CN205450172U - Electric power grounding wire monitor - Google Patents
Electric power grounding wire monitor Download PDFInfo
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- CN205450172U CN205450172U CN201620232913.0U CN201620232913U CN205450172U CN 205450172 U CN205450172 U CN 205450172U CN 201620232913 U CN201620232913 U CN 201620232913U CN 205450172 U CN205450172 U CN 205450172U
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- 238000001514 detection method Methods 0.000 claims description 28
- 230000005611 electricity Effects 0.000 claims description 15
- 230000007717 exclusion Effects 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
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Abstract
The utility model provides an electric power grounding wire monitor, includes the monitor of being connected with the ground wire manager, the monitor includes and square shell and backplate is provided with digitron display screen, pilot lamp and photoswitch in the front of shell, is provided with the backplate groove in the back of shell, is provided with the contact switch at the backplate inslot, be provided with binding post on the backplate, the backplate is the same with the shape size in backplate groove, and the backplate passes through the draw -in groove with the backplate groove and links to each other, be provided with battery, control circuit board, GPS receipt locator and wireless module in the monitor shell, the battery links to each other with control circuit board's power input end, and GPS receives the locator and links to each other with control circuit board, and wireless module is continuous with control circuit board's wireless output. The utility model discloses can rely on GPS to accept the locator and fix a position, through 485 communication module and wireless module realization remote monitoring and control, whether connect well between the audio -visual display device of meeting to can concrete judgement where organize ground wire disconnect.
Description
Technical field
This utility model relates to power line detection equipment technical field, specifically a kind of electricity earthing cable monitor.
Background technology
At present, work for ground wire installing, the traditional report mode the most only shown with telephone report, writing record, paper by field service personnel, in this traditional manual work flow process, there is substantial amounts of unreliable factor, often due to artificial negligence, usually occur that earth lead is plucked in leakage, the mistake of earth lead is plucked in leakage, bring huge economic loss, or even threat to life to power system, also have impact on the normal electricity consumption of power consumer simultaneously；Often there is mistake or loss in the data record of prior art.
Utility model content
In order to solve the problems referred to above, this utility model provides a kind of electricity earthing cable monitor.
The technical scheme in the invention for solving the technical problem is: a kind of electricity earthing cable monitor, including the monitor being connected with host computer, smart grounding line and on-the-spot auxiliary positioning terminal, it is characterized in that, described monitor includes square shell and backboard, the front of described shell is provided with digitron display screen, display lamp and light-operated switch, disposed behind at described shell has backboard groove, is provided with contact switch in described backboard groove；Being provided with binding post on described backboard, described backboard is identical with the shape size of backboard groove, and backboard is connected by draw-in groove with backboard groove；Accumulator, control circuit plate, GPRS module, GPS module and micro-radio set it is provided with in monitor shell, described accumulator is connected with the power input of control circuit plate, described GPS module is connected with the position receiver end of control circuit plate, the input of GPRS module is connected with the signal output part of control circuit plate, the outfan of GPRS module is connected with host computer, the outfan of described micro-radio set is connected with the wireless input of control circuit plate, and the input of micro-radio set is connected with on-the-spot auxiliary positioning terminal.
Further, described display lamp includes status lamp, morse signal light and ground wire lamp.
Further, described contact switch includes ground wire detection contact, A phase detects contact, B phase detects contact, C phase detects contact, GND detects contact, 485+ contact, 485-contact, COM_CS contact, VDD_IN contact and VDD_OUT contact；Described binding post includes GND detection binding post, ground wire detection binding post, A phase detects binding post, B phase detects binding post, C phase detects binding post, 485+ binding post, 485-binding post, COM_CS binding post, VDD_IN binding post and VDD_OUT binding post.
Further, when described backboard is connected with backboard groove, the position of a binding post on the position correspondence backboard groove of a contact switch on backboard.
