Communication data line for collecting guideway surface data
By using capacitor isolators and microswitches for signal isolation and protection in communication data lines, the problem of unstable data transmission in complex electromagnetic environments is solved, and the stability and security of high-precision data acquisition are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江八达电子仪表有限公司
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing communication data lines are susceptible to interference in complex electromagnetic environments, leading to data transmission errors or equipment damage, and thus failing to meet the requirements for high-precision data acquisition.
A capacitor isolator is used to isolate the first conversion unit and the second conversion unit. A stepped protocol conversion is used and the capacitor isolator is used to isolate interference components in the transmitted signal. At the same time, microswitches and interface protection devices are used for dual protection.
It improves the signal quality and stability of data transmission, reduces hardware requirements, enhances anti-interference capabilities and data acquisition reliability, and avoids equipment damage.
Smart Images
Figure CN224520365U_ABST
Abstract
Claims
1. A communication data line for rail surface data acquisition, characterized by: include: A first interface module for connecting to a user terminal, a second interface module for connecting to a guide rail meter, and a conversion module connecting the first interface module and the second interface module. The conversion module includes at least a capacitor isolator, a first conversion unit, and a second conversion unit. The first conversion unit is connected to the first interface module, the capacitor isolator is connected between the first conversion unit and the second conversion unit, and the second conversion unit is connected to the second interface module.
2. The communication data cable for data acquisition of a guide rail meter as described in claim 1, characterized in that: The first interface module includes a USB communication interface and a USB communication cable, and the second interface module includes an RS485 communication interface and an RS485 communication cable.
3. The communication data cable for data acquisition of a guide rail meter as described in claim 1, characterized in that: The first conversion unit is used for USB to UART protocol conversion, and the second conversion unit is used for UART to RS485 protocol conversion.
4. The communication data cable for data acquisition of a guide rail meter as described in claim 1, characterized in that: The conversion module also includes an interface protection device, which is connected between the second conversion unit and the second interface module.
5. The communication data cable for data acquisition of a guide rail meter as described in claim 1, characterized in that: The second interface module includes several second interfaces, and the conversion module includes several conversion combinations. Each conversion combination includes a capacitor isolator and a second conversion unit. The second interfaces correspond one-to-one with the conversion combinations.
6. The communication data cable for data acquisition of a guide rail meter as described in claim 5, characterized in that: The conversion assembly also includes an interface protection device connected between the second conversion unit and the second interface.
7. A communication data cable for data acquisition of a guide rail meter as described in claim 4 or 6, characterized in that: The interface protection device includes any one or combination of TVS diode, gas discharge tube, ESD protection diode, fuse, and common mode choke.
8. The communication data line for collecting rail surface data according to claim 1, wherein: Also includes: The protection module includes a first protection circuit connected between the first conversion unit and the first interface module, and a second protection circuit connected between the second conversion unit and the second interface module. The first protection circuit includes at least a first micro switch that operates in response to the access action of the first interface module, and the second protection circuit includes at least a second micro switch that operates in response to the access action of the second interface module.
9. The communication data cable for data acquisition of a guide rail meter as described in claim 8, characterized in that: The first micro switch and the second micro switch are normally open micro switches.
10. The communication data cable for data acquisition of a guide rail meter as described in claim 9, characterized in that: The first protection circuit includes a first micro switch and a first interface protection device, and the second protection circuit includes a second micro switch and a second interface protection device. The first interface protection device is connected to the first micro switch and the first conversion unit, and the second interface protection device is connected to the second micro switch and the second conversion unit.