CN207782825U - A kind of control device for power plant modem - Google Patents
A kind of control device for power plant modem Download PDFInfo
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- CN207782825U CN207782825U CN201820199194.6U CN201820199194U CN207782825U CN 207782825 U CN207782825 U CN 207782825U CN 201820199194 U CN201820199194 U CN 201820199194U CN 207782825 U CN207782825 U CN 207782825U
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- 238000001514 detection method Methods 0.000 claims abstract description 44
- 230000007547 defect Effects 0.000 claims abstract description 40
- 238000003379 elimination reaction Methods 0.000 claims abstract description 30
- 230000008030 elimination Effects 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 49
- 238000004891 communication Methods 0.000 claims description 19
- 230000000087 stabilizing effect Effects 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
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Abstract
The utility model discloses a kind of control device for power plant modem, belong to electrical equipment technical field, including control device and for electric installation, control device includes detection module, control module, display module, memory module and the first relay；Detection module is used to detect the signal voltage of modem, and control module is used to whether restart modem according to detection signal determining；Display module restarts defect elimination number for showing, memory module restarts defect elimination information for recording, and the first relay is used to control modem and connects wires the break-make on road.By control module control power plant modem whether power-off restarting, the automatic purpose for restarting defect elimination can be realized in the case where power plant modem breaks down, the power on/off that power plant modem is realized by the first relay, to realize that power plant modem can first power off the purpose for being powered afterwards and realizing and restarting automatically when breaking down.
Description
Technical field
The utility model is related to electrical equipment technical field more particularly to a kind of controls for power plant modem
Equipment.
Background technology
As country fosters the policy of new energy, the access speed in power plant is accelerated, and the quantity in power plant gradually increases,
The scale of dispatching terminal acquisition power plant data constantly increases, and net, provincial electric power company want the quality sent on data acquisition of plant
Ask also higher and higher.2016, " adjust scope tube generate electricity in real time information collection accuracy " was included in county by Zhejiang Electric Power Company
The achievement of Utilities Electric Co. is to marking index, since the operation maintenance personnel level in power plant is irregular, data acquisition of plant equipment
The ratio of defects that quality compared with substation, can not also result in data acquisition of plant is high, significantly increases main website O＆M people
The workload of member.
Statistics and analysis is carried out it is found that modem by acquiring defect situation to the data in power plant over the past two years
Defect accounts for 90% or more of power plant defect sum, accounts for relatively high.The modem that power plant uses is mounted on power plant control
In the telecontrol communication screen of room processed, input termination telecontrol communication machine, the output terminating communications equipment of modem, modem will be remote
The digital signal of motivation is converted into analog signal, and whole station gathered data is uploaded to main station side by communication apparatus, therefore, modulation
Demodulator is the important equipment that data interaction is carried out between power plant automation system and master station automation system.
In addition, according to the defect elimination statistical data of power plant modem it is found that 95% or so modem defect
Defect elimination can be carried out by restarting mode.Currently, existing power plant modem defect elimination process flow is：Dispatching terminal is being sent out
After existing power plant data exception, first tentatively judged, after excluding main station side reason, notice power plant personnel set to field verification
Standby, background information simultaneously restarts modem, then judges whether data are restored.According to the record of dispatching log it is found that according to
The overall average of existing process flow defect elimination modem takes as 94min, wherein power plant maintenance personnel rushes towards the flat of scene
It takes as 84min, accounts for overall average takes 89%.In addition, foundation《Zhejiang power grid county regulation and control integral automation system fortune
Row maintenance management method》The 9.1.2 articles of regulation in (Zhejiang 2015 ﹞ of electricity Gui ﹝ 17), modem delay machine causes doomed dead according to category
In urgent defect.Meanwhile provincial company achievement monthly examines mark index " adjust scope tube generate electricity in real time information collection accuracy ", it is right
The minimum check requirements of power plant data are that must refresh 4 times for 1 hour, i.e., doomed dead to directly affect finger achievement according to 15 minutes or more
To mark.The case where power plant modem takes place frequently there are stage needs main website to increase tour dynamics, and contact power generation repeatedly
Factory maintenance personnel carries out defect elimination, so brings no small index O＆M pressure to power plant maintenance personnel.
Utility model content
In order to solve above-mentioned shortcoming and defect existing in the prior art, the utility model provides one kind in power plant tune
Modulator-demodulator can make the control device for power plant modem that it restarts automatically when breaking down.
