transceiving end of each communication circuit 2 is electrically connected with the transceiving end of another communication circuit 2 in sequence until all the communication circuits 2 are connected in series, so that the control signal and the data information output from any control module 1 to the corresponding communication circuit 2 can be transmitted and circulated in all the communication circuits 2 and reach the rest of all the control modules 1.
Specifically, taking the labeling machine as an example, the control method of the multi-module linkage control circuit is further described in detail:
the control module 1 of the labelling machine typically comprises a main control module, a transport module, a tunnel module and a labelling module, each controlling respectively different components in the labelling machine and interfacing with different data collection means in the labelling machine. When the main control module needs to control a certain component to act, for example, the main control motor is controlled to rotate at a certain speed, the main control module sends out a control signal which is directly output to the main control motor electrically connected with the main control module to drive the main control motor to rotate, and is also output to the communication circuit 2 corresponding to the main control module, and is transmitted to the other three communication circuits 2 in a signal broadcasting way through the communication circuit 2, and finally reaches the transportation module, the channel module and the labeling module, and the transportation module, the channel module and the labeling module can be combined with a preset program per se, whether to execute cooperative operation at the moment is judged according to the control signal, if the labeling module judges that the labeling motor needs to be started at the moment to match the main control motor to complete a preset flow, the labeling module outputs another control signal which drives the labeling motor to rotate in a preset way to match the main control motor, meanwhile, the control signal is also transmitted to the main control module, the transport module and the channel module in a signal broadcasting mode through the communication circuit 2 by repeating the transmission process of the previous control signal, and the main control module, the transport module and the channel module execute corresponding operations according to the control signal. The control signals are cyclically reciprocated in this way, so that the linkage of the control signals among the modules is realized.
And the same is true about the linkage of the data information, when the sensor butted with the transportation module detects abnormal data, the sensor transmits the data information back to the transportation module, the transportation module executes preset corresponding operation according to the data information, meanwhile, the data information is also transmitted to the other three communication circuits 2 through the communication circuit 2 corresponding to the transportation module and finally reaches the main control module, the channel module and the labeling module, the main control module, the channel module and the labeling module judge whether corresponding adjustment operation needs to be executed according to the data information based on the preset program per se so as to match the transportation module to process the abnormity, if the channel module needs to control the channel motor to stop rotating, the channel module outputs a control signal to control the channel motor to stop rotating, and transmits the control signal to the main control module in a signal broadcasting mode through the communication circuit 2, A transportation module and a labeling module (namely the control signal linkage process). Similarly, the data information collected by the data collecting device butted with the main control module, the channel module and the labeling module is also subjected to data sharing through the transmission process. Therefore, linkage of data information among a plurality of modules is realized.
It should be noted that, in the implementation process, the number of the control modules 1 is not limited to four, and may be increased or decreased according to actual needs, which is not limited in this embodiment, but the number of the communication circuits 2 also needs to be increased or decreased corresponding to the control modules 1 and is set according to the above connection manner.
Therefore, in the multi-module linkage control circuit provided by this embodiment, the communication circuits 2 electrically connected to the plurality of control modules 1 in a one-to-one correspondence are arranged, and the plurality of communication circuits 2 are connected in series, so that the control modules 1 can transmit control signals and data information to each other through the communication circuits 2, and meanwhile, the complexity of circuit layout in an application scenario of multi-module linkage control is reduced, thereby improving the reliability of signal and data transmission between the plurality of control modules 1.
Further, referring to fig. 1, in an exemplary embodiment, the multi-module coordinated control circuit further includes a driver circuit 3, the driver circuit 3 is electrically connected to any one or more of the control modules 1, and the control modules 1 are configured to output a control signal to the driver circuit 3 for controlling the driver.
Further, referring to fig. 1, in an exemplary embodiment, the multi-module coordinated control circuit further includes a sensing device circuit 4, the sensing device circuit 4 is electrically connected to any one or more control modules 1, and the sensing device circuit 4 is configured to acquire data information through the sensing device and output the data information to the control modules 1.
In the above two embodiments, the driving device, that is, the component controlled by the control module 1 in the apparatus described in the previous embodiment, may specifically be a stepping motor, a brushless dc motor, a dc planetary gear motor, an LED alarm lamp, an electromagnet, etc.; the sensing device, i.e. the data collecting device in the previous embodiment, may be specifically a correlation sensor, a U-shaped sensor, an optical fiber sensor, etc. In a specific implementation process, the driving device circuit 3 and the sensing device circuit 4 can be set according to actual application requirements, and only the linkage control with the control module 1 can be completed in the manner described in the previous embodiment, and the specific control manner can refer to the previous embodiment, which is not described herein again.
