IPhone 4S: 5 Tips for Better Battery Life on IOS 5.0.1

IPhone users were prompted to update their software to iOS 5.0.1 on Saturday in what was supposed to be a quick fix for the iPhone 4S' battery drain issue. But even though some users have seen an improvement in their battery life, the majority of users continue to complain; some say that the problem has become worse since the upgrade.

As Apple users flocked to support forums to vent over the persistence of their battery drain, Apple confessed that the new software did not fix all of the battery-related issues. The recent iOS 5.0.1 software update addressed many of the battery issues that some customers experienced on their iOS 5 devices, the company said. We continue to investigate a few remaining issues.

Many iPhone 4S users in Apple forums have complained of getting 10 hours on standby mode instead of the 200 hours that is listed as one of the new phone's features. While Apple has been trying to figure out how to solve the issue, tips have been circulating on the Web on how to save battery life -- but users are becoming increasingly frustrated as this limits the usage of many of the new features on the highly anticipated smartphone.

Here are five battery tips we recommend that will save your battery life without depriving you of the main features:

iCloud: The iPhone iCloud is the most hassle-free cross population of all your data, but it is something users can do without during their pursuit of maximizing their battery life. All photos, e-mails and other data can be backed up in five minutes just by plugging the iphone into the computer and syncing it with iTunes. The iCloud backs data up seamlessly, but the more data and e-mail accounts users hold, the more it takes from the battery.

Display settings: It's amazing how a few simple changes to your display can add hours onto your battery life. Simply bring down the brightness of your phone. This is also supposed to be healthier for the eyes. You can also set your auto-lock to a minimum of 1-minute as this will automatically switch off and lock your screen.

Siri: While Siri might be one of the best and most fun features of the 4S, it is wise to be economical with its usage as its Internet usage consumes a great percentage of battery life. Since the launch of the computer assistant almost a month ago, the novelty of asking questions and dictating messages seems to have not yet worn off. People have been reported as spending hours with friends crafting creative questions for the assistant in anticipation of her answers. With the current battery life span, it's wise to just use Siri for directions and to write messages manually.

Radio: IPhones aside, radios are one of the biggest listed battery drains in smartphones, as they use 3G and location services. Make sure your usage of the radio is minimal, and that the location services are always switched off.

Push Notifications: Also, try to be selective with which apps you use to send through push notifications, because you do not need notifications for every app, and they drain a lot of energy.

IOS 7 jailbreak is broken?

Hey there, A few people I have spoken to regarding this issue are also experiencing similar problems such as yourself. At the current moment in time, it looks like Evsaion7 will not be 100% compatible on all platforms. I would suggest waiting for Evasi0n to release an updated tool for this release, considering IOS 7 is still only in Beta for the jailbreak. I would suggest keeping an eye out on Twitter for Pod2G and MuscleNerd as they are the ones who usually provide information on these sorts of issues, be warned though - that while the Jailbreak may work on iOS 7.0.4 it can still cause complications within the software. Hope this helps somewhat, Phil

What features in iOS 9 make a difference?

Battery Widget in Notification CenterIf you use your iDevice with a pair of bluetooth headphones or you have an Apple Watch, this widget might come in handy. It basically lists the battery levels of every peripheral connected to the device

Command associations with privilege levels in Cisco IOS

From Cisco IOS 15SY, User Security Config Guide:So Priv 15 can do anything. Priv 1 can do anything that does not require enable mode.I understand this is a roundabout, reversed answer to your question, but it's the standard one. I know of no canonical list for either category.To give a little more info, here's what I get from my C2960 running IOS Version 12.2(50r)SE1:

