CN107491013A - A kind of wireless remote timing control switch - Google Patents
A kind of wireless remote timing control switch Download PDFInfo
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- CN107491013A CN107491013A CN201710867233.5A CN201710867233A CN107491013A CN 107491013 A CN107491013 A CN 107491013A CN 201710867233 A CN201710867233 A CN 201710867233A CN 107491013 A CN107491013 A CN 107491013A
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
Abstract
The present invention relates to the present invention to provide a kind of wireless remote timing control switch, the controlling switch includes power supply module, communication module, display module, RTC clock module and detection module, power supply module is connected with communication module, display module, RTC clock module and detection module successively, for powering, detection module is connected with communication module, detection data are transferred to communication module, the data after processing are sent to display module and shown by communication module.The wireless remote timing control switch can realize 4 exchanges for the Wireless remote control with electric contactor, realize the wireless remote timing controlled in exchange power supply and distribution facility loop, highly reliable dual-host backup control is realized again, the equipment volume is compact simultaneously, cost is low, is easily installed in exchange power supply and distribution facility.
Description
Technical field
The present invention relates to Internet of Things, road lighting, industrial control field, more particularly to a kind of wireless remote timing controlled to open
Close.
Background technology
In road lighting and industrial control field, substantial amounts of exchange power supply and distribution facility be present, these exchange power supply and distribution facilities
By the alternating current of input be powered loop distribution, be powered to each loop load, each loop manually or
Person's timer mode carries out circuit switching control power supply, and this kind of control mode needs manually to control or artificial periodically adjustment
Time control, it is impossible to realize flexible remote automatic control.
Although having part producer at present in order to realize Automated condtrol, using PLC return for distribution
The automatic switch control on road, but PLC circuit controls driving force is smaller, it is necessary to external auxiliary reclay
Can realize high-power loop power supply contactor control driving, and programmable controller only provide Ethernet interface and
RS232, RS485 communication interface can be compiled, it is necessary to external wireless telecommunications GPRS communication module could realize remote auto control in addition
Range controller needs extra externally fed power module to supply power for, therefore is realized using programmable controller and supply distribution loop
The needs periphery automatically controlled provides various auxiliary equipments and device, and Control System Design is complicated, wiring engineering amount is big, system is steady
It is qualitative it is not high, trouble point is more, can not realize remote control, can not realize more equipment room coordinated signals.
Current Ye You small parts producer targetedly devises integrated automatic control equipment, and exchange can be realized for matching somebody with somebody
The remote switch control of electric equipment, and it is defeated to be also integrated with loop current detection function, switching value, switching value in a device
Go out, the various functions such as remote meter reading, backup battery power supply, but these equipment are in order to pursue the large and complete of function, equipment volume
Greatly, manufacturing cost is high, controls the feeder number of management to be fixed as 6 or 12, but in actual use, most friendship
Power supply and distribution facility is flowed in order to cost-effective, and its cabinet design is all compact compact, without enough this one of space mounting
Change control device, and also do not used for other functions of these overall-in-one control schema equipment；Also the exchange of enormous amount is for matching somebody with somebody
Electric facility only has 2-4 to supply distribution loop, is wasted using the control device of integration serious.
These defects mentioned above have become the technical problem for being badly in need of solving.
The content of the invention
The present invention devises a kind of wireless remote timing control switch, wireless remote timing for exchange power supply and distribution facility
Controlling switch can realize that 4 exchanges supply the Wireless remote control with electric contactor, can realize the closed form of A.C. contactor
State detection, the alarm of three phase mains supply input unit power phase shortage, power fail warning can be detected；Controlled with wireless telecommunication
Interface realizes remote wireless control and timing controlled, also has two-shipper control detection and dual-host backup control function, that is, realizes
The wireless remote timing controlled in power supply and distribution facility loop is exchanged, realizes highly reliable dual-host backup control, while the equipment again
Compact, cost are low, are easily installed in exchange power supply and distribution facility.
Present invention employs following technical scheme：
A kind of wireless remote timing control switch, the controlling switch include power supply module, communication module, display module, RTC clock
Module and detection module, it is characterised in that：
Power supply module is connected with communication module, display module, RTC clock module and detection module successively, for powering, detects mould
Block is connected with communication module, detection data is transferred into communication module, the data after processing are sent to display mould by communication module
Block is shown；
The power supply module includes three phase mains supply input unit, AC/DC 12V power subsystems, DC6-28V direct current supplys input
Unit, DC12V merge power supply unit, DC7.0 ~ 8.4V battery assembly modules, battery powered short-circuited terminal unit, battery charging and discharging list
Member, DC/DC 5.5V power subsystems, DC/DC 3.3V power subsystems;
The communication module includes ARM CPU wireless telecommunications core cell, GPRS/4G radio communication units, SMA antennal interface lists
Member, RS232 communication interfaces, RS485 communication interfaces；
The display module includes HMI display units, HMI display screen power switch unit, TTL RS 232 units；
The detection module includes relay drive unit, dual-host backup detection analog switch unit, phase shortage detection of power loss and simulates and open
Close unit, switching value analog switch unit, dual-host backup detection unit, phase shortage detection of power loss unit, switching value list
Member.
