CN209072487U - A kind of signal transmitting apparatus based on high frequency inverter transmission channel - Google Patents
A kind of signal transmitting apparatus based on high frequency inverter transmission channel Download PDFInfo
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- CN209072487U CN209072487U CN201821991969.XU CN201821991969U CN209072487U CN 209072487 U CN209072487 U CN 209072487U CN 201821991969 U CN201821991969 U CN 201821991969U CN 209072487 U CN209072487 U CN 209072487U
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- signal transmitting
- coupling coil
- high frequency
- full bridge
- transmission channel
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- 230000008878 coupling Effects 0.000 claims abstract description 34
- 238000010168 coupling process Methods 0.000 claims abstract description 34
- 238000005859 coupling reaction Methods 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The utility model discloses a kind of signal transmitting apparatus based on high frequency inverter transmission channel, include central control board, DC power supply, high-frequency carrier generator, analog switch, encoder, full bridge inverter, signal transmitting coil and main coupling coil in Central Control Room；It in the field of equipment include full bridge rectifier, electric source filter circuit, several reception coupling coils and its filtering to connect one to one and decoding circuit；Described several receive coupling coil and are connected in series, and connect with the main coupling coil；The reception coupling coil of the last bit connects full bridge rectifier, and the full bridge rectifier connects electric source filter circuit.The utility model realizes that control room transmits control instruction to field control equipment using power delivery channel, simplifies the laying form using power supply and Signal separator channel, has saved cost, improved system construction efficiency.
Description
Technical field
The utility model relates to accessory technical field, specifically a kind of letter based on high frequency inverter transmission channel
Number transmitting device.
Background technique
In the power supply conveying of special occasions, such as industry spot, down hole drill, high-tension apparatus, it is same needing to power
When, it is also necessary to from outside transmission control instruction to field device, just needs individually to be laid with the communications cable at this time, increase workload
While, also add laying cost.
The prior art is to realize power supply and order often through laying power delivery cable respectively and output transmission line cable
It transmits, under this scheme, is often limited by space, be not easy to be laid with a plurality of cable, secondly in long distance transmission, can increase
This while of addition, increase workload.
Utility model content
Aiming at the defects existing in the prior art, the technical problem to be solved by the present invention is to provide one kind
Signal transmitting apparatus based on high frequency inverter transmission channel.
The utility model technical solution used for the above purpose is: one kind is logical based on high frequency inverter transmission
The signal transmitting apparatus in road includes central control board, DC power supply, high-frequency carrier generator, analog switch, volume in Central Control Room
Code device, full bridge inverter, signal transmitting coil and main coupling coil；The central control board connection encoder and full-bridge inverting
Circuit, for generating the pwm signal of control instruction data to be transmitted and two-way complementary phases difference difference 180 degree: the first pulse letter
Number and the second pulse signal, the control instruction data to be transmitted and the first output of pulse signal to encoder, first arteries and veins
Signal and the second output of pulse signal are rushed to full bridge inverter；The encoder connects high frequency carrier by analog switch
Device, the analog switch connection signal transmitting coil.The signal transmitting coil connection full bridge inverter and main coupling coil；
Include in the field of equipment full bridge rectifier, electric source filter circuit, several receive coupling coils and its one by one
The filtering being correspondingly connected with and decoding circuit；It is described several receive coupling coils be connected in series, and with the main coupling coil string
Connection；The reception coupling coil of the last bit connects full bridge rectifier, and the full bridge rectifier connects electric source filter circuit.
The central control board uses built-in industrial control machine or embedded microprocessor.
The supply voltage magnitude of the DC power supply is set according to field device.
Using DDS digit chip or analog high frequency circuit occurs for the high-frequency carrier generator.
The analog switch uses the integrated chip of ADG419 analog voltage signal.
The encoder is used for drive analog switch.
The reception coupling coil voltage, which meets, to be greater than 0.8V and is less than 5V, and the main coupling coil voltage is received greater than N*
Coupling coil voltage+2, N are the number of nodes for receiving coupling coil.