Further, referring to fig. 1 to 3, in an exemplary embodiment, each control module 1 includes a control chip U4A, the control chip U4A has a first voltage terminal, a first ground terminal, a first transmitting terminal TX _485, a first receiving terminal RX _485, a signal control terminal R/T _485, a first signal output terminal for transmitting a control signal, and a first signal input terminal for receiving data information; each communication circuit 2 comprises a communication chip U14, the communication chip U14 has a second voltage terminal VCC, a second ground terminal GND, a second sending terminal RO, a second receiving terminal DI, a first enabling terminal and a signal transceiving terminal; wherein:
a first voltage end of the control chip U4A is electrically connected to a first preset power supply, and a first grounding end of the control chip U4A is grounded; a first signal output end of the control chip U4A is electrically connected to the driving device circuit 3 to output a control signal to the driving device circuit 3; a first signal input end of the control chip U4A is electrically connected with the sensing device circuit 4 to receive data information output by the sensing device circuit 4; the first sending terminal TX _485 of the control chip U4A is electrically connected to the second receiving terminal DI of the corresponding communication chip U14 to send the control signal and/or the data information to the corresponding communication chip U14; the first receiving terminal RX _485 of the control chip U4A is electrically connected to the second transmitting terminal RO of the corresponding communication chip U14 to receive the control signal and/or data information sent by the corresponding communication chip U14; the signal control terminal of the control chip U4A is electrically connected to the first enable terminal of the corresponding communication chip U14 to send an enable signal to the corresponding communication chip U14, so that the corresponding communication chip U14 is in a state of sending control signals and/or data information, or so that the corresponding communication chip U14 is in a state of receiving control signals and/or data information; a second voltage end of the communication chip U14 is electrically connected to a second preset power supply, and a second grounding end of the communication chip U14 is grounded; the signaling terminal of each communication chip U14 is used to electrically connect with the signaling terminal of an adjacent communication chip U14 to transmit control signals and/or data information among the plurality of communication chips U14.
Specifically, the signal transceiving ends of the communication chip U14 include a first transceiving end a and a second transceiving end B, and the first transceiving end a and/or the second transceiving end B are used for being electrically connected with the first transceiving end a or the second transceiving end B of the adjacent communication chip U14;
in this embodiment, the interlocking control method described in the first embodiment will be described. A first voltage terminal pin 7 of the control chip U4A is electrically connected to a first preset power supply (illustratively, the first preset power supply is a +3.3V dc power supply), and a first ground terminal pin of the control chip U4A is also a pin 7, illustratively, the first ground terminal is grounded after passing through a capacitor C15, so as to improve the stability of voltage input, thereby improving the stability of the operation of the control chip U4A; the second voltage terminal VCC of the communication chip U14 is electrically connected to a second predetermined power supply (illustratively, the second predetermined power supply is a +3.3V dc power supply). In specific implementation, the control chip U4A may be a single chip, the enable signal includes a high level signal and a low level signal, when a certain control chip U4A needs to send a control signal or data information to other control chips U4A, the signal control end of the control chip U4A may output the high level signal to the first enable end DE of the communication chip U14, so that the communication chip U14 is in a sending state, and the control chip U4A may output the control signal or data information to the second receiving end DI of the communication chip U14 through the first sending end TX _485 and control the communication chip U14 to output the control signal or data information to the adjacent communication chip U14 through the first transceiving end or the second transceiving end, and finally to the other control chips U4A; when a certain control chip U4A needs to receive the control signal or data information output by another control chip U4A, a low level signal is output to the first enable terminal RE of the communication chip U14 through the signal control terminal of the control chip U4A, so that the communication chip U14 is in a receiving state, and the control signal or data information output by the other control chip U4A through the corresponding communication chip U14 is received by the first transceiving terminal a or the second transceiving terminal B of the communication chip U14 and is transmitted to the first receiving terminal RX _485 of the control chip U4A through the second transmitting terminal RO, so as to be used by the control chip U4A.
It should be noted that, the communication chips U14 are connected in series, and only one of the first transceiving end a and the second transceiving end B of the two communication chips U14 at the head and tail ends of the serial queue is in a connected state (connected to the first transceiving end a or the second transceiving end B of another adjacent communication chip U14); and for a plurality of communication chips U14 in the middle of the serial queue, the first transceiving end A and the second transceiving end B are in a connection state (connected with the first transceiving end A or the second transceiving end B of two other adjacent communication chips U14 respectively).
