CN218995912U - Frequency converter - Google Patents

Frequency converter Download PDF

Info

Publication number
CN218995912U
CN218995912U CN202222622362.7U CN202222622362U CN218995912U CN 218995912 U CN218995912 U CN 218995912U CN 202222622362 U CN202222622362 U CN 202222622362U CN 218995912 U CN218995912 U CN 218995912U
Authority
CN
China
Prior art keywords
module
communication
control
communication module
main control
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.)
Active
Application number
CN202222622362.7U
Other languages
Chinese (zh)
Inventor
兰锦亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha Yingweiteng Electric Technology Co ltd
Original Assignee
Changsha Yingweiteng Electric Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changsha Yingweiteng Electric Technology Co ltd filed Critical Changsha Yingweiteng Electric Technology Co ltd
Priority to CN202222622362.7U priority Critical patent/CN218995912U/en
Application granted granted Critical
Publication of CN218995912U publication Critical patent/CN218995912U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The utility model provides a frequency converter, which is applied to a climbing-free device control system, wherein the frequency converter comprises a control board, the control board comprises a control device for the climbing-free device control system, the control device is arranged on control equipment of the climbing-free device control system, and the control device comprises: the control box control module comprises a first main control module and a first communication module, wherein the first main control module is electrically connected with the first communication module; the first main control module is used for transmitting the channel communication signal to the first communication module, and the first communication module is used for transmitting the channel communication signal to the second communication module of the vehicle body control box and the second main control module control the vehicle body to be frequency-modulated to a corresponding channel for communication with the control box. The co-channel interference problem can be effectively solved, and the integration level of the climbing-free device control system is improved.