The utility model have the following advantages that and the utility model has the advantages that
1, the utility model realizes that control room transmits control instruction to field control equipment using power delivery channel, simplifies
Using the laying form of power supply and Signal separator channel, cost is saved, system construction efficiency is improved.
2, private communication cable or other communication transmission medias needed for the utility model saves field device, it is at low cost,
System is simple, without complicated communication system or communication protocol.
Detailed description of the invention
Fig. 1 is the utility model general principles block diagram；
Fig. 2 is that the high frequency carrier of the utility model and inverter output voltage load relational graph.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.
The utility model entirety functional block diagram is illustrated in fig. 1 shown below, and major function is that Central Control Room for field device provides power supply
With control instruction data.It mainly include console, DC power supply, high-frequency carrier generator, analog switch, volume in terms of Central Control Room
Code device, full bridge inverter, signal transmitting coil, main coupling coil.Master console generates control instruction data to be transmitted, for number
The level of word 0 and 1 composition, is transmitted in encoder, 2 two-way complementary phases difference difference 180 degrees of pulse signal 1 and pulse signal
Pwm signal is used and is wherein triggered all the way for encoder to control instruction data encoding, and coding principle is by the high electricity of pulse signal
Usually trigger encoder transmission 1bit control instruction data, encoder pass through in turn drive analog switch to high frequency sinusoidal carrier wave into
Row keying modulation, i.e. 1 lever selection sinusoidal carrier, 0 level cut off sinusoidal carrier；After analog switch conducting, high frequency load is realized
Wave loads signal transmitting coil, therefore the high-frequency carrier signal for carrying control instruction data is coupled in by signal transmitting coil
Power delivery channel.Pulse signal 1 and pulse signal 2 are the pwm signals for driving full bridge inverter, and full-bridge inverting realizes directly
Galvanic electricity source is by power supply square wave by the loading method that whole principle can be seen that signal to the conversion of high frequency square wave voltage
It is transmitted in the half period of voltage, it is assumed that sinusoidal carrier frequency f, power inverter working frequency are F, to be realized preferably
Mains half-wave take and required in high frequency carrier, sinusoidal carrier frequency f > 4F, in actual work, reverse frequency may be selected
100kHz or more may be selected in 10kHz, high frequent carrier frequency, is also not easy to select excessively high carrier wave, selects excessively high carrier frequency that will increase
Transmission loss of the plus signal on coil.The load relationship of high frequency carrier and high frequency inverter voltage is as shown in Fig. 2, high frequency carries
Wave is just to load 1 time in half of power inverter period of every mistake, and the message transmission rate of entire transmission plan is power inverter frequency
Half is F/2bit/s.
Field device mainly includes field electrical equipment, full bridge rectifier, power filter, signal receiving coil node
(may include multiple receiving units, receive coupling coil 1, receive coupling coil 2 ...), filtering and decoding unit etc..Wherein, live
The power supply and signal of equipment side control room in receiving from main coupling coil or potential device, intensity size is mainly by middle control
The transfer ratio of room transmittability, main coupling coil or potential device determines.Full-bridge rectification, power filter mainly complete high-frequency inversion
The rectification and pressure stabilizing of voltage, and then field electrical equipment is supplied, it receives coupling coil and mainly realizes from power delivery channel and return
It is coupled out fraction power supply and carrier voltage in road, is then demodulated by filtering, blocking, high frequency detection, the shaping processes such as relatively
The parsing and execution for recovering original control instruction data, and thering is field control equipment to realize order.
Built-in industrial control machine, embedded microprocessor etc. can be used in central control board；DC power supply is original power supply
Equipment, specific voltage value can be set according to field device；DDS digit chip, simulation can be used in high-frequency carrier generator
Circuit occurs for high-frequency signal；ADG419 etc. can be used in analog switch can be by the integrated chip of analog voltage signal；Coding
Device can be used similar to the programmable logic device such as FPGA, logic combination circuit etc., and pulse signal 1 triggers, encoder at this time into
The acquisition of row control instruction data, in fact, carrying out 0 or 1 data to control instruction data after encoder has pulse signal triggering
It acquires, after coding, driving analog selection switch；The parts selection design of full bridge inverter, full bridge rectifier needs foundation
Transimission power size is selected, which has mature design；Electric source filter circuit can be formed according to capacitor, inductance etc.
