CN114803750B - Elevator car display screen resource offline updating method and medium based on UDP and FTP - Google Patents
Elevator car display screen resource offline updating method and medium based on UDP and FTP Download PDFInfo
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- CN114803750B CN114803750B CN202210229448.5A CN202210229448A CN114803750B CN 114803750 B CN114803750 B CN 114803750B CN 202210229448 A CN202210229448 A CN 202210229448A CN 114803750 B CN114803750 B CN 114803750B
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- display screen
- terminal
- ftp server
- elevator
- ftp
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012795 verification Methods 0.000 claims description 40
- 238000004590 computer program Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 10
- 238000012423 maintenance Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3407—Setting or modification of parameters of the control system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
- B66B3/002—Indicators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/164—Adaptation or special uses of UDP protocol
Abstract
This application is a divisional application with application number 2020100450155. The invention discloses an off-line updating method and medium for elevator car display screen resources based on UDP and FTP, which relates to the field of elevator car display screen updating, and is applied to an elevator display terminal.
Description
The application is a divisional application, the application number of the original application is 2020100450155, the application date is 20200116, and the invention is named as an off-line updating method, system, terminal and medium for elevator car display screen resources.
Technical Field
The application relates to the technical field of elevator car display screen updating, in particular to an elevator car display screen resource offline updating method and medium based on UDP and FTP.
Background
At present, the system of elevator car display screen mainly has singlechip system, embedded system and Android system, when the customer need change the display screen resource (and the elevator in scene is under the condition that does not have the Internet), after elevator maintenance personnel arrived the scene, need to dismantle elevator shell panel with the instrument, even need climb the car top to insert the mode of USB flash disk copy display screen resource and update, such operational mode has increased the work degree of difficulty and time, easy maloperation moreover.
Disclosure of Invention
The application aims to solve the technical problems of complex operation and low efficiency of updating display screen resources of the existing elevator car display screen, and provides an off-line elevator car display screen resource updating method based on UDP and FTP.
In order to solve the technical problems, the application is realized by the following technical scheme:
an elevator car display screen resource offline updating method based on UDP and FTP comprises the following steps:
the elevator display terminal receives the verification ID sent by the terminal through the UDP protocol;
checking whether the verification ID is consistent with the ID of the device;
if the login information is consistent with the login information, the elevator display end starts an FTP server and sends the login information of the FTP server to the terminal through a UDP protocol;
the terminal receives login information and logs in the FTP server, and uploads display screen resources to be updated to the FTP server;
and the elevator display terminal acquires display screen resources uploaded after the terminal logs in the FTP server according to the login information through the FTP server, and updates the acquired display screen resources.
The elevator car display screen resource offline updating method based on UDP and FTP as described above, the steps of "start FTP server, and send the login information of FTP server to terminal" specifically include the following steps:
starting an FTP server;
generating the login information for logging in the FTP server;
and sending the generated login information to a terminal through a UDP protocol.
The elevator car display screen resource offline updating method based on UDP and FTP comprises a user name and a password.
According to the elevator car display screen resource offline updating method based on UDP and FTP, the login information is the identity of the elevator display end, the IP of the FTP server and the access port number.
The method for updating the elevator car display screen resources offline based on UDP and FTP comprises the following steps that a terminal acquires display screen resources uploaded after logging in an FTP server according to login information and updates the acquired display screen resources:
acquiring the display screen resource uploaded to the FTP server by the terminal;
storing the display screen resource to a local place;
and updating the saved display screen resource into a currently displayed picture.
According to the elevator car display screen resource offline updating method based on UDP and FTP, the elevator display end and the terminal are Android operating systems.
According to the elevator car display screen resource offline updating method based on UDP and FTP, the terminal is a mobile phone, a tablet computer or a notebook computer based on an Android operating system.
A medium having stored thereon a computer program which when executed by a processor implements the steps of the UDP and FTP based elevator car display screen resource offline updating method described above.
The medium may be a magnetic disk, an optical disk, or a Read-Only Memory (ROM), as described above.