In order to achieve the above technical purposes, the control device provided by the utility model for power plant modem,
Including outer box,
It is equipped with control device in the outer box and for electric installation, is used to external power supply being converted into power supply for electric installation
Backward control device is powered；
The control device includes detection module, control module, display module and memory module；
The detection module is used to detect the signal voltage of modem, and the input terminal electricity of detection module is connected to modulatedemodulate
Device, output end electricity is adjusted to be connected to the input terminal of control module；
The control module is used to whether restart modem according to the detection signal determining of detection module；
The display module restarts defect elimination number for modulation demodulator, and display module electricity is connected to control module
Output end；
What the memory module was used to record modem restarts defect elimination information, and memory module electricity is connected to control module
Output end.
Preferably, the control device further includes the first relay that electricity is connected to control module output end, the first relay
It connects wires the break-make on road for controlling modem.
Preferably, the control device further includes the second relay that electricity is connected to control module output end, the second relay
For controlling whether modem starts self-check program.
Preferably, the control device further includes the communication module that electricity is connected to control module output end, and communication module is being adjusted
Modulator-demodulator reports and submits warning when restarting number in fixed time period more than preset times value.
Preferably, described for electric installation includes power supply changeover device, and power supply changeover device is equipped with the first power connection end and the first power supply
End, the first power connection end electricity are connected to external power supply, and control device electricity is connected to the first feeder ear.
Preferably, described for electric installation further includes Voltage stabilizing module, and Voltage stabilizing module is equipped with the second power connection end and the second feeder ear,
Second power connection end electricity is connected to the first feeder ear of power supply changeover device, control module, detection module, display module and memory module electricity
It is connected to the second feeder ear.
Preferably, the output voltage of the power supply changeover device is 12V DC electricity, and the output voltage of Voltage stabilizing module is 5V direct currents
Electricity.
Preferably, the first power connection end electricity is connected to the circuit of external power supply equipped with fuse.
Preferably, the outer box include the bottom case and protecgulum being fixed together, and display module is set on protecgulum, is set on protecgulum
There is display window corresponding with display module, the master control switch for realizing control device start and stop is additionally provided on protecgulum, is set on bottom case
There is line bank.
Preferably, the protecgulum includes cover board and the side plate set on cover board arranged on left and right sides, and bottom case includes bottom plate and is set to bottom
The transverse slat of the upper and lower both sides of plate, protecgulum are fixed together with bottom case by fastener.
After adopting the above technical scheme, the control device provided by the utility model for power plant modem has
Following advantage：
1, the control device provided by the utility model for power plant modem, using detection module to power plant
Modem be measured in real time, by control module control power plant modem whether power-off restarting, Ke Yi
Power plant modem realizes the purpose for restarting defect elimination automatically in the case of breaking down, and greatlys save using existing processing stream
The defect elimination of Cheng Suoxu takes and defect elimination cost, reduces the O＆M pressure of power plant maintenance personnel.In addition, the structure letter of equipment entirety
It is single, it can the whole required manufacturing cost of active control unit.
2, the power on/off that power plant modem is realized by the first relay, to realize power plant modem
The purpose for being powered afterwards and realizing and restarting automatically can be first powered off when breaking down.Power plant modulation /demodulation is realized by the second relay
The startup of device self-check program, actively debugs in the case where modem does not break down.By the first relay and
The high voltage of the low-voltage control modem of second relay, control effect is good, is well positioned to meet this control device
Requirement.
3, control device also sets up the communication module that electricity is connected to control module output end, when modem is in the set time
In section when restarting number more than preset value, communication module reports and submits warning to dispatching terminal, reminds the artificial defect elimination of staff's needs,
The defect elimination action of restarting of excessive number is avoided to influence the normal work of power plant modem, while by restarting modulatedemodulate
It is reminded in the case of adjusting device to can not achieve defect elimination purpose, operation maintenance personnel is made effectively to solve sent out failure.
4, include power supply changeover device and Voltage stabilizing module for electric installation, external power supply is converted by 12V by power supply changeover device
Direct current, for being powered to the first relay and the second relay.By Voltage stabilizing module, further by the direct current of 12V
Electricity is converted into the direct current of 5V, for being powered to control module, detection module, display module and memory module.Rationally set
Set the power requirement for making output voltage better meet each electronic component for electric installation.
It is connected on the circuit of external power supply in power supply changeover device electricity and fuse is set, fusing cut-out circuit when realizing overload
Purpose is protected, it is impaired when each electronic component being avoided to overload, better meet requirement.