Further, described control circuit plate includes controlling loop, controls loop and includes that MCU main control chip circuit, charactron drive display circuit, photoswitch circuit, switching value input circuit and 485 communicating circuits；Described charactron drives the input of display circuit to be connected with the outfan of MCU main control chip circuit, and charactron drives the outfan of display circuit to be connected with digitron display screen；The input of described photoswitch circuit is connected with light-operated switch, and the outfan of photoswitch circuit is connected with the input of MCU main control chip circuit；The input of described switching value input circuit is connected with contact switch, and the outfan of switching value input circuit is connected with the input of MCU main control chip circuit；The input of 485 described communicating circuits is connected with the outfan of MCU main control chip circuit.
Further, described MCU main control chip circuit specifically includes ATMEGA162-44A chip and the peripheral circuit being made up of crystal oscillator Y1, electric capacity C15 and electric capacity C16；
The PA0 pin of ATMEGA162-44A chip is connected with status lamp, and the PA1 pin of ATMEGA162-44A chip is connected with morse signal light, and the PA2 pin of ATMEGA162-44A chip is connected with ground wire lamp；
The PB2 pin of ATMEGA162-44A chip is connected with the input of GPS receiver localizer；The PE2 pin of ATMEGA162-44A chip is connected with micro-radio set.
Further, described charactron drives display circuit to specifically include: SN74LS573 latch, exclusion and LED chip；D0, D1, D2, D3, D4, D5, D6 and D7 pin of described SN74LS573 latch connects PA0, PA1, PA2, PA3, PA4, PA5, PA6 and PA7 pin of ATMEGA162-44A chip；Q0, Q1, Q2, Q3, Q4, Q5, Q6 and Q7 pin of SN74LS573 latch run in resistance input, exclusion output termination LED chip A, B, C, D, E, F, G and DP pin, the COM pin of described LED chip connects+3.3V voltage.
Further, described photoswitch circuit includes resistance R1, resistance R2, diode D1, audion Q1 and photosensitive receiving tube Q2；One end of described resistance R1 is connected with one end of resistance R2 and connects+3.3V voltage, the other end of resistance R1 is connected with the positive pole of diode D1 and the colelctor electrode of audion Q1, the base stage of audion Q1 is the signal input part of photoswitch circuit and is connected with light-operated switch, the negative pole of diode D1 is connected with the base stage of audion Q1, the emitter stage of audion Q1 is connected with the emitter stage of photosensitive receiving tube Q2 and ground connection, and the other end of resistance R2 is connected with the colelctor electrode of photosensitive receiving tube Q2 and is the signal output part of photoswitch circuit and is connected with the PD3 pin of ATMEGA162-44A chip.
Further, described switching value input circuit includes ground wire detection input circuit, A phase detects input circuit, B phase detects input circuit and detects input circuit with C phase；
Described ground wire detection input circuit includes resistance R3, resistance R4, resistance R5, electric capacity C1, electric capacity C2, electric capacity C3 and operational amplifier chip OP1；One end of described electric capacity C1 is connected with one end of one end of resistance R3 and resistance R4 and connects+3.3V voltage, the other end of electric capacity C1 is connected with the CATHODE pin of the other end, one end of electric capacity C2 and the operational amplifier chip OP1 of resistance R4 and detects contact with the ground wire on monitor shell and is connected, and the other end of resistance R3 is connected with the other end of electric capacity C2 and the ANODE pin of operational amplifier chip OP1；The VDD pin of operational amplifier chip OP1 is connected with one end of electric capacity C3 and connects+3.3V voltage, the other end ground connection of electric capacity C3, the VO pin of operational amplifier chip OP1 is connected with the PC0 pin of one end of resistance R5 and ATMEGA162-44A chip, another termination+3.3V voltage of resistance R5；
Described A phase detects input circuit and includes resistance R6, resistance R7, resistance R8, electric capacity C4, electric capacity C5, electric capacity C6 and operational amplifier chip OP2；It is identical with the circuit structure of ground wire detection input circuit that described A phase detects the circuit structure of input circuit, A phase detects the signal input part of input circuit and detects contact with the A phase on monitor shell and be connected, and signal output part is connected with the PC1 pin of ATMEGA162-44A chip；
Described B phase detects input circuit and includes resistance R9, resistance R10, resistance R11, electric capacity C7, electric capacity C8, electric capacity C9 and operational amplifier chip OP3；It is identical with the circuit structure of ground wire detection input circuit that described B phase detects the circuit structure of input circuit, B phase detects the signal input part of input circuit and detects contact with the B phase on monitor shell and be connected, and signal output part is connected with the PC2 pin of ATMEGA162-44A chip；
Described C phase detects input circuit and includes resistance R12, resistance R13, resistance R14, electric capacity C10, electric capacity C11, electric capacity C12 and operational amplifier chip OP4；It is identical with the circuit structure of ground wire detection input circuit that described C phase detects the circuit structure of input circuit, C phase detects the signal input part of input circuit and detects contact with the C phase on monitor shell and be connected, and signal output part is connected with the PC3 pin of ATMEGA162-44A chip.