Compared with the prior art, the application has the following advantages:
the invention discloses an off-line updating method of elevator car display screen resources based on UDP and FTP, which is applied to an elevator display end for updating display screen resources, firstly, a terminal receives an authentication ID sent by a UDP protocol, the terminal adopts a UDP wireless communication mode between the terminal and the elevator display end in a local area network, the terminal sends the authentication ID to the elevator display end through the UDP protocol to carry out identity authentication, then the elevator display end receives the authentication ID sent by the terminal and checks whether the authentication ID is consistent with the equipment ID to carry out identity checking, if the authentication ID is the equipment ID, the authentication identity is passed, the elevator display end opens an FTP server, waits for receiving a resource file, sends login information of the FTP server to the terminal through the UDP protocol, then the terminal receives the login information and logs in to be connected with the FTP server, establishes FTP connection with the elevator display end and realizes data sharing, the display screen resources to be updated are uploaded to the FTP server, then the elevator display end acquires the display screen resources through the FTP server, and carries out display screen resource updating under the condition of no network, the off-line updating of the display screen is realized by utilizing wireless UDP communication and transmission under the condition that the elevator display screen is not used, the elevator is not used for carrying out the off-line updating of the resources, the elevator resources are not required to be replaced by a user, and the elevator resources are not required to be replaced, and the elevator resources are not required to be partially, and can be replaced.
The invention discloses an elevator car display screen resource offline updating system which is applied to an elevator display end for updating display screen resources and comprises a verification ID receiving module, a verification ID checking module, a starting and transmitting module and an updating acquisition module, wherein the verification ID receiving module is used for receiving verification IDs transmitted by a terminal through a UDP protocol, the terminal adopts a UDP wireless communication mode between a local area network and the elevator display end, the terminal is used for transmitting the verification IDs to the elevator display end through the UDP protocol to carry out identity verification, the verification IDs transmitted by the verification ID receiving module are received, the verification IDs are checked to be consistent with the ID of the equipment through the verification ID checking module to carry out verification, if the verification IDs are the ID of the equipment, the verification IDs are passed, the transmitting module is started to open an FTP server, waiting for receiving resource files, the login information of the FTP server is transmitted to the terminal through the UDP protocol, the terminal is then logged in to be connected with the FTP server, the FTP connection is established with the elevator display end, the data sharing is realized, the display screen resources to be updated are acquired by the updating acquisition module through the FTP server, the display screen resources are updated through the FTP server, the display screen resources are not required to be updated, the elevator resources are not required to be transmitted in an offline mode, the elevator can be replaced by a wireless elevator part, and the elevator resources can be not be replaced by a user.
The invention discloses an off-line updating terminal for elevator car display screen resources, which comprises an authentication ID sending module, a login information receiving module and a login uploading module, wherein the terminal is in a local area network and adopts a UDP wireless communication mode, the authentication ID sending module sends authentication ID to an elevator display terminal through a UDP protocol so as to carry out identity authentication, when the authentication ID sent by the authentication ID sending module is received by the elevator display terminal and is consistent with the equipment ID of the elevator display terminal, the authentication passes, the elevator display terminal sends login information of an FTP server to the terminal through the UDP protocol, the login information receiving module receives the login information, the login uploading module is connected with the FTP server in a login mode, the FTP connection is established with the elevator display terminal and realizes data sharing, display screen resources to be updated are uploaded to the FTP server, the elevator display terminal acquires the display screen resources through the FTP server and updates the display screen resources, the wireless communication and the FTP transmission are utilized under the condition of no network, the elevator has no need of off-line updating of the display screen resources, and the elevator has no Internet transmission resources through the local area network, the elevator maintenance staff can be ensured, the elevator parts are not required to be disassembled and the operation time is reduced.
A medium of the present application stores a computer program, which when executed by a processor, implements the steps of the method for offline updating elevator car display screen resources based on UDP and FTP. The medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), or the like.
Drawings
Fig. 1 is a flow chart of an off-line update method for elevator car display screen resources based on UDP and FTP according to the present application.
Fig. 2 is a functional block diagram of an elevator car display screen resource offline update system of the present application.
Fig. 3 is a functional block diagram of an off-line update terminal for elevator car display screen resources of the present application.
Detailed Description
The present application is described in further detail below with reference to the drawings by way of specific embodiments, as shown in fig. 1-3.
An off-line updating method of elevator car display screen resources based on UDP and FTP is applied to an elevator display end, and comprises the following steps:
receiving an authentication ID sent by the terminal through a UDP protocol;
checking whether the verification ID is consistent with the ID of the device;
if the login information is consistent with the login information, starting an FTP server, and sending the login information of the FTP server to the terminal through a UDP protocol;
and the display screen resources uploaded by the terminal after logging in the FTP server according to the login information are obtained, and the obtained display screen resources are updated.
