CN214315266U - Carrier communication system for calibration system - Google Patents
Carrier communication system for calibration system Download PDFInfo
- Publication number
- CN214315266U CN214315266U CN202120550767.7U CN202120550767U CN214315266U CN 214315266 U CN214315266 U CN 214315266U CN 202120550767 U CN202120550767 U CN 202120550767U CN 214315266 U CN214315266 U CN 214315266U
- Authority
- CN
- China
- Prior art keywords
- signal converter
- instrument
- input module
- power supply
- carrier communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Communication Control (AREA)
Abstract
The utility model discloses a carrier communication system for calibration system. It includes instrument, signal converter and demonstration input module, the instrument pass through the power supply line and be connected with signal converter, signal converter and demonstration input module be connected, the instrument in be equipped with modem circuit, the instrument pass through modem circuit and be connected with signal converter. The utility model has the advantages that: the debugging line is not needed, the operation is simple and convenient, the complex wiring is avoided, the efficiency is high, and the labor cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the relevant technique of carrier communication and specifically relates to indicate a carrier communication system for calibration system.
Background
When the existing instrument is used for calibrating the pressure tool, the existing instrument is generally operated through a key or provided with an independent communication line, the key operation process is complicated, the calibration time is long, the efficiency is low, the existing instrument is provided with the independent communication line, the existing instrument is not required to be used after calibration, and the follow-up processing occupies time.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome and to have above-mentioned not enough among the prior art, provide a reduce cost of labor's carrier communication system for calibration system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a carrier communication system for a calibration system comprises an instrument, a signal converter and a display input module, wherein the instrument is connected with the signal converter through a power supply line, the signal converter is connected with the display input module, a modulation and demodulation circuit is arranged in the instrument, and the instrument is connected with the signal converter through the modulation and demodulation circuit.
The display input module has the functions of displaying, inputting and communicating, and is used for reading and writing parameters through the communication of the signal converter and the instrument to finish calibration. And the signal conversion module is responsible for converting the signals into modulated signals, and a modulation and demodulation circuit is additionally arranged in the instrument and is superposed on a power supply line of the instrument. The design just need not debug the line like this, and easy operation is convenient, avoids complicated wiring, and is efficient, reduces the cost of labor.
Preferably, the display input module is a hand operator, a PC computer or a configuration screen. Through the different options, the display, input and communication operations can be performed, and the transmission of carrier communication is facilitated.
Preferably, the display input module is connected with the signal converter through an RS232 communication interface. By selecting the communication interface, the reliability of information communication can be ensured.
As another preferred mode, the display input module is connected with the signal converter through an RS485 communication interface. By selecting the communication interface, the reliability of information communication can be ensured.
Preferably, a power supply circuit is arranged in the meter, the modulation and demodulation circuit is connected with the power supply circuit, and the power supply circuit is connected with the signal converter through the modulation and demodulation circuit. The carrier signal can be superposed on the power supply circuit by matching the power supply circuit with the modulation and demodulation circuit, so that a communication line does not need to be used independently.
The utility model has the advantages that: the debugging line is not needed, the operation is simple and convenient, the complex wiring is avoided, the efficiency is high, and the labor cost is reduced.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
fig. 2 is a circuit schematic of the modem circuit.
In the figure: 1. the instrument comprises an instrument body, 2 a signal converter, 3 a display input module, 4 a power supply circuit and 5 a modulation and demodulation circuit.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
In the embodiment shown in fig. 1, a carrier communication system for a calibration system includes an instrument 1, a signal converter 2, and a display input module 3, where the instrument 1 is connected to the signal converter 2 through a power supply line, the signal converter 2 is connected to the display input module 3, a modulation/demodulation circuit 5 is provided in the instrument 1, and the instrument 1 is connected to the signal converter 2 through the modulation/demodulation circuit 5. The display input module 3 is a hand operator, a PC computer or a configuration screen. The display input module 3 is connected with the signal converter 2 through an RS232 communication interface. Or, the display input module 3 is connected with the signal converter 2 through an RS485 communication interface. A power supply circuit 4 is arranged in the instrument 1, the modulation and demodulation circuit 5 is connected with the power supply circuit 4, and the power supply circuit 4 is connected with the signal converter 2 through the modulation and demodulation circuit 5.
