retrofit server lcd panel supplier
MoniServ, Inc.(lcdparts.net/lcdpart.com), we carry thousands of replacement parts for all types of industrial LCD screens (LCD panels), such as the LCD screens for ATM, PLC, Kiosks, POS, CNC machinery, Medical, Gaming, Digital signage, Avionic and other industrial applications. Varieties of LED backlight upgrade kits are also available! With simple tools, you can repair these expensive display assemblies at the fraction of the cost
In one embodiment, a digital signage vending machine retrofit kit can be implemented. The digital signage vending machine retrofit kit can include a touchscreen display panel and AC power cable; a media player and power supply; a cellular wide area network (WAN) radio and power supply; a cellular antenna; an antenna cable; one or more strips of double sick foam tam an installation kit with adhesive primer, a cleaning cloth, alcohol cleaning wipe, assorted adhesive tie-wrap blocks, assorted tie wraps, and hook and loop fastener strips; and printed installation instructions. In addition, the digital signage vending machine retrofit kit can include T-Taps and AC power cord for tapping into existing AC power. Furthermore, the digital signage vending machine retrofit kit can include a video cable, an Ethernet cable, and a universal serial bus (USB) cable. Moreover, the digital signage vending machine retrofit kit can include touchscreen LCD display that could use projected capacitive touch sensing.
In another embodiment, digital signage vending machine retrofit kit can be implemented. The digital signage vending machine retrofit kit can include a touchscreen display panel and AC power cable; a media player and power supply; a cellular wide area network (WAN) radio and power supply; a cellular antenna; an antenna cable; a video cable; a universal serial bus (USB) cable; an Ethernet cable; T-Taps and AC power cord for tapping into existing AC power; one or more strips of double sick foam tape; an installation kit with adhesive primer, a cleaning cloth, alcohol cleaning wipe, assorted adhesive tie-wrap blocks, assorted tie wraps, and hook and loop fastener strips; and printed installation instructions.
In an additional embodiment, vending machine with digital signage can be implemented. The vending machine with digital signage can include a door with a window in the door, where the door closes to form an interior compartment and where the vending machine has a top surface; a display panel affixed to the window from the interior compartment so that images displayed on the display panel are visible through the window; a media player coupled to the display panel to play video content on the display panel; a cellular wide area network (WAN) radio coupled to the media player to receive video content via the cellular WAN; and a cellular antenna coupled to the cellular WAN radio and affixed to the top surface of the vending machine. Additionally, the vending machine can include touchscreen LCD display that could use projected capacitive touch sensing, where the display panel is affixed to the window using double-stick foam tape.
In yet another embodiment, vending machine with digital signage can be implemented. The vending machine with digital signage can include a door with a window in the door, where the door closes to form an interior compartment; a touchscreen display panel affixed to the window by double stick foam tape; the touchscreen display panel comprises a touchscreen LCD display using projected capacitive touch sensing; a media player coupled to the display panel to play video content on the display panel; a cellular wide area network (WAN) radio coupled to the media player to receive video content via the cellular WAN; and a cellular antenna coupled to the cellular WAN radio.
FIG. 5 is an example of a cross-section of a touch-panel display mounted to the inner surface of a glass window in a vending machine door in a manner consistent with certain embodiments of the present invention.
Unfortunately, vending machines are often located in places susceptible to damage by vandalism or break-in. So, any retrofit to provide digital signage and the like should be done in a manner that protects the added components from the elements and from damage by vandals and the like.
The inventor has devised a system referred to as the Vend and Touch System to address some of these issues while providing a networked vending machine design that is readily retrofit to legacy vending machines.