The three phase mains supply input unit is using during the binding post guarantee equipment application of 7.62mm spacing three
Mutually enough electrical isolations of electricity, by triple line A, B, C, N for exchanging in power supply and distribution facility, totally 4 lines access this wireless remote and determined
When controlling switch, for three-phase voltage pile defection and equipment power.
The DC6-28V direct current supplys input block selects the DC power supplier with higher lightning protection Anti-surging grade.
The DC12V merges merging power supply of the power supply unit using 4 DC12V DC supply inputs, intersecting in A, B, C tri-
Stream and DC6-28V direct currents are in totally 4 externally feds, as long as there is an externally fed input normally to ensure that wireless remote is determined
When controlling switch normal work.
It is described equipment for a long time do not work when, disconnect the battery powered short-circuited terminal unit, avoid battery last from putting
Electricity, when equipment works, using wire by battery powered short-circuited terminal unit short circuit, complete power supply of the battery pack to equipment.
Described when external power source is powered, the battery charging and discharging unit is charged to battery pack, in externally fed electricity
During the failure of source, the DC/DC 5.5V power subsystems, the ARM CPU channel radios that are discharged by the battery charging and discharging unit to equipment
Interrogate core cell, GPRS/4G radio communication units, HMI display screen power switch units.
The SMA antenna interface units include high-speed radio SMA interfaces, low-speed wireless SMA interfaces, GPRS/4G
SMA interfaces.
Power supply between the unit is divided into two classes, and the first kind merges power supply unit by DC12V, and by DC/
DC3.3V power subsystems provide a DC3.3V dc source, the DC12V merge power supply unit to relay drive unit, open
Pass amount detection power supply, DC3.3V power supplys are powered to dual-host backup detection, phase shortage detection of power loss, RS485 communication interfaces；Second class is led to
Cross DC12V and merge power supply, by battery charging and discharging unit, power supply power supply, the DC5.5V are provided to DC/DC 5.5V power modules
Power supply is to ARM CPU wireless telecommunications core cell, GPRS/4G radio communication units, the power supply of HMI display units；In external communication
When DC power supply is normal, all modules of equipment all in working condition, once device external power supply failure, it is necessary to
When providing power supply by the battery pack of device interior, first kind power pack will be in state of stopping power supply, and be supplied in only second
Electric part is powered using battery pack, electric quantity consumption when so reducing battery-powered to greatest extent, extension device without
The time that the connection of line communication channel is kept.
One dual-host backup detection function of the control design case for each contactor, is detected by the dual-host backup
Function realizes that two or more timing control switch device backups control, when main equipment is working properly, by main equipment just
The switch control of contactor can be realized, in master-failure, the switch control of contactor can be realized by stand-by equipment.
The control relay for each contactor has 4 alternating current signal detection points, can by this 4 test points
Detect contactor state of a control, 4 control relays control the switch of 4 contactors, a total of 4 × 4 totally 16 test points, lead to
The dual-host backup detection unit and 16 for crossing isolation select 1 module switch that the signal of 16 test points is input into ARM CPU in turn
The IRQ interrupt pins of processor, judge whether to have on the IRQ pins impulse waveform of conversion to carry out dual-host backup signal to circulate
Detection, and calculate whether start standby control.
The phase shortage detection of power loss, by detect electric circuit inspection input three phase mains supply input unit wires on whether have
Periodic sine wave signal, so as to judge A, B, C three phase mains whether phase shortage power down.
The detection method for phase shortage power down is to select 1 simulation to open by the phase shortage detection of power loss unit of isolation and 4
The IRQ interrupt pins that one detection signal of selection is input to ARM CPU processors are closed, judge whether there is conversion on the IRQ pins
Impulse waveform come circulate carry out phase shortage power-off signal detection.
The beneficial effects of the invention are as follows：
1）Alternating current is detected by light-coupled isolation to input, due to the sine wave that China's alternating current is 50Hz, AC sine wave signal
Be connected to optocoupler input so that optocoupler output have one be shaped after impulse waveform, pass through ARM CPU processors
IRQ interrupt pins mean that in the input signal have alternating current defeated per 100ms after the detection counting impulse waveform reaches 5 pulses
Enter；
2）Alternating current is detected by optocoupler to input, and on the one hand can carry out shaping to the sinusoidal signal of alternating current, another effect
Forceful electric power isolation can be played a part of, be the detection for being capable of the input of time alternating current using simple circuit；
3）1,16 are selected to select 1 module switch to carry out cyclic switching selection by 4, the several ARM CPU IO that with only minority draw
Pin realizes large number of alternating current input signal detection；
4）By two class electric power systems, in outside power supply trouble only by battery pack to ARM CPU wireless telecommunications core cell,
GPRS/4G radio communication units, the power supply of HMI display screens, ensure that battery-powered low-power consumption.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the structural representation of the wireless remote timing control switch of the present invention；
Fig. 2 is the circuit diagram of the power supply module of the present invention；
Fig. 3 is the circuit diagram of the communication module of the present invention；
Fig. 4 is the circuit diagram of the display module of the present invention；
Fig. 5 is the circuit diagram of the detection module of the present invention；
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
The present invention is described in further detail with reference to embodiment：
The structural representation of the wireless remote timing control switch of the present invention is as shown in Figure 1.The controlling switch include power supply module,
Communication module, display module, RTC clock module and detection module.Wherein, the power supply module includes three phase mains supply input list
Member, AC/DC 12V power subsystems, DC6-28V direct current supplys input block, DC12V merge power supply unit, DC7.0 ~ 8.4V batteries
Group unit, battery powered short-circuited terminal unit, battery charging and discharging unit, DC/DC 5.5V power subsystems, DC/DC 3.3V power supplys
Unit.The communication module includes ARM CPU wireless telecommunications core cell, GPRS/4G radio communication units, SMA antennal interface lists
Member, RS232 communication interfaces, RS485 communication interfaces.The SMA antenna interface units include high-speed radio SMA interfaces, low speed
Wireless SMA interfaces, GPRS/4G SMA interfaces.The display module include HMI display units, HMI display screen power switch unit,
TTL RS 232 units.The detection module includes relay drive unit, dual-host backup detection analog switch unit, phase shortage power down
Detection analog switch unit, switching value analog switch unit, dual-host backup detection unit, phase shortage detection of power loss unit, open
Close amount detection unit.
