CN109164733B - High-efficiency programmable controller power supply and signal transmission system and method - Google Patents
High-efficiency programmable controller power supply and signal transmission system and method Download PDFInfo
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- CN109164733B CN109164733B CN201810974065.4A CN201810974065A CN109164733B CN 109164733 B CN109164733 B CN 109164733B CN 201810974065 A CN201810974065 A CN 201810974065A CN 109164733 B CN109164733 B CN 109164733B
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- programmable controller
- storage device
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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
- 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
- G05B19/0423—Input/output
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
Abstract
The invention provides a high-efficiency programmable controller power supply and signal transmission system, which comprises a programmable controller, an electricity storage device and a central processing unit, wherein the programmable controller is used for receiving switch input, switch change rate, voltage change rule and change rate, the electricity storage device is used for storing electric energy and supplying power to the system, and the central processing unit is used for receiving signals from the programmable controller and performing corresponding control and output; the power supply, the power storage and the signal transmission are carried out through the two lines between the programmable controller and the power storage device and between the power storage device and the central processing unit system.
Description
[ technical field ]
The invention relates to a power supply and signal transmission technology of a programmable controller, in particular to a high-efficiency power supply and signal transmission system and a high-efficiency power supply and signal transmission mode of the programmable controller, which can reduce complicated wiring and realize power supply and simultaneous return of various signals through two wires.
[ background art ]
With the development of science and technology, various switches and various signals are more and more in variety, and how to accurately and safely transmit the signals back is a technical topic.
Common signaling and control circuits are a switch-group of lines (two lines), such as a light switch, and even a switch 4-5 lines, such as a knob-coded switch of the EC11 series, and a switch with tens of lines. Still some occasions need many switches to cooperate and use just can reach predetermined effect, and common wireless technology carries out the transmission of data and switch through wireless technology at present, and this kind of technical cost can be on the high side, can appear losing moreover, disturb scheduling problem. Based on this, in these occasions, if several or even dozens of lines can be effectively reduced to 2 lines, the installation work can be greatly reduced, wires and labor are reduced, errors are reduced, faults are reduced, and the like.
Based on the above problems, those skilled in the art have made a lot of research and development and experiments, and have improved and improved the specific circuit connection and control method, and have achieved better results.
[ summary of the invention ]
In order to overcome the problems in the prior art, the invention provides a high-efficiency power supply and signal transmission system and a high-efficiency power supply and signal transmission mode for a programmable controller, which can reduce complicated wiring and realize power supply and simultaneous return of various signals through two wires.
The invention provides a high-efficiency programmable controller power supply and signal transmission system, which comprises a programmable controller, an electricity storage device and a central processing unit, wherein the programmable controller is used for receiving switch input, switch change rate, voltage change rule and change rate, the electricity storage device is used for storing electric energy and supplying power to the system, and the central processing unit is used for receiving signals from the programmable controller and carrying out corresponding control and output; the programmable controller and the electricity storage device and the central processing unit system are used for power supply, electricity storage and signal transmission through two lines; the programmable controller comprises a logic unit for judging the judgment or voltage change rule of various switches, a storage unit for storing and storing various switch states and change parameters in real time, and a clock unit for recording the switch closing time, the change time, the input sequence of various switches, the voltage change time and the real-time change parameters of the corresponding storage unit.
Preferably, two lines between the programmable controller and the power storage device and between the power storage device and the central processing unit system are further connected with a current-limiting reverse-prevention power supply circuit unit for preventing the power storage device from supplying power reversely and ensuring that the power storage device only supplies power to the programmable controller.
Preferably, the two lines between the programmable controller and the power storage device and between the power storage device and the central processor system include a first line and a second line; and two ends of the first line are respectively connected with a Vss contact of the programmable controller and a central processing unit system, one end of the second line is connected with the central processing unit system, and the other end of the second line is divided into two paths and then is respectively connected with a PB0 contact and a VD0 contact of the programmable controller.
Preferably, a plurality of capacitance circuits for storing electricity and transient suppression diode circuits are connected in parallel between the VD0 junction branches of the first line and the second line; the PB0 contact branch of the second line is also connected in parallel with a plurality of capacitor circuits, transient suppression diode circuits, and resistance circuits for storing electricity.
Preferably, the storage device is a rechargeable battery or a capacitor.