Further, referring to fig. 1 to 3, in an exemplary embodiment, the communication circuit 2 further includes a first resistor R80, one end of the first resistor R80 is electrically connected to the second preset power supply, and the other end of the first resistor R80 is electrically connected to the first receiving terminal RX _485 of the control chip U4A and the second transmitting terminal RO of the communication chip U14, respectively. In this way, the anti-interference capability of the communication chip U14 during the transmission of control signals or data information can be improved by the pull-up action of the first resistor R80.
Further, referring to fig. 1 to 3, in an exemplary embodiment, the communication circuit 2 further includes a second resistor R81, one end of the second resistor R81 is electrically connected to a second preset power supply, and the other end of the second resistor R81 is electrically connected to the first transmitting terminal TX _485 of the control chip U4A and the second receiving terminal DI of the communication chip U14, respectively. Therefore, the anti-interference capability of the communication chip U14 in the transmission process of control signals or data information can be improved through the pull-up action of the second resistor R81.
Further, referring to fig. 1 to 3, in an exemplary embodiment, the communication circuit 2 further includes a first capacitor C54, one end of the first capacitor C54 is electrically connected to the second preset power supply and the second voltage terminal VCC of the communication chip U14, respectively, and the other end of the first capacitor C54 is grounded. Therefore, the voltage of the second preset power supply input is filtered through the first capacitor C54, the stability of the voltage input can be improved, and the stability of the work of the communication chip U14 can be improved.
Further, referring to fig. 1 to 3, in an exemplary embodiment, the communication circuit 2 further includes a third resistor R74, a first diode D3 and a second diode D4, wherein one end of the third resistor R74 is electrically connected to the first transceiving terminal a of the communication chip U14, and the other end is electrically connected to the second transceiving terminal B of the communication chip U14; the anode of the first diode D3 is electrically connected to the second ground GND of the communication chip U14, and the cathode is electrically connected to the second transceiving terminal B of the communication chip U14; the anode of the second diode D4 is electrically connected to the second ground GND of the communication chip U14, and the cathode is electrically connected to the first transceiving terminal a of the communication chip U14. Therefore, the transmission stability of the communication chip can be further improved, wherein the third resistor R74 is a matching resistor, so that the interference on long-distance data transmission can be reduced; the first diode D3 and the second diode D4 are zener diodes, which can also reduce the interference when data is transmitted over long distances. It should be noted that, according to the specific circuit structure of the communication circuit 2 disclosed in the present embodiment, a person skilled in the art can know the specific operation principle of the communication circuit 2, and details are not described here.
Further, referring to fig. 1 to 4, in an exemplary embodiment, the multi-module coordinated control circuit further includes a power supply circuit 5, the power supply circuit 5 is electrically connected to the plurality of control modules 1, and the power supply circuit 5 is configured to supply power to the plurality of control modules 1. Specifically, the power supply circuit 5 includes a switch chip U12, a voltage regulation chip U2, a fourth resistor R2, a fifth resistor R78, a second capacitor C10, a third diode D7, a first inductor L1, a third capacitor C50, and a fourth capacitor C12, the switch chip U12 has a first voltage input terminal IN, a boost terminal BS, a first voltage output terminal SW, a second enable terminal EN, a feedback terminal FB, and a third ground terminal GND, and the voltage regulation chip U2 has a second voltage input terminal IN, a second voltage output terminal OUT, and a fourth ground terminal GND; wherein:
a first voltage input terminal IN and a second enable terminal EN of the switch chip U12 are electrically connected to a third preset power supply, one end of a fourth capacitor C12 is electrically connected to the third preset power supply, and the other end is grounded, a first voltage output terminal SW of the switch chip U12 is electrically connected to one end of a first inductor L1 and the cathode of a third diode D7, the other end of a first inductor L1 is electrically connected to one end of a fourth resistor R2, one end of a second capacitor C10 and the second voltage input terminal IN of the voltage stabilization chip U2, the other end of a fourth resistor R2 is electrically connected to one end of a fifth resistor R78, the cathode of a third diode D7 and the feedback terminal FB of the switch chip U12, the other end of the fifth resistor R78 and the other end of the second capacitor C10 are electrically connected to the cathode of a third diode D7 and the feedback terminal FB of the switch chip U12, and the other end of the fifth resistor R78 and the other end of the second capacitor C10 are grounded, the third ground terminal GND of the switch chip U12 is grounded, one end of the third capacitor C50 is electrically connected to the boost terminal BS of the switch chip U12, the other end of the third capacitor C50 is electrically connected to the first voltage output terminal SW of the switch chip U12 and one end of the first inductor L1, the second voltage output terminal OUT of the voltage stabilizing chip U2 is electrically connected to the control module 1, and the fourth ground terminal GND of the voltage stabilizing chip U2 is grounded.
