The Art of Exposure Compensation | Internal Mechanics of Camera Exposure.

Exposure compensation is a process by which we photographers are able to tell the camera what it should consider as the correct exposure and make adjustments accordingly. Our modern digital cameras are quite smart and they do get things right most of the time. However, there are certain problems still to be resolved.

The Art of Exposure Compensation | Internal Mechanics of Camera Exposure. 1

One of the most important problems is that our cameras cannot perceive what it is looking at. Yes, there are face- and eye-detection technologies available but their applicatios are very limited. Cameras generally tends to follow PRE-programmed algorithms for certain scenarios which can be problematic sometimes.

We will discuss the problem of exposure in this article. It is very important that you have a good understanding of light metering modes and its uses before you read this. All you need to know is right here:Basic Understanding Of Light & Need For Light Metering.

Light Metering Modes | When To Use What & Why?Give them a quick read, they will help you a lot in understanding what we are about to discuss.Lets begin then:The basic problem with our cameras is that it cannot differentiate between different subjects it views and tries to attain the same exposure for EVERYTHING.

The camera just looks at the frame and depending on the intensities of the subjects, determines an exposure setting so that the ENTIRE FRAME is exposed for 18% grey. Think of 18% grey this way; if white is considered 100% light and black is considered 0% light, 18% grey is somewhat in the middle. This is what the camera ALWAYS aims for correct exposure.

The Art of Exposure Compensation | Internal Mechanics of Camera Exposure. 2

I believe you would agree that absolute white snow and a dark black bear are not to be exposed the same way. The snow is supposed to look bright and white, while the black bear should look dark. Our cameras, however, do not understand this and hence the exposure problem.

When does this problem occur?You may now wonder if the 18% grey formula is so outdated and archaic, why do camera manufacturers still use it? The reason is quite simple actually.

The 18% grey rule DOES work most of the time. If you are a photographer who shoots average day-to-day life and not too much studio work, the rule does a wonderful job at exposing most of the pictures quite nicely.The real problem however comes up while shooting extremely dark or extremely bright objects.

For example, a snow-covered landscape or a black cat on a dark night. The basic problem that arises is the camera still tries to expose for the same 18% grey (no matter what it is shooting) and rounds up either underexposing the snow scene or overexposing the black cat.Let me explain why.

As I discussed earlier, the camera cannot perceive what it is looking at. All it can see are various colors and their intensities. So when shooting the snow-covered landscape, the camera looks at the scene and finds it too bright, it tries to bring DOWN the brightness (since it is trying to expose EVERYTHING in the scene for 18% grey) by underexposing the image.

Now the snow wouldnt look white but a little grey. It is the same deal with the cat. In the cat image, the exact opposite happens and the camera finds the black cat too dark and tries to bring it up to a grey undertone thereby OVEREXPOSING it.

The cat too in this case would look a bit grey and not black as it should.AdvertisementHere is the solution:Luckily for us, there is something that we can do. We can not only communicate to the camera that the desirable exposure is not what the camera is selecting for a particular scene, but also choose our own in the process.

This method is called exposure compensation.Now that you know exactly when these situations may occur when your camera light meter reading may be fooled and that may in-turn give you some wrong suggestions for exposure, let us jump in and learn exactly how you can fix it. Fixing the exposure:Before we learn more about the procedure to adjust exposure compensation, you must remember the following:Exposure compensation can ONLY be adjusted while using Semi-Automatic Modes, i.

e.Aperture Priority Or AVShutter Priority Or TVProgram ModeThe exposure compensation cannot be adjusted while using FULLY AUTOMATIC (God almighty, PLEASE for heavens sake get off that damn mode) or the FULLY Manual or M mode. The reason is pretty obvious.

While using the damn automatic mode you are letting the camera take all the decisions for you; so you are NOT allowed to make any changes. The opposite applies when you use the Manual mode, since now YOU are making all the decision and the camera is NOT allowed to override your settings, you have to decide how you want to adjust the exposure compensation. Changing the exposure compensation in manual mode has no effect.

