CN205862163U - The data transmission device of breaker controller - Google Patents
The data transmission device of breaker controller Download PDFInfo
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- CN205862163U CN205862163U CN201620778915.XU CN201620778915U CN205862163U CN 205862163 U CN205862163 U CN 205862163U CN 201620778915 U CN201620778915 U CN 201620778915U CN 205862163 U CN205862163 U CN 205862163U
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Abstract
This utility model discloses the data transmission device of a kind of breaker controller, including: the first assembly and the second assembly, the first assembly has the first power supply, and the second assembly has second source, the first assembly and the second assembly share storage device.Second assembly is connected to the major loop of breaker controller, and the second assembly gathers the parameter of major loop and stores in the storage device, and second source is the second assembly power supply, and second source is by main circuit power supply.First assembly is connected to communication equipment, the data transmission between communication equipment and described storage device set up by first assembly, and the first power supply is the first assembly power supply, and the first power supply is powered by external power source, second source and the first power supply connect, and second source sends control signal to the first power supply.
Description
Technical field
This utility model relates to Low Voltage Electrical Apparatus, more particularly, it relates to possess the breaker controller of communication function.
Background technology
Along with the continuous progress of low voltage electrical apparatus industry, moulded case circuit breaker forward is intelligent, and can communicate development.
Breaker controller in the market does not the most have the data-transformation facility of versatility, if needing to read breaker control
Data in device, conventionally, need to use private communication facility and specific communications instruction, could be to breaker controller
Carry out the reading of data, read data during the equipment fault at the scene of this mode the most inconvenient.
Fig. 1 discloses the schematic diagram in prior art carried out data transmission breaker controller.As it is shown in figure 1, open circuit
Device controller has the assembly 100 for gathering and store data.Assembly 100 includes power supply 102, sample circuit 104, controls
Device 106 and storage device 108.Power supply 102 is connected in the major loop of breaker controller, by main circuit power supply.Power supply 102 to
Miscellaneous part in assembly 100 is powered.Sample circuit 104 is connected to the major loop of breaker controller, and sample circuit 104 gathers
Parameter in major loop.Controller 106 is connected to sample circuit 104 and storage device 108.Controller 106 controls sample circuit
In the 104 parameter storage devices 108 that will be gathered.Storage device 108 can be accessed by controller 106.Needing
When wanting the data in read storage device 108, special interface circuit 110 can be used.Special interface circuit 110 1 aspect is even
Receive the communication equipment of outside, such as PC, be on the other hand connected to controller 106.Special interface circuit 110 and controller
106, by the communication protocol specified, use specific communications command communication, controller 106 read required from storage device 108
Data, be compiled according to the communication protocol specified and transmit, obtain after data at PC and reduce again, to obtain storage dress
Put the data in 108.
In this, the defect of data transfer mode is fairly obvious: 1) controller and storage device are powered by power supply, only exist
In the case of power work, controller and storage device could normally work.But power supply is to be supplied by the major loop of breaker controller
Electricity.At the scene in the case of fault, the major loop of breaker controller is generally in dissengaged positions, and therefore power supply cannot work
Making, this has resulted in controller and storage device can not work, and causes obstacle to the process of field failure.2) need to use specially
Interface circuit and special communication protocol.Special communication is not had without being equipped with on special interface circuit or PC
Agreement, just cannot be carried out data communication.
Utility model content
This utility model discloses the data transmission device of a kind of breaker controller, including: the first assembly and second group
Part.First assembly includes the first power supply, connects interface, interface circuit and storage device；First power supply is by connecting interface by outward
Portion's power supply is powered, and first power supply all parts in the first assembly is powered；Connect interface and be connected to communication equipment and/or outside
Power supply；Interface circuit is connected to the first power supply, connects interface and storage device, and the first power supply passes through interface circuit to storage device
Power supply, connects interface and interface circuit sets up communication equipment and the data transmission stored between device.Second assembly includes second
Power supply, sample circuit, controller and storage device；Second source is connected in the major loop of breaker controller, second source
When major loop is connected, all parts in the second assembly is powered；Sample circuit is connected to the major loop of breaker controller,
Sample circuit gathers the parameter of major loop；Controller is connected with sample circuit and storage device, the parameter that sample circuit is gathered
Store in described storage device after processing via controller.Second source and the first power supply connect, and second source is to the first electricity
Source sends control signal.
In one embodiment, second source sends to the first power supply when controller is with storage communication and controls letter
Number, the first power supply is turned off to the connection between de-interfaced circuit and storage device.
In one embodiment, the number that communication equipment is only capable of in read storage device by connection interface and interface circuit
According to.
