Mobile carrier signal transmission system

Abstract

A mobile carrier signal transmission system disclosed by the present invention comprises a host, a mobile carrier, a wireless communication terminal and a plurality of intelligent communication nodes, the host is arranged at one end of a carrier use scene, the wireless communication terminal is arranged on the mobile carrier, and the carrier use scene comprises a plurality of communication areas arranged in sequence. The intelligent communication nodes are in one-to-one correspondence with the communication areas, the intelligent communication nodes are in wired communication connection with the host through 485 buses, and the wireless communication terminals are in wireless communication connection with the intelligent communication nodes. The mobile carrier signal transmission system provided by the invention establishes wireless transmission with the wireless communication terminal through the intelligent communication nodes, establishes limited transmission with the host through the 485 bus, and ensures that the same data packet is only transmitted once through time-sharing unvarnished transmission of the plurality of intelligent communication nodes, so that the situation that the occupation rate of the 485 bus is too high, and the transmission efficiency is high is avoided. The treatment efficiency is influenced.

Description

Technical Field

[0001] The present invention belongs to the technical field of signal transmission, and in particular relates to a mobile carrier signal transmission system. Background Art

[0002] Non-standard elevators that run along complex routes have always been widely and importantly used in the production and living fields. Different from ordinary linear guide elevators (including vertical elevators and escalators), its characteristic is that the equipment running trajectory must make curves and turns according to the actual environment, and it is used to transport personnel or valuable materials to some complex environments. This feature requires the use of wireless communication between the mobile carrier of the equipment and the main control for data transmission and communication, and this type of operating environment is often not conducive to wireless communication. Unstable communication will cause serious safety hazards and even endanger life safety. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a mobile carrier signal transmission system.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A mobile carrier signal transmission system, comprising a host, a mobile carrier, a wireless communication terminal and a plurality of intelligent communication nodes, wherein the host is arranged at one end of a carrier use scenario, the wireless communication terminal is arranged on the mobile carrier, the carrier use scenario comprises a plurality of communication areas arranged in sequence, the intelligent communication nodes correspond to the communication areas one by one, the intelligent communication nodes are connected to the host by wired communication via a 485 bus, and the wireless communication terminals are connected to the intelligent communication nodes by wireless communication;

[0006] The mobile carrier sends a valid air data packet through the wireless communication terminal, and receives the valid air data packet through the intelligent communication node. The intelligent communication node triggers the transparent transmission task to the 485 bus in sequence. When one of the intelligent communication nodes triggers the transparent transmission task, the remaining intelligent communication nodes end triggering the transparent transmission task.

[0007] Furthermore, the intelligent communication node includes a wireless communication module, a 485 communication module, a single-chip microcomputer and a power module. The wireless communication module, the 485 communication module and the single-chip microcomputer are all electrically connected to the power module, the 485 communication module is connected to the 485 bus, the 485 communication module is electrically connected to the single-chip microcomputer and establishes a communication connection, and the wireless communication module is electrically connected to the single-chip microcomputer and establishes a communication connection.

[0008] Furthermore, the 485 communication module is the CA-IS2092W chip of Shanghai Chuantu Microelectronics Co., Ltd., the wireless communication module is the HC-12 series wireless module of Guangzhou Huicheng Information Technology Co., Ltd., the single-chip computer is the STC8G1K08S2-SOP16 chip of Hangzhou Guoxin Technology Co., Ltd., and the power module is the B-XT-1WR3 series micro-chip DCDC power module of Guangzhou Jinshengyang Technology Co., Ltd.

[0009] Furthermore, the host uses the 485 bus and each of the intelligent communication nodes to complete wired networking through a daisy chain topology structure. Each of the intelligent communication nodes is sequentially configured with a node number, and each of the intelligent communication nodes performs a time-sharing transparent transmission task to the 485 bus according to its corresponding node number.

[0010] Furthermore, after receiving the valid air data packet sent by the wireless communication terminal, the intelligent communication node sends a transparent transmission task to the 485 bus within the time period corresponding to the node number, and monitors and compares the valid air data packets on the 485 bus outside the time period corresponding to the node number to determine whether the intelligent communication node corresponding to the node number with a higher sequence number has received the valid air data packet and sent it to the 485 bus;

[0011] When the intelligent communication node detects the existence of the same valid air data packet, the transparent transmission task of the corresponding intelligent communication node is terminated; when the intelligent communication node does not detect the existence of the same valid air data packet, the transparent transmission task of the corresponding intelligent communication node is triggered.

[0012] Furthermore, when the intelligent communication node does not trigger the transparent transmission task of the corresponding intelligent communication node, and the intelligent communication node corresponding to the node number with a lower sequence number detects the existence of the same valid air data packet, the transparent transmission task of the corresponding intelligent communication node will also be triggered.