In the present embodiment, illustratively, the second voltage output terminal OUT of the regulator chip U2 may be electrically connected to the first voltage terminal pin 7 of the control chip, and based on the above circuit structure design, the +24V voltage output by the third predetermined power supply may be converted into a +3.3V voltage to supply power to the control chip U4A. The fourth capacitor C12 may filter the voltage input by the third preset power supply, so as to improve the stability of the voltage input; the fourth resistor R2, the fifth resistor R78, the second capacitor C10, the third diode D7 and the first inductor L1 jointly form a DC-DC feedback circuit so as to control the switch chip U12 through the feedback effect, and therefore the purpose of stabilizing the output voltage is achieved; and the third capacitor C50 is a boost capacitor working in cooperation with the DC-DC feedback circuit, and can play a role in boosting voltage. It should be noted that, according to the specific circuit structure of the power supply circuit 5 disclosed in the present embodiment, a person skilled in the art can know the specific operation principle of the power supply circuit 5, and details thereof are not described herein.
Further, referring to fig. 1 to 5, in an exemplary embodiment, the multi-module linkage control circuit further includes a plurality of dial circuits disposed in one-to-one correspondence with the plurality of control modules 1; wherein:
each dial circuit is provided with a dial address, and the dial addresses arranged by the dial circuits are not repeated;
each dial circuit is electrically connected with the corresponding control module 1, and each control module 1 is used for acquiring the dial address of the corresponding dial circuit when receiving the control signal and/or the data information output by the corresponding communication circuit 2, comparing the dial address with the communication address of the received control signal and/or the data information, and ignoring the received control signal and/or the data information when the comparison result is inconsistent.
Specifically, the dial circuit comprises an exclusion resistor (R84-R87) and a dial switch S3, wherein one end of the exclusion resistor (R84-R87) is electrically connected to a fourth preset power supply, the other end of the exclusion resistor is electrically connected with one end of the control module 1 and one end of the dial switch S3 respectively, and the other end of the dial switch S3 is grounded.
In this embodiment, illustratively, the dialing circuit is electrically connected to pins S1 to S4 of the control chip U4A, when a certain control chip U4A receives a control signal or data information transmitted from another control chip U4A, the dialing address is compared with a communication address carried by the control signal or data information, and if the dialing address is identical to the communication address, it indicates that the control signal or data information corresponds to the control chip U4A, the control chip U4A performs a corresponding operation on the control signal or data information; if the dialing address is not consistent with the communication address, which indicates that the control signal or data information does not need to be processed by the control chip U4A, the control chip U4A will automatically ignore the control signal or data information. Therefore, the data transmission efficiency is effectively improved through the filtering and screening effects of the dial-up circuit on the control signals and the data information.
In a specific implementation process, an exclusion (R84-R87) and a dial switch S3 of a dial circuit are connected with pins S1-S4 of a control chip U4A in a one-to-one correspondence manner, based on the setting of the dial circuit, the on and off of the dial switch S3 respectively correspond to the high level and the low level of the pins S1-S4 of the control chip U4A, the high and low levels of the four dial switches S3 are combined to form a dial address, and the control chip U4A can determine whether the dial address and the communication address are consistent or not through the level comparison of the dial address and the communication address; the S1 to S4 pins of the control chip U4A can be stabilized in potential by the pull-down action of the resistor resistors (R84 to R87). It should be noted that, according to the specific circuit structure of the dial circuit disclosed in this embodiment, a person skilled in the art can know the specific operating principle of the dial circuit, and details are not described herein.
Further, referring to fig. 1 and 2, in an exemplary embodiment, the multi-module coordinated control circuit further includes a serial module 6, one end of the serial module 6 is electrically connected to any one or more control modules 1, and the other end is used for being in communication connection with a terminal device.
