one,Principles of mobile phone navigation

mobile phone navigation is divided into work through GPS modules, navigation software, and GSM communication modules to complete.

1. GPS module completes data collection such as search tracking and positioning speed of GPS satellites.

2. The navigation software map function obtains the location information of the GPS module and constantly refresh the electronic map, so that we constantly move our position on the map.

3. navigation software path guidance calculation function, plan a walking route that reaches the destination according to our needs, and then guide us to walk towards the destination.

4. The GSM communication module completes the communication function of the mobile phone, and can process the collected GPS data according to the mobile phone function and upload the designated website.

2. precautions

mobile phone navigation is that the mobile phone must have general communication functions and navigation functions. There are many mobile phones with navigation functions. The key to buy navigation mobile phones is to pay attention to the following points:

1. Whether the screen is large enough, because the screen is small, it can't be seen clearly, it is inconvenient to use.

2. Whether there is an electronic dog function. The so -called electronic dog function is the reminder function of the monitoring system. It can remind you how many meters in front of you have speed measurement monitoring in front of the vehicle.Do not run through the red light, and so on, which is very practical.

3. The map should be able to update, because the roads will change each year, such as new roads, adjustment of single and double lines, etc., so the map of navigation in the mobile phone must be changed, otherwise it will be inconvenient.

4. Determine whether it is a GPS mobile phone, or an A-GPS mobile phone, the GPS mobile phone is high accuracy, and the A-GPS mobile phone accuracy is slightly lower.

5. Confirm whether the mobile phone navigation will generate other costs during use, such as network traffic fees or GPS software usage fees.

3. Common mobile navigation providers

Figure Bar navigation

The first batch of Beijing Tu Bar Technology (Beijing Tu is Xian Technology Co., Ltd.), which has obtained electronic map licenses. It is the most professional electronic map service provider in China. It was established in 2004. It is a leading industry in the industry that is jointly invested by well -known internationally renowned venture capital institutions.High -tech enterprises.Tu Bar Technology has established a well -known electronic map brand -Tu Bar, and has achieved international professional standards in mobile maps, navigation products and services.The map bar establishes the industry's largest update and timely map information (POI) database and bus line database to fully meet the query and line inquiry of various living information of users.With the significant characteristics of online high -speed browsing, quick query, accurate lines, navigation optimization, and comprehensive data.

Kaelid navigation

Kaelid is a high -tech enterprise based on geographical information data, based on land resources, system platforms, and navigation systems as the three major business pillars.Essence

In the field of GIS applications, Kaelid uses the original space information processing technology to help customers understand the value of geographical information with data visualization and visualization of thinking and make visionary decisions.According to international software engineering standards, Kaelid has developed I-Spatial platform with independent intellectual property rights, X-Bridge, and e-government platform X-Bridge. On the basisProducts; on the basis of geographical information data, Kaelid took the lead in extending business scope from government decision -making support, industry applications to personal GPS navigation applications, and continued to lead the development of the industry.

Gaode

Gaode is the leading domestic digital map content, navigation and location service solutions.Since its start in 2002, various businesses have developed rapidly and have been successfully listed on the Global Seasteak Global Market in the United States on July 1, 2010.

Based on the national and high -quality navigation map database, Gaode accumulates innovation in product, services and business models with rich technical accumulation, and builds a "map cloud service" platform that can cope with various customer types and product forms.Gradually formed a strategic business structure of "four screens and one cloud".The company will closely seize the huge opportunities brought by the mobile Internet for the location service industry. Relying on the leading position in the automotive navigation market, we have strongly entered the public application and service market, and strive to achieve the strategy of establishing a "mobile life service portal".

Tencent Map

On July 9, 2014, Tencent Map officially released the "zero traffic map", covering the two mobile platforms of Android and iOS, becoming the first map product in the industry to achieve real zero traffic and full offline.Use the problem of the map.

China Mobile

"China Mobile's mobile phone navigation" is a mobile navigation client software launched by China Mobile. It provides location -based travel information services, including the current or designated locations of maps, information query, bus or driving route inquiry and guidelines.Practical display, real -time traffic road conditions, positioning family positions, one -click traffic and other practical services.