Description

Frequency converter
Technical Field
The utility model relates to the technical field of climbing-free devices, in particular to a frequency converter.
Background
In some scenes needing high-altitude operation, such as wind power generation, a certain lifting device is needed for conveying personnel and materials between a high-altitude operation platform and the ground and overhauling, and the climbing-free device is safe and efficient fan tower lifting device.
The existing climbing-free device control system comprises a mobile vehicle body and a control box, wherein the communication between the vehicle body and the control box is generally a local wireless communication mode for facilitating installation and use, but the problem that the local wireless communication is interfered by the same-frequency-band radiation signals in the environment exists, the instruction interference of adjacent equipment is reduced by using software identification in a mode of manually configuring communication address codes in related technologies, and the method cannot effectively solve the interference, is complex in operation and has poor user experience.
Disclosure of Invention
The utility model aims to provide a climbing-free device control system, a control device, a frequency converter and a climbing-free device, and aims to solve the problems of co-channel interference and poor user experience of the existing climbing-free device control system.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
in a first aspect, the present utility model provides a creeper free control system comprising: the control box control module and the vehicle body control module;
the control box control module comprises a first main control module and a first communication module, and the first main control module is electrically connected with the first communication module;
the vehicle body control module comprises a second main control module and a second communication module, and the second main control module is electrically connected with the second communication module;
the first main control module is used for transmitting a channel communication signal to the first communication module, the first communication module is used for transmitting the channel communication signal to the second main control module, and the second main control module is used for controlling the vehicle body to be frequency-modulated to a corresponding channel for communication with the control box according to the received channel communication signal.
Further, the first main control module comprises a first storage module and a random number generation module;
the random number generation module is used for generating a communication channel number, and the first storage module is used for storing the identity information of the vehicle body matched with the vehicle body and the communication channel number matched with the vehicle body.
Further, the second main control module comprises a second storage module, and the second storage module is used for storing the identity information of the vehicle body and the communication channel number matched with the control box.
Further, the first communication module and the second communication module are LoRa wireless communication modules, and the LoRa wireless communication modules are used for radiating and receiving LoRa wireless signals through wireless antennas.
Further, the control box control module further comprises a cellular network communication module, and the cellular network communication module is used for transmitting the operation information of the control box to the cloud platform.
In a second aspect, the present utility model provides a control device for a creeper free control system, the control device being mounted to a control apparatus of the creeper free control system, the control device comprising:
the control box control module comprises a first main control module and a first communication module, wherein the first main control module is electrically connected with the first communication module;
the first main control module is used for transmitting the channel communication signal to the first communication module, and the first communication module is used for transmitting the channel communication signal to the second main control module of the car body control box to control the car body to be communicated with the control box after being frequency-modulated to the corresponding channel.
Further, the first main control module comprises a first storage module and a random number generation module;
the random number generation module is used for randomly generating a communication channel number, and the first storage module is used for storing the identity information of the vehicle body matched with the vehicle body and the communication channel number matched with the vehicle body.
Further, the first communication module is a LoRa wireless communication module, and the LoRa wireless communication module is used for radiating and receiving LoRa wireless signals through a wireless antenna.
In a third aspect, the utility model provides a frequency converter for use in a creeper free control system, the frequency converter comprising a control board comprising a control device for a creeper free control system as described above.
In a fourth aspect, the utility model provides a climbing-free device, comprising a control box, a guide rail and a trolley, wherein the control box is fixed at one end of the guide rail, and the trolley is used for sliding along the guide rail;
the control box is provided with a control module which comprises a first main control module and a first communication module, and the first main control module is electrically connected with the first communication module;
the trolley is provided with a trolley body control module which comprises a second main control module and a second communication module, and the second main control module is electrically connected with the second communication module;
the first main control module is used for transmitting a channel communication signal to the first communication module, the first communication module is used for transmitting the channel communication signal to the second main control module through the second communication module, and the second main control module is used for controlling the vehicle body to be frequency-modulated to a corresponding channel for communication with the control box according to the received channel communication signal.
Compared with the prior art, the vehicle body communication control system is characterized in that a first main control module and a first communication module in a control box control module, and a second main control module and a second communication module of a vehicle body control module are used, the first main control module transmits channel communication signals to the first communication module, the first communication module transmits the channel communication signals to the second main control module, and the second main control module controls the vehicle body to be frequency-modulated to a corresponding channel for communication with the control box according to the received channel communication signals. The configuration flow is automatically completed through the climbing-free device control system, an installer can easily realize the installation configuration, the control box and the vehicle body are not required to be paired and bound in advance in the process of generation and installation, the transportation management and the installation flow are simplified, the one-to-one matching correspondence between the control box and the vehicle body can be ensured in the area with dense equipment, the influence of the same-frequency interference signals is avoided, the error matching between the control box of the equipment A and the vehicle body of the equipment B is avoided, the control box control module receives error control instructions sent by other vehicle bodies, the same-frequency interference problem is effectively solved, and the user experience is improved.
Drawings
The above features, technical features, advantages and implementation manners of a climb-free control system, a control device and a frequency converter will be further described with reference to the accompanying drawings in a clear and understandable manner.
FIG. 1 is a schematic diagram of a creeper free control system of one embodiment of the utility model;
FIG. 2 is a schematic diagram of a creeper free control system in accordance with another embodiment of the utility model;
FIG. 3 is a schematic structural view of a creeper free control system of yet another embodiment of the utility model;
FIG. 4 is a schematic structural view of a control device for a creeper free control system in accordance with one embodiment of the present utility model;
FIG. 5 is a schematic structural view of a control device for a creeper free control system in accordance with another embodiment of the present utility model;
FIG. 6 is a schematic structural view of a control device for a creeper free control system in accordance with yet another embodiment of the present utility model;
fig. 7 is a schematic diagram of a frequency converter according to an embodiment of the utility model.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
For simplicity of the drawing, only the parts relevant to the present application are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In addition, in the description of the present utility model, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
