CN105068020A - Power supply detection control system adopting single-chip microcomputer technology for control - Google Patents
Power supply detection control system adopting single-chip microcomputer technology for control Download PDFInfo
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- CN105068020A CN105068020A CN201510473602.3A CN201510473602A CN105068020A CN 105068020 A CN105068020 A CN 105068020A CN 201510473602 A CN201510473602 A CN 201510473602A CN 105068020 A CN105068020 A CN 105068020A
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Abstract
The invention discloses a power supply detection control system adopting a single-chip microcomputer technology for control. The power supply detection control system comprises a central processor, a solid-state relay control circuit and a test point detection input circuit, wherein the test point detection input circuit is connected with pins from D0 to D7 of the central processor, and the central processor is connected with the solid-state relay control circuit; the central processor is used for processing monitored control signals, reset signals, startup signals, switching signals and the like, sending out control commands, switching commands, alarm commands and the like, and completing the communication with various interfaces connected with the central processor; the solid-state relay control circuit is internally provided with a Hall element and a solid-state relay which are in lap joint in a main circuit; and the test point detection input circuit is provided with three keys including a STARTUP/RESET, a STOP and a MOD. The power supply detection control system can effectively guarantee the smooth progress of inversion, achieve mode selection, pause and stop functions according to actual needs, and can reliably complete the switching function within short time.
Description
Technical field
The present invention relates to power inverter control technology field, specifically, is a kind of power detecting control system adopting singlechip technology to control.
Background technology
The place powered is carried out adopting three-phase power electric, for ensureing to require that higher visual plant can normally work to power supply reliability, need access three-phase back-up source (three-phase UPS), during to avoid occurring unexpected power-off, important supply line's cisco unity malfunction and affect the normal work of whole using electricity system.
In the process of three-phase inversion, how to ensure carrying out smoothly of inversion, and the smooth switching between voltage after the former supply line of effective guarantee and inversion, within as far as possible few time, complete handoff functionality reliably, real is the most important thing of three-phase inversion system.
Summary of the invention
The object of the present invention is to provide a kind of power detecting control system adopting singlechip technology to control; carrying out in three-phase inversion process; carrying out smoothly of energy effective guarantee inversion; carry out the selection of various pattern according to actual needs, complete time-out or hold function; and within little time, handoff functionality can be completed reliably; make whole inversion system trouble-free operation, whole system has the characteristics such as scientific and reasonable, economical and practical.
The present invention is achieved through the following technical solutions: a kind of power detecting control system adopting singlechip technology to control, comprise central processing unit, solid-state relay control circuit, test point detection input circuit, described test point detects the D0-D7 pin that input circuit connects central processing unit, and described central processing unit connects solid-state relay control circuit;
Wherein, central processing unit, for the process to signals such as monitored control signal, reset, startup, switchings, and sends the instructions such as control, switching, warning; And complete coupled various interface communications;
Described solid-state relay control circuit, inside be provided with and be overlapped on Hall element in main circuit and solid-state relay, in handoff procedure, the zero crossing of output current is detected in real time by the Hall element be overlapped in main circuit, after sending out cut-off signals to one group of solid-state relay, when zero passage appears in output current, solid-state relay could be organized to another and send out and open signal; Can switching time be reduced like this, ensure reliably to switch.
Described test point detects input circuit, arranges three buttons: starting/reset key (RESET), stop key (STOP) and mode key (MOD); Send into single-chip microcomputer after the key-press status of described starting/reset key (RESET), stop key (STOP) and mode key (MOD) is detected, determine the control to inverter and system according to actual requirement.
Further to better implement the present invention, also comprise control and warning circuit, described control and warning circuit connect central processing unit; Described control and warning circuit, realize the handoff functionality between inverter voltage output with the output of former alternating voltage, and when occurring warning function when running bad.
Further to better implement the present invention, also comprise watchdog circuit, described watchdog circuit connects the RESET pin of central processing unit, described watchdog circuit, electrification reset and timing reset are carried out to central processing unit, to prevent running software out of control, prevents program fleet.
Further to better implement the present invention, also comprise interface circuit, described interface circuit connects the serial port of central processing unit.
Further to better implement the present invention, described interface circuit adopts RS485 interface chip or RS232 interface chip, serial port signal is converted to RS485 or RS232 level by Transistor-Transistor Logic level, forms semiduplex RS485 or RS232 communication interface.
Further to better implement the present invention, also comprise mouse key cover, described mouse key cover connects central processing unit, runs the operations such as modulation input for optimum configurations, the program of carrying out central processing unit.