Disclaimer: The above method stems from the index of the program system or the sharing of netizens. It is for your reference only and does not represent the research perspective of this website. It proves that it is valid. Please pay attention to the authenticity and authority of the source of the content of the content.Apply to delete & gt; & gt; error correction & gt; & gt;

Composition of GPS monitoring platform

1, car terminal

The vehicle terminal equipment includes: control unit (CPU), display unit (optional), GPS, GPS antenna, GSM mobile phone (or other communication modules), anti -theft alarm, etc.There are mainly anti -theft alarm, navigation, calling and other functions.

2Wireless data link

Wireless data transmission equipment is an important part of the entire vehicle scheduling system as the hub of the base station and each mobile target. The choice scheme includes the following: I, public network equipment: GSM, CDMA, CDPD (wireless data public publicnet).. Cluster communication: 350m and 800m cluster systems used in public security.III, conventional radio: use special channels and wireless MODEM.

3, Monitoring Center

The equipment composition of the monitoring center includes: database, monitoring terminal/GIS terminal, business processing terminal, and front -end access equipment.Staff can monitor the movement of all mobile targets through the network through monitoring the system.The key is the database construction, electronic maps, and application software-Mis, which is closely related to business content to achieve main functions such as vehicle scheduling, monitoring alarm, and information query.

The functions and characteristics of the GPS monitoring system

1As well asGPSMonitoring function

(1) Real -time video monitoring

The monitoring center can monitor the vehicle remotely in real time,GPSWireless video server (single card/ /Double card) Support multi -way video remote browsing.

(2) Video storage playback

(3.GPSAlarm linkage

GPSThe alarm linkage mainly includes an external alarm button, that is, the driver can report to the monitoring center when the driver encounters an emergency during driving.The second is two -way voice calls.

(4.GPSposition

built-inGPSYou can track the motion trajectory of the vehicle and fully understand the operation.

2As well asGPSMonitoring characteristics

The monitoring system supports monitoring through a variety of terminals, mainly includesPCWaiting for clients, TV walls, mobile phone terminals, and remote video browsing, remote control, multi -screen monitoring, manual video, video playback and other functions.

(1) Monitor the client

The monitoring center is connected to telecommunications through the dedicated lineIDCIn the computer room, customers can browse and cameras at each monitoring pointPTZControl and other functions.

(2) mobile phone monitoring

Monitor the client software through the built -in monitoring of the client software3GThe mobile terminal realizes remote video browsing, remote cloud mirror control, video screenshots and other functions to meet the needs of customers' remote video viewing and remote emergency command.3GCustomers provide video surveillance services anytime, anywhere.

also,GPSThere are other characteristics of monitoring.First, distributed monitoring, centralized management, intelligent settings, and humanized operations.The second is the integrated design of wireless video servers with high system reliability.The third is to adopt dual -code flow technology, local video adoptionD1Resolution, network transmission adoptionCIF/QVGAResolution.The fourth is to adoptH.264The method of compressing coding, support multi -road video access at the same time, each video is in8~10Frames, the video is clearer.Fifth, wireless network transmission, China Mobile3GThe upward bandwidth can be reached1.8mbit/sEssenceSixth, the system has strong expansion capabilities.

GPSThe monitoring and management system will be out of time, time, arrival time, return time, parking time, speeding time, fatigue driving, trajectory analysis, late management, outlet management, line management, mileage statistics, fuel consumption management, fuel consumption management, fuel consumption management, fuel consumption management, mileage, mileage, mileage.Data statistics and other businesses conduct report analysis.To realize the humanized management model, bring more returns to enterprises!"Vehicle Manager" monitoring and positioning system has become it3GThe mainstream of the times, it serves every car owner with the spirit of responsibility, trustworthiness, refinement, and innovation to solve the troubles of car use!

