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GPRS wireless bus attendance system is a set of remote data collection, management and analysis system developed based on GPRS wireless communication technology of China Mobile Communications Corporation. The system includes GPRS smart card terminal equipment, data management center, query client, and transmission network. The GPRS smart card terminal transmits the card data, receives it after monitoring the data, and then sends it to the data receiving server. The data acceptance server analyzes and processes the card swiping data from the smart card terminal, and forms files, graphics and animations, etc., so that the management personnel can conveniently, intuitively and timely know various information of the smart card user. This equipment is suitable for bus attendance system, home-school communication, membership consumption, chain store attendance…etc. different. Single computer attendance is RS-232 or RS-485 communication; LAN attendance is RS-485 or RS-485 to TCP/IPT communication; WAN attendance is TCP/IP communication; U disk attendance is U disk format file communication ; GPRS wireless bus attendance is communicated through GPRS, no wiring is required, and it is convenient and flexible to use.
System features:
1.not limited by distance
Zhishengda GPRS wireless attendance terminal uses GPRS communication method to realize information transmission for bus wireless attendance, and transmits the attendance information of each bus to the mathematical management center through GPRS wireless module. Since this method uses China Mobile Data Network for transmission, it greatly facilitates the unified management of attendance information for buses scattered in different areas.
2.Easy and simple network establishment, no wiring required
The biggest advantage of using Zhishengda GPRS wireless bus attendance terminal is the simplicity of its network establishment. For example, every time you add a bus attendance point, you only need to install a wireless attendance terminal at the fixed point, no wiring, no need to add computers, and no need to increase the investment of wired network. This also greatly reduces the cost of network expansion.
3.Powerful software
1) System management
A. Change password: Provide the function of changing the password for the user. The user enters the old password, then enters the new password, and confirms it. When logging in to the system again, the system will use the old password as verification.
B. Shift management: for users to realize shift shifts without managing the system, users can log in to the system by changing their names to realize multiple shift shifts, and log records are recorded for each shift;
C. User management: provide super user with the function of user management, can add new users who use the system, set user permissions, divided into “system administrator permissions” and “common user permissions”, and can delete and modify user information;
D. Rights management: user rights management, to achieve the assignment of rights to “system administrators” and “common administrators”.
2) Bus file and module management
A. GPRS module information: You can add, edit and delete the GPRS module and the corresponding card reader (the master-slave table is distinct); you should pay attention to the corresponding relationship during operation, one module (gprs) corresponds to multiple card readers .When adding a GPRS module, you should save the record first, and then add the corresponding card reader record.
B. Bus file management: You can add, edit and modify bus files.
System technical parameters
1.System capacity: 30,000 records can be stored
2. Transmission method: GPRS mobile network;
4.Card reader: PHILIPS M1 card or EM ID card
5.Display mode: LCD display, Chinese character display, easy to operate
6. Swipe the card to upload in real time, and at the same time perform data storage and backup for reference and collection.
Advantages of the system
1. GPRS adopts the method of charging according to the data byte flow, and it is always online without charging. There is no long dial-up verification time of ordinary MODEM, and it can carry out burst real-time data transmission.
2. GPRS is a packet switching technology, which has the advantages of “real-time online”, “accounting by volume”, “quick login”, “high-speed transmission” and “free switching”.
3. Compared with the GPS positioning system, we only need to install the GPRS wireless attendance machine at a fixed point without installing the GPS positioning system on each vehicle. This greatly saves the cost of hardware. Compared with manual work, it not only saves manpower, but also ensures the accuracy and authenticity of data!
Appendix:
What is GPRS?
Answer: GPRS is the English abbreviation of General Packet Radio Service (General Packet Radio Service), which is a new packet data bearer service. GPRS is a packet switched system. Therefore, GPRS is especially suitable for intermittent, bursty or frequent, small amount of data transmission, and also suitable for occasional large data transmission. This feature is suitable for most mobile Internet applications.
What is the speed of GPRS? How can the theoretically supported maximum rate be realized?
Answer: The theoretical maximum rate supported by the GPRS network built by CMCC is 171.2kbps. It is realized when the coding method is CS-4, and the wireless environment is good and the channel is sufficient. When GPRS reaches the theoretical maximum value of 171.2kbps, it can fully support some multimedia image transmission services and other applications with high bandwidth requirements, but the actual data transmission rate is affected by the network coding method and the factors supported by the terminal. Now the user’s access speed is about 30kbps-40kbps, after using the data acceleration system, the speed is about 60kbps-80kbps.
How long is the GPRS access time?
Answer: The GPRS mobile phone can be attached to the GPRS network as soon as it is turned on, that is, it has established contact with the GPRS network. The attachment time is generally 3-5 seconds; when using the GPRS data service, an activation process is required, which is generally 1-3 seconds. After that, it is fully connected to the Internet.
Can GPRS roam?
Answer: The automatic roaming of GPRS can be realized in the places covered by GPRS in China, and users will not be charged GPRS roaming charges when roaming.
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