In one embodiment, the input of the first power supply passes through switching tube ground connection, and the input of the first power supply is also connected with
To the feeder ear of connection interface, the outfan of second source is connected to switching tube.The outfan output high level of second source, leaves
Pass pipe is connected, and the input of the first power supply is connected to ground and the first power supply is closed.The outfan output of second source is low
Level, switching tube closedown, the input of the first power supply and the feeder ear being connected interface connect, by the feeder ear control connecting interface
System.
In one embodiment, write-protect of the chip of interface circuit control pin input high level, one write guarantor
Protect control pin input low level, constitute write-protect circuit so that interface circuit is only capable of being read out storage device.
In one embodiment, the power input of the chip of storage device is connected to second source by diode respectively
Outfan and the output energization pins of chip of interface circuit.The outfan output high level of second source, passes through diode
For storing the chip power supply of device, the first power supply is closed, and the output energization pins of the chip of interface circuit does not export power supply electricity
Flat.The outfan output low level of second source, the first electric power starting, the output energization pins output of the chip of interface circuit supplies
Electricity level is the chip power supply of storage device.
In one embodiment, the chip selection signal pin of the chip of storage device is connected to controller by diode respectively
The sheet choosing output of the sheet choosing output chip that controls pin and interface circuit control pin.The high electricity of outfan output of second source
Flat, the first power supply is closed, and the sheet of the chip that the sheet choosing output of controller controls pin output chip selection signal, interface circuit selects defeated
Going out to control pin and do not export chip selection signal, the chip of storage device selects and controller communication.The outfan output of second source
Low level, the first electric power starting, the sheet choosing output of controller controls the sheet that pin does not export the chip of chip selection signal, interface circuit
Choosing output controls pin output chip selection signal, and the chip of storage device selects the chip communication with interface circuit.
In one embodiment, the reading data of the chip of storage device enable pin and are connected to control by diode respectively
The reading reading to enable the chip controlling pin and interface circuit of device enables control pin.The high electricity of outfan output of second source
Flat, the first power supply is closed, and the reading reading to enable the chip that control pin output enables signal, interface circuit of controller enables control
Making foot does not export enable signal, and the chip of storage device is read by controller.The outfan output low level of second source, the
One electric power starting, the reading enable control reading to enable the chip that control pin does not export enable signal, interface circuit of controller is drawn
Foot output enables signal, and the chip of storage device is read to be read by the chip of interface circuit.
In one embodiment, the write-protect pin of the chip of storage device is connected to the outfan of second source.Second
The outfan output high level of power supply, the write-protect pin of the chip of storage device is connected to high level, the chip of storage device
Allow write.The outfan output low level of second source, the write-protect pin of the chip of storage device is connected to low level, deposits
The chip of storage device does not allow write.
In one embodiment, the enable of writing writing enable pin connection controller of the chip of storage device controls pin,
And pass through resistance eutral grounding.The outfan output high level of second source, writing of the chip of storage device enables pin according to control
The control signal writing enable control pin of device judges whether to write enable.The outfan output low level of second source, storage dress
Writing of the chip put enables pin ground connection input low level, and the chip of storage device can not write.
In one embodiment, the condition indicative signal pin of the chip of storage device is connected to second source by resistance
Outfan, be also connected to the I/O port of controller.The chip of storage device is in busy condition, output low level, and low level is sent
Entering the I/O port of controller, controller waits.The chip of storage device is in not busy state, exports high level, and high level sends into control
The I/O port of device processed, controller can operate.
In one embodiment, the order of the chip of storage device is latched control pin and is connected to the order latch of controller
Control pin.The address latch of the chip of storage device controls pin and is connected to the address latch control pin of controller.
According to an embodiment of the present utility model, the data transmission method of a kind of breaker controller is proposed, including: gather
In the storage device, described collection and storage are powered by second source, and second source is by major loop for the parameter of major loop storage
Power supply.Setting up the data transmission between communication equipment and described storage device, the transmission of described data is powered by the first power supply, and first
Power supply is powered by external power source.
In one embodiment, communication equipment is connected to store device by connecting interface and interface circuit, sets up and deposits
Data transmission between storage device.First power supply is connected to external power source by described connection interface.
In one embodiment, connecting interface is USB interface, and interface circuit is usb circuit.
In one embodiment, second source, during by parameter storage device, sends to the first power supply
Control signal, the first power supply is turned off to the data transmission disconnecting between communication equipment and storage device.
In one embodiment, the data during communication equipment is only capable of read storage device.