How does exposure compensation work?Let me explain what happens when you adjust the exposure compensation. Suppose you are shooting the snow -covered landscape in Aperture Priority Mode and the snow just comes out UNDEREXPOSED and grey.

What you have to do now is dial down a few stops of exposure compensation (dont worry I will explain later when to dial down and when to dial up).Aperture Priority Mode lets you, as a photographer, set the aperture and in most cases the ISO. The camera in turn selects a suitable shutter speed that it thinks would expose the subject best.

Now when you decide that the snow is getting UNDEREXPOSED and dial down the exposure compensation, the built-in light meter of the camera readjusts its scale for you. If you dial down the exposure by say 2 stops; what the camera does is determine the exposure that it thinks is correct for the image and then OVEREXPOSE it by two stops. I know this sounds very confusing but trust me you will get the hang of it very soon after you use it a few times.

Read this paragraph one more time, you will need it. Try and remember the sequence.Since you are using Aperture Priority Mode here, the camera can independently set its own shutter speed.

The camera uses the shutter speed in this case to OVEREXPOSE the picture when you dial down the exposure compensation. Had you used say Shutter Priority, the camera would have then used the aperture to control and adjust the exposure. Now, if you think about it, it also makes sense why you cannot use the exposure compensation in FULLY automatic or full manual mode.

It works only when the photographer shoots in conjunction with the camera and not independently on his own. Fascinating, isnt it?The tip-off though:The images that you are trying to take may not always be a snowy landscape or a black cat, so how would you know if you need to adjust the exposure compensation on your camera?

Well heres howThe easiest and the most reliable way to check exposure and see if it is okay is to look at the histogram. NO, just looking at the LCD with your naked eyes is NOT good enough. The primary reason being that the LCD may look different in different scenarios like say under the sun, at night, if the LCD is not clean enough, variable brightness of the LCD and dont even try to ascertain exposure if you are working with many cameras at the same time by just looking at the screen.

The histogram is a MATHEMATICAL way of QUANTIFYING the data (about intensities of light) the camera just collected. In case you have not learnt anything in school, learn thismaths is hard but it is precise and accurate; so is the histogram. Just ask yourself the following questions and you will be able to figure out if you need to use exposure compensation:Are there any subjects in your frame which are quite bright or quite dark?

Take a shot and now look at the histogram. Does the histogram tend to gather up at the centerAdvertisementIf the answers to the questions above is yes, you need to adjust the exposure compensation. If you are shooting really bright or near white subjects; say a person with a fair complexion at the beach on a sunny day; the histogram should have a fair part of it accumulated at the right side of it since there is so many bright elements in the image.

If, however, the histogram seems to have all in the middle and a very little at the far right side; it means that the camera has considered the bright elements as too much light and cut down the exposure to bring all down to match 18% grey exposure settings.Rule of thumb:A good rule of thumb to remember is to look for the details. Nowadays if you are shooting RAW and are off by a stop or two you can fix it in post-production but anything more than that maybe irrecoverable.

What you should always be looking for when you are shooting are the details. Just after you take a shot, zoom in and check if the details are visible; especially if the subjects are too bright or dark. See if the weave patterns of a black cotton shirt is visible or if you could make out the feather textures of a white swan.

If however the shirt appears to be a giant black blob, double check the histogram like I asked you to; you may have an exposure compensation issue here.I did NOT discuss how to adjust your exposure compensation intentionally since it varies widely from camera to camera. In some cameras you have to change it through menus and in others, there are dedicated buttons which you can press and then use a dial to adjust it.

Please consult your camera manual for this.Lastly:Always remember there is NO such thing as CORRECT EXPOSURE. It all comes down to what YOU, the photographer wants.

You may want a high key photograph that is nearly all white or vice versa.The camera may wildly disagree with you on that but that doesnt matter. You are the decider, the decision maker.