5, outer box use split structure, including the bottom case and protecgulum that are fixed together, and bottom case includes bottom plate and is set to bottom
The transverse slat of the upper and lower both sides of plate, protecgulum include cover board and the side plate set on cover board arranged on left and right sides, rationally setting bottom case and protecgulum
Structure forms the outer box of a six face shapes, meets requirement well after so that it is fixed.Display window is set on protecgulum, is shown
Module is on protecgulum and corresponding with display window, and operation maintenance personnel is facilitated to observe.Master control switch is also set up on protecgulum, is easy to implement and is set
Standby whole start-up and shut-down control, better meets requirement.
Description of the drawings
Fig. 1 is overall schematic of the utility model embodiment one for the control device of power plant modem；
Fig. 2 is signal of the utility model embodiment one for front cover portion in the control device of power plant modem
Figure；
Fig. 3 is stereogram of the utility model embodiment one for protecgulum in the control device of power plant modem；
Fig. 4 is signal of the utility model embodiment one for bottom housing section in the control device of power plant modem
Figure；
Fig. 5 is circuit diagram of the utility model embodiment one for the control device of power plant modem；
Fig. 6 is circuit of the utility model embodiment one for detection module in the control device of power plant modem
Figure；
Fig. 7 is circuit of the utility model embodiment one for display module in the control device of power plant modem
Figure；
Fig. 8 is circuit of the utility model embodiment one for control module in the control device of power plant modem
Figure；
Fig. 9 is circuit of the utility model embodiment one for the control device repeat circuit of power plant modem
Figure；
Figure 10 is the utility model embodiment one for the electricity for electric installation in the control device of power plant modem
Lu Tu；
Figure 11 is flow chart of the utility model embodiment one for the control device of power plant modem.
In figure, 100- modems, 200- control devices, 201- detection modules, 202- control modules, 203- display moulds
Block, 204- memory modules, the first relays of 205-, the second relays of 206-, 207- communication modules, 300- is for electric installation, 301-
Power supply changeover device, 302- Voltage stabilizing modules, 303- fuses, 400- outer box, 1- bottom cases, 11- bottom plates, 12- transverse slats, 13- flange, 2-
Protecgulum, 21- cover boards, 22- side plates, 23- display windows, 24- through-holes, 3- master controls switch, 4- line banks, 5- fastener holes, 6- control base
Plate, 7- power supply boards.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.It is to be appreciated that following
The indicating positions such as "upper", "lower", "left", "right", " longitudinal direction ", " transverse direction ", "inner", "outside", "vertical", "horizontal", "top", "bottom"
Or the word of position relationship is based only upon orientation or positional relationship shown in the drawings, only for the purposes of describing the utility model and simplification
Description, does not indicate or imply the indicated device/element and must have a particular orientation or with specific azimuth configuration and behaviour
Make, therefore should not be understood as limiting the present invention.
Embodiment one
As shown in Figure 1, shown in Figure 5, the control device for power plant modem that the utility model embodiment one provides,
Including outer box 400, it is equipped with control device 200 in outer box and for electric installation 300, is used to be converted into supplying by external power supply for electric installation
It is powered to control device after power supply, control device 200 includes detection module 201, control module 202, display module 203
With memory module 204.Detection module 201 is used to detect the signal voltage of modem 100, and control module 202 is used for basis
Whether the detection signal determining of detection module restarts modem.The input terminal electricity of detection module 201 is connected to modem
100, the output end electricity of detection module is connected to the input terminal of control module 202.Display module 203 is used for modulation demodulator
100 restart defect elimination number, and display module electricity is connected to the output end of control module 202.Memory module 204 is for recording modulatedemodulate
That adjusts device 100 restarts defect elimination information, and memory module electricity is connected to the output end of control module 202.
The modem 100 in power plant is measured in real time by detection module 201, is controlled by control module 202
Power plant modem processed whether power-off restarting, can be realized in the case where power plant modem breaks down automatic
The purpose for restarting defect elimination is greatlyd save and is taken and defect elimination cost, reduction power plant dimension using the defect elimination needed for existing process flow
The O＆M pressure of shield personnel.It, can the whole required manufacturing cost of active control unit in addition, the structure of equipment entirety is simple.
Control device 200 further includes the first relay 205 that electricity is connected to 202 output end of control module, and the first relay is used
It connects wires the break-make on road in control modem 100.Control device 200 further includes that electricity is connected to 202 output end of control module
Second relay 206, the second relay is for controlling whether modem 100 starts self-check program.Pass through the first relay
205 and second relay 206 low-voltage control modem 100 high voltage, control effect is good, well meet control
The requirement of equipment.