Referring now to FIG. 1, the Vend and Touch system is an interactive digital signage system for a network of vending machines such as 10. The system has a media player 14 connected to an LCD touchscreen display 18, mounted behind the glass of the vending machine 10. The system can be programmed to play a rotating loop of ads consisting of graphics and video if desired. Users can use the touch screen to see related ads, special offers, etc. and to interact with the retrofitted machine. By installation of the LCD touchscreen behind the front glass panel of the vending machine, it is protected from the elements and from easy removal by the same locks that protect product and money. The system communicates via a cellular WAN radio 22 using a cellular data network via an antenna 26 to the wireless network carrier 30. This wireless network carrier 30 provides a communication link between the vending machine 10 and a server 34 with a secure database or storage 38. In the model illustrated, a separate Deployment Vendor 42 is charged with deployment of the retrofit kits in the field and informing the server operator of data relating to the deployments such as location. The Deployment Vendor 42 is also charged with interfacing with advertisers and acquiring video assets, playlists, etc. therefrom and providing such information to the server operator. The Deployment Vendor 42 is further charged with retrieving logged data from the server 34 for use in coordination of advertisements and the like.
Each device can display ads targeted to the demographics of its location, and can track impressions and user interactions, and upload logs back to a central server at regular intervals. The software architecture for this system includes a server-based system for distributing ad media and control logic to the individual vending machine systems, the code that will run on the media players to deliver the media, and a system for collecting impression and interaction data back from those systems and aggregating it into useful reports.
The vending machine system of the current implementation has a 600×800 pixel (portrait-aspect) 12 inch diagonal touchscreen display 18, attached to a VGA port of a Spinetics HMP100™ media player 14 for video to the touchscreen and its USB port for touchscreen input. Each device is installed in a snack vending machine 10, and is networked via cellular WAN radio 22, such as for example, using AT&T"s 3G wireless data network. The touchscreen display 18 is preferably a Zytronic brand custom designed touchscreen LCD display using projected capacitive touch sensing.
Deployed “Machines” (vending machines) can receive content and instructions from a server, using a media player operating in a “Pull” mode, i.e. the media player will contact the server at regular intervals to see if the programming for their ad content (which can be managed individually for each system or as a group) has changed. If it has, the media player downloads any new content and instructions that are needed to use the new content.
The Server 34 can be a Linux-based machine used for managing all the elements of the larger system. This will primarily include a database that contains: A list of all the deployed machines, including their network address, their physical address/location, their currently programmed ad campaign, their date/time of last update, etc.
Each retrofitted vending machine 10 operates as a client in a client-server model with the server being server 34. The basic control language for the Media Player 14 is preferably Scalable Vector Graphics (SVG), a form of extensible markup language (XML) specialized for visual display. As with the creation of hypertext markup language (HTML) for a website, the code can be hand-written for each component of each ad, or generated programmatically by server-based software on-the-fly when requested. The same is true of the SVG code that drives the Media Player 14. Hand-coding is fast and simple, whereas server-generated code is more flexible and scales easily to much larger projects. The design can also use a hybrid approach that uses server software to generate the overall instructions for each individual vending machine system, but to hand-code the SVG for the certain ads and ad campaigns.
The server software design can be done using a hypertext transfer protocol (HTTP) based setup, hosted on a Linux system, and built upon the CakePHP rapid-development framework. Media Serving can be carried out using the following attributes: Protocol for file transfer: Web-based Distributed Authoring and Versioning (WebDAV) over HTTP.
Ad Campaigns can be created as SVG files that reference individual ad folders in playlist-style. Some can be server-generated on the fly, and others can be built by hand. Logic for mapping campaigns to individual machines may be manual or automated. But logic is in place for complex mapping based on programmatic analysis of numerous demographic parameters.
Schedule Serving is carried out by the Media Player checking an iCal format calendar file on the server. A PULL event will initiate file update/download process and a LOG SEND event will initiate a logs upload process.
Turning now to FIG. 2, a broader view of a network of vending machines is depicted in which deployment 42 is shown sending graphics, video, text, play lists, and customer location data and receiving log data from the server 34 with secure database or storage 38. Server 34 downloads the graphics, playlists and videos etc. to the vending machines 10 via the wireless network carrier 30 and the VPN and receives log data back from the vending machines 10. Vending machines 10 then are able to provide advertisements, videos, etc. on touchscreen display 18.