The camera is just a tool which you use to bring your visualizations to life. So if you think that the camera is not exposing how you would like to have, tell it what to do. Because now you know how.

A little algorithm to remember easy:Bright Subject -> Camera Underexposing -> Dial DOWN exposure compensation.Dark Subject -> Camera Overexposing -> Dial UP exposure compensation. Hope you found this topic helpful.

I know it is a little hard to grasp all of it in one go. I suggest now that you have read the article; find scenarios where you may need to adjust the exposure compensation and then use it. After you use it a few times, re-read this article one more time and you will be all set.

So, go out there and shoot. now, now, now!Originally published at Seventh Light Studio RELATED QUESTION When approaching portrait photography, should one start studying natural light or studio lighting?

Theres no reason not to learn about any variety of lighting that interests you at the same time. If you feel that would be confusing, pick according to which type you find more attractive. Look for classes where you can try a variety of lighting set ups at once.

Often places that rent equipment will have studio lighting classes or trial opportunities. They will set up areas w things like: 5 light studio, single giant octagon, Try reflectors and take example shots between the quality of the light between the gold, silver, and white. You can incorporate that into set or natural light.

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Taigewang Technology Teaches You How to Choose the Most Suitable Parking System for You_ Taigewang T
Taigewang Technology Teaches You How to Choose the Most Suitable Parking System for You_ Taigewang T
At present, there are many kinds of parking lot systems with various functions. What type of parking lot system can meet your needs? According to the use occasions and the requirements for vehicle management, taigewang technology will briefly introduce the parking lot systems with the following functions for you. In recent years, with the improvement of people's living standards, the parking lot has been gradually upgraded from the original manual management to the intelligent parking lot management system for management. It has become very convenient not only from the entrance and exit, but also from the charge. First of all, the parking lot system has gone through the processes of IC card swiping, ID card swiping, Bluetooth remote card reading, license plate recognition and the current cloud parking lot system, which makes the functions of the current parking lot system so powerful. However, there will be some differences when purchasing the parking lot system according to your use occasion and on-site vehicle management. The IC card swiping and ID card swiping parking lot system is mainly used in some parking lots with few in and out vehicles and more foreign vehicles. For foreign vehicle owners, as long as they pass the ticket box or manually issue cards at the entrance, the gate can directly lift the pole. At the exit, the administrator can calculate the parking time and payment amount only based on the cards obtained by the owners at the entrance. The Bluetooth remote card reading and license plate recognition parking lot system is mainly applicable to parking lots with many vehicles. The main feature is that the traffic speed is fast when entering and leaving the parking lot. The owner can directly read the card remotely at the entrance through the Bluetooth card reader or recognize the license plate of entering and leaving vehicles through the license plate recognition system, and the gate will automatically lift the lever; At the exit of the parking lot, the parking lot administrator can compare the vehicle information identified by the system at the entrance. According to the comparison information, the system can automatically release the vehicles. According to the nature of vehicles entering and leaving the parking lot and some characteristics of the parking lot itself, when choosing to install the parking lot system, we must choose a regular manufacturer to do some schemes and configurations. In addition, the use method and maintenance of the parking lot management system must be reasonable, so as to prolong the service life of the parking lot system.
Strengthen the Application of Parking Lot Management System to Realize the Planning of Parking Lot_
Strengthen the Application of Parking Lot Management System to Realize the Planning of Parking Lot_
In recent years, with the rapid growth of motor vehicles in China, there is a huge demand for parking facilities and parking. In order to further improve people's parking environment and effectively alleviate the parking difficulties in some key areas, in addition to vigorously building parking areas, it is also necessary to strengthen the application of parking lot management system and improve the utilization efficiency of parking resources. It is understood that in addition to strictly implementing the parking space allocation standards, we encourage some old communities, hospitals, schools, qualified commercial and office intensive areas, parks, sports venues and exhibition halls, as well as disorderly parking, which seriously affects the traffic in the area and other key areas to build public parking lots, which has alleviated the current parking problem. Recently, it was learned from Kunming Transportation Bureau that the following seven places in Kunming can be planned preferentially: 1. Public parking lots for capacity expansion, three-dimensional transformation and mechanized transformation of existing parking lots. 2. Public parking lots built on the free land of Party and government organs, schools, hospitals, shopping malls and other enterprises and institutions. 