Further to better implement the present invention, described central processing unit adopts 89C52 single-chip microcomputer.
The present invention compared with prior art, has the following advantages and beneficial effect:
The present invention is carrying out in three-phase inversion process; carrying out smoothly of energy effective guarantee inversion; carry out the selection of various pattern according to actual needs, complete time-out or hold function; and within little time, handoff functionality can be completed reliably; make whole inversion system trouble-free operation, whole system has the characteristics such as scientific and reasonable, economical and practical.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1:
A kind of power detecting control system adopting singlechip technology to control, carrying out in three-phase inversion process, carrying out smoothly of energy effective guarantee inversion, carry out the selection of various pattern according to actual needs, complete time-out or hold function, and within little time, handoff functionality can be completed reliably, make whole inversion system trouble-free operation, as shown in Figure 1, be provided with following structure especially: comprise central processing unit, solid-state relay control circuit, test point detects input circuit, described test point detects the D0-D7 pin that input circuit connects central processing unit, described central processing unit connects solid-state relay control circuit,
Wherein, central processing unit, for the process to signals such as monitored control signal, reset, startup, switchings, and sends the instructions such as control, switching, warning; And complete coupled various interface communications;
Described solid-state relay control circuit, inside be provided with and be overlapped on Hall element in main circuit and solid-state relay, in handoff procedure, the zero crossing of output current is detected in real time by the Hall element be overlapped in main circuit, after sending out cut-off signals to one group of solid-state relay, when zero passage appears in output current, solid-state relay could be organized to another and send out and open signal; Can switching time be reduced like this, ensure reliably to switch.
Described test point detects input circuit, arranges three buttons: starting/reset key (RESET), stop key (STOP) and mode key (MOD); Single-chip microcomputer is sent into after the key-press status of described starting/reset key (RESET), stop key (STOP) and mode key (MOD) is detected; determine the control to inverter and system according to actual requirement, described test point detects input circuit and also monitors the working condition of whole three-phase inversion system and fault and input central processing unit.
Embodiment 2:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, further to better implement the present invention, the handoff functionality between inverter voltage output with the output of former alternating voltage can be realized, and when occurring warning function when running bad, as shown in Figure 1, be provided with following structure especially: also comprise control and warning circuit, described control and warning circuit connect central processing unit; Described control and warning circuit, realize the handoff functionality between inverter voltage output with the output of former alternating voltage, and when occurring warning function when running bad.
Embodiment 3:
The present embodiment is at the enterprising one-step optimization in the basis of described any embodiment, further to better implement the present invention, as shown in Figure 1, be arranged to following structure especially: also comprise watchdog circuit, described watchdog circuit connects the RESET pin of central processing unit, and described watchdog circuit, carries out electrification reset and timing reset to central processing unit, to prevent running software out of control, prevent program fleet; Described watchdog circuit adopts MAX813, with an I/O mouth (P1.0) of central processing unit, timer is reset, when program richochet or when entering endless loop in the process of implementation, program can not reset it before timing is overflowed, MAX813 timing will be made to overflow and produce reset signal, central processing unit is reset.
Embodiment 4:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, as shown in Figure 1, is provided with following structure especially: further to better implement the present invention, also comprise interface circuit, and described interface circuit connects the serial port of central processing unit.
Embodiment 5:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, further to better implement the present invention, the following set-up mode of special employing: described interface circuit adopts RS485 interface chip or RS232 interface chip, serial port signal is converted to RS485 or RS232 level by Transistor-Transistor Logic level, forms semiduplex RS485 or RS232 communication interface.
Embodiment 6:
The present embodiment is at the enterprising one-step optimization in the basis of above-mentioned any embodiment, further to better implement the present invention, as shown in Figure 1, be provided with following structure especially: also comprise mouse key cover, described mouse key cover connects central processing unit, runs the operations such as modulation input for optimum configurations, the program of carrying out central processing unit.