Disclaimer: The above content is derived from the provision of the program system index or the sharing of netizens. It is for your reference only and does not represent the research perspective of this website. Please pay attention to the authenticity and authority of the source of the content of the content.Apply to delete & gt; & gt; error correction & gt; & gt;

[electronic dog Buy] electronic dog Buy Budian electronic dog navigation Selection skills

Perhaps for some car owners, I do nt know how to buy car radar navigation products, but do nt worry, let the experts support us, and talked about the five aspects of purchase points.

electronic dog navigator selection machine

1. Choose the brand ---- quality and after-sales are guaranteed

The various GPSs are full of the GPS market, so that consumers do not know how to choose, especially the appearance of miscellaneous cards and cottage products, and attract consumers with low prices as bait. Friends who can use such products are deeply touched.There is no guarantee in terms of service. Once a problem occurs, it can only be dumb.

Big brands are the most assured choices. From the quality of the product to the brand's service, users can guarantee it. Once there is a problem, it can be solved for you.Although the price is more expensive, the brand has spent a lot of manpower, material, energy, and financial resources in all aspects such as R & D, production, service, and marketing.There are noble truths.

2. Whether to pass the quality inspection of the national authoritative institution

Choosing GPS not only depends on the brand, appearance, and functions, but also pay attention to its hardware quality. The reason why miscellaneous and cottage GPS is cheap is precisely because of the original inferiority, minimizing the cost as much as possible, in LCD screens, GPS chips, motherboards, motherboardsIt is difficult to guarantee the processor and other aspects, and the quality of this machine is evident.

The hardware configuration of the brand GPS is more formal, and it must pass the ISO quality production standards (mainly ISO2000 quality certification, ISO14001 environmental certification) and other certifications.Therefore, the quality of the accessories they use can be guaranteed, which improves the overall quality of the product.

3. Whether to adopt a mature plan

The reason why the miscellaneous cards and cottage GPS are cheap because they have adopted a low price solution. The performance of this solution is unstable and prone to quality problems.Buying products with stable performance can ensure quality. Consumers who buy this product can use it with confidence.

4. Function configuration:

Product functions are one aspects that riders value very much. With the development of GPS, various entertainment functions have been implanted in products, such as digital TV, MP3, MP4, MP5, e -books, games, etc.In terms of practical functions, such as navigation, fixed speed measurement, flow speed measurement, real -time road conditions, Bluetooth, FM launch, reversing vision, stock securities, stock securities, etc. are also very important.Consumers must consider their own needs when buying GPS. Although the miscellaneous cards and cottage GPS can be implanted in these functions, due to the inferiority of hardware and backward solutions, it will greatly affect the function of the function, such as searching for Xingxing, such as XingxingSlow, inaccurate positioning, inaccurate speed measurement, poor TV signals, and so on.

5. After -sales service and map upgrade:

Electronic products will inevitably fail, and after -sales service is very important. Large brands have an excellent after -sales service system. Once a problem occurs, it can be solved for you. There is no after -sales service at all.The riders cannot be resolved at all.Consumers should choose navigation maps with simple operation, convenient use, and complete data when buying GPS.

How to install and use the car GPS positioner

1. Find a thread

Consume whether the required terminal accessories and wiring tools are complete.

There are only 3 lines of the simple GPS positioner that need to be connected, so find out the few lines of the bold font in the car first.

GPS positioner red line car power supply positive pole

GPS positioner black line car power supply negative electrode

GPS positioner white line car ACC/key line (detect the engine switch status, must be connected)

2. Install the SIM card

Many friends do not understand why the GPS positioning system should install a mobile phone card. In fact, the SIM card plays an important role in the GPS positioning system. Simply putThe GSM network transmits positioning data to the specified background in the form of GPRS, and finally forms a positioning monitoring system.

Note: Please make sure that the GPS positioning terminal is inserted into the SIM card without power power, and it is easy to burn card.

After SIM is installed, please turn on the spare power switch (on the side), and confirm that SIM will not loosen.

3. Wiring

After installing the card, go back to the first step.Install the line order of various colors to ensure that the joints are not loose or water.Please use the standard car circuit wiring method to connect the wiring process. Do not perfunctory.Instead of wiring, on the one hand, it is easy to make the GPS locator fail to work, and there is a hidden safety hazard for short -circuit fire.