The data transmission device of breaker controller of the present utility model forms two assemblies, two each own independences of assembly
Power supply power, and common memory device.The assembly being connected with major loop, by main circuit power supply, gathers the parameter of major loop also
In storage to storage device.The assembly being connected with communication equipment uses general-purpose interface, external power source power and can pass through general
Interface provides data transmission.The data transmission device of this breaker controller can rely on outside in the case of major loop disconnects
Power supply obtains the data in storage device, and can use the general-purpose interface of such as USB, it is simple to execute-in-place.
Accompanying drawing explanation
The above and other feature of this utility model, character and advantage by by below in conjunction with the accompanying drawings with embodiment
Describing and become apparent, the most identical reference represents identical feature all the time, wherein:
Fig. 1 discloses the schematic diagram in prior art carried out data transmission breaker controller.
The structure of the data transmission device that Fig. 2 discloses the breaker controller according to an embodiment of the present utility model is shown
It is intended to.
Fig. 3 discloses in the data transmission device of the breaker controller according to an embodiment of the present utility model first group
The circuit diagram of part.
Fig. 4 discloses storage dress in the data transmission device of the breaker controller according to an embodiment of the present utility model
The circuit diagram put.
Fig. 5 discloses in the data transmission device of the breaker controller according to an embodiment of the present utility model and controls
Device, storage device and the pin connection diagram of interface circuit.
Detailed description of the invention
With reference to shown in Fig. 2, Fig. 2 discloses the data transmission of the breaker controller according to an embodiment of the present utility model
The structural representation of device.The data transmission device of this breaker controller includes: the first assembly 200 and the second assembly 300.The
One assembly has the first power supply, and the second assembly has second source, the first assembly and the second assembly share storage device.Second group
Part is connected to the major loop of breaker controller, and the second assembly gathers the parameter of major loop and stores in the storage device, and second
Power supply is the second assembly power supply, and second source is by main circuit power supply.First assembly is connected to communication equipment, and the first assembly is set up logical
Data transmission between letter equipment and described storage device, the first power supply is the first assembly power supply, and the first power supply is by external power source
Power supply, second source and the first power supply connect, and second source sends control signal to the first power supply.
With continued reference to shown in Fig. 2, the second assembly 300 includes second source 302, sample circuit 304, controller 306 and deposits
Storage device 400.Second source 302 is connected in the major loop of breaker controller, second source 302 when major loop is connected to
All parts in second assembly is powered.Sample circuit 304 is connected to the major loop of breaker controller, and sample circuit 304 is adopted
The parameter of collection major loop.The parameter of the major loop that sample circuit 304 is gathered includes the electric current of major loop, voltage etc..Controller
306 are connected with sample circuit 304 and storage device 400.Controller 306 controls sample circuit 304 and the work of storage device 400
State.The parameter that sample circuit 304 is gathered stores in device 400 after processing via controller 306.
First assembly 200 includes the first power supply 202, connects interface 204, interface circuit 206 and described storage device 400.
Storage device 400 i.e. belongs to the first assembly 200, belongs to again the second assembly 300, in other words, the first assembly 200 and the second assembly
300 common memory devices 400.It should be noted that the first assembly 200 and the second assembly 300 are the concepts of relative virtual, at figure
In make first assembly 200 and the second assembly 300 that be indicated by the dashed box, the first assembly 200 and the second assembly 300 each include several
The parts of entity, divide according to the function realized and form the first assembly and the second assembly.Storage device 400 had both been put under first group
Part, is put again under the second assembly.Storage device 400 can use nonvolatile memory to realize, and combines for applied environment
Conjunction is considered (capacity, access speed require), and storage device 400 generally selects the solid-state memory of such as flash storage.One
In individual embodiment, storage device 400 uses NAND nonvolatile memory.First power supply 202 is by connecting interface 204 by outward
Portion's power supply is powered, and first power supply 202 all parts in the first assembly is powered.Connect interface 204 be connected to communication equipment and/
Or external power source.Interface circuit 206 is connected to the first power supply 202, connects interface 204 and storage device 400, the first power supply 202
Powered to storage device 400 by interface circuit 206, connect interface 204 and interface circuit 206 sets up communication equipment and storage dress
Put the data transmission between 400.In one embodiment, connecting interface 204 is USB interface, and interface circuit 206 is USB interface
Circuit.USB interface and usb circuit possess data transmission and the dual-use function of electric energy transmission.Therefore, USB interface is passed through
And usb circuit, can realize communication equipment and storage device between data transmission, can realize again the first power supply 202 by
External power source is powered.In one embodiment, communication equipment is PC, and PC, by USB interface thereon, can be on the one hand first
Power supply 202 provides external power source, on the other hand can be carried out data transmission by USB interface again, obtains the number in storage device 400
According to, these data are the parameters about major loop gathered by sample circuit.