The three phase mains supply input unit of the controlling switch ensures equipment application using the binding post of 7.62mm spacing
During three-phase electricity enough electrical isolations, by exchange power supply and distribution facility in triple line A, B, C, N totally 4 lines access this nothing
Line remote timing controlling switch, pile defection and equipment for three-phase voltage are powered；The controlling switch can also access single-phase
AC220V power supply powered operations, lightning protection and the Anti-surging all per mutually input with 6KV of three phase mains supply input unit
Protection circuit（It is not shown）, to ensure that equipment is being struck by lightning and the reliability Work under surge condition.
Three-phase alternating current is converted to 3 road DC12V dc sources by the controlling switch using 3 AC/DC 12V power subsystems,
To ensure when three phase mains supply input unit has phase shortage, equipment remain unchanged can provide DC12V dc source to
The module for power supply of other parts.
The controlling switch provides a DC6-28V direct current supply input block, the nominal input electricity of direct current supply input
Press as DC12V, can be by the outside direct current for providing a DC12V when multiple wireless remote timing control switch cooperate
Power supply gives all wireless remote timing control switch centrally connected power supplies, and the dc source, which can be selected, has higher lightning protection Anti-surging
The DC power supplier of grade.
The controlling switch merges the real-time Hot Spare of power supply unit by DC12V, and it is defeated to realize 4 DC12V dc sources
The merging power supply entered, in A, B, C three-phase alternating current and DC6-28V direct currents totally 4 externally feds, as long as there is an externally fed defeated
Enter the normal normal work for ensuring that wireless remote timing control switch, after some externally fed input fault, outside other
Portion's supply input, which remains unchanged, can ensure powering and reliable and stable work for wireless remote timing control switch other parts.
The controlling switch can also pass through a DC7.0-8.4V battery pack in addition to the AC DC power supply of outside multichannel
Unit provides backup to equipment, after detecting externally fed failure, can be carried out by wireless communication networks long-range
The transmission of power supply warning information.
The controlling switch devises in order to facilitate the reliability and stability of equipment battery pack in storage, transportation
One battery powered short-circuited terminal unit, equipment for a long time do not work, store in a warehouse, transport when, disconnection battery powered short-circuited terminal
Unit, avoid cell during discharge.It is using wire that battery powered short-circuited terminal unit short circuit, completion is electric when equipment works
Power supply of the pond group to equipment, guarantee that can be more reliable and more stable compared to switch using short-circuited terminal is battery-powered, avoids
The malfunction of personnel causes the generation of battery-powered failure.
The battery charging and discharging unit of the controlling switch is used for when external power source is powered, and is given by the battery charging and discharging unit
Battery pack is charged, in outside power supply failure, the DC/DC that is discharged by the battery charging and discharging unit to equipment
5.5V power subsystems, ARM CPU wireless telecommunications core cell, GPRS/4G radio communication units, HMI display screen power switch lists
Member.
Power supply between the controlling switch unit is divided into two classes, and the first kind merges power supply unit by DC12V, and
DC3.3V dc source is provided by DC/DC3.3V power subsystems, the DC12V merges power supply unit and gives relay driving list
Member, switching value power supply, DC3.3V power supplys are powered to dual-host backup detection, phase shortage detection of power loss, RS485 communication interfaces；The
Two classes are merged by DC12V is powered, and by battery charging and discharging unit, power supply power supply is provided to DC/DC 5.5V power modules, should
DC5.5V power supplys are to ARM CPU wireless telecommunications core cell, GPRS/4G radio communication units, the power supply of HMI display units；This hair
When bright device external AC DC power supply is normal, all modules of equipment are all in working condition, once device external is handed over
DC power supply failure is flowed, it is necessary to when providing power supply by the battery pack of device interior, and first kind power pack will be in
Stop power supply state, power pack is powered using battery pack in only second, is so reduced to greatest extent battery-powered
When electric quantity consumption, extension device wireless communication channel connection keep time.