A high-efficiency power supply and signal transmission mode for programmable controller includes the following steps,
s1: receiving various switch inputs, switch change rates, voltage change rules and change rate information from the outside by utilizing a programmable controller; the logic unit in the programmable controller judges the judgment of various switches or the change rule of voltage, simultaneously stores the states and change parameters of various switches in real time in the storage unit for comparison and on-off state recording, the clock unit of the programmable controller records the on-off time and the change time of the switches, the input sequence of various switches, the voltage change time and the real-time change parameters of the corresponding storage unit, and simultaneously outputs various switch signals or square wave signals or digital signals with different duty ratios according to the preset setting of a program;
s2: in step S1, when the programmable controller outputs a switching signal, a square wave signal with different duty ratios, or a digital signal, two power supply and signal transmission lines connected between the programmable controller and the power storage device and between the power storage device and the central processing unit system generate voltage changes;
s3: the programmable controller outputs different, real-time, delayed, timed or address-carrying signals to the central processing unit system through two lines according to the sequence, the speed and the high level of the switch input; the central processing unit system identifies the signal and controls and outputs the signal.
Preferably, the programmable controller defines different IDs for various switches or signals or addresses and signals are transmitted together to the central processor system through two lines.
Preferably, the programmable controller in step S1 is connected to an external knob code switch, and receives the change information from the knob code switch.
Compared with the prior art, the high-efficiency programmable controller power supply and signal transmission system of the invention is provided with a programmable controller for receiving switch input, switch change rate, voltage change rule and change rate, an electricity storage device for storing electric energy and supplying power to the system, and a central processing unit system for receiving signals from the programmable controller and carrying out corresponding control and output, and two circuits are arranged between the programmable controller and the electricity storage device and between the electricity storage device and the central processing unit system for power supply, electricity storage and signal transmission, the electricity storage device is slowly charged in the electricity storage device through one circuit in the time without switch input and without influencing circuit signals, and when the switch input, the circuit is greatly lost or the voltage is reduced, the reverse device is prevented to prevent the electricity storage device from reversely supplying power, the power storage device is ensured to only supply power to the programmable controller, and signal transmission of the power supply line is not influenced, so that the number of the power lines can be effectively reduced, and various signal inputs or different intentions can be safely and accurately transmitted to a remote central processing unit system through two lines.
[ description of the drawings ]
Fig. 1 is a schematic diagram of a frame structure of a high-efficiency plc power supply and signal transmission system according to the present invention.
Fig. 2 is a schematic diagram of an application of the power supply and signal transmission method for the high-efficiency programmable controller according to the present invention.
[ detailed description of the invention ]
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, a high-efficiency power supply and signal transmission system 1 for a programmable controller according to the present invention includes a programmable controller for receiving a switch input, a switch change rate, a voltage change rule, and a change rate, a power storage device for storing electric energy and supplying power to the system, and a central processing unit system for receiving a signal from the programmable controller and performing corresponding control and output; the programmable controller and the electricity storage device and the central processing unit system are used for power supply, electricity storage and signal transmission through two lines; the programmable controller comprises a logic unit for judging the judgment or voltage change rule of various switches, a storage unit for storing and storing various switch states and change parameters in real time, and a clock unit for recording the switch closing time, the change time, the input sequence of various switches, the voltage change time and the real-time change parameters of the corresponding storage unit.
The utility model provides a through set up the programmable controller who is used for receiving switch input, switch rate of change, voltage change law and rate of change simultaneously, be used for storing the electric energy and to the accumulate device of system power supply and be used for receiving the signal that comes from programmable controller and carry out corresponding control and the central processing unit system of output, and set up two circuits between programmable controller and accumulate device and between accumulate device and the central processing unit system and supply power, electric power storage and signal transmission, in the time of not having the switch input, slowly charge in accumulate device through one of them circuit under the prerequisite that does not influence the circuit signal, when there is the switch input, the circuit is a large amount of losses or draws low voltage, prevent that the reverse device can prevent the reserve power supply of electricity device, guarantee that the accumulate device only supplies power to the programmable controller, do not influence the signal transmission of power supply line, the design can effectively reduce the number of electric wires and realize the safe and accurate transmission of various signal inputs or different intentions to a remote central processing unit system through two wires.
The application provides a programmable controller power supply and signal transmission technique, can adjust luminance the mixing of colors, volume control, voltage control, motor control etc. at LED, automobile manufacturing field in addition, numerous switches on the steering wheel just can realize through two lines, reduce loaded down with trivial details wiring.
Preferably, two lines between the programmable controller and the power storage device and between the power storage device and the central processing unit system are further connected with a current-limiting reverse-prevention power supply circuit unit for preventing the power storage device from supplying power reversely and ensuring that the power storage device only supplies power to the programmable controller.