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Why Restaurant Delivery Service Is a Fantastic Food Business
Why Restaurant Delivery Service Is a Fantastic Food Business
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Prevent Photos App From Opening When Connecting Any IOS-device on OS X El Capitan
Prevent Photos App From Opening When Connecting Any IOS-device on OS X El Capitan
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Why Is the Demand of an Indian IOS App Development Company Surging in the United States?
Why Is the Demand of an Indian IOS App Development Company Surging in the United States?
As we all know there are a few major factors why companies prefer to outsource to India. Here's an image of top rated outsourcing companies. Though it's published in 2015, but at least you'll get an idea about. 1. What is the scope of learning Viper framework in iOS app development?I read about this guy and there are some good insights even being very particular hated by some people.The problem it solves like MVVM are the architecture organization of IOS programs. They tends to have the problem with massive view controllers. That's just too much code inside those classes makes the code a little bit harder to maintain and extend.Viper try to address such issues and divides the application in several files for different purposes.Critics says that viper is what happens when java developers try to program on iOS but being a former java programmer I know that's simply not truth because almost the majority of java devs won't ever try iOS but mostly would go android and mess with recycle views. What is the scope of learning Viper framework in iOS app development?2. What is the best way to start iOS app development?So you are thinking of becoming an iOS Developer . You've been thinking about it for a long time and you want to know how to be an iOS programmer .First we focus on programming on iOS . It is Apple's flagship mobile device and we must pay due attention to it. In a first approach, we know perfectly well that designing an iOS app will have some differences with respect to Android.Learn MoreWhat is the best way to start iOS app development?3. Which MacBook Pro 2015 is better for iOS app development, the one with a 2.2 Ghz CPU or the one with a 2.5 Ghz CPU (it costs $250 more)?Obviously 2.5 GHz is better than 2.2.Now you comment telling me that you meant to ask which is a better deal for the money, and I comment that neither of them are, as they are both ripoffs made by Apple4. What is the iOS app development job hierarchy in a software company?Software Trainee /Junior Developer Software Engineer/Software Developer Senior Software Engineer Team Lead/Technical Lead Project Manager/Project Lead/Technical Architect Senior PM/Senior PL Associate Director(Purely managerial) Director Associate Vice President(AVP) Vice-President Chief Executive Officer.5. Can we install macOs on windows VM for iOS app development? I am just starting out learning iOS app dev, and need to know whether it is possible?You could, technically, but I am not sure if you will be able to run your projects on an actual device (as opposed to the iOS simulator).However, keep in mind that you are basicaly running two full fledged operating systems at the same time so the hardware demands could raise the price to the point where it would have been cheaper to just get a MacBook Air, which can run XCode just fine6. What is Average iOS app development cost?it is totally depend upon the work, how do you want the developer to do there job7. What is best way to determine Android or iOS app development budget?There's no framework nor standards to determine the budget. Honestly, estimating a project is one of the hardest things a programmer can do. If you overestimate the project, then you could lose clients or not have the project gleenlit. If you underestimate, then you seriously piss off some people.Estimating comes with experience. As for app specific budgets, you have to consider the following:How many screens?nHow many OS's are you allowing?nPhone only? Tablet only? Or both supported?nWill there be networking required? If so, then how much work needs to be done for a server API?nIs there social media integration? FB, Twtter, etcnPush Notifications?nLocal Storage?nNeat Animations?nDeep/Universal Linking?This is in addition to the actual requirements list. What does your app have to do? I.E. is there a registration screen? A login screen? Are you using maps? How long will it take you to build out a map screen?The estimation heavily depends on the features as well as the UI/UX. An app has to look nice. So how long will it take you to make it look like the designs given to you?What is best way to determine Android or iOS app development budget?
Apple's Global Developer Conference Will Open on June 3 and Will Release a New Version of IOS
Apple's Global Developer Conference Will Open on June 3 and Will Release a New Version of IOS