3. Use the land reserved by the government to build temporary mechanical public parking lots; For idle plots that cannot be commercially developed within the main city, apply for the construction of temporary public parking lots. 4. In the residential area where conditions permit, the newly-built or reconstructed (expanded) public parking lot shall be opened to the outside world with approval and priority to meet the parking requirements of the owners of the residential area. 5. The contradiction between parking demand is very prominent, but the current situation does not meet the conditions of the old community. 6. The owners of idle plots, new public green spaces and squares within the third ring road use the underground space to build public parking lots, and carry out three-dimensional transformation of the existing plane parking lots of major hospitals. 7. Encourage the use of planned and existing public and protective green spaces, squares, roads and other underground spaces, space under viaducts and underground civil air defense projects to build public parking lots. Improve urban parking facilities, strengthen parking management, cancel temporary parking belts in places with large traffic flow or peak hours, adjust traffic flow and improve the utilization and turnover rate of parking spaces. In addition, strengthen the use of parking lot management system in major parking places, so that information sharing can be realized among parking lots, promote the integrated development of parking and Internet, support the development and promotion of Internet parking applications on mobile terminals, encourage car owners to carry out parking query, book parking spaces, realize automatic billing and payment, etc, Effectively improve the utilization efficiency of parking resources and greatly reduce the waste of time caused by parking.
License Plate Recognition Technology Is Widely Used in Many Fields of Intelligent Transportation_ Ta
License Plate Recognition Technology Is Widely Used in Many Fields of Intelligent Transportation_ Ta
In recent years, intelligent transportation in China has developed rapidly, and intelligent transportation technology has made great progress. The biggest function of intelligent transportation is to collect complex traffic conditions through monitoring products, and guide the normal and standardized operation of traffic through the identification and analysis of computer technology and image recognition. This recognition technology of processing real image data is of great significance to social progress and people's convenient life. Image recognition technology has been widely used in vehicle access management, which brings great convenience to people's travel. License plate recognition technology can efficiently and conveniently manage the entry and exit of vehicles and the storage and transfer of vehicle information data. The following describes the application of license plate recognition technology in many fields of intelligent transportation. 1、 The application of intelligent community, business center, entrance and exit of parking lot, community entrance and exit and parking lot license plate recognition technology is mainly used to record the license plate number, license plate color and access time of vehicles, so as to realize the automatic management of vehicles, so as to save manpower and improve efficiency; It can automatically compare foreign vehicles and automatically charge foreign vehicles. It can also be combined with the vehicle dispatching system of relevant transportation departments to automatically record the access information of vehicles. The time for manual recording of vehicle information on paper is saved, and the management efficiency of parking lot system is greatly improved. 2、 Toll stations of traffic roads at present, China's expressway construction has developed rapidly and the system is very perfect. There are toll stations at all traffic intersections. The license plate recognition technology can well manage and automatically record the incoming and outgoing vehicles, and can identify the license plate information of vehicles in different places or in the past through the Internet, which plays a good role in standardizing and managing traffic vehicle violations. 3、 With the rapid urbanization of urban traffic checkpoints, big cities are often full of vehicles. In order to effectively manage the normal traffic of urban vehicles, there are many traffic checkpoints in major traffic sections. As a necessary basis for vehicle illegal punishment, license plate recognition technology can automatically detect and identify vehicle license plates in video, It can capture various road violations such as running lights and occupying roads. Taigewang technology license plate recognition technology has been well used in parking lot and intelligent transportation, and has solved many problems for customers. License plate recognition technology will be more and more favored by the industry.
