CN203288072U - Physical heritage monitoring system - Google Patents
Physical heritage monitoring system Download PDFInfo
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- CN203288072U CN203288072U CN2013203404811U CN201320340481U CN203288072U CN 203288072 U CN203288072 U CN 203288072U CN 2013203404811 U CN2013203404811 U CN 2013203404811U CN 201320340481 U CN201320340481 U CN 201320340481U CN 203288072 U CN203288072 U CN 203288072U
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- digital signal
- monitoring system
- carrier wave
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Abstract
The utility model provides a physical heritage monitoring system. The physical heritage monitoring system comprises a communication terminal, a power supply device, and a monitoring terminal electrically connected with the power supply device through a power line. The physical heritage monitoring system further comprises a carrier loading device and a carrier receiving device. The carrier loading device receives digital signals sent by the communication terminal, so that the digital signals are encrypted, converted into carrier signals and then loaded in the power line. The carrier receiving device receives the carrier signals, so that the carrier signals are converted into the digital signals, decrypted and then output to the monitoring terminal. The physical heritage monitoring system has the advantages that just the power line needs to be arranged between a control terminal and the monitoring terminal so that the double effect of data transmission and power supply can be achieved, wiring is little, and the wiring efficiency is high.
Description
Technical field
The utility model relates to a kind of physical legacy monitoring system.
Background technology
Current physical legacy monitoring system, as shown in Figure 1, generally comprise the communication terminal 1 and the power-supply unit 2 that are arranged at control end, and with the long-range monitoring terminal that is connected 3 of described control end.
Existing, between described communication terminal 1 and described monitoring terminal 3, use at large rs 232 serial interface signal line 4 to carry out interactive communication.This makes between control end and monitoring terminal 3, must arrange rs 232 serial interface signal line 4 and line of electric force 5, just can make monitoring terminal 3 normal operations, and wiring quantity is more.
Summary of the invention
The purpose of this utility model is to provide a kind of physical legacy monitoring system, and it realizes interactive communication between communication terminal and monitoring terminal having reduced the wiring quantity between control end and watch-dog by line of electric force.
One of for achieving the above object, the utility model provides a kind of physical legacy monitoring system, and it comprises: communication terminal, power-supply unit, and the monitoring terminal that is electrically connected by line of electric force with described power-supply unit, wherein,
Described physical legacy monitoring system also comprises:
The carrier wave charger, described carrier wave charger receives the digital signal that described communication terminal sends, and, with after described digital signal is encrypted and being converted to carrier signal, loads in described line of electric force;
The carrier wave receiving trap, described carrier wave receiving trap receives described carrier signal, after described carrier signal being converted to digital signal and deciphering, exports described monitoring terminal to.
As further improvement of the utility model, described communication terminal and described carrier wave charger are electrically connected by serial ports.
As further improvement of the utility model, described monitoring terminal and described carrier wave receiving trap are electrically connected by serial ports.
As further improvement of the utility model, described carrier wave charger comprises:
Level switch module, described level switch module and described communication terminal are electrically connected by serial ports, to receive described digital signal, and described digital signal is carried out step-down process.
As further improvement of the utility model, described digital signal step-down is Transistor-Transistor Logic level.
As further improvement of the utility model, described carrier wave charger comprises:
Encrypting module, described encrypting module is encrypted described digital signal.
As further improvement of the utility model, described carrier wave charger comprises:
Encrypting module, described encrypting module is electrically connected described level switch module, with the digital signal after the step-down to described level switch module output, is encrypted.
As further improvement of the utility model, described carrier wave charger comprises:
Modulation module, described modulation module and described encrypting module are electrically connected, and with the digital signal after the encryption that receives described encrypting module output, and the digital signal after encrypting is converted to carrier signal, loads in described line of electric force.
As further improvement of the utility model, described carrier signal is the BPSK carrier signal.
As further improvement of the utility model, described physical legacy monitoring system comprises:
With the wave filter that described power-supply unit is electrically connected, described wave filter is arranged between described power-supply unit and described carrier wave charger.
Compared to prior art, the beneficial effects of the utility model are: only need to arrange line of electric force between control end and monitoring terminal, can realize the double effects of data transmission and power supply, wiring is few, and wiring efficiency is higher.