In the present embodiment, control device 200 further includes the communication module 207 that electricity is connected to 202 output end of control module, communication
Module reports and submits warning when restarting number in fixed time period more than preset times value in modem 100 to dispatching terminal.It carries
The staff that wakes up needs artificial defect elimination, and the defect elimination action of restarting of excessive number is avoided to influence the normal work of power plant modem
Make, while being reminded in the case where can not achieve defect elimination purpose by restarting modem, operation maintenance personnel is made effectively to solve
Certainly sent out failure.
Currently, the normal signal voltage U for the modem 100 that power plant usesSFor AC400mV~500mV, most high frequency
Rate is 2880Hz, and signal voltage when modem breaks down is less than 100mV, due to need to only judge that modem is just
Normal or failure, without measuring the concrete numerical value of modem signal voltage, therefore, the detection module 201 in the present embodiment
Testing requirements can be met using voltage comparator.
Specific in the present embodiment, detection module 201 uses LM311 voltage comparators, circuit diagram as shown in fig. 6, by R1,
R2 forms input signal bleeder circuit, and intrinsic standoff ratio is about 9:10, the positive input terminal U+ of voltage comparator is input to after partial pressure.By
R1, C5 form RC passive low-pass filter circuits, bandwidth about 1kHz, for filtering out high-frequency interferencing signal.Limit is formed by R1, D1, D2
Width circuit, protects detection module not to be burned, and improves circuit reliability, such as accidentally accesses the voltage of 220V in this circuit, inputs
The maximum value of voltage is limited in ± 0.7V.Voltage comparator threshold voltage adjustment circuit is formed by R3, W1 ,+5V accesses voltage warp
The negative input end U- of voltage comparator is input to after bleeder circuit partial pressure, this threshold voltage adjustment value is That is the voltage preset value U of detection module 201PFor 127mV.
When modem 100 works normally, the signal voltage U of modemSMore than 100mV, through bleeder circuit
After partial pressure, when the instantaneous value of U+ is more than U- (127mV), the pin 7 of voltage comparator U2 exports high level.When the instantaneous value of U+
When less than U- (127mV), the pin 7 of voltage comparator U2 exports low level.Therefore, when the signal voltage of modem 100
USWhen more than 100mV, detection module 201 just has output of pulse signal.
When modem 100 breaks down, the signal voltage U of modemSLess than 100mV, through bleeder circuit
After partial pressure, the maximum value of U+ is less than U- (127mV), and the pin of voltage comparator U2 exports low level always, at this point, detection module
201 do not have output of pulse signal.Therefore, output of pulse signal whether can judges modulation /demodulation according to detection module 201
Whether device breaks down.
In the present embodiment, display module 203 is equipped with five segment liquid crystal display screens, and the physical circuit figure of display module is such as
Shown in Fig. 7, U5 is the driving chip of segment liquid crystal display screen, and liquid crystal display, which can at most be shown 99999 times, restarts number, very well
Satisfaction display restart the purpose of defect elimination number.
In the present embodiment, control module 202 uses microcontroller, memory module 204 that storage chip, memory module is used to be used for
Record occurs the data such as notice main station time point, defect expressivity time point, communication module 207 when defect and uses 4G network communication moulds
The wire communication module of block or RS485 type interfaces.The physical circuit figure of microcontroller R8, C8, C9, C11 as shown in figure 8, be made of
Electric source filter circuit can improve stability with the noise of filtering circuit.J6 is the driving interface of display module 203, and U4 is storage
Chip.
The circuit of first relay and the second relay by R11 and V2, R10 and V1 as shown in figure 9, form triode switch
Circuit, when control module 202 export high level when, triode saturation conduction, relay energized action, wherein K1 be first after
Electric appliance, K2 are the second relay.
Include power supply changeover device 301 and Voltage stabilizing module 302 for electric installation 300, power supply changeover device 301 is equipped with the first power connection end
With the first feeder ear, Voltage stabilizing module 302 is equipped with the second power connection end and the second feeder ear.First power connection end of power supply changeover device 301
Electricity is connected to external power supply, and the second power connection end electricity of the first relay 205, the second relay 206 and Voltage stabilizing module 302 is connected to first
Feeder ear, control module 202, detection module 201, display module 203 and 204 electricity of memory module are connected to the of Voltage stabilizing module 302
Two feeder ears.
