CN2634710Y - Novel microcomputer control spare power supply automatic put-in device - Google Patents
Novel microcomputer control spare power supply automatic put-in device Download PDFInfo
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- CN2634710Y CN2634710Y CN 03221581 CN03221581U CN2634710Y CN 2634710 Y CN2634710 Y CN 2634710Y CN 03221581 CN03221581 CN 03221581 CN 03221581 U CN03221581 U CN 03221581U CN 2634710 Y CN2634710 Y CN 2634710Y
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Abstract
The utility model, which belongs to a control device of a device of electrical power transmission and distribution, relates to a novel automatic input device of computer control standby power. The communicating signal input terminal of an interflow input module in a control circuit is extracted to voltage-current semaphores through a field transformer; an electrical signal analog output terminal is connected with the electrical signal analog input terminal of a kernel control module through a mother board; the signal input terminal of the switching input module is connected with a location switch and a joint signal of the field and a relay action signal output terminal is connected with the relay which is in switching with the field control electric circuit switch; the input and output terminals of the electrical signal switching are connected with the input and output terminals of the electrical signal switching of the kernel control module; the liquid crystal control signal output terminal and the keyboard signal input terminal of the kernel control module are connected with the liquid crystal display and the keyboard through the mother board respectively. The utility model has a simple principle of action control, high reliability and is suitable for the connection modes of various present automatic input of the standby power.
Description
Technical field
The utility model belongs to the control device of power transmission and distribution device, relates to a kind of novel microcomputer control standby power automatic throw-in equipment.
Background technology
At present, the automatic throw-in equipment of emergency power supply of electric substation operation has two kinds of electromagnetic type and microcomputer types.The automatic throw-in equipment of emergency power supply of electromagnetic type since need by a large amount of machineries such as relay, electric equipment to stand-by power supply automatically the input process control, it takes up room greatly, equipment cost is high, troublesome maintenance, difficult realization Long-distance Control.And the microcomputer control standby power automatic throw-in equipment by microcomputor program to stand-by power supply automatically the input process control, its cost is low, be easy to realize Long-distance Control.But the control method that existing microcomputer control standby power automatic throw-in equipment is adopted is to design according to the motion flow that people propose fully, not in full conformity with the automatic basic principle that drops into of stand-by power supply, compare with the equipment of electromagnetic type, its operating principle complexity, operational mode limitation are big, and operational reliability can not get guaranteeing.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of and moves that control principle is simple, reliability is high, the novel microcomputer control standby power automatic throw-in equipment of wide accommodation.
Novel microcomputer control standby power automatic throw-in equipment of the present utility model, its control circuit comprises that kernel control module, of ac are adopted into module, switching value to be adopted into module, liquid crystal display and Keysheet module, and the motherboard as each intermodule signal interface channel.Wherein, of ac is adopted into the AC signal input of module and is introduced the voltage and current signal amount by on-the-spot instrument transformer, and its signal of telecommunication analog quantity output is connected with the signal of telecommunication analog quantity input of kernel control module through motherboard; Switching value is adopted to adopt into end into the signal of module and is connected with node signal with on-the-spot position switch, its relay action signal output is connected with the relay of field control power switching circuitry switching, and the input of its signal of telecommunication switching value, output are connected with the input of signal of telecommunication switching value, the output of kernel control module through motherboard; The liquid crystal control signal output ends of kernel control module and keyboard signal input are connected with Keysheet module with liquid crystal display through motherboard respectively.
