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1. Driving school wireless network transmission application
As many domestic motor vehicle driving schools and test centers have updated their driver’s license electronic test and test center network systems, the reliance on the network in motor vehicle driver’s license teaching and testing has become stronger and stronger, especially the wireless broadband network, which is an important communication supporting driver’s license teaching and testing. system.At present, many driving schools and test venues in China are already in use based onWi-FiThe standard wireless broadband network is used in the main links of simulation teaching, field test (subject 2), road test (subject 3) and so on. Wi-Fi technology has been adopted by the domestic driving school industry and developed rapidly due to its wide spread of standards, good compatibility of equipment, 802.11n high-bandwidth technology, and cost-effective advantages.
Compared with the 3G network provided by the operator, building a Wi-Fi network transmission system has many advantages: it saves a lot of long-term leased line costs, provides a stable and reliable wireless network link, and supports video, voice and multi-protocol data at the same time For transmission, the bandwidth and access capacity of a single base station are comparable to those of non-3G networks, and it has good application expansion capabilities. Beijing Huaxin Lianchuang Technology Co., Ltd. (BHU Networks) has launched the Boxun® seamless roaming driving school wireless solution, which provides an overall wireless network solution for the needs of motor vehicle driving schools and test venues for wireless networks. Boxun® seamless roaming driving school wireless solution not only has the advantages of the above-mentioned technology and application, but also solves the problem of seamless roaming transmission on the wireless network when the vehicle is driving at high speed. When the vehicle is driving, the data of monitoring video, voice or different protocols will be well transmitted through the seamless roaming link. Boxun® seamless roaming driving school wireless solution allows driving schools and test rooms to achieve electronic test scoring in simulation teaching, field test (subject 2), especially road test (subject 3), so as to better reach the national industry Regulations and requirements to meet the needs of users in the driving school industry.
2. Our advantages
Excellent radio frequency performance
Boxun® fast roaming switching mechanism
Same-frequency networking technology, fast switching of clients reaches the millisecond level
Comprehensive environmental status monitoring mechanism, automatically select the best AP according to the environment
Faster convergence rate algorithm
Optimize roaming mobile video transmission, smooth video transmission on the move
BMS Cloud Enterprise wireless cloud network management
Intelligent load balancing, balanced access of multiple vehicle terminals
Easy to deploy, flexible networking
3. Boxun® seamless roaming driving school wireless solution
Driving school electronic test system integration
Driving schoolElectronic examThe system, in subject two (field test) and subject three (road test), can realize the electronic automatic test of all scoring operations for students in the driving test, without the examiner participating in the test and scoring. The main components of the electronic exam include:
1. Monitoring system:
The images captured by the vehicle cab camera and vehicle head camera are transmitted to the video server (or an IP camera), and then transmitted to the vehicle network switch. The data of other devices are transmitted to the BXICPE2000n-2-M wireless access client together, and then transmitted back to the test center through the Wi-Fi wireless network. In the hall of the test center, a large-scale monitoring display screen is generally deployed, which can control and monitor the camera monitoring images of multiple test vehicles at the same time. Generally, there are multiple video surveillance industrial computers in the hall of the test center, and the staff can manipulate and switch to view the video of each vehicle. Video surveillance data can be recorded and backed up in real time.
2. Test room ground equipment:
In some examinations of subject two and subject three, some infrared sensors and pressure sensors are arranged in the examination room and on the road to realize the collection of judging data on the distance from the marking line, crossing the line, pressing the line, crossing the manhole cover, and unilateral bridge. The data of these ground equipment can be transmitted back to the test center via optical fiber or Wi-Fi wireless network.
3. Vehicle sensor:
The test vehicle is generally equipped with gearshift sensors, vehicle speed sensors, pedal sensors, etc., to realize the operation of the vehicle driving actions and steps during the driving of the test vehicle, and realize the data collection and automatic evaluation of the test. The data of the sensors installed on these vehicles are transmitted back to the test center through the Wi-Fi wireless network link of the BXICPE2000n-2-M wireless access client.
4. Data transmission and voice call:
Other data, such as the network data of the industrial control computer installed in the test vehicle, such as the control to play the prompt voice for the test students, and the real-time voice call (Wi-Fi phone) between the test center and the test vehicle, etc., can all be passed through Boxun® The Wi-Fi wireless network link of the BXICPE2000n-2-M wireless access client is transmitted back to the test center.
5. Test center monitoring score:
The test center monitors and scores, deploys multiple servers in the test center, analyzes and processes the data collected by the above-mentioned equipment and systems, and scores the operation of the test students while driving the vehicle. Because the data collected by the above-mentioned equipment and systems are complete, the test The central scoring system can quickly score all scoring items, and can also provide real-time voice calls for students driving in the test.