In the present embodiment, the output voltage of power supply changeover device 301 is 12V DC electricity, and the output voltage of Voltage stabilizing module 302 is
5V direct currents.In order to improve safety, the circuit that the first power connection end electricity is connected to external power supply is equipped with fuse 303.
Power supply changeover device 301 uses AC/DC converters, Voltage stabilizing module 302 to use three terminal regulator.For electric installation 300
Circuit diagram is as shown in Figure 10, and AC220V power supplys become DC12V power supplys after power supply changeover device 301, then become through Voltage stabilizing module 302
DC5V power supplys, 12V power supplys are the first relay 205, the power supply of the second relay 206, and 5V power supplys are that other electronic components are powered, electricity
C1, C2, C3, C4 in road are power filtering capacitor.
As shown in Figure 2, Figure 3, Figure 4, outer box 400 include the bottom case 1 being fixed together and protecgulum 2, and display module 203 is fixed
On the inner wall of protecgulum 2, protecgulum is equipped with display window 23 corresponding with display module, is additionally provided on protecgulum and is set for realizing control
The master control switch 3 of standby start and stop, bottom case 1 are equipped with line bank 4.
Protecgulum 2 includes cover board 21 and the side plate 22 set on cover board arranged on left and right sides, and display window 23 is set on cover board, and master control is opened
It closes 3 to be set on cover board, and master control switch is connected to set on the first power connection end electricity of power supply changeover device on the circuit of external power supply, cover board
21 are equipped with the through-hole 24 for installing master control switch.
Bottom case 1 includes that bottom plate 11 and the transverse slat 12 set on the upper and lower both sides of bottom plate, line bank 4 are fixed on the cross being located above
Wiring is used on plate.Protecgulum 2 is fixed together with bottom case 1 by fastener, in the present embodiment, passes through spiral shell between protecgulum and bottom case
Nail, which is realized, to be fixed, and the edge of transverse slat 12 is equipped with the flange 13 of infolding, and it is mutually right to be equipped on the edge of protecgulum 2 and flange 13
The fastener hole 5 answered realizes the fixation between back box and protecgulum by the cooperation of screw and fastener hole.
In the present embodiment, the inner wall of bottom case 1 is equipped with control base board 6 and power supply board 7, detection module 201, control module
202, memory module 204 and communication module 207 are set in control base board 6, power supply changeover device 301, Voltage stabilizing module 302 and fuse
303 are set on power supply board 7.
As shown in figure 11, the control method of the present embodiment control device includes the following steps：
S1, detection module 201 detect the signal voltage U of modem 100S, as signal voltage USMore than detection module
Voltage preset value UPWhen, detection module continues output pulse signal, 202 return pulse signal of control module and does not make and executes letter
Number；
If the signal voltage U in S2, step S1SLess than the voltage preset value U of detection module 201P, the stopping of detection module 201
Output pulse signal, when control module 201 does not receive pulse signal in preset time period Δ t, control module 202 is made disconnected
Electricity executes signal and is sent to the first relay 205；
After power-off in S3,205 receiving step S2 of the first relay executes signal, the normally-closed contact of the first relay is disconnected
It opens, the road disconnection of connecting wires of modem 100, modem is out of service；
S4, reach delay time preset value T as the power-off time Δ T of modem 100 in step S3PWhen, control mould
Block 202 makes energization and executes signal and be sent to the first relay 205；
After energization in S5,205 receiving step S4 of the first relay executes signal, the normally-closed contact of the first relay closes
It closes, the circuit energization of connecting wires of modem realizes that modem is restarted；Meanwhile control module sends restarting information
It is recorded to memory module, this time is restarted number and be sent to display module by control module to be shown.
If S6, modem 100 are in fixed time period TFRestarted for interior the m times, control module locking, is stopped to the
One relay sends power-off and executes signal.
For optimal control method, the voltage preset value U of detection module 201PIt is for 127mV, preset time period Δ t
2min, delay time preset value TPFor 5s, fixed time period TFFor 15min, m 6.
In order to notify main station side in time, in step S6, control module 202 makes caution signal simultaneously and is sent to communication mould
Block 207, communication module are reported and submitted after receiving caution signal to main station side.It reminds staff to need artificial defect elimination, avoided repeatedly
It is several to restart defect elimination action and influence the normal work of power plant modem, while cannot be real by restarting modem
It is reminded in the case of existing defect elimination purpose, operation maintenance personnel is made effectively to solve sent out failure.