Above-mentioned kernel control module is by the core cpu circuit, CPLD signal synthesis and expansion module, the frequency measurement module, communication interface module, data acquisition module, the static data memory, non-volatile data memory and real-time clock module are formed, and be connected with other parts by a signaling interface, the communication signal input/output terminal of described core cpu circuit is connected with signaling interface through communication interface module, analog signals importation on the signaling interface is connected with data acquisition module, the analog signals importation also is connected with the core cpu circuit through the frequency measurement module simultaneously, the input of opening into the amount of leaving signal of signaling interface is connected with expansion module with the CPLD signal synthesis, communication signal input on the signaling interface is connected with the core cpu circuit through communication interface module, the liquid crystal display control of signaling interface is connected with expansion module with the CPLD signal synthesis with the keyboard signal reading section, the output of data acquisition module by data/address bus respectively with the core cpu circuit, CPLD signal synthesis and expansion module, static data memory and non-volatile data memory are connected with real-time clock module, the address signal output of core cpu circuit by the address signal bus respectively with CPLD signal synthesis and expansion module, static data memory and non-volatile data memory are connected with real-time clock module, the control signal output ends of core cpu circuit is by also being connected respectively to CPLD signal synthesis and expansion module, in static data memory and non-volatile data memory and the real-time clock module, the control signal output ends of CPLD signal synthesis and expansion module is connected in the data acquisition module.
Novel microcomputer control standby power automatic throw-in equipment of the present utility model, its control circuit action control principle is simple, reliability is high, it meets the basic principle that stand-by power supply drops into automatically fully simultaneously, can be applicable to the mode of connection that existing various stand-by power supply drops into automatically.
Description of drawings
Fig. 1 is the structured flowchart of the utility model control circuit;
Fig. 2 is that the of ac of the utility model embodiment is adopted the circuit diagram into module;
Fig. 3 is that the switching value of the utility model embodiment is adopted the circuit diagram into module;
Fig. 4 is the circuit diagram of the motherboard part of the utility model embodiment;
Fig. 5 is the liquid crystal display of the utility model embodiment and the circuit diagram of Keysheet module;
Fig. 6 is the circuit structure block diagram of the kernel control module of the utility model embodiment;
Fig. 7 is the circuit diagram of the core cpu circuit in the kernel control module;
Fig. 8 is the CPLD signal synthesis in the kernel control module and the circuit diagram of expansion module;
Fig. 9 is the built-in function schematic diagram of CPLD chip in CPLD signal synthesis and the expansion module;
Figure 10 is the circuit diagram of the data acquisition module in the kernel control module;
Figure 11 is the static data memory in the kernel control module and the circuit diagram of non-volatile data memory and real-time clock module;
Figure 12 is the circuit diagram of the communication interface module in the kernel control module.
Embodiment
As shown in Figure 1, the control circuit of this novel microcomputer control standby power automatic throw-in equipment comprises that kernel control module, of ac are adopted into module, switching value to be adopted into module, liquid crystal display and Keysheet module, and the motherboard as each intermodule signal interface channel.
Wherein the of ac effect into module of adopting is that the electric current and voltage analog signal that the instrument transformer at scene is introduced is gathered, and is input to kernel control module.As shown in Figure 2 in the circuit of embodiment, the analog AC voltage and current signal PT1-1 of on-the-spot voltage current transformer output, PT1-2 etc., use AC transformer PT1-PT6 via measuring, CT1-CT6, isolate and be transformed into can supply computer Recognition+/-10V signal IA, IB, IC, UA, UB, UC, UL1～3, IL1～3 are connected to and allow kernel control module carry out data acquisition on a HEADER32 * 2 connecting terminal blocks under the control of CPU.
Switching value is adopted into the function one of module the switching value signal of on-the-spot 12V or 24V is isolated conversion, becoming can be by the electric signal of the reliable and stable identification of kernel control module, the 2nd, the 5V signal that master board is sent is driven amplification, the control relay output action, thus reach the purpose of controlling field apparatus.The circuit diagram of embodiment as shown in Figure 3.HEADER32 * 2 and CON6 and CON16 are respectively that switching value is adopted into module and the motherboard or the terminal board of extraneous contact.Opening into amount signal IN1 to IN12 and common port INCOM on the terminal board CON6 constitutes the loop, and the output after these amount of opening signals are isolated via photoelectric coupling 521-4 is guided on HEADER32 * 2, i.e. KI1～KI12, thereby and kernel control module get in touch.Signal on the terminal board CON16 is the amount of the leaving signal of control power equipment action, 8 tunnel actuating signal DL～DL8 that kernel control module sends are via HEADER32 * 2 interfaces, drive through 8 9013 triodes respectively, 521-4 light lotus root isolates, remove to drive 8 auxiliary relays, further amplify its driving force, its output signal is OUT1-1 on the terminal board CON16 to OUT8-2.Utilize the control of these 8 pairs of signals realizations to field apparatus.