Early this morning, Apple announced the date of its 2019 global developer conference: June 3-7 (local time, June 4-8 Beijing time). In this year's WWDC, new versions of IOS, MacOS, tvos and watchos will usher in large version upgrades. The theme of wwdc19 is "write code. Blow minds." the location is also at the McEnery Convention Center in San Jose, California.Wwdc2019 is Apple's biggest annual event. The keynote speech will bring the latest Apple information and show the progress made by developers in many fields such as machine learning, augmented reality, health and fitness, including technical activities, practical operation laboratory and guest speeches.The verge said that this year, a lot of emphasis will be placed on IOS 13, and Apple hopes to bring more radical changes to the core user interface of iPad and iPhone. There are rumors that Apple has been trying to improve its "springboard" user interface, and this work will begin this year.In addition, there are many other improvements in IOS. In particular, the iPad pro (2018) has powerful hardware, but it is limited by software and lacks many practical functions, such as lack of multi-user support and excessive restrictions on external USB devices.However, the most anticipated thing about wwdc19 is how Apple intends to integrate IOS and MacOS more closely by allowing iPad (perhaps iPhone) applications to enter the Mac. This work has started with MacOS Mojave, but is limited to a few apple applications. This year, we expect apple to open up to more developers.Elsewhere, Apple has been improving its mobile based augmented reality software, and we are likely to see more news in June. Moreover, with the construction of 5g network, VR / AR and other technologies have a great recovery.At present, wwdc19 registration has begun. Developers can apply for tickets to the conference through WWDC website. As usual, apple provides tickets through "random selection". Registration will end at 5 p.m. / 8 p.m. EDT on March 20. The ticket price is $1599. Apple said it would offer up to 350 scholarships this year
What Are the Benefits of Upgrading IPhone 11 to IOS 13.3.1
What Are the Benefits of Upgrading IPhone 11 to IOS 13.3.1
The content of IOS 13.3.1 update is mainly for iPhone 11 series models. It adds the function of controlling U1 chip switch, fixes the bug of "slow half shot" during deep fusion photography, and optimizes some functions. As for whether it is more power-saving, different users have different feedback, but it is much better than the old model.Fixed the delay caused by deep fusion photographyThe iPhone 11 series models have added the deep fusion photographing function to take 5 photos continuously. Using the powerful A13 chip and neural network engine, the five photos are synthesized through AI and its learning, and the photographing effect has been greatly improved. However, this is the exclusive function of iPhone 11 series, which needs the help of A13.After the deep fusion camera is turned on, the camera will jam when it starts. It feels like a half shot. After upgrading to IOS 13.3.1, this problem can be effectively solved.Can switch U1 chip positioning serviceU1 chip is added to iPhone 11 series mobile phones, and more accurate positioning function is provided in the system, which improves the efficiency of space delivery, such as using airdrop to transfer files to each other.However, U1 chips are only installed on iPhone 11 series models, such as iPad and iMac, which are not equipped with U1 chips, and there are not many practical application scenarios. After upgrading to IOS 13.3.1, apple integrates the switch of U1 chip into the system service. Users can choose to turn off the location service of U1 chip, but the closing menu is hidden deeply. The closing method is shown in the figure below.System fluency improved slightlyAfter each upgrade, the system is smoother and the battery life is longer. This can be classified as "metaphysics", and different users have different experiences. From the user's feedback on the upgrade, IOS 13.3.1 upgrade is relatively friendly to new models such as iPhone 11, but not very friendly to old models such as iPhone 6S and 7. The general response is that it consumes more power. The statistical results are shown in the figure below.In short, for the new models of iPhone 11 series, it is recommended to upgrade to IOS 13.3.1. Many bugs have been fixed and some new functions unique to iPhone 11 have been unlocked.
MVVM and Coordinator Pattern Together
Today lets talk about a common problem when creating an application. What design pattern should a choose?. Actually there are many pattern you can use when building an iOS application: MVC, MVP, MVVM, VIPER etc. These are some of most used in iOS, each one with different approaches over each other but finally which one is the best?. It depends what are you working on, what big is your project and how much time you can spend building the app.if you want to learn more about those pattern you can read this article: iOS Architecture patters with Bohdan Orlov.Now lets talk about two different patterns:MVVM: the view model is responsible for exposing (converting) the data objects from the model in such a way that objects are easily managed and presented. in other words this is a bridge between the model and view/viewController. Is a elegant way to avoid Massive view controllers moving the logic to the View Model.Coordinator: the coordinator or mediator will be in charge of our application routing (navigation) then the views/viewControllers doesnt need to know about where they are or if they are inside of a navigation, they only need to send the navigation actions to the coordinator/mediator.MVVM in actionfirst lets see how MVVM works and why this is very important for us.This is a little bit easy to understand how it works:The view/viewController send an event or tasks to the viewModelThe viewModel perform a task (fetch something in the backend, perform an operation, gets the model, etc.)The viewModel notifies to viewController through: KVO, Delegates, Callbacks, Binding etc.In fact, nowadays, if you hear