Description of drawings
Fig. 1 is existing industrial system wiring schematic diagram.
Fig. 2 is the system schematic of physical legacy monitoring system in the utility model one embodiment.
Fig. 3 is the module diagram of carrier wave charger in the utility model one embodiment.
Fig. 4 is the module diagram of carrier wave receiving trap in the utility model one embodiment.
Fig. 5 inputs or outputs the digital signal schematic diagram of modulation module in the utility model one embodiment.
Fig. 6 exports or inputs the carrier signal schematic diagram of modulation module in the utility model one embodiment.
Embodiment
Below with reference to each embodiment shown in the drawings, the utility model is described in detail.But these embodiments do not limit the utility model.Therefore, structure or the conversion on function made according to these embodiments of those of ordinary skill in the art all is included in protection domain of the present utility model.
As shown in Figure 2, the physical legacy monitoring system of the utility model one embodiment comprises communication terminal 10, power-supply unit 20, and with described power-supply unit 20, passes through the monitoring terminal 30 that line of electric force 60 is electrically connected.Usually, this communication terminal 10 and this power-supply unit 20 are to be arranged at control end.This monitoring terminal 30 is to be arranged at working end.For example, this communication terminal 10 and this power-supply unit 20 are arranged on a unified administrative center, and this monitoring terminal 30 is arranged in physical legacy.
, by this communicating terminal 10, can remotely operate/set described monitoring terminal 30.By this power-supply unit 20, can be to described monitoring terminal 30 power supplies.
This physical legacy monitoring system also comprises: carrier wave charger 40 and carrier wave receiving trap 50.Preferably, this is connected to the line of electric force of power-supply unit 20 and monitoring terminal 30, through described carrier wave charger 40 and carrier wave receiving trap 50, and is described carrier wave charger 40 and 50 power supplies of carrier wave receiving trap.
In the utility model one embodiment, described carrier wave charger 40 is electrically connected by the rs 232 serial interface signal line with described communication terminal 10.Normally, be provided with serial ports on described carrier wave charger 40 and described communication terminal 10, described rs 232 serial interface signal line is connected on the serial ports of described carrier wave charger 40 and described communication terminal 10.By the described carrier wave charger 40 of described rs 232 serial interface signal alignment, to send digital signal.
Described carrier wave charger 40 receives the digital signal that described communication terminals 10 send, and, with after described digital signal is encrypted and being converted to carrier signal, loads in described line of electric force 60.
As shown in Figure 3, in the utility model one embodiment, described carrier wave charger 40 comprises level switch module 401, encrypting module 402, and modulation module 403.
Described level switch module 401 is the MAX232 chip.Described MAX232 chip is electrically connected the serial ports on described carrier wave charger 40.And receive the digital signal that this serial ports sends.Usually, the digital signal that sends from serial ports for-15v ~-3v represents 1.+ 3v ~+15v represents 0.This level switch module 401 can carry out this digital signal step-down to be processed, and will be Transistor-Transistor Logic level by the digital signal step-down of serial ports input:〉2.4v represents 1,＜0.4v represents 0.To adapt to the voltage requirements of encrypting module 402.
Described level switch module 401 is electrically connected described encrypting module.And after described level switch module is to described digital signal step-down, the digital signal after described step-down is sent to encrypting module 402.
In the utility model one embodiment, described encrypting module 402 is the AVR single-chip microcomputer.This AVR single-chip microcomputer is encrypted this digital signal after receiving digital signal after described level switch module 401 step-downs.
Usually, after the digital signal of described AVR single-chip microcomputer after receiving described level switch module 401 step-downs, the encryption key in first read memory, and by the AES encipheror, this digital signal is encrypted, and the digital signal after the output encryption.Described AES encipheror and encryption method, be the common practise that those of ordinary skills grasp, and do not repeat them here.
In the utility model one embodiment, described modulation module 403 is the PLT-22 chip.Described modulation module 403 is electrically connected with described encrypting module 402, with the digital signal after the encryption that receives described encrypting module 402 outputs.
Described modulation module 403 after receiving digital signal, can use BPSK that digital signal modulated is carrier signal, and loads in described line of electric force 60.As shown in Figure 5, the digital signal after encryption is binary digital signal.Described modulation module 403 receives this binary digital signal, and is converted into the BPSK carrier signal, as shown in Figure 6, loads on transmission in line of electric force 60.