Further, 485 described communicating circuits include RW486L chip and critesistor RL；The RO pin of described RW486L chip is connected with the RXD0 pin of ATMEGA162-44A chip, the DI pin of RW486L chip is connected with the TXD0 pin of ATMEGA162-44A chip, and the DE pin of RW486L chip is connected with RE pin and is connected with the PD5 pin of ATMEGA162-44A chip；The VCC pin of described RW486L chip connects+3.3V voltage, the L1 pin of RW486L chip is connected with the 485+ contact on monitor shell, the L2 pin of RW486L chip is connected with one end of critesistor RL, and the other end of critesistor RL is connected with the 485-contact on monitor shell.
The beneficial effects of the utility model are: a kind of electric power temporary ground wire monitor that this utility model provides, by switching value input circuit, ground wire, A phase, B phase and the C phase connection state in electric lines of force job site are detected, if during ground wire hitching, ground wire lantern festival is bright, if ground wire lamp goes out, then represent that earth lead does not mounts, and can judge whether earth lead mounts intuitively.When ground wire lamp goes out, light-operated switch can be pressed, then can show on digitron display screen which group ground wire does not mounts, can judge which group ground wire there is a problem accurately.Judging or being accurately positioned which group ground wire is to be positioned by GPS module of the present utility model, owing to the position error of GPS module is 5-30 rice, and general minimum range between ground wire and ground wire is about 50 meters, so utilizing GPS module to carry out location fully meet requirement.
The wireless output port PE2 pin of this utility model ATMEGA162-44A chip is connected with GPRS module, can be communicated with external equipment by wireless, this utility model also can carry out 485 wired connections by 485 telecommunication circuits and external equipment, it is achieved multiple communication modes.
Accompanying drawing explanation
Fig. 1 is the Facad structure figure of this utility model shell；
Fig. 2 is the structure figure of this utility model shell；
Fig. 3 is the structure chart after backboard of the present utility model is connected with shell；
Fig. 4 is modular structure connection figure of the present utility model；
Fig. 5 is control loop structure connection figure of the present utility model；
Fig. 6 is MCU main control chip circuit figure of the present utility model；
Fig. 7 is that charactron of the present utility model drives display circuit circuit diagram；
Fig. 8 is photoswitch circuit circuit diagram of the present utility model；
Fig. 9 is that ground wire of the present utility model detects input circuit circuit diagram；
Figure 10 is that A phase of the present utility model detects input circuit circuit diagram；
Figure 11 is that B phase of the present utility model detects input circuit circuit diagram；
Figure 12 is that C phase of the present utility model detects input circuit circuit diagram；
Figure 13 is 485 communicating circuit circuit diagrams of the present utility model；
nullIn figure: 1、Shell，101、GND contact，102、Ground wire detection contact，103、C phase detects contact，104、B phase detects contact，105、A phase detects contact，106、485+ contact，107、485-contact，108、COM_CS contact，109、VDD_IN contact，110、VDD_OUT contact，2、Digitron display screen，3、Status lamp，4、Morse signal light，5、Light-operated switch，6、Ground wire lamp，7、Backboard，701、GND detects binding post，702、Ground wire detection binding post，703、C phase detects binding post，704、B phase detects binding post，705、A phase detects binding post，706、485+ binding post，707、485-binding post，708、COM_CS binding post，709、VDD_IN binding post，710、VDD_OUT binding post，8、Backboard groove，81，Draw-in groove.