The ARM CPU wireless telecommunications core cells of the present invention are the core components of whole equipment, and the core component has micro-
Power wireless communication interface, there is ARM CPU calculation processing powers, it is various wireless transmission can be received by wireless communication interface
Communication instruction, and the calculation process of instruction is communicated wirelessly by ARM CPU processors, realize exchange power supply and distribution facility loop
Time switch and command switch control, and carry out the various functions such as dual-host backup control, the alarm of phase shortage detection of power loss.The present invention can
To utilize the wireless communication interface in ARM CPU wireless telecommunications core cells and wireless instructions and other wireless remote timing controlleds
Switchgear communicates wirelessly collaborative work, realizes that synchro switch, sequence switch of multiple timing control switch equipment etc. are multiple
Miscellaneous control logic, and can also be communicated with wireless loop current acquisition equipment, realize detection and the door of loop current
Limit judges.
The GPRS/4G radio communication units of the present invention are used for the wireless communication networks by operator, are taken with remote management
Business business realizes the communication of data and instruction, by the timing control switch policy download of management server configuration into equipment, and will
The various failures for the exchange power supply and distribution facility being locally detected, power down failure, open-phase fault, contactor failure, the out-of-limit announcement of electric current
The information such as alert is sent in management server, notifies the exchange of equipment maintenance and management personnel timely processing to be set for distribution by management server
The failure applied, ensure for the safe and reliable of distribution.
The present invention devises 3 SMA antenna pedestals, corresponded to respectively to adapt to a variety of different wireless communication platforms
High speed wireless communication SMA antenna pedestals, low-speed wireless communication SMA antenna pedestals, GPRS/4G wireless telecommunications SMA antenna pedestals, by this 3
Individual SMA antenna pedestals, wireless remote timing control switch of the invention can be realized super remote by the wireless communication networks of operator
The wireless telecommunications management of distance, the high level matches with low level that and can is enough communicated using high speed wireless communication and low-speed wireless, realize 0 meter ~
The wireless networking communication of 4500 meters of distance ranges, the wireless networking communication of modules inside exchange power supply and distribution facility is realized, together
When can also realize multiple distances in 4500 meters exchange power supply and distribution facility wireless networking, may finally realize and utilize one
GPRS/4G wireless communication modules are realized the remote switch control of numerous exchange power supply and distribution facilities and its internal module, remotely matched somebody with somebody
Put and manage.
The RS232 communication interfaces of the present invention are used for equipment convenient construction personnel debugging and test equipment in installation process
Operation stability, what guarantee system was implemented is smoothed out.
The present invention devises a HMI display unit, and HMI display units and ARM are realized by TTL RS 232 chips
The communication of CPU wireless telecommunications core cells, the man-machine interaction configuration of present device is completed, passes through the boundary of the HMI display units
The button and input frame in face can realize configuration local nearby and management timing control switch equipment, when modification equipment is run
Between, set the time switch period, triggering contactor act power supply to load circuit, inquiry exchange the various of power supply and distribution facility set
The various management functions such as standby state.
The present invention accomplishes equipment oneself power consumption minimum to ensure equipment in the case of battery-powered, devises
One HMI display screen power switch unit, HMI is controlled to show by the PWR_D2 pins of ARM CPU wireless telecommunications core cells
Shield power switch unit to power to HMI display units, in the case where there is no personnel's operating display more than 5 minutes, pass through
PWR_D2 pins close the power supply of HMI display units, ensure the low power operation of equipment.
The present invention realizes the driving of No. 4 relays by I/O interface, it is achieved thereby that the switch control of No. 4 contactors,
Realize the remote switch control in exchange power supplying and distributing equipment loop.
The present invention is double for the control design case one of each contactor in order to ensure the reliability of contactless contactor control
Machine backup detection function, two or more timing control switch device backups can be realized by the dual-host backup detection function
Control, when main equipment is working properly, the switch for realizing contactor by main equipment can controls, in master-failure,
The switch control of contactor can be realized by stand-by equipment.
The dual-host backup detection function of the present invention, has 4 alternating current signal detection points to the control relay of each contactor,
Contactor state of a control can be detected by this 4 test points, and of the invention 4 control relays control opening for 4 contactors
Close, a total of 4 × 4 totally 16 test points, 1 module switch is selected by 16 inspections by the dual-host backup detection unit of isolation and 16
Whether the IRQ interrupt pins that the signal of measuring point is input to ARM CPU processors in turn carry out dual-host backup detection, and calculate and start
Standby control.
The phase shortage detection of power loss of the present invention is similar with dual-host backup detection function, the three-phase inputted by detecting electric circuit inspection
Whether there is periodic sine wave signal in power supply supply input unit wires, so as to judge A, B, C three phase mains whether fall by phase shortage
Electricity.
The detection method for phase shortage power down of the present invention is similar with dual-host backup detection, is still fallen by the phase shortage of isolation
Electro-detection unit and 4 select 1 analog switch to select a detection signal to be input to the IRQ interrupt pins of ARM CPU processors to follow
Ring carries out phase shortage power-off signal detection.
The IRQ interrupt pins cycle detection dual-host backup detection signal and phase shortage detection of power loss that the present invention passes through ARM CPU
Signal, judge whether there is the impulse waveform of conversion on the IRQ pins, you can judge that detection signal is normal.