Give Full Play to the Advantages of Intelligent Parking Lot System to Meet the Parking Needs of Diff
Give Full Play to the Advantages of Intelligent Parking Lot System to Meet the Parking Needs of Diff
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License Plate Recognition Parking Lot System Is Widely Used, Which May Replace Card Swiping in the F
License Plate Recognition Parking Lot System Is Widely Used, Which May Replace Card Swiping in the F
License plate recognition parking lot system is more and more widely used in our daily life. Whether it is some large shopping malls or some communities, it is gradually used on a large scale. The so-called license plate recognition is to capture the license plate numbers of incoming and outgoing vehicles through full video license plate recognition technology. It can upload vehicle information data in real time. Some studies have said that the license plate recognition parking lot system may replace the traditional card swiping parking lot system and lead the development trend of the intelligent parking lot system industry. The card swiping parking lot system uses temporary vehicles to pick up the card at the entrance ticket box or fixed vehicles to swipe the card to enter and exit the parking lot through the monthly card issued by the parking lot management personnel. Compared with the license plate recognition parking lot system, the security is low, the management cost is high and the traffic speed is low. Compared with the card swiping parking lot system, the function of the license plate recognition parking lot system is more magical. At the same time, the license plate recognition parking lot system can capture the images of vehicles entering and leaving the parking lot, and upload the information of vehicles entering and leaving the parking lot to the database in real time, which effectively ensures the parking safety of vehicles. The license plate recognition system has a high recognition rate, and the vehicle information entering and leaving the parking lot is unique. For the parking lot, there is no need for personnel to participate at the entrance. The license plate recognition parking lot system can automatically open the gate for the entering vehicles through license plate recognition, reducing the labor cost. However, the card swiping parking lot system is different. It needs special personnel for card management, At the same time, the owner's card information is often easy to be copied by others, which is also a headache for parking lot managers. License plate recognition can well avoid this phenomenon.
Install the Automatic License Plate Recognition System of the Parking Lot and Eliminate the "in and
Install the Automatic License Plate Recognition System of the Parking Lot and Eliminate the "in and
In order to alleviate the congestion of the connecting sections of urban trunk roads and urban roads and eliminate the difficulty of entering and leaving the parking lot as soon as possible, the installation of license plate recognition system in the parking lot can change the traditional access management mode, eliminate the time for vehicles to swipe their cards in and out of the parking lot and speed up the traffic speed of vehicles. With the development of technology, we should break the traditional management mode, timely adopt advanced technology and equipment, promote the development of the original manual charging management of the parking lot to the intelligent direction, strengthen the management of the parking lot, and solve the problem of parking difficulty by changing the management mode of the parking lot. At present, the parking problem has seriously affected people's life and greatly hindered people's driving. Therefore, intelligent traffic management will be the general direction of traffic development in the future. License plate recognition parking lot system has been greatly developed in the parking lot. Compared with the all-in-one card system, license plate recognition has obvious advantages, which makes it easier for vehicles to enter and leave the parking lot. Firstly, compared with the all-in-one card, the license plate recognition parking lot system eliminates the work of card management; First, the card cost of the all-in-one card system is too high, which requires a lot of personnel to manage. Second, cards are easy to lose. For property managers, they need to register, cancel and change cards constantly, which not only wastes time, but also wastes capital cost. Secondly, the license plate recognition parking lot system can work normally in case of power failure, while the all-in-one card can not manage the vehicle in case of power failure. Finally, one of the most obvious advantages of the license plate recognition parking lot system is that it can enable the owner to enter the parking lot directly without parking and swiping his card. When leaving the parking lot, he can judge whether to release or not by comparing with the incoming vehicle information. In view of these special functions of license plate recognition parking lot system, it has been widely used in parking lot in recent years. With the increasing maturity of license plate recognition parking lot system technology, continuous upgrading of technology, continuous optimization of products and continuous improvement of recognition rate, at the same time, it can enable car owners to directly enter the parking lot without parking card swiping time, which effectively alleviates the difficulty of entering and leaving the parking lot, and will certainly become the development trend of the parking lot in the future.