The following describes a climbing-free device control system, a control device, a frequency converter and a climbing-free device according to an embodiment of the present utility model with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a creeper free control system in accordance with one embodiment of the utility model. As shown in fig. 1, the control system of the climbing-free device includes a control box control module 10 and a vehicle body control module 20, wherein the control box control module 10 includes a first main control module 11 and a first communication module 12, the first main control module 11 is electrically connected with the first communication module 12, the first main control module may be a micro controller MCU, a DSP and other kernel processors, and is mainly used for processing data interaction of the whole system, the first communication module may be a wireless communication module, such as bluetooth, wiFi and the like, and in the embodiment of the utility model, the wireless communication module adopts a LORA wireless communication module. The first main control module 11 is connected with the first communication module 12 through a serial peripheral interface (Serial Peripheral Interface, SPI).
The vehicle body control module 20 includes a second main control module 21 and a second communication module 22, where the second main control module 21 is electrically connected with the second communication module 22, the second main control module may be a micro controller MCU, a DSP, etc. core processor, and is mainly used for processing data interaction of the whole system, and the second communication module may be a wireless communication module, such as bluetooth, wiFi, etc., and in the embodiment of the present utility model, the wireless communication module is a LoRa wireless communication module. The LoRa wireless communication module is used for radiating and receiving LoRa wireless signals through the wireless antenna. The second main control module 21 is connected with the second communication module 22 through an SPI interface.
The first main control module 11 is used for transmitting the channel communication signal to the first communication module 12, the first communication module 12 is used for transmitting the channel communication signal to the second main control module 21, and the second main control module 21 is used for controlling the vehicle body to be frequency-modulated to a corresponding channel for communication with the control box according to the received channel communication signal. It can be understood that, after the control box is started, the system starts the matched judging operation, if the control box is not matched with the car body, the main control module of the control box starts to operate the configuration flow to generate a channel communication signal, the first main control module performs SPI communication data interaction with the first communication module, the channel communication signal is transmitted to the first communication module, the first communication module and the second communication module realize data interaction through the wireless antenna, the second communication module realizes data interaction between the received channel communication signal and the second main control module through SPI communication, meanwhile, the second communication module transmits the identity information of the car body to the first communication module, and the second main control module modulates the frequency to the corresponding channel communication according to the received channel communication signal, so that the communication between the control box and the car body is realized, the physical channel is increased, and the main control module of the control box is managed by the main control module, and the problem of co-channel interference in a dense area of the climb-free control system is effectively solved in a one-to-one correspondence mode of the channel number.
Further, in one embodiment of the present utility model, as shown in fig. 2, the first main control module 11 includes a first storage module 111 and a random number generation module 112, where the random number generation module 112 is configured to randomly generate a communication channel number, and the first storage module 111 is configured to store the identity information of the vehicle body matched with the vehicle body and the communication channel number matched with the vehicle body. The second main control module 21 includes a second storage module 211, where the second storage module 211 is configured to store the identity information of the vehicle body and the communication channel number matched with the control box. In this embodiment, the random number generating module is a TRNG random number module, configured to generate a random number, generate a communication channel number within an allowable range, and the storage module is a storage chip or a storage card with a storage function, such as an SD card, configured to store identity information of a vehicle body matched with the vehicle body and the communication channel number matched with the vehicle body. It will be appreciated that in the case of a large number of predetermined channels, it takes a certain time to reselect a communication channel number each time, because it is not immediately necessary to randomly generate a random number and then convert the random number into a communication channel number, the wireless communication module needs to detect that the communication channel number is not occupied by other devices before the communication channel number is selected, and the selected communication channel number needs to be stored first after the communication channel number is selected.
Specifically, when the control box control module runs the configuration flow, the TRNG random number module generates a communication channel number, the first communication module checks whether the channel is occupied by the control boxes of other climbing-free device control systems in the space, if not, the communication channel number is transmitted to the second communication module through the first communication module, the second communication module transmits the identity information of the vehicle body to the first communication module, it can be understood that the first communication module and the second communication module communicate with each other according to the agreed public channel and the power level of the LoRa wireless communication module, and when the control box control module and the vehicle body control module are successfully channel-matched, the first storage module stores the identity information of the vehicle body matched with the vehicle body and the communication channel number matched with the vehicle body, and the second storage module stores the identity information of the vehicle body and the communication channel number matched with the control box. After the control box and the car body channel are successfully matched, the control box control module can receive the operation instruction sent by the mobile car body through the LoRa wireless communication module to perform corresponding operation, so that even in a region with dense equipment, one-to-one matching correspondence can be ensured between the control box and the car body, the influence of the same-frequency interference signals is avoided, and the error matching between the control box of the climbing-free device control system A and the car body of the climbing-free device control system B is avoided, so that the control box control module receives error control instructions sent by other car bodies.
Further, in one embodiment of the present utility model, as shown in fig. 3, the control box control module further includes a cellular network communication module 13, for transmitting the operation information of the control box to the cloud platform. The inventor finds that after the climb-free control system is installed and used in the process of improving the climb-free control system, the control box is in a disconnection state, the equipment use condition, the loss condition, the maintenance condition and the fault condition can not be counted, in the embodiment, the cellular network communication module uploads the operation and maintenance condition recorded by the control box to the cloud platform for big data management through an NB or LTE network, in a specific embodiment, after the control box is started, normal operation records with time stamps are generated at intervals of a preset time period and uploaded to the cloud server, preset standby time is set, the control box is detected to be in a starting state, no operation instruction is generated when the control box exceeds the preset standby time, and the vehicle body is not reset, and then the cellular network communication module automatically sends accident alarm information to the cloud platform. By arranging the cellular network communication module, not only can daily operation condition cloud monitoring be realized, but also an automatic alarm function of unexpected conditions can be realized, if the mobile car body is not reset in set time, operators can possibly have unexpected conditions, and the system can timely send out an automatic alarm signal.