Detailed description of the invention
As shown in figure 1 to figure 13, this utility model includes square shell 1 and backboard 7, be provided with digitron display screen 2, status lamp 3, morse signal light 4, ground wire lamp 6 and light-operated switch 5 in the front of shell 1, disposed behind at shell 1 has backboard groove 8, backboard groove 8 in be provided with contact switch.
As in figure 2 it is shown, contact switch include GND contact 101, ground wire detection contact 102, C phase detects contact 103, B phase detects contact 104, A phase detects contact 105,485+ contact 106,485-contact 107, COM_CS contact 108, contact 110, VDD_IN contact 109 and VDD_OUT.
It is provided with binding post on backboard 7, as it is shown on figure 3, binding post includes GND detection binding post 701, ground wire detection binding post 702, C phase detects binding post 703, B phase detects binding post 704, A phase detects binding post 705,485+ binding post 706,485-binding post 707, COM_CS binding post 708, VDD_IN binding post 709 and VDD_OUT binding post 710.For the ease of assigning on shell by backboard, arranging backboard 7 identical with the shape size of backboard groove 8, backboard 7 is connected by draw-in groove 81 with backboard groove 8.nullWhen backboard 7 is arranged on backboard groove 8，On backboard, the position of GND contact 101 overlaps with the position of GND detection binding post 701 on backboard groove，The position of ground wire detection contact 102 overlaps with the position of ground wire detection binding post 702 on backboard groove，C phase detects the position position of contact 103 detecting binding post 703 with C phase on backboard groove and overlaps，B phase detects the position position of contact 104 detecting binding post 704 with B phase on backboard groove and overlaps，A phase detects the position position of contact 105 detecting binding post 705 with A phase on backboard groove and overlaps，The position of 485+ contact 106 overlaps with the position of 485+ binding post 706 on backboard groove，The position of 485-contact 107 overlaps with the position of 485-binding post 707 on backboard groove，The position of COM_CS contact 108 overlaps with the position of COM_CS binding post 708 on backboard groove，The position of VDD_IN contact 109 overlaps with the position of VDD_IN binding post 709 on backboard groove，The position of VDD_OUT contact 110 overlaps with the position of VDD_OUT binding post 710 on backboard groove.
Accumulator, control circuit plate, GPRS module, GPS module and micro-radio set it is provided with in monitor shell, as shown in Figure 4, accumulator is connected with the power input of control circuit plate, GPS module is connected with the position receiver end of control circuit plate, the input of GPRS module is connected with the signal output part of control circuit plate, the outfan of GPRS module is connected with host computer, the outfan of micro-radio set is connected with the wireless input of control circuit plate, and the input of micro-radio set is connected with on-the-spot auxiliary positioning terminal.
Control circuit plate includes controlling loop, as it is shown in figure 5, control loop to include that MCU main control chip circuit, charactron drive display circuit, photoswitch circuit, switching value input circuit and 485 communicating circuits；Charactron drives the input of display circuit to be connected with the outfan of MCU main control chip circuit, and charactron drives the outfan of display circuit to be connected with digitron display screen；The input of photoswitch circuit is connected with light-operated switch, and the outfan of photoswitch circuit is connected with the input of MCU main control chip circuit；The input of switching value input circuit is connected with contact switch, and the outfan of switching value input circuit is connected with the input of MCU main control chip circuit；The input of 485 communicating circuits is connected with the outfan of MCU main control chip circuit.
As shown in Figure 6, MCU main control chip circuit specifically includes ATMEGA162-44A chip and the peripheral circuit being made up of crystal oscillator Y1, electric capacity C15 and electric capacity C16.
The PA0 pin of ATMEGA162-44A chip is connected with status lamp 2, the PA1 pin of ATMEGA162-44A chip is connected with morse signal light 4, the PA2 pin of ATMEGA162-44A chip is connected with ground wire lamp 6, when status lamp 2 is bright, represent that monitor is in duty, when status lamp 2 goes out, represent monitor power-off；When morse signal light 4 is bright, represent that monitor is connected with outside communication, when morse signal light 4 goes out, represent that monitor disconnects with outside communication；When ground wire lamp 6 is bright, represent that ground wire is connected with monitor, when ground wire lamp 6 goes out, represent that ground wire disconnects with monitor.