During the first assembly 200 communicates with communication equipment, its operation principle is similar to by USB interface even
The memorizer connect, such as USB flash disk.After connecting the corresponding interface (USB interface) that interface 204 (USB interface) is connected on communication equipment,
First power supply 202 is by connecting interface 204 with external power source (being provided by the USB interface on communication equipment as external power source) even
Logical, the first power supply 202 is started working, and powers for interface circuit 206 and storage circuit 400.Communication equipment, connection interface, interface
Setting up data transmission path between circuit and storage circuit, storage circuit can be accessed by communication equipment.An enforcement
In example, it is in the consideration of mode of operation, the number that communication equipment is only capable of in read storage device by connection interface and interface circuit
According to, and storage device can not be carried out write operation, therefore the data in storage device cannot be repaiied by communication equipment (PC)
Change.The function of this restriction write can realize by the way of increasing write-protect circuit in interface circuit 206.Additionally,
Interface circuit 206 can also increase encrypted circuit so that communication equipment needs to input password when accessing storage device, to improve
The safety of data access.
Owing to storage device 400 belongs simultaneously to the first assembly and the second assembly, the interface circuit in the first assembly and second
Storage device 400 can be conducted interviews and the access of data by the controller in assembly.In order to prevent storage device 400
Conflict operation, this utility model is provided with such a way avoid to storage device conflict operation: second source exists
Sending control signal to the first power supply when controller and storage communication, the first power supply is turned off to de-interfaced circuit and deposits
Connection between storage device.Because the first assembly only has reading authority for storage device, and the second assembly is for storage dress
Put whole authorities with read-write, therefore when storage device is operated by the controller of the second assembly, the first assembly for
The access of storage device is limited.By the control of the first power supply being realized the first assembly to storage device in this utility model
The restriction of access.When storage device is communicated by controller, second source sends control signal to the first power supply so that
First power supply quits work, and after the first power supply quits work, interface circuit no longer works, then communication equipment, connect interface, connect
Data transmission path between mouth circuit and storage circuit is cut off.
The data transmission method that the data transmission device of the breaker controller shown in Fig. 2 performs is as follows:
Gather the parameter of major loop and store in the storage device, gathering and store and powered by second source, second source
By main circuit power supply.This step the second assembly as shown in Figure 2 realizes.
Setting up the data transmission between communication equipment and storage device, data transmission is powered by the first power supply, the first power supply
Powered by external power source.This step the first assembly as shown in Figure 2 realizes.
Two above-mentioned steps are the most independent, there is not ordering relation successively, but as described above,
In order to prevent the conflict operation to storage device, this data transmission method have employed such a way: second source exists
During parameter storage device, sending control signal to the first power supply, the first power supply is turned off to disconnect communication
Data transmission between equipment and storage device.
In one embodiment, communication equipment, such as PC are connected to store device by connecting interface and interface circuit, build
Data transmission that is vertical and that store between device.First power supply is connected to external power source by connecting interface.Connecting interface can be
USB interface, interface circuit can be usb circuit.Owing to USB can provide data transmission and electric energy to transmit, therefore pass through
USB just can realize the data transmission of the power supply for the first power supply and communication equipment simultaneously, and such as PC can utilize its USB to connect
First power supply is powered by mouth simultaneously as external power source, the data in read storage device again.
According to the data transmission method of breaker controller of the present utility model, the major loop at breaker controller is connected
Time in running order, second source obtains power supply.Under the control of the controller, sample circuit gathers the parameter of major loop, control
Device processed stores in device after processing above-mentioned parameter.When needs read data from storage device, by even
Connection interface connects communication equipment, such as PC.After being connected to PC, the first power supply obtains power supply by connecting interface.Now, if controlled
Storage device is not operated by device processed, then second source will not send control instruction to the first power supply, and the first power supply is normal
Work, PC can read data by connecting interface and interface circuit from storage device.If controller is to storage dress
Put and operate, then second source sends control instruction to the first power supply, and the first power supply is stopped, and PC cannot be by connecting interface
From storage device, data are read with interface circuit.If major loop fault and disconnect, then second source loses power supply and not work
Make.Now the first power supply is not owing to receiving the control instruction that second source sends, external power source still can be relied on to power and
Normal work, PC can read data by connecting interface and interface circuit from storage device.