The present invention has switching value, the key press detecting circuit on 4 tunnels on 4 tunnels, selects 1 analog switch to circulate by 8
Select 1 way switch amount, button to enter in ARM CPU processors to be detected；The switching value of the present invention can detect 4 tunnels of outside
The switch closed condition of contactor, connection exchange the auxiliary contact of the contactor of power supplying and distributing equipment, detect the action shape of contactor
State；Button can realize the operations such as device reset operation, the wake-up of HMI display units.
The present invention have also been devised a RS485 communication interface, and the communication module can be connected outer by RS485 communication buses
The various industrial control equipments in portion, the communication with these equipment is realized, especially by RS485 buses and with RS485 communications
The ammeter of interface is communicated, and realizes the remote meter-reading function of the power consumption of exchange power supply and distribution facility, the invention not only can be with complete
Into the wireless remote timing control switch of the current supply circuit of exchange power supply facilities, additionally it is possible to complete the metering of power consumption and remotely copy
Table.
The present invention also includes a RTC clock module, and the module can ensure that equipment is run according to accurate real-time clock
And the loop of the timing section switch control power supply facilities according to configuration.
Fig. 2 is that the circuit diagram of the power supply module of the present invention is as shown in Figure 2.The power supply module is powered including three phase mains
Input block, AC/DC 12V power subsystems, DC6-28V direct current supplys input block, DC12V merging power supply unit, DC7.0 ~
8.4V battery assembly modules, battery powered short-circuited terminal unit, battery charging and discharging unit, DC/DC 5.5V power subsystems, DC/DC
3.3V power subsystem.
Wherein, three phase mains supply input unit is that A/B/C three-phases add zero line, three-phase four-wire power supply.AC/DC
12V power subsystems include three insulating power supply units, do input power taking from A-N, B-N, C-N respectively, then connect fuse resistance and
Piezo-resistance does lightning protection, and principle is when there is lightning induced surge to enter input, first passes through resistance fuse and does one-level
Absorb, then drastically decline and turn on rapidly by piezo-resistance TVR10471, under high pressure piezo-resistance internal resistance, thunderbolt of releasing
Transient energy, Circuit theory lightning protection grade are：Line To Line 2KV, 2KV, insulating power supply module use transformer isolation to line over the ground
Flyback schemes, 12V voltages are exported, one diode of positive pole string of each power supply output, such purpose is to prevent power supply
Between interfere with each other, and output inconsistent causes to damage.
DC terminals are selected in DC6-28V direct current supply input blocks, unit direct current input, and supply district is that maximum can be with resistance to
Press 28V, can select DC12V, DC24V adapter power, if to use it is battery-powered, because charge-discharge modules chip is resistance to
Press as 18V, it is necessary to select DC12V adapters to power.
DC12V merging power supply units, the cells D C terminal input string diode, then with AC-DC power output ends simultaneously
Common offer DC voltage, Alternating Current Power Supply and direct current supply alternative are provided, facilitate product compatibility indoor and outdoor occasion.
DC7.0 ~ 8.4V battery assembly modules, the two section lithium battery concatenation power supplies that the battery assembly module uses, voltage range are
7V-8.4V, internal battery pack have protection circuit, prevent battery is crossed to let off from filling, according to the requirement of client, battery is run after a power failure
Time, the capacity of battery can also select different parameter.
Battery powered short-circuited terminal unit, the short-circuited terminal of the unit are placed on the positive pole of battery, it is necessary to use battery pack confession
Can be connected when electric with wire, it is not necessary to when such as during transport, with break line battery can be avoided to grow
Phase overdischarge.
Battery charging and discharging unit, the unit use the charging module using TP5100 as master chip, built-in Schottky diode
It is anti-reverse, chip belt excess temperature, excessively stream, overvoltage protection.The external power switching circuit in rear end, 1. when A_DC12V power supplies are normal, electricity
While ensureing to charge normal, for just, now Q201 is turned off, B_OUT voltages subtract PMOS Q201 VGS for A_DC12V in pond
D201 pressure drop, VDD_OUT=12-Vd；2. when A_DC12V, which powers, to be disconnected, VGS is negative driving PMOS conductings, and B_OUT is electricity
Pond powers, and by detecting cell voltage VBAT, constantly detects voltage to judge battery whether in the state of still electric discharge that charges.Point
Pressure detection A_DC12V, to judge whether power supply is normal.
DC/DC 5.5V power subsystems, after the DC voltage of the unit is by C202, doing low frequency filtering reduces voltage ripple
Interference, C203,204 electric capacity make High frequency filter, export stable DC voltage, and voltage passes through BUCK chip MP1584 inputs, lead to
Chip FB pins detection output voltage is crossed, automatically adjusts internal dutycycle, makes the stable 5.5V DC voltages of its output,
DC/DC 3.3V power subsystems, after the DC voltage of the unit is by C101, doing low frequency filtering reduces voltage ripple interference,
C102, C103 electric capacity make High frequency filter, export stable DC voltage, and voltage passes through BUCK chip MP1584 inputs, passes through core
Piece FB pins detect output voltage, automatically adjust internal dutycycle, make the stable 3.3V DC voltages of its output.
The circuit diagram of the communication module of the present invention is as shown in Figure 3.The communication module includes ARM CPU wireless telecommunications cores
Heart unit, GPRS/4G radio communication units, SMA antenna interface units, RS232 communication interfaces, RS485 communication interfaces.