[0013] A mobile carrier signal transmission system disclosed in the present invention has a beneficial effect compared with the prior art in that it divides the carrier use scenario into multiple connected communication areas, each communication area is provided with an intelligent communication node, wireless transmission is established with the wireless communication terminal through the intelligent communication node, and limited transmission is established with the host through the 485 bus, and multiple intelligent communication nodes are transparently transmitted through time-sharing to ensure that the same data packet is transmitted only once, thereby avoiding too high occupancy of the 485 bus and affecting the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a preferred embodiment provided by the present invention.

[0015] Figure 2 It is a schematic diagram of the structure of an intelligent communication node of a preferred embodiment provided by the present invention.

[0016] Figure 3 It is a communication schematic diagram of a preferred embodiment provided by the present invention. DETAILED DESCRIPTION

[0017] The present invention discloses a mobile carrier signal transmission system. The specific implementation of the present invention is further described below in conjunction with preferred embodiments.

[0018] See attached figure Figure 1-3 , Figure 1 is a schematic structural diagram of a preferred embodiment provided by the present invention, Figure 2 is a schematic diagram of the structure of an intelligent communication node in a preferred embodiment of the present invention. Figure 3 It is a communication schematic diagram of a preferred embodiment provided by the present invention.

[0019] Preferred embodiments.

[0020] This embodiment provides a mobile carrier signal transmission system, including a host, a mobile carrier, a wireless communication terminal and a plurality of intelligent communication nodes, wherein the host is arranged at one end of a carrier use scenario, the wireless communication terminal is arranged on the mobile carrier, the carrier use scenario includes a plurality of communication areas arranged in sequence, the intelligent communication nodes correspond to the communication areas one by one, the intelligent communication nodes are connected to the host by wired communication via a 485 bus, and the wireless communication terminals are connected to the intelligent communication nodes by wireless communication;

[0021] The mobile carrier sends a valid air data packet through the wireless communication terminal, and receives the valid air data packet through the intelligent communication node. The intelligent communication node triggers the transparent transmission task to the 485 bus in sequence. When one of the intelligent communication nodes triggers the transparent transmission task, the remaining intelligent communication nodes end triggering the transparent transmission task.

[0022] Furthermore, the intelligent communication node includes a wireless communication module, a 485 communication module, a single-chip microcomputer and a power module. The wireless communication module, the 485 communication module and the single-chip microcomputer are all electrically connected to the power module, the 485 communication module is connected to the 485 bus, the 485 communication module is electrically connected to the single-chip microcomputer and establishes a communication connection, and the wireless communication module is electrically connected to the single-chip microcomputer and establishes a communication connection.

[0023] Furthermore, the 485 communication module is the CA-IS2092W chip of Shanghai Chuantu Microelectronics Co., Ltd., the wireless communication module is the HC-12 series wireless module of Guangzhou Huicheng Information Technology Co., Ltd., the single-chip computer is the STC8G1K08S2-SOP16 chip of Hangzhou Guoxin Technology Co., Ltd., and the power module is the B-XT-1WR3 series micro-chip DCDC power module of Guangzhou Jinshengyang Technology Co., Ltd.

[0024] Furthermore, the host uses the 485 bus and each of the intelligent communication nodes to complete wired networking through a daisy chain topology structure. Each of the intelligent communication nodes is sequentially configured with a node number, and each of the intelligent communication nodes performs a time-sharing transparent transmission task to the 485 bus according to its corresponding node number.

[0025] Furthermore, after receiving the valid air data packet sent by the wireless communication terminal, the intelligent communication node sends a transparent transmission task to the 485 bus within the time period corresponding to the node number, and monitors and compares the valid air data packets on the 485 bus outside the time period corresponding to the node number to determine whether the intelligent communication node corresponding to the node number with a higher sequence number has received the valid air data packet and sent it to the 485 bus;

[0026] When the intelligent communication node detects the existence of the same valid air data packet, the transparent transmission task of the corresponding intelligent communication node is terminated; when the intelligent communication node does not detect the existence of the same valid air data packet, the transparent transmission task of the corresponding intelligent communication node is triggered.

[0027] Furthermore, when the intelligent communication node does not trigger the transparent transmission task of the corresponding intelligent communication node, and the intelligent communication node corresponding to the node number with a lower sequence number detects the existence of the same valid air data packet, the transparent transmission task of the corresponding intelligent communication node will also be triggered.

[0028] Working principle: Taking the stair lift as an example, it can transport disabled people or goods up and down the stairs, which can save manpower. The track path of the mobile carrier (i.e., the seat lift) is divided into multiple communication areas, each of which is provided with an intelligent communication node. The host is set at one end of the track path, and then the host uses the 485 bus to connect with each intelligent communication node through a daisy chain topology to complete wired networking.