Shown in Figure 4 is the motherboard circuit of the utility model embodiment, and it gets in touch the signal of each module.
The liquid crystal display of the utility model embodiment and Keysheet module circuit as shown in Figure 5, it provides the Interface Terminal JP1 with LCD MODULE, the signal that kernel control module offers this terminal has: 8 bit data bus D0～D7; Reset signal LCDRST; Read-write control signal WR, RD; Director data channel selecting signal A0; The chip selection signal LCD of liquid crystal control; Supply power voltage+5 and GND; And the negative pressure VO that is used for LCD backlight control.This circuit board also provides the Interface Terminal JP_CPU1 that gets in touch with the control signal of motherboard.Its signal that provides is controlled the signal L1～L7 of LED lamp on/off in addition except above-mentioned, serial communication signal 232R, 232T.Running mark lamp LED1～7 of device are normal in order to display unit, report to the police action, states such as electric power thus supplied, the RS232 serial ports J1 that the verifying unit of adjusting needs.Its control signal provides by JP_CPU1.
As shown in Figure 6, the kernel control module of control circuit is made up of following components: (1) core cpu circuit; (2) CPLD signal synthesis and expansion module; (3) data acquisition module and frequency measurement module; (4) static data memory and non-volatile data storage and real-time clock module; (5) communication interface module.Wherein CPU carries out various operations to each hardware formation under software control, and CPLD has filled up the signal difference of core CPU and peripheral components.
Shown in the core cpu circuit accompanying drawing 7.It comprises the chip U_DSP that a model is TMS320F240, and all signals in the circuit no matter how it changes irregularly, finally all are by its transmission or reception; 5043 chips are hardware watchdog circuit, can guarantee the software reliable reset when the device software fault, its control signal WDI, WD_SO, WS_SI, WDSCK are the control by CPU, output (referring to Fig. 8) after CPLD inside is via signal transformation, hand-reset signal ERST from keyboard, the signal that automatically resets from 5043, R1 realizes together that with the electrify restoration circuit that EC1 forms three kinds of devices under the different situations reset, and is promptly manual, fault powers on; The active crystal oscillator of 20M provides CPU the clock signal of work, exports the XTAL1/CLKIN pin of DSP to; The detail programming of device passes through the signal TRST of JTAG mouth, TMS, and TDI, TDO, EMU0, EMU1 realizes; Main signal on the U_DSP has 16 bit data bus D0～D15,16 bit address bus A0～A15, and read-write control signal DS, PS, IS, READY, R/W, W/R, WE utilizes these signals to finish control and visit to external equipment; Interrupt signal NMI, KI_INT, KEY_INT, INT_CAN utilizes external interrupt and above-mentioned signal to finish control to keyboard and communication together; Channel selecting signal ADA0～the ADA3 of AD module switches in order to the passage of control AD data acquisition module; CAP1, CAP2 are the output signals of frequency measurement module, in order to the measuring voltage frequency; The interface signal of pulse when HPULSO, SPULSO are the GPS school; BLIGHT, LIGHT1, LIGHT2, the light on and off of the LED lamp on the LIGHT3 control device panel; Signal DE, TXD, RXD, MCPRESET, TXORTS, TX1RTS, TX2RTS are the control signals of communication module.
As shown in Figure 9, the core of CPLD signal synthesis and expansion module circuit is the CPLD chip (functional module of its internal circuit as shown in Figure 9) that a model is XC95108.In this circuit, signal D0～D7 and A0～A7 are the data and address bus that DSP sends or accepts; LCD, LCDRD, LCDWE, LCD_C/D, LCDRST are the control signals of liquid crystal control module; The READY signal is in order to realize the sequential coupling of DSP when visiting external equipment at a slow speed; AD976 and R/C are the AD conversion starting signal and the chip selection signals of data acquisition and control module; 1644, DS, IS, DAT_CS are the read-write chip selection signals of data memory module; W/R, WE are the input signals that DSP offers the CPLD internal logic, in order to realize the access control to external equipment; WDT, WD_SI, WD_SO, WDSCK are the control logic signals of house dog; KI1～KI12, DL1～DL8, LOCAL, SET open into opening into the amount of leaving signal that the amount of leaving module provides; KEY1～KEY7 is a keyboard signal, at the inner access control logic of realizing DSP to it of CPLD.