MVVM you think Reactive programming, and vice versa. Although it is possible to build the MVVM with the simple bindings, RxSwift and RxCocoa will allow you to get most of the MVVM.This way is how we are gonna make our example using RxSwift to fetch some data and RxCocoa to bind the data to the view.First we have the viewController:If you know RxSwift this is pretty easy if not Im gonna explain how it works:we have viewModel property, this is the reference to our view model, actually this a protocol so we dont hardcode a specific type and the viewModel can be anything that implements the protocol.we have searchBarText that is an Observable to the searchBar text.we perform the search with our viewModel calling the method .fetchRepositories(for: searchBarText) that returns an observer and then we can subscribe to it and wait for the task result.finally we have the method .drive(tableView.rx.items(cellIdentifier: String(describing: RepositoryCell.self), cellType: RepositoryCell.self)). This is very similar to bindTo method but using a driver, if you dont know what a driver is go here.Second part the viewModel:This is easier than before :)Here we have only one method that receives an Observable of type string, guess what, that Observable will be the searchBar text what was declared before in the viewController and thats it :) the view Model is ready.Third part the model:Actually I have separated the model in two parts:The networking: here we have the networking call and when we handle the response, handling errors and parsing it.The Repository Model: here we have the object representation of a Repository and thats it a model shouldnt contain any specific logic or networking calls it only contains data and anymore.It looks really cool our app is able of bring data from an API call and show it in a table view with very little code over more we have cool architecture and defined roles.And here we have the benefits:Distribution Now our viewController doesnt take care about the models anymore, it just send events to the view model and it perform the task, when its finished sends the response back to the view controller, actually the view controller doesnt know what really happens under the hood because now it isnt its responsibility :).Testability the View Model knows nothing about the View, this allows us to test it easily. The View might be also tested, but since it is UIKit dependent you might want to skip it.Reusability As our viewControllers doesnt perform an specific task its easy to reuse a lot of code and views in the project as well as the view models.Scalability now the project is easy to change or update because the roles are well defined and the view controllers doesnt perform a lot of task as before with MVC (Massive view controllers).Its time to Coordinatorsour application looks very good but we still have a big problem, what if I want to another screen, who is charge of this task, the viewController, the viewModel?. The answer is none of them, we need a new element in our architecture to handle the app routing.Lets try to add a coordinator to our app but first we need to understand where and how it should go.Ok it looks very similar than before but now we have a new component the coordinator, It is charge of handle our application routing. usually you have many coordinators in your project because you have different navigations and modules in your app. You can relate the coordinators with a container like UITabBarController, UISplitViewController etc, or with a navigation such as UINavigationController these are most used containers and navigations in your app. Every time you need to create one of those you know that need a coordinator to handle the flow :).Its time to write some code and watch a coordinator in action.First lets change our view controller to know when the user selects a row.This is very simple we only call the method modelSelected(Repository.self) and then we bind the repository to the view model.Now update the view model.here we have some new stuff lets see:now our view model conforms a protocol called Transitionable that only have a property called navigationCoordinator.subscribe to repositorySubject well be called each time user select a row in the table view.call performTransition this doesnt need explanation :)Final part the Coordinator.This is quite easy as well, we have a custom init() method where we create the view model and navigation controller then we assign navigationCoordinator to self.Finally our coordinator implements the method performTransition(transition: Transition) and thats it we have all app components ready and working.This has been all here hope you would like this architecture and enjoy playing with this here is the final project.Follow me on Twitter to read more about iOS Development Gorozco58. Follow me on Github to see a lot of iOS Code Gorozco58.ConclusionWe have seen what powerful is use design patterns together and how it can help you have a strong architecture and scalable application.Also we have seen how to use RxSwift to bind to view and the viewModel this is the best approach (for me) if you are gonna use MVVM everything is clearer and you can save more than 40% of code with RxSwift anyways there are a lot ways to do this. up to you which one choose .Thank you for reading! If you liked this article, please hit Recommend (the button) so other people can read it too :)·RELATED QUESTIONOrganizing code for iOS app developmentThere is no industry standard as such. You could look into sample Apple Source Projects to see how they do it..You could however, try organizing your files into Groups & associate each group to a folder..So on and So Forth.. Also, associate each group to a folder inside your project.