The invention discloses an off-line updating method of elevator car display screen resources based on UDP and FTP, which is applied to an elevator display end for updating display screen resources, firstly, a terminal receives an authentication ID sent by a UDP protocol, the terminal adopts a UDP wireless communication mode between the terminal and the elevator display end in a local area network, the terminal sends the authentication ID to the elevator display end through the UDP protocol to carry out identity authentication, then the elevator display end receives the authentication ID sent by the terminal and checks whether the authentication ID is consistent with the equipment ID to carry out identity checking, if the authentication ID is the equipment ID, the authentication identity is passed, the elevator display end opens an FTP server, waits for receiving a resource file, sends login information of the FTP server to the terminal through the UDP protocol, then the terminal receives the login information and logs in to be connected with the FTP server, establishes FTP connection with the elevator display end and realizes data sharing, the display screen resources to be updated are uploaded to the FTP server, then the elevator display end acquires the display screen resources through the FTP server, and carries out display screen resource updating under the condition of no network, the off-line updating of the display screen is realized by utilizing wireless UDP communication and transmission under the condition that the elevator display screen is not used, the elevator is not used for carrying out the off-line updating of the resources, the elevator resources are not required to be replaced by a user, and the elevator resources are not required to be replaced, and the elevator resources are not required to be partially, and can be replaced.
The step of starting the FTP server and sending the login information of the FTP server to the terminal through the UDP protocol specifically comprises the following steps:
starting an FTP server;
generating login information for logging in an FTP server, wherein the login information comprises a user name and a password;
and sending the generated login information to a terminal through a UDP protocol.
After the terminal passes the authentication, an FTP server for a file transfer protocol is started on the elevator display end, the FTP login information is automatically generated when the FTP server is started, and the login information is sent to the terminal through UDP communication. The login information comprises a user name and a password, and the login information can be used for logging in an FTP server on the terminal through the FTP client so that an FTP transmission connection is formed between the terminal and the elevator display terminal. Alternatively, the login information can also be an identity of an elevator display end, an IP of an FTP server, and an access port number.
The step of acquiring the display screen resources uploaded by the terminal after logging in the FTP server according to the login information and updating the acquired display screen resources specifically comprises the following steps:
acquiring the display screen resource uploaded to the FTP server by the terminal;
storing the display screen resource to a local place;
and updating the saved display screen resource into a currently displayed picture.
When the terminal uploads the resource to the FTP server, the corresponding FTP server on the elevator display terminal receives the uploaded display screen resource file at the same time, after the uploaded display screen resource is acquired on the FTP display, the uploaded display screen resource is stored and updated, and the transmission of the resource file in the local area network can be realized by using the FTP without a network.
An elevator car display screen resource offline update system, comprising:
a reception authentication ID module 11 for receiving an authentication ID transmitted by the terminal through a UDP protocol;
a verification ID module 12 for verifying whether the verification ID is identical to the device ID;
the starting and sending module 13 is used for starting the FTP server and sending the login information of the FTP server to the terminal through a UDP protocol when the checking and verifying ID module checks that the checking result is yes;
and the acquisition updating module 14 is used for acquiring display screen resources uploaded after the terminal logs in the FTP server according to the login information and updating the acquired display screen resources.
The application discloses an elevator car display screen resource offline updating system which is applied to an elevator display end for updating display screen resources, the system comprises a verification ID receiving module 11, a verification ID module 12, a starting transmitting module 13 and an acquisition updating module 14, wherein the verification ID receiving module 11 receives verification IDs transmitted by terminals through UDP protocols, the terminals adopt UDP wireless communication modes between a local area network and the elevator display end, the terminals transmit verification IDs to the elevator display end through UDP protocols to carry out identity verification, the verification ID receiving module 11 receives the verification IDs transmitted by the terminals, the verification ID module 12 is used for checking whether the verification IDs are consistent with the equipment IDs to carry out verification, if the verification IDs are the equipment IDs, the verification IDs pass through, the transmitting module 13 is started to open an FTP server, waiting for receiving resource files, transmitting login information of the FTP server to the terminals through UDP protocols, the terminals receive the login information and are connected with the FTP server, the FTP connection is established with the elevator display end, the display screen resources to be updated are uploaded to the FTP server, the acquisition updating module 14 acquires the verification IDs through the display screen server through the UDP protocols to update the display screen resources, the display screen resources are not required to be updated through the FTP server, the elevator display screen resources are not required to be updated, the elevator resources can be transmitted in a wireless mode, and the elevator display screen resources can be replaced by a user can be replaced without any need, and the elevator resources can be replaced by a user when the elevator display screen resources are not be transmitted by a user, and the elevator display resources can be replaced by a user or not be replaced by a user.