Preferably, the two lines between the programmable controller and the power storage device and between the power storage device and the central processor system include a first line and a second line; and two ends of the first line are respectively connected with a Vss contact of the programmable controller and a central processing unit system, one end of the second line is connected with the central processing unit system, and the other end of the second line is divided into two paths and then is respectively connected with a PB0 contact and a VD0 contact of the programmable controller.
Preferably, a plurality of capacitance circuits for storing electricity and transient suppression diode circuits are connected in parallel between the VD0 junction branches of the first line and the second line; the PB0 contact branch of the second line is also connected in parallel with a plurality of capacitor circuits, transient suppression diode circuits, and resistance circuits for storing electricity.
Preferably, the storage device is a rechargeable battery or a capacitor. The energy consumption of the programmable controller is very low, a 200mah battery can be used for 3-5 years, so that the capacitor is used for power supply and storage, the capacitor can be used for 20 years at 55 ℃, the temperature of a common use occasion is not high, and the programmable controller is a very durable power storage and supply component.
A high-efficiency power supply and signal transmission mode for programmable controller includes the following steps,
s1: receiving various switch inputs, switch change rates, voltage change rules and change rate information from the outside by utilizing a programmable controller; the logic unit in the programmable controller judges the judgment of various switches or the change rule of voltage, simultaneously stores the states and change parameters of various switches in real time in the storage unit for comparison and on-off state recording, the clock unit of the programmable controller records the on-off time and the change time of the switches, the input sequence of various switches, the voltage change time and the real-time change parameters of the corresponding storage unit, and simultaneously outputs various switch signals or square wave signals or digital signals with different duty ratios according to the preset setting of a program;
s2: in step S1, when the programmable controller outputs a switching signal, a square wave signal with different duty ratios, or a digital signal, two power supply and signal transmission lines connected between the programmable controller and the power storage device and between the power storage device and the central processing unit system generate voltage changes;
s3: the programmable controller outputs different, real-time, delayed, timed or address-carrying signals to the central processing unit system through two lines according to the sequence, the speed and the high level of the switch input; the central processing unit system identifies the signal and controls and outputs the signal.
Various switches and signals are connected to different channels of the programmable controller, according to a set program, different, real-time, delayed, timed or address signals are output through two lines according to the sequence, the speed, the high level and the like of switch input, and the central system can recognize the signals and then output control and output.
Preferably, the programmable controller defines different IDs for various switches or signals or addresses and signals are transmitted together to the central processor system through two lines.
Preferably, the programmable controller in step S1 is connected to an external knob code switch, and receives the change information from the knob code switch.
Referring to fig. 2, in one embodiment of the present application, a freely adjustable rotary encoder switch cooperating dimmer;
the knob coding switch has forward rotation, reverse rotation and pressing functions, and has actions of fast rotation, slow rotation, short pressing, long pressing and the like, generally, at least 4 wires are needed for wiring, and the knob coding switch is frequently used in places connected by circuit boards or short-distance application occasions, such as oscilloscopes, medical equipment, automobile volume switches and the like;
several pins of the knob coding switch are respectively connected with several channels of the programmable controller;
different square wave signals are respectively input to the programmable controller when the coding switch is rotated, and the programmable controller judges whether the coding switch rotates forwards or reversely according to two groups of different square waves; meanwhile, the intention of an operator is judged by judging the generation rate of the rotating square wave, for example, the operator needs to accurately adjust the light, the rotating speed is very slow, if the light is adjusted to have a great difference from the brightness to be achieved, the rotating speed is very fast, so the intention of the operator can be judged by the programmable controller according to the input square wave;
judging the intention of the user by pressing the long short message number, for example, turning off the light immediately when the long short message number is lightly pressed (time <2.5 seconds); turning off the lamp at 3 minutes according to 2.5-5 seconds; the long press 5.5-8.5 is a light-off with timing 30 minutes;
in addition, a set of dial switches is added, the first dial is 0, the lamp is turned off in a delayed mode in the above mode, if the first dial is 1, 3 minutes is changed to 15 minutes, 30 minutes is changed to 90 minutes, and the like.
In addition, a plurality of groups of different dial codes can be added to change the dimmer into a plurality of dimmers, so that a remote controller can respectively control a plurality of groups of lights.
According to the input of the different combinations of the switches, the programmable controller is preset according to a program so as to send different switch combination signals or PWM signals to the central system.
Meanwhile, the other groups of dial switches can be used, and users can define the rotating dimming rate and the like, so that more humanized input is realized.
The programmable controller realizes a dimming mode of multiple switch inputs by two lines, perfectly replaces 0-10V, reduces installation and construction, and simultaneously has no problem of voltage change caused by line loss of 0-10V, because the PWM signals with different change rules are transmitted in the example, the PWM signals are not voltage-reduced voltage signals like 0-10V.