It is worth mentioning that: in another embodiment of the present utility model, described encrypting module 402 can be selected the single-chip microcomputer of the digital signal that adapts to the serial ports transmission.So, described carrier wave charger 40 also can not need to arrange level switch module 401, and the digital signal that serial ports is sent is converted to Transistor-Transistor Logic level.And directly described encrypting module 402 is electrically connected on the serial ports of carrier wave charger 40, receive the digital signal that described serial ports sends.
In the utility model one embodiment, described carrier wave receiving trap 50 is electrically connected by the rs 232 serial interface signal line with described monitoring terminal 30.Normally,, be provided with serial ports on described carrier wave receiving trap 50 and described monitoring terminal 30, described rs 232 serial interface signal line is connected on the serial ports of described carrier wave receiving trap 50 and described monitoring terminal 30., with by described rs 232 serial interface signal line, by described carrier wave receiving trap 50, to described monitoring terminal 30, send digital signal.
Described carrier wave receiving trap 50 receives the carrier signal that described line of electric force 60 transmits, and after described carrier signal being converted to digital signal and deciphering, exports described monitoring terminal 30 to.
So, can make line of electric force not only can be monitoring terminal 30 power supplies, also communication/the control signal of described communication terminal 10 can be sent to described monitor terminal 30.
As shown in Figure 4, in the utility model one embodiment, described carrier wave receiving trap 50 comprises modulation module 501, deciphering module 502, and level switch module 503.
Preferably, described modulation module 501 can be the PLT-22 chip.Described modulation module 501 is electrically connected with described line of electric force 60, to receive the carrier signal of described line of electric force 60 inputs.As described above, described carrier signal is the BPSK carrier signal.
Described modulation module 501 after receiving described carrier signal, can use BPSK that this carrier signal is modulated to digital signal.It is to using BPSK with the reverse engineering of digital signal modulated as carrier signal by modulation module 401 in carrier wave charger 40.As shown in Figure 6, this BPSK carrier signal after described modulation module 501, may be modulated as binary digital signal, as shown in Figure 5.
In the utility model one embodiment, described deciphering module 502 is the AVR single-chip microcomputer.This AVR single-chip microcomputer is electrically connected described modulation module 501.This deciphering module 502 is decrypted this digital signal after receiving the digital signal of described modulation module 501 transmissions.
Usually, described AVR single-chip microcomputer after the digital signal that receives described modulation module 501 demodulation, the decruption key in first read memory, and by the AES decrypted program, this digital signal being decrypted.Described AES decrypted program and decryption method, be the common practise that those of ordinary skills grasp, and do not repeat them here.The decrypting process of described deciphering module 501 is namely to passing through the reverse engineering of encrypting module 402 in carrier wave charger 40.
Described level switch module 503 is the MAX232 chip.Described MAX232 chip and described deciphering module 502 are electrically connected.Described MAX232 chip also is electrically connected the serial ports on described carrier wave receiving trap 50.And by described serial ports, to described monitoring terminal 30, send digital signal.
Described level switch module 503 after the digital signal that receives described deciphering module 502 transmission, can carry out pressurized treatment with this digital signal, to adapt to the demand of serial ports.Usually, the digital signal of this deciphering module 502 outputs is Transistor-Transistor Logic level:〉2.4v represents 1,＜0.4v represents 0.Through described level switch module 503 be treated to-15v ~-3v represents 1.+ 3v ~+15v represents 0, and to described serial ports output.
Described serial ports inputs to described digital signal in the serial ports of described monitoring terminal 30 by the rs 232 serial interface signal line after receiving the digital signal of level switch module 503 outputs.To complete communicating by letter of communication terminal 10 and described monitor terminal 30.
It is worth mentioning that: in another embodiment of the present utility model, described encrypting module 502 can be selected the single-chip microcomputer of the digital signal that adapts to the serial ports transmission.So, described carrier wave receiving trap 50 also can not need to arrange level switch module 501, Transistor-Transistor Logic level is converted to the level that adapts to serial ports.And directly described encrypting module 502 is electrically connected on the serial ports of carrier wave receiving trap 50, send digital signal to described serial ports.