In summary, according to the climbing-free control system according to the embodiment of the utility model, the first main control module and the first communication module in the control box control module, and the second main control module and the second communication module of the vehicle body control module, the first main control module transmits the channel communication signal to the first communication module, the first communication module transmits the channel communication signal to the second main control module, and the second main control module controls the vehicle body to be frequency-modulated to a corresponding channel for communication with the control box according to the received channel communication signal. The configuration flow is automatically completed through the climbing-free device control system, an installer can easily realize the installation configuration, the control box and the vehicle body are not required to be paired and bound in advance in the production and installation processes, the transportation management and installation flow is simplified, the one-to-one matching correspondence between the control box and the vehicle body can be ensured in the area with dense equipment, the influence of the same-frequency interference signals is avoided, the error matching between the control box of the climbing-free device control system A and the vehicle body of the climbing-free device control system B is avoided, the control box control module is caused to receive error control instructions sent by other vehicle bodies, the same-frequency interference problem is effectively solved, and the user experience is improved.
In order to realize the embodiment, the utility model further provides a control device for the climbing-free device control system.
As shown in fig. 4, the control device is installed in a control device, such as a control box of the control device, of the climbing-free control system, where the control device includes a control box control module, and the control box control module 10 includes a first main control module 11 and a first communication module 12, where the first main control module 11 is electrically connected to the first communication module 12, the first main control module may be a micro controller MCU, a DSP, etc. core processor, and is mainly used for processing data interaction of the whole system, and the first communication module may be a wireless communication module, such as bluetooth, wiFi, etc., and in the embodiment of the present utility model, the wireless communication module adopts a LoRa wireless communication module. The first main control module 11 is connected with the first communication module 12 through a serial peripheral interface (Serial Peripheral Interface, SPI).
The first main control module is used for transmitting the channel communication signal to the first communication module, and the first communication module is used for transmitting the channel communication signal to the second communication module of the vehicle body control box and the second main control module control the vehicle body to be communicated with the control box after the corresponding channel is modulated. When the control box is started, the system starts the judging operation of forced matching, if the control box is not matched with the car body, the main control module of the control box starts to operate the configuration flow to generate channel communication signals, the first main control module performs SPI communication data interaction with the first communication module, the channel communication signals are transmitted to the first communication module, the first communication module and the second communication module realize data interaction through wireless antennas, the second communication module realizes data interaction with the second main control module through SPI communication, the second main control module modulates the frequency to the corresponding channel communication according to the received channel communication signals, so that the communication between the control box and the car body is realized, physical channels are added, the management is performed by the main control module of the control box control module, and the common-frequency interference problem of multiple machines in a one-to-one mode is effectively solved.
Further, in one embodiment of the present utility model, as shown in fig. 5, the first main control module 11 includes a first storage module 111 and a random number allocation module 112, the random number generation module 112 is configured to randomly generate a communication channel number, and the first storage module 111 is configured to store the identity information of the vehicle body matched with the vehicle body and the communication channel number matched with the vehicle body. In this embodiment, the random number generating module is a TRNG random number module, configured to generate a random number, generate a communication channel number within an allowable range, and the storage module is a storage chip or a storage card with a storage function, such as an SD card, configured to store the vehicle body identity information and the matched communication channel number.
Further, in one embodiment of the present utility model, as shown in fig. 6, the control box control module further includes a cellular network communication module 13, for transmitting the operation information of the control box to the cloud platform.
In summary, according to the control device for the climbing-free control system according to the embodiment of the utility model, the control device is disposed in the control box, and the first main control module 11 and the first communication module 12 of the control box control module 10 transmit the channel communication signal to the first communication module, and the first communication module transmits the channel communication signal to the second main control module of the vehicle body control box to control the vehicle body to modulate the frequency of the corresponding channel to communicate with the control box, so that the control box and the vehicle body are in one-to-one matching correspondence, the same-frequency interference problem in the equipment dense area is effectively solved, and the user experience is improved.
In order to realize the embodiment, the utility model also provides a frequency converter, which is applied to the climbing-free device control system, as shown in fig. 7, and comprises a control board, wherein the control board comprises the control device for the climbing-free device control system. In this embodiment, in order to improve the system integration, the control device for the climb-free control system is integrated into the control board of the frequency converter, so as to save the system space. In another embodiment, the control device of the climbing-free device control system is made into a function expansion board which is connected to the control board of the frequency converter, so that the installation process can be simplified, and the material cost and the time cost can be saved.
In order to realize the embodiment, the utility model also provides a climbing-free device, which comprises a control box, a trolley and a guide rail, wherein the control box is fixed at one end of the guide rail, and the trolley is used for sliding along the guide rail;
the control box is provided with a control module which comprises a first main control module and a first communication module, and the first main control module is electrically connected with the first communication module;
the trolley is provided with a trolley body control module which comprises a second main control module and a second communication module, and the second main control module is electrically connected with the second communication module;
the first main control module is used for transmitting the channel communication signal to the first communication module, the first communication module is used for transmitting the channel communication signal to the second main control module through the second communication module, and the second main control module is used for controlling the vehicle body to be frequency-modulated to a corresponding channel for communication with the control box according to the received channel communication signal. The control box and the trolley are in one-to-one matching correspondence, so that the common-frequency interference problem of the equipment dense area is effectively solved, and the user experience is improved.
It will be apparent to those skilled in the art that the above-described program modules are only illustrated in the division of the above-described program modules for convenience and brevity, and that in practical applications, the above-described functional allocation may be performed by different program modules, i.e., the internal structure of the apparatus is divided into different program units or modules, to perform all or part of the above-described functions. The program modules in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one processing unit, where the integrated units may be implemented in a form of hardware or in a form of a software program unit. In addition, the specific names of the program modules are also only for distinguishing from each other, and are not used to limit the protection scope of the present application.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and the parts of a certain embodiment that are not described or depicted in detail may be referred to in the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the elements of the examples described in connection with the embodiments disclosed herein can be implemented as electronic hardware, or as a combination of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed system may be implemented in other manners. The above described embodiments are exemplary only, and exemplary, the division of the modules or units is merely a logical function division, and there may be additional divisions when actually implemented, exemplary, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (3)