FIG. 3 depicts a vending machine 10 in which a retrofit kit such as is described herein has been installed. It is observed that most vending machines in use for the past several decades have a front door including a single pane glass window (or other transparent material referred to generically as glass herein) which is generally about 4 mm thick. It has been discovered that with certain touchscreen display panels (including many of those using Zytronic"s projected capacitive touch sensing) are quite sensitive and can actually be placed behind the glass window of the vending machine"s door on the interior of the vending machine with the display side facing out through the window and still function well. In the example implementation, the touchscreen wires are disposed on the inside surface of the touchscreen 18.
The use of double stick foam tape for the installation provides a great deal of versatility to the retrofit, making it near universal for retrofit to a variety of vending machines and a variety of circumstances. For example, the display can be mounted either as portrait or landscape format, and can be located at any desired location of the window. It may be desirable, for example, to mount the display lower to more readily accommodate the disabled by placing the display within easy reach of a person in a wheelchair. Or, it may be desirable to place the display in a location that does not cover product.
In the preferred implementation, 3M brand VHB double stick foam tape is used, but other types of tape may also be suitable. This tape can be removed cleanly without special tools and residue can be removed with alcohol. This tape also operates well over a very wide range of temperatures and holds the display firmly in place. To provide for ease of removal, the tape can be applied along three edges of the display—top and two sides as depicted by tape strips 70, 72 and 74 of FIG. 4. The tape is applied to a frame border 78 surrounding the display panel 18 and the display panel 18 can then be affixed to the inside of the glass. This is depicted in a side cutaway view in FIG. 5. In this illustration, the display panel 18 is shown with a flange-like frame border 78 around the display. The strips of double stick foam tape 70 and 72 are shown forming a bond between the frame border 78 and the glass window 80 of the vending machine door. Once installed, a touch from a user"s finger on the glass will activate the corresponding area of the touchscreen.
In one implementation, a retrofit kit is provided which includes the following components: A touchscreen display panel (18)—also referred to as the VMDS12TA interactive digital sign;
The retrofit kit described herein (the model VMDS12TAK digital signage kit) is provided with an installation manual which can have text similar to the following with accompanying illustrations (supplemented herein by reference to illustrative figures):
AC power can typically be found in vending machines near the lighting or in proximity to the control panel. Use a volt meter to check for power in the wires. When wires have been identified follow the steps shown in the figures below:
Once all the equipment (digital media player, cellular WAN Radio, antenna, etc.) is installed, verify connectivity to the cellular network by checking the LEDs on the front panel of the cellular WAN radio (FIG. 15) as described in TABLE 1 below:
Thus, in accord with certain implementations, a digital signage vending machine retrofit kit has a touchscreen display panel and an AC power cable; a media player and power supply therefor; a cellular wide area network (WAN) radio and power supply therefor; a cellular antenna; an antenna cable; one or more strips of double-stick foam tape; an installation kit with an adhesive primer, a cleaning cloth, an alcohol cleaning wipe, assorted adhesive tie-wrap blocks, assorted tie wraps, and hook and loop fastener strips; and printed installation instructions.
The kit can further include any or all of T-Taps and AC power cord for tapping into existing AC power, a video cable, an Ethernet cable, a universal serial bus (USB) cable. The display panel can be a touchscreen display panel such as a touchscreen LCD display panel using projected capacitive touch sensing or other touchscreen LCD display.
Another example digital signage vending machine retrofit kit has a touchscreen display panel and an AC power cable; a media player and power supply therefor; a cellular wide area network (WAN) radio and power supply therefor; a cellular antenna; an antenna cable; a video cable; a universal serial bus (USB) cable; an Ethernet cable; T-Taps and an AC power cord for tapping into existing AC power; one or more strips of double-stick foam tape; an installation kit with an adhesive primer, a cleaning cloth, an alcohol cleaning wipe, assorted adhesive tie-wrap blocks, assorted tie wraps, and hook and loop fastener strips; and printed installation instructions.