As shown in fig. 2, the modulation and demodulation circuit 5 of the meter 1 is provided, the C3 capacitor is used for blocking direct current and alternating current, the modulation signal is an alternating signal and can be transmitted through the C3, the R2 is a matching resistor, and the D3 plays a role of overvoltage protection.
The display input module 3 can be similar to a manual operator, a PC (personal computer) or a configuration screen, has the functions of displaying, inputting and communicating, and is communicated with the instrument 1 through the signal converter 2 to read and write parameters so as to finish calibration. The signal converter 2 is responsible for converting signals, signals of the RS232 communication interface or signals of the RS485 communication interface are converted into modulation signals, the modulation and demodulation circuit 5 is additionally arranged inside the instrument 1 through matching of a resistor and a capacitor, the modulation and demodulation circuit is superposed on the power supply circuit 4 of the instrument 1, the problem of multiple wiring is solved, a special debugging line is not needed, and therefore complex wiring is avoided.
Claims (5)
1. A carrier communication system for a calibration system is characterized by comprising an instrument (1), a signal converter (2) and a display input module (3), wherein the instrument (1) is connected with the signal converter (2) through a power supply line, the signal converter (2) is connected with the display input module (3), a modulation and demodulation circuit (5) is arranged in the instrument (1), and the instrument (1) is connected with the signal converter (2) through the modulation and demodulation circuit (5).
2. The carrier communication system for the calibration system as claimed in claim 1, wherein the display input module (3) is a hand operator, a PC computer or a configuration screen.
3. A carrier communication system for a calibration system according to claim 1 or 2, wherein the display input module (3) is connected to the signal converter (2) via an RS232 communication interface.
4. A carrier communication system for a calibration system according to claim 1 or 2, wherein the display input module (3) is connected to the signal converter (2) via an RS485 communication interface.
5. A carrier communication system for a calibration system according to claim 1 or 2, wherein a power supply circuit (4) is provided in the meter (1), the modem circuit (5) is connected to the power supply circuit (4), and the power supply circuit (4) is connected to the signal converter (2) through the modem circuit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120550767.7U CN214315266U (en) | 2021-03-17 | 2021-03-17 | Carrier communication system for calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120550767.7U CN214315266U (en) | 2021-03-17 | 2021-03-17 | Carrier communication system for calibration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214315266U true CN214315266U (en) | 2021-09-28 |
Family
ID=77836774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120550767.7U Expired - Fee Related CN214315266U (en) | 2021-03-17 | 2021-03-17 | Carrier communication system for calibration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214315266U (en) |
-
2021
- 2021-03-17 CN CN202120550767.7U patent/CN214315266U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201765477U (en) | Pressure monitoring system with soft switching machine | |
| CN214315266U (en) | Carrier communication system for calibration system | |
| CN201765279U (en) | TFT-LCD display-based electric power quality analysis meter | |
| CN104598943B (en) | Transponder reading-writing method and device | |
| CN215813784U (en) | IO-Link digital display pressure switch | |
| CN201812002U (en) | Testing device for radio frequency remote controller | |
| CN207910775U (en) | The multi-functional copy controller of multi-communication mode | |
| CN104198871A (en) | Electronic device tester and testing method thereof | |
| CN209103124U (en) | A kind of digital display unit of collection in worksite signal | |
| CN206726010U (en) | A kind of Bluetooth function test equipment | |
| CN204206213U (en) | A kind of HART communication modem that ring current is provided | |
| CN107271889A (en) | A kind of remote control test board electrifying device | |
| CN204302969U (en) | The USB/RS232-CAN translation debugging device of various configurations mode | |
| CN107121582A (en) | One kind coordinates bluetooth module movement oscillograph based on smart mobile phone APP | |
| CN215642323U (en) | Sensor communication circuit | |
| CN206930770U (en) | A kind of multiple-in-one Universal debugging equipment | |
| CN111026620A (en) | Data visualization Processing system and method based on Processing | |
| CN212931511U (en) | Intelligent monitoring device | |
| CN203025700U (en) | Intelligent HART (Highway Addressable Remote Transducer) converter | |
| CN216981910U (en) | CAN communication transceiver | |
| CN205490607U (en) | High -speed code error tester | |
| CN204406447U (en) | A kind of transponder read and write device | |
| CN212060366U (en) | Current signal source with HART communication function | |
| CN207730826U (en) | Current transducer | |
| CN204537139U (en) | A kind of portable RFID card reader based on blue tooth interface and attendance checking system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210928 |