1. The utility model provides a converter, its characterized in that is applied to exempt from to climb ware control system, the converter includes the control panel, the control panel is including being used for exempt from to climb ware control system's controlling means, controlling means install in exempt from to climb ware control system's controlgear, controlling means includes:
the control box control module comprises a first main control module and a first communication module, wherein the first main control module is electrically connected with the first communication module;
the first main control module is used for transmitting the channel communication signal to the first communication module, and the first communication module is used for transmitting the channel communication signal to the second communication module of the vehicle body control box and the second main control module control the vehicle body to be frequency-modulated to a corresponding channel for communication with the control box.
2. The frequency converter of claim 1, wherein the first master control module comprises a first storage module and a random number generation module; the random number generation module is used for randomly generating a communication channel number, and the first storage module is used for storing the identity information matched with the vehicle body and the vehicle body
And the matched communication channel numbers.
3. The frequency converter of claim 2, wherein the first communication module is a LoRa wireless communication module configured to radiate and receive LoRa wireless signals via a wireless antenna.
CN202222622362.7U 2022-09-30 2022-09-30 Frequency converter Active CN218995912U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222622362.7U CN218995912U (en) 2022-09-30 2022-09-30 Frequency converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222622362.7U CN218995912U (en) 2022-09-30 2022-09-30 Frequency converter