In one embodiment, communication equipment can be set by the way of increasing write-protect circuit in interface circuit
Authority so that communication equipment is only capable of the data in read storage device, and storage device can not be carried out write operation and change
Become data therein.Password can also be set by increasing encrypted circuit in interface circuit, promote telecommunication circuit to storage
The safety of the access of device.
Data transmission device according to of the present utility model breaker controller is described below implements circuit.Reference
Fig. 3, Fig. 3 disclose the first assembly in the data transmission device of the breaker controller according to an embodiment of the present utility model
Circuit diagram.Fig. 3 chips U3 be interface circuit, chip J1 be to connect interface, VCC is the input of the first power supply.First power supply
Input VCC by pull-up resistor R5 access connect interface J1 energization pins (No. 1 pin, pin name VCC) on, first electricity
The input VCC in source is also connected to the colelctor electrode of audion Q1.Audion Q1 grounded emitter GND.The base stage of audion Q1 connects
The outfan VCCMCU of second source.Second source controls letter by outfan VCCMCU and audion Q1 to the first power supply output
Number.When the second assembly is gathering and is processing data and writing data into storage device, the outfan VCCMCU of second source
Output high level, audion Q1 turns on, and the input VCC of the first power supply is grounded so that the first power supply does not works.When second group
The most operationally, storage device can be operated part by the first assembly, the outfan VCCMCU output low level of second source, and three
Pole pipe Q1 turn off, the input VCC of the first power supply by pull-up resistor R5 receive connection interface J1 energization pins, at this moment, as
Fruit connects interface (USB interface) and is connected to external power source, then VCC can export high level so that the first power supply is started working.
The write-protect of the chip U3 of interface circuit controls pin FMRDXBZY and is connected to VCC3.3, with input high level.
The write-protect of the chip U3 of interface circuit controls pin FMXWP and is connected to GND, input low level.The chip U3 of interface circuit
Write-protect control pin FMRDXBZY connect high level, FMXWP connect low level configuration make the chip U3 of interface circuit for
The chip U2 of storage device is in and can carry out read operation at any time but can not carry out the state of write operation.As previously described, this practicality
Novel middle interface circuit only exists the authority of reading for storage device, does not has the claim of write, the therefore chip of interface circuit
The operations such as the chip U2 of storage device will not be wiped by U3, write, only carry out read operation.The chip U2 docking of storage device
For the chip U3 of mouth circuit, SBR is always for reading order, and writing commands is not accept.Therefore will
FMRDXBZY pin accesses high level, FMXWP pin is accessed low level, thus constitutes the write-protect of the chip U3 of interface circuit
Circuit.
In figure 3, between the input VCC and ground GND of the first power supply, it is also associated with auxiliary element: include fuse
F1, electric capacity C4, electric capacity C6.These auxiliary elements play protection and the effect of isolation.Connect interface J1 and have 5 pins, except
Outside No. 1 above-mentioned pin, also include No. 2 pin DATA-, No. 3 pin DATA+, No. 4 pin GND and No. 5 pin FGND.Interface
The chip U3 of circuit also includes following pin: VCC2FM, USB_DP, USB_DM, FMXCHIP1, FMXRD.The DATA-pin of J1
Be connected to the USB_DM pin of U3 by resistance R9, the DATA+ pin of J1 is connected to the USB_DP pin of U3 by resistance R10,
The DATA+ pin of J1 is connected to No. 4 pin GND and No. 5 pin FGND ground connection GND of VCC3.3, J1 also by resistance R8, U3's
VCC2FM pin is connected to VCC2FM signal end (can further describe) in conjunction with the chip U2 of Fig. 4, and the FMXCHIP1 pin of U3 is even
Receiving FMXCHIP1 signal end (can further describe) in conjunction with the chip U2 of Fig. 4, the FMXRD pin of U3 is connected to FMXRD signal
End (can further describe in conjunction with the chip U2 of Fig. 4).These above-mentioned modes of connection all with general USB interface and USB interface
The connected mode of circuit is similar to, and is not described in detail herein.
Fig. 4 discloses storage dress in the data transmission device of the breaker controller according to an embodiment of the present utility model
The circuit diagram put.Fig. 4 chips U2 is the chip of storage device.(two are drawn the power input VCC of the chip U2 of storage device
Foot VCC constitutes the power input of chip U2).The power input VCC of chip U2 is connected to by the first diode D1
VCC2FM signal end, VCC2FM signal end is that the VCC2FM pin with U3 is connected, and VCC2FM pin is that the output of chip U3 is powered
Pin.The power input VCC of chip U2 is connected to the outfan VCCMCU of second source also by the second diode D2.Pass through
Chip U2 can be powered by above-mentioned connected mode, the first power supply or second source.Specifically, when the second assembly
When gathering and processing data and writing data into storage device, the outfan VCCMCU of second source exports high level, core
The power input VCC of sheet U2 is powered by the second diode D2 by VCCMCU.In conjunction with above description, it is high electricity at VCCMCU
At ordinary times, the first power-off, chip U3 does not works, and therefore the VCC2FM pin of chip U3 is low level.When the second assembly does not has
Having operationally, VCCMCU is low level, and as described above, VCCMCU is that low level then the first power supply is according to USB interface
Whether connect and work, when USB interface connects, the first power work, chip U3 also works, and the VCC2FM output of chip U3 supplies
Electricity level (high level).Now the VCC of chip U2 is powered by VCC2FM by the first diode D1.