The start transmitting module 13 includes:
FTP server 131;
an FTP server unit 132 for starting the FTP server 131;
a login information generating unit 133 for generating the login information for logging in the FTP server 131, the login information including a user name and a password;
and a login information transmitting unit 134 for transmitting the login information to the terminal through a UDP protocol.
When the terminal passes the authentication, the FTP server unit 132 is started to start the FTP server 131 for the file transfer protocol on the elevator display end, the login information generating unit 133 automatically generates the login information of the FTP when the FTP server unit 132 is started to start the FTP server 131, and the login information transmitting unit 134 transmits the login information to the terminal through UDP communication. The login information comprises a user name and a password, and the FTP server 131 can be logged in on the terminal through the FTP client through the login information, so that an FTP transmission connection is formed between the terminal and the elevator display terminal. Alternatively, the login information may be an identity of the elevator display end, an IP of the FTP server 131, and an access port number.
The acquisition update module 14 includes:
an acquiring display screen resource unit 141, configured to acquire the display screen resource uploaded to the FTP server 131 by the terminal;
a display screen resource unit 142, configured to store the acquired display screen resource locally;
and an update display screen resource unit 143, configured to update the saved display screen resource to a picture displayed on the current elevator display terminal.
When the terminal uploads the resource to the FTP server 131, the corresponding FTP server 131 on the elevator display end receives the uploaded display screen resource file at the same time, after the display screen resource obtaining unit 141 obtains the uploaded display screen resource on the FTP display, the display screen resource storing unit 142 stores the uploaded display screen resource and then the update display screen resource unit 143 updates the display screen resource, so that the transmission of the resource file in the local area network can be realized by using the FTP without network.
An elevator car display screen resource offline update terminal, comprising:
a verification ID transmitting module 21 for transmitting a verification ID to the elevator display terminal through a UDP protocol;
a login information receiving module 22, configured to receive login information sent by the elevator display end and used for logging in the FTP server through a UDP protocol when the verification ID passes the verification;
the login uploading module 23 is configured to login to the FTP server according to the login information, and upload the display screen resource to the FTP server.
The utility model provides an elevator car display screen resource off-line updating terminal, including verifying ID sending module 21, login information receiving module 22 and login uploading module 23, the terminal is in the LAN with adopting UDP wireless communication mode, verifying ID sending module 21 sends verification ID to the elevator display terminal through the UDP protocol in order to carry out the authentication, when the elevator display terminal receives the verification ID that verifies that ID sending module 21 sent and elevator display terminal equipment ID is unanimous, then verify the identity and pass through, the elevator display terminal sends the login information of FTP server to the terminal through the UDP protocol, then login information receiving module 22 receives the login information, and log in and connect the FTP server through login uploading module 23, establish FTP connection and realize data sharing with the elevator display screen resource that will be updated, acquire the display screen resource through the FTP server and carry out the update of display screen resource by the elevator display terminal, utilize wireless UDP communication and FTP transmission to realize the off-line update of display screen resource under the condition that the elevator does not have the network, under the elevator does not have the Internet condition, through the LAN transmission resource, can make elevator maintenance personnel keep the elevator, unnecessary part of elevator maintenance and the operation time is reduced, the operation time is reduced and the operation is carried out.
The login uploading module 23 includes:
FTP client 231;
an FTP client opening unit 232 for opening the FTP client 231;
a login FTP server unit 233 configured to login an FTP server on the FTP client 231 according to the login information;
and an upload display screen resource unit 234 for uploading the display screen resource to the FTP server.
After the FTP client unit 232 is started to start the FTP client 231, the FTP server is logged in after the login information of the elevator display terminal is input through the login FTP server unit 233, so that the terminal and the elevator display terminal realize data sharing, and the display screen resource file is sent through the uploading display screen resource unit 234, so that the Internet is realized, and the resource file is transmitted in the local area network.
The elevator car display screen resource offline updating terminal is a mobile phone, a tablet computer or a notebook computer based on an Android operating system. The preferable terminal is an Android system, and the elevator display terminal is an Android system module.
A medium having stored thereon a computer program which when executed by a processor implements the steps of the UDP and FTP based elevator car display screen resource offline updating method. The medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), or the like.
