CN216959896U

CN216959896U - Big data bus transmission device of track traffic roadbed thing networking

Info

Publication number: CN216959896U
Application number: CN202123159996.5U
Authority: CN
Inventors: 王伟华; 徐凌雁; 王建; 张斌; 刘健; 王森; 魏广宁; 韦臻
Original assignee: Qingdao Zero One Dynamic Measurement Data Technology Co ltd; China Railway Design Corp
Current assignee: Qingdao Zero One Dynamic Measurement Data Technology Co ltd; China Railway Design Corp
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-07-12
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to a large data bus transmission device of an Internet of things of a track traffic road bed, which comprises a host, a backup module, a monitoring module and a slave, wherein the host comprises a first host CPU, a second host CPU, a signal switcher and a serial port chip, the first host CPU, the second host CPU and the signal switcher perform bidirectional data transmission, the signal switcher and the serial port chip perform bidirectional data transmission, the host is connected with a limited bus, and all the slave are connected through the bus, so that the wiring is convenient.

Description

Big data bus transmission device of track traffic roadbed thing networking

Technical Field

The utility model relates to the field of data transmission, in particular to a large data bus transmission device for an internet of things of a track traffic bed.

Background

In general transmission requirements of the internet of things, either the data size of single data transmission is relatively small (such as voltage, electric quantity, etc.), or a single-point unidirectional continuous transmission is adopted (such as vibration noise signal acquisition based on a wireless network, etc.), and there are some general or special communication protocols correspondingly, however, in some scenarios, a plurality of acquisition terminals (slaves) need to be arranged on a bus to reduce the number of channels of the master so as to control the cost, and meanwhile, the acquisition terminals need to give consideration to certain intelligent operation, instruction reception, state reply, etc. while data transmission is performed, the data size of the instruction and reply is considerably different from the length of a data packet to be transmitted, and the communication between the master and the slaves cannot cause instruction influence on other slaves (computers) on the bus, and orderly instruction reception can be maintained among the slaves on the same bus, The bus exception caused by simultaneous conversation at the same time can not occur.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a large data bus transmission device of the Internet of things of a track traffic bed, which is characterized by comprising a host, a backup module, a monitoring module and a slave, wherein the host comprises a first host CPU, a second host CPU, a signal switcher and a serial port chip, the first host CPU, the second host CPU and the signal switcher are in bidirectional data transmission, the signal switcher is in bidirectional data transmission, the slave comprises a first sensor, a second sensor, a first filter, a second filter, a third filter, a signal selector, a slave CPU and a serial port chip, the output ends of the first sensor and the second sensor are respectively connected with the input end of the signal selector through the first filter and the second filter, the output end of the signal selector is connected with the input end of the third filter, and the output end of the third filter is connected with the input end of the slave CPU, the CPU of the slave computer and the serial port chip are in bidirectional data transmission, and the host computer and the slave computer are connected with the monitoring module through the backup module.

Preferably, the serial port chip of the host computer and the serial port chip of the slave computer are connected with the monitoring module through the backup module.

Further, the backup module is a data storage, and the monitoring module is a threshold detector.

Preferably, the first sensor and the second sensor collect vibration and noise signals.

Compared with the closest prior art, the utility model has the following beneficial effects:

the host computer is connected with a limited bus, all the slave computers are connected through the bus, wiring is convenient, a traditional bus transmission protocol adopts a fixed length instruction mode, the bus transmission protocol is suitable for transmitting low-frequency and small data, unequal length commands and replies can be realized, meanwhile, the transmission speed higher than 115200bps can be supported, the high-speed Internet of things acquisition requirement is supported, and meanwhile, the long-distance transmission advantage of serial ports such as RS485 and the like can be exerted.

Drawings

Fig. 1 is a schematic diagram of a large data bus transmission device of the internet of things of a track traffic bed provided by the utility model;

fig. 2 is a schematic diagram of a host of a large data bus transmission device of the internet of things of a rail transit bed provided by the utility model;

fig. 3 is a schematic diagram of a slave machine of the large data bus transmission device of the rail transit bed internet of things provided by the utility model.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1:

the utility model provides a large data bus transmission device of an internet of things of a track traffic road bed, which is characterized by comprising a host, a backup module, a monitoring module and a slave, wherein the host comprises a first host CPU, a second host CPU, a signal switcher and a serial port chip, the first host CPU, the second host CPU and the signal switcher are in bidirectional data transmission, the signal switcher is in bidirectional data transmission, the slave comprises a first sensor, a second sensor, a first filter, a second filter, a third filter, a signal selector, a slave CPU and a serial port chip, the output ends of the first sensor and the second sensor are respectively connected to the input end of the signal selector through the first filter and the second filter, the output end of the signal selector is connected with the input end of the third filter, the output end of the third filter is connected with the input end of the slave CPU, the host and the slave are connected with the monitoring module through the backup module, the serial port chip of the host and the serial port chip of the slave are connected with the monitoring module through the backup module, the backup module is a data storage, the monitoring module is a threshold detector, and the first sensor and the second sensor collect vibration and noise signals.

The working process of the embodiment includes that the host sends an instruction to the backup module through the first host CPU through the serial port chip, the backup module copies and stores the instruction and then sends the instruction to the slave, when the slave receives the instruction, data collected by the first sensor and the second sensor of the slave are filtered through the first filter and the second filter respectively, the data are filtered through the signal selector, the sensor data are sent to the monitoring module through the serial port chip through the third filter, the monitoring module detects the threshold value set by the threshold value detector, sends the sensor data to the backup module, copies and stores the sensor data and then sends the sensor data to the host, and when the first CPU of the host breaks down, the signal switcher switches the second CPU to send the instruction.

While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The large data bus transmission device of the Internet of things of the rail transit road bed is characterized by comprising a host, a backup module, a monitoring module and a slave, wherein the host comprises a first host CPU, a second host CPU, a signal switcher and a serial port chip, the first host CPU, the second host CPU and the signal switcher perform bidirectional data transmission, the signal switcher performs bidirectional data transmission, the slave comprises a first sensor, a second sensor, a first filter, a second filter, a third filter, a signal selector, a slave CPU and a serial port chip, the output ends of the first sensor and the second sensor are respectively connected with the input end of the signal selector through the first filter and the second filter, the output end of the signal selector is connected with the input end of the third filter, and the output end of the third filter is connected with the input end of the slave CPU, the CPU of the slave computer and the serial port chip are in bidirectional data transmission, and the host computer and the slave computer are connected with the monitoring module through the backup module.

2. The track traffic bed internet of things big data bus transmission device as claimed in claim 1, wherein the serial port chip of the host computer and the serial port chip of the slave computer are connected with the monitoring module through a backup module.

3. The Internet of things big data bus transmission device of the rail transit road bed as claimed in claim 2, wherein the backup module is a data storage device, and the monitoring module is a threshold detector.

4. The transmission device of the Internet of things big data bus of the rail transit road bed as claimed in claim 1, wherein the first sensor and the second sensor collect vibration and noise signals.