The reading data of chip U2 enable pin RE and are connected to FMXRD signal end, FMXRD signal end by the 3rd diode D3
Being connected to the FMXRD pin of chip U3, FMXRD pin is that the reading of chip U3 enables control pin.The reading data of chip U2 enable
Pin RE is connected to MCURD signal end also by the 4th diode D4, and MCURD signal end is connected to the MCU chip of controller
Read to enable and control pin MCURD (MCU chip is not shown).The chip selection signal pin CE of chip U2 is connected by the 5th diode D5
To FMXCHIP1 signal end, FMXCHIP1 signal end connects the FMXCHIP1 pin of chip U3, and FMXCHIP1 pin is chip U3
Sheet select output control terminal FMXCHIP1.The chip selection signal pin CE of chip U2 is connected to also by the 6th diode D6
MCUXCHIP1 signal end, MCUXCHIP1 signal end is connected to the sheet choosing output of the MCU chip of controller and controls pin
MCUXCHIP1 (MCU chip is not shown).By above-mentioned connected mode, the chip U3 of the interface circuit in the first assembly or
The MCU chip of the controller in the second assembly can carry out sheet selection operation and digital independent behaviour to the chip U2 of storage device
Make.Similar with foregoing situation, when the second assembly is gathering and processing data and writing data into storage device, i.e.
When chip U2 is operated by MCU chip, second source can control the first power-off, and therefore chip U3 will not work,
FMXCHIP1 pin does not produce chip selection signal, FMXRD pin does not produce enable signal.The CE pin of chip U2 passes through the six or two pole
Pipe D6 receives MCUXCHIP1 chip selection signal, selects MCU chip to communicate with chip U2, and the RE pin of chip U2 passes through the 4th
Diode D4 receives MCURD signal and is read out by MCU chip.When the second assembly does not works, MCU chip does not works,
MCUXCHIP1 does not produce chip selection signal, MCURD pin does not produce enable signal.Now when chip U3 works, the CE of chip U2
Pin receives FMXCHIP1 chip selection signal by the 5th diode D5, selects chip U3 (interface circuit) to communicate with chip U2, core
The RE pin of sheet U2 receives FMXRD signal by the 3rd diode D3 and is read out by chip U3.By above-mentioned setting, will not
The situation that chip U2 communicates with chip U3 and MCU chip simultaneously occurs.
The write-protect pin WP of chip U2 is connected to the outfan VCCMCU of second source.Second source is the second assembly
Power supply, when the outfan of second source exports high level, the write-protect pin WP of chip U2 receives operation level, permits
Permitted to carry out write operation.When the outfan output low level of second source, the write-protect pin WP of chip U2 does not receives work
Make level, the most do not allow to carry out write operation.By the write-protect pin WP of chip U2 being connected to the output of second source
End is connected so that only having the second assembly and have the write authority to storage device, the first assembly does not possess write authority.When leading back
When road and controller the most normally work, need storage device write data, the at this moment write-protect pin output to storage device
High level is to allow write operation.When major loop does not works, the second assembly does not works, and the first assembly only has the power of reading
Limit, therefore the write-protect pin output low level to storage device, does not allow to carry out write operation.
The enable of writing writing the MCU chip that enable pin WE is connected to controller of chip U2 controls pin MCUXWR (MCU core
Sheet is not shown), and by pull down resistor R6 ground connection GND.When MCU chip is in running order, the enable of writing of chip U2 is drawn
Foot WE judges whether to write enable according to the control signal writing enable control pin MCUXWR of MCU chip.When MCU chip does not works
Time, the enable pin WE that writes of chip U2 is grounded input low level, now can not carry out write operation.
The condition indicative signal pin R/B of chip U2 is connected to the outfan of second source by pull-up resistor R4
The condition indicative signal pin R/B of VCCMCU, chip U2 is also connected to the I/O port (this connection is not shown) of MCU chip.Work as core
When sheet U2 is in busy condition, output low level, low level sends into the I/O port of MCU chip, MCU chip wait.At chip U2
When not busy state, exporting high level, high level sends into the I/O port of MCU chip, and MCU chip can carry out various operation.