It is made up of inside ARM CPU wireless telecommunications core cells following chip and module：
1）CPU processor be ST model STM32F103RCT6, memory span 256KB, SRAM 48KB, maximal rate
72M can be reached；
2）Spread F LASH memories are M25P32, inside save as 32M, are connected by spi bus with CPU SPI interfaces；
3）CPU Transistor-Transistor Logic level is converted into 232 level by inside modules by SP232 chips, is provided out the interface of 2 tunnel 232.Module
Inside carry high-speed radio and low-speed wireless Dual module, can independently select, can also Dual module work simultaneously, compatibility by force, biography
Defeated distance is remote.
GPRS/4G radio communication units, using GPRS232-MODE modules；LinkA, LinkB pin connection of module refer to
Show lamp to reflect whether first network connection and the second network connection are normal, and connection then exports high level, triode conduit, LED
Lamp is lit；Serial communication pin UTXD1, URXD1 and core board UART2 connection communications；Module pin WORK is working properly
Afterwards, alternately level, connection indicator lamp, indicator lamp working properly can flash output height；Module pin POWKEY is switching on and shutting down work(
Can pin, when pin is that low level inputs, GPRS/4G wireless communication modules enter shutdown mode, such purpose be in order to
Pattern of the equipment into low-power consumption when power down is set to extend service time of battery；RESET is reset pin, and low level has
Effect.
SMA antenna interface units, three SMA antenna pedestals connect high-speed radio module, low-speed wireless module, GPRS/ respectively
4G wireless communication modules.
RS232 communication interfaces do communication level conversion using SP3232EEA.Chip SP3232 is by driver, receiver, electricity
Lotus pump group is into Transistor-Transistor Logic level can be converted to 232 level opposite with input logic level.
RS485 communication interfaces, core board USART4 export 485 interfaces, carry out conversion communication by 485 chip U901,
R904 is 120R resistance primarily to the transmission resistance of matching twisted-pair feeder, reduces the reflection of transmission signal, on R905, R906 work
Leave behind pull-up resistor, be effectively reduced the bit error rate, D901, D902, D903 are TVS pipe, for doing transient absorption use, are prevented quiet
Electricity, interference of the surge voltage to chip, GDT901 is anti-thunder tube, is in normal operation shut-off, when there is instantaneous pressure mistake
Come, lightning protection light is breakdown, prevents voltage from further rising by arc discharge, is effectively protected back-end circuit element, does
Lightning protection is used, and PPT901, PPT902 are resettable fuse, in the case where output end has high current or short circuit, protection
Chip is not damaged by, and the Enable Pin of chip employs level shifting circuit, when core board is sending data, USART_TTL_TX
It is low level by level translation circuit Enable Pin for high level, otherwise receive data, Enable Pin is high level.
The circuit diagram of the display module of the present invention is as shown in Figure 4.The display module includes HMI display units, HMI shows
Display screen power switch unit, TTL RS 232 units.HMI display units are connected using 4 interfaces, and HMI_VCC is power supply interface,
HMI_TX/HMI_RX is communication interface, GND connection power supplys.HMI display screen power switch units, HMI current supply circuits are used and pressed
Key electrodynamic type triggers, and acquiescence display frequency is not work, and after SW601 crawls are pressed, by SW_I1 triggering, PWR_D2 outputs are high
Level, Q1202 conductings, PMOS VS ＞ VG, Q1201 conductings, B_DC5.5V provide voltage HMI_VCC and supplied for display screen afterwards
Electricity.TTL RS 232s unit uses UART communication Transistor-Transistor Logic levels, to do with core board UART5 232 level communications and once change,
Communication level conversion is done using SP3232EEA.
The circuit diagram of the detection module of the present invention is as shown in Figure 5.The detection module includes relay drive unit, double
Machine backup detection analog switch unit, phase shortage detection of power loss analog switch unit, switching value analog switch unit, two-shipper are standby
Part detection unit, phase shortage detection of power loss unit, switching value unit.
Relay drive unit carries out isolation control to triode using optocoupler makes relay primary coil both ends produce electricity
Pressure, the secondary conducting of last relay, three contacts of relay secondary are respectively RL1_CO（It is public）、RL1_NC（It is normally closed）、RL1_
NO（It is normally opened）Initial default is normally closed, i.e., 6,4 turn on 3 pin, when ST_K_O1 input high levels, the secondary conducting of optocoupler, is passed through
Pull up A_DC12V voltage driving, Q501 conductings, the primary coil of relay and A_DC12V simultaneously connect, and relay switch turns over
Turn, 6,4 pin turn on 5 pin, and 3 pin are hanging, and the loop being connected with 6,4 pin disconnects.Other three relay drive circuit principles and
It is consistent above.