Embodiment 7:
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, further to better implement the present invention, is arranged to following structure especially: described central processing unit adopts 89C52 single-chip microcomputer.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (7)
1. the power detecting control system adopting singlechip technology to control, it is characterized in that: comprise central processing unit, solid-state relay control circuit, test point detection input circuit, described test point detects the D0-D7 pin that input circuit connects central processing unit, and described central processing unit connects solid-state relay control circuit;
Wherein, central processing unit, for the process to signals such as monitored control signal, reset, startup, switchings, and sends the instructions such as control, switching, warning; And complete coupled various interface communications;
Described solid-state relay control circuit, inside be provided with and be overlapped on Hall element in main circuit and solid-state relay, in handoff procedure, the zero crossing of output current is detected in real time by the Hall element be overlapped in main circuit, after sending out cut-off signals to one group of solid-state relay, when zero passage appears in output current, solid-state relay could be organized to another and send out and open signal;
Described test point detects input circuit, arranges three buttons: starting/reset key, stop key and mode key; Send into single-chip microcomputer after the key-press status of described starting/reset key, stop key and mode key is detected, determine the control to inverter and system according to actual requirement.
2. a kind of power detecting control system adopting singlechip technology to control according to claim 1, is characterized in that: also comprise control and warning circuit, and described control and warning circuit connect central processing unit; Described control and warning circuit, realize the handoff functionality between inverter voltage output with the output of former alternating voltage, and when occurring warning function when running bad.
3. a kind of power detecting control system adopting singlechip technology to control according to claim 1, it is characterized in that: also comprise watchdog circuit, described watchdog circuit connects the RESET pin of central processing unit, described watchdog circuit, electrification reset and timing reset are carried out to central processing unit, to prevent running software out of control, prevent program fleet.
4. a kind of power detecting control system adopting singlechip technology to control according to claim 1, is characterized in that: also comprise interface circuit, and described interface circuit connects the serial port of central processing unit.
5. a kind of power detecting control system adopting singlechip technology to control according to claim 4, it is characterized in that: described interface circuit adopts RS485 interface chip or RS232 interface chip, serial port signal is converted to RS485 or RS232 level by Transistor-Transistor Logic level, forms semiduplex RS485 or RS232 communication interface.
6. a kind of power detecting control system adopting singlechip technology to control according to claim 1, it is characterized in that: also comprise mouse key cover, described mouse key cover connects central processing unit, runs the operations such as modulation input for optimum configurations, the program of carrying out central processing unit.
7. a kind of power detecting control system adopting singlechip technology to control according to any one of claim 1-6, is characterized in that: described central processing unit adopts 89C52 single-chip microcomputer.
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Citations (7)
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| JPH04333901A (en) * | 1991-05-10 | 1992-11-20 | Oki Electric Ind Co Ltd | Sequencer |
| JPH09292914A (en) * | 1996-04-25 | 1997-11-11 | Meidensha Corp | Monitor control system with virtual equipment function |
| CN202384827U (en) * | 2011-12-23 | 2012-08-15 | 甘肃三联自控成套设备有限责任公司 | Uninterruptible power system (UPS) maintenance instrument |
| CN203617782U (en) * | 2013-11-13 | 2014-05-28 | 保定天威集团有限公司 | Double-power-supply automatic switching controller based on ATmega16 single chip microcomputer |
| CN103843227A (en) * | 2011-08-03 | 2014-06-04 | 施耐德电气It公司 | Ups mechanical transfer relay arc mitigation |
| CN103995493A (en) * | 2014-05-19 | 2014-08-20 | 中国电子科技集团公司第四十五研究所 | Programmable logic power supply controller |
| CN104297698A (en) * | 2013-11-29 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | Detection device for power supply assembly |
-
2015
- 2015-08-05 CN CN201510473602.3A patent/CN105068020A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04333901A (en) * | 1991-05-10 | 1992-11-20 | Oki Electric Ind Co Ltd | Sequencer |
| JPH09292914A (en) * | 1996-04-25 | 1997-11-11 | Meidensha Corp | Monitor control system with virtual equipment function |
| CN103843227A (en) * | 2011-08-03 | 2014-06-04 | 施耐德电气It公司 | Ups mechanical transfer relay arc mitigation |
| CN202384827U (en) * | 2011-12-23 | 2012-08-15 | 甘肃三联自控成套设备有限责任公司 | Uninterruptible power system (UPS) maintenance instrument |
| CN203617782U (en) * | 2013-11-13 | 2014-05-28 | 保定天威集团有限公司 | Double-power-supply automatic switching controller based on ATmega16 single chip microcomputer |
| CN104297698A (en) * | 2013-11-29 | 2015-01-21 | 中国航空工业集团公司洛阳电光设备研究所 | Detection device for power supply assembly |
| CN103995493A (en) * | 2014-05-19 | 2014-08-20 | 中国电子科技集团公司第四十五研究所 | Programmable logic power supply controller |
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Application publication date: 20151118 |
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