The order of chip U2 is latched control pin CLE and is connected to MCUCLE signal end, and MCUCLE signal end is connected to MCU core
The order of sheet is latched and is controlled pin MCUCLE.The address latch of chip U2 controls pin ALE and is connected to MCUALE signal end,
MCUALE signal end is connected to the address latch of MCU chip and controls pin MCUALE.
Fig. 5 discloses in the data transmission device of the breaker controller according to an embodiment of the present utility model and controls
Device, storage device and the pin connection diagram of interface circuit.In one embodiment, MCU chip U1 of controller is selected
MSP430F247TPMR, the chip U3 of interface circuit select AU9380-48PIN, the chip U2 of storage device to select
K9F5608U0A-YCB0.P5.0～the P5.7 exterior I/O port of MCU chip U1 respectively with the chip U3 pin of interface circuit
FMIO7～FMIO0 is in parallel, and accesses IO7～the IO0 pin of the chip U2 of storage device.
The data transmission device of breaker controller of the present utility model forms two assemblies, two each own independences of assembly
Power supply power, and common memory device.The assembly being connected with major loop, by main circuit power supply, gathers the parameter of major loop also
In storage to storage device.The assembly being connected with communication equipment uses general-purpose interface, external power source power and can pass through general
Interface provides data transmission.The data transmission device of this breaker controller can rely on outside in the case of major loop disconnects
Power supply obtains the data in storage device, and can use the general-purpose interface of such as USB, it is simple to execute-in-place.
Above-described embodiment is available to be familiar with person in the art and realizes or use of the present utility model, is familiar with ability
The personnel in territory can in the case of without departing from utility model thought of the present utility model, above-described embodiment is made various modifications or
Change, thus protection domain of the present utility model is not limited by above-described embodiment, and should be to meet claims to mention
The maximum magnitude of inventive features.
Claims (12)
1. the data transmission device of a breaker controller, it is characterised in that including: the first assembly and the second assembly；
Described first assembly includes the first power supply, connects interface, interface circuit and storage device；First power supply is by described connection
Interface is powered by external power source, and first power supply all parts in the first assembly is powered；Connect interface and be connected to communication equipment
And/or external power source；Interface circuit is connected to the first power supply, connects interface and described storage device, and the first power supply passes through interface
Circuit is powered to described storage device, and described connection interface and interface circuit are set up between communication equipment and described storage device
Data are transmitted；
Described second assembly includes second source, sample circuit, controller and described storage device；Second source is connected to open circuit
In the major loop of device controller, second source all parts in the second assembly when major loop is connected is powered；Sample circuit
Being connected to the major loop of breaker controller, sample circuit gathers the parameter of major loop；Controller and sample circuit and storage dress
Putting connection, the parameter that sample circuit is gathered stores in described storage device after processing via controller；
Wherein second source and the first power supply connect, and second source sends control signal to the first power supply.
2. the data transmission device of breaker controller as claimed in claim 1, it is characterised in that controller and storage device
Communication, described second source sends control signal to the first power supply, and the first power supply is turned off to de-interfaced circuit and storage dress
Connection between putting.
3. the data transmission device of breaker controller as claimed in claim 2, it is characterised in that described communication equipment passes through
The data that connection interface and interface circuit are only capable of in read storage device.
4. the data transmission device of breaker controller as claimed in claim 3, it is characterised in that described first power supply defeated
Entering end by switching tube ground connection, the input of the first power supply is also connected to connect the feeder ear of interface, described second source defeated
Go out end and be connected to switching tube；
The outfan output high level of second source, switching tube connection, the input of the first power supply is connected to ground and makes first
Power supply is closed；
The outfan output low level of second source, switching tube closedown, the input of the first power supply and the feeder ear being connected interface
Connect, the feeder ear connecting interface control.
5. the data transmission device of breaker controller as claimed in claim 3, it is characterised in that the chip of interface circuit
One write-protect controls pin input high level, a write-protect control pin input low level, constitutes write-protect circuit so that
Interface circuit is only capable of being read out storage device.
6. the data transmission device of breaker controller as claimed in claim 3, it is characterised in that the chip of storage device
Power input is connected to the output energization pins of the outfan of second source and the chip of interface circuit respectively by diode；
The outfan output high level of second source, by the chip power supply that diode is storage device, the first power supply is closed,
The output energization pins of the chip of interface circuit does not export power supply electrical level；
The outfan output low level of second source, the first electric power starting, the output energization pins output of the chip of interface circuit
Power supply electrical level is the chip power supply of storage device.