The wire head should be protected with a thermal Tube to ensure that it is not easy to fall off and not inlet.Then bundle it with a waterproof tape and tied with the original car line.

4. Terminal fixation

The GPS positioner is small and easy to conceal.The common fixed position is to remove the main driving/co -driver front baffle. In its internal space, there are underground seats, trunk and other places.On the one hand, it is ensured that the GPS antenna can receive satellite signals normally, and it can ensure that the vehicle is not easy to enter the water and causes the terminal to burn.

Notice:

(1) The GPS antenna (such as the lower black block) signal is easy to be blocked by mixed soil and metal substances, and plastic, human body, fabric, etc. have no effect.Therefore, when fixed, make sure that there is no metal substance cover above the signal receiving surface to ensure that the receiving surface can be facing the sky upwards.It brings fixed flatness through the magic sticker or plastic tie, so that it will not fall off in long -term use.

(2) When the GPS positioner is fixed, there is no distinction between up and down. The terminal can be fixed and fixed through the magic sticker and tie.There will be abnormal noise.

5. activation

After all the above steps are completed, the vehicle is restored.Then activate the license plate number, terminal ID, SIM card number and other information to the Bo Shi customer service personnel, so you can locate the vehicle and manage the vehicle in the computer, mobile phone, and WeChat.Since then, the installation of the GPS positioner is completed.

Disclaimer: The above method stems from the index of the program system or the sharing of netizens. It is for your reference only and does not represent the research perspective of this website. It proves that it is valid. Please pay attention to the authenticity and authority of the source of the content of the content.Apply to delete & gt; & gt; error correction & gt; & gt;

[Electronic hot and cold box] The characteristics and use of the knowledge hot and cold box of electronic hot and hot boxes

Hot and cold box

Different types of products are divided into different types, including plastic, foam, metal, wooden, etc. of various insulation boxes.

Hot and cold box product structure

The hot and cold box mainly uses food-grade environmentally friendly LLDPE materials. After one molding and refined by the world's most advanced-rotating mold pressure process, it is equipped with marine stainless steel locks, and the bottom is equipped with rubber anti-slip pads., Anti -ultraviolet rays, not easy to change color, Smooth surface, easy cleaning, good thermal insulation effect, not afraid of falling, can be used for life.The product is used with ice packs, and the cold effect exceeds the United States industry standards.Continuous refrigeration and thermal insulation time can reach several days.

Hot and cold boxInsulation effect

Put the ice bag in -20 C in the freezer of the freezer of the freezer for 24 hours to fully cool. According to the standard configuration, the temperature in the foam Insulation box can reach 90 hours below 8 C. It is suitable for various medium and long-distance low-temperature drug transportation.

Features of electronic hot and cold boxes

During the heat resistance: hot and cold boxes have high requirements for heat resistance and cooling resistance. They will not deform in high temperature water, and can even be disinfected with boiling water.

Durable: It must have superior impact resistance. It is not easy to crack during heavy pressure or impact. It will not leave scratches and can be used for life.

Seal: This is the first point to choose a fresh -keeping box.Although different brands of product sealing methods are different, excellent sealing is a necessary condition for long -lasting fresh food food.

Fresh preservation: The international sealing measurement standard is evaluated by transmitting humidity testing. The high -quality fresh -keeping box is 200 times lower than the humidity of similar products, which can maintain the freshness of things for longer.

Multi-functional and diversity: For life needs to design different sizes, with reused use of technology ice packs, ice packs can be kept cold and can be kept heat (the lowest ice bag can be frozen to -190 C, up to 200 C, can be arbitrarily arbitrarily, can be arbitrarily arbitrarilyCutting size)

Environmental protection: Food -grade environmentally friendly LLDPE materials, non -toxic and tasteless, anti -ultraviolet rays, not easy to change color

Electronic hot and cold box use

I. Biomedical: Alpine, hepatitis B immunoglobulin, propion globulin, vaccine, etc.;

Second, insulin: RI, Nuohe Ling series, Ganshinlin series, Nuohe Rui, Youbale, Youba Tai-25;

