Wireless communication protocol system for computer road examination system
A wireless communication protocol, communication protocol technology, applied in the field of wireless communication protocol system, can solve problems such as complex hierarchical structure, garbled data, inapplicability, etc., and achieve the effect of solving communication conflicts, the protocol system is simple and clear, and easy to program.
Inactive Publication Date: 2013-04-10
BEIJING JIAOTONG UNIV
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In particular, some data transmission equipment in the venue may have the same communication frequency band (for example, when data transmission uses common radio stations for communication), so that communication conflicts, data garbled characters, and data loss are likely to occur
[0005] Moreover, in order to reduce costs, the data transmission equipment of the computer road test system often adopts a single-chip embedded hardware platform with low performance and low price, which is not suitable for writing complex programs
The commonly used standard communication protocols are mostly a complete set of protocols with complex hierarchical structures and complex implementation procedures for writing protocols, so commonly used standard communication protocols are not suitable for computer road test systems
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0031] figure 1 It is a schematic diagram of data transmission of the computer road test system, such as figure 1 As shown, the computerized road test system generally consists of a site road system, a vehicle system and a test center system. The site road system is mainly composed of site road surface detection sensors and site road surface data transmission equipment; the vehicle-mounted system is composed of vehicle-mounted detection sensors and vehicle-mounted data transmission equipment; the test center system is mainly composed of servers and personal computers. Two-way wireless communication is possible between these three systems.
[0032] On the one hand, the site road surface system can se...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a wireless communication protocol system for a computer road examination system. The computer road examination system comprises a site roadway system, a vehicle-mounted system and an examination center system. The wireless communication protocol system comprises a first communication protocol module and a second communication protocol module, wherein the first communication protocol module is used for realizing information transmission between the site roadway system and the vehicle-mounted system, and the second communication protocol module is used for realizing the information transmission between the vehicle-mounted system and the examination center system. Based on the communication protocol system, the reliability and the stability of the wireless data transmission of the computer examination system are improved. The wireless communication protocol system has simple protocol and complete function and is easy to realize on singlechip embedded equipment with lower hardware performance.
Description
technical field [0001] The invention relates to a wireless communication protocol system for a computerized road test system, in particular to a computerized road test system for motor vehicle drivers. Background technique [0002] According to the relevant regulations of the Ministry of Public Security, the motor vehicle driver road test system is a compulsory subject for the motor vehicle driver test. Motor vehicle driver computer road test system (referred to as computer road test system) is a computer-controlled comprehensive network system, which uses advanced electronic sensors, data acquisition, wireless communication, data storage and other technologies to achieve scientific, standardized and It can automatically complete the whole process of the motor vehicle driver's road test, and automatically judge the examinee's real ability to control and drive a motor vehicle. Compared with the traditional and backward road test system with manual assessment, the computerize...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04W80/00
Inventor 毕军关伟齐龙涛王璐
Owner BEIJING JIAOTONG UNIV