7. the data transmission device of breaker controller as claimed in claim 3, it is characterised in that the chip of storage device
Chip selection signal pin is connected to the sheet choosing output control pin of controller and the sheet of the chip of interface circuit by diode respectively
Choosing output controls pin；
The outfan output high level of second source, the first power supply is closed, and the sheet choosing output of controller controls pin output chip
The sheet choosing output selecting the chip of signal, interface circuit controls pin and does not export chip selection signal, and the chip of storage device selects and control
Device communication processed；
The outfan output low level of second source, the first electric power starting, the sheet choosing output of controller controls pin not output chip
The sheet choosing output selecting the chip of signal, interface circuit controls pin output chip selection signal, and the chip of storage device selects and interface
The chip communication of circuit.
8. the data transmission device of breaker controller as claimed in claim 3, it is characterised in that the chip of storage device
Read data and enable the reading that pin is connected to the chip reading enable control pin and interface circuit of controller respectively by diode
Enable and control pin；
The outfan output high level of second source, the first power supply is closed, and the reading of controller enables and controls pin output enable
Signal, the reading of chip of interface circuit enable and control pin and do not export enable signal, and the chip of storage device is read by controller；
The outfan output low level of second source, the first electric power starting, the reading of controller enables control pin and does not export enable
Signal, interface circuit chip reading enable control pin output enable signal, storage device chip read by interface circuit
Chip reads.
9. the data transmission device of breaker controller as claimed in claim 3, it is characterised in that the chip of storage device
Write-protect pin is connected to the outfan of second source；
The outfan output high level of second source, the write-protect pin of the chip of storage device is connected to high level, storage dress
The chip put allows write；
The outfan output low level of second source, the write-protect pin of the chip of storage device is connected to low level, storage dress
The chip put does not allows write.
10. the data transmission device of breaker controller as claimed in claim 3, it is characterised in that the chip of storage device
Write and enable pin and connect the enable of writing of controller and control pin, and pass through resistance eutral grounding；
The outfan output high level of second source, the enable pin of writing of the chip of storage device is controlled according to the enable of writing of controller
The control signal of making foot judges whether to write enable；
The outfan output low level of second source, writing of the chip of storage device enables pin ground connection input low level, storage
The chip of device can not write.
The data transmission device of 11. breaker controllers as claimed in claim 3, it is characterised in that the chip of storage device
Condition indicative signal pin be connected to the outfan of second source by resistance, be also connected to the I/O port of controller；
The chip of storage device is in busy condition, output low level, and low level sends into the I/O port of controller, and controller waits；
The chip of storage device is in not busy state, exports high level, and high level sends into the I/O port of controller, and controller can enter
Row operation.
The data transmission device of 12. breaker controllers as claimed in claim 3, it is characterised in that
The order latch control pin of the chip of storage device is connected to the order latch of controller and controls pin；
The address latch of the chip of storage device controls pin and is connected to the address latch control pin of controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620778915.XU CN205862163U (en) | 2016-07-22 | 2016-07-22 | The data transmission device of breaker controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620778915.XU CN205862163U (en) | 2016-07-22 | 2016-07-22 | The data transmission device of breaker controller |
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| Publication Number | Publication Date |
|---|---|
| CN205862163U true CN205862163U (en) | 2017-01-04 |
Family
ID=57649504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620778915.XU Active CN205862163U (en) | 2016-07-22 | 2016-07-22 | The data transmission device of breaker controller |
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| Country | Link |
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| CN (1) | CN205862163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018014715A1 (en) * | 2016-07-22 | 2018-01-25 | 上海电科电器科技有限公司 | Data transmission device of circuit breaker controller and data transmission method |
| CN107911176A (en) * | 2017-12-27 | 2018-04-13 | 长沙深之瞳信息科技有限公司 | A kind of mini signals solution tuned plate and its operating method |
-
2016
- 2016-07-22 CN CN201620778915.XU patent/CN205862163U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018014715A1 (en) * | 2016-07-22 | 2018-01-25 | 上海电科电器科技有限公司 | Data transmission device of circuit breaker controller and data transmission method |
| US11256225B2 (en) | 2016-07-22 | 2022-02-22 | Seari Electric Technology Co., Ltd. | Data transmission apparatus of circuit breaker controller |
| CN107911176A (en) * | 2017-12-27 | 2018-04-13 | 长沙深之瞳信息科技有限公司 | A kind of mini signals solution tuned plate and its operating method |
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