In this embodiment, the serial port module 6 may specifically include a serial port, one end of the serial port is electrically connected to the TX _ PC pin and the RX _ PC pin of the control chip U4A, respectively, and the other end of the serial port is in communication connection with the terminal device, so as to output a control signal to the control chip U4A by operating the terminal device, and receive a feedback signal or data information output by the control chip U4A on the terminal device for analysis processing.
Correspondingly, the embodiment of the invention also provides a control system, which comprises terminal equipment and the multi-module linkage control circuit in any embodiment; the multi-module linkage control circuit comprises a serial port module 6, one end of the serial port module 6 is electrically connected with any one or more control modules 1, the other end of the serial port module is in communication connection with a terminal device, and the terminal device is configured to output control signals to the control modules 1 and receive data information output by the control modules 1.
In this embodiment, the terminal device may be an industrial personal computer, a tablet personal computer, or the like, and based on a serial port communication mode, the control chip U4A in the multi-module linkage control circuit may execute a corresponding operation (output a control signal) according to an instruction sent by the terminal device, and feed back acquired data information to the terminal device. Thanks to the improvement of the multi-module linkage control circuit, the control system of the present embodiment has the same technical effect as the multi-module linkage control circuit, and is not further described herein.
It should be noted that other contents of the multi-module linkage control circuit and the control system disclosed in the present invention can be referred to in the prior art, and are not described herein again.
In addition, it should be noted that the descriptions related to "first", "second", etc. in the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The multi-module linkage control circuit is characterized by comprising a plurality of control modules and a plurality of communication circuits, wherein the communication circuits are arranged in one-to-one correspondence with the control modules; wherein:
the communication circuits are connected in series, each communication circuit is electrically connected with the corresponding control module, and each communication circuit is used for receiving the control signal and/or the data information output by the corresponding control module and sending the control signal and/or the data information to the adjacent communication circuit and is used for receiving the control signal and/or the data information sent by the adjacent communication circuit and outputting the control signal and/or the data information to the corresponding control module.
2. The multi-module coordinated control circuit according to claim 1, further comprising a driver circuit electrically connected to any one or more of the control modules, and wherein the control module is configured to output the control signal to the driver circuit for controlling a driver;
and/or, the multi-module linkage control circuit further comprises a sensing device circuit, the sensing device circuit is electrically connected with any one or more control modules, and the sensing device circuit is used for acquiring the data information through a sensing device and outputting the data information to the control modules.
3. The multi-module linkage control circuit according to claim 2, wherein each of the control modules comprises a control chip having a first voltage terminal, a first ground terminal, a first transmitting terminal, a first receiving terminal, a signal control terminal, a first signal output terminal for transmitting the control signal, and a first signal input terminal for receiving the data information; each communication circuit comprises a communication chip, and the communication chip is provided with a second voltage end, a second grounding end, a second sending end, a second receiving end, a first enabling end and a signal transceiving end; wherein:
the first voltage end of the control chip is electrically connected to a first preset power supply, and the first grounding end of the control chip is grounded; the first signal output end of the control chip is electrically connected with the driving device circuit so as to output the control signal to the driving device circuit; the first signal input end of the control chip is electrically connected with the sensing device circuit so as to receive the data information output by the sensing device circuit; the first sending end of the control chip is electrically connected with the second receiving end of the corresponding communication chip so as to send the control signal and/or the data information to the corresponding communication chip; the first receiving end of the control chip is electrically connected with the second sending end of the corresponding communication chip so as to receive the control signal and/or the data information sent by the corresponding communication chip; the signal control end of the control chip is electrically connected with the first enabling end of the corresponding communication chip to send an enabling signal to the corresponding communication chip, so that the corresponding communication chip is in a state of sending the control signal and/or the data information, or the corresponding communication chip is in a state of receiving the control signal and/or the data information; the second voltage end of the communication chip is electrically connected to a second preset power supply, and the second grounding end of the communication chip is grounded; the signal transceiving end of each communication chip is used for being electrically connected with the signal transceiving end of the adjacent communication chip so as to transmit the control signal and/or the data information among a plurality of communication chips.