In dual-host backup detection unit RL1_MCI between zero line if 220V control sources, by the R406 that connects,
D402, R407, when alternating voltage by and when reaching certain amplitude, the voltage that R407 is depressured to obtain by resistance reaches 0.7V
Left and right, make the primary LEDs ONs of U402, promote the phototriode conducting that optocoupler is secondary, CPU_RL1_MCI voltages
It is pulled low, when alternating voltage is not up to certain amplitude, the acquiescence high level that CPU_RL1_MCI voltages still detect, so having
During voltage, CPU_RL1_MCI waveform is that high level is short in a cycle, a pulse of low level length；When A phase voltages are fallen
Electricity, first diode do not turn on, and phototriode is in cut-off state, and AC_CHK_A is unanimously in the high potential of pull-up,
Core board I/O port AC_CHECK_O2 is connected to CPU_RL1_MCI by analog switch, and I/O port is interrupted using trailing edge triggering, entered
Horizontal pulse counts, and often triggers and once remembers pulsatile once, each gate time is 100mS（That is 5 doubling times）, see arteries and veins in gate time
Number is rushed, judges there is control source if >=3 times, as once represented the input of power down no-voltage, other dual-host backups without if
It is consistent to detect circuit theory.
Dual-host backup detection analog switch unit switches over detection using analog switch CD4067, and Pin15 C only exist
For low level when, analog switch could act, i.e. Pin15 C ground connection, the control by A0, A1, A2, A3 varying level state is defeated
Enter, select I0/O0-I15/O15 to be turned on AC_CHECK_O2, carry out switch switching and select different measure loops.AC_CHECK_
O2 is connected to CPU_RL1_MCI by analog switch, and I/O port is interrupted using trailing edge triggering, carries out step-by-step counting, often trigger one
Secondary note pulsatile once, each gate time are 100mS（That is 5 doubling times）, pulse number in gate time is seen, if >=3 times
Judgement has control source, and as once represented the input of power down no-voltage without if, it is consistent that other dual-host backups detect circuit theory.
CD4067 and CD4051 shares A0, A1, A2 input pin, so adds the utilization rate of I/O port, while do not influence analog switch
Regular event.
Phase shortage detection of power loss unit, by R301, D301, the R302 of connecting between A phases and zero line N, when there is alternating voltage
By and when reaching certain amplitude, the voltage that R302 is depressured to obtain by resistance reaches 0.7V or so, makes the primary hairs of U301
Optical diode turns on, and promotes the phototriode conducting that optocoupler is secondary, AC_CHK_A voltages are pulled low, when alternating voltage is not up to
Certain amplitude, the acquiescence high level that AC_CHK_A voltages still detect, so when having voltage, AC_CHK_A waveform is one
High level is short in cycle, a pulse of low level length；When A phase voltage power down, first diode does not turn on, photosensitive three pole
Pipe is in cut-off state, high potentials of the AC_CHK_A unanimously in pull-up.Core board I/O port AC_CHECK_O1 passes through analog switch
AC_CHK_A is connected to, I/O port is interrupted using trailing edge triggering, carries out step-by-step counting, often trigger and once remember pulsatile once, every time
Gate time is 100mS（That is 5 doubling times）, pulse number in gate time is seen, has control source if >=3 times, such as once
No then expression power down no-voltage input, other B phases, C phase detection of power loss principles are consistent with the above.
Phase shortage detection of power loss analog switch unit uses analog switch CD4051, chip Pin6 pins INH to be write from memory by being grounded
Think low level, inquired about according to chip handbook, when only INH is low level, analog switch could act, and otherwise end, and pass through
Core board exports A0, A1, A2 state, selects the tunnels of IN/OUT1- IN/OUT7 mono- to be turned on OUT/IN, OUT/IN connection cores
Core detects I/O port AC_CHECK_O1, and I/O port is interrupted using trailing edge triggering, carries out step-by-step counting, often trigger and once remember once
Pulse, each gate time are 100mS（That is 5 doubling times）, pulse number in gate time is seen, has voltage defeated if >=3 times
Enter, as once represented the input of power down no-voltage without if.CD4051 and CD4067 shares A0, A1, A2 input pin, so increases
The utilization rate of I/O port, while do not influence the regular event of analog switch.
Switching value unit, by default, for K1_IN without On-off signal, it is high that optocoupler is not turned on K1_OUT outputs
Level, but have On-off signal, optocoupler conducting, K1_OUT is pulled low, and exports low level, and core board AC_CHECK_O1 passes through mould
Intend switch and be connected to K1_OUT, detect K1_OUT level to judge the input state of switching value.Level as turns on to be low, level
It is to turn off for height, other four-way switch amounts detection circuit theory is consistent with the above.
Switching value analog switch unit, switching value output K1_OUT, K2_OUT, K3_OUT, K4_OUT pass through
Analog switch CD4051 is connected to AC_CHECK_O1, by the control of A0, A1, A2 input state, is turned on respectively with OUT/IN,
By core board ADC Port detecting states, level as turns on to be low, and level is shut-off for height.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Enclose and be defined.
Claims (10)
- A kind of 1. wireless remote timing control switch, when the controlling switch includes power supply module, communication module, display module, RTC Clock module and detection module, it is characterised in that：Power supply module is connected with communication module, display module, RTC clock module and detection module successively, for powering, detects mould Block is connected with communication module, detection data is transferred into communication module, the data after processing are sent to display mould by communication module Block is shown；The power supply module includes three phase mains supply input unit, AC/DC 12V power subsystems, DC6-28V direct current supplys input Unit, DC12V merge power supply unit, DC7.0 ~ 8.4V battery assembly modules, battery powered short-circuited terminal unit, battery charging and discharging list Member, DC/DC 5.5V power subsystems, DC/DC 3.3V power subsystems;The communication module includes ARM CPU wireless telecommunications core cell, GPRS/4G radio communication units, SMA antennal interface lists Member, RS232 communication interfaces, RS485 communication interfaces；The display module includes HMI display units, HMI display screen power switch unit, TTL RS 232 units；The detection module includes relay drive unit, dual-host backup detection analog switch unit, phase shortage detection of power loss and simulates and open Close unit, switching value analog switch unit, dual-host backup detection unit, phase shortage detection of power loss unit, switching value list Member.