What Are the Functions of Intelligent Parking Lot Systems in the Internet Era_ Taigewang Technology
What Are the Functions of Intelligent Parking Lot Systems in the Internet Era_ Taigewang Technology
Today, when the Internet is so developed, the parking lot system uses Internet technology to make the parking lot management more convenient, both in terms of charging and parking. At the same time, after the parking lot system uses Internet technology, its functions have increased a lot, such as parking space guidance and parking guidance, which makes it more convenient for people to park. In the previous manual charging parking lot, the administrator should record the time when the vehicle enters the parking lot, the information of the vehicle and the time when it leaves the parking lot, then calculate the parking time, and finally calculate the payment amount according to the parking time. When the rush hour is felt, the administrator should keep recording the vehicle information at the entrance and exit of the parking lot. When there are many vehicles, it is easy to make mistakes, So the efficiency is very low. The management of traditional parking lots is more chaotic. After entering the parking lot, car owners will turn around in the parking lot to find parking spaces. Sometimes when they see a parking space far away from themselves, they want to find one closer; What's more, after a long time in the parking lot, I found that there was no spare parking space in the parking lot, which not only delayed the parking time of the owner, but also increased the workload of the parking lot administrator. Now many parking lots begin to adopt intelligent parking lot management system. Through Internet technology, people can not only understand the information of a parking lot, but also understand the parking space information and charging situation of several surrounding parking lots, and can query the information of data reports in real time. The intelligent parking lot management system adopts networking technology to realize the functions of parking space reservation, parking space guidance, parking guidance, reverse vehicle search and mobile terminal payment, so that the owner can book the parking space before entering the parking lot to avoid finding that the parking lot is full after entering the parking lot; Secondly, after coming to the parking lot, the owner can find the location of the reserved parking space through parking space guidance according to the location of the reserved parking space; Finally, when the owner returns to the parking lot to pick up the car, he can easily find the location of his car by inputting the license plate number of his car or the time of entering the parking lot according to the reverse car search system, so as to avoid finding the location of his car after people return in some large parking lots. One of the most important functions of the intelligent parking lot system is to solve the problem of arbitrary parking charges. The parking lot system can automatically calculate the payment according to the information of vehicles entering and leaving the parking lot. In this way, the parking lot administrator only needs to collect the parking fee according to the payment amount prompted by the system, Finally, the parking lot administrator can download these charging reports in the parking lot charging system for query, so as to avoid the error of manual charging.
What Are the Parts of Community Entrance and Exit Management_ Taigewang Technology
What Are the Parts of Community Entrance and Exit Management_ Taigewang Technology
The entrance and exit management of the community is divided into two parts: personnel management and vehicle management. The first is personnel management: with the wide promotion of biometric technology and the maturity of system integration, personnel channel management can adopt IC card, ID card, fingerprint, QR code, face recognition, human body recognition and other authentication methods. After residents enter the community, owners and residents can automatically identify. After being identified and confirmed by the system, the owner does not need to manually identify the entry, and the gate will automatically open and light the corresponding floor. The personnel intelligent access control system aims to prevent unauthorized personnel from entering, facilitate the access of the owner, and calculate the number of people entering and leaving the community. Based on biometric applications such as face recognition, it provides safer and more convenient travel modes for owners and visitors. The second is vehicle management: the intelligent parking lot system can not only identify vehicle information and control vehicle passage, but also manage incoming and outgoing vehicles and help residents Park and find vehicles quickly. It mainly integrates radio frequency identification technology and video identification technology, establishes an intelligent monitoring bayonet, and collects the owner's license plate information in advance. The entrance and exit system supports efficient vehicle identification and gate release, and supports the release of the visitor's pre registered license plate information without re verification, and pushes the visitor's access information to the respondent's visual walkie talkie. It not only changes the single identification method, but also realizes the interaction between personnel, vehicles and bayonets, and can access the social security system to facilitate public security inspection. More importantly, it improves the accuracy and timeliness of cracking down on vehicle illegal activities. Better safeguard social stability.