[0029] The mobile carrier sends a valid air data packet through the wireless communication terminal, and the wireless communication node receives the valid air data packet through the wireless communication module. The single-chip microcomputer processes and sends the valid air data packet to the host in sequence according to the node number. The wireless communication node corresponding to each node number has a broadcast time of 30ms, and the wireless communication node corresponding to the next node number broadcasts every 30ms. For example, if the intelligent communication nodes corresponding to the node numbers 1, 2, and 3 receive a valid air data packet, the intelligent communication node corresponding to the node number 1 first sends a valid air data packet, and then after 30ms, the intelligent communication node corresponding to the node number 2 first sends a valid air data packet, and then after 30ms, the intelligent communication node corresponding to the node number 3 first sends a valid air data packet, thereby realizing time-sharing transparent transmission. In addition, during the transmission period of the node number 1, the intelligent communication nodes corresponding to the node numbers 1 and 2 monitor the valid air data packets on the 485 bus and compare them. When the same valid air data packets are detected, the transparent transmission task of the corresponding intelligent communication node is terminated. That is, it can ensure that only one communication node is needed to complete the transparent transmission task for a valid air data packet, avoiding the logical problem of multiple intelligent communication nodes sending valid air data packets at the same time, and avoiding the 485 bus occupancy rate being too high, which affects the processing efficiency of all terminals. Similarly, when the host sends a data packet to the wireless communication terminal, it is also through time-sharing transparent transmission to ensure that only one data packet is processed. Among them, the coverage area of ​​each intelligent communication node must be larger than the communication area to ensure the stability of communication.

[0030] It is worth mentioning that the technical features such as the host and mobile carrier involved in the patent application of this invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the inventive point of the patent of this invention. The patent of this invention will not be further elaborated.

[0031] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile carrier signal transmission system, characterized in that: It includes a host, a mobile carrier, a wireless communication terminal and several intelligent communication nodes, wherein the host is arranged at one end of the carrier use scenario, the wireless communication terminal is arranged on the mobile carrier, the carrier use scenario includes several communication areas arranged in sequence, the intelligent communication nodes correspond to the communication areas one by one, the intelligent communication nodes are connected to the host by wired communication through a 485 bus, and the wireless communication terminal is connected to the intelligent communication node by wireless communication; The mobile carrier sends a valid air data packet through the wireless communication terminal, and receives the valid air data packet through the intelligent communication node. The intelligent communication node triggers the transparent transmission task to the 485 bus in sequence. When one of the intelligent communication nodes triggers the transparent transmission task, the remaining intelligent communication nodes end triggering the transparent transmission task.

2. The mobile carrier signal transmission system according to claim 1, characterized in that: The intelligent communication node includes a wireless communication module, a 485 communication module, a single-chip microcomputer and a power module. The wireless communication module, the 485 communication module and the single-chip microcomputer are all electrically connected to the power module, the 485 communication module is connected to the 485 bus, the 485 communication module is electrically connected to the single-chip microcomputer and establishes a communication connection, and the wireless communication module is electrically connected to the single-chip microcomputer and establishes a communication connection.

3. The mobile carrier signal transmission system according to claim 2, characterized in that: The 485 communication module is the CA-IS2092W chip of Shanghai Chuantu Microelectronics Co., Ltd., the wireless communication module is the HC-12 series wireless module of Guangzhou Huicheng Information Technology Co., Ltd., the single-chip computer is the STC8G1K08S2-SOP16 chip of Hangzhou Guoxin Technology Co., Ltd., and the power module is the B-XT-1WR3 series micro-chip DCDC power module of Guangzhou Jinshengyang Technology Co., Ltd.

4. The mobile carrier signal transmission system according to claim 1, characterized in that: The host uses the 485 bus and each of the intelligent communication nodes to complete wired networking through a daisy chain topology structure. Each of the intelligent communication nodes is sequentially configured with a node number, and each of the intelligent communication nodes performs a time-sharing transparent transmission task to the 485 bus according to its corresponding node number.

5. The mobile carrier signal transmission system according to claim 4, characterized in that: After receiving the valid air data packet sent by the wireless communication terminal, the intelligent communication node sends a transparent transmission task to the 485 bus within the time period corresponding to the node number, and monitors the valid air data packet on the 485 bus outside the time period corresponding to the node number and compares it to determine whether the intelligent communication node corresponding to the node number with a higher sequence number has received the valid air data packet and sent it to the 485 bus; When the intelligent communication node detects the existence of the same valid air data packet, the transparent transmission task of the corresponding intelligent communication node is terminated; When the intelligent communication node does not detect the existence of the same valid air data packet, the transparent transmission task of the corresponding intelligent communication node is triggered.

6. The mobile carrier signal transmission system according to claim 5, characterized in that: When the intelligent communication node does not trigger the transparent transmission task of the corresponding intelligent communication node, and the intelligent communication node corresponding to the node number with a lower sequence number detects the existence of the same valid air data packet, the transparent transmission task of the corresponding intelligent communication node will also be triggered.

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