Compared with the prior art, the high-efficiency programmable controller power supply and signal transmission system 1 of the invention is provided with a programmable controller for receiving switch input, switch change rate, voltage change rule and change rate, a power storage device for storing electric energy and supplying power to the system, and a central processing unit system for receiving signals from the programmable controller and carrying out corresponding control and output, and two lines are arranged between the programmable controller and the power storage device and between the power storage device and the central processing unit system for power supply, power storage and signal transmission, the power storage device is slowly charged in the power storage device through one of the circuits without influencing circuit signals in the time without switch input, and the reverse device is prevented from preventing the reverse power supply of the power storage device when the switch input, the circuit is greatly lost or the voltage is reduced, the power storage device is ensured to only supply power to the programmable controller, and signal transmission of the power supply line is not influenced, so that the number of the power lines can be effectively reduced, and various signal inputs or different intentions can be safely and accurately transmitted to a remote central processing unit system through two lines.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (4)
1. A high efficiency programmable controller power supply and signal transmission system characterized in that: the power supply system comprises a programmable controller, an electricity storage device and a central processing unit system, wherein the programmable controller is used for receiving switch input, switch change rate, voltage change rule and change rate, the electricity storage device is used for storing electric energy and supplying power to the system, and the central processing unit system is used for receiving signals from the programmable controller and performing corresponding control and output; the programmable controller and the electricity storage device and the central processing unit system are used for power supply, electricity storage and signal transmission through two lines; the programmable controller comprises a logic unit for judging various switches or voltage change rules, a storage unit for storing various switch states and change parameters stored in real time, and a clock unit for recording switch closing time, change time, various switch input sequence, voltage change time and real-time change parameters of the corresponding storage unit; two lines between the programmable controller and the power storage device and between the power storage device and the central processing unit system are also connected with a current-limiting reverse-prevention power supply circuit unit for preventing the power storage device from supplying power reversely and ensuring that the power storage device only supplies power to the programmable controller; the two lines between the programmable controller and the power storage device and between the power storage device and the central processing unit system comprise a first line and a second line; two ends of the first line are respectively connected with a Vss contact of the programmable controller and a central processing unit system, one end of the second line is connected with the central processing unit system, and the other end of the second line is divided into two paths and then is respectively connected with a PB0 contact and a VD0 contact of the programmable controller; a plurality of capacitor circuits for storing electricity and transient suppression diode circuits are connected in parallel between the VD0 contact shunts of the first line and the second line; a plurality of capacitor circuits, transient suppression diode circuits and resistor circuits for storing electricity are also connected in parallel to the PB0 contact branch of the second line; the storage device is a rechargeable battery or a capacitor.
2. A high efficiency programmable controller power supply and signal transmission mode is characterized in that: comprises the following steps of (a) carrying out,
s1: receiving various switch inputs, switch change rates, voltage change rules and change rate information from the outside by utilizing a programmable controller; the logic unit in the programmable controller judges the judgment of various switches or the change rule of voltage, simultaneously stores the states and change parameters of various switches in real time in the storage unit for comparison and on-off state recording, the clock unit of the programmable controller records the on-off time and the change time of the switches, the input sequence of various switches, the voltage change time and the real-time change parameters of the corresponding storage unit, and simultaneously outputs various switch signals or square wave signals or digital signals with different duty ratios according to the preset setting of a program;
s2: in step S1, when the programmable controller outputs a switching signal, a square wave signal with different duty ratios, or a digital signal, two power supply and signal transmission lines connected between the programmable controller and the power storage device and between the power storage device and the central processing unit system generate voltage changes;
s3: the programmable controller outputs different, real-time, delayed, timed or address-carrying signals to the central processing unit system through two lines according to the sequence, the speed and the high level of the switch input; the central processing unit system identifies the signal and controls and outputs the signal.
3. A high efficiency plc power supply and signal transmission scheme as claimed in claim 2 wherein: the programmable controller defines different IDs for various switches or signals or addresses are transmitted together with the signals to the central processor system through two lines.
4. A high efficiency plc power supply and signal transmission scheme as claimed in claim 2 wherein: the programmable controller in the step S1 is connected to the external knob code switch, and receives the change information from the knob code switch.
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| CN201810974065.4A CN109164733B (en) | 2018-08-24 | 2018-08-24 | High-efficiency programmable controller power supply and signal transmission system and method |
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| CN109164733B true CN109164733B (en) | 2021-03-19 |
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