The PB2 pin of ATMEGA162-44A chip is connected with the input of GPS receiver localizer；The PE2 pin of ATMEGA162-44A chip is connected with GPRS module, and GPRS module can send the data to host computer or the mobile terminal of outside.
As it is shown in fig. 7, charactron drives display circuit to specifically include: SN74LS573 latch, exclusion and LED chip；D0, D1, D2, D3, D4, D5, D6 and D7 pin of SN74LS573 latch connects PA0, PA1, PA2, PA3, PA4, PA5, PA6 and PA7 pin of ATMEGA162-44A chip；Q0, Q1, Q2, Q3, Q4, Q5, Q6 and Q7 pin of SN74LS573 latch run in resistance input, exclusion output termination LED chip A, B, C, D, E, F, G and DP pin, the COM pin of LED chip connects+3.3V voltage.
As shown in Figure 8, photoswitch circuit includes resistance R1, resistance R2, diode D1, audion Q1 and photosensitive receiving tube Q2；One end of resistance R1 is connected with one end of resistance R2 and connects+3.3V voltage, the other end of resistance R1 is connected with the positive pole of diode D1 and the colelctor electrode of audion Q1, the base stage of audion Q1 is the signal input part of photoswitch circuit and is connected with light-operated switch, the negative pole of diode D1 is connected with the base stage of audion Q1, the emitter stage of audion Q1 is connected with the emitter stage of photosensitive receiving tube Q2 and ground connection, and the other end of resistance R2 is connected with the colelctor electrode of photosensitive receiving tube Q2 and is the signal output part of photoswitch circuit and is connected with the PD3 pin of ATMEGA162-44A chip.
Switching value input circuit includes that ground wire detection input circuit, A phase detect input circuit, B phase detects input circuit and detects input circuit with C phase, the circuit structure of ground wire detection input circuit detects the circuit structure of input circuit with A phase, B phase detects the circuit structure of input circuit and C phase to detect the circuit structure of input circuit identical.
As it is shown in figure 9, ground wire detection input circuit includes resistance R3, resistance R4, resistance R5, electric capacity C1, electric capacity C2, electric capacity C3 and operational amplifier chip OP1；One end of electric capacity C1 is connected with one end of resistance R3 and one end of resistance R4 and connects+3.3V voltage, the other end of electric capacity C1 is connected with the CATHODE pin of the other end, one end of electric capacity C2 and the operational amplifier chip OP1 of resistance R4 and detects contact with the ground wire on monitor shell and is connected, and the other end of resistance R3 is connected with the other end of electric capacity C2 and the ANODE pin of operational amplifier chip OP1；The VDD pin of operational amplifier chip OP1 is connected with one end of electric capacity C3 and connects+3.3V voltage, the other end ground connection of electric capacity C3, the PC0 pin that the VO pin of operational amplifier chip OP1 is connected with ATMEGA162-44A chip with one end of resistance R5 is connected, another termination+3.3V voltage of resistance R5.
As shown in Figure 10, A phase detects input circuit and includes resistance R6, resistance R7, resistance R8, electric capacity C4, electric capacity C5, electric capacity C6 and operational amplifier chip OP2；One end of electric capacity C4 is connected with one end of resistance R6 and one end of resistance R7 and connects+3.3V voltage, the other end of electric capacity C4 is connected with the CATHODE pin of the other end, one end of electric capacity C5 and the operational amplifier chip OP2 of resistance R7 and detects contact 105 with the A phase on monitor shell and is connected, and the other end of resistance R6 is connected with the other end of electric capacity C5 and the ANODE pin of operational amplifier chip OP2；The VDD pin of operational amplifier chip OP2 is connected with one end of electric capacity C6 and connects+3.3V voltage, the other end ground connection of electric capacity C6, the VO pin of operational amplifier chip OP2 is connected with one end of resistance R8 and is connected with the PC1 pin of ATMEGA162-44A chip, another termination+3.3V voltage of resistance R8.