An example vending machine with digital signage consistent with certain implementations has a vending machine having a door with a window in the door, where the door closes to form an interior compartment and where the vending machine has a top surface. A display panel is affixed to the window from the interior compartment so that images displayed on the display panel are visible through the window. A media player is coupled to the display panel to play video content on the display panel. A cellular wide area network (WAN) radio is coupled to the media player to receive video content via the cellular WAN. A cellular antenna is coupled to the cellular WAN radio and affixed to the top surface of the vending machine.
In certain implementations, the display panel detects touches through the window. In certain implementations, the touchscreen display panel comprises a touchscreen LCD display panel using projected capacitive touch sensing. In certain implementations, the touchscreen display panel comprises a touchscreen LCD display. In certain implementations, the display panel is affixed to the window using double-stick tape. In certain implementations, the display panel is affixed to the window using three strips of double-stick tape, one adjacent a top edge, and two adjacent left and right sides of the display panel respectively. In certain implementations, the double-stick tape comprises double stick foam tape.
Another example vending machine with digital signage has a vending machine having a door with a window in the door, where the door closes to form an interior compartment and where the vending machine has a top surface. A touchscreen display panel is affixed to the window by double stick foam tape from the interior compartment so that images displayed on the display panel are visible through the window and where the display panel detects touches through the window. The touchscreen display panel has a touchscreen LCD display using projected capacitive touch sensing. A media player is coupled to the display panel to play video content on the display panel. A cellular wide area network (WAN) radio is coupled to the media player to receive video content via the cellular WAN. A cellular antenna is coupled to the cellular WAN radio and affixed to the top surface of the vending machine. In certain implementations, the display panel is affixed to the window using three strips of double-stick tape, one adjacent a top edge, and two adjacent left and right sides of the display panel respectively.
What I want to ask here is that when I want to do POST data to the server, I want that one of the JSON lines will appear instead of the regular response code such as "200" or "400". When I try it on the postman, the body will display one of the JSON lines above, but when I try to insert data from the android application, it shows me the regular response one. How can I get the custom code prepared by the server and display it through Toast.maketext() instead of the "Actual" response.body()?
LG retrofit HVAC solutions offer a quick and easy replacement of your old HVAC system, featuring an optimised inverter system that allows you to save more than 50% of energy per year. The HVAC system replacement doesn"t require additional constructions and uses existing pipes and installation materials. Discover more below.
LG Air Conditioner Retrofit solution can reuse existing installation materials such as power lines, breakers, communication lines, drains, and pipes. This reduces costs and installation times and eliminates the need for intrusive construction.
With LG Inverter technology, you can reduce unnecessary energy use and save on electricity bills. Life Cycle Cost (L.C.C.) analysis helps estimate energy savings and payback you could get when using Retrofit Solution’s Inverter technology.
The E-Motive PRP with nav box is the only option for easily upgrading to a fantastic LCD solution. Fit the PRP display without having to worry about replacing the entire COP, wiring up to the controller, having the correct lift protocol or having the wrong configuration on the display.
In Android apps that rely on a web service, we usually check the state of the network before issuing web requests. This allows us to alert the user of some problem without having to wait for the network request to time out. This usually requires a call into ConnectivityManager. However it can be tedious to do this for each request.One popular solution to making web requests is to use Retrofit. When using Retrofit an easy way to handle the asynchronisity of web requests is to use RxJava Observables. If you’re using Retrofit and RxJava there is an easy way to to monitor the state of a network connection. Let’s find out!
Let’s assume that you already have Retrofit setup to make web requests. In our example, we are going to get public events from Github’s API. Our Retrofit interface looks like:public interface GithubWebService {
So where can we call: NetworkMonitor.isConnected() so that a network check happens seamlessly every time we make a web request? Let’s peek into our Dagger module, where we created our Retrofit object in the first place:@Provides
Retrofit is a REST Client for Java and Android. This library, in my opinion, is the most important one to learn, as it will do the main job. It makes it relatively easy to retrieve and upload JSON (or other structured data) via a REST based webservice.