Biosolar Prepares for the next Phase of Its Super Battery Technology Development
BioSolar, Inc. (OTCQB: BSRC), a developer of breakthrough energy storage technology and materials, today announced its strategic plans for the Company's next phase of development that focuses on identifying partners to further collaborate with to advance its proprietary Super Cathode technology.The Company plans to pursue key benchmarks that include designing and building prototype electrodes and battery cells in multiple stages that will facilitate systematic evaluation of the technology's performance. In addition, the Company intends to form strategic partnerships with battery prototyping and testing laboratories as well as potential customers with interest in the Company's technology.In identifying a potential customer as an ideal candidate for development partnership, the Company hopes to achieve multiple objectives. One, while the Company is confident in its technology and its potential, it acknowledges that initial sales efforts are important to success. By working alongside a potential customer during the product's development, the Company believes it will be well positioned for adoption soon after completion. Secondly, a potential client as a development partner would bring crucial experience and resources to advancing the technology to ensure it is ready for market.The Company previously announced that it successfully completed the first phase of its Super Cathode technology development, with test results showing a clear path to enabling high energy and low cost lithium-ion batteries. The Company believes the progress demonstrates the potential of its cathode technology to achieve significantly higher energy capacity with costs below $100/kWh, less than half of today's lowest cost lithium-ion batteries."We expect that prototype Li-ion batteries constructed with our cathode will not only demonstrate a reduced cost and a storage capacity improvement over existing lithium-ion batteries, but also a significantly improved cycle life," said Dr. David Lee, CEO of BioSolar. "We are also pleased to conduct conversations and searches for organizations who we believe can be strong development partners for ongoing collaboration and advancement. Our team believes the upcoming demonstrations of our battery technology will further strengthen our position as an innovator in the energy storage sector." BioSolar is currently funding a sponsored research program at the University of California, Santa Barbara (UCSB), to further develop its super battery technology. The lead inventors of the technology are UCSB professor Dr. Alan Heeger, the recipient of a Nobel Prize in 2000 for the discovery and development of conductive polymers, and Dr. David Vonlanthen, a project scientist and expert in energy storage at UCSB. About BioSolar, Inc. BioSolar is developing a breakthrough technology to double the storage capacity, lower the cost and extend the life of lithium-ion batteries. A battery contains two major parts, a cathode and an anode, that function together as the positive and negative sides. Today's state-of-the-art lithium-ion battery is limited by the storage capacity of its cathode, while the anode can store much more. Inspired by nature, we are developing a novel cathode based on inexpensive conductive polymers and organic materials that can fully utilize the storage capacity of conventional anodes. By integrating our high capacity, high power and low-cost cathode with conventional anodes, battery manufacturers can create a super lithium-ion battery that can double the range of a Tesla, power an iPhone for 2 days straight, or store daytime solar energy for nighttime use. Founded with the vision of developing breakthrough energy technologies, BioSolar's previous successes include the world's first UL approved bio-based back sheet for use in solar panels.To learn more about BioSolar, please visit our website at Safe Harbor Statement Matters discussed in this press release contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. When used in this press release, the words "anticipate," "believe," "estimate," "may," "intend," "expect" and similar expressions identify such forward-looking statements. Actual results, performance or achievements could differ materially from those contemplated, expressed or implied by the forward-looking statements contained herein. These forward-looking statements are based largely on the expectations of the Company and are subject to a number of risks and uncertainties. These include, but are not limited to, risks and uncertainties associated with: the impact of economic, competitive and other factors affecting the Company and its operations, markets, product, and distributor performance, the impact on the national and local economies resulting from terrorist actions, and U.S. actions subsequently; and other factors detailed in reports filed by the Company.
Tinder Swipe in Flutter