As shown in figure 11, B phase detects input circuit and includes resistance R9, resistance R10, resistance R11, electric capacity C7, electric capacity C8, electric capacity C9 and operational amplifier chip OP3；One end of electric capacity C7 is connected with one end of resistance R9 and one end of resistance R10 and connects+3.3V voltage, the other end of electric capacity C7 is connected with the CATHODE pin of the other end, one end of electric capacity C8 and the operational amplifier chip OP3 of resistance R10 and detects contact 104 with the B phase on monitor shell and is connected, and the other end of resistance R9 is connected with the other end of electric capacity C8 and the ANODE pin of operational amplifier chip OP3；The VDD pin of operational amplifier chip OP3 is connected with one end of electric capacity C9 and connects+3.3V voltage, the other end ground connection of electric capacity C9, the VO pin of operational amplifier chip OP3 is connected with one end of resistance R11 and is connected with the PC2 pin of ATMEGA162-44A chip, another termination+3.3V voltage of resistance R11.
As shown in figure 12, C phase detects input circuit and includes resistance R12, resistance R13, resistance R14, electric capacity C10, electric capacity C11, electric capacity C12 and operational amplifier chip OP4；One end of electric capacity C10 is connected with one end of resistance R12 and one end of resistance R13 and connects+3.3V voltage, the other end of electric capacity C10 is connected with the CATHODE pin of the other end, one end of electric capacity C11 and the operational amplifier chip OP4 of resistance R13 and detects contact 103 with the C phase on monitor shell and is connected, and the other end of resistance R12 is connected with the other end of electric capacity C11 and the ANODE pin of operational amplifier chip OP4；The VDD pin of operational amplifier chip OP4 is connected with one end of electric capacity C12 and connects+3.3V voltage, the other end ground connection of electric capacity C12, the VO pin of operational amplifier chip OP4 is connected with one end of resistance R14 and is connected with the PC3 pin of ATMEGA162-44A chip, another termination+3.3V voltage of resistance R14.
As shown in figure 13,485 communicating circuits include RW486L chip and critesistor RL；The RO pin of RW486L chip is connected with the RXD0 pin of ATMEGA162-44A chip, the DI pin of RW486L chip is connected with the TXD0 pin of ATMEGA162-44A chip, and the DE pin of RW486L chip is connected with RE pin and is connected with the PD5 pin of ATMEGA162-44A chip；The VCC pin of RW486L chip connects+3.3V voltage, the L1 pin of RW486L chip is connected with the 485+ contact 106 on monitor shell, the L2 pin of RW486L chip is connected with one end of critesistor RL, and the other end of critesistor RL is connected with the 485-contact 107 on monitor shell.485 communications can be carried out with outside host computer or mobile terminal by 485+ the binding post 706 and 485-binding post 707 on backboard 7.
Although detailed description of the invention of the present utility model is described by the above-mentioned accompanying drawing that combines; but the not restriction to this utility model protection domain; on the basis of the technical solution of the utility model, those skilled in the art need not to pay various amendments or deformation that creative work can make still within protection domain of the present utility model.
Claims (10)
1. an electricity earthing cable monitor, including the monitor being connected with host computer, smart grounding line and on-the-spot auxiliary positioning terminal, it is characterized in that, described monitor includes square shell and backboard, the front of described shell is provided with digitron display screen, display lamp and light-operated switch, disposed behind at described shell has backboard groove, is provided with contact switch in described backboard groove；Being provided with binding post on described backboard, described backboard is identical with the shape size of backboard groove, and backboard is connected by draw-in groove with backboard groove；Accumulator, control circuit plate, GPRS module, GPS module and micro-radio set it is provided with in monitor shell, described accumulator is connected with the power input of control circuit plate, described GPS module is connected with the position receiver end of control circuit plate, the input of GPRS module is connected with the signal output part of control circuit plate, the outfan of GPRS module is connected with host computer, the outfan of described micro-radio set is connected with the wireless input of control circuit plate, and the input of micro-radio set is connected with on-the-spot auxiliary positioning terminal.
A kind of electricity earthing cable monitor the most according to claim 1, is characterized in that, described display lamp includes status lamp, morse signal light and ground wire lamp.