In Retrofit you configure which converter is used for the data serialization. Typically to serialize and deserialize objects to and from JSON you use an open-source Java library — Gson. Also if you need, you can add custom converters to Retrofit to process XML or other protocols.
For making HTTP requests Retrofit uses the OkHttp library. OkHttp is a pure HTTP/SPDY client responsible for any low-level network operations, caching, requests and responses manipulation. In contrast, Retrofit is a high-level REST abstraction build on top of OkHttp. Retrofit is strongly coupled with OkHttp and makes intensive use of it.
Now that you know that everything is closely related, we are going to use all these 3 libraries at once. Our first goal is to get all the cryptocurrencies list using Retrofit from the Internet. We will use a special OkHttp interceptor class for CoinMarketCap API authentication when making a call to the server. We will get back a JSON data result and then convert it using the Gson library.
When learning something new, I like to try it out in practice as soon as I can. We will apply a similar approach with Retrofit 2 for you to understand it better more quickly. Don’t worry right now about code quality or any programming principles or optimizations — we’ll just write some code to make Retrofit 2 work in our project and discuss what it does.
We are going to execute HTTP requests on a server accessible via the Internet. Give this permission by adding these lines to your Manifest file:
Find the latest Retrofit version. Also you should know that Retrofit doesn’t ship with an integrated JSON converter. Since we will get responses in JSON format, we need to include the converter manually in the dependencies too. We are going to use latest Google’s JSON converter Gson version. Let’s add these lines to your gradle file:// 3rd party
As you noticed from my comment, the OkHttp dependency is already shipped with the Retrofit 2 dependency. Versions is just a separate gradle file for convenience:def versions = [:]
Ok after a quick experiment, it is time to bring this Retrofit implementation to the next level. We already got the data successfully but not correctly. We are missing the states like loading, error and success. Our code is mixed without separation of concerns. It’s a common mistake to write all your code in an activity or a fragment. Our activity class is UI based and should only contain logic that handles UI and operating system interactions.
The first step to improve was to start using Dependency Injection. Remember from the previous part we already have Dagger 2 implemented inside the project correctly. So I used it for the Retrofit setup./**
As you may have noticed while creating the Retrofit builder instance, we added a special Retrofit calls adapter using addCallAdapterFactory. By default, Retrofit returns a Call
Instead of communicating with our Retrofit implementation directly, we are going to use Repository for that. For each kind of entity, we are going to have a separate Repository./**
If the app is freshly installed and it is its first launch, then there will not be any data stored inside the local database. Because there is no data to show, a loading progress bar UI will be shown. Meanwhile the app is going to make a request call to the server via a web service to get all the cryptocurrencies list.
Another class used in our Repository and LiveDataCallAdapter where all the "magic" happens is ApiResponse. Actually ApiResponse is just a simple common wrapper around the Retrofit2.Response class that converts each response to an instance of LiveData./**
Inside this wrapper class, if our response has an error, we use the Gson library to convert the error to a JSON object. However, if the response was successful, then the Gson converter for JSON to POJO object mapping is used. We already added it when creating the retrofit builder instance with GsonConverterFactory inside the Dagger AppModule function provideApiService.
Because we want to use the networking library OkHttp in our project for all network operations, we need to include the specific Glide integration for it instead of the default one. Also since Glide is going to perform a network request to load images via the internet, we need to include the permission INTERNET in our AndroidManifest.xml file — but we already did that with the Retrofit setup.
So we are going to use coroutines everywhere in this app where we need to wait until a result is available from a long-running task and than continue execution. Let’s see one exact implementation for our ViewModel where we will retry getting the latest data from the server for our cryptocurrencies presented on the main screen.
The idea of all this code is that we can combine multiple calls to form nice-looking sequential code. First we request to get the ids of the cryptocurrencies we own from the local database and wait for the response. Only after we get it do we use the response ids to make a new call with Retrofit to get those updated cryptocurrency values. That is our retry functionality.
Ms.Josey 
Ms.Josey