Driving school electronic test system and wireless network integration
1. Venue test wireless network
The test site of the motor vehicle driving school (Subject 2) is a large test site that includes parking/entry test and multiple site driving tests. For parking/entry test, the driving distance of vehicles is very short, and the scope of the venue is small; the field driving test is a short, single/multi-lane road containing multiple items, so the scope of the entire test venue is limited, generally long and wide They are all about a few hundred meters away.
Adopting Boxun® BXO outdoor intelligent base station, can well realize the wireless coverage of the examination room. According to the site environment, omnidirectional (antenna) base stations or sector (antenna) base stations can be selected. The omnidirectional base station integrates 13dBi MIMO 2×2 omnidirectional antenna, and the sector base station integrates 15dBi MIMO 2×2 120° sector antenna, which fully meets the coverage of the entire examination venue. The installation location of the equipment can be a tower, a telephone pole, the top of a house, etc., which are all suitable for convenient installation. Boxun® BXO outdoor intelligent base station has large-scale coverage, high bandwidth (300Mbps × 2) and high access capacity performance, which effectively reduces equipment deployment and reduces the requirements for basic conditions and engineering installation.
The BXICPE2000n-2-M client is installed on the test vehicle, and the omnidirectional antenna can be connected to the roof of the car, and it can be connected to the BXO outdoor intelligent base station wirelessly to realize the monitoring video on the vehicle and the data of various sensors. Transmission of voice data, etc. When the vehicle is running, various data can be transmitted stably and quickly to ensure the accuracy and reliability of the electronic examination system.
Wi-Fi network in driving school
1. Road test wireless network
The road test (subject 3) test site of the motor vehicle driving school is a venue for actual road driving tests. It is a site that simulates real roads with longer distances and more lanes, or tests on actual urban roads. The entire road for the road test is about several kilometers in length. It is generally a two-way road, including traffic intersections, sidewalks, walking paths, or bicycle paths.
The use of Boxun® BXO outdoor intelligent base station can provide good coverage of the test road and achieve the effect of seamless coverage. According to the site environment, omnidirectional (antenna) base stations or sector (antenna) base stations can be selected. The omnidirectional base station integrates 13dBi MIMO 2×2 omnidirectional antenna, and the sector base station integrates 15dBi MIMO 2×2 120° sector antenna. Boxun® BXO outdoor intelligent base stations are installed in sequence along the test road, with a suitable distance between the base stations, to ensure that the test vehicle achieves a good seamless roaming transmission effect during high-speed driving. Boxun® BXO outdoor intelligent base station has a large coverage area, high bandwidth and access capacity. Boxun®’s unique fast roaming switching mechanism, same-frequency networking technology, seamless roaming video optimization processing, etc., ensure the stable transmission of surveillance video, voice and various sensor data on the test vehicle, so that the electronic test system is accurate and reliable Running.
A road coverage network composed of multiple BXO outdoor intelligent base stations. The network interconnection between the base stations can use the integrated 5GHz frequency band module of the BXO outdoor intelligent base station. The integrated 5GHz frequency band module of the base station, MIMO 2×2:2 spatial data stream, 300Mbps wireless bandwidth, provides SMA antenna interface×2, and can be connected to an external antenna supporting 5GHz. In the wireless networking between base stations, the 5GHz module is connected to an external antenna to realize a wireless bridging link. For example, if an external 5GHz omnidirectional antenna is connected, the BXO outdoor intelligent base stations can be easily networked with each other, and the site selection and installation are simpler.
The BXICPE2000n-2-M client is also installed on the test vehicle, and the roof is connected to an omnidirectional antenna. When the test vehicle is running on the road, seamless roaming between the Boxun® BXO outdoor intelligent base stations in different locations is realized, and data is transmitted quickly and stably. The vehicle speed supports more than 80 km/h, which fully meets the needs of the motor vehicle driver’s license test.
Wireless network for driving school road test section
1. BMS Cloud Enterprise wireless cloud network management
The BMS Cloud Enterprise cloud wireless network management system adopts a complete software architecture, easy to install, easy to network, and easy to operate. It is a simple, practical and economical wireless cloud network management system. The BMS Cloud Enterprise wireless cloud network management system adopts a flexible “server/web browser” operation mode. The BMS Cloud Enterprise wireless cloud network management system can automatically discover Boxun® series wireless network products. The complete management functions include: configuration modification, maintenance and upgrade, fault alarm, wireless network monitoring, wireless user management, etc. The operation interface of the BMS Cloud Enterprise wireless cloud network management system is simple and intuitive, which is convenient for quick mastering and use without professional training.
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