4. The multi-module linkage control circuit according to claim 3, wherein the communication circuit further comprises a first resistor, one end of the first resistor is electrically connected to the second preset power supply, and the other end of the first resistor is electrically connected to the first receiving terminal of the control chip and the second transmitting terminal of the communication chip respectively;
and/or, the communication circuit further includes a second resistor, one end of the second resistor is electrically connected to the second preset power supply, and the other end of the second resistor is electrically connected to the first sending end of the control chip and the second receiving end of the communication chip respectively;
and/or, the communication circuit further comprises a first capacitor, one end of the first capacitor is electrically connected with the second preset power supply and the second voltage end of the communication chip respectively, and the other end of the first capacitor is grounded;
and/or the signal transceiving ends of the communication chip comprise a first transceiving end and a second transceiving end, and the first transceiving end and/or the second transceiving end are used for being electrically connected with the first transceiving end or the second transceiving end of the adjacent communication chip; the communication circuit further comprises a third resistor, a first diode and a second diode, wherein one end of the third resistor is electrically connected with the first transceiving end of the communication chip, and the other end of the third resistor is electrically connected with the second transceiving end of the communication chip; the anode of the first diode is electrically connected with the second grounding end of the communication chip, and the cathode of the first diode is electrically connected with the second transceiving end of the communication chip; the anode of the second diode is electrically connected with the second grounding end of the communication chip, and the cathode of the second diode is electrically connected with the first transceiving end of the communication chip.
5. The multi-module coordinated control circuit of claim 1, further comprising a power supply circuit, wherein the power supply circuit is electrically connected to the plurality of control modules, and wherein the power supply circuit is configured to supply power to the plurality of control modules.
6. The multi-module linkage control circuit according to claim 5, wherein the power supply circuit comprises a switch chip, a voltage regulator chip, a fourth resistor, a fifth resistor, a second capacitor, a third diode, a first inductor, a third capacitor and a fourth capacitor, the switch chip has a first voltage input terminal, a boost terminal, a first voltage output terminal, a second enable terminal, a feedback terminal and a third ground terminal, and the voltage regulator chip has a second voltage input terminal, a second voltage output terminal and a fourth ground terminal; wherein:
the first voltage input end and the second enable end of the switch chip are electrically connected to a third preset power supply, one end of the fourth capacitor is electrically connected to the third preset power supply, and the other end of the fourth capacitor is grounded, the first voltage output end of the switch chip is electrically connected to one end of the first inductor and the cathode of the third diode respectively, the other end of the first inductor is electrically connected to one end of the fourth resistor, one end of the second capacitor and the second voltage input end of the voltage stabilizing chip respectively, the other end of the fourth resistor is electrically connected to one end of the fifth resistor, the cathode of the third diode and the feedback end of the switch chip respectively, the other end of the fifth resistor and the other end of the second capacitor are electrically connected to the cathode of the third diode and the feedback end of the switch chip respectively, the other end of the fifth resistor and the other end of the second capacitor are grounded, the third grounding end of the switch chip is grounded, one end of the third capacitor is electrically connected with the boosting end of the switch chip, the other end of the third capacitor is respectively electrically connected with the first voltage output end of the switch chip and one end of the first inductor, the second voltage output end of the voltage stabilizing chip is electrically connected with the control module, and the fourth grounding end of the voltage stabilizing chip is grounded.
7. The multi-module coordinated control circuit according to claim 1, further comprising a plurality of dial-up circuits provided in one-to-one correspondence with the plurality of control modules; wherein:
each dial circuit is provided with a dial address, and the dial addresses arranged by the dial circuits are not repeated;
each dial-up circuit is electrically connected with the corresponding control module, each control module is used for acquiring the dial-up address of the corresponding dial-up circuit when receiving the control signal and/or the data information output by the corresponding communication circuit, comparing the dial-up address with the communication address of the received control signal and/or the data information, and ignoring the received control signal and/or the data information when the comparison result is inconsistent.
8. The multi-module linkage control circuit according to claim 7, wherein the dial-up circuit comprises a resistor pack and a dial-up switch, one end of the resistor pack is electrically connected to a fourth preset power supply, the other end of the resistor pack is electrically connected to one end of the control module and one end of the dial-up switch respectively, and the other end of the dial-up switch is grounded.
9. The multi-module coordinated control circuit according to claim 1, further comprising a serial port module, one end of which is electrically connected to any one or more of the control modules and the other end of which is used for being in communication connection with a terminal device.
10. A control system comprising a terminal device and a multi-module coordinated control circuit according to any one of claims 1 to 9; the multi-module linkage control circuit comprises a serial port module, one end of the serial port module is electrically connected with any one or more control modules, the other end of the serial port module is in communication connection with the terminal device, and the terminal device is configured to output the control signals to the control modules and receive the data information output by the control modules.
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| CN202110934982.1A CN113721504A (en) | 2021-08-13 | 2021-08-13 | Multi-module linkage control circuit and control system |
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