After offering a glimpse into the capabilities of Flutter with this super smooth login animation, we thought of taking it a step further by creating a Tinder-like card swipe component, which offered a much more in-depth understanding of animation control and rendering in Flutter.Here, we have implemented two ways to swipe your cards in the appCard swiping on horizontal dragCard swiping on click of buttons on the cardHow to implementFirst, create the basic UI of the screen how we want to make it look.Within the scaffold, use Stack Widget to place the cards on top of one other and position them by wrapping it in Positioned Widget to give the card deck effect.In the Stack of cards, the card at front is only the active one showing all the animation. Other cards are just dummy. So we need to add all logics and animation to the active card only.Here is my card design.You can design your card and use it.In the initState() initialise the controller:_buttonController new AnimationController(duration: new Duration(milliseconds: 1000), vsync: this);Animating any object is basically your perception towards it. Here if we closely observe the active card when animation starts, it is just moving slightly up, starts to rotate and while rotating it is moving in the specified direction(left or right).And here comes my logic implementation :To implement this I have used three animation variables to manipulate the style attributes of widget and initialised them in the initState() with their controller.Animation rotate;Animation right;Animation bottom;I have used the Tween class along with the CurvedAnimation widget. Tween specifies the point at which the animation should begin and end.There is no intervals in the animations. All will occur simultaneously once the controller starts. Now to start animation, controller should be start which I have called in the swipeAnimation().Future _swipeAnimation() async try await _buttonController.forward(); on TickerCanceled Now lets start with animation:The last child of the stack will be active card, others are just to render with specified positions.Let your last card widget in stack be named as ActiveCard().To give skew and rotating effect to the card I have wrapped the card with Transform and RotationTransition Widgets and given the animating values to the rotation and skew attributes.To change the position of card i.e, move up then either left or right, the whole Transform Widget needs to be again wrapped in Positioned Widget which should be the direct child of the Stack.Here I have used Dismissible Widget, a widget that can be dismissed by dragging in the indicated direction. On horizontal drag of the card, the card gets dismissed from the stack and calls the onDismissed()callback where you can update your data. crossAxisEndOffset attribute of the dismissible widget give the end offset across the main axis after the card is dismissed.All done!Just on the click of the button we have to call the _swipeAnimation()Navigation to Detail ScreenAs you have seen above, I have given GestureDetector and Heroanimation to the card. When we tap on the activeCard, Home screen will navigate to Detail screen with hero animation giving the effect that it was just the card that expanded and shows the detail of the event.Its pretty awesome as you will not get the glitch of navigation.To expand the card, I have given animation to the height and width attribute of the child container of card. And for appBar Animation, Flutter itself provides the CustomScrollView with SliverAppbar and SliverList Widgets to create various scrolling effects, such as lists, grids, and expanding headers.On click of back-arrow button, the app pops the detail Screen from navigation stack and return back to Home Screen.You can check out the entire code of this App here:geekruchika/FlutterCardSwipeContribute to geekruchika/FlutterCardSwipe development by creating an account on GitHub.github.comFollow GeekyAnts blog to stay updated with our contributions in Flutter.Interested in learning Flutter? Head on to FlutterLearn, our newest educational portal for Flutter.FlutterLearnFlutterLearn: Learning, that gives you wings!flutterlearn.comI am a Software Developer at GeekyAnts, creator of this r App, heavily invested in Flutter.Thanks to Sanket Sahu for all the help and support that he gave me technically and while writing this post.Thanks for reading Please if you liked this article.·RELATED QUESTIONWhat is the brief description about iOS app development?Well,Today there is a more demand of iOS apps.iOS (originally iPhone OS) is a mobile operating system created and developed by Apple Inc. and distributed exclusively for Apple hardware. It is the operating system that presently powers many of the company's mobile devices, including the iPhone, iPad, and iPod touch.By which application software is developed for handheld devices, such as personal digital assistants, enterprise digital assistants or mobile phones. These applications can be pre-installed on phones during manufacturing platforms, or delivered as web applications using server-side or client-side processing (e. g. JavaScript) to provide an"application-like" experience within a Web browser.Application software developers also have to consider a lengthy array of screen sizes, hardware specifications and configurations because of intense competition in mobile software and changes within each of the platforms .The iOS user interface is based on the concept of direct manipulation,using multi-touch gestures. Interface control elements consist of sliders, switches, and buttons. Interaction with the OS includes gestures such as swipe, tap, pinch ,and reverse pinch ,all of which have specific definitions within the context of the iOS operating system and its multi-touch interface. Internal accelerometers are used by some applications to respond to shaking the device (one common result is the undo command) or rotating it in three dimensions (one common result is switching from portrait to landscape mode). For more detail contact appdite. com/What is the brief description about iOS app development?