Filter circuit, related circuit design are more mature；Decoding circuit mainly will restore original signal, and detecting circuit+ratio can be used
It is decoded compared with circuit and reverts to digital signal, the process is similar with ASK decoding process in communication system；Main coupling coil with connect
Adjustment can be calculated by transmission voltage relationship by receiving qualified relation between coupling coil, it is desirable that receiving coil voltage V2 should be full
Sufficient > 0.8V, < 5V, the voltage range are to need to be able to satisfy scene according to the sets requirement of the main coupling coil of entire loop voltage-distributing
The power demands V1 of equipment voltage, but its voltage should meet number of nodes V1 > N*V2+2, to guarantee electric energy transmission and signal transmission
It is able to satisfy power supply and the decoded voltage requirements of signal.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. a kind of signal transmitting apparatus based on high frequency inverter transmission channel, which is characterized in that in Central Control Room including
Entreat console, DC power supply, high-frequency carrier generator, analog switch, encoder, full bridge inverter, signal transmitting coil and
Main coupling coil；The central control board connection encoder and full bridge inverter, for generating control instruction data to be transmitted
The pwm signal of 180 degree: the first pulse signal and the second pulse signal, the control to be transmitted is differed with two-way complementary phases difference
To encoder, first pulse signal and the second output of pulse signal are inverse to full-bridge for director data and the first output of pulse signal
Power transformation road；The encoder by analog switch connect high-frequency carrier generator, the analog switch connection signal transmitting coil,
The signal transmitting coil connection full bridge inverter and main coupling coil；
It in the field of equipment include full bridge rectifier, electric source filter circuit, several reception coupling coils and its one-to-one correspondence
The filtering of connection and decoding circuit；Described several receive coupling coil and are connected in series, and connect with the main coupling coil；Institute
The reception coupling coil connection full bridge rectifier of last bit is stated, the full bridge rectifier connects electric source filter circuit.
2. a kind of signal transmitting apparatus based on high frequency inverter transmission channel according to claim 1, feature exist
In the central control board uses built-in industrial control machine or embedded microprocessor.
3. a kind of signal transmitting apparatus based on high frequency inverter transmission channel according to claim 1, feature exist
In the supply voltage magnitude of the DC power supply is set according to field device.
4. a kind of signal transmitting apparatus based on high frequency inverter transmission channel according to claim 1, feature exist
In using DDS digit chip or analog high frequency circuit occurs for the high-frequency carrier generator.
5. a kind of signal transmitting apparatus based on high frequency inverter transmission channel according to claim 1, feature exist
In the analog switch uses the integrated chip of ADG419 analog voltage signal.
6. a kind of signal transmitting apparatus based on high frequency inverter transmission channel according to claim 1, feature exist
In the encoder is used for drive analog switch.
7. a kind of signal transmitting apparatus based on high frequency inverter transmission channel according to claim 1, feature exist
In the reception coupling coil voltage, which meets, to be greater than 0.8V and be less than 5V, and the main coupling coil voltage is greater than N* and receives coupling
Coil voltage+2, N are the number of nodes for receiving coupling coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821991969.XU CN209072487U (en) | 2018-11-29 | 2018-11-29 | A kind of signal transmitting apparatus based on high frequency inverter transmission channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821991969.XU CN209072487U (en) | 2018-11-29 | 2018-11-29 | A kind of signal transmitting apparatus based on high frequency inverter transmission channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209072487U true CN209072487U (en) | 2019-07-05 |
Family
ID=67100962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821991969.XU Expired - Fee Related CN209072487U (en) | 2018-11-29 | 2018-11-29 | A kind of signal transmitting apparatus based on high frequency inverter transmission channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209072487U (en) |
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2018
- 2018-11-29 CN CN201821991969.XU patent/CN209072487U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190705 |