Publications (1)

Publication Number Publication Date
CN218995912U true CN218995912U (en) 2023-05-09

Family

ID=86197015

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222622362.7U Active CN218995912U (en) 2022-09-30 2022-09-30 Frequency converter

Country Status (1)

Country Link
CN (1) CN218995912U (en)

Similar Documents

Publication Publication Date Title
US20120038513A1 (en) Centralized antenna interface for wireless networks
US20230311685A1 (en) System and method for electric vehicle charging and security
CN218995912U (en) Frequency converter
CN207884895U (en) A kind of vehicular wireless network system and train
CN203311628U (en) Emergency communication vehicle scheduling system
CN114063535A (en) Vehicle-mounted wireless transmission device
CN107633668B (en) Infrared communication method and device for battery management in Internet of vehicles
US7385484B2 (en) Method for automobile registry control system
CN214959616U (en) Elevator connecting system
CN210822295U (en) Vehicle-mounted safety maintenance communication platform based on LTE-R network
CN103729890A (en) Ambiguous-path recognition system and interactive communication method
CN102802189A (en) Device for realizing GSM-R (Global System for Mobile Communications for Railways) signal coverage and QOS (Quality of Service) condition monitoring
CN110597314A (en) Wireless dehumidification system of looped netowrk cabinet
CN201222737Y (en) Self-cure monitoring apparatus for digital radio frequency zooming system
CN218805840U (en) Voltage monitoring device, communication device, grounding device, track beam, rail vehicle, rail transit system and vehicle voltage monitoring system
CN103676842A (en) Monitoring management device and system
CN217690097U (en) System capable of monitoring passive antenna feeder of trunking communication
Jiang et al. Design of elevator monitoring and alarm system based on WiMAX
CN109005248B (en) Secondary agent device and system of power grid dispatching platform
CN219831882U (en) Prevent mistake and go into electrified interval two-way management system
CN210609140U (en) Car networking system based on car networking device
CN114401021B (en) Integrated BTM antenna device and communication method thereof
CN211744508U (en) Distributed intelligent charging system based on wireless networking
CN210724838U (en) Internet of things management machine for ubiquitous power Internet of things
CN105278499A (en) Efficient enterprise informatization system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant