Driving school test vehicle wireless communication solution

>> Application requirements:

According to the current national requirements for driver test, the driver test center needs to conduct an electronic test, and finally achieve the purpose of a pure computer test. The electronic test needs to solve the problem of the connection between the vehicles of subject two and three and the data of the test center. Safe, reliable and stable access to the test center. Wireless communication method is the best choice;

>> Design requirements:

1. Subject 2 design requirements

1. The monitoring center can conduct voice intercom with test vehicle candidates;

2. The test vehicle requires the installation of 3 cameras to realize real-time monitoring of the test vehicle before, after and in the cab;

3. The image of the monitoring center should be clear and smooth;

4. The wireless network coverage of the test site is not less than 1 km, the link requirements are stable and reliable, and the wireless network transmission rate is high, which meets the application of video transmission and other services;

5. The required wireless network equipment has strong anti-interference ability, good confidentiality, safety, stability, and reliability, and is suitable for use in complex environments;

6. The equipment selected by the system requires practical, advanced technology and high cost performance;

7. The system has strong expansion functions and the ability to carry new services.

2. Subject three design requirements

1. Achieve full coverage of the three subject examination routes;

2. The test car driving on the test route requires real-time transmission of video and data;

3. The video of the monitoring center requires clear and smooth and real-time transmission of test data;

>> Solution

Bodacom BodaCOM mesh industrial-grade wireless bridge can meet the wireless communication requirements of Subject 2 and Subject 3 exams. By installing a base station bridge in the driving school test center, it covers the Test 2 test center and realizes the data connection between the Branch 2 vehicle and the test center. The examination route of Section 3 is longer, 3-10KM, and wireless coverage of the road can be achieved by placing base stations on the road, and the test vehicle can transmit the video to the monitoring center in real time on the road.

>> Features

Pure outdoor design of base station equipment, IP67 protection level, long distance coverage;

Adopt high-speed roaming communication protocol HPMP to achieve fast roaming switching on the vehicle side;

The bandwidth is stable and the delay is small during driving, which meets the real-time switching of vehicle video and test data;

The vehicle-mounted wireless devices are designed to install vehicle standards, support vehicle battery power supply standards, have low power consumption, and stable equipment to meet high-speed mobile communication needs.

>> Scheme design:

Section 2 design

Program description:

One wireless receiving base station is installed in the subject two examination room to cover the entire subject two examination site. Each test vehicle is equipped with a wireless car client, which is linked to the test host. When the car is in the venue for the test, the test host data and car video can be transmitted to the monitoring center in real time.

Section III scheme design:

Program description:

Road Coverage Design: Base stations are arranged along the roads prescribed by the test to achieve wireless coverage of the test roads. The base stations are connected by optical cables or wireless methods to achieve networking between the base stations.

Test vehicle installation description: Each test vehicle is equipped with wireless on-board equipment. A camera is installed in the test vehicle and installed in the cab to realize the monitoring of the test process of candidates in the cab. When the car is driving at high speed on the test road, the test car realizes high-speed roaming between the base stations, and maintains a smooth two-way network communication between the client and the base station. Transmit the image and data information to the command center monitoring room in real time.