The circuit diagram of data acquisition module as shown in figure 10, via the PTCT plate come out 12 the tunnel+/ ac analog Ua1, the Ub1 of 10v, Uc1, Ua2, Ub2, Uc2, U11, U12, Ibak1, Ibak2, Ibak3, Ibak4, obtain signal AN1～AN12 after filtering radio-frequency component via the RC low-pass filter network, with+5V, 0V, 6V ,-6V are connected on the MX7506 together, and MX 7506 can select the output of a road in 16 road input analog amount signals by ADAO～4 channel selecting signals that CPU sends.To export analog signal and receive 16 bit A/D converters, it will be become digital quantity, thereby make various digital processing modes feasible.The startup switching signal R/C of AD and conversion results read signal AD976 and are comprehensively formed in CPLD inside by read-write control signal and the address bus of CPU.Result's output is on data/address bus D0～D15.
The circuit of static data memory and non-volatile data storage and real-time clock module as shown in figure 11, wherein static data storage chip CY7c1021-15vc is used for the device data acquisition, original value in the computational process, median and result's storage, non-volatile data storage chip DS1644 is used for the analog quantity of fault front and back and the record of action message.Signal A0～A15, D0～D15 are respectively address bus and data/address bus, and read-write control signal is exactly the read-write WE that DSP sends, W/R.Chip selection signal PS, DAR_CS, 1644 in order to select the visit to specific peripheral hardware.
The circuit of communication interface module as shown in figure 14, on the one hand, in order to keep the compatibility with traditional communication modes, device has kept and has had RS232/485 standard hardware interface, realizes by the SCI interface that DSP carries.On the other hand, because some characteristics and the function of CAN bus interface itself make it be more suitable for being used for the power system device networking, for the ability to communicate of intensifier in the comprehensive automation of electric power system system, device has designed the field bus communication interface that meets the CAN2.0B agreement.For traditional RS232/485 communication mode, the TXD that the SCI mouth of CPU sends, RXD becomes standard traffic level via MAX232 with the MAX485 level conversion with the DE signal, and wherein decide the signal of communication output of device by jumper switch SW1 is any in these two kinds of agreements actually.For the field bus communication mode of CAN agreement, device adopts CAN controller MCP2510 and the CAN driver 82c250 that has the SPI interface.MCP2510 is the CAN controller of band SPI interface, with the CAN2.0A/B protocol-compliant, can transmission, the message of acceptance criteria and extended data structure, and bit rate can reach 1Mb/s, is to realize by industrial standard SPI interface to its control.Chip selection signal MCP510 is in order to select the control to MCP2510.SO, SI, SCK are the SPI interfaces of standard, link to each other with the SPI interface of DSP, and be that INT_CAN sends interruption to DSP, thereby handles when receiving the external communication data.MCPRESET is used for the control that resets to MCP2510.TXORTS, TX1RTS, TX2RTS are the enabling signal of DSP when externally sending data.Signal is converted to by MCP2510 after the data that meet the CAN protocol format from TxCan, and the RxCan pin outputs to 82c250, and it is become to meet the physical level standard of CAN agreement from the CMOS level conversion.82c250 is the driving interface of CAN protocol controller and physical bus, for bus provides different transmitting capacity and provides different receiving abilities to the CAN controller.