Third, live bacteria: Peifang, Siliankang, etc.; 4. Interferon, sodium heparin, tetanus antitoxin, growing elastin, octotide, etc.;, Cefbal, Liqitin, ammonia -deaconin, fillecin, and pyramidis;

5. Serum, enzyme preparations: hemogense, hemostasis, antivirus snake serum, etc.The above medicines or other drugs that have been stored between 2 C and 8 C can be stored and carried;

6. Other categories: It is suitable for long -term refrigeration and preservation of any items, suitable for Outdoor leisure activities such as Camping, outing, fishing, and drift; it can also be suitable for medical sampling, sampling, biological preparation low temperature transportation, blood transportation, etc.!It can also be used to save items that need to be kept during shopping!

precautions:

1. When moving the drug refrigerated box, the angle of the upper and lower, left and right tilt cannot be greater than 45 and cannot squeeze the box and door body to prevent deformation from affecting the performance of the drug refrigerated box.

2. Pay attention to the flatness and stability when placing the drug refrigerated box.

3. When placing the drug refrigeration box, avoid sunlight and stay away from the high temperature and high humidity environment to prevent the drug refrigerated box from failing or moisture rust.

4. Put the medicine refrigerated box as much as possible in a good ventilation environment. It is strictly forbidden to block the ventilation port of the machine. This will damage the machine and damage the drug due to poor ventilation.

The warm and warm box brand & gt; & gt;

precautions

1. clean the drug refrigerated box, wipe it gently with some neutral detergents with soft cloth, and then wipe it with water. Do not use dirt, gasoline, acidic or alkaline detergent, chemical cloth, banana water, acetone, oil, oil, oil, oil, oilwait.

2. The door seal is easy to accumulate, and it should be wiped out frequently.

3. When the drug refrigerated box is not used for a long time, wipe the inside of the box clean. After the inside of the box is fully dry, close the door of the drug refrigerated box.

cleaning and maintenance

1. Foods remaining inside the refrigerator are prone to cause bad odors. The refrigerator must be cleaned regularly.

2. Open the upper cover and clean and wipe it with a soft towel or sponge dipped in warm water or neutral detergent.

3. After using a detergent, clean it with water, and then dry it with a dry cloth.

4. We must often remove the dust on the top of the refrigerator to avoid affecting the aesthetic effect.

Product use

The hot and cold box is used for high and low temperature reliability tests.Components and materials of electronic and electronics, automotive motorcycles, aerospace, rubber, plastic, metal, Ship weapons, colleges and universities, scientific research units and other related products check their performance indicators under high and low temperature changes.

Refrigeration system

The refrigerator uses the French original "Taikang" fully closed compressor.

The frozen system is designed by unit or dual -type low -temperature circuit system.

The multi -wing -wing ventilator strong air supply cycle is used to avoid any dead ends, which can make the temperature distribution in the test area uniform.

Wind roads have a wind backwind design. The wind pressure and wind speeds meet the test standards, and the temperature of the door can stabilize the time quickly.

Heating, cooling, and completely independent systems can improve efficiency, reduce test costs, increase life, and reduce the failure rate.

Technical parameter

Temperature range: 0, -20 , -40 , -60 -70 ~ 100 (150 )

Temperature volatility: 0.5

The temperature uniformity: 2

Specification size model size

10L 51.5*24*25.5cm

45L 75.5*33.5*38cm

12L 41*28.5*28.5cm

18L 44.5*29.5*33cm

28L 57*37*36cm

Introduction to foam hot and cold box

The foam Insulation box is the outer packaging made of foam for preservation and fresh -keeping

Outer size: 50cm*36cm*30.5cm

Internal size: 42cm*28cm*22cm

Cover thick: 5cm

Wall thickness: 4cm

Density: 700G

Materials and characteristics

Hair -available polystyrene foam plastic is a new central policy packaging material, insulation material.It has the advantages of light gravity, impact resistance, easy to form, beautiful shape, bright color, high -efficiency energy saving, low price, extensive use.