A kind of electricity earthing cable monitor the most according to claim 1, it is characterized in that, described contact switch includes ground wire detection contact, A phase detects contact, B phase detects contact, C phase detects contact, GND detects contact, 485+ contact, 485-contact, COM_CS contact, VDD_IN contact and VDD_OUT contact；Described binding post includes GND detection binding post, ground wire detection binding post, A phase detects binding post, B phase detects binding post, C phase detects binding post, 485+ binding post, 485-binding post, COM_CS binding post, VDD_IN binding post and VDD_OUT binding post.
A kind of electricity earthing cable monitor the most according to claim 3, is characterized in that, when described backboard is connected with backboard groove, and the position of a binding post on the position correspondence backboard groove of a contact switch on backboard.
A kind of electricity earthing cable monitor the most according to claim 1, it is characterized in that, described control circuit plate includes controlling loop, controls loop and includes that MCU main control chip circuit, charactron drive display circuit, photoswitch circuit, switching value input circuit and 485 communicating circuits；Described charactron drives the input of display circuit to be connected with the outfan of MCU main control chip circuit, and charactron drives the outfan of display circuit to be connected with digitron display screen；The input of described photoswitch circuit is connected with light-operated switch, and the outfan of photoswitch circuit is connected with the input of MCU main control chip circuit；The input of described switching value input circuit is connected with contact switch, and the outfan of switching value input circuit is connected with the input of MCU main control chip circuit；The input of 485 described communicating circuits is connected with the outfan of MCU main control chip circuit.
A kind of electricity earthing cable monitor the most according to claim 5, is characterized in that, described MCU main control chip circuit specifically includes ATMEGA162-44A chip and the peripheral circuit being made up of crystal oscillator Y1, electric capacity C15 and electric capacity C16；
The PA0 pin of ATMEGA162-44A chip is connected with status lamp, and the PA1 pin of ATMEGA162-44A chip is connected with morse signal light, and the PA2 pin of ATMEGA162-44A chip is connected with ground wire lamp；
The PB2 pin of ATMEGA162-44A chip is connected with the input of GPS receiver localizer；The PE2 pin of ATMEGA162-44A chip is connected with GPRS module.
A kind of electricity earthing cable monitor the most according to claim 5, is characterized in that, described charactron drives display circuit to specifically include: SN74LS573 latch, exclusion and LED chip；D0, D1, D2, D3, D4, D5, D6 and D7 pin of described SN74LS573 latch connects PA0, PA1, PA2, PA3, PA4, PA5, PA6 and PA7 pin of ATMEGA162-44A chip；Q0, Q1, Q2, Q3, Q4, Q5, Q6 and Q7 pin of SN74LS573 latch run in resistance input, exclusion output termination LED chip A, B, C, D, E, F, G and DP pin, the COM pin of described LED chip connects+3.3V voltage.
A kind of electricity earthing cable monitor the most according to claim 5, is characterized in that, described photoswitch circuit includes resistance R1, resistance R2, diode D1, audion Q2 and photosensitive receiving tube Q1；One end of described resistance R1 is connected with one end of resistance R2 and connects+3.3V voltage, the other end of resistance R1 is connected with the positive pole of diode D1 and the colelctor electrode of audion Q2, the base stage of audion Q2 is the signal input part of photoswitch circuit and is connected with light-operated switch, the negative pole of diode D1 is connected with the base stage of audion Q2, the emitter stage of audion Q2 is connected with the emitter stage of photosensitive receiving tube Q1 and ground connection, and the other end of resistance R2 is connected with the colelctor electrode of photosensitive receiving tube Q1 and is the signal output part of photoswitch circuit and is connected with the PD3 pin of ATMEGA162-44A chip.
