Public Transport Attendance Scheme for the Management Section of High-grade Highways in Dali, Yunnan
chrispeng [ad_1]
1. Company profile:
The predecessor of Xi’an West Valley Micropower Digital Technology Company is Chengdu West Valley Shuguang Digital Technology Company, founded by the famous Chinese American microwave expert Dr. Liao Yingcheng. It is a high-tech team formed by domestic and foreign experts who have long been engaged in wireless digital microwave technology in the Silicon Valley of the United States. Through continuous practice and independent innovation, several key issues affecting the application and promotion of technologies such as Zigbee and RFID have been successfully resolved: low power consumption, communication distance, use flexibility, low cost, and reliability. It has formed a complete patented technology system with Super-Zigbee and i3RFID as the core and mature industrial-grade products, which can provide a world-leading high reliability for wireless digital communication and management within a few kilometers of the end of all walks of life. , Low-cost communication platform, provides a unique global complete solution for long-distance intelligent wireless identification, wireless real-time positioning, high-reliability wireless digital transmission, wireless industrial control network, intelligent wireless sensor network, etc., opening up wireless micro-power applications A broad market in the field.
2. Project requirements:
The card reading equipment is installed at 4 different points. When each bus with electronic tags passes through different points, the card reading equipment will automatically recognize and record the passing time. Each point must transmit the data to the management point through the PC every day. The report is generated and printed out by the machine and system software.
3. Project analysis:
Background analysis and comparison of various solutions: Considering the stability of the system and the implementation environment, we adopt two solutions to transfer the data of the card reader to the PC.
The first type: Adopt ADSL, this scheme involves the telephone line. Therefore, there are many shortcomings, such as high cost, long construction period, and large manpower required. Therefore, we do not recommend using this program, so the GPRS program is introduced in detail. Type 2: GPRS 1) Products used in the project: electronic tags and outdoor readers of Xi’an Xigu Micropower Data Technology Co., Ltd., see the following table for details:
620)this.style.width=620;” border=0>
2) System building diagram
620)this.style.width=620;” border=0>
3) Specific analysis:
Realize the communication between the electronic label and the card reader:
Each bus is equipped with West Valley’s electronic tag WV-CID300, and each bus is written with a different ID number in the electronic tag, and West Valley’s card reader is installed at each station. When the bus passes the station, the card reader will automatically read the ID number on the electronic tag and record the time and other information. Realize the communication between the card reader and the PC terminal: the data connected to each card reader is transmitted to the GPRS module connected to it, and then transferred to the GPRS module connected to the PC. Finally, the GPRS module is connected to the PC via RS232. Through analysis The software analyzes the data and then prints it.
4. The price reference table of West Valley Bus Time Attendance System:
620)this.style.width=620;” border=0>
Five, matters needing attention:
We only provide product and technical support, not installation. In addition, the GPRS module needs to be purchased by the customer, and Xigu’s products have a standard interface.
[ad_2]