Claims (5)
1. An off-line updating method for elevator car display screen resources based on UDP and FTP is characterized by comprising the following steps:
the elevator display terminal receives the verification ID sent by the terminal through the UDP protocol;
checking whether the verification ID is consistent with the ID of the device;
if the login information is consistent, the elevator display end starts an FTP server and sends login information of the FTP server to the terminal through a UDP protocol, wherein the login information is an identity of the elevator display end, an IP of the FTP server and an access port number;
the terminal receives login information and logs in the FTP server, and uploads display screen resources to be updated to the FTP server;
the elevator display terminal obtains display screen resources uploaded after the terminal logs in the FTP server according to the login information through the FTP server, and updates the obtained display screen resources;
the step of starting the FTP server and sending the login information of the FTP server to the terminal through the UDP protocol specifically comprises the following steps:
starting an FTP server;
generating the login information for logging in the FTP server;
the generated login information is sent to a terminal through a UDP protocol;
the step of acquiring the display screen resources uploaded by the terminal after logging in the FTP server according to the login information and updating the acquired display screen resources specifically comprises the following steps:
acquiring the display screen resource uploaded to the FTP server by the terminal;
storing the display screen resource to a local place;
and updating the saved display screen resource into a currently displayed picture.
2. The elevator car display screen resource offline updating method based on UDP and FTP according to claim 1, wherein: the elevator display end and the terminal are Android operating systems.
3. The elevator car display screen resource offline updating method based on UDP and FTP according to claim 2, wherein: the terminal is a mobile phone, a tablet personal computer or a notebook computer based on an Android operating system.
4. A medium having stored thereon a computer program which, when executed by a processor, implements the steps of the UDP and FTP based elevator car display screen resource offline updating method according to any one of claims 1-3.
5. The medium according to claim 4, wherein: the medium is a magnetic disk, a compact disk or a Read-Only Memory (ROM).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210229448.5A CN114803750B (en) | 2020-01-16 | 2020-01-16 | Elevator car display screen resource offline updating method and medium based on UDP and FTP |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010045015.5A CN111252639B (en) | 2020-01-16 | 2020-01-16 | Method, system, terminal and medium for offline updating elevator car display screen resources |
| CN202210229448.5A CN114803750B (en) | 2020-01-16 | 2020-01-16 | Elevator car display screen resource offline updating method and medium based on UDP and FTP |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010045015.5A Division CN111252639B (en) | 2020-01-16 | 2020-01-16 | Method, system, terminal and medium for offline updating elevator car display screen resources |
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| Publication Number | Publication Date |
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| CN114803750A CN114803750A (en) | 2022-07-29 |
| CN114803750B true CN114803750B (en) | 2024-02-02 |
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| CN202210229448.5A Active CN114803750B (en) | 2020-01-16 | 2020-01-16 | Elevator car display screen resource offline updating method and medium based on UDP and FTP |
| CN202010045015.5A Active CN111252639B (en) | 2020-01-16 | 2020-01-16 | Method, system, terminal and medium for offline updating elevator car display screen resources |
| CN202210229434.3A Active CN114803749B (en) | 2020-01-16 | 2020-01-16 | Elevator car display screen resource offline updating system based on UDP protocol and FTP transmission |
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| CN202210229434.3A Active CN114803749B (en) | 2020-01-16 | 2020-01-16 | Elevator car display screen resource offline updating system based on UDP protocol and FTP transmission |
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| CN114803748B (en) * | 2020-01-16 | 2023-05-23 | 广东卓梅尼技术股份有限公司 | Elevator car display screen resource off-line updating terminal based on UDP communication and FTP connection |
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| JP2000137593A (en) * | 1998-08-28 | 2000-05-16 | Canon Inc | Information processor/processing method/system, storage medium storing information processing program, transmission device transmitting information processing program and information processing program product |
| EP1089580A3 (en) * | 1999-09-29 | 2001-10-24 | Fujitsu Limited | Mobile communications service system, mobile communications service method, authentication apparatus, and home agent apparatus |
| JP2006293595A (en) * | 2005-04-08 | 2006-10-26 | Nippon Telegraph & Telephone West Corp | Elevator information distribution system and program |
| CN104732323A (en) * | 2013-12-18 | 2015-06-24 | 株式会社日立制作所 | Maintenance management system of elevating apparatus |
| CN111252639A (en) * | 2020-01-16 | 2020-06-09 | 广东卓梅尼技术股份有限公司 | Method, system, terminal and medium for offline updating elevator car display screen resources |
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| Publication number | Publication date |
|---|---|
| CN114803748A (en) | 2022-07-29 |
| CN114803748B (en) | 2023-05-23 |
| CN111252639A (en) | 2020-06-09 |
| CN114803749B (en) | 2024-02-06 |
| CN114803750A (en) | 2022-07-29 |
| CN111252639B (en) | 2022-06-10 |
| CN114803749A (en) | 2022-07-29 |
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