- 2. wireless remote timing control switch according to claim 1, it is characterised in that：The three phase mains supply input unit is using three-phase electricity during the binding post guarantee equipment application of 7.62mm spacing Enough electrical isolations, by exchange power supply and distribution facility in triple line A, B, C, N totally 4 lines access this wireless remote timing control System switch, pile defection and equipment for three-phase voltage are powered.
- 3. wireless remote timing control switch according to claim 1, it is characterised in that：The DC6-28V direct current supplys input block selects the DC power supplier with higher lightning protection Anti-surging grade.
- 4. wireless remote timing control switch according to claim 1, it is characterised in that：The DC12V merges merging power supply of the power supply unit using 4 DC12V DC supply inputs, in A, B, C three-phase alternating current and DC6-28V direct currents are in totally 4 externally feds, as long as there is an externally fed input normally to ensure that wireless remote timing control Make the normal work of switch.
- 5. wireless remote timing control switch according to claim 1, it is characterised in that：When equipment does not work for a long time, the battery powered short-circuited terminal unit is disconnected, cell during discharge is avoided, in equipment During work, using wire by battery powered short-circuited terminal unit short circuit, power supply of the battery pack to equipment is completed.
- 6. wireless remote timing control switch according to claim 1, it is characterised in that：When external power source is powered, the battery charging and discharging unit is charged to battery pack, in outside power supply failure, DC/DC 5.5V power subsystems, the ARM CPU wireless telecommunications core lists to be discharged by the battery charging and discharging unit to equipment Member, GPRS/4G radio communication units, HMI display screen power switch units.
- 7. wireless remote timing control switch according to claim 1, it is characterised in that：The SMA antenna interface units include high-speed radio SMA interfaces, low-speed wireless SMA interfaces, GPRS/4G SMA and connect Mouthful.
- 8. wireless remote timing control switch according to claim 1, it is characterised in that：Power supply between the unit is divided into two classes, and the first kind merges power supply unit by DC12V, and by DC/ DC3.3V power subsystems provide a DC3.3V dc source, the DC12V merge power supply unit to relay drive unit, open Pass amount detection power supply, DC3.3V power supplys are powered to dual-host backup detection, phase shortage detection of power loss, RS485 communication interfaces；Second class is led to Cross DC12V and merge power supply, by battery charging and discharging unit, power supply power supply, the DC5.5V are provided to DC/DC 5.5V power modules Power supply is to ARM CPU wireless telecommunications core cell, GPRS/4G radio communication units, the power supply of HMI display units；In external communication When DC power supply is normal, all modules of equipment all in working condition, once device external power supply failure, it is necessary to When providing power supply by the battery pack of device interior, first kind power pack will be in state of stopping power supply, and be supplied in only second Electric part is powered using battery pack, electric quantity consumption when so reducing battery-powered to greatest extent, extension device without The time that the connection of line communication channel is kept.
- 9. wireless remote timing control switch according to claim 1, it is characterised in that：One dual-host backup detection function of the control design case for each contactor, passes through the dual-host backup detection function Realize that two or more timing control switch device backups control, when main equipment is working properly, pass through main equipment can The switch control of contactor is realized, in master-failure, the switch control of contactor can be realized by stand-by equipment；The control relay for each contactor has 4 alternating current signal detection points, can be detected by this 4 test points Contactor state of a control, 4 control relays control the switch of 4 contactors, a total of 4 × 4 totally 16 test points, by every From dual-host backup detection unit and 16 select 1 module switch that the signal of 16 test points is input into ARM CPU processing in turn The IRQ interrupt pins of device, judge whether to have on the IRQ pins impulse waveform of conversion to carry out dual-host backup signal inspection to circulate Survey, and calculate whether start standby control.
- 10. wireless remote timing control switch according to claim 1, it is characterised in that：The phase shortage detection of power loss, by detect electric circuit inspection input three phase mains supply input unit wires on whether have the cycle The sine wave signal of property, so as to judge A, B, C three phase mains whether phase shortage power down；The detection method for phase shortage power down is to select 1 analog switch to select by the phase shortage detection of power loss unit of isolation and 4 The IRQ interrupt pins that a detection signal is input to ARM CPU processors are selected, judge whether there is the arteries and veins of conversion on the IRQ pins Rush waveform and carry out phase shortage power-off signal detection to circulate.
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| CN201710867233.5A CN107491013A (en) | 2017-09-22 | 2017-09-22 | A kind of wireless remote timing control switch |
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| CN201710867233.5A CN107491013A (en) | 2017-09-22 | 2017-09-22 | A kind of wireless remote timing control switch |
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Application publication date: 20171219 |