Design of Cable Fault Detector Based on NIOS Soft Core
In this paper, a cable fault detector based on embedded microprocessor NIOS is designed. A high-speed data acquisition system with variable frequency is composed of a / D device and FPGA. The principle of low-voltage pulse reflection method is used to detect and locate the open circuit, short circuit, open circuit point and short circuit point of the cable. The instrument can be widely used in communication maintenance, engineering construction and generic cabling, testing and obstacle maintenance of local telephone cables, coaxial cables and other cables.1. Overall system structureLow voltage pulse reflection method is used to detect cable fault. The main principle is: Send a voltage pulse to the cable. When the transmitted pulse encounters a fault on the transmission line, the reverse pulse is generated due to the impedance mismatch at the fault point. The fault characterization and location are carried out by calculating the time difference △ t between the two and analyzing the characteristics of the reflected pulse. This method is applicable to the test of broken wire, poor contact, low resistance or short circuit fault.Distance L of fault point: l = V ·△ T / 2. Where V is the propagation speed of the pulse in the cable. The fault nature can be judged according to the polarity of the reverse pulse: the reverse pulse caused by disconnection or poor contact is positive, and the reverse pulse caused by low resistance or short circuit fault is negative.The instrument is a portable cable fault detection equipment, which can use modern electronic technology (such as high-speed A / D technology, asynchronous FIFO technology, field programmable logic array FPGA, etc.) to improve integration and flexibility. The overall structure of the system is shown in Figure 1.The pulse generation circuit generates the detection pulse, the high-speed A / D converter samples the pulse and its reflected echo signal, and uses asynchronous FIFO as the buffer of a / D sampling data. As the core of the system, the soft core NIOS controls the start and end of detection tasks, the selection of pulse transmission and reception mode, the processing and calculation of a / D sampling data, the judgment and display of fault nature and location, etc. Among them, the soft core processor and logic function are programmed in the field programmable logic device.2 function and performance indexShort circuit test: detect whether there is unnecessary connection and its position between cable cores.Open circuit test: detect whether a core wire in the cable is open circuit and its position.Display: display the test results, that is, the position of open circuit and short circuit in the measurement.Measuring range: 2 1000 m.Test accuracy: 2 m and 10 m can be selected.Pulse amplitude: load open circuit 5 v.Pulse width: 20 ns, 100 ns.Maximum sampling rate: 100 MHz.Waveform recording length: 1024 points.
What Is 5g Smart Street Lamp Post and What Are Its Application Scenarios
5g smart street lamp post has been widely used in various urban scenes since its development. Based on the Internet of things technology, it realizes the remote centralized control and management of street lamps. Smart street lamp post has multiple functions such as lighting control, WiFi sharing, traffic monitoring, environmental monitoring, charging pile and security alarm, which can greatly save power resources, improve the level of public lighting management and save maintenance costs, It plays an important role in building a smart city and smart transportation.Application of intelligent road light pole in highwayIn recent years, smart road lamp posts have gradually appeared on the streets of many cities. Unlike traditional street lamps, smart street lamp poles integrate hardware such as monitoring, camera, 5g micro base station and security alarm. Through information perception and big data interaction technology, they can realize functions such as intelligent lighting, intelligent transportation and information release. With a batch of smart road light poles put into use everywhere, the smart city has a new scenery.Application of smart road lamp pole ParkIn front of the comprehensive energy service center in the Zhongxin eco city science and Technology Park of Tianjin Binhai New Area, the newly-built "5g smart road light pole" can realize the perception of 10 types of facilities and the expansion of 17 specific social service functions, and integrate the functions of electric vehicle charging pile, WiFi and information query, so as to provide more convenience for people's daily life.Application of light pole in smart road scenic spotIn addition to the basic functions of communication and lighting, the new smart road light pole in the scenic spot also has new applications such as security monitoring, environmental perception, municipal management and media release, and shoulders a number of business entrances to the smart scenic spot. The functions of pedestrian flow monitoring, security monitoring, one click alarm, information broadcasting and environmental monitoring are integrated in one shot. For tourists, it has a comfortable playing environment and reliable security guarantee; For city managers, more convenient unified management and more intensive use control.fqj
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