In sum, physical legacy monitoring system of the present utility model only needs to arrange line of electric force between control end and monitoring terminal, can realize the double effects of data transmission and power supply, connects up few, and wiring efficiency is higher.
In addition, the utility model has also solved in prior art, by the short technical matters of transmitting distance of rs 232 serial interface signal line the transmission of data between communication terminal and monitoring terminal.
Usually, using the communication distance that serial ports can transmitting is 15 meters, yet by the application's line of electric force transmission, the transmitting distance is 100 meters, has increased greatly the transmitting distance between communication terminal and monitoring terminal.
Preferably, the physical legacy monitoring system of the utility model one embodiment also comprises the wave filter that is electrically connected with described power-supply unit, and described wave filter is arranged between described power-supply unit and described carrier wave charger.Like this, can filter clutter and noise in line of electric force, promote further laser propagation effect and the transmission range of carrier signal.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the situation that do not deviate from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, therefore is intended to include in the utility model dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limit related claim.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should make instructions as a whole, and the technical scheme in each embodiment also can, through appropriate combination, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (10)
1. a physical legacy monitoring system, comprise communication terminal, power-supply unit, and with described power-supply unit by the monitoring terminal that line of electric force is electrically connected, it is characterized in that,
Described physical legacy monitoring system also comprises:
The carrier wave charger, described carrier wave charger receives the digital signal that described communication terminal sends, and, with after described digital signal is encrypted and being converted to carrier signal, loads in described line of electric force;
The carrier wave receiving trap, described carrier wave receiving trap receives described carrier signal, after described carrier signal being converted to digital signal and deciphering, exports described monitoring terminal to.
2. physical legacy monitoring system according to claim 1, is characterized in that, described communication terminal and described carrier wave charger are electrically connected by the rs 232 serial interface signal line.
3. physical legacy monitoring system according to claim 1, is characterized in that, described monitoring terminal and described carrier wave receiving trap are electrically connected by the rs 232 serial interface signal line.
4. physical legacy monitoring system according to claim 3, is characterized in that, described carrier wave charger comprises:
Level switch module, described level switch module and described communication terminal are electrically connected by serial ports, to receive described digital signal, and described digital signal is carried out step-down process.
5. physical legacy monitoring system according to claim 4, is characterized in that, described digital signal step-down is Transistor-Transistor Logic level.
6. physical legacy monitoring system according to claim 2, is characterized in that, described carrier wave charger comprises:
Encrypting module, described encrypting module is encrypted described digital signal.
7. physical legacy monitoring system according to claim 4, is characterized in that, described carrier wave charger comprises:
Encrypting module, described encrypting module is electrically connected described level switch module, with the digital signal after the step-down to described level switch module output, is encrypted.
8. according to claim 6 or 7 described physical legacy monitoring systems, is characterized in that, described carrier wave charger comprises:
Modulation module, described modulation module and described encrypting module are electrically connected, and with the digital signal after the encryption that receives described encrypting module output, and the digital signal after encrypting is converted to carrier signal, loads in described line of electric force.
9. physical legacy monitoring system according to claim 8, is characterized in that, described carrier signal is the BPSK carrier signal.
10. physical legacy monitoring system according to claim 1, is characterized in that, described physical legacy monitoring system comprises:
With the wave filter that described power-supply unit is electrically connected, described wave filter is arranged between described power-supply unit and described carrier wave charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203404811U CN203288072U (en) | 2013-06-14 | 2013-06-14 | Physical heritage monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203404811U CN203288072U (en) | 2013-06-14 | 2013-06-14 | Physical heritage monitoring system |
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| CN203288072U true CN203288072U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203404811U Expired - Lifetime CN203288072U (en) | 2013-06-14 | 2013-06-14 | Physical heritage monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345835A (en) * | 2013-06-14 | 2013-10-09 | 江苏瀚远科技股份有限公司 | Physical heritage monitoring system |
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2013
- 2013-06-14 CN CN2013203404811U patent/CN203288072U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345835A (en) * | 2013-06-14 | 2013-10-09 | 江苏瀚远科技股份有限公司 | Physical heritage monitoring system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |
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| CX01 | Expiry of patent term |