Claims (2)
1, a kind of novel microcomputer control standby power automatic throw-in equipment, it is characterized in that: its control circuit comprises that kernel control module, of ac are adopted into module, switching value and adopts into module, liquid crystal display and Keysheet module, and the motherboard as each intermodule signal interface channel, wherein
Of ac is adopted into the AC signal input of module and is introduced the voltage and current signal amount by on-the-spot instrument transformer, and its signal of telecommunication analog quantity output is connected with the signal of telecommunication analog quantity input of kernel control module through motherboard; Switching value is adopted to adopt into end into the signal of module and is connected with node signal with on-the-spot position switch, its relay action signal output is connected with the relay of field control power switching circuitry switching, and the input of its signal of telecommunication switching value, output are connected with the input of signal of telecommunication switching value, the output of kernel control module through motherboard; The liquid crystal control signal output ends of kernel control module and keyboard signal input are connected with Keysheet module with liquid crystal display through motherboard respectively.
2, novel microcomputer control standby power automatic throw-in equipment according to claim 1, it is characterized in that: described kernel control module is by the core cpu circuit, CPLD signal synthesis and expansion module, the frequency measurement module, communication interface module, data acquisition module, the static data memory, non-volatile data memory and real-time clock module are formed, and be connected with other parts by a signaling interface, the communication signal input/output terminal of described core cpu circuit is connected with signaling interface through communication interface module, analog signals importation on the signaling interface is connected with data acquisition module, the analog signals importation also is connected with the core cpu circuit through the frequency measurement module simultaneously, the input of opening into the amount of leaving signal of signaling interface is connected with expansion module with the CPLD signal synthesis, communication signal input on the signaling interface is connected with the core cpu circuit through communication interface module, the liquid crystal display control of signaling interface is connected with expansion module with the CPLD signal synthesis with the keyboard signal reading section, the output of data acquisition module by data/address bus respectively with the core cpu circuit, CPLD signal synthesis and expansion module, static data memory and non-volatile data memory are connected with real-time clock module, the address signal output of core cpu circuit by the address signal bus respectively with CPLD signal synthesis and expansion module, static data memory and non-volatile data memory are connected with real-time clock module, the control signal output ends of core cpu circuit is by also being connected respectively to CPLD signal synthesis and expansion module, in static data memory and non-volatile data memory and the real-time clock module, the control signal output ends of CPLD signal synthesis and expansion module is connected in the data acquisition module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221581 CN2634710Y (en) | 2003-05-02 | 2003-05-02 | Novel microcomputer control spare power supply automatic put-in device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221581 CN2634710Y (en) | 2003-05-02 | 2003-05-02 | Novel microcomputer control spare power supply automatic put-in device |
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| CN2634710Y true CN2634710Y (en) | 2004-08-18 |
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| CN 03221581 Expired - Fee Related CN2634710Y (en) | 2003-05-02 | 2003-05-02 | Novel microcomputer control spare power supply automatic put-in device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365912C (en) * | 2006-03-16 | 2008-01-30 | 江苏金智科技股份有限公司 | Automatic input device and control method for emergency power supply of bus for middle-low voltage section factory |
| CN103715665A (en) * | 2013-12-20 | 2014-04-09 | 柳州腾龙煤电科技股份有限公司 | Mining-used low-voltage switch comprehensive protector |
| CN110806993A (en) * | 2019-11-05 | 2020-02-18 | 积成电子股份有限公司 | Customized modbus communication method and low-coupling telecontrol device using same |
-
2003
- 2003-05-02 CN CN 03221581 patent/CN2634710Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365912C (en) * | 2006-03-16 | 2008-01-30 | 江苏金智科技股份有限公司 | Automatic input device and control method for emergency power supply of bus for middle-low voltage section factory |
| CN103715665A (en) * | 2013-12-20 | 2014-04-09 | 柳州腾龙煤电科技股份有限公司 | Mining-used low-voltage switch comprehensive protector |
| CN110806993A (en) * | 2019-11-05 | 2020-02-18 | 积成电子股份有限公司 | Customized modbus communication method and low-coupling telecontrol device using same |
| CN110806993B (en) * | 2019-11-05 | 2021-06-01 | 积成电子股份有限公司 | Customized modbus communication method and low-coupling telecontrol device using same |
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| C14 | Grant of patent or utility model | ||
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040818 Termination date: 20100502 |