Second relay 206 is used to start the self-check program of modem, when in step S3 the first relay it is normally closed
When contact does not disconnect, control module makes energization and executes signal and be sent to the second relay, the normally opened contact of the second relay
It is closed after receiving energization and executing signal, modem enters self-check program；After modem self-check program, detection
Module detects the signal voltage U of modemSIf signal voltage USMore than the voltage preset value U of detection moduleP, detection module
Continue output pulse signal, make reset signal after control module return pulse signal and be sent to the second relay, second after
The normally opened contact of the second relay restores to normally open after electric appliance reception reset signal.
In order to improve the reliability of control device overall operation, 202 built-in self program of control module, when equipment is integrally transported
Row certain time or after restarting and reaching certain number, control module starts self-check program, actively excludes the defect of control device.
In addition to above preferred embodiment, the utility model also has other embodiments, and those skilled in the art can root
It is made various changes and modifications according to the utility model, without departing from the spirit of the utility model, the utility model should all be belonged to
Range as defined in the claims.
Claims (10)
1. a kind of control device for power plant modem, including outer box, which is characterized in that
It is equipped with control device in the outer box and for electric installation, is used to external power supply being converted into power supply for electric installation backward
Control device is powered；
The control device includes detection module, control module, display module and memory module；
The detection module is used to detect the signal voltage of modem, and the input terminal electricity of detection module is connected to modulation /demodulation
Device, output end electricity are connected to the input terminal of control module；
The control module is used to whether restart modem according to the detection signal determining of detection module；
The display module restarts defect elimination number for modulation demodulator, and display module electricity is connected to the output of control module
End；
What the memory module was used to record modem restarts defect elimination information, and memory module electricity is connected to the output of control module
End.
2. the control device according to claim 1 for power plant modem, which is characterized in that the control dress
It further includes that electricity is connected to the first relay of control module output end to set, and the first relay is connected wires road for controlling modem
Break-make.
3. the control device according to claim 1 for power plant modem, which is characterized in that the control dress
It further includes electric the second relay for being connected to control module output end to set, and the second relay is for controlling whether modem starts
Self-check program.
4. the control device according to claim 1 for power plant modem, which is characterized in that the control dress
It further includes that electricity is connected to the communication module of control module output end to set, and communication module is in modem in restarting in fixed time period
Number reports and submits warning when being more than preset times value.
5. the control device according to claim 1 for power plant modem, which is characterized in that described for Denso
It sets including power supply changeover device, power supply changeover device is equipped with the first power connection end and the first feeder ear, and the first power connection end electricity is connected to external electricity
Source, control device electricity are connected to the first feeder ear.
6. the control device according to claim 5 for power plant modem, which is characterized in that described for Denso
It further includes Voltage stabilizing module to set, and Voltage stabilizing module is equipped with the second power connection end and the second feeder ear, and the second power connection end electricity is connected to power supply conversion
First feeder ear of device, control module, detection module, display module and memory module electricity are connected to the second feeder ear.
7. the control device according to claim 6 for power plant modem, which is characterized in that the power supply turns
The output voltage of parallel operation is 12V DC electricity, and the output voltage of Voltage stabilizing module is 5V direct currents.
8. the control device according to claim 5 for power plant modem, which is characterized in that described first connects
The circuit that electric end electricity is connected to external power supply is equipped with fuse.
9. being used for the control device of power plant modem according to claim 1-8 any one of them, which is characterized in that institute
It includes the bottom case and protecgulum being fixed together to state outer box, and display module is set on protecgulum, and protecgulum is equipped with corresponding with display module
Display window, the master control switch for realizing control device start and stop is additionally provided on protecgulum, bottom case is equipped with line bank.
10. the control device according to claim 9 for power plant modem, which is characterized in that the protecgulum
Side plate including cover board and set on cover board arranged on left and right sides, bottom case include bottom plate and the transverse slat set on the upper and lower both sides of bottom plate, protecgulum
It is fixed together by fastener with bottom case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820199194.6U CN207782825U (en) | 2018-02-05 | 2018-02-05 | A kind of control device for power plant modem |
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| CN108289042A (en) * | 2018-02-05 | 2018-07-17 | 国网浙江杭州市余杭区供电有限公司 | A kind of control system and control method for power plant modem |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108289042A (en) * | 2018-02-05 | 2018-07-17 | 国网浙江杭州市余杭区供电有限公司 | A kind of control system and control method for power plant modem |
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