What Is the Access Control System? What Are the Brands of Access Control Systems at Home and Abroad_
What Is the Access Control System? What Are the Brands of Access Control Systems at Home and Abroad_
Access control system is an important branch in the field of security. Security is mainly composed of video monitoring system, access control all-in-one card system and perimeter alarm system. Parking lot system, access gate system, entrance and exit access control system; These management and control technical means commonly used to manage the access of vehicles and personnel are the specific application of access control system. Access control technology involves many high and new technologies, such as mechanical transmission, electronic information, automatic control, computer processing, communication transmission, biometrics and so on. It is mainly used in banks, hotels, parking lots, confidential rooms, intelligent communities, business centers, office buildings, etc. So what are the brand manufacturers of access control system at home and abroad? 1. Honeywell access control system, an American enterprise, a global security giant and a world top 500 enterprise, has rich experience in manufacturing electronic security products. 2. Bosch access control system is a German enterprise, a world top 500 enterprise, a leader in security and communication industry, a global comprehensive multinational group, product system and its stability. 3. Ingersoll Rand access control system (Ingersoll Rand (China) Investment Co., Ltd., a leading diversified multinational industrial company in the world, a world-famous brand and one of the first foreign-funded enterprises to enter China) 4. Jieshun access control system. Shenzhen company, with rich experience in the access control industry, complete product series, older qualifications, domestic access control brands and high prices, Shenzhen Jieshun Technology Industry Co., Ltd. 5. Taigewang technology access control system. Shenzhen local enterprise, double high certification (national high-tech enterprise, Shenzhen high-tech enterprise), a rising rookie brand in the field of access control parking lot, and the first independent and successful manufacturer of Taige Wangyun parking lot platform in China. Taige Wangyun product series is deeply welcomed by the market.
The Parking Lot System Combines Internet Technology to Provide More Intelligent Life_ Taigewang Tech
The Parking Lot System Combines Internet Technology to Provide More Intelligent Life_ Taigewang Tech
In the past two years, the parking lot system has combined some technologies of the Internet to integrate parking space query, reverse car search and self-service payment, which has made a qualitative change in the use of the parking lot system in the parking lot, making it more convenient for people to park and providing people with more intelligent life experience. Compared with the traditional card swiping parking lot system, the intelligent parking lot system uses license plate recognition technology and Internet technology to manage the vehicles entering and leaving the parking lot. License plate recognition technology is one of the most effective ways to solve the difficulties of vehicles entering and leaving the parking lot at present. The owner avoids the cumbersome steps of parking and card collection, and enters and leaves the parking lot at will through license plate recognition, It solves the problem of waiting in line and has been well applied in major parking lots. The use of Internet technology in the parking lot is the most advanced user experience at present. It makes full use of the convenience brought by mobile Internet technology to people's life. People can view the use status of parking spaces in the parking lot in real time through mobile phone mobile terminal. In view of the current parking difficulties, they can also carry out online reservation of parking spaces, route navigation and other functions, After parking, in order to avoid the cumbersome process caused by manual charging, we can pay the parking fee through the mobile terminal, and concentrate the previous manual management process on the mobile terminal through Internet technology. In this era of information explosion, the application of mobile Internet technology in the parking lot system, combined with the parking needs of users, Provide a more intelligent parking experience. The combination of parking lot system and Internet technology can be said to change the parking lot management from manual management to unmanned management. Similarly, intelligent management also makes the parking space utilization rate of the parking lot higher and solves the demand of the contradiction between vehicle supply and demand.
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