A kind of electricity earthing cable monitor the most according to claim 5, is characterized in that, described switching value input circuit includes ground wire detection input circuit, A phase detects input circuit, B phase detects input circuit and detects input circuit with C phase；
Described ground wire detection input circuit includes resistance R3, resistance R4, resistance R5, electric capacity C1, electric capacity C2, electric capacity C3 and operational amplifier chip OP1；One end of described electric capacity C1 is connected with one end of one end of resistance R3 and resistance R4 and connects+3.3V voltage, the other end of electric capacity C1 is connected with the CATHODE pin of the other end, one end of electric capacity C2 and the operational amplifier chip OP1 of resistance R4 and detects contact with the ground wire on monitor shell and is connected, and the other end of resistance R3 is connected with the other end of electric capacity C2 and the ANODE pin of operational amplifier chip OP1；The VCC pin of operational amplifier chip OP1 is connected with one end of electric capacity C3 and connects+3.3V voltage, the other end ground connection of electric capacity C3, the VO pin of operational amplifier chip OP1 is connected with the PC0 pin of one end of resistance R5 and ATMEGA162-44A chip, another termination+3.3V voltage of resistance R5；
Described A phase detects input circuit and includes resistance R6, resistance R7, resistance R8, electric capacity C4, electric capacity C5, electric capacity C6 and operational amplifier chip OP2；It is identical with the circuit structure of ground wire detection input circuit that described A phase detects the circuit structure of input circuit, A phase detects the signal input part of input circuit and detects contact with the A phase on monitor shell and be connected, and signal output part is connected with the PC1 pin of ATMEGA162-44A chip；
Described B phase detects input circuit and includes resistance R9, resistance R10, resistance R11, electric capacity C7, electric capacity C8, electric capacity C9 and operational amplifier chip OP3；It is identical with the circuit structure of ground wire detection input circuit that described B phase detects the circuit structure of input circuit, B phase detects the signal input part of input circuit and detects contact with the B phase on monitor shell and be connected, and signal output part is connected with the PC2 pin of ATMEGA162-44A chip；
Described C phase detects input circuit and includes resistance R12, resistance R13, resistance R14, electric capacity C10, electric capacity C11, electric capacity C12 and operational amplifier chip OP4；It is identical with the circuit structure of ground wire detection input circuit that described C phase detects the circuit structure of input circuit, C phase detects the signal input part of input circuit and detects contact with the C phase on monitor shell and be connected, and signal output part is connected with the PC3 pin of ATMEGA162-44A chip.
A kind of electricity earthing cable monitor the most according to claim 5, is characterized in that, 485 described communicating circuits include RW486L chip and critesistor RL；The RO pin of described RW486L chip is connected with the RXD0 pin of ATMEGA162-44A chip, the DI pin of RW486L chip is connected with the TXD0 pin of ATMEGA162-44A chip, and the DE pin of RW486L chip is connected with RE pin and is connected with the PD5 pin of ATMEGA162-44A chip；The VCC pin of described RW486L chip connects+3.3V voltage, the L1 pin of RW486L chip is connected with the 485+ contact on monitor shell, the L2 pin of RW486L chip is connected with one end of critesistor RL, and the other end of critesistor RL is connected with the 485-contact on monitor shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620232913.0U CN205450172U (en) | 2016-03-24 | 2016-03-24 | Electric power grounding wire monitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620232913.0U CN205450172U (en) | 2016-03-24 | 2016-03-24 | Electric power grounding wire monitor |
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| Publication Number | Publication Date |
|---|---|
| CN205450172U true CN205450172U (en) | 2016-08-10 |
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| CN201620232913.0U Expired - Fee Related CN205450172U (en) | 2016-03-24 | 2016-03-24 | Electric power grounding wire monitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652143A (en) * | 2016-03-24 | 2016-06-08 | 国网山东省电力公司济南供电公司 | Power ground wire monitor and a mixed positioning method for ground stud through power ground wire monitor |
| CN113311232A (en) * | 2021-04-16 | 2021-08-27 | 国网山东省电力公司淄博供电公司 | Pin type electronic device attribute value quick tester |
-
2016
- 2016-03-24 CN CN201620232913.0U patent/CN205450172U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652143A (en) * | 2016-03-24 | 2016-06-08 | 国网山东省电力公司济南供电公司 | Power ground wire monitor and a mixed positioning method for ground stud through power ground wire monitor |
| CN105652143B (en) * | 2016-03-24 | 2018-09-21 | 国网山东省电力公司济南供电公司 | A kind of electricity earthing cable monitor and its hybrid locating method to ground stud |
| CN113311232A (en) * | 2021-04-16 | 2021-08-27 | 国网山东省电力公司淄博供电公司 | Pin type electronic device attribute value quick tester |
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